Entries |
Document | Title | Date |
20080204665 | Color combiner for solid-state light sources - An illumination apparatus has first and second optical condenser systems sharing a common aperture. The first optical condenser system has a first solid-state light source having a first spectral band and a first curved surface spaced apart from the first solid-state light source and treated to reflect the first spectral band along a first optical path to exit at the common aperture and to pass light outside the first spectral band. The second optical condenser system has a second solid-state light source having a second spectral band and a second curved surface disposed behind the first curved surface with respect to the first and second light sources and treated to reflect the second spectral band along a second optical path to exit at the common aperture. | 08-28-2008 |
20080212035 | System and method for aligning RGB light in a single modulator projector - A projection system that includes a singe light modulation device and a plurality of light sources of different wavelengths. Each wavelength of light is incident on the light modulation device at a spatially distinct location and a temporally distinct time. The use of a scanning mirror allows the projection system to sequentially form, in full-color, each of the columns or rows of an image. The projection system is characterized by the reduction of color separation or the rainbow effect due to the rendering of each column or row in full color. | 09-04-2008 |
20080212036 | Projection Type Color Projector - A projection type color projector apparatus comprising: a laser light source configured to emit laser beams of three colors, red, green, and blue, in accordance with an image signal for projecting a color image on a screen; and a color image generating unit configured to generate the color image based on the laser beams, among spot diameters of the laser beams of three colors making up each pixel of the color image, a spot diameter of one laser beam being different from a spot diameter of another laser beam. | 09-04-2008 |
20080218699 | DISPLAY DEVICE HAVING PLURALITY OF LIGHT SOURCES AND USING DIFFRACTIVE LIGHT MODULATOR, CAPABLE OF REDUCING SPECKLES - Disclosed herein is a display device using a diffractive light modulator, which is provided with a plurality of light sources that emit different wavelengths, thus being capable of reducing speckles. The display device using a diffractive light modulator includes a light source unit, an illumination unit, a diffractive light modulator, and a projection unit. | 09-11-2008 |
20080225238 | PROJECTOR - A projector includes a lighting optical system for emitting a lighting beam, a color separation/light guiding optical system for separating the lighting beam from the lighting optical system into optical paths for three colored light beams, a light modulation device provided for each of the colored light beams and for modulating the light beam, which is separated and guided to the optical path for each of the colored light beams by the color separation/light guiding optical system, in accordance with image information, a light beam combining optical system for combining the colored light beams each modulated by the light modulation device for each of the colored light beams, and a projection optical system for projecting the light beams output via the light beam combining optical system. | 09-18-2008 |
20080239244 | Hologram element, illumination device, projector, and method of manufacturing hologram element - A hologram element that forms a predetermined illumination pattern on an irradiated surface by diffracting incident light is disclosed. The illumination pattern is formed by making light in a first wavelength region diffracted in a first region, and the illumination pattern is formed by making light in a second wavelength region different from the first wavelength region diffracted in a second region on the same plane as the first region. | 10-02-2008 |
20080252854 | ILLUMINATION SYSTEM - An illumination system includes a light source module, a chromaticity-adjusting light source and a light-combining element. The light source module provides a first color light beam, a second color light beam and a third color light beam. The chromaticity-adjusting light source provides a chromaticity-adjusting light beam. The light-combining element is disposed on the transmission paths of the chromaticity-adjusting light beam and the color light beams provided by the light source module to combine the color light beams with the chromaticity-adjusting light beam into an illumination beam. | 10-16-2008 |
20080252855 | PROJECTION OPTICAL SYSTEM - Provided is a projection optical system. The projection optical system includes: A projection optical system comprising: a first optical part that comprises at least one optical lens, and projects and displays light beams; a second optical part that comprises an image forming element and at least one optical lens, and emits incident light beams as light beams with images; and a third optical part that comprises a light source unit and a deflector that is located between the first and second optical parts, and directs light beams emitted from the light source unit to the second optical part and directs the light beams with images emitted from the second optical part to the first optical part. | 10-16-2008 |
20080259284 | ILLUMINATION DEVICE AND PROJECTION VIDEO DISPLAY DEVICE - An illumination device includes a first light source unit having a plurality of first light sources, and a first reflection unit for guiding light beams emitted respectively from the first light sources in an identical direction. The illumination device further includes a second light source unit having at least one second light source. A center of an optical axis of the second light source is defined in an area where a light amount distribution of light beams to be emitted from the first light source unit and reflected on the first reflection unit is relatively small. | 10-23-2008 |
20080259285 | ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION DEVICE - An illumination optical system has: a light source, a first optical member, a second optical member, and a rod integrator, and illuminates an image display surface of a display element. The light source emits illumination light having a flat beam cross section. The first optical member reduces flatness of the beam cross section. The second optical member condenses or diverges the illumination light. The rod integrator uniformizes spatial energy distribution of the illumination light subjected to optical action of the first and second optical members. | 10-23-2008 |
20080259286 | Projection display apparatus - A projection display apparatus includes a light source, a plurality of light modulating elements that respectively modulate different color components of light emitted from the light source, a plurality of light diffusing elements that are disposed on sides near the light source with reference to the respective light modulating elements, a light integrating element that integrates the different color components modulated by the light modulating elements, and a projection optical element that projects light resulting from the different color components integrated by the light integrating element. | 10-23-2008 |
20080278691 | Color Mixing Rod Integrator in a Laser-Based Projector - The present invention provides a system ( | 11-13-2008 |
20080291400 | PROJECTION DISPLAY DEVICE - A mirror unit is operable to reflect light from a lens unit for projection in such a manner that, assuming that a light guiding optical system is divided into two areas with respect to a center axis of light combined by a light combining section such as a dichroic prism, a divided area having a smaller width in a direction perpendicular to the center axis is located on the side of a projection plane as a screen. The mirror unit includes e.g. a bending mirror for bending an optical path of light through the lens unit, and a curved mirror for projecting the light reflected on the bending mirror onto the projection plane. | 11-27-2008 |
20080297729 | Projector - A projector includes: an image creation unit that projects image information upon a screen, comprising a plurality of picture elements that create an image pattern corresponding to the image information; and an illumination unit in which light emitting members are disposed upon a vertical plane with respect to an optical axis which passes through a center of the image creation unit, at equal distances from the optical axis and moreover in different locations. | 12-04-2008 |
20080297730 | Projector - A projector includes: a plurality of light sources for generating lights having different colors; a spatial optical modulator for performing a line-modulation of the lights; wavelength selection filters, disposed between the light sources and the spatial optical modulator, for transmitting or reflecting the lights according to light wavelengths; and a scanner for projecting the light incident from the spatial optical modulator in a line-scan scheme. | 12-04-2008 |
20080309885 | PROJECTION DISPLAY DEVICE - An optical system (light guiding optical system) for guiding G-light and R-light to liquid crystal panels is protruded in an opposite direction from projection optical system with regard to an optical axis of a light source. A space is created between an optical engine and a wall surface, and air stream for suction fan is thus secured. A distance (H | 12-18-2008 |
20080309886 | Controllable Light Monitor Element and Device For Use - The invention relates to a controllable light modulator (M) whose transmission can be controlled by the intensity of electric fields, wherein it is exposed to an intensity-controlled microwave field. Furthermore a device for laser projection is illustrated which is controlled by a light modulator of this kind. | 12-18-2008 |
20080309887 | Micro-scanner and image projection apparatus using the same - A micro-scanner adapted for being miniaturized and an image projection apparatus using the same. The micro-scanner includes a scan mirror for scanning incident light to a screen while swinging about a rotary shaft; and upper and lower supports for rotatably supporting the top and bottom parts of the rotary shaft. The upper and lower supports having a driving unit for supplying driving force for rotating the scan mirror. | 12-18-2008 |
20090002638 | PROJECTION DISPLAY APPARATUS - A projection display apparatus includes: an illumination optical unit which emits beams; an image display element which modulates the beams according to image information; a spatial-beam changing unit which changes spatial positions of the beams emitted from the illumination optical unit; and a uniform-beam distribution unit, disposed between the spatial-beam changing unit and the image display element, which uniformly distributes the beams. The spatial-beam changing unit includes a moveable prism, a movement of which changes the spatial positions of the beams emitted therefrom. | 01-01-2009 |
20090002639 | Fly-Eye Lens, Optical Unit and Display Apparatus - A fly-eye lens includes multiple sub-lenses laid out in a matrix form, wherein a part of the lens surface of one sub-lens of the multiple sub-lenses has an oddly-shaped part having a different shape from the shape of the lens surface of the other sub-lenses. | 01-01-2009 |
20090002640 | DISPLAY DEVICE AND METHOD USING LASER LIGHT SOURCES AND RECORD MEDIA RECODED PROGRAM REALIZING THE SAME - A display device includes a red laser light source which irradiates light in wavelength range of 636 nm to 645 nm; and a light projector which modulates and project the light on screen. With a display device according to embodiments of the present disclosure, the projected image may be by using three laser light sources which irradiate red, green and blue light each of which wavelengths is limited to 636 nm to 645 nm, 520 nm to 532 nm or 430 nm to 454 nm. | 01-01-2009 |
20090009723 | Methods, Systems, and Computer Program Products for Full Spectrum Projection - A broadband electromagnetic wave beam is projected from a broadband wave source ( | 01-08-2009 |
20090009724 | Projector - A projector includes a first image formation unit including a first color separation system having a first dichroic mirror that separates the light containing first to third color light components from an illuminator into a light beam containing one of the three color light components and a light beam containing the other two color light components and a second dichroic mirror that separates the light beam that has been separated by the first dichroic mirror and contains the other two color light components, first to third light modulation elements that modulate the first to third color light beams that have been separated by the first color separation system, and a first color combining system that combines image light beams corresponding to the first to third color light beams that have been modulated by the first to third light modulation elements; a second image formation unit including a second color separation system having a third dichroic mirror that separates the light containing the first to third color light components from the illuminator into a light beam containing one of the three color light components and a light beam containing the other two color light components and a fourth dichroic mirror that separates the light beam that has been separated by the third dichroic mirror and contains the other two color light components, fourth to sixth light modulation elements that modulate the first to third color light beams that have been separated by the second color separation system, and a second color combining system that combines image light beams corresponding to the first to third color light beams that have been modulated by the fourth to sixth light modulation elements; a polarization combining system that combines the image light beam outputted from the first image formation unit and the image light beam outputted from the second image formation unit; and a projection system that projects the image light beam that has been combined in the polarization combining system. For each of two color light beams among the first to third color light beams, the image light beams corresponding to the same color light beams outputted from the first and second image formation units are projected in such a way that the image light beams are reversed from each other in the right-left direction on a projection surface. | 01-08-2009 |
20090009725 | PROJECTION SYSTEM, OPTICAL SYSTEM THEREOF AND PROJECTING METHOD THEREOF - An optical system for a projector is provided, including a light source generating laser beams, a transforming sheet, a panel, and a lens set. Laser beams from planar light sources penetrate the transforming sheet and are uniformly transformed to be rectangular beams, acting as light beams from a planar light source. The rectangular laser beams pass through the panel to generate an image which is projected to a screen by the lens set. | 01-08-2009 |
20090015797 | PROJECTOR DEVICE, LAMINATE TYPE LIGHT-EMITTING DIODE DEVICE, AND REFLECTION TYPE LIGHT-EMITTING DIODE UNIT - A laminate type light emitting diode device having excellent heat radiation performance and high output capability is provided. A plurality of reflection type light emitting diode units | 01-15-2009 |
20090027623 | Optical apparatus and projection display system - An optical apparatus may include spectroscope means for splitting light irradiated from a light source into multiple color rays, polarizer means for polarizing the multiple color rays split by the spectroscope means, and trimming filters each trimming a wavelength component of at least one of the multiple color rays polarized through the polarizer means and guiding the resulting ray to an optical modulator, wherein at least one of the trimming filters is sloped about an optical axis. | 01-29-2009 |
20090027624 | Projection Apparatus - A projection apparatus is provided. In this projection apparatus, the first light source, the second light source and the third light source provide the first colored light, the second colored light and the third colored light, respectively. The first digital micromirror device (DMD) modulates and reflects the first colored light, while the second DMD modulates and reflects the second and third colored lights guided by the first light guiding device. Subsequently, the second light guiding device guides the colored lights reflected from the first DMD and the second DMD to the projection lens. | 01-29-2009 |
20090027625 | Image Projection Apparatus and a Light Source Module Thereof - An image projection apparatus includes a light source module, a lens unit, a light valve, and a projection lens. The light source module includes at least one laser array, at least one reflecting unit, a diffusing member, and a light uniformizing unit. The laser array includes a plurality of laser units that are arranged in a matrix. The reflecting unit has a plurality of reflecting surfaces that are non-parallel to each other, and that are disposed to receive and reflect laser beams emitted by the laser units. The diffusing member is disposed to receive and diffuse the laser beams reflected from the reflecting surfaces so as to form an illumination beam. The light uniformizing unit is disposed to receive and uniformize the illumination beam from the diffusing member. | 01-29-2009 |
20090033875 | System and Method for Utilizing a Scanning Beam to Display an Image - A method includes generating a plurality of beams that each illuminate a separate portion of a spatial light modulator. The spatial light modulator has a first dimension of a first length and a second dimension of a second length. Each of the beams spans a portion of the first length of the first dimension and a portion of the second length of the second dimension. The method also includes scrolling the plurality of beams along the second dimension of the spatial light modulator while maintaining at least a first gap between each of the plurality of beams. | 02-05-2009 |
20090033876 | ILLUMINATOR AND PROJECTION DISPLAY EMPLOYING IT - An illuminator includes a color composition prism ( | 02-05-2009 |
20090040466 | IMAGE DISPLAY DEVICE - An image display device includes: a screen having a fluorescent region including a fluorescent material; a light irradiation system, including: a first light source outputting excitation light exciting the fluorescent material; a second light source outputting visible light; a driving unit individually operating the first light source and the second light source corresponding to image information; and a scanning unit scanning with a light beam output from each of the first light source and the second light source in a main scanning direction and a sub-scanning direction intersecting with the main scanning direction on the screen; and | 02-12-2009 |
20090066916 | SCANNING LASER PROJECTOR WITH REDUCED LASER POWER INCIDENT ON THE RETINA - A scanning laser projector projects multiple laser beams. The multiple laser beams have angular offsets relative to each other to separate the spots created by the laser beams on a projection surface. The angular offsets are set based on the desired spacing between the spots. Parameters within a video processing path are set to allow different pixel data to be simultaneously processed for each of the projected laser beams. | 03-12-2009 |
20090079943 | Multi-wavelength light-emitting module - A multi-wavelength light-emitting module that includes a PCB, a drive IC structure, a conductive structure, a multi-wavelength LED array set, a plurality of conductive elements, and an optical amplifier structure. The PCB has at least one input/output pad. The drive IC structure is disposed on the PCB and having at least one concave groove formed on top surface thereof. The conductive structure is electrically connected between the drive IC structure and the at least one input/output pad. The multi-wavelength LED array set is received in the at least one concave groove. The conductive elements are electrically connected between drive IC structure and the multi-wavelength LED array set, respectively. The optical amplifier structure is disposed over the multi-wavelength LED array set for receiving light sources from the multi-wavelength LED array set. | 03-26-2009 |
20090086169 | PROJECTION TYPE IMAGE DISPLAY DEVICE - There is provided a projection type image display device capable of simplifying cooling of light source elements of light source arrays, thereby reducing the size of refrigerating means, dispensing with complicated temperature adjustment and reducing the manufacturing cost and the electric power cost. The projection type image display device can attain projection light by modulating light beams of at least three primary colors in accordance with image information and synthesizing the modulated light beams. The projection type image display device comprises a light source unit constituted by arranging a plurality of light source elements hierarchically so as to conduct the light beams of the colors to irradiation surfaces of a synthesizing prism, the light source elements comprising light source arrays each of plural light emitting elements arranged on one and same substrate, the light source arrays being arranged on heat receiving plates respectively; refrigerating means including at least a refrigerant compressor, a condenser, a pressure reducing device and a refrigerant pipe constituting an evaporator; and auxiliary cooling means lower in cooling capacity than the refrigerating means. Of the plural light source arrays, those relatively large in the amount of heat generated are connected to the refrigerating means, while the others are connected to the auxiliary cooling means. | 04-02-2009 |
20090091712 | PROJECTION APPARATUS, LIGHT SOURCE MODULE AND BEAM COMBINER - A beam combiner for combining a first color beam, a second color beam, and a third color beam is provided. The beam combiner has a transparent substrate with a first optical surface on which a first reflective film reflecting the first color beam is disposed, and a second optical surface on which a second reflective film reflecting the second color beam is disposed. The first optical surface and the second optical surface are parallel. The second color beam entering the transparent substrate is reflected by the second reflective film and leaves the transparent substrate by passing through the first optical surface, while the third color beam enters the transparent substrate from the second optical surface and leaves the transparent substrate by passing through the first optical surface. The optical paths of the first, the second, and the third color beam are substantially coincident after emerging from the first optical surface. | 04-09-2009 |
20090091713 | Projection display system with varying light source - The present invention provides a projection apparatus, comprising: a light source; at least one spatial light modulator for modulating illumination light from the light source by a plurality of pixel elements by using different modulation states; a light source control unit performing a modulation control of the light source; and a spatial light modulator control unit generating, from an input image signal, a control signal for driving the spatial light modulator, wherein: the light source control unit has a function of receiving data corresponding to the control signal generated by the spatial light modulator control unit, controlling a parameter of an emission pulse of the illumination light emitted from the light source, and thereby adjusting an emission intensity of the illumination light. | 04-09-2009 |
20090096995 | SPLIT SCROLLING ILLUMINATION FOR LIGHT MODULATOR PANELS - A display system in accordance with embodiments of the present invention comprises illumination means ( | 04-16-2009 |
20090109405 | HOLOGRAPHIC PROJECTION METHOD AND HOLOGRAPHIC PROJECTION DEVICE - According to the present invention, a plurality of video image data are converted into individual spatial frequency information using Fourier transformation. The individual spatial frequency information is provided to a plurality of information display unit corresponding to the individual spatial frequency information. The spatial frequency information corresponding to the plurality of video image data is displayed on the plurality of information display unit, light is irradiated onto the plurality of information display unit using a plurality of light sources corresponding to the plurality of information display unit. The spatial frequency information that is displayed by the plurality of information display unit is projected by using diffraction light, and a plurality of video images are synthesized on projection surfaces. | 04-30-2009 |
20090122266 | IMAGE PROJECTION DEVICE AND METHOD - A device for producing a two dimensional image includes means for generating coherent light, and means for directing light received from the means for generating coherent light to a plurality of electrically addressable spatial light modulators (EASLM). The device includes means for diffracting the light, wherein the light is simultaneously diffracted by the plurality of EASLM, and means for displaying the two dimensional image. The device further includes means for directing the diffracted light to the means for displaying the two dimensional image, wherein a frame rate of each of the plurality of EASLM is greater than a frame rate of the two dimensional image produced at the means for displaying the two dimensional image. | 05-14-2009 |
20090128784 | PROJECTION DISPLAY DEVICE - A projection display device is discussed, which includes an optical system having an improved arrangement, thereby being capable of reducing the size of the projection display device. | 05-21-2009 |
20090135375 | Color and brightness compensation in laser projection systems - A multi-color laser projection system comprising a multi-color laser source, laser projection optics, an optical intensity monitor, and a projection controller is provided. The multi-color laser source is configured to generate a frequency-converted optical beam λ | 05-28-2009 |
20090135376 | LIGHTING APPARATUS, DISPLAY APPARATUS, PROJECTION DISPLAY APPARATUS, LIGHTING METHOD, IMAGE DISPLAY METHOD AND IMAGE PROJECTION METHOD - Red light emitted from a red laser light source, green light emitted from a green laser light source and blue light emitted from a blue laser light source are incident on a first disc body of a color wheel, are transmitted or reflected in conformity with the colors of the lights in wavelength selecting regions of a second disc body every time the color wheel performs a predetermined rotation. AS being reflected by the first disc body, the lights are divided into different positions to be emitted from the color wheel and irradiated to irradiation regions successively switched by an upward or downward reciprocal movement of a mirror group. | 05-28-2009 |
20090135377 | PROJECTION DISPLAY DEVICE - A projection display device is discussed, which can include a condensing lens having a refractive index higher than that of a collimating lens, thereby being capable of miniaturizing not only the collimating lens, but also lenses arranged downstream from the condensing lens. | 05-28-2009 |
20090147220 | DISPLAY APPARATUS USING BILINEAR ELECTROMECHANICAL MODULATOR - A digital projection apparatus has a first light modulation subsystem with a first light source producing linear illumination of a first spectral color and a second light source producing linear illumination of a second spectral color. A first light modulator chip ( | 06-11-2009 |
20090161075 | Laser projection utilizing spatial beam misalignment - Laser projection systems are provided comprising a laser source, scanning optics, beam splitting optics, and a scanning controller. According to one embodiment, the laser source is configured to produce at least two optical beams having different emission wavelength spectrums. The beam splitting optics are positioned downstream of the scanning optics and are configured to generate wavelength-dependent spatial misalignment of the two optical beams in the image plane by splitting the two optical beams into spatially misaligned propagating axes. According to another embodiment of the present invention, the beam splitting optics are positioned downstream of the scanning optics and are configured to generate polarization-dependent spatial misalignment of the two optical beams. | 06-25-2009 |
20090161076 | Projection apparatus - A projection apparatus includes a plurality of light sources, a dichroic prism, a plurality of integrator rods, a light-deflecting optics, a light valve and a projection lens. The dichroic prism is used for forming a combined light beam. The integrator rods are positioned between the light sources and the dichroic prism for homogenizing the light beams prior to their incidence on the dichroic prism. The light-deflecting optics is used for deflecting the combined light beam emerging from the dichroic prism, and the light valve is used for receiving and then modulating the combined light beam deflected by the light-deflecting optics to form an image beam. The projection lens is used for projecting the image beam, and its optical axis is substantially parallel to the longitudinal directions of the integrator rods. | 06-25-2009 |
20090161077 | PROJECTION DISPLAY SYSTEM FOR MODULATING LIGHT BEAMS FROM PLURAL LASER LIGHT SOURCES - The present invention provides a projection display system comprising: illumination lights of plural colors emitted from plural laser light sources; an illumination optical system for illuminating the illumination light of at least one of the colors in an beam axis or in an illumination range, either of which is different from the other colors; a deflection mirror device for modulating the illumination lights of respective colors in the same deflection angle, with the modulation of each color being performed in sequence within one frame; a projection optical system for projecting the reflection light of the illumination light from the deflection mirror device; and a laser light source control circuit for controlling the intensity of the illumination light of each color, wherein the laser light source control circuit performs adjustment so that the ratio of intensity of each of the colors is a prescribed ratio. | 06-25-2009 |
20090180079 | Projected Overlay for Copy Degradation - In an embodiment, a system is provided. The system includes a visible light projector including a light source, light modulator, and projection optics. The system also includes an infra-red image generator to receive infra-red light from the light source. The system further includes focusing optics coupled to the infra-red image generator to produce an infa-red output beam. | 07-16-2009 |
20090185140 | Multi-color light source - System including first and second light sources and controller. First light source is configured to generate first light beam of first perceived color. Second light source is configured to generate second light beam of different second perceived color. Controller is configured to direct light from first light beam to an image projector during first time intervals and to direct light from second light beam to an image projector during second time intervals. First light source generates first light beam with first intensity. Second light source generates second light beam with different second intensity. Controller is configured to temporally interleave first and second time intervals such that second time intervals are longer than first time intervals. Method also provided. | 07-23-2009 |
20090195754 | IMAGE TRANSMITTING DEVICE, IMAGE TRANSMITTING SYSTEM, AND COMPUTER READABLE MEDIUM - An image transmitting system includes: an image transmitting unit that receives a projection command to project an annotation image onto an object, and transmits a captured image formed by capturing an image of the object designated by the projection command as an object onto which the annotation image is to be projected, the annotation image representing an annotation about the object; a projector that projects the annotation image in an artificially continuous manner, using an afterimage formed by intermittently projecting light onto the object; and an image capturing unit that captures an image of the object including the portion onto which the light is projected during a period between a time when the projector ends the light projection onto the object and a time when the projector starts the next light projection, and forms the captured image to be transmitted by the image transmitting unit. | 08-06-2009 |
20090201468 | IMAGE DISPLAY APPARATUS - An image display apparatus includes a light source, a color separation unit configured to separate light from the light source into colored light beams, liquid crystal display devices each configured to modulate a corresponding one of the colored light beams in accordance with an image signal, light-shielding members each configured to block light that enters an area outside an effective display area of a corresponding one of the liquid crystal display devices, a color combination unit configured to combine the colored light beams that have been modulated by the liquid crystal display devices, and a projection unit configured to project light produced by combining the colored light beams with the color combination unit, wherein the liquid crystal display devices are fixed to a heatsink, and wherein the light-shielding members each include a base member fixed to the heatsink and a mask member detachably mounted on the base member. | 08-13-2009 |
20090213337 | Image projecting system, method, computer program and recording medium - A plurality of projector apparatuses project images based on inputted image signals onto a screen so that the images are displaced relative to one another by a predetermined amount and superimposed. The luminances of an image region composed of a plurality of projected images that have been projected onto the screen are observed. Luminance values of pixels that construct an image to be projected by each projector apparatus are adjusted based on an observation result and are supplied to the plurality of projector apparatuses. The image region composed of the plurality of projected images is presented by superimposing a first projected image and a second projected image that has a higher resolution than the first projected image. Predetermined pixels in the image region are presented by superimposing corresponding pixels in the projected images from n adjacent projector apparatuses. | 08-27-2009 |
20090231550 | LASER DISPLAY DEVICE - Provided is a laser display device capable of ensuring the safety of eyes and reducing speckle noise even if a screen is arranged at an arbitrary position. The laser display device includes a laser light source for emitting a laser light, a modulator for modulating the laser light and emitting a modulated light, and a branching unit for branching the modulated light into a plurality of branched lights. At least two of the plurality of branched lights reach substantially the same positions on a screen substantially at the same timings. | 09-17-2009 |
20090262307 | System and Method for Uniform Light Generation - A system and method for uniform light generation in projection display systems. An illumination source comprises a light source to produce colored light, and a scrolling optics unit optically coupled to the light source, the scrolling optics unit configured to create lines of colored light from the colored light, and to scroll the lines of colored light along a direction orthogonal to a light path of the illumination source. The scrolling optics unit comprises a single light shaping diffuser to transform the colored light into the lines of colored light, an optical filter positioned in the light path after the light shaping diffuser, and a scrolling optics element positioned in the light path after the optical filter. The single light shaping diffuser is capable of simultaneously transforming colored light into lines of colored light having substantially uniform intensity to provide uniform illumination. | 10-22-2009 |
20090262308 | LIGHT SOURCE UNIT AND PROJECTOR - In a projector which includes a light source unit | 10-22-2009 |
20090268167 | LIGHT SOURCE UNIT AND PROJECTOR - There is provided a light source unit which includes a luminescent light source which receives excitation light so as to emit light of a predetermined wavelength band, excitation light sources which shine excitation light on to the luminescent light source, a reflection space having the luminescent light source in an interior thereof and an emission space which emits luminescent light source light emitted from the reflection space from an emission port whose area is made smaller than the area of the luminescent light source and a projector which employs the light source unit. | 10-29-2009 |
20090290128 | Tiled color filter for a projection system - A controllable reflecting device having an array of mirrors that is combined with a tiled color filter such that each micro mirror reflects a single primary color is described. The tiled color filter, in the light path between a light source and the mirror array, images one micro mirror wide primary color stripes on the micro mirror array in a repeating sequence (for example RGBRGB etc.). A movable mirror or lens in the optics path between the micro mirror array and a projection screen is moved to displace the image formed by the micro mirror array and projected to the screen such that for each image all pixel positions at the screen sequentially see a micro mirror of each primary color. | 11-26-2009 |
20090290129 | MOBILE TERMINAL DEVICE - A mobile terminal device according to an embodiment of the present invention includes a mobile terminal device main body, a laser projector that projects a two-dimensional image by performing two-dimensional scanning of laser light emitted from a semiconductor laser, and a screen that serves as a main display screen that displays a two-dimensional image projected by the laser projector. | 11-26-2009 |
20090316116 | SCANNING LASER PROJECTION DISPLAY FOR SMALL HANDHELD DEVICES - Image projection devices, high-speed fiber scanned displays and related methods for projecting an image onto a surface and interfacing with the projected image are provided. A method for projecting one or more images and obtaining feedback with an optical input-output assembly is provided. The input-output assembly comprising a light-scanning optical fiber and a sensor. The method includes generating a sequence of light in response to one or more image representations and a scan pattern of the optical fiber, articulating the optical fiber in the scan pattern, projecting the sequence of light from the articulated optical fiber, and generating a feedback signal with the sensor in response to reflections of the sequence of light. | 12-24-2009 |
20090323026 | LASER IMAGE DISPLAY DEVICE AND COLOR IMAGE DISPLAY METHOD - A laser image display device includes: a first laser light source capable of outputting a laser light having a first wavelength; a second laser light source capable of outputting a laser light having a second wavelength; and a color output conversion controller capable of individually controlling power of the first and the second laser light source displaying the pixels constituting an image according to an input signal. When an input signal is contained at the end point of the color reproducible region and the laser light having the first wavelength is driven substantially by a first maximum power while the laser light having the second wavelength is driven substantially by a second minimum power, the color output conversion controller displays in pixels, a color contained in the color reproducible region excluding the end point in the pixels by using the laser light of the first wavelength at a first power below the first maximum power and the laser light of the second wavelength at a second power above the second minimum power. | 12-31-2009 |
20090323027 | LIGHT SOURCE DEVICE AND IMAGE DISPLAY APPARATUS - A light source device includes: a light source section adapted to emit a light beam; a first optical element provided with a first entrance surface to which the light beam emitted from the light source section is input, and adapted to transmit the light beam; and a second optical element provided with a second entrance surface to which the light beam transmitted through the first optical element is input, and adapted to transmit the light beam, wherein the first entrance surface is tilted towards a direction rotated around a primary axis with respect to a principal ray of the light beam input to the first entrance surface, and the second entrance surface is tilted towards a direction rotated around a secondary axis substantially perpendicular to the primary axis with respect to the principal ray of the light beam input to the second entrance surface. | 12-31-2009 |
20090323028 | Optical system for a digital light projection system including a 3-channel LED array light engine - An optical system for a digital light projection system is provided. The optical system comprises a plurality of LED arrays, wherein each LED array comprises a plurality of LEDs. The optical system also comprises an optical concentrator element positioned substantially adjacent to each of the LED arrays, wherein each concentrator element totally internally reflects light emitted from the plurality of LEDs within the corresponding LED array so as to provide substantially uniform light at an output surface of each concentrator element, and wherein the concentrator element has a complex conic shape. The optical system preferably further comprises an optical combiner element, wherein the output surface of each concentrator element is positioned substantially adjacent to a corresponding side of the combiner element, and wherein the combiner element spatially combines the substantially uniform light provided at the output surface of each concentrator element so as to form substantially white light at an output surface of the combiner element. | 12-31-2009 |
20100002196 | PROJECTION SYSTEM - A projection system includes a multi-laser beam generator, a beam switching device, a split beam projecting device and a transmissive light valve. The multi-laser beam generator selectively generates a red beam, a green beam and a blue beam. The beam switching device receives the red, green and blue beams, splits the red, green and blue beams into a plurality of light beams of different angles, and directs the red, green and blue beams of the different angles into a common optical path. The split beam projecting device includes a plurality of micro-lenses. The transmissive light valve has a plurality of pixels for receiving the red, green and blue beams that are guided by the split beam projecting device. The red, green and blue beams of the different angles are received by the micro-lenses and guided onto the pixels of the transmissive light valve for imagining on the pixels. | 01-07-2010 |
20100002197 | PROJECTOR AND METHOD FOR CONTROLLING PROJECTOR - A projector, that projects an image on a projection surface in accordance with an image signal, includes: an optical system that includes a light source and projects projection light representing the image; an optical sensor that receives the light from the projection surface; and an adjuster that carries out a first adjustment process of adjusting the brightness of the projection light in accordance with the output from the optical sensor before the light source illuminates. | 01-07-2010 |
20100007855 | PROJECTION-TYPE IMAGE DISPLAY APPARATUS - A projection-type image display apparatus that projects an image onto a screen and includes a laser light source, an optical engine, a projection lens, and a control unit. The laser light source includes a plurality of light source units that respectively emit laser beams of different wavelengths. The optical engine combines the laser beams received from the light source and forms an image. An optical sensor is arranged in the optical engine to detect a physical property of a uniformly-scattered laser beam and outputs a physical property signal indicative of the detected physical property to the control unit. The control unit controls output powers of the light source units based on the physical property signal. | 01-14-2010 |
20100014055 | LIGHT PROJECTION SYSTEM AND DISPLAY DEVICE - The invention relates to a light projection system ( | 01-21-2010 |
20100020289 | PROJECTOR - A projector includes: light emitting devices provided in correspondence with pixels that form an image displayed on an illuminated surface, each of the light emitting devices emitting light modulated in accordance with an image signal; and shaping optical elements provided in correspondence with the light emitting devices, each of the shaping optical elements shaping the region illuminated with the light emitted from the corresponding light emitting device, wherein the shaping optical elements form a shaped light region in a position on the light path between the shaping optical elements and the illuminated surface. | 01-28-2010 |
20100020290 | METHOD FOR IMAGE PROJECTION, IMAGE PROJECTION APPARATUS AND IMAGE PROJECTION SCREEN - A method for image projection on a screen, including providing an image to be projected on the screen, determining excitation light representing the image, and illuminating with the excitation light at least one light excitable layer disposed on the screen, wherein the light excitable layer is configured to be stimulated for the emission of visible light based on the excitation light. | 01-28-2010 |
20100026961 | LIGHT MODULATION DEVICE MODULE, IMAGE FORMING APPARATUS USING THE MODULE, AND DRIVING METHOD FOR THE APPARATUS - A light modulation device module includes a support member, a light modulation device provided on the support member, the light modulation device modulating a plurality of linear light beams in different wavelength bands, a driving unit configured to drive the light modulation device, and a light transmitting member provided on the light modulation device. | 02-04-2010 |
20100033684 | METHOD TO DISPLAY IMAGES WITH METAMERIC JAMMING TO PREVENT ILLEGAL COPY - Method to display an image using four or more primaries having different spectral distributions that are distributed into three groups of primaries, wherein, in a visual color space, all primaries belonging to the same group have the same visual color and are metamehc. Each image being got from a combination of three primary images and each primary image being associated with each visual color of a group, the different primaries of each group are spatially or sequentially distributed over the primary image associated with this group, then allowing an efficient anti-copy protection based on metamerization of images, without any supplemental video processing. | 02-11-2010 |
20100033685 | LIGHTING DEVICE AND PROJECTION IMAGE DISPLAY UNIT - A lighting device, including a first light source emitting light of a first wavelength; a second light source close to the first source, emitting light of a second wavelength in almost a same direction as that of the first source; a third light source located emitting light of a third wavelength in a direction different from that of the first and second sources; a coupling optical system coupling light from the first and second sources; another coupling optical system coupling light from the third source; and a light path synthesizer synthesizing a light path of light from the first, second and third sources, wherein the light path synthesizer includes a first surface reflecting light from the first source and transmitting light from the second and third sources and a second surface unparallel with the first surface, reflecting light from the second source and transmitting light from the third source. | 02-11-2010 |
20100039622 | PROJECTION DEVICE - A projection device, having a number of light emitting diodes and an integration rod, includes a rotatable wheel. The rotatable wheel is averagely divided into different color sectors. The same color light emitting diodes are populated in the corresponding color sectors and emit the corresponding color light. The rotatable wheel and the integration rod are positioned in the path of the color light. | 02-18-2010 |
20100045937 | RECYCLING SYSTEM AND METHOD FOR INCREASING BRIGHTNESS USING LIGHT PIPES WITH ONE OR MORE LIGHT SOURCES, AND A PROJECTOR INCORPORATING THE SAME - A recycling system and method for increasing the brightness of light output using at least one recycling light pipe with at least one light source. The output end of the recycling light pipe reflects a first portion of the light back to the light source, a second portion the light to the input end of the recycling light pipe, and transmits the remaining portion of the light as output. The recycling system is incorporated into a projector to provide color projected image with increased brightness. The light source can be white LEDs, color LEDs, and dual paraboloid reflector (DPR) lamp. | 02-25-2010 |
20100053560 | LED PACKAGE HAVING IMPROVED LIGHT COUPLING EFFICIENCY FOR AN OPTICAL SYSTEM AND METHOD OF MANUFACTURE THEREOF - One aspect of an LED package, which is covered by this disclosure, includes at least two LED emitters located on a substrate wherein each of the at least two LED emitters forms an emitting area. The emitting area is substantially equal to a reflective area of the LED package, and the LED package has an optical axis that is substantially non-parallel to an optical axis of each of the at least two LED emitters. | 03-04-2010 |
20100053561 | PROJECTION DEVICE PROVIDING REDUCED SPECKLE CONTRAST - A projection device includes a diffuser and a light source system. The light source system includes a light source, a dichroic element, an actuator, and a reflector. The light source generates a light beam that is directed to the dichroic element. The dichroic element forms first and second individual light beams from the light beam. The first individual light beam is transmitted to the diffuser. The second individual light beam is reflected from the reflector to the diffuser. The actuator is fixed to the reflector and has a removal frequency exceeding 20 Hz. | 03-04-2010 |
20100060859 | PROJECTION DISPLAY WITH LED-BASED ILLUMINATION MODULE - A projection display device comprising an illumination module ( | 03-11-2010 |
20100073638 | Projection display apparatus - A projection display apparatus is provided that is capable of reducing speckle noise, with no image of a flaw or dust noticeable in or on a screen even if it exists in or on an optical component. The projection display apparatus includes a glass rod that makes uniform an optical beam emitted from a laser beam source; a lens that focuses an optical beam passing through the glass rod; a diffusion layer that provides an optical path difference distribution to the optical beam focused using the focusing element, the diffusion layer being optically conjugated with an incident end of the glass rod by the focusing element; a display device that spatially modulates the optical beam provided with the optical path difference distribution by the diffusion layer; and a magnification projection lens that projects on a screen an optical beam modulated by the modulator. | 03-25-2010 |
20100073639 | PROJECTOR APPARATUS USING PULSE-DRIVEN LIGHT SOURCES OF DIFFERENT COLORS - A projector apparatus comprises a light source configured to emit light beams of a plurality of color components, emissions of the light beams controlled individually, a projection unit configured to form images respectively corresponding to the color components using the light beams from the light source for each frame and to sequentially project the images, a driving unit configured to drive the light source so that the light beams are emitted as light pulses having respectively predetermined pulse widths for a period in which the projection unit projects each of the images, a detector configured to detect deterioration levels of the light source respectively for the color components, and a controller configured to control the pulse widths of the light beams emitted from the light source based on the deterioration levels. | 03-25-2010 |
20100079730 | PROJECTION APPARATUS AND PROJECTION METHOD - A projection apparatus projecting images of respective color components sequentially includes a light source section having a plurality of light emitting elements (where n is a natural number greater than one), and a driving control section for driving each of the light emitting elements making up the light source section, by a pulse width modulation scheme with a phase difference based on λ/n (where λ is a lighting period unit), in synchronism with a projection period unit of the image of each color component. | 04-01-2010 |
20100085541 | PROJECTOR WITH REDUCED SPECKLE CONTRAST - A projector includes a light source module, a diffuser for diffusing the light beam emitting from the light source module, and a fluorescent plate. The light source module includes a light source capable of emitting a first light beam, a dichroic device for diverging the first light beam into a second light beam and a third light beam, and a reflector with a moving frequency exceeding 20 Hz configured for reflecting the third light beam. The fluorescent plate is configured for converting the light beam passing through the diffuser into at least three kinds colored light beams. | 04-08-2010 |
20100091249 | PROJECTION OBJECTIVE AND PROJECTOR - A projector for projecting light onto a projection surface includes a first group ( | 04-15-2010 |
20100110388 | LIGHT-SOURCE MODULE AND PROJECTOR HAVING SAME - A light-source module includes a casing, and a number of light-source units. The casing defines a number of receiving holes on the walls thereof corresponding to the light-source units. Each light-source unit is received in a corresponding receiving hole. Each light-source unit includes a light source, a converging lens disposed on the optical path of the light emitted from the light source, and a spacer spaced the light source and the converging lens. | 05-06-2010 |
20100110389 | Laser projection system - A laser projection system includes a plurality of laser light sources, a light combining module, an image generating module, a lens, a diffusion module. and a projection lens. The laser light sources are used to provide a plurality of light beams with different colors. The light combining module is disposed in the light path of the laser beams for mixing the laser beams to form a mixing light beam. The image generating module is disposed in the light path of the mixing light beam for receiving the mixing light beam to generate a first image. The lens is disposed in the light path of the first image and provides an imaging position. The first image passes through the lens to form a second image at the imaging position. The diffusion module includes a diffuser and an actuator. The projection lens projects the second image on a screen. | 05-06-2010 |
20100128225 | Gamma correction for adjustable light source - The present invention provides a projection apparatus comprising: a light source; a light source control unit for controlling output of the light source; at least one spatial light modulator for modulating illumination light from the light source by a plurality of pixel elements; and an optical system for projecting, to a screen, the illumination light deflected by the spatial light modulator, wherein: the light source control unit modulates output of the illumination light from the light source during a modulation period of the spatial light modulator, and non-linearly controls gray scale of a projected image projected to the screen. | 05-27-2010 |
20100128226 | PROJECTION APPARATUS, PROJECTION METHOD, AND PROGRAM FOR ADJUSTING CHROMATICITY - A projection apparatus includes a plurality of light sources individually emitting light in a plurality of colors, a projection section using light from the light sources to generate images corresponding to respective plural color components of the light source light for each period, to sequentially project the images, a measurement section measuring a brightness of the light sources for each of the plurality of colors, an average brightness calculation section calculating, at each image projection term for the same color component, an average brightness of the brightness measured by the measurement section at the image projection term, and a light source control section adjusting the brightness of the light sources so that an average chromaticity based on the average brightness calculated by the average brightness calculation section and indicating the brightness is equal or approximate to a target chromaticity. | 05-27-2010 |
20100141896 | WAVELENGTH CONVERTER AND GREEN LIGHT SOURCE AND PROJECTION APPARATUS USING THE SAME - A wavelength converter includes a supporting substrate and a ferroelectric substrate, the ferroelectric substrate includes at least one waveguide facing the supporting substrate and at least one wavelength-filtering pattern positioned between the waveguide and the supporting substrate, the waveguide includes a plurality of inverted domains and non-inverted domains configured to convert an infrared light into a green light, and the infrared light emitted from the semiconductor laser enters the waveguide of the wavelength converter. For example, the wavelength-filtering pattern includes a Bragg grating. | 06-10-2010 |
20100157252 | ILLUMINATION APPARATUS AND PROJECTOR - An illumination apparatus includes first and second light source units. An optical axis converting element has a first surface that reflects a luminous flux emitted from the first light source unit and a second surface that reflects a luminous flux emitted from the second light source unit and is configured to reflect respective luminous fluxes emitted from the respective light source units in substantially one direction. Each of the luminous fluxes entering the optical axis converting element has different dimensions in two directions orthogonal to each other in a plane orthogonal to an emission axis of the each light source unit. The optical axis converting element is arranged such that a cross-sectional shape of the luminous flux entering each optical axis converting element taken along the surface has a short side direction in the same direction as the direction of arrangement of the first and second surfaces. | 06-24-2010 |
20100165298 | ILLUMINATION APPARATUS AND IMAGE PROJECTION DISPLAY APPARATUS - An illumination apparatus and an image projection display apparatus are provided that are capable of stably obtaining a large amount of illumination light and capable of efficiently using the light emitted from light sources as illumination light. Provided are a plurality of light sources ( | 07-01-2010 |
20100165299 | PROJECTOR - A projector includes: a light source that emits light; a first lens array that divides the light emitted from the light source into a plurality of partial light beams; a second lens array that focuses the plurality of partial light beams emitted from the first lens array; condenser lenses that superimpose the plurality of partial light beams emitted from the second lens array on target illumination regions; and liquid crystal panels that modulate the light beams passing through the condenser lenses according to image information, wherein each of the condenser lenses is a single lens that achieves telecentric illumination when superimposing the partial light beams, and only the condenser lenses are arranged as lenses between the second lens array and the liquid crystal panels. | 07-01-2010 |
20100171931 | LINE ILLUMINATION APPARATUS USING LASER ARRAYS - An illumination apparatus forms, onto a linear array light modulator, a line of illumination that extends in a linear direction. The illumination apparatus has a first laser array with laser emitters for forming a first linear beam array and a second laser array with laser emitters for forming a second linear beam array. An array combiner aligns at least the first and second linear beam arrays in the linear direction and directs the first and second linear beam arrays along a propagation path to form a mixed illumination. At least first and second cylindrical lens elements having power in the linear direction relay the mixed illumination from the propagation path toward the linear array light modulator. At least third and fourth cylindrical lens elements having power in the cross-array direction that is orthogonal to the linear direction focus the mixed illumination onto the linear array light modulator. | 07-08-2010 |
20100171932 | LASER PROJECTION DEVICE AND METHOD FOR MANUFACTURING A LASER PROJECTION DEVICE - Laser projection device comprising an image generating unit, intermediate imaging optics configured to generate an intermediate image at an image focal plane ( | 07-08-2010 |
20100171933 | METHOD FOR COMPENSATING FOR COLOR LOSS OF IMAGE IN IMAGE PROJECTOR AND APPARATUS THEREOF - An apparatus is provided for compensating for color loss of an image in an image projector. A light source has Red (R), Green (G) and Blue (B) lamps. An optical image modulator receives R, G and B lights generated in the light source, receives an electrical image signal, modulates the lights according to the image signal, and outputs the lights so that an associated image is projected on a screen. A camera photographs an area on the screen where the image is projected. A lamp driving controller with a color-temperature table, in which optimal brightness setting values of the R, G and B lamps are stored for each screen color, checks brightness setting values of each of the lamps upon receipt of screen color information from the camera. A lamp driver drives each of the lamps in the light source according to control information from the lamp driving controller. | 07-08-2010 |
20100195058 | LASER SCANNING PROJECTION DEVICE - The present invention relates to a projection device comprising at least one laser light source ( | 08-05-2010 |
20100201954 | CONTENT REFLECTION DISPLAY SYSTEMS - The present invention describes content reflection systems for displaying a select portion of content to a viewer. An exemplary embodiment of the present invention provides a reflecting apparatus comprising a base and a reflective member in communication with the base. The reflective member includes a reflective layer enabled to receive at least a first frequency band of light and a second frequency band of light. Additionally, the reflective layer is enabled to reflect the first frequency band of light and transmit the second frequency band of light. Furthermore, the first frequency band of light includes a first content regarding an audiovisual presentation. | 08-12-2010 |
20100208212 | PROJECTOR AND METHOD OF CONTROLLING LIGHTING THEREOF - A projector includes: first and second lamps; a combining member configured to combine the light from the first and second lamps; a light modulation device arranged on the downstream side of an optical path of the combining member configured to provide higher modulation contrast with respect to the light emitted from the first lamp and entering in a state of being inclined in a first direction with respect to a system optical axis than modulation contrast with respect to the light emitted from the second lamp and entering in a state of being inclined in a second direction; and an illumination control device configured to turn ON the first lamp having the higher contrast with respect to the light modulation device on a priority basis for illumination of the light modulation device in a one-lamp mode in which only one of the first and second lamps is turned ON. | 08-19-2010 |
20100220298 | LIGHT SOURCE MODULE AND PROJECTOR USING SAME - The present disclosure provides a light source module including three light source units each comprising a light source and respectively emitting light of different color. At least one light source unit of the three light source units is a first light source unit. Each first light source unit further includes a rotatable light converter located on the light path of the light emitted from the light source The rotatable light converter is covered with fluorescent powder. The fluorescent powder is located on the light path of the light emitted from the light source, and configured for converting the emitted light from the light source into light of different color when the fluorescent powder is stimulated by the emitted light. The present disclosure also provides a digital light processing projector with the light source module. | 09-02-2010 |
20100225887 | PROJECTOR ADJUSTMENT METHOD, PROJECTOR, AND PROJECTOR ADJUSTMENT SYSTEM - A method for adjusting a projector that modulates a plurality of types of color light based on image information to project an image, includes: acquiring first captured image data by using a capturing device to capture a first projected image projected with an optical filter that removes predetermined spectral components not disposed in an optical path inside or outside the projector; acquiring second captured image data by using the capturing device to capture a second projected image projected with the optical filter disposed in the optical path; calculating an adjustment parameter for adjusting the projector based on the first and second captured image data; and adjusting the projector based on the adjustment parameter calculated in the adjustment parameter calculation. | 09-09-2010 |
20100231862 | PROJECTION TYPE DISPLAY DEVICE AND LIGHT SOURCE DEVICE - Miniaturization is realized and high-output lights are obtained by optimizing the arrangement of a laser light source unit and a homogenizer. | 09-16-2010 |
20100231863 | LIGHTING DEVICE, ARRAY OF LIGHTING DEVICES AND OPTICAL PROJECTION DEVICE - The invention relates to a lighting device ( | 09-16-2010 |
20100231864 | PROJECTION APPARATUS, PROJECTION METHOD AND PROGRAM - There is provided a projection apparatus including a plurality of light-emitting devices for respectively emitting lights of a plurality of colors, a projecting unit for forming an optical image of a plurality of color components for each frame and sequentially projecting the optical image, and a power control unit for adjusting power to be supplied to the plurality of light-emitting devices to correct a decrease in luminance due to heat generation of the plurality of light-emitting devices. | 09-16-2010 |
20100238411 | PROJECTION TYPE DISPLAY DEVICE - A projection-type display apparatus includes a light separating element that separates white light from an illumination optical system, first and second color separating elements that separate the separated white light beams into blue, green, and red light beams, three transmission-type liquid crystal light valves each for the right eye and for the left eye that modulate the color-separated light beams according to video signals, first and second color combining elements that each combine the blue, green, and red light beams that have been modulated, first and second wavelength-selective polarization rotating elements that respectively rotate the polarization direction of predetermined color lights from the first and second color combining elements so that the polarization directions of the color lights are aligned, a polarized light combining element that combines two polarized light beams that have polarization directions orthogonal to each other from the wavelength-selective polarization rotating elements, and a projection lens that magnifies and projects images respectively formed by the two combined polarized light beams. Using one projection-type display apparatus, it is possible to display stereoscopic video with little cross talk of images for the right eye and for the left eye, and no flicker, without needing high-speed response for the light valves. | 09-23-2010 |
20100238412 | LIGHT EMITTING DEVICE, LIGHT SOURCE UNIT AND PROJECTOR USING SAME LIGHT SOURCE UNIT - There are provided a light emitting device which can maintain a light emitting efficiency of a fluorescent material in an optimum condition, a light source unit made up of the light emitting device, and a projector which includes the light source unit. The light source unit is made up of the three light emitting devices which emit lights of different colors. The light emitting devices are each made up of a light source, a rotary member on which a fluorescent material layer is disposed which receives light to emit light of a predetermined color, a drive source for driving the rotary member, a rotational speed control device for variably controlling the rotary member so as to maintain the temperature of the rotary member to a predetermined value based on temperature information, and a temperature measuring device for measuring a temperature of the rotary member. | 09-23-2010 |
20100245773 | IMAGE DISPLAY APPARATUS - To provide an image display apparatus in which provision of a mechanical mechanism is not required for reducing an effect of a speckle noise that is generated when a coherent light is used as a light source and a noise can be suppressed. An image display apparatus ( | 09-30-2010 |
20100245774 | PROJECTION DISPLAY APPARATUS - A projection display apparatus includes a housing case housing a light source unit, a light valve, and a projection unit. The plurality of solid light sources are connected to a plurality of fibers, respectively. Light outputted from the plurality of fibers bundled by a bundle unit is guided to the light valve through a rod integrator. The rod integrator is arranged so that the a longitudinal direction of the rod integrator extends in a horizontal direction parallel to the projection surface. The light valve is arranged closer to a projection-side sidewall than the rod integrator. | 09-30-2010 |
20100245775 | MINIATURISED PROJECTION DEVICE USING AN LED ARRAY AND DICHROIC WEDGE - The present invention relates to an image projection device having a linear array of LED's in a common substrate, a common lens group to collimate light from each LED, and a single dichroic wedge having dichroic coatings for reflecting each light source to a condensing means which condenses the light to a distal surface. The image projection device therefore provides for a smaller optical package which is more easily accommodated in mobile devices such as mobile telephones, and which is simple and cheap to manufacture. | 09-30-2010 |
20100253921 | LIGHT MODULATION ELEMENT POSITIONING METHOD FOR PROJECTOR, AND PROJECTOR - A method for positioning a light modulation element of a projector comprising: providing the projector including a first light modulation element unit having a first through a three light modulation elements, a second light modulation element unit having a fourth through a sixth light modulation elements, and a combining system for combining first image light supplied from the first light modulation element unit and second image light supplied from the second light modulation element unit and supplying combined light, positioning first light modulation element unit and second light modulation element unit such that color of combined light of color lights obtained from the first light modulation element, the second light modulation element, and the sixth light modulation element and combined by the combining system becomes a predetermined color. | 10-07-2010 |
20100259728 | OPTICAL COMBINER AND IMAGE PROJECTOR USING THE OPTICAL COMBINER - An optical combiner in which fewer parts are used comprises an optical component and a plastic body. The component comprises: a first filter reflecting first light having a first wavelength and being transparent to second light having a second wavelength and third light having a third wavelength; a second filter reflecting second light and being transparent to third light; and a base transparent to second light and third light. The first filter and the second filter are provided on opposed surfaces of the base. The plastic body has first, second, and third surfaces, and the first surface provides first, second, and third lenses. The component is provided in the plastic body such that light from the first lens is connected to a path to the second surface through the first filter and light from the second lens is connected to the path through the second filter. The third surface is a reflecting surface for connecting light from the third lens to the path. | 10-14-2010 |
20100259729 | OPTICAL COMBINER AND IMAGE PROJECTOR USING THE OPTICAL COMBINER - An optical combiner in which the number of parts used is lessened is made of a resin. The optical component comprises a first surface, a diffraction grating, and a second surface. The first surface is a surface providing first, second, and third lenses. The diffraction grating diffracts to a common optical path leading to the second surface light of the first wavelength incident on the first lens, light of the second wavelength incident on the second lens, and light of the third wavelength incident on the third lens. The second surface emits light incident thereon through the common optical path. The optical path from the first surface to the diffraction grating and the common optical path are constituted of the resin. | 10-14-2010 |
20100277697 | Color Splitting Method For Light Sources - A system comprises two or more light sources comprising a first light source and a second light source, each light source of the two or more light sources configured to provide light of a particular wavelength, wherein a first wavelength of a first light provided by the first light source differs from a second wavelength of a second light provided by the second light source, and wherein the first light has a first radiant energy that experiences roll-off. The system further comprises a controller configured to modulate an attribute of each light source to compensate for the roll-off, the modulation comprising modulating an attribute of the first light source, and the modulation further comprising modulating an attribute of the second light source, the modulation of the second attribute being different from the modulation of the first attribute. | 11-04-2010 |
20100290009 | IMAGE PROJECTOR EMPLOYING A SPECKLE-REDUCING LASER SOURCE - An image projector having one or more broadband lasers designed to reduce the appearance of speckle in the projected image via wavelength diversification. In one embodiment, a broadband laser has an active optical element and a nonlinear optical element, both located inside a laser cavity. The broadband laser generates an output spectrum characterized by a spectral spread of about 10 nm and having a plurality of spectral lines corresponding to different spatial modes of the cavity. Different individual spectral lines effectively produce independent speckle configurations, which become intensity-superimposed in the projected image, thereby causing a corresponding speckle-contrast reduction. | 11-18-2010 |
20100296061 | PROJECTION WITH CURVED SPECKLE REDUCTION ELEMENT SURFACE - In a coherent light projection system including an image forming system, a relay system, a speckle reduction element, and a projection subsystem, the relay system can have a first f-number, and the projection subsystem can have a second f-number less than the first f-number. The relay system can have a first working distance, and the projection subsystem can have a second working distance less than the first working distance. The image forming system can project an initial image having a first size, and an intermediate image can have a second size greater than or equal to the first size. The speckle reduction element can have a curved surface through which the intermediate image is transferred. The speckle reduction element can include a lenslet arrangement formed on a surface thereof. The speckle reduction element can be moved in a direction parallel to an optical axis of the speckle reduction element. | 11-25-2010 |
20100296062 | PROJECTION DISPLAY DEVICE - The invention discloses a projection display device. The projection display device includes a light module, a director, an image generator, and an image projection lens set. The light module emits a light along a first light path. The director directs the light toward a second light path. The image generator directs the light directed by the director toward a third light path, wherein a reference surface is defined to cross where the second light path crosses the image generator and to be substantially vertical to the image generator. Particularly, the light module, the director, the image generator, and the image projection lens set are substantially disposed at a side of the reference surface. | 11-25-2010 |
20100302511 | PROJECTION DISPLAY DEVICE - A projection display device ( | 12-02-2010 |
20100302512 | ILLUMINATION APPARATUS AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS - An illumination apparatus includes: a red light valve configured to modulate red component light according to a red input signal; a green light valve configured to modulate green component light according to a green input signal; a blue light valve configured to modulate blue component light according to a blue input signal; a fourth color light valve configured to modulate a fourth color component light; and a color combiner configured to combine light emitted from the red light valve, the green light valve and the blue light valve. The fourth color component light emitted from the fourth to color light valve enters a certain light valve, which is any one of the red light valve, the green light valve and the blue light valve. | 12-02-2010 |
20100309438 | WAVELENGTH CONVERSION LASER - A wavelength conversion laser | 12-09-2010 |
20100321640 | PROJECTION DISPLAY CHIP - A projection display chip comprises a micro light emitting array comprising a plurality of micro LEDs, a micro collimation array comprising a plurality of micro collimation devices, and a projection micro lens array comprising a plurality of micro lenses. Each micro LED has a corresponding driving circuit device. The plurality of micro lenses has different optical axes to enlarge projected images. | 12-23-2010 |
20100321641 | LIGHT MODULE DEVICE - This invention relates to illumination systems for projection type display systems, and more particularly to a light module device comprising a light source, which emits light of a first color, and a pixelated optical element, which is arranged to receive the emitted light. The pixelated optical element comprises a first set of pixels for color converting a fraction of the emitted light of the first color into a second color, a second set of pixels for color converting a fraction of the emitted light of the first color to a third color, and a third set of pixels which are non-converting for passing a fraction of the emitted light. The device further comprises an addressable pixelated optical shutter arranged in front of the pixelated optical element for modulating light received from the pixelated optical element and as a result outputs light from said device, which output light comprises light of three colors which are modulated by the addressable pixelated optical shutter. | 12-23-2010 |
20100328616 | HIERARCHICAL LIGHT INTENSITY CONTROL IN LIGHT PROJECTOR - In a light projection system, potentially hierarchical levels of light intensity control ensure proper laser-light output intensity, color channel intensity, white point, left/right image intensity balancing, or combinations thereof The light projection system can include a light intensity sensor in an image path, in a light-source subsystem light-dump path, in a light-modulation subsystem light-dump path, in a position to measure light leaked from optical components, or combinations thereof. | 12-30-2010 |
20100328617 | FLUORESCENT WHEEL, LIGHT SOURCE DEVICE AND PROJECTOR - A fluorescent wheel comprising a base with a reflective surface and a flat bottom surface, and a fluorescent layer disposed on the reflective surface of the base such that the reflective surface of the base directs, outward from the wheel, fluorescence emitted from the fluorescent layer due to its excitation by exciting light. The reflective surface of the base has an array of minute reflective structures formed thereon so as to reflect, outward from the reflective surface, fluorescence emitted substantially parallel to the flat bottom surface of the base from the fluorescent layer. | 12-30-2010 |
20110019156 | PROJECTION SYSTEM AND METHOD THEREOF - A projection system and a method thereof are provided. The projection method includes the following steps. First, a processing module of an electronic device acquires a process ID of an application program via an operating system of the electronic device. Next, the processing module extracts display data corresponding to a window of the application program from a frame buffer of the electronic device stepwise with a predetermined frequency. Next, the processing module produces a plurality of pictures based on the extracted display data with the predetermined frequency. Next, the processing module transmits the pictures to a projector according to a predetermined transmission protocol. Finally, the projector projects the pictures sequentially. | 01-27-2011 |
20110043764 | LIGHT SOURCE DEVICE, PROJECTION APPARATUS, PROJECTION METHOD, AND STORAGE MEDIUM - A first light source control section controls the drive timing of each of the first and second light sources, and light-source light generation section such that the light-source light generated from each of the light-source light generation section and second light source is cyclically generated. A detection section detects the light intensity of the light-source light generated from each of the light-source light generation section and second light source. A storage section stores therein the light intensity value of the light-source light generated from each of the light-source light generation section and second light source detected by the detection section. A second light source control section adjusts the light emission state of each of the first and second light sources on the basis of the detection results of the detection section with respect to the light-source light intensity values stored in the storage section. | 02-24-2011 |
20110043765 | LIGHT SOURCE DEVICE, PROJECTION APPARATUS, AND PROJECTION METHOD - There is provided a light source device including a first light source configured to emit light in a first wavelength band, a light-source light generation section configured to generate light of each of a plurality of colors by time division by using the first light source, a second light source configured to generate light of a second wavelength band different from the first wavelength band, and a light source control section configured to cause each of the light-source light generation section and the second light source to generate light in one period, and to control a drive timing of each of the first and second light sources to adjust a light-emission timing and a light-emission period of light generated by each of the light-source light generation section and the second light source. | 02-24-2011 |
20110051094 | Camera-Based Registration for Projector Display Systems - A method having corresponding apparatus and computer-readable media comprises: receiving a first image, wherein the first image includes a plurality of substantially parallel first stripes, wherein the first image conforms to a virtual display space, wherein the virtual display space comprises a first plurality of first pixel locations; projecting the first image from a projector onto a surface, wherein the projector is described by a projector space comprising a second plurality of second pixel locations; capturing a second image of the first image projected onto the surface, wherein the second image conforms to the virtual display space; detecting edges of the first stripes based on the second image; generating second stripes based upon the edges of the first stripes; and determining a correspondence between each second pixel location and one or more of the first pixel locations based upon the second stripes. | 03-03-2011 |
20110051095 | PROJECTOR - A projector includes: a first solid-state light source device which includes a first solid-state light source emitting main excitation light, and a fluorescent layer converting main excitation light emitted from the first solid-state light source to light including a first color light component and a second color light component different from the first color light component, and emitting converted light; a second solid-state light source device which includes a second solid-state light source emitting a third color light component different from the first color light component and the second color light component; a light modulation device modulating the first color light component, the second color light component, and the third color light component in accordance with image information; a projection optical system projecting the modulated light components from the light modulation device as a projection image; and a color light combining optical system combining light emitted from the first solid-state light source device and the third color light component emitted from the second solid-state light source device. | 03-03-2011 |
20110051096 | PROJECTOR - A projector includes: at least one light emitting device having a light emitting element adapted to emit a first outgoing light and a second outgoing light proceeding in a direction different from a direction of the first outgoing light; a first light modulation device adapted to modulate the first outgoing light in accordance with image information; a second light modulation device adapted to modulate the second outgoing light in accordance with image information; and a projection device adapted to project the light modulated by the first light modulation device and the light modulated by the second light modulation device, wherein the light emitting element is a super luminescent diode provided with a stacked structure having an active layer sandwiched between a first cladding layer and a second cladding layer, and the active layer has a first emission surface adapted to emit the first outgoing light and a second emission surface adapted to emit the second outgoing light. | 03-03-2011 |
20110063581 | LIGHT SOURCE UNIT AND PROJECTOR - To provide a light source unit which can enhance luminance and a projector, a projector of the invention includes a light source unit comprising a luminescent wheel with luminescent light emitting portions to emit blue and green rays, a primary light source shining an excitation light to the luminescent light emitting portions, a secondary light source emitting a red ray, a light guiding optical system guiding the rays from the luminescent wheel and the ray from the secondary light source to the same optical path and a light source control means controlling the emissions from the respective light sources, wherein the light source control means turns on the secondary light source when the ray from the primary light source is shone onto a boundary between the luminescent light emitting portions to synthesize the rays from the luminescent wheel and the ray from the secondary light source to generate white ray. | 03-17-2011 |
20110075103 | LIGHT SOURCE UNIT, PROJECTION APPARATUS, AND PROJECTION METHOD - A light source controller is configured to control timings of driving the first and second light sources and the light-source light generator, so that the light-source light of two or more colors generated by the light-source light generator and the light-source light emitted from the second light source are cyclically generated, by setting a light-emitting period of at least one light-source light color having a higher luminous efficiency out of the two or more colors generated by the light-source light generator, shorter than those of the other light-source light colors, and setting a drive power of the first light source during generation of the light-source light color whose light-emitting period is set short, greater than a drive power of the first light source during generation of the other light-source light colors. | 03-31-2011 |
20110075104 | RETINAL SCANNING DISPLAY - A retinal scanning display includes: a light source part which radiates a laser beam; a scanning part which scans the radiated laser beam in two dimensional directions; a projection part which projects the scanned laser beam on a retina of a viewer; a light detection part which is arranged at a position on which the scanned laser beam is incident; and a light blocking part which blocks the scanned laser beam scanned at the timing detection time; and a control part which controls the radiation of the laser beam based on the detected timing of the laser beam by the light detection part. The control part allows the light source part to radiate the laser beam at the timing detection time with intensity which exceeds a maximum value of intensity of the laser beam radiated from the light source part at the image forming time. | 03-31-2011 |
20110075105 | MULTIPLEXING LIGHT PIPE HAVING ENHANCED BRIGHTNESS - Multi-color light sources are mixed in a recycling housing to achieve high light output. In one embodiment, the light from each color light source, such as from red, green and blue LEDs, is multiplexed together and a portion of the mixed light passes through an output aperture in the light pipe. A portion of each colored light is recycled back, for example, by a shaped reflective surface and/or a reflective coating adjacent the aperture. The shape of the reflective surface is such as to direct each color of light back to a specific location to maximize the ultimate output light. In one embodiment, the light is directed back from the output side of the housing to an input light source having the same color. In another embodiment, the light is directed back from the output side of the housing to a coating designed to reflect that color light. The reflected light is then reflected back toward the output aperture and a portion of that reflected light is again reflected toward the input and impacts the original source for that color light. In this way, the light (at least in theory) recycles infinitely, thereby increasing the total light output of the housing. In some embodiments, the light is recycled using polarization and in some embodiments the input light is collimated. | 03-31-2011 |
20110075106 | LIGHT SOURCE DEVICE, PROJECTION APPARATUS INCLUDING THE LIGHT SOURCE DEVICE, AND PROJECTION METHOD - A light source device includes: a light source section which comprises plural laser diodes; a pulse driving section which divides the laser diodes of the light source section into plural groups, each group having the same number of the laser diodes, and drives the laser diodes of the each group by a pulse having a predetermined period and a predetermined duty ratio; and a light source driving section which controls a phase of the pulse for the each group so that the same number of the laser diodes are emitted in succession when the laser diodes of the each group are driven by the pulse driving section. | 03-31-2011 |
20110075107 | ILLUMINATION ARRANGEMENT FOR A PROJECTION SYSTEM - An illumination arrangement for a projection system is proposed including a light source device and a light collecting, integrating and redirecting device. The light source device comprises at least one solid state light source device. The light collecting, integrating and redirecting device comprises at least one light integrating device, which is adapted to directly receive and to integrate at least a part of primary illumination light generated by and emitted from at least one associated of at least one sold state light source device. | 03-31-2011 |
20110085143 | PROJECTOR - A projector includes: a light source that emits light having an asymmetric illuminance distribution; a light modulation device that modulates the light emitted from the light source; and an optical member disposed in an optical path between the light source and the light modulation device, the optical member changing the illuminance distribution of the light from the light source, wherein the optical member changes the illuminance distribution of the light passing therethrough in such a way that a highest illuminance area in the illuminance distribution of the light after passing through the optical member is shifted toward the center of the optical member as compared with the position of the highest illuminance area in the illuminance distribution of the light before incident on the optical member. | 04-14-2011 |
20110085144 | Projector for Minute Projection Surfaces and Use of a Multi-Color LED in a Projector - A multicolour LED, in which layers for generating light of different colours are arranged one above the other, is used as the light source in a projector. | 04-14-2011 |
20110090463 | PROJECTION APPARATUS - A projection apparatus includes at least one light source, a field lens, a light valve, and a projection lens. The light source provides an illumination beam. The field lens is disposed in a transmission path of the illumination beam including an effective beam passing through the field lens and a ghost beam reflected by the field lens. The light valve converts the effective beam into an image beam. The projection lens includes a lens group, an aperture stop, and a light-shielding element. The lens group and the aperture stop are disposed in a transmission path of the image beam passing through the field lens and a ghost beam path of the ghost beam reflected by the field lens. The light-shielding element is disposed in at least a portion of the ghost beam path between the lens of the lens group furthest away from the aperture stop and the aperture stop. | 04-21-2011 |
20110090464 | PROJECTION APPARATUS - A projection apparatus includes at least one light source, a field lens, a light valve, and a projection lens. The light source provides an illumination beam. The field lens is disposed in a transmission path of the illumination beam including an effective beam passing through the field lens and a ghost beam reflected by the field lens. The effective beam forms a light spot on the light valve capable of converting the effective beam into an image beam. The projection lens is disposed in a transmission path of the image beam and a ghost beam path of the ghost beam. A center of the light spot does not overlap a center of the light valve. An offset direction from the light valve to an optical axis of the projection lens is the same as a direction from the center of the light valve to the center of the light spot. | 04-21-2011 |
20110090465 | IMAGE DISPLAY APPARATUS - An image display apparatus includes: a light source system that emits light having a first wavelength and a second wavelength switched with time; a light modulator that modulates the light having the first wavelength and the second wavelength emitted from the light source system; an optical path adjustment system that shifts the optical paths of the light having the first wavelength and the second wavelength modulated by the light modulator from each other; and the optical path adjustment system, wherein the optical path adjustment system includes a wavelength selecting surface that reflects the light having the first wavelength and transmits the light having the second wavelength, and mirror system disposed in such a way that the optical paths of the light having the first wavelength and the second wavelength having traveled via the wavelength selecting surface are shifted from each other. | 04-21-2011 |
20110090466 | Filter-Free Projector - A filter-free projector includes a light source unit to generate light beam with different color and a color control module couple to the light source unit for switching the light source unit to emit one color light at a time. A digital mirror device panel having a plurality of mirror elements is provided so as to reflect light fed from the light source unit. Projection lens is positioned in the reflected light path from the digital mirror device panel to project image. | 04-21-2011 |
20110090467 | Image Projection Arrangement with Divergent Light Beams - A lightweight, compact image projection module has a laser package having a common exit port, and a plurality of lasers mounted in the package and operative for emitting a plurality of laser beams of different wavelengths through the common exit port. An optical assembly focuses the laser beams exiting the common exit port, and includes a common focusing lens through which the laser beams pass along respective paths that are in angular misalignment. An optical corrector element in at least one of the paths corrects the misalignment to produce aligned beams. A scanner sweeps the aligned beams in a pattern of scan lines, each scan line having a number of pixels. A controller causes selected pixels to be illuminated, and rendered visible, by the aligned beams to produce the image. | 04-21-2011 |
20110096296 | LIGHT SOURCE UNIT AND PROJECTOR - To provide a light source unit enabling a stable projection without a luminescent material heating and a projector, a projector of the invention including a light source unit, a display device, a light guiding optical system, a projection side optical system and a light source control device. The light source unit includes an excitation light shining device, a luminescent wheel emitting a luminescent ray of a green wavelength band and a light source optical system collecting rays from the luminescent wheel and respective light sources on a predetermined plane. The light source control device controls the excitation light shining device, each light source device of red and blue so that a period of time required for turning-on once of the excitation light shining device, and each light source device of red and blue becomes a non-integral multiple of a period of time required for one rotation of the luminescent wheel. | 04-28-2011 |
20110096297 | LIGHT SOURCE UNIT AND PROJECTOR - There is provided a light source unit comprising an excitation light shining device for emitting excitation light, a luminescent plate having a luminescent light emitting area on a base material and adapted to emit a luminescent light of a predetermined wavelength band by excitation light from the excitation shining device, two types of light source devices for emitting light of wavelength bands different from that of the light from the luminescent plate, a light guiding optical system for guiding the light from the luminescent plate and the rays from the light sources to a predetermined plane, and a light source control device for controlling the emission from the excitation light shining device and the light sources, wherein a synthetic light or a single-color light are emitted by controlling the emissions from the excitation light shining device and the light sources by the light source control device. | 04-28-2011 |
20110102747 | LASER SCANNING DISPLAY AND BEAM ALIGNMENT METHOD THEREOF - A laser scanning display including a micro scanning mirror, and a beam alignment method thereof are disclosed. A scanning display includes a frame, at least one light source fixedly secured to the frame, a lens positioned in front of a light emission surface of the light source, the lens having a holder detachably mounted to an external adjusting device which is to make fine adjustment to finish beam alignment, and a fastening portion for fastening the lens having beam alignment finished thus to the frame. | 05-05-2011 |
20110116050 | PROJECTOR AND METHOD OF CONTROLLING THE SAME - The present invention is applied to a projector that comprises a plurality of projection devices which generate images by modulating laser beams in the colors of R, G, B with optical modulators and which project the images onto projection surfaces through projection lenses, wherein the images projected respectively from said projection devices onto said projection surfaces are tiled into a single image as a whole. In the projector of the present invention, the number of G-color laser beam sources is smaller than the number of images projected respectively from said projection devices onto said projection surfaces; and said projection devices share said G-color laser beam sources and apply G-color laser beams emitted from said G-color laser beam sources to said optical modulators thereof. | 05-19-2011 |
20110116051 | PROJECTION DEVICE FOR ARCHITECTURAL AND ENTERTAINMENT LIGHTING - A projection device embodiment comprises a light source system, a gate with a cross sectional gate area, and projection optics. The light source system includes a solid-state light source configured to provide light, and light source optics. The light source optics are configured to distribute light from the solid-state light source across the gate area of the gate. The gate is configured to be used to produce an object to be imaged by the projection device. The projection optics is configured to project an image of the object. | 05-19-2011 |
20110122372 | LASER BEAM SOURCE DEVICE, PROJECTOR, AND MONITORING DEVICE - A laser beam source device includes: a first light emission element and a second light emission element each of which has a light emission portion for emitting a laser beam having a fundamental wavelength, wherein the first light emission element and the second light emission element are disposed such that light emitted from the light emission portion of each of the first light emission element and the second light emission element can enter the light emission portion of the other light emission element, at least either the first light emission element or the second light emission element has the plural light emission portions, and the areas of the plural light emission portions are not uniform. | 05-26-2011 |
20110128504 | ADJUSTMENT DEVICE AND PROJECTOR HAVING THE SAME - An adjustment device for adjusting an angle of a dichroic mirror of a projector with respect to an optical engine base of the projector is disclosed. The dichroic mirror is pivotably mounted to the optical engine base. The adjustment device includes a link and an eccentric screw. The link has a first end and a second end. The first end is adapted to be fixedly mounted to the dichroic mirror. The second end has an opening. The eccentric screw is adapted to extend through the opening to be screwed to the optical engine base. The eccentric screw includes an eccentric section disposed within the opening. The eccentric section pushes the link such that the link drives the dichroic mirror to pivot with respect to the optical engine base upon rotating of the eccentric screw. A projector including the adjustment device is also disclosed. | 06-02-2011 |
20110128505 | LASER BEAM SOURCE DEVICE, LASER BEAM SOURCE DEVICE MANUFACTURING METHOD, PROJECTOR, AND MONITORING DEVICE - A laser beam source device includes: a first light emission element; a second light emission element; and first and second dividing units, wherein the first light emission portion of the first light emission element and the first light emission portion of the second light emission element, having a first clearance, are disposed such that the laser beam emitted from each of the light emission portions can enter the other light emission portion, the second light emission portion of the first light emission element and the second light emission portion of the second light emission element, having a second clearance, are disposed such that the laser beam emitted from each of the light emission portions enters the other light emission portion, and the first clearance is longer than the second clearance. | 06-02-2011 |
20110128506 | LASER BEAM SOURCE DEVICE, PROJECTOR, AND MONITORING DEVICE - A laser beam source device includes: a first light emission element which has a light emission portion for emitting a laser beam; a second light emission element which has a light emission portion for emitting a laser beam; a control member which has a flat surface on which the first light emission element is disposed and a curved surface having a convexed part; and a holding member which has a concaved portion formed in correspondence with the curved surface for engagement between the concaved portion and the control member, wherein the first light emission element and the second light emission element are disposed such that light emitted from the light emission portion of each of the first and second light emission elements enter the light emission portion of the other light emission element. | 06-02-2011 |
20110128507 | LIGHT SOURCE DEVICE, PROJECTION APPARATUS, AND PROJECTION METHOD - A plurality of semiconductor light-emitting elements separately emits light of each of a plurality of colors. A reference signal output section outputs a reference signal for each of the plurality of colors. A selection section selects a reference signal for each of the plurality of colors output from the reference signal output section in accordance with a light-emission timing of each of the plurality of semiconductor light-emitting elements. An operation control section, provided for each of the plurality of semiconductor light-emitting elements, holds an operation value fitted to a light-emitting characteristic of a corresponding semiconductor light-emitting element and converts the reference signal selected by the selection section by an operation. A drive section drives corresponding one of the plurality of semiconductor light-emitting elements on the basis of a signal which has converted by the operation control section. | 06-02-2011 |
20110134395 | PROJECTION DISPLAY SYSTEM - An enclosure of a dichroic mirror system that synthesizes a plurality of monochromatic laser beams emitted from a laser light source to output synthesized light is a structure having a dichroic mirror system lower enclosure and a dichroic mirror system upper enclosure joined to each other, and includes a light-leakage protecting structure that is formed by a convex portion formed at an end of the dichroic mirror system lower enclosure and a concave portion formed at an end of the dichroic mirror system upper enclosure engaged with each other at a joint therebetween. | 06-09-2011 |
20110134396 | LIGHT EMITTING DEVICE AND PROJECTOR - A light emitting device includes: a first light emission element which emits a first light; a second light emission element which emits a second light; a first reflection surface which reflects the first light; and a second reflection surface which reflects the second light, wherein the first light emission element and the second light emission element are laminated in a first direction and disposed in such positions that the emission direction of the first light and the emission direction of the second light become parallel with each other and that the first light emission element and the second light emission element do not overlap with each other as viewed in the first direction, and the traveling direction of the first light reflected by the first reflection surface and the traveling direction of the second light reflected by the second reflection surface become parallel with each other. | 06-09-2011 |
20110141439 | IMAGE DISPLAY DEVICE - An image display device includes: at least one illumination system adapted to emit a light beam; at least one light modulation element adapted to modulate the light beam emitted from the illumination system; and a projection optical system adapted to project the light beam modulated by the light modulation element, wherein a proceeding direction of a principal ray of the light beam modulated by the light modulation element is nonparallel to an optical axis of the projection optical system when the light beam modulated by the light modulation element enters the projection optical system. | 06-16-2011 |
20110157558 | BEAM SPLITTING APPARATUS - A beam splitting apparatus applicable for a projecting system is provided. The beam splitting apparatus comprises a shaft, a plurality of dichroic mirrors and a housing. The shaft and the dichroic mirrors are surrounded and sealed by the housing. The outer surface of the shaft is screw-surrounded by the dichroic mirrors. The dichroic mirrors rotate with the shaft and split an incident light into a plurality of primary color light beams, and scroll the position of the primary color light beams circularly. The beam splitting apparatus can reduce the noise and the energy loss, and raise the display frames rate to increase the display quality. | 06-30-2011 |
20110164222 | IMAGE LIGHTING SYSTEM WITH AN ART SENSE - This invention relates to the image lighting system which can successively display the various kinds of images by the electronic circuit and generate the images by the image projector. This system has the characteristic comprising the plurality of LED, the electronic circuit part, the light-emitting part, the image projector, and the light fixture part. | 07-07-2011 |
20110164223 | MICROMINIATURIZED PROJECTION MODULE FOR PROJECTING IMAGE ONTO OBJECT - A microminiaturized projection module for projecting an image onto an object is disclosed in the present invention. The module includes a number of light units each for providing red, green, and blue beams; an image processing unit for receiving the image, dividing the image into n×m image signals, and transforming each of the image signals into a modulating signal and a direction signal, where n and in are integrals not less than 2, respectively; a number of modulation units for modulating the beams from one light unit according to the modulating signal received from the image processing unit and sending out the modulated beams simultaneously; and an array of n×m mirrors for projecting the modulated beams to form the image onto the object according to the direction signal received from the image processing unit. The invention has advantages that can reduce modulation speed, undergo slight shock and be free from raster pinch effect. | 07-07-2011 |
20110164224 | VIDEO PROJECTOR - A video projector including a light source lamp and an optical component having a light transmission plane. A cooling system sends cooling air in parallel currents to the light transmission surface over a predetermined period after the light source lamp goes off to perform auto-cooling on the optical component. A shutter unit includes a planar shutter door that has a planar portion extending parallel to a direction the cooling air flows. The shutter door is moved parallel to the flow direction of the cooling air to open and close an optical path of the optical component. The shutter unit includes a current deflector formed integrally with the shutter door to deflect the flow of the cooling air toward the light transmission surface, and the current deflector directs the cooling air against the light transmission surface of the optical component during the auto-cooling. | 07-07-2011 |
20110164225 | Arrangement for and method of projecting an image with linear scan lines - A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for sweeping a composite laser beam as a pattern of linear scan lines on a planar projection surface and for causing selected pixels arranged along each linear scan line to be illuminated to produce an image of high quality and in color. | 07-07-2011 |
20110170070 | LIGHT-MIXING MODULE AND OPTICAL PROJECTION SYSTEM - A light-mixing module includes a first plate, a second plate, a first dichroic mirror, a second dichroic mirror, and a third dichroic mirror. The first dichroic mirror is disposed between the first plate and the second plate and is substantially perpendicular to the first plate and the second plate. The second dichroic mirror is disposed on a first side of the first dichroic mirror. The second dichroic mirror forms an angle with the first dichroic mirror and is substantially perpendicular to the first plate and the second plate. The third dichroic mirror is disposed on a second side of the first dichroic mirror and is substantially perpendicular to the first plate and the second plate. The third dichroic mirror is substantially parallel with the second dichroic mirror. The second dichroic mirror and the third dichroic mirror together form a fourth dichroic mirror, and at least one of the first dichroic mirror and the fourth dichroic mirror has a bevel gradient dichroic film. | 07-14-2011 |
20110170071 | Laser display device - Provided is a laser display device. The laser display device may include at least one light source configured to emit at least one laser beam, at least one scanning unit configured to perform a scanning with the at least one laser beam, and an image forming unit configured to generate excitation light and scattering light by receiving the at least one laser beam from the scanning unit to form an image. | 07-14-2011 |
20110176115 | Projector - Provided is a projector which includes a first lamp, a second lamp in an identical direction to the first lamp, a projection optical system that emits image light to an outside, a first mirror that reflects the light from the first lamp or the second lamp to cause the light to enter the lighting optical system, a movable mirror that, when the first lamp is turned on, causes the light to directly enter the first mirror by deviating from an optical path connecting the first lamp and the first mirror and, when the second lamp is turned on, reflects the light by being set up on the optical path to cause the light to enter the first mirror, and a second mirror that reflects the light from the second lamp to cause the light to enter the movable mirror. | 07-21-2011 |
20110176116 | LED PROJECTOR - An LED projector includes a plurality of light sources; and an image generator which includes an arrangement of pixels, each pixel including at least one light source; wherein the LEDs are stacked epi-LEDs which include layers arranged above one another for different colors, or each pixel includes an emission surface and at least two LEDs are arranged adjacent one another in the emission surface. | 07-21-2011 |
20110181840 | MULTI-PROJECTOR SYSTEM USING MULTIPLEXED ILLUMINATION - An apparatus for forming a color image has at least a first, a second, and a third illumination source, each illumination source energizable to provide continuous illumination of a first, a second, or a third wavelength band, respectively, to an optical multiplexer. The optical multiplexer is actuable to cyclically switch received light from each one of the illumination sources, in turn, to each one of at least a first, a second, and a third projector channel in a repeated sequence. The first projector channel connects to a first projector apparatus, the second projector channel connects to a second projector apparatus, and the third projector channel connects to a third projector apparatus. Each projector apparatus has a light modulator that is energizable to form an image from the light of the first, second, or third wavelength band that is cyclically switched onto its projector channel from the optical multiplexer. | 07-28-2011 |
20110181841 | AUTOFOCUS IMAGE PROJECTION APPARATUS - The image projection apparatus includes a color separation/combination unit separating light into color lights to introduce them to light modulation elements and combining the lights modulated by the light modulation elements, a projection optical system projecting projection light that is the combined color lights onto a projection surface, an image-pickup element capturing a projected image, and a controller performing AF by using an output from the image-pickup element. The color separation/combination unit includes an optical film surface reflecting or transmitting at least one of the color lights and a non-effective surface. The image-pickup element is disposed so as to face the non-effective surface and captures the projected image using detection light of the projection light, which is reflected at the projection surface to enter the color separation/combination unit through the projection optical system and is transmitted through or reflected at the film surface to exit through the non-effective surface. | 07-28-2011 |
20110188000 | MULTIPLEXING DEVICE FOR IMAGE DISPLAY AND RETINAL SCANNING DISPLAY PROVIDED WITH MULTIPLEXING DEVICE - A multiplexing device for an image display includes: a light source part which has light source modules which irradiate laser beams having different wavelengths; a multiplexing part which multiplexes laser beams irradiated from the respective light source modules; optical fiber parts, each optical fiber part including a light-source-side optical fiber which has one end portion thereof connected to the light source module and a multiplexing-side optical fiber which has one end portion thereof connected to the multiplexing part; and a plurality of connecting parts, each connecting part connecting the light-source-side optical fiber and the multiplexing-side optical fiber with each other. The connecting part can change a distance between the other end portion of the light-source-side optical fiber and the other end portion of the multiplexing-side optical fiber which face with each other. | 08-04-2011 |
20110199580 | SOLID-STATE LIGHT SOURCE DEVICE - A solid-state light source device, enabling to build up with using solid-state elements, and having the structure suitable to be applied as a light source for a projection-type display apparatus, comprises a solid-state light source unit | 08-18-2011 |
20110199581 | OPTICAL PROJECTION SYSTEM AND METHOD FOR REDUCING UNESSENTIAL BEAMS FORMED THEREIN - An optical projection system includes a light source module, a field lens, a fly-eye lens, a light valve and a projection lens. The field lens is disposed on a propagation path of a light beam, where the light beam emitted from the light source module comprises a transmission light beam passing through the field lens and a reflection light beam reflected by the field lens. The fly-eye lens is disposed on the propagation path of the light beam and between the light source module and the field lens to homogenize the light beam, where the fly-eye lens includes a plurality of lens elements arranged in an array, the reflection light beam passes through the lens element via a transmissive region of the lens element, and at least one of an opaque structure, a light-diffusing structure and a light-deflecting structure is formed on the transmissive region. | 08-18-2011 |
20110199582 | Light Source Unit, Optical Scanning Display, and Retinal Scanning Display - A light source unit includes an optical coupler, light sources, a light output portion, a light sensor, and a controller. The optical coupler is formed by joining intermediate portions of plural optical fibers together and multiplexes lights, which have entered respective one ends of the optical fibers, in a coupling region where the intermediate portions of the optical fibers are joined together. The light sources emit light of different wavelengths that enter the respective one ends of the plural optical fibers. The light output portion is formed by the other end of one of the plural optical fibers and outputs the multiplexed lights. The light sensor detects light emerging from the other end of at least another one of the plural optical fibers. | 08-18-2011 |
20110205498 | Laser Projection White Balance Tracking - The radiance of a laser diode is a function of laser diode drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded radiance, and also includes photodetectors to provide a measured radiance. The commanded radiance and measured radiance are compared, and drive currents for the laser diodes are adjusted to provide luminance and color balance tracking. | 08-25-2011 |
20110211167 | System and Method for Utilizing a Scanning Beam to Display an Image - A method includes generating a plurality of beams that each illuminate a separate portion of a spatial light modulator. The spatial light modulator has a first dimension of a first length and a second dimension of a second length. Each of the beams spans a portion of the first length of the first dimension and a portion of the second length of the second dimension. The method also includes scrolling the plurality of beams along the second dimension of the spatial light modulator while maintaining at least a first gap between each of the plurality of beams. | 09-01-2011 |
20110211168 | PROJECTION SYSTEM - In order to obtain effects of the increase in brightness of images, miniaturization, low cost, convenience of handling, default prevention, in inconvenience of assembly, which are can be obtained by a projection system, the projection system comprises at least one light-emitting device; a time division supplying device of light that time-divides light emitted from the at least one light-emitting device and supplies it; a first condensing lens that focuses light passing through the time division supplying device of light; a first mirror that reflects light passing through the first condensing lens; an integrator that makes light reflected from the first mirror into a planar light; a second mirror that reflects light passing through the integrator; a third mirror that reflects light reflected from the second mirror to a DMD side; and a projection lens that projects light reflected from the second mirror onto a screen and has an optic axis disposed at both sides of the second mirror and the third mirror, respectively. | 09-01-2011 |
20110222024 | ILLUMINATION SYSTEM FOR PROJECTION DISPLAY - An illumination system for a projection display is disclosed in the present invention. The illumination system has three light sources for providing three primary color rays, two collimators for collimating the rays into light beams, and two beam splitters for reflecting and passing the light beams to make white light available. It can also include three light sources, one collimator and three individual beam splitters. The illumination system has a compact size and low manufacturing cost. Its lighting efficiency is better than that of a conventional illumination system. Hence, it is suitable for small size projectors. | 09-15-2011 |
20110228230 | LASER LIGHT SOURCE DEVICE AND IMAGE DISPLAY APPARATUS - A laser light source device has a laser light source for emitting a laser beam, a laser driver for driving the laser light source, a light-collecting lens for collecting the laser beam and reflecting a part of the laser beam, an optical sensor for receiving a reflected laser beam which has been reflected by the light-collecting lens and outputting a detection signal corresponding to intensity of the reflected laser beam, and a controller for controlling driving of the laser light source by the laser driver in accordance with the detection signal, and the light-collecting lens is disposed in a eccentric-rotated state so that an optical axis of the light-collecting lens has a tilt with respect to a central ray of the laser beam being incident on the light-collecting lens. | 09-22-2011 |
20110228231 | PROJECTION DISPLAY AND USE THEREOF - The invention relates to a projection display having at least one light source and also regularly-disposed optical channels. The optical channels comprise at least one field lens, to which respectively one object structure to be imaged and also at least one projection lens are assigned. The distance of the projection lenses from the assigned object structures corresponds to the focal distance of the projection lenses whilst the distance of the object structures to be imaged from the assigned field lens is chosen such that a Köhler illumination of the assigned projection lens is made possible. Then the individual projections are superimposed to form the total image. | 09-22-2011 |
20110228232 | ILLUMINATION DEVICE AND PROJECTOR - An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk. | 09-22-2011 |
20110234983 | SUBSTRATE CONNECTION STRUCTURE AND PROJECTOR - A substrate connection structure between a plurality of light modulating devices each having a flexible substrate extending in a predetermined direction and a circuit substrate connected with the light modulating devices, wherein the light modulating devices are arranged so that the direction of one flexible substrate extending from at least one of the light modulating devices is different from the directions of the other flexible substrates extending from the other light modulating devices, the substrate connection structure includes: a relay substrate which is connected with the one flexible substrate; and an extension flexible substrate which is connected with the relay substrate. | 09-29-2011 |
20110234984 | PROJECTOR - A projector includes a plurality of light modulation devices and a cooling device. The cooling device includes a cooling fan configured to introduce and discharge air, and a duct configured to guide air received from the cooling fan toward the plural light modulation devices. The duct includes a first duct portion configured to allow the air to flow through the light modulation devices from sides of the light modulation devices, and a second duct portion which communicates with the first duct portion and guides a part of the air flowing through the first duct portion toward devices other than the light modulation devices. | 09-29-2011 |
20110242495 | LIGHT SOURCE MODULE AND PROJECTION APPARATUS - A light source module and a projection apparatus are provided. The light source module includes a first light-emitting device, a wavelength conversion device, a second light-emitting device and a light combination device. The first light-emitting device emits an exciting beam. The wavelength conversion device is disposed on a transmission path of the exciting beam, and converts the exciting beam into a first color beam. The wavelength conversion device is suitable for moving, so that the exciting beam illuminates into different positions of the wavelength conversion device at different time. The second light-emitting device emits a second color beam. Colors of the first color beam and the second color beam are different. The light combination device is disposed on transmission paths of the first color beam and the second color beam, and combines the first color beam and the second color beam. | 10-06-2011 |
20110242496 | PROJECTION IMAGE DISPLAY DEVICE - A projection image display device has a plurality of light sources, a phosphor layer that emits light through excitation by at least any one of the light sources, an optical section, a temperature detector, a light-source intensity controller, an amplitude controller, a luminance controller. The optical section determines an optical path of light emitted from the light sources and the phosphor layer. The temperature detector directly or indirectly detects temperature of the phosphor layer or of the periphery of the phosphor layer. The light-source intensity controller controls intensity of an excitation light source that excites the phosphor layer. The amplitude controller controls the amplitude of a projection image signal. The luminance controller controls luminance of projection images by switching the light-source intensity controller and the amplitude controller according to a detected temperature. | 10-06-2011 |
20110242497 | LIGHT SOURCE SYSTEM AND PROJECTOR - There are provided a light source system which can suppress the deterioration of a luminescent material and a projector which can project a clear image. The light source system comprises a luminescent wheel, a driving unit for rotating the luminescent wheel, a light source for shining excitation light on to a luminescent material layer of the luminescent wheel, a light shining control unit for controlling an illumination timing of the light source, a light shining time integrating unit for integrating individual excitation light shining times to a plurality of predetermined divided areas of the luminescent wheel, an integrated light shining time storage unit for storing the individual light shining times to the predetermined divided areas, and a light shining range control unit for equalizing times over which excitation light is shone on to the plurality of predetermined divided areas of the luminescent wheel based on the individual excitation light shining times to the predetermined divided areas. | 10-06-2011 |
20110255057 | Multi-Projector Servo-Controlled Display System - A display system includes at least two devices for projecting images and a single screen, each projection device including an image source and projection optics arranged so as to project the image delivered by the image source onto a display region of the screen so that the various images projected from various image sources form a single image without obvious discontinuities, said display system having a device for monitoring and servo-controlling the alignment of the various images. The monitoring and servo-control device is such that the image delivered by each image source includes at least one detection pattern so that the projected image of said detection pattern meets the screen in a detection region located outside of the image display region, the screen having a plurality of light sensing elements, each light sensing element being associated with a projection device and placed so that the projected image of a detection pattern delivered by said projection device forms on its light-sensitive surface, the sensing element being arranged so as to determine the position and/or the orientation of said detection pattern and its photometric properties. | 10-20-2011 |
20110261326 | ILLUMINATION MODULE, PROJECTION APPARATUS, AND LIGHT SOURCE CONTROL METHOD - An illumination module including a light emitting element, a wavelength conversion unit, a control unit, and a determining unit is provided. The light emitting element is capable of emitting an excitation light beam. The wavelength conversion unit is disposed on a transmission path of the excitation light beam for converting the excitation light beam into a color light beam. The control unit is connected to the wavelength conversion unit and capable of driving the wavelength conversion unit to rotate and to shift relative to the excitation light beam. The determining unit is electrically connected to the control unit. When the determining unit determines that a shifting condition is satisfied, the determining unit instructs the control unit to shift the wavelength conversion unit relative to the excitation light beam, so as to change the irradiation position of the excitation light beam on the wavelength conversion unit. | 10-27-2011 |
20110279781 | PROJECTION SCREEN, PROJECTION SYSTEM AND METHOD FOR MAKING THE PROJECTION SCREEN - A projection system, projection screen, and method for making the screen are provided. The projection screen includes a flexible transparent substrate having a first surface and an opposite second surface; and a reflective film formed on the second surface of the substrate. The reflective film reflects red, green and blue light, such as from a projector, making it viewable on the screen, and substantially absorbs ambient light other than the above specified light wavelengths, resulting in relatively higher contrast. | 11-17-2011 |
20110279782 | LIGHT SOURCE SYSTEM AND PROJECTION APPARATUS USING THE SAME - A light source system and a projection apparatus using the same are provided. The light source system comprises a light guide module, a light emitting module and a wavelength conversion element. The light guide module has a first side and a second side. The light emitting module is configured to generate a first light, a second light, a third light and a fourth light. The wavelength conversion element, disposed beside the second side of the light guide module, is configured to receive the second light and the fourth light, and to generate a fifth light according to the second light and the fourth light. The second light and the fourth light are guided to the wavelength conversion element via the light guide module. The first light, the third light and the fifth light are guided to the first side via the light guide module. | 11-17-2011 |
20110285968 | DISPLAY APPARATUS FOR DISPLAYING MULTIPLE VIEW ANGLE IMAGES - A display apparatus for displaying multiple view angle images is provided. The display apparatus comprises a display screen and a plurality of projectors. Each of the projectors comprises at least a light source module, a spatial light modulator and a lens. The first view angle image and second view angle image emitted from each projector are guided to a first sub-viewing zone and a second sub-viewing zone via a first light beam and second light beam, respectively. The sub-viewing zones imaged by each projector are adjacent to each other along a transverse axis sequentially. | 11-24-2011 |
20110292349 | LIGHT SOURCE DEVICE, LIGHTING DEVICE AND IMAGE DISPLAY DEVICE USING SUCH LIGHT DEVICE - For a lighting device for obtaining output light in the wavelengths of light of three colors of red, green, and blue, a lighting device using a semiconductor laser for the blue light has been proposed. When using this lighting device in an image display device, etc., there are problems in blue color rendering properties and reduced image quality due to speckle noise. A light source device designed to emit red light, green light, a first blue light, and a second blue light, the light source device including: a red solid-state light source; a green solid-state light source; a semiconductor laser for emitting the first blue light; and a blue light generation part for emitting the second blue light, wherein the main component of the second blue light is light in a wavelength range of wavelengths longer than that of the first blue light. | 12-01-2011 |
20110292350 | 2-DIMENSIONAL IMAGE DISPLAY DEVICE, ILLUMINATION LIGHT SOURCE AND EXPOSURE ILLUMINATION DEVICE - A 2-dimensional beam scan unit reflects emission beams from a red laser light source, a green laser light source and a blue laser light source and scans in a 2-dimensional direction. Diffusion plates diffuse the respective light beams scanned in the 2-dimensional direction to introduce them to corresponding spatial light modulation elements. The respective spatial light modulation elements modulate the respective lights in accordance with video signals of the respective colors. A dichroic prism multiplexes the lights of the three colors after the modulation and introduces the multiplexed lights to a projection lens so that a color image is displayed on a screen. Since the 2-dimensional light emitted from the beam scan unit is diffused to illuminate the spatial light modulation element, it is possible to change the optical axis of the beam emerging from the light diffusion member for irradiating the spatial light modulation element moment by moment, thereby effectively suppressing speckle noise. | 12-01-2011 |
20110304829 | IMAGE DISPLAY APPARATUS - The present invention provides an image display apparatus which includes a red color laser light source that outputs red color laser light; a blue color laser light source that outputs blue color laser light; and a green color laser light source that outputs green color laser light. Further, the green color laser light source includes a semiconductor laser that emits non-visible light; and a wavelength convertor that converts the non-visible light to visible light and thereby outputs a green color laser. Furthermore, the image display apparatus has a projecting lens that outputs the laser light of the respective colors; and a case that retains the red color laser light source, the blue color laser light source, and the projecting lens. The case has a protrusion that retains the green color laser light source. | 12-15-2011 |
20110310353 | LIGHT SOURCE DEVICE AND PROJECTION DISPLAY APPARATUS - A light source device includes: a reference light source that emits reference color component light of a plurality of colors; an excitation light source that emits excitation light for supplemental color component light; a luminous body member including a luminous body that emits the supplemental color component light in response to the excitation light; and a combining unit that combines the reference color component light of the plurality colors and the supplemental color component light in such a way as to superimpose the supplemental color component light on light paths of the reference color component light of the plurality of colors. | 12-22-2011 |
20110310354 | MULTI-PROJECTION SYSTEM, PROJECTOR, AND METHOD OF CONTROLLING PROJECTION OF IMAGE - A multi-projection system includes a first projector and a second projector. Each of the projectors includes: a light source; a modulation device that modulates light emitted by the light source; a projection device that projects light modulated by the modulation device; a brightness reduction device that reduces brightness of the projection image projected by the projection device; a color mode switching unit that changes a color mode of the projector; and a brightness reduction control device that adjusts a range for which brightness is reduced by the brightness reduction device in accordance with the change in the color mode of the projector. | 12-22-2011 |
20110310355 | PROJECTOR - A projector includes: a plurality of reflection type light modulation devices which modulates a corresponding color light; a color synthesize optical device which has a plurality of light entrance side surfaces and a crossing surface to combine the received color lights; a heat sink which has a base attached to the corresponding reflection type light modulation device, and a fin protruding from the base and extending in a direction crossing the crossing end surface; and a duct member disposed at a position opposed to the crossing surface to supply introduced air toward the heat sink, wherein the duct member includes a first outlet section disposed opposed to the fin such that the introduced air can be supplied toward the base through the first outlet section, and a second outlet section through which the introduced air is supplied in the extending direction of the fin. | 12-22-2011 |
20110310356 | IMAGE PROJECTOR AND AN ILLUMINATING UNIT SUITABLE FOR USE IN AN IMAGE PROJECTOR - An image display device having an RGB illuminating module that includes a diffractive beam combiner. The diffractive beam combiner includes a first light source arranged to provide a first light beam having red color and a second light source arranged to provide a second light beam having green color. A centerline of the first light beam and a centerline of the second light beam are arranged to intersect at an intersection point. A diffractive output grating is located in the vicinity of the intersection point. The diffractive output grating is arranged to form an output light beam by diffracting light of the first light beam and light of the second light beam substantially in the same direction. | 12-22-2011 |
20110317131 | ILLUMINATION OPTICAL SYSTEM, LIGHT SOURCE DEVICE, AND PROJECTOR - An illumination optical system includes: a light source device including: a red light-emitting device that emits red light; a blue light-emitting device that emits blue light; and a fluorescence plate comprising a green fluorescence region and a light transmission region, wherein the green fluorescence region is excited by the blue light to emit green light, and the light transmission region transmits the blue light; a light guide including a dichroic layer therein, wherein the dichroic layer is arranged to intersect a center axis of the light guide at about 45 degree to transmit the blue light while reflecting the green light and the blue light; a mirror group and a lens group. The blue light transmitted through the light transmission region is incident on an end surface of the light guide, and the red light and the green light are incident on a side surface of the light guide. | 12-29-2011 |
20110317132 | IMAGE DISPLAY DEVICE - An image display device having a screen having a fluorescent region including a fluorescent material; a light irradiation system, including a first light source outputting excitation light exciting the fluorescent material; a second light source outputting visible light; a scanning unit scanning with a light beam output from each of the first light source and the second light source on the screen; and an excitation light wavelength band reflector reflecting light in a wavelength band of the excitation light toward the screen, and formed on an output side of a light beam from the light irradiation system with respect to the screen. The visible light output from the second light source is diffused by the screen, while the excitation light output from the first light source develops a color different from that of the visible light by being projected in the fluorescent region. | 12-29-2011 |
20120002174 | LIGHT SOURCE SYSTEM OF PICO PROJECTOR - The a light source system of pico projector is composed of a light-emitting diode module, collimators, a lens array, magnification lenses, and an LCoS (light crystal on silicon) panel, arranged in sequence with appropriate spacing in-between. The light-emitting diode module, as the light source, emits red, green, and blue lights. The collimators convert light from the light-emitting diode module into collimated light. The lens array homogenizes the collimated light. The magnification lenses magnify the homogenized light from the lens array with a predetermined ratio onto the LCoS panel. The LCoS panel reflects and modulates the light to form an optic signal to be projected to a screen. | 01-05-2012 |
20120013852 | Alternating Beam Laser Imaging System with Reduced Speckle - An imaging system ( | 01-19-2012 |
20120013853 | PROJECTOR - A projector includes: a plurality of light modulating devices; a light combining optical device having a plurality of light incidence planes that faced a corresponding one of the light modulating devices, the light combining optical device configured to combine the color lights modulated by the plurality of light modulating devices; and fixing members each having a plate-like base in which an opening is formed, the fixing members configured to fix the light modulating devices to the light combining optical device, the light modulating devices are fixed to the fixing members in a state in which the light modulating devices are inserted in the openings. | 01-19-2012 |
20120019785 | LIGHT SOURCE MODULE, PROJECTION APPARATUS, AND METHOD OF CONTROLLING THE SAME - A light source module, a projection apparatus, and a method of controlling the projection apparatus are provided. The projection apparatus has the light source module. The light source module has a first light source, a wavelength transforming unit, and a driver. The first light source generates a first light beam having a first wavelength according to a first pulse width modulation (PWM) signal. The wavelength transforming unit transforms the first light beam into a second light beam having a second wavelength. The driver drives the wavelength transforming unit, such that the first light beam irradiates a start position on the wavelength transforming unit when a rising edge of the first PWM signal is detected. The start position is determined by a controller. | 01-26-2012 |
20120019786 | PROJECTION TYPE IMAGE DISPLAY APPARATUS - A projection type image display apparatus using a light source where excitatory light makes fluorescent material to emit fluorescent light is provided with improved lifetime of a fluorescent material light source without increasing in the apparatus size, The apparatus comprises an excitatory light source cluster, a substrate on which fluorescent material is arranged, light intensity detectors measuring the intensities of the excitatory light and the fluorescent light, a control device which judges based on the measured values of the light intensity detectors whether or not to move the substrate, and a motion device which moves the substrate. The control device may issue an instruction to move the substrate when the ratio of the decrease in the fluorescent light intensity to that in the excitatory light intensity exceeds a prescribed value. Also, the substrate may be moved in a direction perpendicular to the direction of the excitatory light optical axis. | 01-26-2012 |
20120019787 | IMAGE PROJECTION APPARATUS UTILIZING REFLECTIVE IMAGE DISPLAY ELEMENT - An image projection apparatus includes a beam splitter configured to split light from a light source into first color light and second color light, a first reflective image display element configured to optically modulate the first color light, a second reflective image display element configured to optically modulate the second color light, a first parallel plate arranged between the beam splitter and the first reflective image display element and made of a large refractive index wavelength dispersion, and a second parallel plate arranged between the beam splitter and the second reflective image display element and made of a large refractive index wavelength dispersion. | 01-26-2012 |
20120038892 | LIGHT SOURCE MODULATION FOR PROJECTION - A color projection display in which at least one color channel includes: a light source assembly including a multiplicity of pulse modulated light sources providing an aggregate light beam; a light modulation control subsystem; illumination optics to direct the aggregate light beam to an image modulation plane; and a spatial light modulator in the image modulation plane. The light modulation control subsystem senses an aggregate light intensity signal for the aggregate light beam and controls the pulse modulation parameters for the multiplicity of pulse-modulated light sources responsive to the sensed aggregate light intensity signal to reduce light intensity fluctuations in the aggregate light beam within the imaging time interval. | 02-16-2012 |
20120044461 | ILLUMINATION SYSTEM AND PROJECTION DEVICE COMPRISING THE SAME - An illumination system and a projection device comprising the same are provided. The projection device comprises an image-forming system and the illumination system. The illumination system comprises a first light source device, a second light source device and a first light guiding device. The first light source device generates a visible light, while the second light source device directly generates a substantially pure infrared light. The first light guiding device is adapted to guide the visible light and the infrared light to the image-forming system for processing to make the visible light form a visible light image and make the infrared light form an infrared light image. | 02-23-2012 |
20120044462 | PROJECTOR - An aspect of the present embodiment, there is provided a projector, including a first optical source fixed on a first mount substrate, the first optical source emitting a first light, a second optical source fixed on the first mount substrate being apart from the first optical source for a first distance, the second optical source emitting a second light, a third optical source fixed on a second mount substrate, the third optical source emitting a third light, an emission period of the third light being set between an emission period of the first light and an emission period of the second light. | 02-23-2012 |
20120057135 | Low power and low cost projection system - A system comprising of low cost and low power projection engine comprising of means of producing non-coherent light source, means of condensing non-coherent light into narrow beams, means of focusing and scanning narrow beam light on screen where as image is projected on screen by producing light for each pixel of image. Source of non-coherent light can be LED. | 03-08-2012 |
20120062849 | PROJECTION APPARATUS - A projection apparatus including an illumination unit, a brightness detection circuit, a signal conversion circuit, and a control unit is provided. The illumination unit generates a light source according to a plurality of driving signals and provides a temperature sensing signal according to the temperature of the light source. The brightness detection circuit generates a plurality of brightness sensing signals. The signal conversion circuit converts the temperature sensing signal and the brightness sensing signals into temperature information and a plurality of brightness information. The control unit comprises a setting table for storing a predetermined temperature information and a plurality of predetermined brightness information, and the control unit adjusts the driving signals in order to identify the converted temperature information and the converted brightness information conform to the stored information in the setting table. | 03-15-2012 |
20120062850 | LASER-SCANNING VIRTUAL IMAGE DISPLAY - A virtual-image projector comprises a laser configured to form a narrow beam, first and second dilation optics, first and second redirection optics each having a diffraction grating, and a controller. The first dilation optic is arranged to receive the narrow beam and to project a one-dimensionally dilated beam into the second dilation optic. The second dilation optic is arranged to receive the one-dimensionally dilated beam and project a two-dimensionally dilated beam. The first and second redirection optics are each operatively coupled to a transducer. The first redirection optic is arranged to direct the narrow beam into the first dilation optic at a first entry angle. The second redirection optic is configured to direct the one-dimensionally dilated beam into the second dilation optic at a second entry angle. The controller is configured to bias the transducers to vary the first and second entry angles. | 03-15-2012 |
20120062851 | IMAGE DISPLAY SYSTEM - The image display system comprises laser light source units ( | 03-15-2012 |
20120062852 | IMAGE DISPLAY DEVICE - An image display device includes a housing that accommodates a plurality of laser light source devices that emit laser light of respective colors, a light modulator, a projection optical system and a controller, a movable body that is ejectable from and retractable into the housing and includes at least the projection optical system, a first switch that turns ON in a use state in which the movable body is ejected from the housing, and a second switch that turns ON in response to an operation of an operating portion by a user. The laser light is emitted from the plurality of laser light source devices when both of the first switch and the second switch turn ON. Accordingly, laser light is securely prevented from being emitted in a nonuse state by a switch erroneously turned ON. | 03-15-2012 |
20120075590 | ILLUMINATION SYSTEM AND PROJECTION DEVICE COMPRISING THE SAME - An illumination system and a projection device comprising the same are provided. The illumination system comprises a main optical axis, a light source, a wheel, an optical device, a first wavelength transformer and a first angle selective film. The light source is adapted to provide a light beam advancing along the main optical axis. The wheel is adapted to rotate according to a control signal. The optical device comprises a first lens, a second lens and a third lens sequentially disposed between the light source and the wheel along the main optical axis. The optical device is adapted to converge the light beam to a focused position on the wheel. The first wavelength transformer is disposed on the wheel for receiving and transforming the light beam into a first wavelength light. The first angle selective film is adapted to angle-selectively filter the first wavelength light, and is disposed on the first wavelength transformer. The first wavelength transformer is disposed between the light source and the first angle selective film. | 03-29-2012 |
20120075591 | LIGHT SOURCE UNIT AND PROJECTOR - A light source unit includes an excitation light source and a luminescent wheel on which luminescent light emitting areas including, on a reflecting surface, red and green luminescent materials which respectively emit light of red and green wavelength band, when receiving excitation light, and a diffuse transmission area which diffuses and transmits excitation light, are aligned end to end in a circumferential direction. An excitation light incident surface of a luminescent material layer of the luminescent wheel has a surface with a plurality of projecting bodies. Regular quadrangular pyramids are arranged thereon in a matrix with outer boundaries of bottom portions of adjacent regular quadrangular pyramids contacting each other. The pyramids rise at a rising angle of at least 30°, and a length of one side of an outer boundary of the bottom portion of the pyramid is between 10 and 100 μm. | 03-29-2012 |
20120075592 | OPTICAL UNIT AND PROJECTION DISPLAY DEVICE - Provided is an optical unit that includes: light source ( | 03-29-2012 |
20120092624 | ILLUMINATION DEVICE AND DISPLAY UNIT - An illumination device includes: a light source section having plural kinds of light sources, in which the light sources emits light beams having different wavelengths; a parallelizing optical system parallelizing each of the light beams entered from the light sources, and allowing each of the parallelized light beams to exit therefrom; a light path unifying optical system unifying the parallelized light beams exited from the parallelizing optical system into a single light path; an expanding optical system expanding a beam diameter of each of the parallelized light beams unified into the single light path, and allowing each of the expanded and parallelized light beams to exit therefrom; and a uniformizing optical system uniformizing an in-plane intensity distribution in each of the expanded and parallelized light beams exited from the expanding optical system. | 04-19-2012 |
20120099082 | ILLUMINATION APPARATUS AND PROJECTION APPARATUS - An illumination apparatus including a first light emitting device, a first phosphor layer, a second light emitting device and a second phosphor layer and a beam combining element is provided. The first light emitting device is capable of providing a first light beam and the first phosphor layer is disposed on the transmission path of the first light beam. The second light emitting device is disposed opposite to the first light emitting device and for providing a second light beam, wherein the second phosphor layer is disposed on the transmission path of the second light beam. The beam combining element is disposed between the first phosphor layer and the second phosphor layer. In addition, the invention also provides a projection apparatus. | 04-26-2012 |
20120105810 | PROJECTION DEVICE WITH BRIGHTNESS ADJUSTMENT FUNCTION AND METHOD THEREOF - A projection device with a brightness adjustment function includes a display, a light source, a lens module, a power supply unit, a light detection unit and a power controller. The light source emits light to the display. The lens module projects the images to be displayed by the display. The power supply unit supplies power for the light source. The light detection unit acquires a digital value of a portion of the light from the light source that is not received by the display, and compares the digital value with a predetermined digital value to generate a control signal. The power controller adjusts power from the power supply unit to the light source according the control signal until the digital value matches the predetermined digital value of the light from the light source. | 05-03-2012 |
20120105811 | LIGHT SOURCE ADJUSTING DEVICE AND PROJECTION SYSTEM COMPRISING THE SAME - A light source adjusting device and a projection system comprising the light source adjusting device are provided. The projection system further comprises a light source module which is capable of providing a first beam with a first wavelength. The light source adjusting device comprises a first angle selecting layer, a wavelength converting layer and a second angle selecting layer. The first angle selecting layer receives the first beam and allows a first portion of the first beam to pass therethrough to form a second beam that also has the first wavelength. The first portion of the first beam is a portion of the first beam that is less than an incident angle. The wavelength converting layer receives the second beam transmitted from the first angle selecting layer and converts the second beam with the first wavelength into a third beam with a second wavelength. The second angle selecting layer receives the third beam and allows the third portion of the third beam to pass therethrough to form a fourth beam that also has the second wavelength. The third portion of the third beam is a portion of the third beam that is less than an emergence angle. The second wavelength is larger than the first wavelength, and the emergence angle is less than the incident angle. | 05-03-2012 |
20120105812 | Scanning Laser Projector - A scanning projector for projecting an image comprising multiple wavelength signals is disclosed. Embodiments of the present invention include a beam combiner comprising a planar lightwave circuit having a plurality of surface waveguides arranged to define a plurality of input ports, a mixing region, and an output port. Each input port receives a different wavelength signal and provides it to the mixing region. The mixing region combines the plurality of wavelength signals into a single composite output beam that is scanned over a region to create an image in a region. | 05-03-2012 |
20120113395 | PROJECTION APPARATUS - A projection apparatus includes an illumination system, a light valve, a light beam adjusting element, and a light reflective unit. The illumination system is capable of providing an illumination beam. The light valve, the light beam adjusting element, and the light reflective unit are disposed on a transmission path of the illumination beam. The light valve is disposed between the illumination system and the light reflective unit. The light valve has an active surface for being capable of converting the illumination beam into an image beam. The light beam adjusting element is disposed on the transmission path of the illumination beam and between the illumination system and the light valve. The light beam adjusting element includes at least one lens having a first optical axis. The first optical axis and a normal vector of the active surface are not perpendicular to each other. | 05-10-2012 |
20120113396 | FILTER-FREE PROJECTOR - A filter-free projector includes a light source unit to generate light beam with different color and a color control module couple to the light source unit for switching the light source unit to emit one color light at a time. A digital mirror device panel having a plurality of mirror elements is provided so as to reflect light fed from the light source unit. Projection lens is positioned in the reflected light path from the digital mirror device panel to project image. | 05-10-2012 |
20120120372 | SYSTEM AND METHOD FOR CALIBRATING A DISPLAY SYSTEM USING MANUAL AND SEMI-MANUAL TECHNIQUES - The invention provides a system and method that reduces the tediousness of the manual alignment process. Users select correspondences between projectors or components of a projector, to form a common coordinate. Using models of the display system, and projectors, the common coordinate system can be mapped quickly to the entire display. The process avoids a need to measure screen points, and allows the user to move significantly fewer points. Alternatively, the invention allows introduction of machine-vision style algorithms into manual calibration techniques to improve performance. This overcomes the tediousness of prior systems by introducing models of the display into the manual alignment process, allowing selection of a small number of points on each projector, and avoiding selection of precisely measured screen points. The system conversely finds correspondences between projectors, allowing mapping of the projectors into a common coordinate system, and quick warping of the coordinate system to the screen. | 05-17-2012 |
20120127437 | Wavelength-Switched Optical Systems - Optical systems operable to emit an output beam having fast-switched wavelengths are provided. In one embodiment, an optical system includes a laser and a wavelength conversion device. The laser emits a pump beam that switches between at least two fundamental spectral peaks at different wavelengths at a wavelength cycling period that is shorter than a response time of the human eye. The wavelength conversion device includes a non-linear optical medium configured to phase match the frequency doubling of the at least two switched fundamental spectral peaks such that an output beam that switches between at least two frequency-converted spectral peaks at different converted-wavelengths is emitted from an output facet of the wavelength conversion device when the pump beam of the optical source is incident on an input facet of the wavelength conversion device. | 05-24-2012 |
20120133898 | PROJECTION APPARATUS - A projection apparatus includes an illumination system, a light valve, a projection lens, and a first reflective unit. The illumination system provides an illumination light beam. The light valve is disposed on a transmission path of the illumination light beam and capable of converting the illumination light beam into an image light beam. The illumination light beam is transmitted to the light valve vertically. The projection lens is disposed on a transmission path of the image light beam. The first reflective unit disposed on the transmission path of the image light beam is located between the light valve and the projection lens. The first reflective unit is capable of reflecting the image light beam from the light valve to the projection lens. The image light beam reflected by the first reflective unit to the projection lens is perpendicular to the illumination light beam transmitted to the light valve. | 05-31-2012 |
20120133899 | Filter-Free Projector - A filter-free projector includes a light source unit to generate light beam with different color and a color control module couple to the light source unit for switching the light source unit to emit one color light at a time. A digital mirror device panel having a plurality of mirror elements is provided so as to reflect light fed from the light source unit. Projection lens is positioned in the reflected light path from the digital mirror device panel to project image. The switching-on time of the two of the at least three independent lights is (1) non-overlap, (2) over-lapped with fifty percentage, (3) over-lapped higher than said fifty percentage, and (4) lower than said fifty percentage. | 05-31-2012 |
20120133900 | ILLUMINATION UNIT, PROJECTION DISPLAY UNIT, AND DIRECT VIEW DISPLAY UNIT - An illumination unit includes one or more light sources each including a solid-state light-emitting device configured to emit light from a light emission region including a single or a plurality of light-emitting spots. The solid-state light-emitting device includes a single chip or a plurality of chips each emitting a light beam. Three or more of the light-emitting spots are provided within the whole of one or more light sources, to allow the whole of one or more light sources to emit light beams in two or more wavelength bands different from one another, and the solid-state light emitting device in a first light source which is at least one of the one or more light sources, has a plurality of light-emitting spots which emit light in the same wavelength band. | 05-31-2012 |
20120133901 | ILLUMINATION UNIT, PROJECTION DISPLAY UNIT, AND DIRECT VIEW DISPLAY UNIT - An illumination unit includes a plurality of light sources each including a solid-state light-emitting device configured to emit light from a light emission region including a single or a plurality of light-emitting spots. The solid-state light-emitting device includes a single chip or a plurality of chips each emitting light beam. Three or more of the light-emitting spots are provided within the whole light sources, to allow the whole light sources to emit light beams in two or more wavelength bands different from one another. Two or more of the plurality of the light sources include respective light-emitting spots which emit light in the same wavelength band. | 05-31-2012 |
20120133902 | DISPLAY AND PORTABLE PROJECTOR - This display includes a control portion controlling a laser beam generation portion to output a first laser beam including a region of relaxation oscillation to a partial first image forming element included in a plurality of image forming elements and to output a second laser beam including no region of relaxation oscillation to a second image forming element, other than the first image forming element, included in the plurality of image forming elements. | 05-31-2012 |
20120133903 | LIGHT SOURCE DEVICE AND PROJECTION DISPLAY APPARATUS - A light source device includes: first and second solid-state light source units disposed opposite to each other, each unit including solid-state light sources; a reflection unit; a condensing part; and a fluorescence emission plate excited with a condensed light beam. The light sources in each of the units are arranged two-dimensionally with the optical axes oriented in an x-axis direction. Each column of the light sources of the first and the second light source units are arranged alternately in the y-axis direction. The reflection unit reflects the light beams from the light source units in the z-axis direction so as to be arranged into a two-dimensional array in a xy plane. A density of the reflected light beams in the x-axis direction is higher than that of the arrangement of the light sources in the z-axis direction. Light from solid-state light sources are condensed and combined efficiently, with a compact configuration. | 05-31-2012 |
20120140185 | LIGHT SOURCE UNIT AND PROJECTOR - A projector is provided which includes a light source unit which can reduce the numbers of lenses and mirrors and which can control quantity of light of each color. | 06-07-2012 |
20120140186 | LIGHT COLLECTING OPTICAL SYSTEM AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS - A light collecting optical system includes surface-emitting light sources, collimate lenses, and a condenser lens. Light emitting surfaces of the surface-emitting light sources have a rectangular shape of the same size as each other, and have a similar figure to an incident surface of an integrator rod, the collimate lenses are disposed so that the optical distances from the collimate lenses to the condenser lens are approximately the same, and the surface-emitting light sources are disposed so that the optical distances Lr, Lg and Lb from the light emitting surfaces to the collimate lenses satisfy Lb06-07-2012 | |
20120147331 | LIGHT SOURCE UNIT AND PROJECTOR - A light source unit is provided which includes:
| 06-14-2012 |
20120147332 | ILLUMINATION SYSTEM AND PROJECTION DEVICE COMPRISING THE SAME - An illumination system and a projection device comprising the same are provided. The projection device further comprises an imaging system. The illumination system comprises a first light source, a dichroic element and a wheel plate. The dichroic element comprises a first dichroic portion and a second dichroic portion. The first light source provides a first wave band light, which is reflected to the wheel plate by the first dichroic portion. When being projected onto a wave band transforming area of the wheel plate, the first wave band light will be transformed into a second wave band light by the wave band transforming area and then emits through the first dichroic portion and the second dichroic portion. When being projected onto a reflecting area of the wheel plate, the first wave band light will be reflected by the reflecting area to emit through the second dichroic portion. | 06-14-2012 |
20120147333 | Color Combining Illumination Device - An illumination device comprising a first light source generating first light beam having a first spectral distribution and a second light source generating a second light beam having a second spectral distribution. A first dichroic reflector is positioned in the first light beam and transmits a part of the first light beam and reflects a part of the second light beam. The first and second light beam propagates initially primarily in a first direction along an optical axis and reflecting means reflects the second light beam towards the dichroic reflector. The light sources, the dichroic reflector and reflecting means are mutually arranged such that the second light beam propagates primarily in a second direction substantially opposite the first direction and towards the first light source after being reflected by the reflecting means and such that the second light beam propagates substantial in the first direction after being reflected by the dichroic reflector. | 06-14-2012 |
20120147334 | LASER PROJECTOR - There is provided a laser projector, including: a laser source section for emitting laser beams; a spatial light modulator which modulates the laser beams to generate image light; a projector lens from which the image light is emitted; a beam shaper which shapes the laser beams into a shape of the spatial light modulator; and a pupil uniformizer which makes a light intensity distribution uniform at an exit pupil of the projector lens, wherein the pupil uniformizer is situated between the laser source section and the beam shaper. | 06-14-2012 |
20120147335 | PROJECTOR AND METHOD OF CONTROLLING A LIGHT SOURCE FOR USE WITH THE PROJECTOR - A projector has a storage unit storing data on a plurality of different light emission patterns each occurring in a period based on a plurality of different-colored lights, wherein each light emission pattern corresponds to a respective one of a plurality of different projection conditions of a color image. An acquiring unit acquires a present projection condition of the color image, and a controller controls a light emission operation of the plurality of different-colored light emitting elements in the period in accordance with data on a light emission pattern corresponding to the present projection condition of the color image. | 06-14-2012 |
20120154759 | Color-Combining Illumination Device - The present invention relates to an illumination device comprising a first light source array comprising at least a first light source; said first light source generates a first light beam having a first spectral distribution; said first light beam propagates primarily in a first direction along an optical axis; a second light source array comprising at least a second light source, said second light source generates a second light beam having a second spectral distribution; at least a first dichroic reflector positioned at least partially in said first light beam and said second light beam; said first dichroic reflector transmits at least a part of said first light beam and reflects at least a part of said second light beam; that said second light beam propagates in a second direction towards at least a part of said first light source array and at least substantially opposite to said first direction; that at least a part of said second light beam propagates primarily in said first direction after being reflected by said at least first dichroic reflector. | 06-21-2012 |
20120162612 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS COMPRISING THE SAME - An illumination system and a projection apparatus are provided. The projection apparatus comprises the illumination system and an imaging system for forming an image. The illumination system comprises a plurality of light source modules, a first wavelength transformer, an optical apparatus and a first angle selective film. The light source modules are used for generating a plurality of light beams. The first wavelength transformer is disposed at a predetermined position. The optical apparatus is disposed between the light source modules and the first wavelength transformer for focusing the light beams to the predetermined position. The first angle selective film is disposed on the first wavelength transformer. The first wavelength transformer is disposed between the first angle selective film and the optical apparatus. The first angle selective film is used for angle-selectively filtering the light beams passing through the first wavelength transformer. | 06-28-2012 |
20120162613 | PROJECTION APPARATUS - A projection apparatus including an illumination system, a light valve, and a projection lens is provided. The illumination system provides an illumination beam. The light valve is disposed on a transmission path of the illumination beam, and is used to convert the illumination beam into an image beam. The projection lens is disposed on a transmission path of the image beam and has a lens group, and the lens group includes a plurality of lenses. A lens of the lenses closest to the light valve has an optical axis, a first edge, and a second edge. The first edge and the second edge are located on opposite sides of the optical axis, and a ratio of a distance from the first edge to the optical axis and a distance from the second edge to the optical axis is greater than or equal to 0 and less than 1. | 06-28-2012 |
20120162614 | Light Source Device - A light source device includes excitation light sources integrated into a module and each emitting excitation light. A beam splitter optical system splits the excitation light from the excitation light sources into first, second, and third portions. A first fluorescent member emits red light in response to the first portion of the excitation light through fluorescence. A second fluorescent member emits green light in response to the second portion of the excitation light through fluorescence. A third fluorescent member emits blue light in response to the third portion of the excitation light through fluorescence. A combining optical system combines the red light, the green light, and the blue light. | 06-28-2012 |
20120162615 | Image Projection Apparatus - Assuming that a normal line of an image display surface of a DMD is a normal line Ax of the image display surface, that a direction in which a light beam specularly reflected by a mirror is outputted is a specular reflection direction R, and that an angle that the specular reflection direction R forms with respect to the normal line Ax of the image display surface is denoted by γ, an image projection apparatus satisfies the following conditional expression: β | 06-28-2012 |
20120170003 | Color Image Projector - A color image projector includes a sequence light color control module; a light guiding structure; a plurality of mono-light sources coupled to the color-light control unit for emitting light of the plurality of mono-light sources in sequence, and wherein the plurality of mono-light sources located at three sides of the light guiding structure; a gray scale display correspondingly configured to a fourth side of the light guiding structure and for displaying gray scale image, and whereby forming red, green, blue images in sequence by the plurality of single-color light sources; and a projection lens correspondingly configured to the display for projecting the red, reen, and blue images sequentially, whereby forming color images by visible persistence. | 07-05-2012 |
20120170004 | PROJECTION SYSTEM, LIGHTING DEVICE AND METHOD FOR CONTROLLING THEREOF - Provided are a projection system, a lighting device, and a method for controlling thereof. The projection system includes: a light source unit including a first light source and a second source for projecting a first color corresponding to that of the first light source; a sensing unit for measuring a temperature of each of the first and second light sources; and a driver IC for driving at least one of the first light source and the second light source according to a temperature value measured by the sensing unit. | 07-05-2012 |
20120182526 | PROJECTOR - A projector includes an illumination device including a light source that outputs light from a light emitting part, a first lens array having plural first small lenses, a second lens array having plural second small lenses corresponding to the plural first small lenses, and a superimposing lens that superimposes lights from the second lens array, a light modulation device that modulates light from the illumination device in response to image information, and a projection optical system that projects the light from the light modulation device on a projection target, wherein radii of curvature of the first small lenses are set with respect to each first small lens. | 07-19-2012 |
20120182527 | IMAGE DISPLAY APPARATUS - An image display apparatus having a case supporting laser light source apparatuses emitting laser light of green color, red color, and blue color, a projection optical system; and a cooler that cools the laser light source apparatuses. The case includes: a front wall to which the blue color laser light source apparatus is mounted and a projection outlet of the projection optical system is provided; and a side wall that is connected to the front wall and to which the red color laser light source apparatus and the green color laser light source apparatus are mounted. The cooler is provided on the side wall side. The image display apparatus further includes dichroic mirrors guiding the laser light of respective colors to the projection optical system side. Either of the dichroic mirrors reflects laser light having a wavelength shorter than or equal to the wavelength of the green color laser light. | 07-19-2012 |
20120188515 | PROJECTOR HAVING LASER LIGHT SOURCE - A projector includes at least one laser light source and at least one optical component. Each laser light source is configured to emit light beams. Each optical component includes a magnifying element, a homogenizing element, and a Fresnel lens. The magnifying element is positioned adjacent to a corresponding one of the at least one laser light source and configured to magnify the light beams from the corresponding laser light source. The homogenizing element is configured to homogenize the light beams from the magnifying element. The Fresnel lens is configured to condense the light beams from the homogenizing element. | 07-26-2012 |
20120188516 | ILLUMINATION DEVICE AND PROJECTOR - An illumination device includes a substrate including a fluorescent layer, and capable of rotating around a predetermined rotary shaft, a light source adapted to emit an excitation light adapted to excite the fluorescent layer, and a control device adapted to control emission of the light source so that, when the substrate is rotating, a first area of the fluorescent layer is irradiated with the excitation light in one round, and at least a part of the first area is not irradiated with the excitation light in another round. | 07-26-2012 |
20120188517 | PROJECTOR - A projector includes a lighting device that emits light of a plurality of colors, a plurality of vertical alignment mode reflex-type liquid crystal light valves that modulate the color light, a phase difference compensation plate including a C-plate and an O-plate provided between the lighting device and the liquid crystal light valve, a color synthesizing element that synthesizes the color light after modulation, and a projection optical system that projects the synthesized light to a projection target face, and a front side phase difference value of the phase difference compensation plate corresponding to at least one liquid crystal light valve is different from a front side phase difference value of the other liquid crystal light valves. | 07-26-2012 |
20120188518 | LIGHT SOURCE DEVICE AND PROJECTION DISPLAY APPARATUS - A light source device includes a fluorescent assembly and a light tunnel. The light tunnel is located on the fluorescent assembly with no gap. | 07-26-2012 |
20120188519 | PROJECTION AND DISPLAY SYSTEM - A projection system and a display that incorporates the projection system are provided. The projection system includes at least one electroluminescent device that emits a first wavelength of light, at least one semiconductor multilayer stack that downconverts the first wavelength of light to a second wavelength of light, and a scanning optical element that transmits the light along a scanned direction. The electroluminescent device can be part of an array of electroluminescent devices, and can be monolithic. The semiconductor multilayer stack can be part of an array of semiconductor multilayer stacks, and can also be monolithic. The scanning optical element can be positioned to scan the electroluminescent device across the semiconductor multilayer stack, or it can be positioned to scan the downconverted light after it has left the semiconductor multilayer stack. | 07-26-2012 |
20120194786 | IMAGE PROJECTION APPARATUS - The image projection apparatus includes light modulation elements, a color separation/combination optical system (β) configured to, in a specific cross section, separate light source light into plural color lights, introduce the color lights to the corresponding light modulation elements, combine the modulated color lights and introduce the combined color lights to a projection optical system, a holding member holding the color separation/combination optical system, an electrical circuit substrate attached to the holding member parallel to the specific cross section and electrically connected to the light modulation elements, and an optical element insertable into and extractable from the color separation/combination optical system. The holding member has a configuration allowing, in a direction orthogonal to the specific cross section on an opposite side to an electrical circuit substrate side, the insertion/extraction of the optical element into and from the color separation/combination optical system. | 08-02-2012 |
20120194787 | Image Projection Apparatus - An image projector has a light source emitting blue, green, and red illumination light, a digital micromirror device forming blue, green, and red images, and a projection system enlarging the images, and fulfills the formula FP≦1/(2·sin {sin | 08-02-2012 |
20120229776 | IMAGE DISPLAY DEVICE HAVING A SCREEN WITH A FLUORESCENT REGION - An image display device having a screen having a fluorescent region including a fluorescent material; a light irradiation system, including a first light source outputting excitation light exciting the fluorescent material; a second light source outputting visible light; a scanning unit scanning with a light beam output from each of the first light source and the second light source on the screen; and an excitation light wavelength band reflector reflecting light in a wavelength band of the excitation light toward the screen, and formed on an output side of a light beam from the light irradiation system with respect to the screen. The visible light output from the second light source is diffused by the screen, while the excitation light output from the first light source develops a color different from that of the visible light by being projected in the fluorescent region. | 09-13-2012 |
20120242960 | ILLUMINATION DEVICE AND DISPLAY APPARATUS - Provided are an illumination device and a display apparatus capable of reducing generation of an interference pattern, while achieving downsizing and enhancing light use efficiency. An illumination device includes: a light source section that includes a laser light source; an optical device disposed on a light path through which laser light from the laser light source travels; an optical member that outputs illumination light; and a driving section that displaces a relative position between the optical device and the optical member to vary at least one of an incidence position and an incidence angle, in an incidence surface of the optical member, of the laser light. | 09-27-2012 |
20120249971 | PROJECTION APPARATUS - A projection apparatus including a light source, a light valve, a light uniforming device, and a first curved-surface reflection device is provided. The light source provides an illumination beam. The light valve is disposed on a transmission path of the illumination beam for converting the illumination beam into an image beam. The light valve has an active surface that substantially has a rectangular contour. The light uniforming device is disposed on the transmission path of the illumination beam and between the light source and the light valve. The first curved-surface reflection device is disposed on the transmission path of the illumination beam and between the light source and the light valve for reflecting the illumination beam to the light valve. A curvature of the first curved-surface reflection device along a first direction is not equal to a curvature of the first curved-surface reflection device along a second direction. | 10-04-2012 |
20120249972 | LIGHT SOURCE DEVICE AND PROJECTOR - Alight source device includes: light sources arranged in a plane; collimator lenses disposed in the vicinities of corresponding each of the light sources, each of the collimator lenses collimating a light beam emitted from the corresponding light source, and a holder that holds the light sources and the collimator lenses. The holder holds the light sources and the collimator lenses so that optical axes of the collimator lenses are respectively shifted parallel to optical axes of the light sources by shift lengths that are set so that light beams emitted from the light sources via the collimator lenses are focused on a certain region of an illumination subject body. The light beams emitted from the light sources are refracted by the collimator lenses and focused on the certain region. | 10-04-2012 |
20120262677 | LIGHT SOURCE UNIT AND PROJECTOR - There is provided a light source unit comprising an excitation light shining device for emitting excitation light, a luminescent plate having a luminescent light emitting area on a base material and adapted to emit a luminescent light of a predetermined wavelength band by excitation light from the excitation shining device, two types of light source devices for emitting light of wavelength bands different from that of the light from the luminescent plate, a light guiding optical system for guiding the light from the luminescent plate and the rays from the light sources to a predetermined plane, and a light source control device for controlling the emission from the excitation light shining device and the light sources, wherein a synthetic light or a single-color light are emitted by controlling the emissions from the excitation light shining device and the light sources by the light source control device. | 10-18-2012 |
20120262678 | PROJECTOR APPARATUS USING PULSE-DRIVEN LIGHT SOURCES OF DIFFERENT COLORS - A projector apparatus includes a light source configured to emit light beams of a plurality of color components, emissions of the light beams being controlled individually, a projection unit configured to form images respectively corresponding to the color components using the light beams from the light source for each frame and to sequentially project the images, a driving unit configured to drive the light source so that the light beams are emitted as light pulses having respectively predetermined pulse widths for a period in which the projection unit projects each of the images, a detector configured to detect deterioration levels of the light source respectively for the color components, and a controller configured to control the pulse widths of the light beams emitted from the light source based on the deterioration levels. | 10-18-2012 |
20120274908 | HYBRID HIGH PRESSURE MERCURY ARC LAMP-LASER LIGHT PRODUCTION SYSTEM - A light production system for a projector is provided. The light production system comprises: at least one high pressure mercury arc lamp; at least one red laser; at least one green laser; and an integrator for receiving and combining light from the at least one high pressure mercury arc lamp, red light from the at least one red laser and green light from the at least one green laser, the integrator comprising an output enabled to emit combined light into illumination relay optics of the projector. | 11-01-2012 |
20120274909 | Beam Combiner for a Multicolor Laser Display - A beam combiner is for a multicolor laser display having an optical light source which has at least two semiconductor lasers, in which the beam combiner has a lens arranged in a beam path which is formed by beams emitted from the at least two semiconductor lasers, the lens is a diffractive optical element acting as the lens, the diffractive optical element has a plurality of optical axes, which are offset in a lateral direction with respect to one another, for various wavelengths of the semiconductor lasers, and the plurality of optical axes are offset in the lateral direction relative to one another such that an optical axis for one wavelength is in each case collinear with an emission direction of the semiconductor laser which emits this wavelength. | 11-01-2012 |
20120281186 | LASER PROJECTION SYSTEM - A laser projection system includes a laser module, a red, a green, and a blue fluorescent member, three collimators, a prism, and a scan system lens. The laser module emits laser beam of single wavelength. The red, green, and blue fluorescent members are excited by the laser beam from the laser module to emit red beam, green beam, and blue beam respectively. The collimators are on paths of the red, green, and blue beams respectively to collimate them. The prism reflects the collimated red, green, and blue beams to project them onto an imaging surface through the scan system lens. | 11-08-2012 |
20120293774 | PROJECTOR LENS SYSTEM AND IMAGE DISPLAY SYSTEM USING SAME - In a projector lens system including at least three lens elements and telecentric on a side of an optical modulator, two of the lens elements located on outer most ends of the projector lens system facing conjugate points of the projector lens system consist of plastic lenses, and an aperture stop of the projector lens system is located between the two outer most lens elements while at least one of the lens elements other than the two outer most lens elements most adjacent to the aperture stop consists of a glass lens. Thereby, the cost and weight of the projector lens system can be reduced while achieving the required optical properties. | 11-22-2012 |
20120300177 | PROJECTOR AND REFLECTOR THEREOF - A reflector applied in a projector including a projection control circuit, a light source unit, a beam combiner, and a lens is disclosed. The reflector includes a transparent electrode layer, an electrophoresis layer and a pixel electrode layer. The electrophoresis layer includes a plurality of micro cups, each micro cup contains suspension therein and a plurality of charged particles. The pixel electrode layer includes a plurality of pixel electrodes corresponding to the micro cups. The projection control circuit provides voltages between each pixel electrode and the transparent electrode layer to drive the charged particles to migrate. When the charged particles arrive at the transparent electrode layer, the lights from the light source unit are reflected by the charged particles to the beam combiner to be combined into an image to be transmitted to the lens to project an image. | 11-29-2012 |
20120300178 | Lighting Device and Projection-Type Display Apparatus Including Lighting Device - A lighting device configured to output light of predetermined color includes: a plurality of solid-state light sources including at least a first solid-state light source and a second solid-state light source; a drive section configured to drive each of the plurality of solid-state light sources individually; a first phosphor for excitation by first emission light emitted from the first solid-state light source; and a second phosphor for excitation by second emission light emitted from the second solid-state light source, and first fluorescence and second fluorescence are of different color. | 11-29-2012 |
20120307211 | DEFLECTION DEVICE FOR A PROJECTION APPARATUS, PROJECTION APPARATUS FOR PROJECTING AN IMAGE AND METHOD FOR CONTROLLING A DEFLECTION APPARATUS FOR A PROJECTION APPARATUS - The invention relates to a deflection device for a projection apparatus for projecting Lissajous figures onto an observation field which is made to deflect a light beam about at least one first and one second deflection axis for generating Lissajous figures having a deflection unit for producing oscillations about the deflection axes and having a control apparatus for producing control signals for the deflection unit having a first and second control frequency which substantially corresponds to the resonant frequencies of the deflection unit, wherein the deflection unit has a quality factor of >3,000 and the control apparatus includes a feedback loop which is configured to regulate the first and/or second control frequencies in dependence on a measured phasing of the oscillations of the deflection unit so that the maximum amplitude of the oscillations remains in the resonant range of the deflection unit. The invention further relates to a projection apparatus having such a deflection device as well as to a method for controlling a corresponding deflection device. | 12-06-2012 |
20120327371 | LASER LIGHT SOURCE APPARATUS - Provided is a laser light source apparatus capable of maintaining a favorable level of laser output and inhibiting a margin for optical axis adjustment required for other optical elements. The present invention includes: a semiconductor laser emitting excitation laser light; a laser medium excited by the excitation laser light and emitting infrared laser light; a wavelength conversion element converting a wavelength of the infrared laser light and emitting harmonic laser light; a concave mirror having a concave surface opposing the conversion element; and a mirror supporter supporting the concave mirror. The mirror supporter has a mouth that transmits laser light from the conversion element toward the concave mirror, and a contacting surface orthogonally intersecting an optical axis of the laser light from the conversion element and contacting the concave surface side of the concave mirror. | 12-27-2012 |
20120327372 | PROJECTION SYSTEM AND PROJECTOR INCLUDING THE SAME - An object-side lens group has different power factors between the vertical and horizontal directions of a liquid crystal panel, and a projection system as a whole therefore has different focal lengths between the vertical and horizontal directions and hence different magnification factors between the vertical and horizontal directions, whereby the aspect ratio of an image on the liquid crystal panel can be set at a value different from the aspect ratio of an image projected on a screen. That is, the projection system can convert the aspect ratio, which is the ratio of the width to the height of an image. When the distance between a diaphragm and an extreme end surface of the object-side lens group on the screen side satisfies a predetermined condition, at least a certain degree of telecentricity can be provided both in the vertical and horizontal directions. | 12-27-2012 |
20120327373 | SCAN-TYPE IMAGE DISPLAY DEVICE - The present invention provides a scan-type image display device. In the scan-type image display device, laser light sources respectively generate light beams of green, red and blue, which in turn are combined by dichroic mirrors to generate a first beam and a second beam. A deflecting mirror device two-dimensionally scans the first and second beams under the rotation of a deflecting mirror thereof. The outgoing directions of the first and second beams have an angular difference relative to the vertical direction of a screen, and an interval between the first and second laser beams is set to be larger than an aperture diameter defined by laser safety standards. | 12-27-2012 |
20120327374 | ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS - An illumination apparatus that emits first illumination light, second illumination light and third illumination light, the illumination apparatus comprising: a first light source that emits excitation light; a light emitting body that emits the first illumination light by using the excitation light emitted from the first light source; a second light source that emits the second illumination light; a third light source that emits the third illumination light; and a combining unit configured to combine the first illumination light, the second illumination light, and the third illumination light, wherein an optical path length of the second illumination light from the second light source to the combining unit is equal to an optical path length of the third illumination light from the third light source to the combining unit. | 12-27-2012 |
20120327375 | ILLUMINATION DEVICE AND PROJECTION DISPLAY DEVICE USING THE SAME - An illumination device includes a light source that is configured to emit diffused light, and a plurality of light guiding bodies configured such that the light emitted by light source is entered from one end surface and the light is exited from other end surface. End surface of each light guiding body is arranged into a concave shape, and end surface is arranged into a planar shape. | 12-27-2012 |
20130003023 | DIGITAL LIGHTING PROCESS PROJECTION DEVICE - A digital lighting process (DLP) projection device is provided. The DLP projection device includes a laser, a digital micromirror device (DMD), a projection lens, and a lens array. The laser emits laser light. The DMD receives the laser light emitted from the laser. The DMD includes a plurality of micromirrors arranged in an array, each of which reflects the laser light. The projection lens receives the laser light reflected from the micromirror, and projects the received laser light. The lens array is arranged between the laser and the DMD, and makes the laser light emitted from the laser uniform. | 01-03-2013 |
20130010265 | Despeckling devices and methods - Illuminating coherent or partially coherent light may be directed over an optical fiber and may be despeckled by vibrating the optical fiber or by increasing the number of modes and modal dispersion. An exemplary embodiment is directed to an optical fiber attached to a vibrating device operable to vibrate the optical fiber above a threshold frequency. Another exemplary embodiment is directed to an optical fiber configured to have a refractive index profile operable to increase the number of modes and modal dispersion. | 01-10-2013 |
20130021580 | Systems and Methods of LED Color Overlap - The disclosed systems and methods emphasize driving LEDs in series and in parallel with the same LED driver chip and a single inductor. For creating overlap, the systems and methods of LED color overlap disclosed herein take advantage of the fact that green and blue LEDs have the same voltage. Thus, green and blue LEDs can be driven in parallel as needed. LED suppliers can screen parts for sufficiently close voltage matching between green and blue LEDs. This is especially true when using green LED die based on a blue die with a green phosphor. Cyan may be produced by driving a green LED and a blue LED in parallel. White may produced by driving a green LED and a blue LED in parallel and a red LED in series with this green and blue parallel pair. | 01-24-2013 |
20130021581 | LIGHT SOURCE UNIT, ILLUMINATOR, AND DISPLAY - An illuminator and a display capable of achieving miniaturization are provided with use of a plurality of light sources emitting light with two or more kinds of wavelengths. In the light source unit | 01-24-2013 |
20130021582 | ILLUMINATING DEVICE, PROJECTING DEVICE, AND METHOD FOR CONTROLLING PROJECTING DEVICE - An illuminating device for emitting light onto a light modulating element that forms an image in accordance with a modulation signal and irradiates a target to be illuminated with light, the illuminating device includes a substrate on which equal to or more than two phosphors that emit light with exciting light are formed in a band-like form along a predetermined direction, equal to or more than two light collecting units that are arranged for the respective equal to or more than two phosphors, and collect light components emitted from the respective equal to or more than two phosphors, and a driving unit that drives the substrate in the predetermined direction. | 01-24-2013 |
20130027670 | PROJECTOR - A projector includes a light source, a first light separation optical system adapted to separate light emitted from the light source into first light and second light, a second light separation optical system adapted to separate the first light into third light and fourth light, separate the second light into fifth light and sixth light, and emit the third light, the fourth light, the fifth light, and the six light in directions intersecting with a plane including a light axis of the light emitted from the light source and a light axis of the first light, and a light modulation element which the third light, the fourth light, the fifth light, and the sixth light enter. | 01-31-2013 |
20130027671 | ROTARY WHEEL, LIGHT SOURCE UNIT, PROJECTOR AND ROTARY WHEEL FABRICATION METHOD - There is provided a circular disc-shaped rotary wheel comprising a luminescent light emitting area in which a luminescent material is provided along a circumferential edge of the circular disc shape, an annular step portion which is formed at a different level from a reference plane which is a surface where the luminescent light emitting area is formed, and a balance correction material which is placed at the annular step portion, wherein the balance correction material is placed at the annular step portion so as to even a rotational balance when the rotary wheel is rotated. | 01-31-2013 |
20130033681 | PROJECTOR - A projector includes a light source, a light collection optical system adapted to collect light emitted from the light source, and a light modulation panel adapted to modulate the light collected by the light collection optical system, the light collection optical system includes a color separation optical system adapted to separate the light emitted from the light source into a plurality of types of colored light, and a reflecting curved surface is disposed in at least a light path of the colored light with the longest light path length between the light source and the light modulation panel out of the plurality of types of colored light. | 02-07-2013 |
20130044295 | PROJECTOR WITH OFFSET BETWEEN PROJECTION OPTICAL SYSTEM AND DISPLAY UNIT - A projector for projecting out lights forming an image on an external screen includes at least one light source configured to output a light; a display unit having a plurality of pixel elements and configured to form an image by controlling the pixel elements according to a driving signal; an illumination optical system having at least one lens and mirror arranged on a first optical axis, and configured to output the light output from the light source to the display unit through the mirror; and a projection optical system having at least one lens arranged on a second optical axis intersecting the first optical axis, and configured to externally output the light output from the display unit. A preset offset is provided between the second optical axis of the projection optical system and the central axis of the display unit. | 02-21-2013 |
20130057833 | ILLUMINATION OPTICAL SYSTEM AND A PROJECTOR USING THE SAME - The present invention seeks to realize an illumination optical system that has low etendues, a longer operating life and a higher brightness. The illumination optical system comprises: a laser light source that generates an excitation light; a fluorescent substance that generates a fluorescent light in response to the excitation light, a light tunnel that outputs the excitation light input at one end thereof to the fluorescent substance from the other end thereof, and that outputs the fluorescent light generated by the fluorescent substance from the one end thereof; and an optical element that is placed within a light path between the laser light source and the light tunnel, and that reflects the excitation light, but allows the fluorescent light to pass therethrough. | 03-07-2013 |
20130063703 | SPATIAL LIGHT MODULATION DEVICE AND PROJECTION DISPLAY - A spatial light modulation device includes: a plurality of pixel circuits provided in correspondence to intersections of scan lines and signal lines; and floating light-blocking layers provided in correspondence to the pixel circuits. Each of the pixel circuits includes a thin film transistor (TFT) device including a lightly doped drain (LDD) region, and each of the floating light-blocking layers is disposed in a region opposed to at least the LDD region, and is disposed closer to the LDD region than the signal line. | 03-14-2013 |
20130063704 | METHOD AND APPARATUS OF WHITE BALANCE ADJUSTMENT - A white balance adjustment method and apparatus for a single DLP projector system is disclosed. The projection system includes a solid state light source device, a sync signal generator, and a controller. The light source device generates an output which is a repeating color sequence of at least two primary color lights. The sync signal generator generates a synchronization signal representing a timing of the color sequence of the output light. The controller calculates drive current values corresponding to each of the two primary colors based on a target white balance and measured color properties of the output light, and supplies a modulated drive current to the light source device. The modulated drive current is synchronized to the sync signal and has the calculated drive current values. As a result, a white light having the target white balance is output. | 03-14-2013 |
20130063705 | PROJECTOR - A projector includes a plurality of light source boxes ( | 03-14-2013 |
20130070205 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system includes a first light source, a first rotation wheel, a first phosphor element, and a light combining element. The first light source is capable of emitting a first color beam. The first rotation wheel is disposed on a transmission path of the first color beam and includes a first transmissive region and a first reflective region. The first transmissive region is capable of allowing the first color beam to pass through so as to form a first color transmissive beam. The first reflective region is capable of reflecting the first color beam to form a first color reflective beam. One of the first color transmissive and reflective beams excites the first phosphor element to form a second color beam. The light combining element combines the second color beam and a beam originating from the other one of the first color transmissive and reflective beams. | 03-21-2013 |
20130070206 | LASER SOURCE MODULE AND SCANNING IMAGE DISPLAY DEVICE EQUIPPED WITH SUCH MODULE - In a laser source module aligning laser beams from laser sources for three colors, red, green, and blue on a single combined beam optical axis, decreasing relative displacements of beam spots of three colors, occurring due to thermal deformation by temperature rise, is achieved by a laser source module including plural laser sources, each incorporating a laser having a laser chip installed on a heat sink and a lens converting a light radiated from the laser into a laser beam, and a beam combining unit aligning the laser beams from the laser sources on a single combined beam optical axis, wherein the lasers in at least two or more ones of the laser sources are arranged so that their laser beams will be decentered toward a same direction on the combined beam optical axis upon displacement of an emission point of the laser chip away from the heat sink. | 03-21-2013 |
20130070207 | INCOHERENCE DEVICE AND OPTICAL APPARATUS USING SAME - An optical member includes: a total reflection mirror | 03-21-2013 |
20130070208 | PROJECTION DISPLAY DEVICE - A projection display device includes light sources having light-emitting elements for emitting lights in R, G, B colors, temperature sensors for the respective colors disposed near the light sources in the respective colors, light sensors for the respective colors disposed near the light sources in the respective colors for detecting light leakages from the light sources in the respective colors, cooling means for cooling the light sources in the respective colors, light modulators employing three panels of liquid crystal devices, a projection optical system, an amount-of-light controller for maintaining a predetermined ratio of the amounts of lights emitted from the light sources in the respective colors, and cooling controller | 03-21-2013 |
20130077054 | PROJECTOR AND DISPLAY APPARATUS HAVING THE SAME - The projector according to an exemplary embodiment includes an optical system which forms, expands, and projects the image, and includes at least one light source; a light source dissipation unit for dissipating heat generated by the light source; a plurality of circuit boards for operating the projector; an intake unit having an intake opening where external air is received; an exhaust unit having an exhaust opening where the received air is expelled; and a flow path dividing unit which divides a cooling flow path formed between the intake opening and the exhaust opening into an upper cooling flow path and a lower cooling flow path, wherein the light source dissipation unit is placed on the upper cooling flow path and at least one of the plurality of circuit boards is placed on the lower cooling flow path. | 03-28-2013 |
20130077055 | PHOSPHOR DEVICE AND ILLUMINATION SYSTEM AND PROJECTION APPARATUS WITH THE SAME - A phosphor device of an illumination system is provided. The illumination system emits a first waveband light and has an optical path. The phosphor device includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. After the first waveband light is received by the first phosphor agent, the first waveband light is converted into a third waveband light, and the third waveband light is directed to the optical path, so that the third waveband light is separated into at least two color lights along the optical path. | 03-28-2013 |
20130077056 | PROJECTION DISPLAY APPARATUS - A projection display apparatus includes a light source unit having an excitation light source that emits excitation light, a rotating body, a plurality of imagers, and a projection unit. The rotating body has a rotating surface provided with a light emitting body that emits emission light in response to the excitation light. A separation optical element separates main component light with a predetermined wavelength, included in emission light, into a first optical path, and separates remaining component light, other than the main component light, included in the emission light, into a second optical path. | 03-28-2013 |
20130077057 | PROJECTION-TYPE FOOTAGE DISPLAY DEVICE - A laser beam generated by a laser light source is reflected by a light beam scanning device and irradiated onto a hologram recording medium. On the hologram recording medium, an image of a scatter plate is recorded as a hologram by using reference light that converges on a scanning origin. The light beam scanning device bends the laser beam at the scanning origin and irradiates the laser beam onto the hologram recording medium. At this time, scanning is carried out by changing a bending mode of the laser beam with time so that an irradiation position of the bent laser beam on the hologram recording medium changes with time. Regardless of an irradiation position of the beam, diffracted light from the hologram recording medium produces a reproduction image of the scatter plate on the spatial light modulator. The modulated image of the spatial light modulator is projected onto a screen by a projection optical system. | 03-28-2013 |
20130083294 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system is provided, including a blue incoherent light source, a coherent light source, a phosphor module and a beam combining unit. The blue incoherent light source is capable of emitting a blue incoherent light beam. The coherent light source is capable of emitting a coherent light beam. The phosphor module has a first color phosphor zone and a second color phosphor zone. The first color phosphor zone and the second color phosphor zone move into a transmission path of the coherent light beam in turn, to convert the coherent light beam to a first color light beam and a second color light beam respectively. The beam combining unit is disposed on transmission paths of the blue incoherent light beam, the first color light beam and the second color light beam. A projection apparatus is also provided. | 04-04-2013 |
20130083295 | LIGHT SOURCE APPARATUS AND PROJECTION APPARATUS - A light source unit includes a red light source, a first blue-light source, a fluorescent material, a second blue-light source and an optical system. The red light source emits light in a red wavelength range. The first, blue-light source emits light in a first blue-wavelength range. The fluorescent material receives the light in the first blue-wavelength range and emits light in a green wavelength range. The second blue-light source emits light in a second blue-wavelength range whose wavelengths are longer than those in the first blue-wavelength range. An optical system guides the light emitted from the red light source, the light emitted from the second blue-light source, and the light emitted from the fluorescent material, along a unique optical path. | 04-04-2013 |
20130083296 | PHOSPHOR DEVICE, ILLUMINATION APPARATUS AND PROJECTOR APPARATUS - A phosphor device contains phosphor particles for emitting light beams, is shaped like a pyramid or cone and includes first and second faces opposed to each other and having different areas. The first face and the inclined faces have reflection layers configured to reflect light beams emitted from the phosphor particles. The second face a reflection preventing film and is an input face for excitation light and also an output face for the light beams. A first film is provided on the first face and parts of the incline faces, allows passage of excitation light and reflects light beams toward the second face. | 04-04-2013 |
20130083297 | LIGHT SOURCE UNIT AND PROJECTOR - There is provided a light source unit comprising a first and second light sources, a luminescent light emitting device having a light emitting plate, a light source control device controlling the illumination of the light sources and driving of the light emitting plate, and a light guiding optical system guiding light from the light sources and luminescent light from the light emitting plate so that optical axes coincide to be directed in the same direction, wherein the light emitting plate includes a first area with a luminescent material layer on a reflection layer, a second area transmitting light from the light sources while diffusing it and a third area with a luminescent material layer on a dichroic layer, and wherein the light emitting plate includes a drive motor positioning repeatedly sequentially the first, second and third areas in an optical axis position of light from the light sources. | 04-04-2013 |
20130088689 | LIGHT SOURCE MODULE AND PROJECTION APPARATUS - A light source module including a first light-emitting device, a light emitting wheel, a second light-emitting device, and a light combination device is provided. The first light-emitting device provides an exciting beam. The light emitting wheel is disposed on a transmission path of the exciting beam and has a first light conversion area. The exciting beam obliquely irradiates on the first light conversion area and is converted into a first color beam. The second light-emitting device provides a second color beam. Herein, colors of the first color beam and the second color beam are different. The light combination device is disposed on the transmission paths of the first color beam and the second color beam. The first color beam is reflected to the light combination device by the light emitting wheel and the light combination device combines the first color beam and the second color beam. | 04-11-2013 |
20130088690 | LIGHT SOURCE MODULE AND PROJECTOR USING THE SAME - A light source module and a projector using the same are provided. The light source module includes a monochromatic light source emitting a monochromatic light, a rotating wheel having a light transmitting area and a wavelength transforming area, a filter wheel rotating at a same rotation speed with the rotating wheel, and a dichroic mirror disposed between the rotating wheel and the filter wheel. The wavelength transforming area is coated with a first wavelength transforming material capable of transforming the first color light into a second color light. The filter wheel has a first color filter area and a second color filter area respectively corresponding to the light transmitting area and the wavelength transforming area. The dichroic mirror reflects the first color light to the rotating wheel and allows the second color light to transmit therethrough. | 04-11-2013 |
20130094001 | PROJECTOR, PROJECTION CONTROL METHOD, AND STORAGE MEDIUM STORING PROGRAM - In a projector, a controller sets a start timing and an end timing of a color transitional period which includes the color switch timing in a center of the color transitional period, and sets one of the start timing and the end timing to coincide with a light source switch timing at which the color of the light emitted by the light source unit switches. A projection drive unit controls the display drive of the display element based on the start timing and the end timing. | 04-18-2013 |
20130100417 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system includes a coherent light source, a phosphor switching module, a beam combining unit and a diffusion switching module. The coherent light source emits a coherent light beam. The phosphor switching module includes a light passing section and a first phosphor reflecting section. The light passing section and first phosphor reflecting section are switched into a transmission path of the coherent light beam by turns. The first phosphor reflecting section converts and reflects the coherent light beam into a first color beam. The beam combining unit combines the coherent light beam passing through the light passing section and the first color light beam. The diffusion switching module includes a light diffusion section and a first light permeable section to be switched into the transmission paths of the coherent light beam and the first color light beam by turns. A projection apparatus is also disclosed. | 04-25-2013 |
20130100418 | PROJECTION DISPLAY DEVICE - A projection display device includes a projection part which enlarges and projects the light flux modulated by an imager onto a projection plane; an opening which is formed in a main body cabinet and through which the light flux outputted from the projection part is passed; and a cover which is mounted in the opening and through which the light flux is transmitted. A light incident surface of the cover has such a curved shape as to set an incident angle of each principal ray transmitted through the cover small, as compared with an arrangement, in which the light incident surface has a flat shape. A light output surface of the cover has such a curved shape as to set an output angle of each principal ray transmitted through the cover small, as compared with an arrangement, in which the light output surface has a flat shape. | 04-25-2013 |
20130100419 | BEAM PROJECTOR WITH EQUALIZATION LENS - A projector for projecting light forming an image on an external screen to outside of the projector includes a display panel provided with a plurality of pixel elements, and configured to form an image by controlling the pixel elements according to a driving signal, an illumination optical system provided with an equalization lens and a mirror arranged on a first optical axis, and configured to output light penetrating the equalization lens to the display panel through the mirror, and a projection optical system provided with at least one lens arranged on a second optical axis, and configured to output light reflected from the display panel to the outside, wherein an alignment axis of the equalization lens forms an angle of inclination with the second optical axis. | 04-25-2013 |
20130100420 | SPECTRAL FILTERING OF PHOSPHOR COLOR WHEELS - A projection light source has a source of laser light of a first color. A first member has first and second phosphor material segments respectively configured to emit light of second and third colors when illuminated by the laser light of the first color. A second member has first and second dichroic filter segments respectively configured to pass the light of the second and third colors emitted by the first and second phosphor material segments, while blocking light of the others of the first, second and third colors. Relative placements of the first and second members are synchronized to periodically align the first member with the laser light source and the second member with the first member, so that the first dichroic filter segment will pass the second color along a path at first time intervals when the second color is emitted by the first phosphor material and the second dichroic filter segment will pass the third color along at least a same portion of the path at second time intervals when the third color is emitted by the second phosphor material. | 04-25-2013 |
20130107221 | LIGHT EMITTING MODULE AND DISPLAY DEVICE | 05-02-2013 |
20130107222 | LIGHT SOURCE DEVICE AND PROJECTOR | 05-02-2013 |
20130107223 | PROJECTOR AND CONTROL METHOD THEREOF | 05-02-2013 |
20130107224 | Optical Unit | 05-02-2013 |
20130107225 | LIGHT SOURCE UNIT THAT INCLUDES A LUMINESCENT MATERIAL LAYER, A PRIMARY LIGHT SOURCE THAT EMITS LIGHT TO EXCITE THE LUMINESCENT MATERIAL LAYER, AND AN OPTICAL SYSTEM INCLUDING A PLURALITY OF MIRRORS, AND PROJECTOR | 05-02-2013 |
20130107226 | PROJECTION SYSTEM COMPRISING A SOLID STATE LIGHT SOURCE AND A LUMINSECENT MATERIAL | 05-02-2013 |
20130114044 | LIGHT SOURCE DEVICE AND PROJECTOR - A light source device includes: a light emitting plate that has a plurality of segment regions including a transmissive portion that transmits light and a reflective portion on which a fluorescent substance layer; a light source that irradiates the fluorescent substance layer of the light emitting plate with the excitation light; a dichroic mirror that is disposed between the light source and the light emitting plate to transmit the excitation light and reflect fluorescent light from fluorescent substances of the fluorescent substance layer; and an optical device that condenses the excitation light transmitted by the transmissive portion of the light emitting plate and the fluorescent light reflected by the dichroic mirror on a single optical path to form a condensed light and radiate the condensed light toward the same direction. | 05-09-2013 |
20130128232 | DISPLAY APPARATUS, METHOD AND LIGHT SOURCE - In accordance with the invention, a display apparatus comprising a light source is provided, said light source comprising at least one superluminescent light emitting diode (SLED), the apparatus further comprising at least one light modulating device arranged in a beam path of a light beam emitted by said light source and operable to emit influenced light upon incidence of said light beam, the light modulating device being operatively connected to an electronic control, the display apparatus further comprising a projection optics arranged in a beam path of said influenced light. | 05-23-2013 |
20130135592 | LIGHT SOURCE APPARATUS AND PROJECTION DISPLAY APPARATUS - A light source apparatus, which includes a light source unit that emits exciting light, a light emitting body that emits reference image light in response to the exciting light, and a light collecting member that collects the exciting light on the light emitting body, comprising: an adjustment configuration that adjusts an intensity distribution of the exciting light so that intensity centers of the exciting light are provided on the light emitting body as a plurality of points. | 05-30-2013 |
20130135593 | ILLUMINATION OPTICAL SYSTEM AND PROJECTOR USING THE SAME - An illumination optical system includes: a light source that generates excitation light; a fluorescent body that generates fluorescent light by irradiation with the excitation light and that is disposed in a region wider than the irradiation spot of the excitation light; a plate in which the fluorescent body is disposed; and a driving mechanism that moves the plate so that the irradiation spot of the excitation light can intermittently move over the fluorescent body. | 05-30-2013 |
20130141699 | IMAGE PROJECTION DEVICE AND COLOR CORRECTION METHOD - An image projection device includes a light source that emits a plurality of colored lights and a projection section that modulates each colored light emitted by the light source according to image data and projects an image onto a projection surface, a storage section that stores projection surface information indicating a spectral reflectance of the projection surface, and a correction section that determines, when the image data is received, a correction value for correcting a color shift in the image on the projection surface using the projection surface information, and corrects an intensity value of a colored light emitted by the light source by controlling the light source according to the correction value. | 06-06-2013 |
20130155379 | Projection Device and Method for Operating a Projection Device - A projection device ( | 06-20-2013 |
20130169938 | COLOR WHEEL WITH FAN BLADE - A color wheel unit of a projector includes a motor and a color wheel. The color wheel is synchronized with the rotating motion of the motor. The color wheel has a light-irradiated area and a non-irradiated area. The light-irradiated area is positioned in an outer margin of the color wheel and at least a phosphor layer is located on the light-irradiated area. The non-irradiated area is positioned at the inner portion of the color chip. A number of fan blades are located in the non-irradiated area. The fan blades are synchronized with the rotating motion of the color wheel that generates air flow to enhance heat dissipation efficiency of the color wheel. | 07-04-2013 |
20130169939 | LIGHT SOURCE SYSTEM AND PROJECTOR - A light source system includes a luminescent wheel, a driving unit for rotating the luminescent wheel, a light source for shining excitation light on to a luminescent material layer of the luminescent wheel, a light shining control unit for controlling an illumination timing of the light source, a light shining time integrating unit for integrating individual excitation light shining times to a plurality of predetermined divided areas of the luminescent wheel, an integrated light shining time storage unit for storing the individual light shining times to the predetermined divided areas, and a light shining range control unit for equalizing times over which excitation light is shone on to the plurality of predetermined divided areas of the luminescent wheel based on the individual excitation light shining times to the predetermined divided areas. | 07-04-2013 |
20130169940 | ILLUMINATION DEVICE, PROJECTION DEVICE, AND PROJECTION-TYPE IMAGE DISPLAY DEVICE - Provided is an illumination device which illuminates an illuminated zone with a plurality of coherent light beams having mutually different wavelength ranges, so that it is possible to allow speckles to be inconspicuous. A illumination device is configured to include an optical element including a hologram recording medium and an irradiation device which illuminates the optical element with a plurality of coherent light beams having mutually different wavelength ranges so as to allow a first and second coherent light beams having different wavelength ranges to scan the hologram recording medium of the optical element. The first coherent light beams incident on respective positions of the hologram recording medium are allowed to reproduce an image superimposed on an illuminated zone, and the second coherent light beams incident on the respective positions of the hologram recording medium are allowed to reproduce an image superimposed on the illuminated zone. | 07-04-2013 |
20130176541 | OPTICAL COMPONENT, LASER LIGHT SOURCE APPARATUS AND IMAGE DISPLAY APPARATUS EACH INCLUDING THE OPTICAL COMPONENT AND MANUFACTURING METHODS THEREFOR - A laser light source apparatus is provided that can prevent an output mirror from breaking and can simplify adjustment of the attachment position of the output mirror. The laser light source apparatus includes: a semiconductor laser that outputs an excitation laser beam; a solid-state laser element that is excited by the excitation laser beam, to output a fundamental laser beam; and an output mirror that forms a resonator together with the solid-state laser element. The output mirror includes: a base part formed of a glass substrate; a convex part that is formed in the base part by dry etching; and a groove that is formed in the base part around the convex part while the dry etching proceeds. The convex part has a convex surface on which a film is formed. | 07-11-2013 |
20130188154 | Image Projection Apparatus - An image projection apparatus has a corrector that corrects angle distribution of illumination light such that, let, in a comparison in traveling direction between, of diffracted light resulting from light rays with the wavelengths λ | 07-25-2013 |
20130188155 | Projection Lens System Having Variable Magnification - A projection lens system is constructed as a zoom lens system which is for use with a laser light source and performs magnification variation by moving at least a lens group along the optical axis, and the projection lens system fulfills the following conditional formula: (|AC(B | 07-25-2013 |
20130194551 | ILLUMINATION DEVICE, PROJECTING DEVICE AND LIGHTING DEVICE - An illumination device includes a wavelength conversion material layer with a first surface, which includes a wavelength conversion material and a scattering material; a light guide device located adjacent the wavelength conversion material layer on a side facing its first surface for directing an excitation light onto the first surface of the wavelength conversion material layer, and for directing a mixed light emitted from the first surface, which includes converted light and remaining excitation light not absorbed by the wavelength conversion material layer, into a light exit port. In this illumination device, the light guide device can collect the excitation light reflected by the wavelength conversion material layer effectively, which insures that adding scattering materials into the wavelength conversion material layer doesn't have a significant impact on the luminous efficiency of the illumination device, and resolves the conflict between color uniformity and luminous efficiency of the device. | 08-01-2013 |
20130194552 | LIGHTING DEVICE AND PROJECTION-TYPE DISPLAY DEVICE USING SAME - A lighting device includes excitation light sources, phosphor wheel that emits green fluorescent light, a collimator lens that converts the emitted fluorescent light into parallel luminous flux, a red laser, a blue laser, a dichroic mirror that combines the excitation light supplied from the excitation light sources and the light supplied from the red laser, and a cross dichroic prism that combines the fluorescent light emitted from phosphor wheel, the light supplied from the red laser and the light supplied from the blue laser. The cross dichroic prism supplies the excitation light supplied from the excitation light sources to the collimator lens and the collimator lens condenses the incident excitation light on the phosphor wheel. | 08-01-2013 |
20130201456 | WAVELENGTH CONVERSION ELEMENT, LIGHT SOURCE DEVICE, AND PROJECTOR - A wavelength conversion element includes a substrate, and a fluorescent material layer disposed on the substrate. The volume concentration of the fluorescent material in the fluorescent material layer is equal to or higher than 15 vol %. | 08-08-2013 |
20130215394 | Underwater Image Projection Display System and Lighting Control System And Device - Underwater image projection system submerged in body of water and projecting an image within said body of water is provided having an enclosure with lens assembly. Projection element has light source projecting an image within the body of water from projection element with at least one light source steering and further image steering device moving the image. System controller is coupled to and controls the projected light source, the projected light source steering device and the further image steering device. User inputs image data to the controller through the user input device and the controller interprets the image data into a set of image control variables and executes control of the projected light source and image source and further image steering device in coordination and projects the image through the projection element to project from underwater a static or animated image on an underwater surface of the body of water. | 08-22-2013 |
20130222772 | LIGHT SOURCE APPARATUS, LIGHTING APPARATUS, AND PROJECTION-TYPE DISPLAY APPARATUS - A light source apparatus includes excitation light sources; a phosphor unit; a dichroic mirror that reflects excitation light supplied from the excitation light sources toward the phosphor unit and that transmits fluorescent light emitted from the phosphor unit; and a collimator lens that is provided between the dichroic mirror and the phosphor unit and whose focal distance varies according to the wavelength. The phosphor unit is arranged at a position determined by the focal distance of the collimator lens for the fluorescent wavelength. The collimator lens includes low-dispersion lenses and a high-dispersion lens. | 08-29-2013 |
20130229630 | PROJECTOR AND CONTROL METHOD - A projector includes a screen which has color stripes that are periodically arranged and that generate visible light corresponding to incident light. A laser light source section emits a light beam. A laser scanning section scans the light beam on a region of the color stripes arranged on the screen. A light detection section detects feedback light radiated from the screen corresponding to the light beam. A control section adjusts a light emission timing and a light emission period of the laser light source section based on a detection result of the light detection section and causes the laser light source section to emit the light beam such that light pulses enter the individual color stripes. | 09-05-2013 |
20130229631 | PROJECTOR - A projector can prevent a flicker from being caused by rotation of a rotating phosphor plate. The projector includes a solid-state light source that emits excitation light, a rotating phosphor plate that converts the excitation light into phosphor light, a liquid-crystal light modulating device that modulates the light from the rotating phosphor plate, a projection optical system that projects the modulated light onto a screen, and a control device that controls the solid-state light source and the rotating phosphor plate so as to satisfy any one of a conditional expression A=B, a conditional expression A=2B, and a conditional expression |A−B| is greater than or equal to 20 and |A−2B| is greater than or equal to 20, where A represents a pulse width modulation control frequency in hertz of the solid-state light source and B represents a rotation frequency in hertz of the rotating phosphor plate. | 09-05-2013 |
20130235352 | ILLUMINATION SYSTEM FOR PROJECTION DEVICE - An illumination system for a projection device is provided. The illumination system comprises a light emitting element, a color wheel and at least one actuator. The light emitting element is adapted to generate a first wave band light, while the color wheel has a wheel disk and a plurality of wave band transforming areas formed on the wheel disk. The at least one actuator is connected to the color wheel to move the color wheel to a selected position so that the first wave band light is projected onto one of the wave band transforming areas to excite a plurality of selected wave band lights. | 09-12-2013 |
20130235353 | ILLUMINATING UNIT AND DISPLAY - An illuminating unit includes: a light source section including a laser light source; a first uniformizing optical member on which light from the light source section is incident; and a second uniformizing optical member including a plurality of first unit cells and a plurality of second unit cells and on which light from the first uniformizing optical member is incident. The first unit cells are arranged on a light incidence surface of the second uniformizing optical member and each have an anisotropic shape with a major-axis direction as a first direction and a minor-axis direction as a second direction, and the second unit cells are arranged on a light emission surface of the second uniformizing optical member and each have a shape protruding along both the first direction and the second direction. | 09-12-2013 |
20130242265 | OPTICAL MODULE AND SCANNING IMAGE DISPLAY DEVICE - In an optical module that aligns light beams from lasers of the three colors of red, green, and blue along a single combined beam optical axis, when the ambient temperature range is wider than the guaranteed operating range of the lasers, relative positional displacements of beam spots of the three colors that are generated due to a displacement or a deformation resulting from a temperature range at a heating time or a cooling time are suppressed. The optical module, which has mounted thereon a plurality of lasers, and emits light beams from the plurality of lasers, includes a cooling device that cools the entire optical module via a case on which the optical module is mounted, and heating devices that are provided on respective laser holders and individually heat the respective lasers. | 09-19-2013 |
20130242266 | PROJECTION APPARATUS, COMPUTER READABLE STORAGE MEDIUM AND CONTROL METHOD OF PROJECTION APPARATUS - A projection apparatus includes a time-sharing light emitting device, a display device, a projection optical system, an illuminance sensor and a lighting determination unit. The time-sharing light emitting device successively emits color lights one by one. The display device modulates the color lights to form an image. The projection optical system projects the image. The illuminance sensor converts illuminance of the color lights into an electric signal which is an output of the illuminance sensor. The lighting determination unit compares the output with a first threshold value, and operates the time-sharing light emitting device in response to the output being more than the first threshold value, and stops the time-sharing light emitting device in response to the output being equal to or less than the first threshold value. | 09-19-2013 |
20130242267 | LIGHT SOURCE UNIT AND PROJECTOR - A light source unit includes an excitation light source, a plurality of light sources at least one of which emits a light ray in a wavelength band different from that of the excitation light source, a plurality of collimator lenses which make light rays from the light sources into parallel ones, a luminous light emitting device which receives the light ray from the excitation light source to emit a luminous light ray, a microlens array which diffuses the light rays from the light sources to a predetermined range and distributes the luminance thereof uniformly within the predetermined range and a collective lens which collects the light rays from the light sources which are emitted from the microlens array, and the light sources are disposed so that the light rays from the plurality of light sources intersect the light ray from the excitation light source at right angles. | 09-19-2013 |
20130242268 | LIGHTING OPTICAL SYSTEM AND PROJECTION DISPLAY DEVICE INCLUDING THE SAME - A lighting optical system includes a first light source for emitting first color light and second color light, and a second light source for emitting third color light. The first light source includes a semiconductor laser element that emits a linearly polarized laser beam, an excitation light generation unit for spatially and temporally separating the laser beam emitted from the semiconductor laser element to generate first excitation light and second excitation light, the excitation light generation unit including an active diffraction element that transmits the incident laser beam in two different directions to separate it into the first excitation light and the second excitation light having an output direction different from that of the first excitation light, a first phosphor that is excited by the first excitation light to emit first color light, and a second phosphor that is excited by the second excitation light to emit second color light. | 09-19-2013 |
20130250248 | FLUORESCENT DEVICE, IRRADIATION APPARATUS, AND PROJECTOR APPARATUS - A fluorescent device includes a fluorescent material. The fluorescent material radiates emission light. The fluorescent material is irradiated with excitation light. The fluorescent material has a convex-concave shape. The convex-concave shape is provided on a surface different from an irradiation surface. The irradiation surface is irradiated with the excitation light. | 09-26-2013 |
20130258292 | OPTICAL MODULE FOR USE IN A PROJECTOR APPARATUS AND PROJECTOR APPARATUS - An optical module includes a curved reflecting component, a first filtering component, a second filtering component and a rolling component. The curved reflecting component has a focus, a transmissive portion, a first reflecting portion and a second reflecting portion. The rolling component includes a first transforming portion and a second transforming portion. The first waveband light is transmitted into the transmissive portion and is then transformed into a second waveband light via the first transforming portion. The second waveband light is subsequently transformed into a first emergent light. The first waveband light is transmitted into the transmissive portion and is then transformed into the second waveband light via the second transforming portion. The second waveband light is subsequently transformed into a second emergent light. | 10-03-2013 |
20130258293 | Phase Modulation Module and Projector Comprising the Same - An optical phase modulation module and a projector comprising the same are provided. The optical phase modulation module comprises a transparent thin film with an electro-optic effect, a plurality of first upper electrodes, a plurality of second upper electrodes and a plurality of lower electrodes. The transparent thin film with the electro-optic effect has a top surface and a bottom surface. The first upper electrodes are formed on the top surface. The second upper electrodes are formed on the top surface and arranged alternately with the first upper electrodes. The lower electrodes are formed on the bottom surface. A first voltage difference exists between the first upper electrodes and the bottom electrodes, while a second voltage difference exists between the second upper electrodes and the bottom electrodes. Two different electric fields are produced within the transparent thin film with the electro-optic effect by the first voltage difference and the second voltage difference respectively. | 10-03-2013 |
20130265552 | DISPLAY APPARATUS INCLUDING A WAVELENGTH CONVERSION LAYER - A display device is disclosed. Particularly, a display device including a wavelength conversion layer is disclosed. The display device includes a first light source including a substrate, a light emitting device disposed on the substrate and emitting light having a first wavelength band, and a wavelength conversion layer disposed on the light emitting device, at least partially absorbing the light having a first wavelength band, converting the absorbed light into a second wavelength band, and including at least two phosphors emitting substantially the same color. | 10-10-2013 |
20130271731 | Compact edge illuminated diffractive display - There is provided a projection display device comprising: a light source, an SBG device comprising a multiplicity of separately SBG elements sandwich between transparent substrate to which transparent electrodes have been applied. The substrates function as a light guide. A least one transparent electrode comprises plurality of independently switchable transparent electrodes elements, each electrode element substantially overlaying a unique SBG element. Each SBG element encodes image information to be projected on an image surface. Light coupled into the light guide, undergoes total internal reflection until diffracted out to the light guide by an activated SBG element. The SBG diffracts light out of the light guide to form an image region on an image surface when subjected to an applied voltage via said transparent electrodes. | 10-17-2013 |
20130271732 | LASER LIGHT SOURCE PROJECTOR - A laser light source projector includes a plurality of light sources of color groups each including a plurality of laser light sources. The laser light source projector projects an image by driving the laser light sources in each of the color groups. In response to change of the light output characteristics of one or a plurality of laser light sources in an arbitrary color group, light output from a remaining laser light source in the arbitrary color group is adjusted, thereby keeping white balance constant. | 10-17-2013 |
20130271733 | Triple Filters Projector - A triple white light sources and triple filters projector includes a light guiding device; a triple filters formed with a red, green and blue filters set three sides of the light guiding device; a triple white light sources set said three sides of the light guiding device to generate white light beams with sequence, wherein the triple filters located between said triple white light sources and the three sides of the light guiding device, and the white light beams become red, green and blue after passing the triple white light sources; a digital mirror device panel having a plurality of mirror elements each being controlled so as to reflect light fed from said triple white light sources, an image signal being fed into the digital mirror device panel; and lens positioned in the reflected light path from the digital mirror device panel to project image. | 10-17-2013 |
20130278902 | LIGHT SOURCE MODULE AND PROJECTION APPARATUS - A light source module and a projection apparatus are provided. The light source module includes a light-emitting element, an optical path switching element, a wavelength conversion element, a first reflection element, and a first beam splitter element. The optical path switching element switches a first color beam between a first optical path and a second optical path. When the first color beam is switched to the first optical path, the first color beam is propagated to the wavelength conversion element to excite a first and second wavelength conversion layers on the wavelength conversion element to produce a second color beam and a third color beam. When the first color beam is switched to the second optical path, the first color beam is propagated to the first reflection element. | 10-24-2013 |
20130278903 | Short Pulse Despeckling - An apparatus and method for despeckling that includes a pulsed laser with a pulse width between 1 ps and 10 ns and stimulated Raman scattering light formed in an optical fiber. The stimulated Raman scattering light may be used to form a projected digital image. A second pulsed laser with a wavelength at least 2 nm different may be included and stimulated Raman scattering light formed in a second optical fiber may be combined with the stimulated Raman scattering light formed in the first optical fiber. | 10-24-2013 |
20130286359 | LIGHT SOURCE DEVICE AND PROJECTION TYPE DISPLAY APPARATUS EMPLOYING SAME LIGHT SOURCE DEVICE - A light source device and a projection type display apparatus include: an excitation light source; and a fluorescence light-emitting plate including a fluorescence light-emitting section arranged opposite to the excitation light source and a reflection section containing titanium oxide located on the opposite side of the excitation light source as viewed from the side of the fluorescence light-emitting section and arranged such as to be joined to the fluorescence light-emitting section. Then, excitation light from the excitation light source is projected onto the fluorescence light-emitting section so that fluorescence emission light is emitted from the fluorescence light-emitting section and reflected fluorescence light is emitted from the reflection section. | 10-31-2013 |
20130293850 | PROJECTOR HAVING LIGHT SOURCE UNIT INCLUDING EXCITATION LIGHT SOURCE, OPTICAL WHEEL, LIGHT EMITTING LIGHT SOURCE, AND CONTROLLER - A light source unit includes an optical wheel having a plurality of segment areas, the segment areas including at least two luminescent material layers having different characteristics and a transmission portion provided in a circumferential direction. The light source unit further includes a rotation driving unit for driving to rotate the optical wheel, an excitation light source for shining light onto the optical wheel, a light emitting element, and a light guiding optical system for collecting a light beam from the optical wheel and a light beam from the light emitting element to a same optical path. The excitation light source is selectively turned on to illuminate the transmission portion or the at least two luminescent material layers, and the light emitting light source is turned on for a period of time during which the excitation light source does not shine the excitation light. | 11-07-2013 |
20130301012 | LIGHT EMITTING DEVICE, SUPER-LUMINESCENT DIODE, AND PROJECTOR - A light emitting device includes a substrate, a laminated body formed by stacking a first cladding layer, a first active layer, a second cladding layer, a third cladding layer, a second active layer, and a fourth cladding layer on the substrate in this order, a first electrode connected to the first cladding layer, a second electrode connected to the second cladding layer and the third cladding layer, and a third electrode connected to the fourth cladding layer, the first active layer generates first light using the first electrode and the second electrode, the second active layer generates second light using the second electrode and the third electrode, and a side surface of the first active layer is provided with an emitting section for emitting the first light, and a side surface of the second active layer is provided with an emitting section for emitting the second light. | 11-14-2013 |
20130314671 | DIGITAL LIGHT PROCESSING PROJECTOR USING LASER AND LIGHT EMITTING DIODE - A digital light processing projector includes a light emitting diode (LED), a laser, a rotatable optical element, a reflector, a first filter, a second filter, a digital micro-mirror device (DMD), and a projection lens. The LED and the laser respectively emit a first and second homogeneous lights. The rotatable optical element converts a first portion of the second homogeneous light to a third homogeneous light, reflects the third homogeneous light, and transmits a second portion of the second homogeneous light. The reflector reflects the third homogeneous light. The first filter transmits the first homogeneous light, and reflects the second portion to the second filter. The second filter transmits the second portion and the first homogeneous light, and reflects the third homogeneous light to the DMD. The DMD modulates the first, second and third homogeneous lights to obtain optical images. The projection lens projects the optical images on a screen. | 11-28-2013 |
20130314672 | LIGHT SOURCE UNIT INCLUDING A LASER AS A LIGHT SOURCE AND A LIGHT EMITTING WHEEL WITH A DIFFUSION LAYER OPPOSITE TO THE LASER - A projector includes a light source unit, a light guiding device, a display device, a projection side optical system, and a projector control unit. The light source unit includes a light source which emits laser light in the wavelength band of blue, a light emitting wheel disposed on an optical axis of the light source, and a wheel motor for driving to rotate the light emitting wheel. The light emitting wheel is formed of a circular substrate having a diffusion layer on a predetermined surface thereof, the diffusion layer being made up of minute irregularities which are formed directly on a surface of the circular substrate. | 11-28-2013 |
20130321777 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system including a plurality of first light emitting elements, a wavelength-converting unit, a first reflector and a second reflector is provided. The first light emitting elements respectively emit a plurality of exciting beams. The wavelength-converting unit is disposed on transmission paths of the exciting beams and converts the exciting beams into a first color light beam. The first reflector is disposed on the transmission paths of the exciting beams, and disposed between the first light emitting elements and the wavelength-converting unit. The first reflector has a hole. The exciting beams from the first light emitting elements are reflected by the first reflector. The second reflector reflects the exciting beams, reflected by the first reflector, to the wavelength-converting unit. The exciting beam reflected by the second reflector is transmitted to the wavelength-converting unit through the hole. A projection apparatus is also provided. | 12-05-2013 |
20130329193 | PROJECTION APPARATUS - In a projection apparatus, a polygon mirror transforms light from a light source into a two-dimensional luminous flux. A liquid crystal panel performs spatial light modulation of the luminous flux incident from the polygon mirror, based on image data. An image adjusting circuit controls the amount of luminous flux for each predetermined control unit based on the gradation distribution of the image data. | 12-12-2013 |
20130335711 | Laser Device and Method for Producing Same - A method for producing a laser device having a laser configured in order to emit a laser beam, a lens ( | 12-19-2013 |
20140002801 | ILLUMINATION UNIT, PROJECTION DISPLAY UNIT, AND DIRECT-VIEW DISPLAY UNIT | 01-02-2014 |
20140016102 | DYNAMIC DIFFRACTIVE IMAGE PROJECTION DEVICE - A dynamic diffractive image projection device includes a first laser light source, a second laser light source, a third laser light source, a first dynamic diffractive optical element, a second dynamic diffractive optical element, a third dynamic diffractive optical element, a controller, and a combiner. The first, second, and third color beams provided by the first, second, and third laser light sources respectively pass through the first, second, third dynamic diffractive optical elements, which are controlled by the controller to perform real-time signal modulation for producing dynamic diffractive grating distributions, so as to produce a pixel corresponding to a specific position of an image frame. The combiner combines the color beams at the corresponding specific position. The controller performs a fast switching and playing on the first, second and third dynamic diffractive optical elements so as to project a two-dimensional full-color image frame by scanning. | 01-16-2014 |
20140022512 | PHOSPHOR-BASED LAMPS FOR PROJECTION DISPLAY - A phosphor-based lamp includes a phosphor material and an excitation source, which may be a laser or an LED, or both. Preferably, the lamp includes a recycling collar to reflect and recycle high angle light to increase brightness. Preferably, when the excitation source is a laser, a beam splitter redirects the laser beam to direct the laser beam through the recycling collar aperture onto the phosphor material. Light emitted by the phosphor material which exits the aperture passes through the beam splitter as the output of the lamp. Alternatively, lenses are used to redirect the laser beam around the recycling collar towards the phosphor material. Preferably, a plurality of excitation lasers are disposed around the recycling collar and aimed either to direct their outputs onto the phosphor material or toward an opposing wall, where the outputs are reflected onto the phosphor material. Such lamp may be used as part of a projection system. In one embodiment, the phosphor material is contained on the color wheel. | 01-23-2014 |
20140022513 | PROJECTOR AND LIGHT EMISSION CONTROL METHOD IN THE PROJECTOR - A projector including: a projecting unit including a plurality of light sources and a modulating unit configured to modulate lights emitted by the plurality of light sources, the projecting unit projecting modulated light modulated by the modulating unit; an optical system configured to optically change a projection state of the modulated light projected from the projecting unit; an optical-system adjusting unit configured to change a state of the optical system; a storing unit configured to store states of the optical system and adjustment values of light emission amounts of the respective light sources for adjusting white balance of the modulated light in association with each other; and a light-emission-amount adjusting unit configured to adjust the light emission amounts of the respective light sources on the basis of the adjustment values corresponding to the states of the optical system. | 01-23-2014 |
20140022514 | PROJECTOR AND METHOD FOR CONTROLLING PROJECTOR - A projector including a first light source, a second light source that emits light having a color different from the first light source, a light modulator that modulates the light emitted from each of the first and the second light sources, and a controller that controls a first operation state in which the first and the second light sources are driven based on time division driving to perform image display and a second operation state in which the first and the second light sources are driven based on time division driving to perform illumination, wherein in the second operation state, a switching frequency at which the first and the second light sources are switched from one to the other is higher than a switching frequency at which the first and the second light sources are switched from one to the other in the first operation state. | 01-23-2014 |
20140028984 | LIGHT SOURCE APPARATUS AND PROJECTION DISPLAY APPARATUS - A light source apparatus for illuminating an image formation element, includes: a substrate; a driving source that rotates the substrate; a groove formed on a surface of the substrate so as to surround a rotational axis of the substrate; a phosphor layer formed in the groove; a laser light source that emits laser light delivered to the phosphor layer; and an optical system that guides first light emitted from the phosphor layer excited by the laser light, to the image formation element. | 01-30-2014 |
20140028985 | LASER PROJECTOR WITH REDUCED SPECKLE - The present invention provides a light source for a projector system, and method of operating the light source as well as a projector system that provides: | 01-30-2014 |
20140036235 | LASER PROJECTION SYSTEM WITH SECURITY PROTECTION MECHANISM - A laser projection system comprising a laser light and a human body detection module is disclosed. The laser light source emits a laser light. The human body detection module detects a reflective light of the laser light irradiated on an object. The human body detection module determines whether the object is a human according to a relationship between several reflectivity indexes of the reflective light. If the relationship corresponds to predefined situation, the human body detection module reduces a laser output intensity of the laser light. | 02-06-2014 |
20140036236 | PROJECTION SYSTEM - A projection system includes a projector body including a projection lens that projects image light, a color wheel located in a position downstream of the projection lens, a lens moving section that moves the projection lens from an initial position in at least one of an X direction and a Y direction, a movement amount detection unit that detects the amount of movement of the projection lens and the position to which the projection lens has been moved, an adjustment section that changes the position and the attitude of the color wheel, and an adjustment controller that controls the adjustment section in accordance with a detection result from the movement amount detection unit to adjust at least one of the position and the attitude of the color wheel. | 02-06-2014 |
20140036237 | OPTICAL DEVICE, PROJECTOR, AND METHOD OF MANUFACTURING OPTICAL DEVICE - An optical device includes a plurality of light modulators modulating a plurality of incident color lights with respect to each color light, a light combining optical unit having a plurality of light incident surfaces that the plurality of modulated color lights respectively enter, and combining the plurality of entering color lights, a holding part holding the light modulator, and a supporting part loosely fitting and supporting the holding part, and disposed in a location facing the light incident surface of the light combining optical unit, wherein the supporting part has an extending part extending in a direction away from the light incident surface, and a locking part having a first slope is provided in an end part in an extension direction of the extending part. | 02-06-2014 |
20140055755 | DEVICE AND METHOD FOR REDUCING SPECKLE IN PROJECTED IMAGES - An image projector includes a light source for displaying light and a diffusing screen coupled to an in-plane vibrator. The diffusing screen is positioned to receive the display light from the light source and generate phase-modulated display light. The image projector also includes a collimating element positioned to receive the phase-modulated display light. The image projector further includes a display panel positioned to receive the phase-modulated display light after being collimated by the collimating element. The display panel is configured to generate a projectable image using the phase-modulated display light. | 02-27-2014 |
20140055756 | OPTICAL MODULE AND SCAN-TYPE IMAGE PROJECTION DISPLAY DEVICE - An optical module including a plurality of laser diodes and outputting optical beams emitted from the laser diodes includes a radiator unit for radiating heat and a case enclosing the optical module. The case has a first attachment surface to which a red laser diode is attached, a second attachment surface to which a green laser diode is attached, and a corner part where the first and second attachment surfaces intersect with each other. The optical module has a first attachment part, for connecting the case to the radiator unit, in the vicinity of the corner part. | 02-27-2014 |
20140063468 | PROJECTION APPARATUS, PROJECTION METHOD, AND STORAGE MEDIUM HAVING PROGRAM STORED THEREON, WHICH PROVIDE HIGH-QUALITY IMAGE BY EFFECTIVELY USING SPOKE PERIOD - A projection apparatus includes a spoke setting unit configured to set each change timing of changing the plurality of colors, and set spoke periods generated at the each change timing, a light source drive unit configured to drive the light source unit, based on the change timings and the spoke periods set by the spoke setting unit, a detection unit configured to obtain information indicating each light amount of the light for each of the plurality of colors, which are emitted from the projection unit during the spoke periods, and a light source controller configured to control the light source unit so as to adjust a color balance of color mixtures in the spoke periods to a predetermined balance based on the information obtained in the detection. | 03-06-2014 |
20140071405 | PROJECTION DEVICE AND METHOD FOR DECREASING STRAY LIGHT - A projection device having an image beam and an off-state light is provided, which includes a camera module, a condensing element, a digital micromirror device (DMD) and a shading element, wherein the DMD allows the image beam to enter the camera module, and the shading element is configured between the DMD and the condensing element to block the off-state light. | 03-13-2014 |
20140071406 | Low-speckle Light Sources and Displays Employing Multimode Optical Fiber - An apparatus comprising a laser and/or LED light source(s), multimode optical fiber(s), light coupler(s), an optional spatial light modulator(s), and an optional projection lens(es). The light source has a 1/e half-width emission bandwidth. The light coupler couples the light source to the multimode optical fiber(s) such that objective speckle contrast is reduced. The multimode optical fiber(s) may pass light from the coupler to an optional spatial light modulator. The spatial light modulator may modulate the light to form an image. The projection lens may transfer light onto an image plane or to illuminate objects. The objective speckle contrast at the end of the multimode fiber in combination with the projection lens diameter (if employed) and wavelength diversity may result in viewed images at the viewer's eye, or other detector, exhibiting speckle contrast that may be 1% or less. | 03-13-2014 |
20140071407 | ILLUMINATION LIGHT SOURCE DEVICE, PROJECTION DEVICE INCLUDING THE ILLUMINATION LIGHT SOURCE DEVICE AND METHOD TO CONTROL THE PROJECTION DEVICE - An illumination light source device includes a reflection-transmission wheel provided on a light-path from an excitation light source and having a transmission region that transmits an excitation light and a reflection region reflecting the excitation light, a fluorescent wheel provided on at least one of the reflection light-path and the transmission light-path and having a fluorescent body emitting fluorescence when excited by the excitation light, and a control section turning-on the excitation light source while the boundary of the transmission region and the reflection region traverses the light-path, in order to provide an illumination light source device capable of preventing a deterioration of the fluorescent body, whereby improving a color reproducibility by use of the color mixture occurred at the boundary region between the transmission light-path and the reflection light-path effectively and improving the brightness of image. | 03-13-2014 |
20140071408 | ILLUMINATION LIGHT SOURCE SYSTEM, PROJECTOR HAVING THE SAME, AND METHOD OF CONTROLLING PROJECTOR - An illumination light source system includes an excitation light source; a reflection/transmission member having a transmission area which transmits excitation light from the excitation light source and a reflection area which reflects the excitation light, the transmission area and the reflection area sequentially crossing an emission light path of the excitation light source; a fluorescent member provided in at least one of a reflection light path of the excitation light reflected by the reflection area and a transmission light path of the excitation light transmitted through the transmission area, the fluorescent member being provided with a phosphor which generates a color different from that of the excitation light by excitation with the excitation light; and a controller which reduces a light volume of the excitation light source while a boundary area between the transmission area and the reflection area of the reflection/transmission member is located on the emission light path. | 03-13-2014 |
20140078472 | LIGHT SOURCE UNIT AND PROJECTOR - The invention includes an excitation light source, a light distribution adjusting member on which excitation light from the excitation light source is incident, and a luminescent material which emits luminous light of a different wavelength from that of the excitation light by the excitation light which passes through the light distribution adjusting member being shone on thereto, wherein the excitation light source is disposed so that the excitation light is incident on a light incident surface of the light distribution adjusting member at a predetermined angle. | 03-20-2014 |
20140085610 | Virtual Segmentation of Interactive Scanning Laser Projector Display - Regions are defined in projected content to create a virtually segmented display. When reflections are received from objects within a defined region, the reflections are recognized and passed to a user interface circuit. When reflections are received from objects outside a defined region, the reflections are gated and not recognized. | 03-27-2014 |
20140098349 | LIGHT SOURCE UNIT AND PROJECTION DISPLAY SYSTEM USING SAME - The projection display system has a light source unit where a first light source and a second light source respectively emitting a first and second wavelength or wavelength range of light are juxtapositionally arranged; a third light source emitting a third wavelength or wavelength range of light; an optical combiner device for combining the three wavelengths or wavelength ranges of light from the light sources; an optical device for averaging distributions of the wavelengths or wavelength ranges of light; an image display device for receiving the light transmitted through the optical device and forming image light responsive to a video signal; and a projector lens for projecting the image light onto a screen. At least two of the optical axes of the first, second, and third wavelengths or wavelength ranges of light which are incident on the optical device are not coincident with each other. | 04-10-2014 |
20140111775 | LIGHT SOURCE APPARATUS AND IMAGE DISPLAY APPARATUS - A light source apparatus includes: at least one solid-state light source configured to output light in a predetermined wavelength range; a first optical system including at least one aspherical surface configured to convert a light flux from the solid-state light source into a substantially parallel light flux; an output unit including at least one light emitter that is excited by the light and emits visible light with a wavelength longer than that of the light, the output unit being configured to output light containing the light and the visible light; and a second optical system including at least one concave reflecting surface and being configured to reflect the light on the concave reflecting surface, the light coming from the solid-state light source and being converted into the substantially parallel light flux by the first optical system, to collect the light to the light emitter of the output unit. | 04-24-2014 |
20140111776 | Phosphor Layer, Component, Corresponding Light Source, Projection System and Corresponding Manufacturing Method - A phosphor layer comprising a phosphor plate adhesively formed by a phosphor powder and an adhesive agent. The phosphor plate has a front side and a back side. The phosphor layer also have particles which are fixedly connected to the front and/or back side of the phosphor plate. Also provided in the present invention are a phosphor component, a corresponding light source, a projection system, and a method for manufacturing the phosphor layer. The phosphor component prevents adhesion between the phosphor plate and substrates thereof in high temperature conditions. | 04-24-2014 |
20140125956 | LIGHT SOURCE DEVICE AND PROJECTION-TYPE DISPLAY DEVICE - A light source device includes: a laser light source; a circular substrate which has fluorescent body that emits light by using light from the laser light source as excitation light; a wheel motor which rotates circular substrate; a dichroic prism which transmits the light from fluorescent body while reflecting the light from the laser light source; a diffusion plate which diffuses the light from the laser light source; and a plate spring which interconnects diffusion plate and wheel motor. | 05-08-2014 |
20140132934 | 6-color multi-channel image engine - A 6-color multi-channel image engine comprises a spatial light modulation system (SLMS) configured to output two spatially modulated light beams, a short wavelength beam (SWL) with the three wavelength bands of the first and second blue and of the first green (B1,B2,G1) and a long wavelength beam (LWL) with the three longer wavelength bands of the second green and of the first and second red (G2,R1,R2) is disclosed. The engine further comprises an adder (ADDER). This adder is configured to combine the short wavelength beam (SWL) and the long wavelength beam (LWL) into a 6-color output beam (OUT). | 05-15-2014 |
20140139810 | LIGHT SOURCE DEVICE AND PROJECTOR - A light source section is provided with a plurality of light sources. A pitch of the light sources in a first direction and a pitch in a second direction are regulated in accordance with a specific cross-sectional shape of a light beam. | 05-22-2014 |
20140146291 | PROJECTOR - A projector includes a solid-state light source, a diffuser member, an excitation light source, a phosphor, a light modulator, a projection system, a first and a second light blocking members. When the area, viewed in the direction of the optical axis of diffused light, of an opening of the first light blocking member and the area of a portion over which the first light blocking member blocks the diffused light are defined as A | 05-29-2014 |
20140146292 | PROJECTION DISPLAY DEVICE FOR PROJECTING AN INPUT UNIT IMAGE - A projection display device ( | 05-29-2014 |
20140146293 | SOLID-STATE LIGHT SOURCE DEVICE - A solid-state light source device, enabling to build up with using solid-state elements, and having the structure suitable to be applied as a light source for a projection-type display apparatus, comprises a solid-state light source unit | 05-29-2014 |
20140152963 | ALIGNING METHOD AND OPTICAL APPARATUS - An aligning method is provided. The aligning method includes: fixing a plurality of lenses and a beam combining unit in a fixing base; respectively disposing a plurality of light emitting units in a plurality of holders; leaning the holders on the fixing base, and respectively corresponding locations of the light emitting units to locations of the lenses; turning on the light emitting units, and enabling the light beams respectively emitted by the light emitting units to be combined by the beam combining unit after respectively passing through the lenses; and respectively adjusting positions of at least part of the light emitting units by using at least one jig to respectively hold the at least part of the light emitting units until an overlapping degree of the light beams combined by the beam combining unit matches a preset requirement. In addition, an optical apparatus is provided as well. | 06-05-2014 |
20140152964 | ILLUMINATION DEVICE AND PROJECTOR - An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk. | 06-05-2014 |
20140160439 | IMAGE DISPLAY DEVICE - An image display device has a housing, a plurality of support members, and a plurality of light source elements. The support members are attached to the housing. The light source elements are attached to the housing via the support members, respectively. The support members are dimensioned such that the support members have surface areas according to heat generation properties of the light source elements, respectively. | 06-12-2014 |
20140160440 | LIGHT QUANTITY MEASUREMENT APPARATUS AND PROJECTION-TYPE DISPLAY DEVICE EQUIPPED WITH SAME - The light quantity measurement apparatus disclosed herein comprises an optical semiconductor, an amplifier element, a resistor unit, an A/D converter, and a controller. The optical semiconductor receives a plurality of colors of light emitted from a light source in a time division. The amplifier element converts optical current flowing to the optical semiconductor into voltage by receiving the plurality of colors of light. The resistor unit switches the gain for converting the optical current inputted to the amplifier element into voltage, for each of the plurality of colors of light. The A/D converter converts the voltage outputted by the amplifier element from an analog signal into a digital signal. The controller controls the resistor unit so that the output level corresponding to the various colors of light outputted from the A/D converter will remain substantially same level. | 06-12-2014 |
20140168611 | LASER PROJECTION DEVICE - A laser projection device includes a blue laser chip, a red laser chip and a green laser chip and a spectroscope arranged on light paths of laser beams emitted from the laser chips. The laser projection device further includes a substrate. The laser chips are mounted on the substrate. The laser beams emitted from the laser chips are converged by a lens to reach the spectroscope and then reflected by the spectroscope to mix together. | 06-19-2014 |
20140168612 | LASER PROJECTION DEVICE - A laser projection device includes three laser chips, a spectroscope arranged on light paths of laser beams emitted from the three laser chips, and a lens mounted between the laser chips and the spectroscope. The lens includes a main body and a bending part bent from the main body. The main body is on the light paths of two of the laser chips. The bending part is on the light path of another laser chip. The laser beams emitted from the corresponding two laser chips are refracted by the main part of the lens. The laser beams emitted from the corresponding another laser chip are refracted by the bending part. The laser beams emitted from the laser chips are converged by the lens to reach the spectroscope and then reflected by the spectroscope to be mixed together. | 06-19-2014 |
20140168613 | OPTICAL EXCITATION DEVICE, LIGHT SOURCE MODULE, AND PROJECTOR USING THE SAME - An optical excitation device for exciting a laser light source includes a wavelength converter and a moving element. The laser light source emits a first light beam. The wavelength converter includes a wheel, a motor connected to the wheel, and a wavelength converting layer disposed on a light receiving surface of the wheel for converting the first light beam with the first wavelength into a second light beam with a second wavelength. The moving element is connected to the wavelength converter for moving the wavelength converter relative to the laser light source. There is a first reaction area between the laser light source and the wavelength converter when only the motor is operated, there is a second reaction area between the laser light source and the wavelength converter when both the motor and the moving element are operated, and the second reaction area is greater than the first reaction area. | 06-19-2014 |
20140168614 | LIGHT SOURCE DEVICE AND PROJECTOR - A light source device includes a wavelength conversion element adapted to emit a second light in a first wavelength range due to irradiation of a first light, and a wavelength separation element to which the second light is input, and the wavelength separation element generates a third light reduced in light intensity of a component in a second wavelength range among a component in the first wavelength range compared to the second light. | 06-19-2014 |
20140176913 | LASER PROJECTION DEVICE - An exemplary laser projection device includes a substrate, three laser chips mounted on the substrate, and a spectroscope arranged on laser beams paths of the laser chips. Each laser chip is a laser diode. The spectroscope includes a first group of splitters, and a second group of splitters spaced from the first group of splitters. Laser beams emitted from the laser chips are adjusted into the second group of splitters by the first group of splitters. And then, the laser beams adjusted into the second group of splitters are adjusted to be oriented toward the same direction and mixed together to obtain light of a predetermined color. | 06-26-2014 |
20140176914 | Lighting Device Comprising Pump Light Source, Phosphor Arrangement and Filter Arrangement - A lighting device ( | 06-26-2014 |
20140176915 | LIGHT SOURCE UNIT AND PROJECTOR - A light source unit having a luminescent material plate tight sealing construction with a dust-proof measure where a luminescent material plate is sealed tight from a circumference thereof by attaching tightly a luminescent material plate holding metallic plate to a collective lens and a projector having the light source unit are provided. The light source unit has an excitation light source device emitting excitation light and a luminous light emitting device, and the luminous light emitting device includes a luminescent material plate on to which excitation light from the excitation light source device is shone to emit luminous light of a different wavelength from the excitation light, a substrate on which the luminescent material plate is rested, a collective lens covering the luminescent material plate, and a lens holder holding the collective lens, whereby the luminescent material plate is sealed tight by at least the substrate and the collective lens. | 06-26-2014 |
20140185017 | PROJECTOR - A projector includes an area light source, a spatial light modulator, an illumination system that receives light from the area light source and illuminates the spatial light modulator, and a projection lens that forms an image by the light from the spatial light modulator. The area light source includes one of a light emitting region of a light emitting device and an image of the light emitting region, and the illumination system includes a rod integrator, the rod integrator is arranged so that an entrance plane of the rod integrator faces the area light source, and a size of the entrance plane of the rod integrator is smaller than a size of the area light source. | 07-03-2014 |
20140185018 | PROJECTOR - A projector includes an area light source, a spatial light modulator, an illumination system that receives light from the area light source and illuminates the spatial light modulator, and a projection lens that forms an image by the light from the spatial light modulator. The illumination system includes an optical member having a cuboid shape and including an entrance plane and an exit plane, the optical member being arranged so that the entrance plane faces the area light source, and the optical member forming, on the exit plane, an illuminance distribution having a higher illuminance at a peripheral portion than at a central portion. The spatial light modulator is illuminated with the light from the exit plane. | 07-03-2014 |
20140198301 | LIGHT SOURCE APPARATUS AND PROJECTOR - A light source apparatus according to the present invention includes a phosphor wheel having a phosphor disposed in an annular shape on a disk-shaped base material, the phosphor serving to emit fluorescent light from excitation light, thereby forming an excitation light source having a predetermined color, and the phosphor having a discontinuous portion in a part of the annular shape, an excitation light source for emitting the excitation light with which a passage position of the circular phosphor is irradiated with respect to the phosphor wheel to be rotatively driven by the wheel motor, and a controller that controls light emission of the light source and the excitation light source synchronously with a position of the discontinuous portion with respect to an irradiation position of the excitation light. | 07-17-2014 |
20140204345 | PROJECTOR WITH HEAT SINKS AND SINGLE FAN MODULE - An image projector in a case, having a light engine, a circuit board, a heat sink assembly, and a fan assembly, has one or more heat sinks and heat pipes shaped to gather heat from all heat-generating components within the projector and a single air passage to receive the heated air combined from all components, allowing the employment of a single fan module in sucking cool air from the exterior and exhausting heated air through the single air passage. | 07-24-2014 |
20140204346 | PROJECTOR, COLOR WHEEL PROTECTION CIRCUIT, AND COLOR WHEEL PROTECTION METHOD - The invention provides a projector, a color wheel protection circuit, and a color wheel protection method. The projector includes a color wheel, a light source, a controller, and a protection circuit. The light source is controlled by a light source control signal to provide an illumination beam to the color wheel. The controller is used for providing the light source control signal to the light source. The protection circuit includes a resetting signal generator and a logic operator. The resetting signal generator is used for generating a resetting trigger signal according to the rotation speed of the color wheel, and generating a resetting output signal according to the resetting trigger signal. The logic operator is used for receiving the light source control signal and the resetting output signal, and resetting the light source control signal according to the resetting output signal. | 07-24-2014 |
20140211169 | LIGHTING DEVICE AND IMAGE DISPLAY DEVICE - This lighting device comprises a laser light source, a phosphor having a yellow phosphor that is excited by the laser light source, and a color filter on which fluorescent light emitted from the phosphor is incident. The color filter has first and second segments with different transmission spectrums, the first segment transmitting the entire wavelength band of yellow fluorescent light emitted from the yellow phosphor, and the second segment removing the short wavelength component of the yellow fluorescent light. | 07-31-2014 |
20140211170 | ILLUMINATOR AND IMAGE DISPLAY DEVICE - An illuminator | 07-31-2014 |
20140232993 | FIBER SCANNING PROJECTOR - A fiber scanning projector includes a light source comprising a plurality of monochromatic light sources, a modulator providing a modulation signal according to image information to the light source, a scanner scanning a screen with a light emitted from the light source and controlled according to the modulation signal, the scanner including a fiber bundle and an actuator which 2-axis-drives the fiber bundle, and a synchronization controller synchronizing driving of the actuator and driving of the modulator. | 08-21-2014 |
20140247429 | LIGHT SOURCE APPARATUS AND PROJECTOR APPARATUS WITH OPTICAL SYSTEM HAVING REDUCED COLOR IRREGULARITY - A light source apparatus includes an optical plate, a convergence optical system, a transfer optical system and two casting optical systems. The optical plate includes a translucent segment and a fluorescent substance layer. The convergence optical system converges an excitation light to the translucent segment and to the fluorescent substance layer. The transfer optical system transfers a spot of the excitation light to a transfer plane of the optical plate. The first casting optical system projects a light source image of fluorescence, which is formed on the fluorescent substance layer, onto a common casting plane. The second casting optical system which projects the spot of the excitation light onto the common casting plane. Optical path lengths of the two casting optical systems are the same. | 09-04-2014 |
20140253882 | HYBRID LASER EXCITED PHOSPHOR ILLUMINATION APPARATUS AND METHOD - Apparatus and methods are disclosed for generating blue color illumination for use in a projection system. Light from a blue laser light source is reflected off a dichroic filter sequentially onto different color emitting phosphor coated light non-transmissive segments and onto a cyan color emitting phosphor coated light transmissive segment of a rotating color wheel. The different color light and cyan color light emitted by the phosphor back to the filter is selectively transmitted by the filter along a projection path. Blue laser light and cyan color light emitted by the phosphor transmitted through the color wheel is directed along a wraparound optical path back to the filter for reflection along the projection optical path. | 09-11-2014 |
20140268066 | MULTI-COLOUR ILLUMINATION APPARATUS - A light engine is provided for a projection system, comprising a color wheel having a plurality of color phosphor portions; at least two light sources for illuminating the wheel at different locations for generating at least two time-sequenced beams of red, green and blue light, wherein the output beams are highly synchronized and exhibit substantially similar colorimetry, including spectrum and balance of red, green and blue light; and a digital micromirror device for modulating the time-sequenced beams of red, green and blue light to create an image. In another aspect, a light engine is provided for a tiled projection system having at least two projectors, comprising a color wheel having a plurality of color phosphor portions; a light source for generating a beam of light; a beam splitter for splitting the beam of light into at least two highly correlated beams to illuminate the wheel at different locations for generating at least two time-sequenced beams of identical red, green and blue light; and a digital micromirror device in each of the projectors for modulating the highly correlated beams to create a tiled image | 09-18-2014 |
20140268067 | ILLUMINATION DEVICE AND PROJECTOR - A illumination device includes a light source, a diffractive optical element on which light emitted from the light source is made incident, and a superimposing optical system on which diffracted light emitted from the diffractive optical element is made incident. A direction of a principal ray in the center of the diffracted light coincides with an optical axis of the superimposing optical system. Consequently, it is possible to reduce an aberration due to the superimposing optical system and to emit illumination light having a more uniform illuminance distribution. | 09-18-2014 |
20140268068 | LIGHT SOURCE UNIT, LIGHTING APPARATUS AND IMAGE PROJECTION APPARATUS - A light source unit includes a first reflector having a reflection face; a second reflector having a reflection face; a plurality of light sources; and a light condensing optical system to condense light emitted from the plurality of light sources. Light beams emitted from the plurality of light sources are reflected at a first reflection position on the reflection face of the first reflector, and then reflected at a second reflection position on the reflection face of the second reflector. The second reflection position is close to an optical axis of the light condensing optical system compared to the first reflection position. | 09-18-2014 |
20140268069 | LIGHT SOURCE UNIT AND PROJECTOR INCORPORATING THE SAME - A light source unit emitting a light on an optical axis includes a first light emitter to emit a light in a certain wavelength band, a second light emitter to emit a light in a wavelength band different from that of the first light emitter, a third light emitter to emit a light in a wavelength band different from those of the first and second light emitters, a lighting path through which the lights from the first, second, and third light emitters are guided to propagate on the optical axis and into which the light from the third light emitter is joined at a hindmost position in a traveling direction on the optical axis, and an optical adjuster to exert an optical effect on the light from the third light emitter and not to exert an optical effect on the light rays from the first and second light emitters. | 09-18-2014 |
20140285772 | LIGHT SOURCE DEVICE AND DISPLAY DEVICE - There is provided a light source device including a first light source configured to emit light in a first wavelength region, a second light source configured to emit light in a second wavelength region different from the first wavelength region, a wavelength conversion unit including a fluorescent material and configured to emit fluorescent emission light in a different wavelength region upon irradiation with the light in the first wavelength region, and a combining unit that has wavelength selectivity to a specific wavelength region corresponding to the second wavelength region and combines the light in the first wavelength region from the first light source, the light in the second wavelength region from the second light source, and the fluorescent emission light which are incident on the combining unit with one another. | 09-25-2014 |
20140285773 | ILLUMINATION UNIT, PROJECTION DISPLAY UNIT, AND DIRECT VIEW DISPLAY UNIT - An illumination unit includes one or more light sources each including a solid-state light-emitting device configured to emit light from a light emission region including a single or a plurality of light-emitting spots. The solid-state light-emitting device includes a single chip or a plurality of chips each emitting a light beam. Three or more of the light-emitting spots are provided within the whole of one or more light sources, to allow the whole of one or more light sources to emit light beams in two or more wavelength bands different from one another, and the solid-state light emitting device in a first light source which is at least one of the one or more light sources, has a plurality of light-emitting spots which emit light in the same wavelength band. | 09-25-2014 |
20140293234 | LIGHT MODULE AND PROJECTION DEVICE - A light module includes a first light source. The first light source includes a first light-emitting element and a first lens element. The first light-emitting element includes a first light-emitting chip for emitting a first light beam and a wavelength conversion material located on the first light-emitting chip for transferring parts of the first light beam to a second light beam. The first lens element faces the first light-emitting element and is located on a transmission path of the first light beam and a transmission path of the second light beam, and the first lens element includes an optical filter for filtering off the first light beam and being passed by the second light beam. | 10-02-2014 |
20140293235 | PROJECTOR DEVICE AND HEAD-UP DISPLAY DEVICE - A projector device includes a plurality of light source that emits lights of mutually differing colors. The projector device displays a projected image by scanning the lights emitted by the plurality of light sources, and further includes an optical axis misalignment detector that detects a degree of optical axis misalignment among the plurality of light sources, and a correction unit that corrects a timing of the emission of the plurality of light sources to minimize the degree of optical axis misalignment among the plurality of light sources. | 10-02-2014 |
20140293236 | PROJECTOR AND HEAD-UP DISPLAY DEVICE AND A PROJECTOR CONTROL METHOD - A projector includes a light generator that emits a first light and a second light of mutually differing color components, a light position detector disposed to receive light incident in a direction outside of the projection surface and that detects a position of the incident light, a light scanner that projects the image onto the projection surface by scanning the first light and the second light with a first scanning angle, and that directs the first light and the second light to the light position detector by scanning the first light and the second light with a second scanning angle that is larger than the first scanning angle, and an adjustor that adjusts an emission timing of the first light and an emission timing of the second light so as to suppress relative misalignment between the first light and the second light on the projection surface. | 10-02-2014 |
20140293237 | PROJECTOR - A projector includes laser light sources which emit light, a MEMS mirror which operates at specified angles of deflection so as to scan light emitted from the laser light sources over a projection area at a sine-function angular velocity in which a scanning speed in a vicinity of a central portion of the projection area in a horizontal direction is faster than a scanning speed in a vicinity of end portions, and a first lens which is disposed at a position between the MEMS mirror and the projection area and which refracts light scanned by the scanner such that the scanning speed of the light scanned by the MEMS mirror in the vicinity of the central portion of the projection area in the horizontal direction is equal or substantially equal to the scanning speed in the vicinity of the end portions in the horizontal direction. | 10-02-2014 |
20140293238 | PROJECTION IMAGE DISPLAY APPARATUS - A projection image display apparatus capable of maintaining the positional accuracy of an integrator optical system even when subjected to an external force is provided. The projection image display apparatus includes an integrator optical system which converges and uniformizes a light emitted from a light source, a color separating optical system which separates the colors of the light emitted from the integrator optical system, a color synthesizing optical system which synthesizes lights separated by the color separating optical system, a projection optical system which emits the light, which has been synthesized by the color synthesizing optical system, onto a projection surface, a first optical case which fixes and houses the integrator optical system, the color separating optical system, and the color synthesizing optical system at respective predetermined positions, and a second optical case which fixes and houses optical components of the integrator optical system at predetermined positions, and the second optical case is attached to the first optical case. | 10-02-2014 |
20140300870 | IMAGE PROJECTION DEVICE AND INPUT OBJECT DETECTION METHOD - An image projection device includes a projection component, a photodetector, and a determination component. The projection component is configured to project an image by scanning light beams two-dimensionally. The photodetector is configured to detect reflected lights obtained in response to the light beams being reflected by a reflecting object. The determination component is configured to determine whether or not the reflecting object is an input object based on whether or not a difference of light detection positions of the light beams is at least a specific value. The light detection positions are indicative of irradiation positions of the light beams in a projection region of the image, respectively. | 10-09-2014 |
20140307231 | LASER PROJECTION DEVICE - A laser projection device includes a substrate, three laser diodes mounted on the substrate, and a spectroscope located on light paths of the laser diodes. The laser diodes are arranged along an arc-shaped curve. A sector-shaped region is defined by the three laser diodes and two intersected sides of the substrate. The spectroscope is located at the sector-shaped region. Light emitted from the laser diodes is adjusted by the spectroscope to transmit along a common direction and be mixed with each other. | 10-16-2014 |
20140307232 | PROJECTION-TYPE DISPLAY DEVICE AND METHOD FOR CONTROLLING PROJECTION-TYPE DISPLAY DEVICE - There is provided a projection-type display device including an excitation light source configured to emit excitation light, a fluorescent member configured to emit fluorescent light when the excitation light from the excitation light source is condensed, a heat sink connected to the excitation light source, a single air blowing fan configured to cool the heat sink and the fluorescent member together, and an excitation light source control unit configured to control an output of the excitation light source, depending on a luminance level of an external video signal. | 10-16-2014 |
20140313489 | VISIBLE AND INFRARED LIGHT SOURCE FOR ILLUMINATION SYSTEM AND PROJECTION DEVICE COMPRISING THE SAME - An illumination system and a projection device comprising the same are provided. The projection device comprises an image-forming system and the illumination system. The illumination system comprises a first light source device, a second light source device and a first light guiding device. The first light source device generates a visible light, while the second light source device directly generates a substantially pure infrared light. The light guiding device is adapted to guide the visible light and the infrared light to the image-forming system for processing to make the visible light form a visible light image and make the infrared light form an infrared light image. | 10-23-2014 |
20140320825 | MULTI-PROJECTION SYSTEM FOR EXTENDING VISUAL ELEMENT OF MAIN IMAGE - The present invention provides a multi-projection system for extending a visual element of a main image, the system including a main projection surface on which a main image is reproduced and an auxiliary projection surface arranged around the main projection surface, in which a visual element associated with the main image is displayed on the auxiliary projection surface. | 10-30-2014 |
20140327885 | APPARATUS FOR OBTAINING ENHANCED CONTRAST IN PROJECTED IMAGES USING DIGITAL MICROMIRROR DEVICES - A system for projecting digital images of ultraviolet, visible, and infrared scenes in which two or more digital micromirror devices (DMDs) are employed to create projected images which have greater contrast and bit depth than can be achieved with comparable prior art devices. A source DMD creates an image of the digital scene which is used to illuminate a projector DMD, so that the projector DMD is illuminated to an extent proportionate to the corresponding scene brightness, thereby reducing the amount of undesired radiation which would otherwise illuminate the projected scene via scattering, diffraction, and/or spurious reflections from within the projection system. By including dichroic beam-splitters and additional projector DMDs it is possible to project multi-spectral-band images having enhanced contrast and bit depth relative to prior art digital projection systems. | 11-06-2014 |
20140327886 | ILLUMINATION DEVICE AND IMAGE DISPLAY APPARATUS - An illumination device includes: an excitation light source that emits excitation light having a first wavelength; and a fluorescent member that includes a fluorescent substance that, when it is irradiated with the excitation light, emits light having a second wavelength longer than the first wavelength, transmits a part of the excitation light and reflects another part of the excitation light, and a first reflective film provided at a side of the fluorescent substance, which is opposite to an excitation light incidence side, the fluorescent member emitting multiplexed light including an excitation light component reflected from the fluorescent substance and the first reflective film and a light component emitted from the fluorescent substance. | 11-06-2014 |
20140327887 | PROJECTION SYSTEM WITH A PLURALITY OF LIGHT-EMITTING ELEMENTS - A projection system for illuminating a projection surface may include at least one light source formed from a plurality of light-emitting elements and an optical integrator having an entrance opening and an exit opening, into the entrance opening of which the light of each light-emitting element is coupled such that the mixed light of all the light-emitting elements emerges from its exit opening, and an imaging optical unit, which projects the light emerging from the exit opening of each integrator onto the projection surface, wherein an optical element is in each case arranged between the exit opening of each integrator and the imaging optical unit, said optical element shifting the virtual image of the entrance opening along an optical axis of the projection system such that its image generated by the imaging optical unit is not visible on the projection surface. | 11-06-2014 |
20140333901 | Phosphor Wheel and Illumination Device Comprising this Phosphor Wheel and a Pump Light Source - The invention provides an illumination device comprising a pump light source and a phosphor wheel. The phosphor wheel comprises at least two segmented phosphor layers. The front surfaces of the phosphor layers do not form a common plane, but instead a kind of relief in which the surfaces of the phosphor layers extend in different imaginary planes. When the phosphor wheel rotates through a beam waist of the pump. light, in this way the size of the pump light spot and therefore also the power density distribution of the pump light on the respective phosphor layer are adapted. | 11-13-2014 |
20140340649 | LIGHTING DEVICE, PROJECTOR INCLUDING THE SAME, AND LIGHTING METHOD - A lighting device includes a first light source which emits excitation light, a wavelength convertor which generates fluorescence containing at least a first wavelength range and a second wavelength range by excitation with the excitation light, a second light source which emits light containing a third wavelength range different from the first wavelength range and the second wavelength range, an optical path-combining element which combines an optical path for the fluorescence from the wavelength convertor and an optical path for the light from the second light source, so as to guide the combined optical paths to a single emission optical path, and a light separator disposed in the emission optical path, which obtains and emits at least the first wavelength range and the second wavelength range of the fluorescence and at least the third wavelength range of the light from the second light source. | 11-20-2014 |
20140347633 | LASER PROJECTOR - A laser projector includes a light source, a scanner that two-dimensionally scans a target object with light emitted from the light source, a light collection system that collects light from the scanner with a predetermined collection angle to form an intermediate image, and a projection lens that projects the intermediate image on a projection surface, and the collection angle is greater than a divergence angle of the light emitted from the light source. | 11-27-2014 |
20140347634 | MULTI-SPATIAL LIGHT MODULATOR IMAGE DISPLAY PROJECTOR ARCHITECTURES USING SOLID STATE LIGHT SOURCES - A solid state illumination system is provided for image projection. Red, green and blue light is generated using a blue laser light source and phosphor emissions. The red, green and blue light is passed by TIR or TRIR elements of red, green and blue light channels of an X-cube prism structure for separate modulation by different spatial light modulators. The modulated red, green and blue light is passed by the TIR or TRIR elements into the X-cube and combined into a combined modulated RGB image forming light stream for image formation via projection optics onto a target imaging surface. | 11-27-2014 |
20140362349 | LIGHT SOURCE MODULE AND PROJECTION APPARATUS - A light source module including an exciting light source, a wavelength conversion module, and a light combining unit is provided. The exciting light source is capable of providing an exciting light beam. The wavelength conversion module includes at least one wavelength conversion reflecting portion and a wavelength conversion portion which cut into the transmission path of the exciting light beam alternately. When the wavelength conversion portion cuts into the transmission path of the exciting light beam, part of the exciting light beam which passes through the wavelength conversion portion is a first color light beam and another part of the exciting light beam is converted into a second color light beam by the wavelength conversion portion. The color of the second color light beam is different from that of the exciting light beam. A projection apparatus is also provided. | 12-11-2014 |
20140362350 | OPTICAL UNIT, LIGHT SOURCE APPARATUS, AND IMAGE DISPLAY APPARATUS - Provided is an optical unit including: a wheel portion including a wheel in which a light emitter that is excited by light of a predetermined wavelength range and emits visible light having a longer wavelength range than the light of the predetermined wavelength range is provided and a motor that drives the wheel, the wheel portion being configured to emit synthetic light including the light of the predetermined wavelength range and the visible light from the light emitter; a lens portion including at least one lens that collects the synthetic light emitted from the wheel portion and a light emitting surface that emits the collected synthetic light; and a holder portion configured to support the wheel portion and the lens portion as one unit. | 12-11-2014 |
20140375959 | LIGHTING DEVICE AND PROJECTION DEVICE - A lighting device ( | 12-25-2014 |
20140375960 | LIGHT EMITTING DEVICE AND PROJECTOR - A light emitting device includes a first layer that generates light by injection of a current and forms a waveguide of the light, and an electrode that injects the current into the first layer, wherein the waveguide of the light has a belt-like first region and a belt-like second region, the first region has a first part with curvature, the second region has a second part with curvature, the first region and the second region are connected in a reflection part provided on a side surface of the first layer, and a first light output from the first region on a side surface of the first layer as an output surface opposed to the side surface on which the reflection part is provided and a second light output from the second region on the output surface are output in the same direction. | 12-25-2014 |
20140375961 | PHOSPHOR DEVICE AND ILLUMINATION SYSTEM AND PROJECTION APPARATUS WITH THE SAME - A phosphor device of an illumination system is provided. The illumination system emits a first waveband light and has an optical path. The phosphor device includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. After the first waveband light is received by the first phosphor agent, the first waveband light is converted into a third waveband light, and the third waveband light is directed to the optical path, so that the third waveband light is separated into at least two color lights along the optical path. | 12-25-2014 |
20140375962 | Scanning Laser Projector - A scanning projector for projecting an image comprising multiple wavelength signals is disclosed. Embodiments of the present invention include a beam combiner comprising a planar lightwave circuit having a plurality of surface waveguides arranged to define a plurality of input ports, a mixing region, and an output port. Each input port receives a different wavelength signal and provides it to the mixing region. The mixing region combines the plurality of wavelength signals into a single composite output beam that is scanned over a region to create an image in a region. In some embodiments, the projector (1) interrogates image points in the region using a first wavelength signal to determine a measurand and (2) projects an image over the image points of the region using a second wavelength signal, wherein each image point is illuminated with the second wavelength signal based on a measurand at that image point. | 12-25-2014 |
20150015850 | LASER LIGHT SOURCE MODULE FOR PROJECTION SYSTEM - A projection system includes a laser light source module, at least one display module, and a projection lens. The laser light source module includes at least one light source, at least one wavelength conversion element, at least one light detecting unit, and a controller. The laser light source emits a first light beam with a first wavelength. The wavelength conversion element is used for converting the first light beam into a light beam with a wavelength different from the first wavelength. After an optical energy of the light beam outputted from the wavelength conversion element and higher than a systematic etendue is detected by an optical sensor of the laser light source module, at least one of a brightness and a light color of the laser light source module is adjusted or compensated by the controller according to the detecting result. | 01-15-2015 |
20150029466 | LIGHT SOURCE APPARATUS AND PROJECTOR - A light source apparatus includes a light emitting device that has a first light emitting region outputting first excitation light and a second light emitting region outputting second excitation light, a phosphor layer that is so provided that the phosphor layer coincides with the first light emitting region in a plan view and emits fluorescence light, a reflector that is provided on the opposite side of the phosphor layer to the light emitting device, transmits the fluorescence light, and reflects the excitation light, and a light guide section that is disposed on an optical path between the phosphor layer and the reflector, and guides the second excitation light reflected off the reflector such that at least part of the reflected second excitation light enters the phosphor layer. | 01-29-2015 |
20150029467 | LIGHT SOURCE UNIT AND PROJECTOR - A small light source unit is provided which emits lights of the primary colors which are highly bright and which have a high color reproducibility and excitation light, and the light source unit includes a light source module and a light source control module and the light source module has a first light source which emits light having a first wavelength which is used as excitation light which excites a luminescent material, and a second light source which emits light having a second wavelength which is different from the first wavelength but which falls within a range of wavelengths of light of a similar color to that of the light of the first light source, and the light source control module controls individually the illumination of the first light source and the second light source. | 01-29-2015 |
20150036105 | PROJECTION APPARATUS - Provided is a projection apparatus that can enhance the efficiency of utilization of RGB laser lights, eliminate positional displacement in projection point caused by spaced-apart fiber cores emitting the laser lights, and detect additional information while projecting an image with the laser lights. The projection apparatus includes a laser light source emitting infrared and RGB laser lights, a fixing device fixing end portions of an infrared-light fiber and colored-light fibers used to transmit the infrared and RGB laser lights, a scanning unit projecting an image on a projection surface by scanning the projection surface with the RGB laser lights emitted from the end portions of the colored-light fibers, a detection unit detecting reflection of the infrared laser light emitted from the end portion of the infrared-light fiber, and a control unit controlling emission of the RGB laser lights from the light source, based on information detected by the detection unit. | 02-05-2015 |
20150036106 | LIGHT SOURCE UNIT AND OPTICAL ENGINE - A light source unit, includes: a semiconductor laser device that emits laser light; a wheel substrate that has a light entering surface and a light exiting surface, and includes one or more phosphor-containing regions each contains one or more kinds of phosphor converts the laser light into light having a wavelength different from a wavelength of the laser light; a motor that faces the light entering surface of the wheel substrate, wherein the motor has a rotational shaft that supports a center of the wheel substrate, and is configured to rotate the wheel substrate; and a condensing optical system that faces the light exiting surface of the wheel substrate, and condenses light that has exited from the light exiting surface of the wheel substrate, the condensing optical system comprising a lens having an optical axis that substantially coincides with a reference axis of the light that has exited from the light exiting surface of the wheel substrate, wherein the lens is sized to cover the center of the wheel substrate. | 02-05-2015 |
20150036107 | LIGHT SOURCE UNIT AND OPTICAL ENGINE - Provided is a light source unit that includes: one or more kinds of phosphor; a substrate, on which the one or more kinds of phosphor is applied; a plurality of semiconductor laser elements arrayed at a predetermined interval in a package, wherein each of the semiconductor laser elements emits a laser light beam through a light emission region; and a first optical system that comprises a first lens system, a multiplexing optical member having a light entering surface and a light exiting surface, and a second lens system, wherein the first optical system directs the laser light beams emitted from the respective semiconductor laser elements toward the substrate, the first lens system receives the laser light beams emitted from the respective semiconductor laser elements directly without substantial parallelization of the respective received laser light beams, and condenses the received laser light beams on the light entering surface of the multiplexing optical member, the multiplexing optical member multiplexes the laser light beams condensed by the first lens system, into a multiplexed laser light beam having a spatially-uniform intensity distribution, and the second lens system condenses the multiplexed laser light beam that has exited from the light exiting surface of the multiplexing optical member onto the one or more kinds of phosphor. | 02-05-2015 |
20150042960 | OPTICAL FIBER FIXING STRUCTURE AND PROJECTOR - An optical fiber fixing structure for fixing a fiber bundle that covers a plurality of bundled optical fibers with a coating and the plurality of optical fibers that are exposed from an end of the coating of the fiber bundle at a predetermined position comprises a first holding section that holds the coating of the fiber bundle, and a second holding section that holds distal end portions of the plurality of optical fibers exposed from the end of the coating of the fiber bundle respectively. The first holding section and the second holding section are integrally formed. | 02-12-2015 |
20150049308 | PROJECTOR FOR PROJECTING VISIBLE AND NON-VISIBLE IMAGES - A projector that projects a visible image as well as a non-visible image. The non-visible image might be used for any purpose, but an example is in order to provide depth information regarding physical item(s) interacting with the projected visible image. The projector includes multiple projecting units (e.g., one for each pixel to be displayed), each including light-emitting elements configured to emit light in the visible spectrum. Some or all of those projecting units might also include an emitting element for emitting light in the non-visible spectrum so as to collectively emit a non-visible image. Optics may be positioned to project the visible image and the non-visible image. A depth sensing module detects depth of surfaces within the scope of the non-visible image using a reflected portion of the non-visible image. | 02-19-2015 |
20150049309 | IMAGE PROJECTION APPARATUS AND PRESENTATION SYSTEM - The present invention is concerning an image projection apparatus comprising: a projecting unit that projects and displays on a projection surface each image in a time sharing manner for each of a plurality of color components, for an input image signal; a shooting unit that shoots a projected image on the projection surface; a shoot control unit that makes the shooting unit perform the shooting, when a detection mode of a irradiation point at which light is irradiated from an irradiation device on the projection surface is set, in timing shifted by a certain amount of time from a synchronized state to time sharing timing of each color component in the projecting unit; and an irradiation-point-position detecting unit that detects, from a projected image projected by the projecting unit, a position of the irradiation point on the image. | 02-19-2015 |
20150062539 | PROJECTOR USING ONE COMMON LIQUID CRYSTAL UNIT TO LOAD IMAGE INFORMATION ON LIGHT RAYS - A projector includes a light source module, a collimation element, a liquid crystal unit, and a combination element. The light source module includes a red light source, a green light source, and a blue light source. The collimation element includes an optical portion, the optical portion includes three collimation lenses aligned with the red light source, the green light source, and the blue light source respectively. The liquid crystal unit includes three information-loading areas aligned with the three collimation lenses respectively. The combination element includes three parallel reflecting surfaces, the three reflecting surfaces incline 45 degrees toward the liquid crystal unit, and are aligned the three information-loading areas respectively. | 03-05-2015 |
20150062540 | IRRADIATION OF AN IMAGING OPTICAL SYSTEM OF A PROJECTOR - Various embodiments may relate to a method for irradiating an imaging optical system of a projector. The imaging optical system is irradiated with light of different colors from different semiconductor light sources sequentially, both with individual colors and superimposed as mixed light. | 03-05-2015 |
20150077714 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system including at least one laser source, at least one anisotropic light expanding element and a wavelength conversion element is provided. The at least one laser source emits a laser beam. The at least one anisotropic light expanding element is disposed on the transmission path of the laser beam and causes the laser beam to expand along a light expanding direction. The light expanding direction is substantially parallel to the slow axis of the laser beam. The wavelength conversion element is disposed on the transmission path of the laser beam. A projection apparatus is also provided. | 03-19-2015 |
20150077715 | PROJECTOR AND METHOD FOR COMPENSATING FOR AMOUNT OF LASER LIGHT - Provided is a projector including: a control unit which controls amounts of laser light output by a plurality of light source units, based on color pixel values of each of plural pixels of an image which is projected onto a projection surface, the color pixel values corresponding to different colors of wavelengths of the laser light output by the plurality of light source units, wherein the control unit further compensates for the amounts of the laser light, based on a portion of the amounts of the laser light detected by an OEIC, so that for each of the different colors, proportion of the amount of the laser light of the color output by one of the light source units to the color pixel value of the color in each of the plural pixels of the image corresponds to predetermined proportion. | 03-19-2015 |
20150077716 | SIMULTANEOUS MULTIPLEXED IMAGING SYSTEM AND METHOD - A system and method for multiplexing multiple images of different colors using only a single spatial light modulator (SLM) are disclosed. In the disclosed system, a first dichroic beam splitter receives an image light of first and second wavelengths from the SLM, and reflects the image light of the first wavelength towards a first mirror and an image light of the second wavelength towards a second mirror. The first mirror reflects the image light of the first wavelength at a first angle, and the second mirror reflects the image light of the second wavelength at a second angle. Further, the system includes a second dichroic beam splitter that receives the image light of the first wavelength from the first mirror and the image light of the second wavelength from the second mirror, and recombines the image light of the first and second wavelengths to produce an overlap image. | 03-19-2015 |
20150077717 | FIBER ARRAY LIGHT SOURCE - A system and method for providing a fiber array light source with individually controlled multiple-wavelength outputs are disclosed. A single spatial light modulator (SLM) outputs an image light of a first wavelength and an image light of a second wavelength. An overlap image is produced based on the image light of the first and second wavelengths. A fiber array receives light associated with the overlap image so that each individual optical fiber in the fiber array corresponds to multiple pixels on the SLM. | 03-19-2015 |
20150103320 | PROJECTOR - A projector includes a light source apparatus, a light modulator that modulates light outputted from the light source apparatus in accordance with image information, and a projection system that projects light modulated by the light modulator. The light source apparatus outputs light formed of first light of a narrow wavelength band having a first wavelength where the optical intensity peaks and second light of a narrow wavelength band having a second wavelength where the optical intensity peaks, and the separation between the first and the second wavelength is set at a value greater than ¼ of one-cycle wavelength of a ripple among ripples contained in an optical spectrum of light that results from the light incident on the light modulator and is reflected off the light modulator, the ripple located in the wavelength regions of the first light and the second light, but smaller than ¾ of the one-cycle wavelength. | 04-16-2015 |
20150103321 | MICROMECHANICAL COMPONENT INCLUDING AN INTEGRATED PHOTODIODE AND A MICROPROJECTOR - A micromechanical component includes: at least one micromirror; and an integrated photodiode. The micromechanical component is part of a microprojector which further includes a light source. The integrated photodiode of the micromechanical component receives light from the light source. | 04-16-2015 |
20150109584 | LIGHT SOURCE DEVICE, AND IMAGE PROJECTION APPARATUS EMPLOYING LIGHT SOURCE DEVICE - A light source device includes a first light source to emit first light having a first wavelength range; a wavelength convertor, disposed on an optical path of the first light, to receive the first light to emit light having other wavelength range different from the first wavelength range; a cyclical movement unit to cyclically move the wavelength convertor while crossing the optical path of the first light; optical parts to define an optical path of the first light, and an optical path of the light emitted from the wavelength convertor; a detector to detect a cyclic movement condition of the cyclical movement unit; and a received light quantity reducing unit to reduce light quantity of the first light received by the wavelength convertor when a cyclic movement condition detected by the detector satisfies an abnormal condition while outputting the first light or the light having other wavelength range to outside. | 04-23-2015 |
20150109585 | LASER BEAM PROJECTION APPARATUS AND PROJECTOR - A laser beam projection apparatus includes a first light source module including a red color laser light source, a green color laser light source, and a blue color laser light source, and a light source module for combination configured to be capable of emitting a laser beam and be used in combination with the first light source module according to use. The first light source module includes a first casing, and the light source module for combination includes a second casing. The first casing and the second casing have a common casing configuration including at least light source fitting portions. | 04-23-2015 |
20150109586 | SCANNING PROJECTION APPARATUS AND PORTABLE PROJECTION APPARATUS - A scanning projection apparatus is provided with a first light source module which includes a laser light source to emit a laser beam and a mirror unit which can be oscillated. Further, a light deflection unit which performs a two-dimensional scanning with the laser beam emitted from the first light source module by the mirror unit, a light detection unit which detects a distance from the mirror unit to an image projection surface or a difference in distance in the image projection surface, and a control unit which controls an oscillation angle of the mirror unit based on distance information from the light detection unit are included. | 04-23-2015 |
20150116668 | Hybrid Light Engine for Projector - A projector includes a light source, a filter unit, an auxiliary light source and a combiner. The light source produces a first beam of light having light in a plurality of ranges of wavelengths, corresponding to a plurality of colors. The filter unit is positioned in the optical path of the first light beam. The filter unit is configured in a first configuration during a first time interval and in a second configuration during a second time interval. When the filter unit is configured in the second configuration, the auxiliary light source produces a second beam of light. The combiner combines the first beam of light and the second beam of light. The combined beams of light are directed to a spatial light modulator. | 04-30-2015 |
20150124225 | LIGHT SOURCE DEVICE AND PROJECTOR - A light source device includes a plurality of light sources arranged in a first direction, a first cylindrical lens, which light beams from the plurality of light sources enter, and a lens unit, which light beams from the first cylindrical lens enter. A generating line of the first cylindrical lens is parallel to the first direction. The lens unit is provided with a plurality of cylindrical lenses disposed so as to correspond respectively to the plurality of light sources, and a generating line of each of the plurality of cylindrical lenses intersects with the first direction. An arrangement of a second cylindrical lens included in the plurality of the cylindrical lenses is determined independently of the adjacent one of the cylindrical lenses. | 05-07-2015 |
20150124226 | PROJECTION SYSTEM - A projection system includes a projection lens, an image modulation device, a light-guiding rod and two light sources. The light-guiding rod is defined with an axial direction and has a first end and a second end. The first end has a transmission surface and a reflection surface. The ratios of the widths of the transmission and reflection surfaces to the panel width of the image modulation device are 0.13˜0.35. The lights of the first and second light sources are incident into the light-guiding rod through the transmission surface and onto a first side surface and reflected into the light-guiding rod through the first reflection surface, respectively. The light-guiding rod homogenizes the incident lights and transmits the homogenized light to the image modulation device through the second end thereby forming an image light. The projection lens projects the image light. | 05-07-2015 |
20150131059 | LASER MODULE HAVING A DUOCHROMATIC LASER DIODE FOR A PORTABLE IMAGE PROJECTOR - A laser module is described for an image projection system, which has a duochromatic laser diode designed to generate a first beam bundle having laser light of a first wavelength and laser light of a second wavelength; a first collimating optics system designed to collimate the first beam bundle; at least one first monochromatic laser diode designed to generate a second beam bundle having laser light of a third wavelength; a second collimating optics system designed to collimate the second beam bundle; and a first optical combination device developed to combine the first and second beam bundles in order to form an output beam bundle of the laser module. | 05-14-2015 |
20150131060 | LIGHT EMITTING DEVICE, SUPER-LUMINESCENT DIODE, AND PROJECTOR - A light emitting device includes a substrate, a laminated body formed by stacking a first cladding layer, a first active layer, a second cladding layer, a third cladding layer, a second active layer, and a fourth cladding layer on the substrate in this order, a first electrode connected to the first cladding layer, a second electrode connected to the second cladding layer and the third cladding layer, and a third electrode connected to the fourth cladding layer, the first active layer generates first light using the first electrode and the second electrode, the second active layer generates second light using the second electrode and the third electrode, and a side surface of the first active layer is provided with an emitting section for emitting the first light, and a side surface of the second active layer is provided with an emitting section for emitting the second light. | 05-14-2015 |
20150138509 | LIGHT DISTRIBUTION SYSTEM WITH A BLUE LASER AND COLOUR CONVERSION - A light distribution system with a blue laser and colour conversion is provided. The system comprises: a blue laser light source; a plurality of optical fibers; a light distribution system configured to receive blue laser light from the blue laser light source and distribute the blue laser light to the plurality of optical fibers; a plurality of colour conversion systems, each configured to: receive the blue laser light from at least one of the plurality of optical fibers; and convert the blue laser light to at least one other colour of light different from the blue laser light; and, a plurality of projectors configured to receive the at least one other colour of light, from the plurality of colour conversion systems, for use in projecting images. | 05-21-2015 |
20150138510 | SYSTEM FOR VARIABLE DISTRIBUTION OF LIGHT - A system for variable distribution of light is provided. The system comprises: a plurality of reflective optical devices having a first variable reflective beam splitter configured to receive light along an input light path and direct a first portion of the light along a first light path and direct a second portion of the light to another one of the plurality of reflective optical devices, and a last reflective optical device configured to receive remaining light from a second last reflective optical device and to perform one of: direct the remaining light along a last light path; and, divide the remaining light into two portions, and direct the two portions along two different light paths. At least one optical property of one or more of the plurality reflective optical devices is adjustable to variably apportion received light. | 05-21-2015 |
20150138511 | SYSTEM FOR UNIFORM DISTRIBUTION OF LIGHT - A system for uniform distribution of light is provided. The system comprises: an integrating rod comprising an output end opposite an input end, the integrator rod configured to emit, at the output end an integrated image of light received at the input end, the integrated image having an etendue E | 05-21-2015 |
20150146173 | LIGHT SOURCE SYSTEM AND DISPLAY APPARATUS COMPRISING THE SAME - A light source system includes a laser module and at least one light coupling module. The laser module includes a plurality of laser sources, each of which provides a light beam. The light coupling module has a light incident surface, a plurality of total reflection surfaces and a light output surface. The light incident surface includes a plurality of light incident zones, and the light incident zones are disposed corresponding to the laser sources, respectively. The total reflection surfaces are disposed corresponding to the light incident zones, respectively. The projected areas of the total reflection surfaces on the light output surface have no overlap with each other. | 05-28-2015 |
20150146174 | PROJECTOR WITH OPTICAL CONVERSION MEDIA PUMPED BY LOW ETENDUE SOURCE - A projector system with a single imaging array has a low-etendue light source. The projector system includes a first optical path from the low-etendue light source to a plurality of optical conversion media having a plurality of emission wavelengths to provide display light with wavelengths longer than blue light. The projector system includes a second optical path from the optical conversion media to the imaging array. The projector system has a means of moving an excitation location on the optical conversion media in the first optical path. The projector system may include a blue LED, a diffuser region, or an optical conversion medium with a blue emission wavelength to provide blue display light. Light from the low-etendue light source is prevented from directly impinging on the imaging array. | 05-28-2015 |
20150293432 | LIGHT SOURCE DEVICE AND PROJECTION-TYPE IMAGE DISPLAY DEVICE - To provide a light source device and a projection-type image display device which can improve light emitting efficiency and service life of a fluorescent material. The light source device includes: an excitation light source for emitting excitation light; a fluorescent material for emitting fluorescent light when excited by the excitation light; and an optical member for directing the excitation light to the fluorescent material. The optical member has a curvature that is set such that a light-condensing position of the excitation light is positioned on a light-emitting side of the excitation light relative to the fluorescent material. An optical fiber is disposed between the excitation light source and the light source, so that the excitation light from the excitation light source may be made incident on the optical fiber. | 10-15-2015 |
20150296190 | PROJECTION-TYPE VIDEO-IMAGE-DISPLAYING DEVICE - A projection-type video-image-displaying device efficiently displays an image by reducing the loss of light in the device. The device is provided with a light source radiating white light, a rod lens, a rotary color filter, a DMD, illumination optical elements, a projection lens and a control device. The rod lens collects light from the light source and emits the light. The rotary color filter selectively transmits, from the white light, light of a specific color. The DMD modulates incident light in accordance with an image signal, and the illumination optical elements form illumination light for projection onto the DMD. The projection lens projects an image formed using the DMD. The control device synchronizes the rotary color filter with the image displayed by the DMD. The DMD is disposed in a substantially conjugate relationship with the light-emitting surface on the rotary color filter. | 10-15-2015 |
20150301331 | PROJECTION DEVICE WITH COLOR WHEEL LOCKING FUNCTION AND METHOD USING THE SAME - A projection device with a color wheel locking function is provided. The projection device includes a light source, a first color wheel unit, a first spindle motor, a magnetic locking mechanism and a control unit. The light source generates a light beam. The first color wheel unit has at least one transparent region through which the light beam transmits. The first spindle motor is to be enabled to rotate the first color wheel unit, and disabled to stop rotating in correspondence with an external magnetic force. The magnetic locking mechanism abuts upon the first spindle motor and generates the external magnetic force. The control unit controls the magnetic locking mechanism. When the first spindle motor stops in correspondence with the external magnetic force, a position of the at least one transparent region corresponds to the light source so that the light beam transmits through the transparent region. | 10-22-2015 |
20150309325 | Raman Despeckling with Spectral Control - An apparatus and method for controlling the spectrum of stimulated Raman scattering that is used for despeckling of digitally projected images. The stimulated Raman scattering is utilized to add wavelength diversity for reduced speckle and to change the color of the light to a more desirable combination of wavelengths. Digital projection with color-sequential projectors may be enabled by alternately switching the Raman spectrum between green and red. Improved projector transmission may be achieved by minimizing the amount of yellow light generated in the Raman spectrum. | 10-29-2015 |
20150309400 | LIGHT SOURCE MODULE AND IMAGE PROJECTION DEVICE - A light source module and an image projection device which can have high resolution and high optical efficiency are provided with a simple optical system. A light source module includes a light source unit formed by a plurality of stacked light emission surfaces which emit lights of at least red, blue, and green wavelength bands, and a light-source drive and control unit which supplies a driving current to the respective light emission surfaces of the light source unit. Each of the light emission surfaces of the light source unit has a nanostructure smaller than a wavelength of visible light near a p-n junction provided in a semiconductor having a larger band gap than the visible light, and emits a light of a corresponding one of the wavelength bands via a phonon level. | 10-29-2015 |
20150316775 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system includes a coherent light source, a first light-combining element, an optical wavelength conversion module, and a first auxiliary light source. The coherent light source emits a coherent light beam. The first light-combining element is disposed on a transmission path of the coherent light beam. The light wavelength conversion module is disposed on a transmission path of the coherent light beam transmitted from the first light-combining element and converts the coherent light beam into a first converted light beam, and reflects the first converted light beam back to the first light-combining element. The first auxiliary light source emits a first auxiliary light beam which is transmitted to the first light-combining element along the transmission path of the coherent light beam. The first light-combining element combines the first auxiliary light beam and the first converted light beam. A projection apparatus is also provided. | 11-05-2015 |
20150316840 | LIGHT SOURCE DEVICE AND PROJECTOR USING THE SAME - A light source device including: a light source section which generates any one of blue light, red light, and green light; a phosphor which generates a fluorescence including the two colors other than the color of the light emitted from the light source section; a color-changing section which changes one of the two colors of the fluorescence emitted from the phosphor to another color regularly and irradiates it to the image-forming element; and a light path-switching section which switches a light path in which a fluorescence excited by the color light emitted from the light source section passes towards the color-changing section and a light path in which the color light emitted from the light source section passes towards the image-forming element regularly. | 11-05-2015 |
20150323861 | LIGHT SOURCE APPARATUS, PROJECTOR, AND METHOD FOR ILLUMINATING AN IMAGE MODULATION ELEMENT - This light source apparatus is provided with: a fluorescent material, an excitation light source that emits excitation light for exciting the fluorescent material, a first homogeneous optical element that makes the illuminance distribution of the excitation light more homogeneous and then emits the excitation light, a second homogeneous optical element that makes the illuminance distribution of the fluorescent light emitted from the fluorescent material more homogeneous and then emits the fluorescent light, a first optical system that guides the excitation light to the first homogeneous optical element, a second optical system that guides light emitted from the first homogeneous optical element to the fluorescent material, and a third optical system that guides the fluorescent light supplied from the fluorescent material to the second homogeneous optical element. | 11-12-2015 |
20150331303 | PROJECTION APPARATUS AND METHOD FOR PROTECTING PROJECTION APPARATUS - A projection apparatus and a method for protecting the projection apparatus are provided. The projection apparatus includes a light source module, a light source control module, and an optical engine module. The light source module includes a light source and light conversion unit. The light source emits an illumination beam, and the light conversion unit converts the illumination beam into a plurality of color beams with different colors. The light source control module includes a light sensing unit and a control unit. The light sensing unit senses light intensities of the color beams, and the control unit determines whether to turn off the light source according to at least one of a light intensity proportion of the color beams and a sum of the light intensities of the color beams. The optical engine module receives the color beams to generate an image beam. | 11-19-2015 |
20150334361 | IMAGE PROJECTOR AND IMAGE PROJECTOR CONTROL METHOD - An image projector includes: a light source to emit light; an image forming element irradiated with the light from the light source and to form an image for projection onto a projection surface; a first controller activated when the image projector is in a waiting state; and a second controller that is not activated when the image projector is in the waiting state. In response to detection of an execution request for executing the image projector in the waiting state at the first controller, the first controller sets a power supply circuit with an initial voltage to start supplying power to the light source, and when the light source is lighted at the initial voltage, activates the second controller. | 11-19-2015 |
20150338061 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS WITH SAME - An illumination system for a projection device is provided. The projection device emits a first waveband light along a first optical path. The illumination system includes a wavelength conversion element, a sequential light-filtering device, and a light guiding device. The wavelength conversion element converts the first waveband light into a second waveband light along a second optical path. The sequential light-filtering device sequentially filters the first waveband light and the second waveband light along a third optical path. The light guiding device guides the first waveband light and the second waveband light along a third optical path or guides the first waveband light to the wavelength conversion element. Consequently, the first waveband light and a first light beam and a second light beam of the second waveband light are sequentially filtered by the sequential light-filtering device and projected out. | 11-26-2015 |
20150346593 | LIGHT SOURCE UNIT INCLUDING LUMINESCENT PLATE ON TO WHICH EXCITATION LIGHT FROM EXCITATION LIGHT SOURCE IS SHONE AND PROJECTOR INCLUDING THE LIGHT SOURCE UNIT - To provide a light source unit which can execute a projection with less consumed power and noise and a projector including this light source unit, a light source unit is provided which includes an excitation light source and a luminescent plate which includes a first luminescent light emitting area on which a resin mixed luminescent material layer containing a resin binder is provided and a second luminescent light emitting area on which a luminescent material containing no resin binder is provided, on to which first luminescent light emitting area and second luminescent light emitting area excitation light from the excitation light source is shone. | 12-03-2015 |
20150346594 | LIGHT SOURCE DEVICE AND PROJECTOR - A light source device includes a phosphor layer having a side surface, a bottom surface, and a top surface opposed to the bottom surface, a reflecting member opposed to the side surface of the phosphor layer, a substrate disposed on the bottom surface side of the phosphor layer, and an adhesive adapted to bond the phosphor layer and the substrate to each other. A surface of the substrate located on the phosphor layer side includes a recessed section overlapping the reflecting member on at least an outer side of the phosphor layer in a planar view. A part of the adhesive running off the phosphor layer is received by the recessed section. Fluorescence generated in the phosphor layer is emitted from the top surface and the side surface. | 12-03-2015 |
20150362830 | LIGHT SOURCE MODULE AND PROJECTION APPARATUS - A light source module includes a light source, a wavelength conversion module, and a light combining unit. The light source provides a beam. The wavelength conversion module converts part of the beam into a wavelength conversion beam and reflects part of the beam. The light combining unit is disposed between the light source and the wavelength conversion module and located on transmission paths of the beam and the wavelength conversion beam, and includes a splitting portion and a wavelength reflecting portion. The beam is transmitted to the wavelength conversion module after passing through the splitting portion. The splitting portion reflects the wavelength conversion beam. Part of the beam is transmitted to the wavelength reflecting portion after reflected by the wavelength conversion module. The wavelength reflecting portion reflects part of the beam to combine the beam and the wavelength conversion beam into an illumination beam. A projection apparatus is also provided. | 12-17-2015 |
20150378249 | Light Source Device, Method For Manufacturing Light Source Device, And Projector - A light source device includes: a first semiconductor laser; a second semiconductor laser; a first collimator lens corresponding to the first semiconductor laser; a second collimator lens corresponding to the second semiconductor laser; and a deflection prism provided on the light exiting side of the first collimator lens so that an angle formed by a principal ray of first light emitted from the first semiconductor laser and a principal ray of second light emitted from the second semiconductor laser is smaller on the light exiting side of the deflection prism than on the light incident side thereof. | 12-31-2015 |
20150381953 | WAVELENGTH CONVERSION ELEMENT, LIGHT SOURCE DEVICE, AND PROJECTOR - A wavelength conversion element includes a disk, a wavelength conversion layer disposed above a first surface of the disk, and a reflecting layer disposed between the disk and the wavelength conversion layer, and Formula 1 is fulfilled. | 12-31-2015 |
20160004138 | WAVELENGTH CONVERSION DEVICE AND PROJECTOR - A wavelength conversion device including a main body and a transparent element is provided. The main body has at least one wavelength conversion region, a containing recess portion, and a stop portion. The containing recess portion and the stop portion encircle a closed slot. The transparent element is disposed in the closed slot to construct a light penetration region. The stop portion stops the transparent element along a radial direction of the main body. Moreover, a projector using the wavelength conversion device is also mentioned. | 01-07-2016 |
20160011493 | INTERFACE DEVICE AND CONTROL METHOD | 01-14-2016 |
20160011497 | ILLUMINATION DEVICE AND PROJECTOR | 01-14-2016 |
20160021347 | DISPLAY SYSTEM BASED ON PERSISTENCE OF VISION WITH A LINE SCREEN - A display system for displaying an image is disclosed. The system comprises a projector comprising at least one collimated light source and a controller for receiving image data and controlling the light source, configured such that, in use, an array of columns of image data representing an image are projected sequentially onto a reflector. Due to persistence of vision they appear superimposed on one another when reflected into the eye of an observer and such that, when the observer's eye moves in a direction perpendicular to the direction of orientation of the projected columns the observer can view the image. | 01-21-2016 |
20160041457 | PROJECTOR WITH WAVE LENGTH WHEEL AND COLOR WHEEL IN ONE MODULE - A projector with a wave length wheel and a color wheel in one module is proposed, the projector comprising: a light source configured to generate a first wavelength band light; a dichroic filter configured to reflect the first wavelength band light irradiated from the light source, and to transmit a second wavelength band light and a third wavelength band light; integrated wavelength conversion wheel and color wheel modules configured to integrally form a wave length wheel and a color wheel each wheel in a parallel manner in order to allow transmitting the first wavelength band light reflected from the dichroic filter and to generate the second wavelength band light and the third wavelength band light through wavelength conversion using the first wavelength band light as an excited light and to reflect the generated second wavelength band light and the third wavelength band light to the dichroic filter; and a light tunnel configured to receive the first wavelength band light reflected from the dichroic filter by transmitting the integrally formed wave length wheel and color wheel, and the second wavelength band light and the third wavelength band light transmit through the dichroic filter by being generated by and reflected from the integrally formed wave length wheel and color wheel. | 02-11-2016 |
20160041458 | PROJECTOR - A projector includes at least one light source, a light combination assembly, a light-shape adjusting element, an illuminating assembly, and an imaging assembly. The light source is used for emitting at least one light beam. The light combination assembly is disposed at the transmission path of the light beam for transferring the light beam to an illumination beam. The light-shape adjusting element is disposed in the light combination assembly and located at the transmission path of the light beam for adjusting a light shape of the light beam, in which the light shape of the light beam is adjusted to be an elliptical shape. The imaging assembly is disposed at the transmission path of the illumination beam for transferring the illumination beam to an image beam. The imaging assembly is disposed at the transmission path of the image beam for projecting the image beam. | 02-11-2016 |
20160041459 | Projector - A relay system (formed of a plurality of optical systems) that generates a spherical aberration allows each light ray flux to be so adjusted that the cross section thereof has a moderate size (moderate degree of spread) on an image panel surface of each color modulation light valve, that is, the light ray flux is not brought into complete focus but is blurred. Further, as the aberrations to be generated, the amount of spherical aberration is set to be much greater than those of the other third-order aberrations, whereby generated spots are allowed to have the same shape irrespective of the field position. | 02-11-2016 |
20160054646 | PROJECTOR - A projector includes a light source module, an optical engine, a light valve and a projecting lens. The light source module includes light sources, optical fibers and a light integration rod. Each of the light sources provides an illumination sub-beam. Each of the illumination sub-beams transmits to the light integration rod through the corresponding optical fiber, and passes through the light integration rod and emits out to form a first illumination beam. The optical engine includes a phosphor wheel located at a transmission path of the first illumination beam and converting the first illumination beam into a second illumination beam. The light valve is located at a transmission path of the second illumination beam and converts the second illumination beam into an image beam. The projecting lens is located at a transmission path of the image beam and projects the image beam out of the projector. | 02-25-2016 |
20160057397 | COLLIMATOR LENS, LIGHT SOURCE UNIT INCLUDING SAME COLLIMATOR LENS, AND PROJECTOR - A collimator lens has an entrance portion having an elongated recess portion which incident light enters, which is formed into a recess curved inwards towards an exit direction of the incident light, with the direction of a first axis intersecting an axis of the incident light at right angles defined as a longitudinal direction and in which a recessed edge in a cross section intersecting the first axis at right angles is formed into an arc, and an exit portion from which the incident light entering the entrance portion exits and which is formed so that a curvature of an arc-shaped edge in the cross section intersecting the first axis at right angles differs from a curvature of an arc-shaped edge in a cross section intersecting at right angles a second axis intersecting the axis of the incident light and the first axis at right angles. | 02-25-2016 |
20160057398 | IMAGE PROJECTION APPARATUS - An image projection apparatus includes a light source, a color wheel, a controller. The controller controls, in a first mode, electric power supplied to the light source at a timing of a first color filter being irradiated with light from the light source to be a value higher than electric power supplied to the light source at a timing of a second color filter corresponding to a color having lower visibility than a color of the first color filter being irradiated with the light from the light source. Furthermore, the controller controls, in a second mode, the electric power supplied to the light source at the timing of the first color filter being irradiated with the light from the light source to be a value lower than the electric power supplied to the light source at the timing of the second color filter being irradiated with the light. | 02-25-2016 |
20160062017 | Broadband, Selectively-Absorptive Wire Grid Polarizer - The invention includes a selectively-absorptive wire grid polarizer (WGP) comprising an array of parallel, elongated rods located over a surface of a transparent substrate with gaps between adjacent rods. Each of the rods can include a reflective wire and two absorptive ribs. The reflective wire can be sandwiched between the two absorptive ribs and the substrate or the two absorptive ribs can be sandwiched between the reflective wire and the substrate. Each of the two absorptive ribs can comprise a different material. Use of multiple absorptive ribs within each rod can increase the effective useful bandwidth of light for selectively absorbing one polarization. | 03-03-2016 |
20160062220 | LIGHT SOURCE DEVICE AND PROJECTION-TYPE DISPLAY DEVICE - A light source device is provided that can achieve a reduction in size with respect to the direction of irradiation of light to a fluorescent unit as well as a decrease in cost. The light source device ( | 03-03-2016 |
20160062221 | ILLUMINATION OPTICAL SYSTEM AND PROJECTOR - An illumination optical system is provided that is capable of reducing the saturation or reducing the emission intensity of a phosphor. The illumination optical system ( | 03-03-2016 |
20160062223 | ILLUMINATION APPARATUS AND PROJECTOR - An illumination apparatus includes a light source apparatus that outputs first, second, and third light beams, an afocal system on which the first, second, and third light beams are incident, a first fly-eye lens, a second fly-eye lens, a light convergence system provided in a position downstream of the second fly-eye lens, and a phosphor layer that the first light beam, the second light beam, and the third light beam enter via the light convergence system. When a ratio between the distance between the first light beam and the second light beam and the distance between the first light beam and the third light beam is defined as a ratio R, the ratio R on the light exiting side of the afocal system differs from the ratio R on the light incident side of the afocal system. | 03-03-2016 |
20160062224 | LIGHT SOURCE APPARATUS AND PROJECTOR HAVING LIGHT SOURCE APPARATUS - There is provided a light source apparatus and projector having the light source apparatus, said light source apparatus comprising: a laser module where first semiconductor laser(s) and second semiconductor laser(s) which emits a light of the wavelength different from that of said first semiconductor laser(s) are placed such that the emitting direction of each semiconductor laser is approximately the same and a short axis direction of a far field pattern of each semiconductor laser is approximately the same, and an optical multiplexing component which a light which exits from said laser module enters without being converged, wherein said first semiconductor laser(s) and said second semiconductor laser(s) are placed in linear symmetry in said short axis direction at the exit surface of said laser module. | 03-03-2016 |
20160065919 | LIGHT SOURCE APPARATUS AND PROJECTOR HAVING LIGHT SOURCE APPARATUS - A light source apparatus and a Projector including the light source apparatus are provided. The light source apparatus comprises: a plurality of light sources each including a laser diode and a collimating lens, said collimating lens making a light emitted from said laser diode into an approximately collimated beam, a plurality of housings in which said plurality of light sources are placed so that a light is emitted from each of said light source advances approximately in parallel in the same direction, a condenser lens which condenses lights which is emitted from said plurality of housings to a phosphor, a phosphor wheel having said phosphor, said phosphor wheel transmitting the lights which is emitted from said condenser lens, wherein incident angles of the lights emitted from said housings to an optical axis of said condenser lens are made different by varying mount angles of said housings to a supporting member. | 03-03-2016 |
20160070095 | PROJECTOR - A projector includes a color wheel module and an optical engine. The color wheel module includes a rotation device, a mount, a color wheel, and an optical sensor. The color wheel is fixed on a rotary part of the rotation device. The rotation device and the optical sensor are fixed on the mount. The mount has an anti-dust structure includes a curved surface that is opposite to a rotary surface of the rotary part and extends in a rotation direction of the rotary part. The curved surface and the optical sensor are arranged sequentially in the rotation direction. Either by shortening a distance between the curved surface and the rotary surface or by a guiding slot that is disposed beside or lower than the curved surface, dust deposited on the optical sensor can be reduced effectively. | 03-10-2016 |
20160070159 | PROJECTOR DEVICE - A projector device of the present disclosure includes a luminous tube made of quartz glass, a concave reflecting mirror in which the luminous tube is disposed, and an optical unit for projecting an image by utilizing light emitted from the concave reflecting mirror. The luminous tube has a luminous part, in which at least mercury is enclosed inside and a pair of electrodes is disposed so as to face each other, and a pair of sealing parts extending from the luminous part in opposite directions to each other. The luminous tube is disposed so as to direct the pair of electrodes in a vertical direction. A region of the image projected from the optical unit is a horizontally long rectangle. | 03-10-2016 |
20160073068 | LUMINESCENT WHEEL, LIGHT SOURCE UNIT HAVING LUMINESCENT WHEEL DEVICE INCLUDING SAME LUMINESCENT WHEEL, AND PROJECTOR - There is provided a luminescent wheel including a reflecting plate on which a diffuse plate and a luminescent material layer are provided in an end-to-end relationship with each other in a circumferential direction, a first supporting plate which is provided on one surface of the reflecting plate to support part of the diffuse plate, and a second supporting plate which is provided on the other surface of the reflecting plate to support part of the diffuse plate, and the luminescent material layer is formed on the reflecting plate. | 03-10-2016 |
20160073072 | PROJECTION IMAGE DISPLAY APPARATUS - A projection image display apparatus of the present disclosure is provided with a plurality of light sources, a light combiner combining light rays emitted from the light sources, a light modulation element modulating light emitted from the light combiner, and a projection optical system projecting an image emitted from the light modulation element. The light sources are each controlled by pulse width modulation signals, and duty ratios of the pulse width modulation signals to the light sources differ from each other at least in a part of a set range of an amount of light combined by the light combiner. | 03-10-2016 |
20160077325 | COLOR WHEEL AND PROJECTION DEVICE - A color wheel is suitable for being disposed at a transmission path of an illumination beam emitted from a light source of a projection device. The color wheel includes a disc. The disc is suitable for rotating with respect to an axis. The disc has a non-light converting region and a light converting region. The disc has a first reference surface and a second reference surface opposite to the first reference surface. The disc has a plurality of first disturbing portions and a plurality of second disturbing portions. The first disturbing portions are located at the first reference surface and in the non-light converting region. The second disturbing portions are located at the second reference surface and in the non-light converting region. The first disturbing portions and the second disturbing portions are structurally continuous relative to the disc. | 03-17-2016 |
20160077418 | LIGHT SOURCE UNIT HAVING SEMICONDUCTOR LIGHT EMITTING ELEMENTS AND PROJECTOR HAVING SAME LIGHT SOURCE UNIT - There is provided a light source unit having an excitation light shining device in which a plurality of semiconductor light emitting elements are arranged in rows and columns so that in the plurality of semiconductor light emitting elements, the direction of a major axis of an elliptic cross section of a light beam emitted from one semiconductor light emitting element is normal to the directions of major axes of elliptic cross sections of light beams emitted from adjacent light emitting elements. | 03-17-2016 |
20160088271 | DISPLAY SYSTEMS AND METHODS EMPLOYING WAVELENGTH MULTIPLEXING OF COLORS - An immersive display system is disclosed that includes screens configured to mitigate reduction in contrast ratio due at least in part to peripheral light incident on the screens. The immersive display system includes at least two screens and at least two projector systems. The screens have a multi-layered structure configured to selectively reflect light in narrow wavelength bands. Each screen is configured to strongly diffusely reflect light in narrow wavelength bands that are different from the wavelength bands reflected by other screens in the immersive display system. Projector systems can be configured to provide light to associated screens in the narrow wavelength bands reflected by those screens. | 03-24-2016 |
20160088273 | LIGHT SOURCE DEVICE AND PROJECTION TYPE IMAGE DISPLAY DEVICE - Provided is a light source device where the number of optical components is reduced without lowering an efficiency for light utilization. The light source device includes an excitation light source which generates blue laser light as excitation light, a phosphor wheel including a phosphor which is excited by the excitation light from the excitation light source to generate yellow fluorescent light, and a mirror which guides the excitation light from the excitation light source to the phosphor wheel and transmits the fluorescent light from the phosphor wheel, wherein the mirror includes a first region which reflects the excitation light and transmits the fluorescent light and a second region which transmits the fluorescent light and diffused excitation light which is diffused and reflected in the phosphor. The yellow fluorescent light and the diffused excitation light passing through the mirror are mixed to generate white light. | 03-24-2016 |
20160091712 | WAVELENGTH CONVERSION ELEMENT, LIGHT SOURCE DEVICE, AND PROJECTOR - A wavelength conversion element includes a substrate, a reflecting section disposed on one surface side of the substrate, a wavelength conversion layer disposed on an opposite side of the reflecting section to the substrate, and emitting fluorescence in response to irradiation with excitation light, and a reflecting surface disposed between a surface of the wavelength conversion layer on an opposite side to the reflecting section and the reflecting section, and adapted to totally reflect light having been input at an angle no smaller than a critical angle out of the fluorescence. | 03-31-2016 |
20160091785 | OPTICAL UNIT, OPTICAL APPARATUS USING THE SAME, LIGHT SOURCE APPARATUS, AND PROJECTION DISPLAY APPARATUS - An optical unit includes a plurality of paraboloid mirrors configured to reflect light fluxes from a plurality of LDs and to guide them to a concave lens. The light fluxes from the paraboloid mirrors are a plurality of convergent light fluxes, and the paraboloid mirrors reflect the light fluxes from the LDs such that as the convergent light fluxes travel farther away from the paraboloid mirrors, distances therebetween become shorter. | 03-31-2016 |
20160100141 | IMAGE PROJECTION APPARATUS, IMAGE PROJECTION METHOD, AND COMPUTER-READABLE STORAGE MEDIUM - An image projection apparatus includes a light source configured to emit light with a luminance according to electric power; a color wheel configured to sequentially transmit the light through multiple color filters arranged along a circumferential direction; a light modulation element configured to form an image by modulating an intensity of the light transmitted through the color wheel according to an input signal representing input image data; and a selection controller configured to select, out of a first waveform indicating temporal change in electric power supplied to the light source in a first mode and a second waveform indicating temporal change in electric power supplied to the light source in a second mode, the second waveform when a luminance value of the input signal is equal to or less than a first threshold. A brightness of the image in the second mode is lower than that in the first mode. | 04-07-2016 |
20160105651 | PROJECTOR AND METHOD FOR MIXING LIGHT BY A PROJECTOR - A method for mixing light in a projector includes mixing first light emitted by a solid state light emitter and second light into third light. The coordinates (x | 04-14-2016 |
20160131967 | ILLUMINATION OPTICAL SYSTEM AND PROJECTOR - Provided is an illumination optical system that can approximate the radiation angle characteristics of synthesized fluorescent light and laser light to each other. Illumination optical system includes laser light source, fluorescent light source, synthetic optical system configured to synthesize laser light emitted from the laser light source and fluorescent light emitted from the fluorescent light source, first lens, second lens, and third lens. The first lens is provided between the laser light source and the synthetic optical system. The second lens is provided immediately in front of the synthetic optical system on the optical path of the laser light that passed through the first lens. The third lens is provided immediately in front of the synthetic optical system on the optical path of the fluorescent light emitted from the fluorescent light source. The sum of the focal distance of the first lens and the focal distance of the second lens is set so that the maximum value of an angle formed between the laser light that passed through the second lens and the optical axis of the second lens can substantially match the maximum value of an angle formed between the fluorescent light that passed through the third lens and the optical axis of the third lens. | 05-12-2016 |
20160147135 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system including a plurality of light source units, at least one light concentrating unit, at least one taper tunnel and a light consolidating unit is provided. The light concentrating unit corresponds to and is disposed beside one of the light source units. The light concentrating unit has a first illuminating surface, the light source unit corresponding to the light concentrating unit has a second illuminating surface, and the other light source units not corresponding to the concentrator have a third illuminating surface, respectively. The concentrator is disposed between the taper tunnel and the light source unit, and the taper tunnel has a fourth illuminating surface. The light consolidating unit has a fifth illuminating surface. The area of the fourth illuminating surface, and each of the third illuminating surfaces corresponds to each other. A projection apparatus is also provided. | 05-26-2016 |
20160150200 | WAVELENGTH CONVERTING MEMBER AND PROJECTOR INCLUDING THE WAVELENGTH CONVERTING MEMBER - A wavelength converting member includes at least a first, second, and third regions, circumferentially on a disc-shaped light-transmissive substrate. The first region includes, from a light incident direction, a first and second phosphor layers. The first phosphor layer includes a first phosphor to absorb at least part of incident light and to emit a first light having a wavelength different from the incident light. The first phosphor layer defines an indentation in a surface on the second phosphor layer side, with a depth a half or more of the thickness of a portion of the first phosphor layer absent of the indentation. The second phosphor layer includes a second phosphor to absorb at least part of the first light emitted by the first phosphor and to emit a second light having a wavelength different from the first light, and is disposed in the indentation of the first phosphor layer. | 05-26-2016 |
20160165194 | LIGHTING DEVICE HAVING PHOSPHOR WHEEL AND EXCITATION RADIATION SOURCE - Various embodiments may relate to a lighting device, including an excitation radiation source and a two-sided luminescent-material wheel. At least one luminescent material is provided on each of the two sides of the two-sided luminescent-material wheel, thus both on the front side and on the opposite back side. The luminescent materials on both sides are excited sequentially in time. For this purpose, at least one transmissive region is provided in the rotating luminescent-material wheel, through which transmissive region the excitation radiation can radiate, which excitation radiation can be deflected onto the luminescent material on the back side by means of an optical unit. | 06-09-2016 |
20160165195 | IMAGE PROJECTOR, IMAGE PROJECTION METHOD, AND RECORDING MEDIUM - An image projector includes a light source to emit light, an image forming device to form an image based on a reflected light of the light emitted from the light source, a color wheel disposed between the light source and the image forming device so as to pass the light emitted from the light source to the image forming device through an optical path, the color wheel including a plurality of color filters, at least one lens to project the image formed on the image forming device to a projection surface as a projection image, and circuitry to cause the color wheel be moved away from the optical path for the light emitted from the light source, when a brightness of the projection image is to be increased. | 06-09-2016 |
20160173837 | LIGHT SOURCE APPARATUS AND PROJECTOR HAVING LIGHT SOURCE APPARATUS | 06-16-2016 |
20160182869 | LIGHT SOURCE UNIT INCLUDING LUMINESCENT MATERIAL PLATE AND PROJECTOR | 06-23-2016 |
20160191869 | SHARED-PATH ILLUMINATION AND EXCITATION OPTICS APPARATUS AND SYSTEMS - A Gaussian-distributed excitation light beam of an excitation spectrum emitted from an excitation light source enters a light pipe and is there converted to a top-hat spatially distributed excitation beam. The top-hat distributed excitation beam is focused on a phosphor-coated or reflective portion of a surface of an optical wavelength conversion element. Fluoresced and reflected beams travel outward from the wavelength conversion element and re-enter the light pipe to be homogenized during transit through the light pipe. A homogenized fluoresced or reflected beam is relayed to an output as one of a sequence of colors of homogenized light. The functions of Gaussian to top-hat conversion of the excitation beams directed toward the optical conversion element and homogenization of beams directed outward from the optical conversion element are both efficiently performed using a single, shared light pipe. | 06-30-2016 |
20160191870 | Scanning Beam Display System - A scanning beam display system includes an optical module, an image control module, and a display screen on which optical beams are scanned. The optical module includes a vertical adjuster placed in the optical paths of the beams to control and adjust positions of the optical beams along a generally vertical direction on the display screen, and a control unit configured to receive control instructions for the vertical adjuster and to control the vertical adjuster to be at one of a predetermined number of orientations to place the scanning optical beams at a corresponding distinct position on the display screen. The control unit is further configured to apply an adjustment offset to each orientation of the vertical adjuster such that each immediately vertically adjacent pair of beam footprints projected on the display screen resulting from the plurality of positions have a vertical overlap that is larger than a first threshold. | 06-30-2016 |
20160195715 | PROJECTOR AND COLOR WHEEL MODULE DUST REMOVING METHOD | 07-07-2016 |
20160377968 | WAVELENGTH CONVERSION ELEMENT, LIGHT SOURCE DEVICE, AND PROJECTOR - A wavelength conversion element includes: a substrate; an intermediate layer that is provided on the substrate and has a refractive index less than a refractive index of the substrate; a dichroic layer that is provided on the intermediate layer; and a fluorescent layer that is provided on the dichroic layer and that is excited by light with a first wavelength band and thereby emits light with a second wavelength band different from the first wavelength band. | 12-29-2016 |
20170237952 | LUMINESCENT WHEEL, LIGHT SOURCE UNIT HAVING LUMINESCENT WHEEL DEVICE INCLUDING SAME LUMINESCENT WHEEL, AND PROJECTOR | 08-17-2017 |
20170237953 | WAVELENGTH CONVERSION ELEMENT, ILLUMINATION DEVICE, AND PROJECTOR | 08-17-2017 |
20180024420 | PROJECTOR CAPABLE OF DETERMINING HOW A MOVING OBJECT INTERACTS WITH A PROJECTED IMAGE | 01-25-2018 |
20220141433 | ILLUMINATION SYSTEM AND PROJECTION DEVICE - The disclosure provides an illumination system and a projection device applying the illumination system. The illumination system includes a laser light source, a wavelength conversion module, and a spot region modulation module configured to shift a transmission path of a laser beam. When the wavelength conversion module rotates, the spot region modulation module moves, in a first period of time, the laser beam in a wavelength conversion region of the wavelength conversion module along a first shift path, so that the laser beam forms a first spot region in an irradiation region in the wavelength conversion region. The spot region modulation module causes, in a second period of time, the laser beam to form a second spot region in an irradiation region in a non-conversion region of the wavelength conversion module. A size of the first spot region is greater than a size of the second spot region. | 05-05-2022 |