Patent application number | Description | Published |
20090153963 | Light Source Switching Device Adapted for a Projection System - A light source switching device for use in a projection system is provided. The light source switching device comprises at least two light guiding devices and at least one phase switching device. The phase switching device is disposed between the two light guiding devices and adapted to be in one of a first status and a second status. When the first light travels into the light source switching device, the phase switching device is capable of being in the first status such that the first light is adapted to emit out from the outlet surface. When the second light travels into the light source switching device, the phase switching device is capable of being in the second status such that the second light is adapted to emit out from the outlet surface. With the switching operation of the phase switching device, the plural lights provided by plural light sources would be selected and uniformized by the light source switching device. | 06-18-2009 |
20090161081 | Optical Engine Structure, Rear Projection Apparatus, and Front Projection Apparatus - An optical engine structure is provided. The optical engine structure comprises a base, an auxiliary supporting device, and an image projection device. The base defines a first supporting surface and a second supporting surface forming a specialized included angle therebetween. The auxiliary supporting device extends outwards from a side of the second supporting surface, and thereby the optical engine structure firmly lies on a reference plane with the first supporting surface or the second supporting surface, corporately supported by the auxiliary supporting device. By utilizing these two supporting surfaces, the image projection device can be easily set in a front projection apparatus or a rear projection apparatus. | 06-25-2009 |
20090195714 | COLOR SWITCHING DEVICE - A liquid crystal color switching device for use in a non-polarization projection device is disclosed. The color switching device comprises a PBS and two switchable phase retarder assemblies, respectively disposed at two outlets of the PBS, wherein each of the switchable phase retarder assemblies comprises at least one liquid crystal layer and at least one dichroic coating layer. When a white light with S- and P-polarizations enters the inlet of the PBS, the white light will be divided into two orthogonal polarized lights and emitted from two outlets of the PBS. After being modulated respectively by the switchable phase retarder assemblies of the two outlets, the two switched polarized lights will be combined by the PBS into a non-polarized light and be emitted from a third outlet of the PBS. | 08-06-2009 |
20090303444 | Projection System - A projection system is provided. The projection system comprises a first light source module, a second light source module, a prism module, a projection lens and a digital micromirror device (DMD). The two light source modules provide a first light beam and a second light beam according to the specific timing sequences respectively. The prism module is defined with a first reflection mechanism and a second reflection mechanism. The DMD comprises a plurality of micro mirrors. After traveling into the prism module and being reflected by the first reflection mechanism, the first light beam is emitted onto the micro mirrors. The first light beam is adapted to be reflected into the projection lens and image into the screen while the micro mirrors are at a first angle. After traveling into the prism module and being reflected by the second reflection mechanism, the second light beam is emitted onto the micro mirrors. The second light beam is adapted to be reflected into the projection lens and image into the screen while the micro mirrors are at a second angle. The two light source modules would be switched therebetween according to the specific timing sequences and specific angles of the micro mirrors. | 12-10-2009 |
20090303707 | Light Source Transforming Apparatus and Light Source Apparatus Comprising the Same - A light source transforming apparatus and a light source apparatus comprising the same are provided. The light source apparatus comprises at least one light source and a light source transforming apparatus. The light source transforming apparatus comprises at least one light guiding medium and color-combining medium. The light source transforming apparatus is configured to receive incident light of the at least one light source and then transform the incident light into emergent light emitted from the color-combining medium and into a light integrator, wherein a divergent angle of the incident light is larger than a divergent angle of the emergent light, and a incident area of the light source is smaller than an emergent area of the color-combining medium. | 12-10-2009 |
20100007964 | LIGHT INTEGRATING DEVICE FOR AN ILLUMINATION SYSTEM AND ILLUMINATION SYSTEM USING THE SAME - A light integrating device for an illumination system and an illumination system. The illumination system includes a first light source module and a second light source module providing a first light and a second light, respectively. The device includes first and second light collecting elements and a beam splitting element. The first light travels into the first light collecting element and is split into a plurality of light groups by the beam splitting element. At least one light group travels into the second light collecting element from the beam splitting element. The second light travels into the second light collecting element, is reflected by the beam splitting element and emits out from the second light collecting element along the principle axis of the light integrating device together with the at least one light group which is split from the first light and travels into the second light collecting element. | 01-14-2010 |
20100045939 | LIGHT INTEGRATION APPARATUS FOR USE IN A PROJECTION DEVICE - A light integration aparatus for use in a projection device is provided. The light integration apparatus comprises the first integration rod and the second integration rod symmetrically disposed with respect to a symmetric axis. The light emerging ends of the first integration rod and the second integration rod are both disposed towards the symmetric axis. Thus, the light is adapted to be guided through the first integration rod and the second integration rod, and emerge from the light emerging ends to travel parallel to the symmetric axis. | 02-25-2010 |
20100060860 | LIGHT GUIDE MODULE AND PROJECTION APPARATUS HAVING THE SAME - A projection apparatus and a light guide module for use in the projection apparatus are provided. The projector apparatus comprises an illumination mechanism, at least one digital micromirror device (DMD), and a light guide module, wherein the light guide module includes a plurality of interfaces. The illumination mechanism provides a light beam which travels through the plurality of interfaces of the light guide module along a first axis without any rotation. The light beam orderly performs total internal reflections on each of the interfaces of the light guide module. Accordingly, the light beam travels to the at least one DMD, and then the light beam is reflected along a second axis. | 03-11-2010 |
20100238413 | Projection System - A projection system is provided. The projection system comprises a first light source module, a second light source module, a prism module, a projection lens and a digital micromirror device (DMD). The two light source modules provide a first light beam and a second light beam according to the specific timing sequences respectively. The prism module is defined with a first reflection mechanism and a second reflection mechanism. The DMD comprises a plurality of micro mirrors. After traveling into the prism module and being reflected by the first reflection mechanism, the first light beam is emitted onto the micro mirrors. The first light beam is adapted to be reflected onto the projection lens and images onto the screen while the micro mirrors are tilted at a first angle. After traveling into the prism module and being reflected by the second reflection mechanism, the second light beam is emitted onto the micro mirrors. The second light beam is adapted to be reflected onto the projection lens and images onto the screen while the micro mirrors are tilted at a second angle. The two light source modules would be switched therebetween according to the specific timing sequences and specific angles of the micro mirrors. | 09-23-2010 |
20100321951 | HYBRID LIGHT SOURCE SYSTEM - A hybrid light source system is disclosed. The hybrid light source system adapted to be used in a projection apparatus comprises a dichroic component, a first light source, a second light source and a light processing component. The dichroic component defines a light path, with the first light source capable of generating a first light which is projected towards to the dichroic component along the light path and the second light source capable of generating a second light which is projected towards the dichroic component along the light path and opposite to the first light. The first light comprises a first sort of light beams and a second sort of light beams, in which the first sort of light beams and the second light are guided by the dichroic component to form a hybrid light and travel into the light processing component along the light path. | 12-23-2010 |
20110241990 | PROJECTION APPARATUS AND LOCATION METHOD FOR DETERMINING A POSITION OF A LIGHT POINT ON A PROJECTION IMAGE - A projection apparatus and a location method for determining a position of a light point on a projection image of the projection apparatus are provided. The projection apparatus comprises a lens, a light detector, a light guide module and a processing circuit. The light guide module is configured to receive the light point via the lens, and to guide the light point into the light detector. The light detector outputs a detection signal to the processing circuit according to the light point within a detection period. The processing circuit determines the position of the light point on the projection image according to the detection signal. | 10-06-2011 |
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 |
20120057134 | POLARIZATION CONVERSION SYSTEM AND STEREOSCOPIC PROJECTION SYSTEM EMPLOYING SAME - A stereoscopic projection system includes an optical engine, a relay lens group, a polarization conversion system and two identical projection lenses. The optical engine is used for outputting a non-polarized image light. The non-polarized image light is imaged into the polarization conversion system through the relay lens group to produce an intermediate image. The polarization conversion system includes a polarization beam splitter, a polarization rotating element and a polarization switch. The polarization beam splitter is used for splitting the non-polarized image light into a first-state first polarized beam and a second-state second polarized beam, which have the same total optical length. By the polarization switch, the first output polarized beam and the second output polarized beam are alternately switched between the first state and the second state. The projection lenses are located in the first optical path and the second optical path for projecting the intermediate image. | 03-08-2012 |
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 |
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 |
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 |
20120147338 | PROJECTION LENS OF AN IMAGING MODULE AND IMAGING MODULE - A projection lens of an imaging module and the imaging module are provided. The imaging module further has a light modulator to project a first image with a first aspect ratio. The projection lens comprises an anamorphic lens set and a projection lens set. The anamorphic lens set comprises a first cylinder lens, a second cylinder lens, a bi-convex cylinder lens and a bi-concave cylinder lens, which are set after the light modulator in sequence. The first cylinder lens has at least one flat surface, and the second cylinder lens has at least one convex surface. The anamorphic lens set projects the first image with the first aspect ratio into a second image with a second aspect ratio; the second aspect ratio is different from the first aspect ratio. The projection lens set receives and projects the second image with the second aspect ratio. | 06-14-2012 |
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 |
20120182712 | ILLUMINATION SYSTEM - An illumination system for use in a projection device is provided. The illumination system comprises a first light source, a second light source, an optical device, a wavelength transformer and a first dichroic minor. The first light source and the second light source emit a first light beam and a second light beam respectively. The optical device defines a main optical axis and focuses the first light beam and the second light beam on a first focal point and a second focal point respectively, wherein the first focal point and the second focal point are disposed on two opposite sides of the main optical axis respectively. The wavelength transformer is disposed on the second focal point and transforms the second light beam into a third light beam. The first dichroic minor is disposed between the light sources and the optical device. The first light beam and the second light beam are allowed to pass through the first dichroic minor, and the third light beam is reflected by the first dichroic mirror. After being reflected by the first dichroic minor, the third light beam is focused onto the first focal point. | 07-19-2012 |
20120218529 | 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 imaging system and the illumination system. The illumination system comprises a first light source, a dichroic element, at least one condensing element, a rotary wheel and a light integrating element. The first light source provides a first wave band light, and the rotary wheel has at least one wave band transforming area and a reflecting area. After passing through the dichroic element and the at least one condensing element, the first wave band light will be focused onto the at least one wave band transforming area to be transformed into a second wave band light or be focused onto the reflecting area that will be reflected. The second wave band light and the reflected first wave band light will be focused on the light integrating element by the at least one condensing element. | 08-30-2012 |
20120275146 | LIGHT SOURCE SYSTEM - A light source system for use in a projector is provided. The light source system comprises a main optical axis, a first sub-optical axis, a second sub-optical axis, at least one first optical module, at least one second optical module and a third optical module. The at least one first optical module comprises a first light source array and a second light source array for emitting a plurality of first beams and a plurality of second beams respectively. The at least one second optical module comprises a third light source array for emitting a plurality of third beams. The third optical module integrates the first beams, the second beams and the third beams into a main beam for projection along the main optical axis. | 11-01-2012 |
20120275149 | LIGHT SOURCE APPARATUS - A light source apparatus comprising an optical module is disclosed. The optical module has a first optical plate and a second optical plate. The first optical plate comprises a first transparent portion and a first reflective portion. The second optical plate comprises a second transparent portion and a second reflective portion. The light source apparatus comprises a first laser array, a second laser array and a third laser array for projecting a first light, a second light and a third light towards the optical module along a first incident direction, a second incident direction and a third incident direction, respectively. The first light passes through the first and second transparent portions to travel along the emergent direction. The second light reflected by the first reflective portion travels along the emergent direction. The third light reflected by the second reflective portion travels along the emergent direction. | 11-01-2012 |
20130016323 | PROJECTOR AND SPLITTING AND COMBINING UNITS THEREOFAANM HUANG; June-JeiAACI Taoyuan HsienAACO TWAAGP HUANG; June-Jei Taoyuan Hsien TW - A projector is provided, including a first light source, a second light source, a splitting unit, a first modulating element, a second modulating element, a projection lens unit, a projection screen and a combining unit. The first light source provides a first beam in a first state. The second light source provides a second beam in a second state. The splitting unit receives the first beam and the second beam, splitting the first beam into a first sub-beam and a second sub-beam, and splitting the second beam into a third sub-beam and a fourth sub-beam. The first modulating element receives the first sub-beam and the third sub-beam from the splitting unit. The second modulating element receives the second sub-beam and the fourth sub-beam from the splitting unit. The combining unit respectively combines the first sub-beam and the second sub-beam, and combines the third sub-beam and the fourth sub-beam. | 01-17-2013 |
20130147854 | MULTI-VIEW DISPLAY APPARATUS - A multi-view display apparatus includes a screen, a projection lens, two spatial light modulators, light sources, an optical guidance system and a combining prism. The light sources can radiate light in turn. When one of the light sources radiate light, the optical guiding system can divide the light into two portions and guide the two portions of the light to the spatial light modulators respectively, and the spatial light modulators can reflect the light. The combining prism can transmit light that is reflected from the spatial light modulators to the projection lens, where the projection lens is aligned with the screen in an optical path so that the screen can receive the light that is projected from the projection lens. | 06-13-2013 |
20130155377 | AUTOSTEREOSCOPIC DISPLAY APPARATUS - An autostereoscopic display apparatus is provided and includes a first lenticular lens array, a second lenticular lens array, an optical diffuser layer, an image projector module and a switch unit. The optical diffuser layer is disposed between the first lenticular lens array and the second lenticular lens array. Multiple image beams generated by the image projector module are projected to a plurality of observing regions on an observing plane through the first lenticular lens array, the optical diffuser layer and the second lenticular lens array. The switch unit rotates the second lenticular lens array in accordance with the autostereoscopic display apparatus operates situated at a three-dimensional (3D) display mode or a two-dimensional (2D) display mode. | 06-20-2013 |
20130155378 | STEREOSCOPIC DISPLAY APPARATUS - A stereoscopic display apparatus includes an image projection module, a plurality of projection lenses and an optical path switching module. The optical path switching module is disposed between the image projection module and the projection lenses. The optical path switching module has a light-incident surface and different light-emitting surfaces. An image signal generated by the image projection module enters the optical path switching module through the light-incident surface. The optical path switching module includes a plurality of polarization beam splitters and a polarization adjusting module. The polarization adjusting module is disposed between the polarization beam splitters. The optical path switching module is used for switching the polarization adjusting module time-sequentially for guiding the image signal to those different light-emitting surfaces respectively, and accordingly a plurality of image formation beams are formed from the light-emitting surfaces though the projection lenses. | 06-20-2013 |
20130170030 | STEREOSCOPIC DISPLAY APPARATUS - A stereoscopic display apparatus includes a projection lens, a light source, a first and a second polarized beam splitters, a first and a second optical guiding system. The light source can radiate non-polarized light. The first polarized beam splitter divides the non-polarized light into P-polarized light and S-polarized light. The first optical guiding system guides the P-polarized light to the second polarized beam splitter, and the second optical guiding system guides the S-polarized light to the second polarized beam splitter. The second polarized beam splitter combines and transmits the P-polarized light and S-polarized light to the projection lens. | 07-04-2013 |
20140104841 | DISPLAY LIGHT SOURCE - A display light source includes a light source, a color wheel, an optical module, and an actuator. The light source provides a light beam. The color wheel includes a first path segment and a second path segment. Each of the first path segment and the second path segment includes a reflective segment and at least one filtering segment. When the light beam impinges on the filtering segment of the first path segment, the light beam passes through the filtering segment of the first path segment and is filtered to form a first primary-color light beam. When the light beam impinges on the reflective segment of the first path segment, the light beam is reflected to the optical module. The optical module guides the reflected light beam to the filtering segment of the second path segment, such that the reflected light beam is filtered to form a second primary-color light beam. | 04-17-2014 |
20140119003 | SOLID STATE ILLUMINATOR FOR STEREOSCOPIC DISPLAY - A solid state illuminator for a stereoscopic display includes a first solid state light source, a wavelength conversion color wheel, an actuator, a multi-band filter, and an optical module. The first solid state light source provides a first light beam with a first wavelength. The wavelength conversion color wheel includes a first transmission segment and a reflection segment. The first light beam passes through the first transmission segment and is converted into a second light beam with a second wavelength, and is reflected by the first reflection segment and is converted into a third light beam with the second wavelength. The multi-band filter transmits a portion of each of the second light beam and the third light beam, and reflects another portion thereof. The wavelength ranges of these two portions are not overlapped. The optical module guides light beams to the multi-band filter. | 05-01-2014 |
20140293170 | STEREOSCOPIC DISPLAY ILLUMINATOR AND STEREOSCOPIC DISPLAY DEVICE - A stereoscopic display illuminator includes a first light source, a curved mirror, a rotational wheel, an actuator, a multi-band filter, and an optical module. The first light source is used for providing a first light beam. The rotational wheel is disposed between the first light source and the curved mirror. The first light beam is reflected and passes through the rotational wheel in sequence. The multi-band filter allows portion of the first light beam to pass through, and allows another portion to be reflected, where the wavelengths of these two portions do not overlap. The optical module disposed between the first light source and the rotational wheel is used for guiding the first light beam to the rotational wheel, and guiding the first light beam to propagate either from the first reflective segment or from the curved mirror to two opposite sides of the multi-band filter. | 10-02-2014 |