| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 353102000 | PARTICULAR CONDENSER | 13 |
| 20080239253 | OPTICAL ELEMENT AND PROJECTION SYSTEM USING THE SAME - An optical element and a projection system using the same are provided. The optical element comprises a light-condensing part for condensing lights from a light source, and the light-condensing part includes a reflecting surface and a refracting surface, and a light-guide part, coupled to an output end of the light-condensing part, for uniformly emitting the lights condensed by the light-condensing part. The optical element and the projection system of the present invention are capable of providing an enhanced light uniformity and a high light-coupling efficiency. | 10-02-2008 |
| 20090015802 | ADJUSTING MECHANISM OF LIGHT INTEGRATION ROD MODULE, OPTICAL ENGINE AND PROJECTION APPARATUS - An adjusting mechanism for a rod module adapted to an optical engine is provided. The adjusting mechanism utilizes two wedge-shaped blocks moving in perpendicular directions so as to convert the vertical adjustment of horizontal adjusting component into horizontal adjustment of an LIR module. Therefore, operators may adjust the horizontal and vertical position of the rod module from the same side of the projector, thus increasing the convenience in adjusting the position of the rod module. | 01-15-2009 |
| 20090231556 | PROJECTING SYSTEM AND LENS COMBINATION THEREOF - The invention discloses a projecting system. The projecting system includes two sets of lens. The first set of lens has a first focal length for focusing an incident ray of light to form a first image. The second set of lens has a second focal length for projecting the first image to form a second image. The two sets of lens are separated by a lens-apex distance relative to the light path between the two sets of lens. The second focal length is smaller than or equal to the lens-apex distance. A difference between the second focal length and the lens-apex distance is smaller than or equal to a half of the first focal length. | 09-17-2009 |
| 20100118284 | ANGLED LIGHT INTEGRATOR FOR A DISPLAY DEVICE - A light integrator for a display device is provided. The light integrator may include a first light tunnel configured to receive a light beam, increase the uniformity of the light distribution in the light beam, and output the light beam, the first light tunnel having a first optical axis. The light integrator may further include a redirection component configured to receive the light beam from the first light tunnel and redirect the light beam to a second light tunnel configured to further increase the uniformity of the light distribution in the light beam and transmit the light beam to downstream optical components, the second light tunnel having a second optical axis forming an angle less than 180 degrees and non-perpendicular with the first optical axis. | 05-13-2010 |
| 20110157566 | COLLIMATOR LENS UNIT, ILLUMINATING DEVICE, AND PROJECTOR - A collimator lens unit includes at least two lenses and substantially collimates a beam of light emitted from a solid-state light source unit of a Lambert emission type, wherein at least two faces of incidence faces and emission faces of the lenses constituting the two lenses are aspheric faces, one front aspheric face located close to the solid-state light source unit has a function of changing a luminous flux density distribution of the beam of light emitted from the solid-state light source unit to a predetermined luminous flux density distribution in which the luminous flux density in the vicinity of an optical axis of the collimator lens unit is higher than the luminous flux density in a peripheral portion separated from the optical, the rear aspheric face farthest from the solid-state light source unit has a function of substantially collimating the beam of light. | 06-30-2011 |
| 20120212711 | ILLUMINATING OPTICAL SYSTEM AND PROJECTOR DEVICE - An illuminating optical system includes: a substantially rectangular-shaped light source that includes a light emitting surface with a split pattern formed thereat by a splitting line, the splitting line extending along a predetermined direction and splitting the light emitting surface into a plurality of separate areas; an illumination-target member that includes a rectangular radiation-target area; and an optical member in that condenses light departing the light emitting surface and radiates the condensed light toward the radiation-target area, wherein: an extent of uneven illumination attributable to an image of the split pattern at the light emitting surface of the light source, formed at the illumination-target member, is reduced. | 08-23-2012 |
| 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 |
| 20130215401 | ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS - The illumination optical system includes, as optical elements, a condenser lens system ( | 08-22-2013 |
| 20140118707 | ILLUMINATION OPTICAL SYSTEM AND PROJECTION-TYPE DISPLAY APPARATUS - An illumination optical system is configured to illuminate an optical modulator configured to modulate incident light and includes a condenser lens system that includes a meniscus lens with a concave on a light source side, and condenses light from a light source; and a spherical aberration corrector disposed on an optical modulator side of the condenser lens system. The illumination optical system satisfies: | 05-01-2014 |
| 20140185022 | PROJECTION SYSTEM AND LIGHT-HOMOGENIZING DEVICE ADJUSTMENT ELEMENT - The invention provides a projection system and a light-homogenizing device adjustment element for adjusting the position of a light-homogenizing device. The light-homogenizing device adjustment element has an actuator, and the actuator leans against one side of the light-homogenizing device and has a plurality of curved surfaces with different radii of curvature. When the actuator rotates, different curved surfaces push the light-homogenizing device to cause the light-homogenizing device to move in at least one direction from an initial position. | 07-03-2014 |
| 20140300873 | LASER LIGHT SOURCE APPARATUS AND IMAGE DISPLAY APPARATUS - A laser light source apparatus includes: a laser light source that emits a laser beam; a condenser lens that converges the laser beam emitted from the laser light source; and a light guide unit that propagates and outputs the laser beam converged by the condenser lens, and the laser beam converged by the condenser lens is made incident at an angle other than perpendicular to an incident end face of the light guide unit. | 10-09-2014 |
| 20150036108 | ILLUMINATION DEVICE, PROJECTION TYPE IMAGE DISPLAY DEVICE, AND OPTICAL DEVICE - To provide an illumination device and a projection type image display device that illuminate an area to be illuminated (image formation area) under conditions where speckle noise is less noticeable. | 02-05-2015 |
| 20160091784 | LASER LIGHT SOURCE, WAVELENGTH CONVERSION LIGHT SOURCE, LIGHT COMBINING LIGHT SOURCE, AND PROJECTION SYSTEM - A laser light source ( | 03-31-2016 |
