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US20090262312 PROJECTION SYSTEM AND OPTICAL SHUTTER  
An exemplary projection system includes a light source, a color wheel, an optical channel, a lens set, an image generator, and a projection lens all located along an optical pathway of the...
US20070211226 Light leakage preventive structure for front projector  
A light leakage preventive structure for front projector includes an octagonal mask fixedly disposed before a lens of the projector, so that a projected image sequentially passes the lens and the...
US20090103057 AUTOMATIC IRIS DIAPHRAGM MODULE  
An automatic iris diaphragm module is adapted to a projector having a casing, and is capable of adjusting a size of luminous flux of a light source of the projector. The automatic iris diaphragm...
US20070126995 LIGHT GENERATOR OF A PROJECTOR  
A structure of a light source for a projector includes a light source, a housing and a shade. The housing includes a transparent surface. The light source is disposed in the housing. The shade is...
US20100066984 DISPLAY DEVICE AND MOBILE APPARATUS  
A display device is provided that includes: a projection unit emitting a light flux including image information; and a divergence angle controlling unit controlling a divergence angle of the light...
US20070046908 Method of controlling projection-type display device and projection-type display device using the same  
A method of controlling a projection-type display device and a projection-type display device using the same optimizes the contrast ratio of a screen regardless of ambient brightness conditions. A...
US20060119803 Projector having an object detector  
The invention provides a projector having a light source, a display device to modulate light emitted from the light source, a lens device to project light emitted from said light source via said...
US20070008502 Light quantity adjustment apparatus  
A light quantity adjustment apparatus is disclosed. A light quantity adjustment apparatus, comprising a rotation part having an aperture for adjusting the quantity of light from a light source, a...
US20080218109 Aperture driving apparatus and projection type image display apparatus  
An aperture driving apparatus includes a swing unit and a stationary unit. The swing unit includes an aperture plate that partially blocks a light, a coil that constitute a voice coil motor for...
US20080088805 OPTICAL PROJECTION APPARATUS AND LIGHT INTEGRATION ROD THEREOF  
A light integration rod is suitable for an optical projection apparatus to uniform the light beam provided by a light source of the optical projection apparatus. The light integration rod has an...
US20080024736 Shell structure  
A shell structure is for containing one of a plurality of optic-lenses with different assembling positions to respectively assemble different kinds of optic equipments. The shell structure...
US20060164609 Projector having light-shielding module and image processing method thereof  
A projector having a light-shielding module. The projector comprises a housing, a light engine, and a light-shielding module. The housing has a aperture. The light engine includes a projection...
US20070216877 Projection Module and Projector Incorporating Same  
The invention relates to a projection module intended to project an image on a screen defining a specified projection plane. The module comprises: an objective, which itself comprises means for...
US20060023174 Projector apparatus having an aperture-controllable diaphragm  
A projector apparatus includes: a light source, a digital micromirror device for modulating the light beams emitted from the light source into photo signals, an illuminating lens unit for guiding...
US20100053566 COMPACT PROJECTOR  
A compact projector includes a main control board, an optical engine positioned on the main control board, a heat dissipation assembly, a light source control board, and a...
US20070195288 Projection type image display device and brightness control method thereof  
A projection type image display device and a brightness control method are provided. The projection type image display device may include a projection lens to project light onto a screen, a light...
US20060268243 Projector with improved aperture member  
Provided is a projector that includes a light source, an illumination optical system, an image reproduction unit, an aperture member and a projection unit. The illumination optical system...
US20080094584 PROJECTION APPARATUS AND LAMP THEREOF  
A projection apparatus including a lamp, a light valve and a projection lens is provided. The light valve is disposed on a transmission path of an illumination beam from the lamp for converting...
US20050001997 Projection-type image display  
A projection unit is provided with two stop-changing mechanisms, which are respectively disposed in an illumination optical system and a projection optical system to adjust an effective...
US20090201469 ILLUMINATION SYSTEM  
The present invention relates to an illumination system (10, 50) for a projection display device. The system comprises an integrator arrangement (14, 58) having at least one entrance aperture (16,...
US20070064203 Image projecting apparatus having variable stop  
An image projecting apparatus has an integrator for generating plural secondary-light-source images for generating illumination light with a uniform intensity; and a variable stop mechanism...
US20070153238 Optical diaphragm, projector, correction parameter calibrator, and correction parameter calibrating method  
An optical diaphragm for adjusting an amount of an incident light beam, includes: light shielding vanes that are configured movably, and move to change an opening area enabling a passage of the...
US20050179869 Method and apparatus for minimization of unwanted light in optical and image projection systems  
A method and apparatus for enhancing performance of a projection system by blocking incident angle light rays without increasing the F-number of the system includes a skew filter having a shaped...
US20060164608 Projection optical system  
A projection optical system includes an illumination system, a first adjusting device for adjusting an aperture size of the illumination system, a projection lens, a second adjusting device for...
US20140185020 PROJECTION UNIT AND METHOD FOR CONTROLLING THE PROJECTION UNIT  
A projection unit may include a reflector-lamp arrangement which is designed to emit light during operation, wherein the light radiates toward an aperture, wherein a setting unit is provided, with...
US20110235000 PROJECTOR  
A projector includes: an illuminator that emits illumination light; a light modulator that modulates the illumination light emitted from the illuminator; and a projection system that includes a...
US20050243288 Method and apparatus for a reduced thickness television display using shallow angle oblique projection  
A method and system for delivering a television display in a very thin cabinet is presented. The reduction of cabinet depth is achieved by the use of suitable optics to create an image ray that is...
US20110310359 LIGHT MODULATION DEVICE AND PROJECTOR  
A light modulation device includes: a reflective light modulation element which modulates an incident light; a holding section which holds the reflective light modulation element; and a light...
US20070215017 Screen Splitter  
A resiliently bendable planar panel has a side that when juxtaposed laterally with a video display screen traverses the width of the screen, and is supported by a plurality of legs. The panel...
US20080049195 IRIS UNIT, AND IMAGE PROJECTING APPARATUS AND DISPLAY APPARATUS HAVING THE SAME  
A display apparatus, includes: a tube part; and an iris unit comprising a main disk body accommodated in the tube part and comprising a main opening formed in a light path, a shutter member...
US20080239272 Reduced lens heating methods, apparatus, and systems  
In one embodiment, a system is disclosed that includes an illuminator having a source that produces light waves having a first wavelength, and a mask. The mask includes at least one partly opaque...
US20140285779 PROJECTION DISPLAY DEVICE  
A projector 100 comprising a light source (130), a reflective light bulb (DMD 180), a projection optical system, an illumination optical system (120) that guides light emitted from the light...
US20090237626 PROJECTION OPTICAL SYSTEM AND LIGHT AMOUNT ADJUSTING COMPONENT USED IN THE SAME  
A light amount adjusting component adapted a projection optical system is provided. The light amount adjusting component has a light incident surface upon which a light beam impinges, and the...
US20130120719 LIGHT SOURCE MODULE AND PROJECTION DEVICE USING THE SAME  
A light source module includes a shell, a fixed ring, an optical element, a first cover and a light-emitting element. The shell is formed as a tubular shape. The fixed ring, the optical element...
US20110096302 PROJECTOR  
In at least one embodiment of the disclosure, a projector includes a light shield unit that shields a portion of a light emitted from a light source. The light shield unit is driven by a drive...
US20070296930 Illumination optical system and projection type display apparatus  
The invention provides an illumination optical system that guides light emitted from light source device 1 to DMD 2, the illumination optical system including: light tunnel 20 that uniformizes...
US20060092388 OPTICAL PROJECTION APPARATUS  
An optical projection apparatus includes an illumination system, a projection lens unit, a reflective light valve, a first beam breaker and a second beam breaker. A light beam is provided by the...
US20070263179 Projection Type Display Unit  
A projection type display system able to suppress an increase of a outer size of a set, able to improve the contrast, and excellent in silence, having light modulating units 122 (R, G, B) for...
US20130215396 LIGHT-ADJUSTING UNIT AND PROJECTOR  
A light-adjusting unit includes: a light-shielding plate centered an optical axis of an incoming light flux and configured to block the light flux in response to the amount of rotation; a rotation...
US20080018864 IMAGING SYSTEM AND PROJECTION APPARATUS  
An imaging system suitable for projecting an image beam provided by a light valve unto a screen is provided. The imaging system includes a projection lens and a light beam modulation module. The...
US20070002478 System and method for digital film simulation  
The invention includes a system for imparting at least one characteristic of photographic emulsion to an image. The system includes a light transmissible medium at least partially provided with...
US20070121078 Light-valve projection systems with light recycling  
A light-valve system adapted to recycle light reflected from the light-valve in order to improve the brightness of the image. Illustratively, this reflected light is the dark-state light of an...
US20080304021 LIGHT-SHIELDING MODULE AND PROJECTION APPARATUS USING THE SAME  
A light-shielding module including a bracket, a pendulous member, a shielding member, a first magnet, a second magnet and a first coil is provided. The pendulous member has a first end and a...
US20090122277 PROJECTION LENS WITH EXTERIOR STOP  
The disclosed embodiments relate to a system and method for medium wide-angle projection system. An exemplary embodiment of the present technique comprises an imaging system configured to create...
US20070242238 Projector using laser as light source  
A projector includes a laser source, a collimate lens, a deflection reflector, and a deflection controller coupled to the deflection reflector. The laser source generates a laser beam, which...
US20110235001 LENS BARREL ASSEMBLY HAVING IRIS DIAPHRAGM DEVICE AND PROJECTOR  
A lens barrel assembly has a first groove formed in a stationary barrel. A second groove is formed in a rotatable barrel. A diaphragm control plate portion is disposed between an inner surface of...
US20100328610 DUMP PATH LIGHT INTENSITY SENSING 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...
US20090244496 IMAGE DISPLAY DEVICE  
A light-quantity adjusting function of a diaphragm used for light quantity control for improving the contrast of a projected image is controlled to cancel light quantity variation due to variation...
US20090051885 LIGHT SHIELD USED IN PROJECTOR  
A projector includes a casing, a light source, and a heat dissipation device. The light source and the heat dissipation device are installed inside the casing. Two openings are formed at two sides...
US20070273842 Method And Apparatus For Inhibiting A Subject's Eyes From Being Exposed To Projected Light  
A method of inhibiting a subject's eyes from being exposed to projected light when the subject is positioned in front of a background on which an image is displayed comprises capturing at least...

Matches 1 - 50 out of 126 1 2 3 >