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US20080018861 Light collectors for projection systems  
Disclosed herein are light collectors for use in projection applications. The light collectors gather light from surface emitting sources (e.g., LEDs) of differing color (or same color in some...
US20080013051 POLARIZING BEAM SPLITTERS INCORPORATING REFLECTIVE AND ABSORPTIVE POLARIZERS AND IMAGE DISPLAY SYSTEMS THEREOF  
An image display system including an illumination source configured to emit a light beam, a polarizing beam splitter, and an image-forming device. The polarizing beam splitter includes a...
US20090128782 MEMS Based Projector  
A MEMS-based projector may be included in various user devices. A selective fold mirror, a MEMS-based projector, and a polarization rotator may be oriented to reflect a beam within the device for...
US20120140184 DUAL TOTAL INTERNAL REFLECTION POLARIZING BEAMSPLITTER  
A dual TIR prism has an input prism, a wedge prism, an output prism, and a reflective polarizer. The dual TIR prism is configured to receive an optical beam at an entrance surface, to pass the...
US20080218697 Polarization luminaire and projection display  
A polarization luminaire is disclosed having a light source, a system of the optical integrator, a polarized light splitting device for splitting a light emitted from the light source into two...
US20050206846 High performance projection system with two reflective liquid crystal display panels  
The projection system comprising a dichroic filtering device (204), optically between a polarizing beam splitter (203) adapted to split light from a light source (201) into light beams of desired...
US20080079903 ADHESIVES INHIBITING FORMATION OF ARTIFACTS IN POLYMER BASED OPTICAL ELEMENTS  
Inhibiting formation of optical artifacts in a multi-layer film polarizer of an optical imaging assembly that includes a polarizing beam splitter. The beam splitter may include a multilayer...
US20150362728 SEMITRANSPARENT DIFFUSION-POLARIZATION LAMINATE AND USAGE THEREFOR  
Provided is a polarization laminate that allows a distinct transmission image to be displayed on a translucent screen while maintaining the visibility of a projection image from a projector even...
US20090141244 MEMS based projector having a prism  
A MEMS-based projector may be included in various user devices. A selective fold mirror, a MEMS-based projector, and a polarization rotator may be oriented to reflect a beam within the device for...
US20050185140 Lighting device and projection type display system  
To provide a miniaturized lighting device that emits light appropriate for illumination of a display system and a projection type display system including the lighting device. A lighting device...
US20060197914 Four panel projection system  
A four-panel liquid-crystal-on-silicon (LCOS) projection display system utilizes four available ports of a beam splitter and polarization filter architecture to provide a four-color component...
US20050219464 Semiconductor light-emitting device and video display adopting it  
An LED technology is adapted to a video display in order to ensure high image quality. A semiconductor light-emitting device having a flip-chip structure is adopted as a light source. Polarized...
US20090128781 LED multiplexer and recycler and micro-projector incorporating the Same  
A micro-projector comprises an LED layer, a light pipe coupled to the LED, a LCOS panel, a projection lens, a PBS, an aperture layer coupled to the output end of the light pipe which has a...
US20050225728 Image display apparatus  
An image display apparatus of a projection-type is provided which includes an illuminator with a light source, an optical modulator illuminated by light illuminator and which makes spatial...
US20120062848 PROJECTION TYPE DISPLAY APPARATUS  
A projection type display apparatus includes: a light source section including at least one light source for emitting coherent light; an image light generating section for modulating the light...
US20070206155 Steady state surface mode device for stereoscopic projection  
A modulator and system used to display motion pictures is provided. The design comprises a sheet polarizer and a SMD electro-optical modulator configured to operate in a steady state...
US20060238716 Light source module and image projection apparatus employing the same  
A light source module and an image projection apparatus employing the same are provided. The light source module includes: a light-emitting chip installed on a base to generate and emit...
US20130286356 DISPLAY UNIT AND ILLUMINATION DEVICE  
An illumination device includes a laser light source, and a polarization control device configured to control a polarization state of laser light emitted thereon from the laser light source, and...
US20110019112 Projection System with Enhanced Brightness  
A digital display system, such as a projection system, utilizing image forming elements such as LCDs or other light valves with means to enhance display brightness which may include the use of at...
US20060250581 Display apparatus using LCD panel  
A projection apparatus (10) has an illumination section with a light source (20) providing a substantially unpolarized illumination beam of multiple wavelengths. A multiple wavelength polarizer...
US20110234982 PROJECTION DISPLAY  
A projection type image display apparatus is provided which includes a housing to hold an optical system including multi-lenses, a polarized-light conversion element and a color separation...
US20160357013 DISPLAY APPARATUS  
A display apparatus includes a light guide that propagates image light while totally reflecting the image light, an optical system that introduces the image light into the light guide, a light...
US20070085973 POLARIZING BEAM SPLITTER  
A polarizing beam splitter is disclosed that includes a first prism, a second prism, and a reflective polarizing film disposed between the first prism and the second prism. The first prism...
US20060092380 Clean-up polarizer and gamma control for display system  
In some embodiments, an optical engine for a display system utilizes a wire grid clean-up polarizer for polarization cleanup. In some embodiments, a liquid crystal component, separate from the...
US20090122272 PROJECTION APPARATUS USING SOLID-STATE LIGHT SOURCE ARRAY  
An illumination apparatus for a digital image projector, the illumination apparatus has a plurality of solid-state laser arrays, each laser array with one or more rows of laser. A light combiner...
US20070242228 Compensation schemes for LCoS projection systems using form birefringent polarization beam splitters  
An LCoS projection system provides a form birefringent polarization beam splitter (PBS) having an output modulator port, a light modulating panel, and a biaxial compensation element between the...
US20070013871 Light-emitting diode (LED) illumination in display systems using spatial light modulators (SLM)  
System and method for enhancing performance in an SLM display system using LED illumination. A preferred embodiment comprises computing a set of spectral characteristics, analyzing the set of...
US20050024591 Reflective polarization valve engine and projection display using the same  
Reflective polarization valve engine and projection display are disclosed. Instead of prism PBS, the projector applies wire-grid polarizers with advantages of higher heat-resistance, no limitation...
US20070153236 Polarized Projection Display  
A projection display system includes (1) a first polarizer, (2) a transparent screen, (3) a second polarizer on the transparent screen, and (4) a projector for projecting an image through the...
US20050275807 Color combining optical system and image projection apparatus  
A color combining optical system is disclosed, with which light of a plurality of colors can be combined while reducing the loss of light due to fluctuations in the incidence angle on a...
US20110102688 REAR PROJECTION SYSTEM AND REAR PROJECTION SCREEN  
To provide a rear projection system, which offers a high transparency and a high efficiency of projection, a rear projection system is proposed, comprising: a projector (18), and a projection...
US20160091786 SCREEN CONFIGURATION FOR DISPLAY SYSTEM  
An optical configuration for a display system includes a front screen, a first microlens array, and a second microlens array. The front screen has optical properties to absorb ambient light and...
US20130057786 POLARIZED PROJECTION ILLUMINATOR  
The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the...
US20090148688 OPTICAL MATERIALS  
An optical material having a reflecting membrane, an enhanced reflecting membrane, or an anti-reflecting membrane formed with coating is provided. The optical material includes an optical material...
US20120002172 LIGHT SOURCE APPARATUS AND PROJECTION DISPLAY APPARATUS  
A light source apparatus according to an embodiment includes: a light source that emits narrow-band exciting light; a polarization adjusting element that adjusts a polarization state of the...
US20080049191 PROJECTOR INCLUDING OPTICAL DEVICE  
A projector that includes an optical device is provided. The optical device includes a first flat plate formed of a negative uniaxial refractive material, the first plate having an incidence plane...
US20090153579 Speckle reduction method  
A projection apparatus includes a laser light source for projecting an illumination light to a plurality of spatial light modulators (SLMs) through an illumination optical system. The projection...
US20130076800 SCANNING PROJECTION APPARATUS AND SCANNING IMAGE DISPLAY  
In a light beam scanning projection apparatus which scans a light beam emitted from a laser light source, an image display apparatus is configured including a plurality of light beams, a...
US20130003022 SCAN-TYPE IMAGE DISPLAY DEVICE AND SCAN-TYPE PROJECTION DEVICE  
A polarizing prism is shaped in the form of a hexahedron. A polarizing beam splitter film (PBS film) is arranged approximately in a diagonal direction of the hexahedron. The polarizing prism holds...
US20100060867 PSEUDO LIGHT PIPE FOR COUPLING OF LIGHT FOR DUAL PARABOLOID REFLECTOR (DPR) SYSTEM  
A pseudo light pipe comprises an input end, an output end and a light transmission medium. The input end collects rays of light from a light source. The output end outputs and collimates the rays...
US20080117385 LIQUID CRYSTAL DEVICE AND PROJECTOR HAVING THE SAME  
A liquid crystal device includes: a liquid crystal cell which includes liquid crystals operating in a vertical alignment mode, in which optic axes of the liquid crystals are inclined and oriented...
US20070132954 PROJECTOR AND OPTICAL PART  
A projector includes an optical element, and a polarizing plate that is bonded to the optical element through an adhesive layer. The polarizing plate has a polarizing layer, and a support layer...
US20060055891 Projection display systems for light valves  
Projection display systems for light valves such as liquid crystal display panels, and in particular to the use of color component rotators, such as retardation filters, to provide for improved...
US20160370589 IMAGE DISPLAY APPARATUS  
An image display apparatus adapted to dispose in front of at least one eye of a user and including a frame, a projecting optical system, at least one waveguide and at least one lens is provided....
US20080055550 Microprojector  
A microprojector comprising an illumination optical system, including light sources for green, red and blue laser light beams, first through third focusing lenses arranged in the optical path of...
US20070165185 ILLUMINATION SYSTEM AN PROJECTION APPARATUS USING THE SAME  
An illumination system including a first polarized light source, a second polarized light source and a polarization beam splitter is provided. The first polarized light source is suitable for...
US20110267586 FOUR-PIECE PROJECTION LENS SYSTEM AND THE PROJECTION APPARATUS USING THE SAME  
A projection apparatus includes a light source emitting an illuminating beam, a light valve receiving the illuminating beam to create an image beam, and a projection lens system arranged on a path...
US20140268063 LIGHTING DEVICE AND PROJECTOR  
A lighting device includes a light source that emits a first light flux of a first wavelength band, a fluorescence light emitting element including a phosphor layer which produces, when excited by...
US20090168026 FRONT PROJECTION SCREEN, A METHOD OF CONSTRUCTING THE SAME AND A FRONT PROJECTION SYSTEM INCLUDING THE SAME  
An apparatus, a method of fabricating a front projection screen and a front projection system is provided. In one embodiment, the apparatus includes a front projection screen including an image...
US20080062385 Method of monitoring polarization performance, polarization measurement assembly, lithographic apparatus and computer program product using the same  
The invention relates to a method of monitoring a polarization performance of an optical system in a lithographic projection apparatus. The lithographic projection apparatus has an illumination...

Matches 1 - 50 out of 173 1 2 3 4 >