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7453645 Spectral purity filter, lithographic apparatus including such a spectral purity filter, device manufacturing method, and device manufactured thereby  
A spectral purity filter includes an aperture, the aperture having a diameter, wherein the spectral purity filter is configured to enhance the spectral purity of a radiation beam by reflecting...
7450311 Optical display systems and methods  
Optical display systems and methods are disclosed.
7445345 Optical display device and projection-type display device  
A projection-type display device 1 including a light source 10 , an optical integrator 20 , dichroic mirrors 30 and 35 , a reflecting mirror 36 , a relay optical system 40 , parallelizing...
7438480 Optical module, optical transceiver, and optical joint sleeve  
An optical module 1 comprises a first optical element F 1 , a first light receiving subassembly PD 1 , a second optical element F 2 , a second light receiving subassembly PD 2 , a light emitting...
7438419 Color separation and synthesis systems, color separation systems and color synthesis systems, illumination optical systems, projection optical systems, and projection display devices using these systems  
Color separation and synthesis systems, color separation systems and color synthesis systems, illumination optical systems, projection optical systems, and projection display devices using these...
7434945 Illuminating device and projection type video display apparatus  
A projection type video display apparatus is provided with an LED array for emitting light in red, an LED array for emitting light in green, and an LED array for emitting light in blue. On a...
7429111 Two-panel color management system  
The invention provides a two-panel color management system for projection display applications, wherein color sequencing is accomplished using achromatic beam switching and static color separation....
7429110 Projector-type image display apparatus  
At least one exemplary embodiment is directed to a projector which includes several optical elements, reflective devices and beam splitters, arranged to reduce back reflection effects. At least one...
7420740 Device for combination of light of different wavelengths  
The present invention relates to a method for combining or for splitting the beam paths of substantially nonpolarized light of at least three different wavelength intervals. The splitting or the...
7420177 High-resolution-imaging system for scanned-column projectors  
A system and method for generating a high-resolution image using a scanned-column projector is disclosed. The method includes the operation of generating a time-varying line image. A further...
7417799 Multi-primary color display  
A device ( 300 ) to produce a color image using four or more primary colors. The device may include four or more transmissive spatial light modulators ( 309, 310, 311, 312 ) to modulate four or...
7416306 Laser projector  
A reflection-type laser projector ( 100 ) projects modulated laser beams outputted from a laser projection unit ( 40 ), on a screen, wherein a reflector ( 112 ) as a constituent of the screen ( 110...
7414793 White light splitting and homogenizing systems and methods  
In accordance with an embodiment of the present invention, an apparatus includes a hollow tubular body with a polygonal cross-section and a highly reflective interior surface, a first filter, and a...
7413310 Spectral light division and recombination configuration as well as process for the spectrally selective modulation of light  
A system and method for separating and combining three spectrums of light has a polarizing beamsplitter, an input retarder or polarizer located adjacent a first side of the polarizing beamsplitter,...
7411733 Compound-eye imaging device  
A compound-eye imaging device comprises: an optical lens array with integrated optical lenses; a stop member for shielding unnecessary ambient light from entering the optical lenses; a...
7405882 Image display device and projector  
Aspects of the invention can provide an image display device for modulating light from a light source on the basis of display image data to display an image. The image display device can include a...
7401925 Image projection system  
An image projector system includes an LED controller and first and second LEDs, a dichroic mirror. The LED controller controls the first and the second LED to emit first and second color lights,...
7400439 Uniform illumination system  
A compact and efficient optical illumination system featuring planar multi-layered LED light source arrays concentrating their polarized or un-polarized output within a limited angular range. The...
7397606 Meniscus head up display combiner  
A meniscus combiner for a head up display (HUD) system. The meniscus combiner includes a meniscus lens; a multi-layer dichroic coating formed on a first surface of the meniscus lens; and, an...
7396131 Projection assembly  
Projection assemblies are provided herein for use in a display system. According to one exemplary embodiment, the projection assembly includes an illumination source and a plurality of co-planar...
7396130 Optical system, image projection apparatus and method thereof  
An image projection apparatus. The image projection apparatus comprises a light source and LCD panel. The LCD panel comprises a plurality of pixels and color filters thereon. Light from the light...
7394986 Flat top optical filtering component  
The invention relates to wavelength-selective optical filters for allowing light of a narrow optical spectral band, centered around a wavelength (λ c ) to pass through them, while reflecting the...
7394597 SLM projection display with series DMD illuminator  
The addition of DMD illumination modulator(s) 702 in series with projection SLM(s) 706/709 to produce high-performance projection displays with improved optical efficiency, reliability, and...
7391573 Substrate-guided optical devices  
There is provided an optical device, having a light-transmitting substrate having at least two major surfaces ( 26 ) parallel to each other and edges; optical means ( 16 ) for coupling light waves...
7390095 Projector  
Aspects of the invention can provide a projector that includes three optical modulators which modulate respectively red light, green light, and blue light, a color-synthetic optical system which...
7390094 Method and apparatus to achieve a neutral dark state in image projection systems  
An absorptive layer is added to an image display system. The absorptive layer is selected to compensate for tint in a black state of a displayed image. In a Liquid Crystal On Silicon (LCOS) based...
7388714 Independent focus compensation for a multi-axis imaging system  
A multiple-axis imaging system having optical elements whose optimal image positions can be individually adjusted, comprising a plurality of optical array elements having respective optical axes...
7385760 Optical element and optical pickup device used therewith  
An optical element for reflecting light has a substrate and a thin film formed on the substrate. The thin film reflects light in a predetermined reflection wavelength band so that the thin film...
7375896 Digital light-processing projection apparatus and beam splitter module thereof  
A digital light-processing projection apparatus includes a light source, a beam splitter module and an optical combiner module. The beam splitter module is used in conjunction with an optical...
7372640 Enhanced color contrast lens  
A color contrast enhancing lens made from adhering two different lenses and a membrane together. It includes a color enhancing lens whose specific component will selectively absorb the yellow light...
7362507 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...
7362506 Ultra-bright light engine for projection displays  
A projector incorporating a prism and a plurality of light valves for modulating light that passes though the prism, wherein the color splitting-converging prism includes a dichroic coating having...
7360906 Projection optical system unit and projection-type image display apparatus using the same  
A projection optical system unit has a lower pedestal. The lower pedestal has first and second tubular portions opened to each other. An image formation device holding plate for a DMD is mounted on...
7359122 Prism assembly  
A prism assembly includes a first prism having a first front face, a first side face, and a first rear face, a second prism having a second front face parallel to the first rear face, a second side...
7354162 Projector  
A projector includes: a light source device that emits substantially parallel illumination light; a first lens array having a plurality of first small lenses each of which divides the illumination...
7352513 Prism assemblies and kernel configurations for use in projection systems  
Kernels are designed in different configurations based on design properties of an enclosure or other requirements. A prism assembly having various types of filters, waveplates, beam splitters...
7350929 Method for controlling a lighting device  
A method for controlling a lighting device that consists of at least a lighting source, a color sequential device and a single light valve consisting of an array of light processing elements that...
7345823 Optical system, color information displaying method, optical deflecting device, and image projection displaying apparatus  
An optical system is disclosed, including: an optical deflecting array including a plurality of optical deflecting devices arranged in a two-dimensional array, each of optical deflecting devices...
7334900 Three-dimensional image projecting apparatus  
The invention provides a three-dimensional image projecting apparatus. The three-dimensional image projecting apparatus comprises a light signal generator, a filter device, a focusing device and a...
7333271 Dichroic mangin mirror  
An optical system having at least one dichroic Mangin mirror. The optical system has a front-end optical sub-system or a light source operative to emit an optical beam. The optical beam is...
7333270 Dual band night vision device  
A night vision device provides both an amplified visible light image and an infrared image, overlayed upon each other so that they appear to be a single image. A user may select to utilize either...
7330314 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...
7330305 Laser scanning confocal microscope with fibre bundle return  
The invention provides a confocal microscope or endoscope, having a source of coherent light for illuminating a sample, and an imaging optical fibre bundle ( 82 ) for receiving return light,...
7324286 Optical beam steering and switching by optically controlled liquid crystal spatial light modulator with angular magnification by high efficiency PTR Bragg gratings  
Non-mechanical optical beam steering and switching is produced by optically controlled liquid crystal spatial light modulator with angular magnification by high efficiency volume Bragg gratings...
7322703 Light emitting apparatus and projector  
An light emitting apparatus which illuminates an illumination area has a first light source which emits a first light, a second light source which emits a second light, a wheel which is provided...
7320534 Display device  
Disclosed is a display device at a low cost which enhances the color purity of light to be projected, and which resists deterioration due to ambient light such as infrared ray. This display device...
7319216 Light receiving unit and image taking apparatus  
A first prism 11 a and a second prism 12 a are joined together on a face-to-face basis. A dichroic mirror 13 a is interposed into the junction plane to reflect only G-light. A first imaging...
7307793 Fusion night vision system  
A fusion night vision system having image intensification and thermal imaging capabilities includes an edge detection filter circuit to aid in acquiring and identifying targets. An outline of the...
7307787 Beam splitting prism, method of manufacturing beam splitting prism, and all-optical switching device  
In order to obtain a beam splitting prism which a beam can be split with simpler configuration in a state in which an optical path length is precisely controlled, there is provided a beam splitting...
7300156 Prism assembly for separating light  
A prism assembly is provided. The prism assembly comprises a first prism component having a triangular cross-section along an optical path, a second prism component having a first quadrilateral...