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7401926 Space light modulating apparatus, projector including same, process for manufacturing microstructure element used in same, and microstructure element manufactured by the same process  
A space light modulating apparatus includes a modulating unit that modulates incident light based on an image signal including a plurality of pixels and a light-shielding part placed between the...
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...
7382537 Optical film having prismatic faces directly formed with micro-lenses thereon  
An optical film comprising: a transparent supporting (or base) layer; a prismatic layer consisting of a plurality of prisms integrally formed on the supporting layer; and a plurality of...
7365907 Rear projection image display apparatus  
A compact rear projection image display apparatus in which the projection distance in a projection optical system is substantially reduced and no reflection mirror is used, thereby eliminating a...
7339740 Image decoder system  
An image decoder system includes a series of optically or digitally encoded images mounted on a series of flat surfaces. A decoding lens is positioned over the encoded images. The decoding produces...
7327519 Spatial light modulator and projector  
A spatial light modulator has a modulating unit, a refracting part, and a flat part. The modulating unit includes a matrix of pixels, and a light-shielding portion between each of the pixels. The...
7309149 Prism sheet, backlight assembly and liquid crystal display device having the same  
A prism sheet, a backlight assembly having the prism sheet, and an LCD device having the prism sheet, the prism sheet includes a first surface, a second surface and a reflecting member. A light is...
7300168 System for creating spectral displays  
A highly adaptable system for creating colorful spectral displays or for achieving a prismatic effect using visible light. The invention includes a fixed-angle or monolithic prismatic element...
7277229 Linear light beam generating optical system  
An optical system includes semiconductor lasers arranged in the direction of the slow axis of the laser beam, an optical means which makes parallel the collimated laser beams, an optical member...
7244030 Rear projection type image display device  
The present invention relates to a rear projection type image display device comprising projection lenses ( 2, 3 ) for projecting an image displayed on an image display element onto a transmission...
7224529 Microreplicated article  
A microreplicated article is disclosed. The article includes a web including first and second opposed surfaces. The first surface includes a first microreplicated structure having a plurality of...
7215474 Method and apparatus for combining optical beams  
According to one aspect of the present invention, an apparatus for optically combining light beams is disclosed. The apparatus includes a set of prism shaped doorways configured to receive output...
7212347 Reflective illumination system  
This invention discloses a reflective illumination system for supplying an optical radiation beam along a folded path for illuminating a planar object. The system includes a radiation source, and...
7199932 Prism sheet, illuminating device, surface emitting device, and liquid crystal display device  
A surface emitting device includes a light guiding plate, a light source, and a prism sheet. The light guiding plate is provided with prism portions each having a slight inclined plane and a steep...
7199930 Light modulation element  
The present invention discloses a light modulation element, having a first optical surface and a second optical surface receiving an incident light, the light modulation element comprising: at...
7195358 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Rear projection type image display device  
The present invention relates to a rear projection type image display device comprising projection lenses ( 2, 3 ) for projecting an image displayed on an image display element onto a transmission...
7190519 Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit  
This specification discloses a polarizing. element for dividing light into first and second polarized lights differing in polarized state from each other by a polarizing dividing surface, directing...
7184188 Spatial light modulator and image display device  
A spatial light modulator includes a modulator for modulating incident light in accordance with an image signal, and an optical path deflector that is provided in the neighborhood of the modulator...
7180690 Light condensing filter  
A light condensing filter has plural prisms formed on a surface of a flat substrate and on the opposite surface to the surface, and light from a light source is condensed by the plural prisms,...
7113342 Composite structure for light diffusion  
The present invention disclose a composite structure for light diffusion, including at least one carrier media layer and a microlens system comprising a plurality of microlenses thereon. A...
7113341 Spatial light modulator and projector  
A spatial light modulator includes a prism group and satisfies either of the following conditions d <0.95×λ/(2×( n...
7110183 Device for the optical beam transformation of a linear arrangement of several light sources  
The present invention pertains to an optical symmetrization device for symmetrizing the radiation emitted by laser diodes. The symmetrization device contains a cylindrical lens system ( 3 ), a...
7054067 Three-dimensional image optical system  
A three-dimensional image optical system including at least an elementary image optical subsystem constructed with plural afocal optical elements which include the first and the second optical...
7046447 Variable focus system  
A variable focus system ( 100 ) that includes an electrovariable optic (EVO) ( 108 ) and a controller ( 112 ) operatively configured for changing the focal configuration of the EVO. The EVO...
7012766 Imaging system and method employing off-axis illumination of an illumination modulator  
An imaging system includes a first off-axis illumination source for providing a first illumination field at a surface of an illumination modulator such that when the modulator is in a first...
7002750 Image capturing device  
A scanning module for scanning a document is provided. The scanning module comprises: a chassis; a light source on the chassis for emitting a light ray onto the document; a plurality of reflectors...
6985299 Optical cross-connect switch with telecentric lens and multi-surface optical element  
In the beam path of an Optical Cross Connect between the front face of a fiber block and a moveable mirror array are placed a telecentric lens and multi-surface optical element. The lens is placed...
6984041 Color-separating and -recombining optical system  
A color-separating and -recombining optical system provided between a light source and a projection lens in a projection display, has at least one prism assembly made up of at least two prisms...
6982833 Erect image resin lens array and the manufacture thereof  
A resin lens plate has, on its planar surface, convex lenslets arranged in a regular pattern with adjacent lenslets being apart from each other by a specified center-to-center pitch. Each of the...
6958861 Method and apparatus for combining optical beams  
According to one aspect of the present invention, an apparatus for optically combining light beams is disclosed. The apparatus includes a set of prism shaped doorways configured to receive output...
6933978 Focus detecting device with photoelectric conversion portion having microlens and with light blocking portion having first and second openings  
A focus detecting device comprises a first photoelectric conversion section for performing photoelectric conversion of a light beam emitted from a first pupil area of a image pickup optical unit, a...
6922430 Method and apparatus for a multibeam beacon laser assembly for optical communications  
An optical beacon is comprised of a telescope having a primary focal plane or Coudé focal plane, a plurality of fiber coupled laser sources for generating a plurality of beams, a collimator for...
6914726 Optical apparatus and viewing optical system thereof which is capable of displaying information  
A viewing optical system of an optical apparatus has an objective system for forming an image of an object and an eyepiece system for enlarging and directing the image to the pupil. The viewing...
6909080 Arrangement for and method of imaging targets at plural focal planes  
An imaging arrangement for, and method of, imaging a target at one of a plurality of focal planes, includes a two-dimensional sensor having an array of pixels for converting incident light into...
6891677 Subwavelength optical microstructure light-redirecting films  
A waveguide for use in a back lighting device includes a moth-eye structured surface. A back lighting system includes a lighting device, a display panel, and a waveguide for redirecting light...
6888679 Laser diode bar integrator/reimager  
A beam integrator system, which integrates multiple beams into fewer beams of increased intensity by using a combination of optical elements and lenses.
6865834 Display apparatus  
A display apparatus has a lens sheet with a plurality of unit columnar lenses arranged so as to be parallel to one another, and is disposed on the observation side of a display panel, spaced...
6844912 Optical system for the rotation of images taken by a film camera about the optical axis  
The invention relates to an optical system for the rotation of images taken by a film camera about an optical axis, having a controller device for the rotation of images with an adjusting motor and...
6819494 Lens-implanted optical sheet and method for manufacturing the same  
A method for manufacturing a lens-implanted optical sheet is disclosed, which includes following steps: (A) laying a patterned screen mask on an inner surface of a mold (B) coating or...
6809870 Night vision system utilizing an illumination module and a method related thereto  
A night vision system 10 is provided for detecting objects at relatively low visible light levels. The system 10 includes light source 14. The system 10 further includes a thin sheet...
6807020 Lens optimization and color correction for image projection systems  
Method and apparatus for collimating light of projected images establishes limited few designs of Fresnel lenses to accommodate conventional image projection system having a wide range of sizes of...
6771422 Real time optical information processing system  
The performance of all pattern recognition and tracking systems is limited by the depth of field of the optical imaging system used to acquire the images. Here an optical imaging system that...
6741394 Optical integrator, illumination optical apparatus, exposure apparatus and observation apparatus  
The present invention is aimed at providing a wavefront dividing type optical integrator which can yield a uniform illuminance distribution substantially over the whole illumination field formed...
6714361 Optical system for distorted imaging of an object  
An optical system for distorted imaging of an object, especially for photographic cameras, is based on a distorting optical system ( 1 ) consisting of at least one lens where at least one of the...
6600600 Projection screen and projection method  
A reflective projection screen has in a first aspect a plurality of reflective elements. The upper surface of the reflective elements is either coated or textured to interfere with reflection of...
6583938 Optical device and projection display  
An optical device which is suitable for use in a projection display comprises a spatial light modulator, such as a liquid crystal device, with a microlens array disposed on its front surface. The...
6570710 Subwavelength optical microstructure light collimating films  
A light collimating film has a sheeting having a first side and a second side, wherein the first side includes a series of linear optical elements having a primary axis running the length of the...
6563649 Display unit for vehicles  
The object is to display an image projected by a display device, installed in a vehicle dashboard, for displaying an information data in the optimum field of vision for a driver and to make a...
6545827 Optical sheet  
An optical sheet to be used for a back light unit of a liquid crystal display having at least a lamp and a light guiding plate has the following structure. The optical sheet is constituted by a...
6545814 Optical architectures for combining multiple lamps in light valve projectors  
An integrating rod ( 100 ) for combining light beams from two or more sources. A first light beam ( 104 ) enters the integrating rod 100 through a first entrance face ( 102 ) to a first...
Matches 1 - 50 out of 96 1 2 >