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7370977 |
Optical projection system and image display device having the same
An optical projection system which creates pincushion distortion of an image and then creates a barrel distortion of the pincushion-distorted image to compensate for the pincushion distortion and...
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7367679 |
Light source for a display device
A light source for a display device. The light source comprises a light-producing element, a reflector disposed around at least a portion of the light-producing element, a housing disposed...
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7364301 |
Vehicular optical system
An optical system for vehicle operating monitoring is disclosed. The optical system includes at least one illuminator that illuminates a profile of a vehicle operator and an imager in optical...
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7357537 |
Light source for projector and projection type image display apparatus using thereof
Provided is a projector light source which can effectively project a light beam having a sufficient volume from a lamp as a light source, and which is highly accurate and is excellent in...
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7350930 |
Illuminating unit with reflective collimator and image projection system including the same
An illuminating unit includes a reflector including a parabolic reflecting surface and an incident portion and an exit portion intersecting with each other a light source to emit a beam onto the...
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7350927 |
Image display apparatus
The present invention includes a reflection portion which light-modulates three primary color lights by three rectangular reflective liquid crystal light modulators, then color-combine the...
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7347592 |
Light source for a projection system having a light absorption layer
A reflector for use in a projection system comprises an anodized metal substrate having a metal oxide layer. The metal oxide layer has a plurality of pores. A light absorbing pigment is deposited...
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7344291 |
Illuminating device and backlight device employing the illuminating device
Disclosed is an illuminating device which, as a light source for a backlight device, mixes the colors of light rays of three prime colors radiated by light emitting diodes to emit white light. The...
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7334902 |
Wide angle scanner for panoramic display
A wide angle display system includes a linear array projector, a curved display surface, and an n-sides scanning mirror. The projector is configured to project an image along an optical axis to the...
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7331678 |
Method and system for a thermal architecture and user adjustable keystone in a display device
A rear projection display device. The display device includes a screen and a base to which the screen is mounted. The base includes a plurality of vents to allow air to flow in and out of the base,...
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7325957 |
Polarized light emitting diode (LED) color illumination system and method for providing same
A polarized light illumination system includes a light emitting diode (LED) ( 601, 602, 603 ) for providing a source of light that is directed to a non-polarizing dichroic combiner ( 607 ) for...
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7325956 |
Light-emitting diode (LED) illumination system for a digital micro-mirror device (DMD) and method of providing same
A light illumination system for projecting a color image to a digital micro-mirror display (DMD) panel includes a light-emitting diode (LED) illumination assembly ( 101, 102, 103 ), a dichroic...
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7322706 |
Device for adjusting light intensity for discharge lamp projectors
The invention relates to a device for adjusting light intensity for discharge lamp projectors with an optical assembly that contains a spherical mirror and a discharge lamp, and a Fresnel lens...
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7320521 |
Optical engine architectures
An optical engine architecture that operates as either a two-imager or a three-imager optical engine. The optical engine uses a first PBS cube and a second PBS cube having an optical axis between...
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7318647 |
Optical engine apparatus
An optical engine apparatus to magnify and project an image beam formed by a display device using light on a screen includes a light source to emit the light, a reflection mirror to reflect the...
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7317565 |
Projection viewing system
A projection viewing system of simplified construction and high illumination efficiency, which enables at least two images varying with viewing directions to be simultaneously displayed in a...
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7306342 |
Notch-filter reflector
A reflector includes a body that defines an optical surface. A reflective surface is disposed on the optical surface including a stack of dielectric layers defining at least one notch filter.
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7306343 |
Image rotator
One embodiment of an image rotator includes an image reversion structure that rotates an image by a predetermined number of degrees, and securement structure adapted to removably secure the image...
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7303283 |
Projection type display
A first light-source unit and a second light-source unit are disposed in such a manner that those respective optical axes intersect approximately perpendicularly to each other, a reflective...
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7300157 |
Pixel-shifting projection lens assembly to provide optical interlacing for increased addressability
A projection display system includes a projection lens assembly that has multiple projection lens elements that are configured to receive light imparted with display information by a pixelated...
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7293877 |
Projecting apparatus and projecting and displaying apparatus
The present invention includes a light source which emits a plurality of lights having different wavelength areas, a plurality of image forming devices which are arranged on respective optical...
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7287862 |
Compact image projection module
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be...
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7281805 |
Projection-type display apparatus
A thin-shaped projection-type display apparatus capable of displaying a high-quality image without causing any ghost image is provided. The projection-type display apparatus includes a screen...
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7258451 |
Optical projection device and adjusting method thereof
An optical projection device including an illumination system, a reflective light valve and a projection lens is provided. The adjustable reflection sheet is disposed behind the adjustable rod...
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7259918 |
Projection device
A projection device includes an image source unit, a first projecting optical system, an intermediate optical system, and a second projecting optical system. The image displaying area of the image...
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7255445 |
Projection type image display device
A projection type image display device is formed including projecting means for projecting an image onto a screen for image display by scanning laser light. The laser light includes a plurality of...
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7252394 |
Laser projection display and illumination device with MEMS scanning mirror for indoor and outdoor applications
A projection display system includes a light source emitting a light beam, and a reflecting mirror system for scanning the light beam over an image to illuminate the image. The light source can be...
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7252389 |
Projection optical system
A projection optical system is disclosed with which undistorted images can be obtained at any image position within a specification range, and whose projection angle can be changed. The projection...
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7246907 |
Projection type image display apparatus using reflective image display elements, reflective polarizing plates and auxiliary analyzers
A compact, light projection type image display apparatus based on reflection image display devices which provide high brightness without contrast deterioration caused by light leakage associated...
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7222969 |
Split image optical display
A video image is displayed from an optical panel by splitting the image into a plurality of image components, and then projecting the image components through corresponding portions of the panel to...
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7222976 |
Optical device and projector
An optical device is disposed with: a swollen portion that is attached to the underside of a reflective surface of a reflective mirror, swells in an outward direction of the reflective mirror and...
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7210797 |
Projector optical unit, projection type image display apparatus, and rear projection type image display apparatus
In a projection type image display apparatus, a projector optical unit for projecting an image onto a screen while magnifying a size of the image to be projected with respect to an original size of...
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7210796 |
Optical apparatus and projector
An optical apparatus with plural optical components, including a reflection mirror provided in an optical path of light beams emitted from a light source, and a case for housing the optical...
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7202918 |
LCD projection system and illumination device thereof
The present invention relates to an illumination device of an LCD projection system. The illumination device comprises a light source, a quarter-wave retardation and a wire grid polarizer. The...
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7182468 |
Dual lamp illumination system using multiple integrator rods
An illumination system includes a first light source, a second light source, a first light integrating device and a second light integrating device. Each light integrating device includes an input...
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7182471 |
Projection type display apparatus
A projection type display apparatus comprises a rod type integrator 6 having a solid rod structure, in which light being emitted from a lamp and entering an entrance face 6 a , as a focal plane,...
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7165846 |
Dichroic mirror and projection-type display unit
On a transparent substrate ( 1 ), a first alternating periodic layer ( 5 ) including low-refractive-index layers ( 2 ) and high-refractive-index layers ( 3 ), a second alternating periodic layer (...
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7159990 |
Method of manufacturing reflective mirror, illumination device, and projector
A reflective mirror manufacturing method for manufacturing a reflective mirror used in an illumination device including an arc tube including a light-emitting portion and a reflective mirror...
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7159991 |
Projection type image display device
A rod integrator, which has a light incident face and a light exit face, inclines its axis at a predetermined angle with respect to a light emitting direction of a light source. The light incident...
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7152977 |
Solid state light engine optical system
An optical system for use in projection based displays includes a plurality of solid state light sources associated with a plurality of total internal reflection based compound hyperbolic emitters,...
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7152981 |
Projection illumination system with tunnel integrator and field lens
A projector illumination system includes a tunnel integrator incorporated with a field lens at its output end. One advantage of using the field lens is to form an image of the entrance end of the...
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7137708 |
Infra-red and ultraviolet filtration in projection systems
A method of generating a projection beam for projecting an image includes collimating the projection beam and filtering infra-red or ultraviolet radiation from the projection beam after the...
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7138769 |
Device for operation of a high pressure discharge lamp and a projector device
A device for operating a discharge lamp of the alternating current operating type has a high pressure discharge lamp with a silica glass discharge vessel in which a pair of opposed electrodes are...
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7131736 |
Efficient illumination systems for reduced étendue color video projection systems
An illumination system is provided with at least a first reflecting device that has a first focal point at the arc of an arc lamp. The second focal point of the reflecting device is located at the...
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7131735 |
Light source device, optical device, and liquid-crystal display device
A light source device, comprising a light guide block that is provided with an inner wall capable of reflecting light and is shaped as a hollow component to form a light guide, and a point light...
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7128425 |
Projector
A projector comprises a light source, an optical system for illumination, a reflective light modulating device having a plurality of reflective elements arranged in matrix form to be illuminated by...
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7118229 |
Illumination optical system and projector using the same
The present invention provides a technique for readily changing the design of a projector. A projector comprises: an illumination optical system; a light modulation device; a projection optical...
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7108381 |
Projector apparatus
There is provided a projector apparatus having an image forming optical system including a plate fixed to a housing, and a plurality of reflecting mirrors attached to the plate through respective...
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7080910 |
Method and system for a thermal architecture and user adjustable keystone in a display device
A method and system for a thermal architecture and user adjustable keystone in a display device is described. The system includes a screen, a lens to project images, and one or more mirrors to...
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7075692 |
Optical scanning apparatus and projecting apparatus
The present invention provides an optical scanning apparatus which has a light modulating element capable of changing the propagating state of light, an illuminating optical system for illuminating...
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