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7261453 |
LED polarizing optics for color illumination system and method of using same
A light illumination apparatus and method for providing a light source includes light emitting diodes (LEDs) ( 101, 102, 103 ) and optical waveguides ( 104, 105, 106 ) associated with the light...
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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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7255448 |
Pixelated color management display
A display system includes a light source, a spatial light homogenizer, and imaging optics. The spatial light modulator has a plurality of modulator pixels. The display system also includes a...
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7256841 |
Projection display apparatus and method for projecting image onto a screen
A projection-type display apparatus for projecting an image onto a screen includes a light source, a signal processing unit for processing an input image signal to output a first image signal...
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7252392 |
Illumination apparatus and image projection apparatus using the illumination apparatus
An illumination apparatus which applies light from light emitting members to a region to be illuminated. The apparatus includes an emitted light quantity control unit which controls emitted light...
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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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7241015 |
Optical unit and projection type image display unit using it
An optical unit includes a light source, a color separator, reflection-type image display elements, a color synthesizer, a reflection-type polarization plate, and an optical chassis. The optical...
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7237901 |
Projection type image display device, rear projection type image display device, optical unit, and screen unit
The present invention provides a projection type image display device capable of affording a bright display of a high saturation and capable of ensuring a high reliability of optical parts. The...
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7239449 |
Illumination module for color display
The invention relates to an illumination module for color display, preferably for use in data or video projectors as well as rear projection television sets, in which the light from at least three...
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RE39702 |
Projector
An output light from an a light source lamp unit 8 in a projection-type display apparatus projector illuminates liquid-crystal light valves 925 R, 925 G and 925 B for three colors...
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7234822 |
Light propagation structure and optical display device of optical system, light propagation method of optical system, and display method of optical display device
A projection-type display device 100 including a light source 10 , a luminance modulation light valve having a plurality of pixels capable of independently controlling a transmission factor T 1...
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7232224 |
Simultaneous color illumination
According to one embodiment of the present invention, a method for color illumination for an image display system includes field sequentially operating an array of emitters to generate a sequence...
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7232227 |
Image display device
The image display device is configured to include the light source including a plurality of semiconductor light-emitting elements, a parallelizing unit including a plurality of cell lenses arranged...
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7230768 |
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...
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7227594 |
Display device using optical modulator equipped with lens system having improved numerical aperture
Disclosed herein is a display device using an optical modulator equipped with a lens system having an improved numerical aperture. The display device includes numerical aperture reducer for...
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7222968 |
Illumination system with separate optical paths for different color channels
Illumination systems are disclosed, which include illumination channels of different colors and at least one image-forming device. Each illumination channel, in turn, includes a bank of light...
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7222965 |
Optical unit and a projection image display apparatus using the same
The present invention provides a projection image display technology capable of correcting astigmatism due to use of a polarized-beam splitter, thus ensuring high-resolution projection images. A...
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7222967 |
Image display optical system and projection type image display apparatus
An image display optical system according to the present invention has an illumination optical system, a plurality of image display elements, a color separation/combination optical system, and a...
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7220005 |
Projection type video display apparatus
An object of the invention is to achieve a high intensity, a compact structure, a cost reduction and a heat radiation of a liquid crystal panel, in a projection type video display apparatus...
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7213923 |
Emission of visible light in response to absorption of excitation light
In accordance with embodiments, viewable images can be created in glass. Viewable images may be created in glass by using a projector which projects ultraviolet light to excite light emitting...
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7215477 |
Zoom lens and image display apparatus including the zoom lens
Provided is a projection lens, including: a plurality of moving lens units that move on an optical axis for zooming; and a plurality of plastic lenses containing plastic, in which when a focal...
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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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7207677 |
Image display device and projector
A display device using a tilt-mirror device and a projector. The image display device may include a first color-ray light-source for supplying a G-ray, a second color-ray light-source for supplying...
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7198371 |
Image displaying apparatus
An image displaying apparatus employs quartz wave plates and displays images of high contrast. The quartz wave plates in the image displaying apparatus are each arranged between a polarizing beam...
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7195356 |
Split-path color switching system and method
The present application describes a retarder stack color switch using a single polarization analyzer for reflective-mode projection displays. The single polarization analyzer permits additive mode...
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7192140 |
Projector
A project is provided that includes a light source including three light emitting units in which a plurality of LEDs are disposed and which emits red light, green light, and blue light. A liquid...
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7188957 |
Projection systems and methods for both color and monochromatic displays
A projection system for both color and monochromatic displays includes a color wheel having filter portions of different colors and a clear portion; and a drive system configured to keep the color...
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7185986 |
Projection type video display apparatus, light deflection device in projection type video display apparatus, and direct-view type video display apparatus
In a projection type video display apparatus comprising means for circularly scrolling and irradiating irradiated light in a direction perpendicular to the line direction on a hold-type display...
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7185984 |
Illumination optical system and projector comprising the same
Brightness of optical equipment can be adjusted as required. An illumination optical system includes a light source, a lens array composed of a plurality of lenses for splitting light emitted from...
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7184103 |
Laser video projector having multi-channel acousto-optic modulator, and method and circuit for driving the same
Provided are a laser video projector having a multi-channel acousto-optic modulator, and a method and circuit for driving the laser video projector. The laser video projector includes a light...
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7175279 |
Two-stage projection architecture
A two-stage light projection system is provided for projecting an image comprising a matrix of light pixels having modulated luminance. A first imager is configured to modulate a light band on a...
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7175284 |
Projection type display apparatus
A projection type display apparatus includes a housing having a first side having an air intake opening and a second side having an air exhaust opening, a light source for supplying light, and a...
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7175281 |
Method and apparatus to increase the contrast ratio of the image produced by a LCoS based light engine
A transmissive LCD is placed in optical series with pixels of an image. The transmissive LCD is set to full transmissivity when bright pixels of the image pass through the transmissive LCD....
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7175280 |
Projection display with polarization beam splitter
A projection system including a light source, a color separator, a scrolling unit, a light valve, a wire grid polarization beam splitter, and a projection lens unit is provided. The color separator...
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7176909 |
Color correction circuit and image display apparatus including the same
A 2.2th-power to 1 st -power conversion circuit 102 uses a 2.2th-power curve to convert an input R signal ‘a’ into an R signal ‘b’ expressed in a 1 st -power signal space. Offsets, which...
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7172288 |
Display device including a spatial light modulator with plural image regions
A display device includes a spatial light modulator and a light generator. The spatial light modulator may have an array of modulating elements with a plurality of image regions. The light...
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7172287 |
Reflective illuminating optical system
A reflective illuminating optical system on silicon, more particularly, to an illuminating optical system is provided, in which R, G, and B signals reflected from a LCoS panel (Liquid Crystal on...
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7172289 |
Projection apparatus with colored light path combination through a transparent optical element
A projection apparatus is formed employing a transparent optical element to receive a plurality of colored light bundles from a plurality of light sources along a plurality of optical paths and to...
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7168810 |
Method and apparatus for arranging light emitting devices in projection systems
Embodiments of this invention include a system, method and apparatus for combining the light paths of a plurality of colored light emitting devices into a single light path with two reflecting...
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7165847 |
Method and system for light processing using a gold segment
A method for generating images includes shining a beam of light through a filter wheel to produce filtered light. The filter wheel includes red, green, and blue color segments and a fourth color...
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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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7163293 |
Projection system and method
A projection system including light emitting units, a scrolling unit, and a light valve. The light emitting units emitting light beams of different wavelengths. The scrolling unit has spirally...
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7156522 |
Projection-type display devices with reduced weight and size
Described herein are display devices that provide projection-type video output and use diode lasers to generate light. For example, one set of diode lasers may produce red light, while a second set...
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7156521 |
Projector for compensating chromatic aberration of magnification
A projector having a cross-dichroic prism ( 260 ) synthesizing three kinds of red, green, and blue light emitted from liquid crystal panels ( 250, 252, 254 ); and a projection lens ( 270 )...
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7156520 |
Color separating optical system, image display optical system, and projection image display apparatus
A color separating-combining optical system is configured to separate illumination light into a plurality of color spectrums, guiding these color spectrums to respective image display elements, and...
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7156525 |
System and method for managing projector bulb life
Projector bulb life is managed to achieve desired performance parameters, such as a maximum life mode or maximum brightness mode, by sensing bulb luminance and applied the sensed luminance with a...
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7154671 |
High efficiency electromagnetic beam projector, and systems and methods for implementation thereof
This invention relates to electromagnetic wave beam paths, formation of the beam, illumination of programmable electromagnetic wave field vector orientation rotating devices (“PEMFVORD”) with...
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7154554 |
Flat moldable HDTV display
An apparatus comprising a plurality of columns bound together, configured to display a single row of pixels scanned out from top to bottom. It also comprises a timing control unit to synchronize...
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7150532 |
Projection system with scrolling unit
A projection system including a light source, a polarization conversion system, a reflection mirror, a color separator, a scrolling unit, a light valve, and a projection lens unit is provided. The...
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7147331 |
Method of driving a spatial light modulator and projector
To reduce the color break-up and to provide high quality projection images. A method of driving a spatial light modulator, including generating a sub-frame pulse signal for a first colored light R...
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