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6585379 |
Projector and method of manufacturing a light modulation device
There is provided a method of manufacturing a light modulation device that does not produce scattered reflection comprising: a step of forming a release layer whereby a release layer that produces...
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6582081 |
Projection display device
The present invention discloses a projection display device, including a light source supplying light having a s-wave light and a p-wave light; a first polarizing beam splitter including a...
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6582080 |
Image projection system
An electronic projector has a projection system that includes a spatial light modulator (SLM) for importing image information to the projected light beam. The light beam leaving the SLM is...
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6578968 |
Image projection system having an extra optical system for at least partly re-illuminating the image display system
An image projection system includes an illumination system and an image display system with at least one reflective image display panel for modulating. An illumination beam is supplied by the...
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6578970 |
Point-like lamp with anode chimney
A high-intensity arc lamp comprises a glass envelope with a pressurized gas atmosphere. A cathode and an anode structure are disposed within. A pointed tip of the cathode is juxtaposed by a central...
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6575577 |
Multiple light valve lighting device or apparatus with wide color palette and improved contrast ratio
An apparatus is disclosed comprising a lamp which produces a first light which may be a white light; a first light valve, a second light valve, a first color separator, and a first aperture device....
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6577429 |
Laser projection display system
A display apparatus includes a laser light source for emitting a light beam having a coherence length; a beam expander for expanding the light beam; a spatial light modulator; beam shaping optics...
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6575579 |
Projecting device with a cylindrical color tube for displaying color images
A projecting device with a cylindrical color tube for displaying color images. The projecting device includes a light source for generating a trichrome light beam, a cylindrical color tube for...
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6574030 |
Multi-mode display using an electronically controlled mirror
A display includes a light source and a filter positioned to receive light from the light source. An electronically controlled mirror can direct light through the filter in a first mode of...
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6568816 |
Projection system and method for using a single light source to generate multiple images to be edge blended for arrayed or tiled display
A projection system includes multiple imaging heads for projecting a plurality of images, which may or may not be partially overlapped and edge blended to form a projected composite image. The...
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6568815 |
Picture projection apparatus
An image projection apparatus according to the present invention includes a prime color component selection unit, made up of a temporal color separation sub-unit and a spatial color separation...
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6568811 |
Color image display device and projection-type image display apparatus
Belt-like regions illuminated by red, green and blue light beams are formed on an image display panel, and the illuminated regions are moved continuously. Each pixel of the image display panel is...
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6565211 |
Projection type display device
A projection type display device, having a light beam flux converting optical system which makes plural beam fluxes from light emitted from a light source and converts the each beam flux into a...
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6565212 |
Projection display apparatus, and information processing system and image recording/reproducing system using the same
In a projection display apparatus, light from a light source is separated into a plurality of beams having different wavelength regions, a plurality of image display elements ( 123 r, 123 g, 123...
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6561652 |
Optical assembly for reflective light valves
An optical system for reflective mode light valve full color display, and more particularly a compact and highly optically efficient trichroic prism assembly (TPA), and a polarizing beam splitter...
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6561654 |
Image display device
The present invention relates to an image display device that is suitably applicable to, for example, a projector using an ultrahigh-pressure mercury lamp as a light source. In a light source of...
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6560001 |
Spatial optical modulating device
A spatial light modulating device includes: an electrically-addressed type element for being addressed by electric signals representing information to be written, the electrically-addressed type...
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6558003 |
Attachable/detachable silencer and projection type projector apparatus with the same
The present invention is a projection type projector apparatus which is provided with a light source portion, a light bulb and a cooler for cooling at least the light source portion, with a...
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6550919 |
Spectral light division and recombination configuration as well as process for the spectrally selective modulation of light
A spectral light division and recombination configuration has an incident face for light to be divided, at least one emergent face for recombined light and a spectrally selective division and...
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6552754 |
Laser video projector using optical pumping valve
A laser video projector using an optical pumping valve is provided. The video projector according to the present invention forms an image using an optical pumping valve including a laser resonator...
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6547398 |
Projection-type image display apparatus and method
A projection-type image display apparatus having a structure adapted so that the efficiency of the use of light and resolving power thereof can be enhanced. The projection-type image display...
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6547399 |
Image engine having multiple image sources with different response times for color operation
A full color image projection system is provided using two non-color-specific image sources and color-specific filters. The system is capable of projecting an image using one primary color from one...
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6547396 |
Stereographic projection system
A projection system for projecting a stereographic image onto a viewing surface is provided, the stereographic image including a left-eye image and a right-eye image. The projection system includes...
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6547400 |
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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6540380 |
Illumination system for projector
An illumination system for a projector having a color management system (CMS). The illumination system comprises a light source, a light-converging system for converging light beams coming from the...
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6540362 |
Scrolling multi-stripe color illumination system
Single panel scrolling color projection systems using three (red, blue and green) scrolling color stripes have been demonstrated to be adequate for television images. However, computer graphics...
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6540361 |
Display optical apparatus
A display optical apparatus has an illumination optical system, a light modulating device, a projection optical system, and pixel shifting means. The illumination optical system includes a color...
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6540363 |
High reliability display system
A high-reliability display system is disclosed. The display system includes a plurality of projection channels. Each projection channel projects a substantially mutually exclusive portion of an...
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6536904 |
Reduced color separation white enhancement for sequential color displays
A method and apparatus for reducing the color separation in sequential color display systems. The disclosed approach adds a white (clear) segment 923 to the color filtering system 92 and...
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6538775 |
Holographically-formed polymer dispersed liquid crystals with multiple gratings
A multicolored reflection liquid crystal display device includes a pair of substrates having a reflective holographic polymer dispersed liquid crystal (H-PDLC) film disposed therebetween. The...
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6536903 |
System and method for improving contrast in an electro-optical imaging system
An off-axis projection system includes a polarizer, a reflective light modulator, an analyzer, and an aberration compensation element. The polarizer polarizes an illumination beam to form a...
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6536902 |
Projector
Projector is provided, including a light source, a color wheel for splitting two, or more than two color beams from the beam from the light source, a rod lens for making a distribution of the color...
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6535256 |
Color liquid crystal display device
A color liquid crystal display device which separates white light in to component colors. The separated colors are modulated by a reflective liquid crystal display. A lens group between the light...
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6530663 |
Projecting device for displaying electrical images
A projecting device for displaying electrical images. The projecting device has an illumination device for emitting a polarized trichrome light, three modulating devices for modulating three...
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6532044 |
Electronic projector with equal-length color component paths
An electronic (e.g., LCD) projector combines multiple projection lens assemblies with equal color component optical path lengths to provide improved display images and a compact arrangement. In one...
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6530666 |
Focusing projection displays
A system detects reflected light from a projection screen associated with a projection display. Reflected light may be analyzed to determine whether the projector is in focus. This information may...
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6529332 |
Color integrating optical device and display optical system
A color integrating optical device for integrating different color rays from a plurality of display devices each of which has a condenser lens in front thereof and emitting the integrated color...
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RE38006 |
Projector
A projection display device projector capable of improving cooling efficiency of the power unit includes a light source lamp unit, a projection lens unit, an exhaust fan provided near the...
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6525785 |
Projection apparatus using L-shaped dichroic prism set having a cubically glass block juxtaposed to a dichroic prism for passing light beams without changing direction of the light beams
The present invention proposes a transmission-type liquid crystal projection display, which comprises an incident light source, a light-separating means, three transmission-type liquid crystal...
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6520644 |
Cylindrical color wheel and fabricating method thereof and projector using the same
A cylindrical color wheel that is adaptive for making a slim-type picture projector. In the cylindrical color wheel, a color drum is provided with a plurality of color filters for transmitting only...
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6520649 |
Image projection device and associated method
An image projection device adapted to project an image on a remotely disposed display is provided. The image projection device comprises a plurality of image elements, each image element being...
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6520645 |
Projection-type display device and method of adjustment thereof
A projection-type display device for displaying an image using a projector device emitting optical images spatially modulated by reflection-type liquid crystal panels onto a screen, wherein phase...
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6517211 |
Illumination device for projection-type display and projection-type display apparatus
The illumination device has a simple structure and a small size, can obtain a sufficient illumination light amount, and can improve illumination ability, with high reliability and high performance...
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6517212 |
Projection type display
In a projection type display, light rays emitted from two light sources pass through an integrator made up of fly-eye lenses or the like, and proceed through predetermined light paths including...
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6517209 |
Color-separating prism utilizing reflective filters and total internal reflection
A color-separating prism for producing narrow-spectral light from broader spectral light includes first, second, and third component prisms that form first and second adjacent pairs of faces. The...
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6513933 |
Projector and display system
An image projector, having a light source, an LCD panel into which a light emitted from the light source enters, and a projection lens into which the light emitted from the LCD panel enters. There...
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6513934 |
Projection apparatus and observation apparatus
A projection apparatus having a light source, a color separating system for separating the light from the light source into a plurality of color beams, a plurality of light modulating elements for...
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6511184 |
Color image display apparatus
Three colors of light beams from a light source travel via a first optical system to strike a reflecting surface of a rotating polygon mirror, or mirrors, at different angles without overlapping....
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6512609 |
System and method for correcting projection distortions in a hologram producing system
A system and method are disclosed to replace complex fast cylindrical lens (FCL) systems used for producing one-step horizontal parallax only holographic sterograms. A substantially monochromatic...
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6508554 |
Projection-type image display apparatus
Red, green and blue light beams from, a light source portion travel via a first optical system and enter a reflecting surface of a rotating polygon mirror at different angles so as not to overlap...
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