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6715885 |
Display device with screen having curved surface
Light from a light source 23 is processed on the image display element 30 by an image signal outputted from an image control section 19 to be projected on the screen of a predetermined curved...
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6715901 |
Image projector system having a light source that includes at least four light emitting diode modules
An image projector system includes a light source, a light-modulating device, and a projector lens set. The light source includes a rectangular housing formed with a light-transmissive output port...
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6712472 |
Color field sequential projector including polarized light beam splitter and electronically controllable birefringence quarter waveplate
A color field sequential projector includes an electronically controllable quarter waveplate positioned between a reflection device and a polarized light beam splitter, wherein the controllable...
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6705730 |
Picture display device
It is an object of the present invention to implement a display providing high optical efficiency irrespective of the size of a light valve, and capable of enhancing the uniformity of the luminance...
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6698892 |
Achieving color balance in image projection systems by injecting compensating light in a controlled amount
The image projection system of the present invention improves either one or both of the brightness and color balance of a projected image. The system includes an auxiliary light source from which...
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6698893 |
Optical device suitable for separating and synthesizing light
An optical device is provided comprising a plurality of prisms, two dichroic surfaces having different wavelength characteristics from each other, and a prism surface that satisfies a total...
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6698895 |
Projection image display
A white light beam from a light source portion ( 201 ) is separated into respective light beams of red, green and blue by a color separation optical system ( 204 ). The respective light beams are...
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6698894 |
Scrolling color light engine with improved color uniformity of the illumination field and single panel projection display system incorporating same
A light engine for a single-panel scrolling-color projection system includes a source filter for filtering out unwanted components from the output spectrum of the source lamp prior to scrolling,...
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6692129 |
Display apparatus including RGB color combiner and 1D light valve relay including schlieren filter
The optical system includes a plurality of light modulators, one or more combining filters, and an optical relay system including a filter. Each light modulator modulates a corresponding incident...
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6669343 |
Image display system
An image display system utilizes primarily non-absorptive polarization components to polarize light illuminating an imaging device. The non-absorptive polarization components reduce cost and...
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6671101 |
Color combining optical element, color separation optical element, and projection type display apparatus using them
Provided are a color combining optical element capable of forming a good projected image on a screen surface while permitting scaling-down of entire apparatus and a projection image display...
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6666557 |
Reflection type projector
A reflection type projector including a critical angle prism for changing the path of light. The reflection type projector includes a light source for generating and emitting light, an image...
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6663243 |
Projection device comprising a prism system including at least one totally internally reflecting surface at a boundary between two members of different refractive indices within the prism system
A projection device includes one or more deformable mirror arrays ( 803 ) arranged to spatially modulate incident light. A totally internally reflecting surface ( 809 ) is arranged to direct light...
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6654156 |
Image display system
An image display system, e.g. for projection type displays, has an electrically addressed spatial light modulator or EASLM ( 1 ) and an optically addressed spatial light modulator or OASLM ( 5 )....
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6652103 |
Reflective-type liquid crystal projection system
A reflective-type liquid crystal projection system consists of a dichroic prism that diffracts the light beam generated by a light source module into two colored light beams of different...
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6650461 |
Method of manufacturing spatial light modulator and electronic device employing it
A spatial light modulator is constructed from a conductive silicon mirror substrate and a glass electrode substrate including sodium, anode-bonded together. The silicon mirror substrate has...
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6648475 |
Method and apparatus for increasing color gamut of a display
A method and projection system ( 10 ) for increasing the color gamut of images projected onto a display surface ( 140 ) by using four or more light sources ( 12 ), where the light sources ( 12 )...
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6644812 |
Display apparatus and projection type display apparatus
The present invention provides a display apparatus which can prevent the unevenness of the quantity of light in case of display giving priority to color reproducibility and can also correct the...
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6644813 |
Four prism color management system for projection systems
A 4-prism color management device ( 600 ) comprised of first, second, third, and fourth prisms ( 610, 612, 614, 616 ). The first prism ( 610 ) is adjacent to the second prism ( 612 ) with an air...
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6644815 |
Total reflection prism and projector with the same
A projection system is provided that utilizes a prism which guides color components from a light source to a display without the use of reflection, and that reflects image encoded light from the...
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6646772 |
Holographic illumination system
Disclosed is an apparatus and method of illuminating an image display via an electrically switchable holographic optical element. The method includes a first electrically switchable holographic...
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6644814 |
LED-illumination-type DMD projector and optical system thereof
A DMD projector of small size, lightweight and long life, which employs LED arrays as a light source for brighter screen. According to the projector, projection light from sets of a LED array, a...
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6646806 |
Polarized light source system with dual optical paths
The present invention provides an enhanced an enhanced polarized light source for a display system. In one embodiment, the invention includes a light source to produce light having multiple...
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6643069 |
SLM-base color projection display having multiple SLM's and multiple projection lenses
An optical unit ( 20, 30 ) for color projection display system that has three SLMs ( 21, 31 ) and three projection lenses ( 27, 37 ). Each SLM ( 21, 31 ) receives light of a different primary...
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6637888 |
Full color rear screen projection system using a single monochrome TFT LCD panel
A rear screen projection system uses a single monochrome liquid crystal display (LCD) panel for displaying full color images. In one embodiment, an apparatus for projecting an image includes an...
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6637890 |
Small reflective type liquid crystal projection device
The present invention provides a small reflective type liquid crystal projection device, which comprises an X-prism, three PBSs, two dichroic mirrors, at least three totally reflective mirrors,...
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6637887 |
Multi-display device
A multi-display device synthesizes partial images, by using multiple projectors to construct one image. Each projector has an illumination device, a lattice-like lens array, a display, and a...
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6634755 |
Illuminating device and projector
In an illuminating device in which a light from a light source is separated into three color lights differing in optical path from one another by a color separating system, and light modulating...
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6631997 |
Light-source device and projection type display device
A light-source device comprising: a rod integrator having an injection end and an emitting end; a lens unit for collecting a luminous flux emitted from the emitting end; and, a diaphragm. The rod...
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6631992 |
Projector color correction to target white points
A system for adjusting the color of a light source comprises a first polarizer to polarize the light source, a fixed retarder with its optical axis at a first angle to the polarized light, an...
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6631993 |
Display system
A projecting display system includes a light source ( 101 ) which produces light which is spatially modulated by a number of spatial light modulators ( 105, 107 ). A splitting means ( 103 ) is...
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6626539 |
Color video projection display system with low-retardance compensator film for improved contrast
A color video projection display system having an improved contrast ratio is disclosed. At least one reflective or transmissive panel, e.g., a liquid crystal on silicon (LCoS) panel, is arranged...
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6623129 |
Optical component and projector using the same
A technique for reducing surface soiling of optical components used in projectors and other devices is provided. An optical component 310 G comprises: a light transmissive member 301; and a...
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6623123 |
Optical unit, image display apparatus, and illumination adjustment method in an image display optical unit the same
The object of the present invention is to miniaturize an optical unit and an image display device. The optical unit of the present invention keeps an optical system so as to form an optical path...
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6619802 |
Multi-stripe scrolling for color projection
A multi-stripe scrolling apparatus has a beam splitter ( 13 ) that internally reflects white light onto a movable array of holographic elements ( 30, 32, 34 ) that respectively emit three different...
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6619800 |
Projector comprising a polarizer attached to a transmissive flexible plate material that bends responsive to changes in the shape of the polarizer
A projector includes an illumination system for emitting illumination light, an electro-optical device for modulating light from the illumination system according to image information, and a...
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6612703 |
Spectrally beam combined display system
A method and apparatus for generating a display is provided. In the disclosed system, each color required by the display is generated by incoherently combining the beams of tens or hundreds of...
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6609796 |
Projection type display apparatus
An analyzing-synthesizing optical system has the structure in which for each of the three primary colors of R, G, and B, there are provided a light valve for modulating incident light and a...
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6604827 |
Efficient arc lamp illuminator for projection system
An arc lamp illuminator for a projection system includes one or more polarization conversion prisms to laterally spread the arc image. A pair or triplet of projection lenses can be used with...
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6601957 |
Projection-type image displaying device
A projection-type image displaying device includes liquid crystal elements for modulating light rays having wavelength regions different from each other, a color combining optical element for...
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6598977 |
Color wheel having a bonding apparatus
A color wheel having a bonding apparatus consists of a carrier and a filter set. The carrier is a circular disk and has a first surface and a second surface opposite to each other. The first...
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6592226 |
Unit for mounting electro-optical device and projector using the unit
A unit is provided for mounting an electro-optical device, such a liquid crystal panel, on a prism so that aberration in picture elements is suppressed so as not to deteriorate image quality. The...
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6593996 |
System for projecting or displaying images
The invention relates to a system for projecting or displaying images comprising a valve exhibiting a plurality of image-forming elements having a light transmission coefficient which can be...
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6594090 |
Laser projection display system
A display apparatus, includes a laser light source for emitting a light beam; a beam expander for expanding the light beam; a spatial light modulator; beam shaping optics for shaping the expanded...
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6594089 |
Projection lens shifting mechanism and rear projection television
A projection lens shifting mechanism comprises a projection lens unit in the shape of a cylinder for projecting incoming image light, a flange integrated with the projection lens unit, a projection...
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6588905 |
Polarizing device and projector
A polarizing device includes: a first prism substantially formed in a triangular shape; a second prism substantially formed in a triangular shape and bonded to the first prism; and a polarization...
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6591022 |
Illumination system for scrolling color recycling
Distortion optics are used to efficiently couple a spiral color wheel and an orthogonal modulator. Light 602 from a light source enters an aperture in a reflective end of a recycling integrator...
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6588906 |
Single-panel color image display apparatus and method thereof
A single-panel color image display apparatus includes a plurality of switchable color filters selectively transmitting and/or reflecting a plurality of color light beams. In the single panel color...
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6590714 |
Color combining optical system and projection type display apparatus having the same
The present invention has as its object to provide a projection type display apparatus which suffers little from the occurrence of the distortion of the surface of a dichroic mirror in a color...
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6585378 |
Digital cinema projector
A digital cinema projector ( 100 ) for projection of color images onto a display surface comprises a light source ( 116 ), which produces a beam of light. Beam-shaping optics ( 130 ) homogenize and...
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