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Document Title |
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7453478 |
Address generation in a light modulator
A light modulator includes a control unit configured to receive an image input signal, and an array having a plurality of pixels arranged in a plurality of rows. The control unit is configured to...
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7434946 |
Illumination system with integrated heat dissipation device for use in display systems employing spatial light modulators
Disclosed herein is an illumination system for use in display systems employing spatial light modulators. The illumination system comprises a fastening mechanism for securing the bonding of the...
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7401927 |
Method of illumination and display apparatus
A display apparatus displaying an image includes a light source, a light valve, a light cross-section converter and a light scanning mechanism. The light valve has a screen formed of a plurality of...
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7399088 |
Pupil mismatch in a collimated display system
An image projection system has a first lens with a defined entrance pupil. An image source has an image field and a defined exit pupil. The exit pupil of the image source is configured such that...
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7396130 |
Optical system, image projection apparatus and method thereof
An image projection apparatus. The image projection apparatus comprises a light source and LCD panel. The LCD panel comprises a plurality of pixels and color filters thereon. Light from the light...
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7387389 |
Image display system and method
An image display device includes an image processing unit, a light source assembly, an optical modulator assembly, and a projection lens assembly. The image processing unit is configured to receive...
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7360899 |
Beamsplitting structures and methods in optical systems
Various embodiments involving structures and methods for illumination can be employed, for example, in projectors, head-mounted displays, helmet-mounted displays, back projection TVs, flat panel...
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7357519 |
Optical projection device
An optical projection device including a light source, a housing, an imaging unit, a projection lens and a dust protection device is provided. The light source is adopted for providing a light...
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7350928 |
Projection display system
A projection display system comprises an illumination device, a prism assembly, a projection lens and a reflective light valve. The prism assembly has a first light incident surface, a first light...
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7322703 |
Light emitting apparatus and projector
An light emitting apparatus which illuminates an illumination area has a first light source which emits a first light, a second light source which emits a second light, a wheel which is provided...
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7303284 |
Image projecting apparatus
An image projecting apparatus projects an image formed on a display device in accordance with input image data, onto a projection surface with illumination light emitted from a light source, to...
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7283181 |
Selectable color adjustment for image display
A display system is configured to produce a color image formed of a plurality of differently colored images and may include at least one light source that directs light along an optical path, and...
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7278743 |
Single panel illumination system and projection display apparatus using the same
The present invention provides an illumination system and projection system using the same. The present invention can eliminate the reflective light on the internal optical surface of the optical...
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7275835 |
Projector for changing driving frequency for driving light source lamp within allowable frequency range
A projector according to the present invention comprises a lamp driving control circuit for driving an ultra-high pressure mercury lamp at a driving frequency which is changed within an allowable...
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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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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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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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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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7213920 |
Image display apparatus
According to the present invention, there is provided an image display device including a non-luminous reflection type spatial light modulating element, illuminating system to illuminate the...
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7173639 |
Spatial light modulator data refresh without tearing artifacts
A pulse width modulation driven display such as a spatial light modulator, which updates pixel data between PWM periods of consecutive frames, to avoid tearing artifacts in the perceived display...
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7163299 |
Illumination unit and projection image display having the same
An illumination unit for a projection image display. The illumination unit includes a light source, an integrator which converts light emitted from the light source to have uniform optical...
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7118226 |
Sequential color recapture for image display systems
A method for transmitting light in an image display system includes generating a beam of light from a light source. The beam of light is directed at a first segment of an electronically-switchable...
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7118230 |
Holder frame, optical device and projector
The invention provides a holder frame, optical device and projector which can prevent the substrate from deviating in position, the substrate from being compressed at the outer periphery and color...
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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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7114816 |
Fixing plate, optical device and projector
The invention provides a fixing plate, optical device and projector capable of preventing against color unevenness occurrence and pixel deviation. Specifically, in each of the four sides of a...
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7104652 |
Image display device and projector
To provide an image display device and a projector having a brightness or an excellent utilization efficiency of the light by improving the display performance of a moving picture. A projector...
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7104651 |
Color scrollable projection system
A color scrolling projection system is provided, including a light source, a color separator, a color scanner, a light valve, and a control circuit. The light source generates and emits light. The...
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7080909 |
Illumination apparatus and projector display apparatus
An illumination apparatus which directs light from a light source to an illuminated area. The illumination apparatus comprises a plurality of light emitters as the light source, a lighting unit...
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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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7066605 |
Color recapture for display systems
A sequential color display system using a white light source to create a full color image projected onto an image plane. A dynamic filter, typically a series of moving dichroic filters, generates a...
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7066602 |
Projection type image display system capable of color scrolling
A highly-efficient projection system is provided, including a light source, a color separator, a scrolling unit, a light valve, and a projection lens unit. The color separator separates an incident...
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7055966 |
Illuminator and projector
When a video signal is inputted to a projector ( 10 ) through a video input terminal, a luminance peak value of an image of the video signal is detected by an image-analyzing circuit ( 61 ) to be...
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7033031 |
Optical system and projection type image display apparatus equipped with optical system
A light guiding member ( 40 ) for reflecting therein light entering through a light entering surface ( 40 a ) several times to cause light having a uniform illumination distribution to outgo from a...
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7029126 |
Single panel color image projection system
In one embodiment, a color projection system includes a lamp; at least one prism configured to diffract light from the lamp into a diffracted beam; and an LC microdisplay panel or MEMS panel...
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6995811 |
Brightness improving apparatus for projection television
A high-brightness projection television is provided which includes a screen having a first lens for refracting an incident beam into a convergent beam, a second lens for refracting the beam...
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6975366 |
Digital display system using pulsed lasers
An image projection system comprises a laser source that generates a series of periodic pulses having substantially uniform energy content, a spatial light modulator, and a modulator driver...
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6935745 |
Optical device, method for manufacturing optical device, and projector
The present invention provides an optical device that achieves reduction in size, reduction in manufacturing costs, improved image quality, and so forth, by simplification and the like of a panel...
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6926413 |
Supporting mechanism for solid type rod integrator
The supporting structure for a rod integrator 300 includes, for example, holding members 350 a , 350 b for holding the rod integrator 300 , and supporting units 360 a , 360 b for supporting...
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6906852 |
Wavelength discriminated image dithering
A method and system for providing a dithered image is provided. In one embodiment, a projector system for providing a dithered image includes a light source comprising a first and a second light...
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6862047 |
Image projection apparatus
In a color image projection apparatus using a color wheel to illuminate a spatial optical modulator with light in color sequence, light reflected from the color wheel is added to light having...
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6859239 |
Projection system with folded optical path
A high throughput, compact image display apparatus comprises a source unit to generate a spatially uniform light beam that propagates along a first beam path in a first direction. The image display...
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6843567 |
Highly efficient scrolling projection system and method
A projection system including a light source, a rectilinearly reciprocating cylindrical lens array, an optical separator, a light valve, and a projection lens unit. The light source emits a beam....
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6830342 |
Optical system and display device using the same
There is provided a display device in which an optical efficiency is improved using a color drum. The display device includes a road lens for totally reflecting an incident light and changing a...
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6683657 |
Projection display device and application system of same
A projection display device has a large dynamic range in addition to a large-sized screen and high definition. In a projection display device for projecting an image formed by an optical modulator...
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6642969 |
Color wheel for a falling raster scan
A dichroic spiral color wheel ( 108 ) having many spiral-shaped color filters ( 206 ). The boundary between adjacent color filters follows the spiral of Archimedes, defined as r=aθ, where r is the...
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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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6580470 |
Display apparatus for displaying an image representative of an interlaced video signal
A display apparatus includes means for inputting an interlaced video signal comprising signals representative of successive fields in image data produced by scanning successive image frames. Fields...
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6573951 |
Non-terminating pulse width modulation for displays
A method for using pulse-width modulation in displays. A series of PWM sequences is established. Each subsequent sequence clears the previous sequence before it, eliminating the need for a separate...
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6563551 |
High contrast polarizing optics for a color electro-optic display device
A projection-type color image display system uses a reflective liquid crystal (LC) light modulator ( 24 ) and a polarizing beam-splitter ( 22 ) for separating the incoming and reflected light....
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6426781 |
Laser video projector
A laser video projector for modulating light from a laser light source by an acousto-optic modulator (AOM) according to a video signal and projecting video information to a screen using a scanner...
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