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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 8177371 | Light modulation element of projector, positioning method for light modulation element units, and projector A method for positioning a light modulation element of a projector. The projector including a first light modulation element unit having first through third light modulation elements and a second light modulation element unit having fourth through sixth light modula... | 05/15/2012 |
| 8167433 | Motorized adjustable convergence mechanism for projection displays A light engine for use in a projector, comprising a motorized adjustable convergence mechanism for fine adjusting the relative positions of red, green and blue channel sub-assemblies. Motors are mounted on fixed elements of the sub-assemblies for driving movable ele... | 05/01/2012 |
| 8162484 | Adjustable convergence mechanism for projection displays A light engine for use in a projector, comprising an adjustable convergence mechanism for fine adjusting the relative positions of red, green and blue channel sub-assemblies. In one embodiment, motors are mounted on fixed elements of the sub-assemblies for driving m... | 04/24/2012 |
| 8147070 | Projector A projector can form images of illumination system on respective optical paths at positions of corresponding liquid crystal display panels with respect to a light emission surface of a cross dichroic prism without relatively inverting the images and without increasi... | 04/03/2012 |
| 8132920 | Thin microprojector with switched beam bender and method of operating the same A video projector includes a reduced size spatial light modulator (400) that spatially modulates light from a light source (502) according to only a portion (e.g., ½) of a video frame at a time. A beam steerer (508, 600, 1600) steers spatially ... | 03/13/2012 |
| 8104897 | Projection optical system having an angled opitcal part and an offset optical part Provided is a projection optical system which includes a first optical part which projects an image; a second optical part having an image forming device, which forms an image using a light and emits the image to the first optical part; a third optical part having a... | 01/31/2012 |
| 8079713 | Near eye display system A near eye image display system includes an image projector, a beam combiner assembly, and an optical assembly, optically coupled between the image projector and the beam combiner assembly. The image projector projects a display image toward an optical pathway, the ... | 12/20/2011 |
| 8011787 | Image projection and detection apparatus An image projection and detection apparatus including an illumination system, a digital micro-mirror device (DMD), an optical detector, and a total internal reflection (TIR) unit is provided. The illumination system provides an illumination beam. The DMD is disposed... | 09/06/2011 |
| 7984992 | Projection optical system Provided is a projection optical system including a first part which projects an image; a second part having an image forming device which forms an image using a light and emits the image to the first part, and having an axis angled toward an axis of the first part;... | 07/26/2011 |
| 7887192 | Method and prism for improving illumination efficiency in optical projection system A method and a prism for improving illumination efficiency in an optical projection system are disclosed. Two dichroic mirrors for both red-reflecting and blue-reflecting lights are utilised for dividing illumination light in the optical projection system. Furthermo... | 02/15/2011 |
| 7828444 | Projection apparatus A projection apparatus including an illumination system, a light valve, a first optical element, a first projection lens, and a second projection lens is provided. The illumination system is suitable to provide an illumination beam, and the light valve is disposed o... | 11/09/2010 |
| 7824037 | Color separation device, imaging optical engine, and projection apparatus A color separation device includes a first color separation member having a first polarization direction changing element and a second polarization direction changing element, and a first polarization separation element, and a second color separation member having a... | 11/02/2010 |
| RE41768 | System and method employing reflective imaging devices for a projection display Projected systems (10, 12, 14, 16) include light source apparatuses (20, 24, 26) for programming narrow bands of unpolarized blue, green, and red light to associated reflective imaging devices that reflect selected patterns of the blue, green, and red ... | 09/28/2010 |
| 7717566 | Light source and projector employing light source The invention was made to provide a light source unit which can enhance the utilization efficiency of the dichroic prism which emits light that is emitted from a plurality of light sources in a direction which is parallel to an optical axis and a projector which emp... | 05/18/2010 |
| 7717567 | Lighting optical system Disclosed is a lighting optical system, including: a lighting optical system, comprising, a light separating means for separating incident light into three colored lights according to wavelength bands, and progressing the three separate colored lights for the same a... | 05/18/2010 |
| 7699473 | Image display apparatus with relaying optical system, reflective optical component and phase difference optical component An image display apparatus for a viewer to view a two-dimensional image demonstrated on an image display device as an enlarged virtual image by a virtual-image optical system. The image display apparatus includes a prism and a reflective transmitting surface for ref... | 04/20/2010 |
| 7661823 | Prism structure and projector A prism structure that includes: a plurality of liquid crystal devices each include a liquid crystal panel and a light emitting-side optical element, and generate an image light through modulation of any of a plurality of color lights in accordance with image inform... | 02/16/2010 |
| 7568805 | Illumination unit and image projecting apparatus employing the same An illumination unit includes multiple light source units to emit light having different wavelengths, and a synthesizing prism to synthesize the emitted light. The synthesizing prism includes a first triangular prism (tp) having a first outer surface (os) to transmi... | 08/04/2009 |
| 7553027 | Projector apparatus The projector apparatus of the invention constructs colored imaging light by splitting a beam of light received from a light source into beams of three primary colors and inputting the beams of three primary colors in an image synthesizing device via light adjusting... | 06/30/2009 |
| 7494225 | Projector including an illumination device with a light cut-off member and rotating prism A projector includes an illumination device, an electro-optic modulator, a projection optical system, a light source device having an ellipsoidal reflector, a light emitting tube, a collimator lens, a first lens array having plural first small lenses for dividing an... | 02/24/2009 |
| 7458688 | Prism A prism includes a first internal reflection interface and a second internal reflection interface. The second internal reflection interface is crossed relative to the first internal reflection interface. ... | 12/02/2008 |
| 7429111 | Two-panel color management system The invention provides a two-panel color management system for projection display applications, wherein color sequencing is accomplished using achromatic beam switching and static color separation. In a preferred embodiment, a liquid-crystal polarization switch alte... | 09/30/2008 |
| 7429110 | Projector-type image display apparatus At least one exemplary embodiment is directed to a projector which includes several optical elements, reflective devices and beam splitters, arranged to reduce back reflection effects. At least one exemplary embodiment includes a mirror, two beam splitters, three re... | 09/30/2008 |
| 7422329 | Liquid crystal on silicon (LCOS) kernel with 3D projection capability Images to be displayed are produced for left-eye viewing and right-eye viewing in synchronization with a polarization device that alternately changes polarization of the viewed images. In one embodiment, a control mechanism synchronizes modulation performed by micro... | 09/09/2008 |
| 7410261 | Multicolor illuminator system In an image projection system, there are at least two light illumination units producing illumination light beams of respective first and second primary colors. A first beamsplitter is disposed to split at least a portion of the first illumination light beam into su... | 08/12/2008 |
| 7401925 | Image projection system An image projector system includes an LED controller and first and second LEDs, a dichroic mirror. The LED controller controls the first and the second LED to emit first and second color lights, respectively. The second color light is of high luminance and is decomp... | 07/22/2008 |
| 7403335 | Screen, Fresnel lens sheet used for the same, and image display apparatus using the same The present invention provides a screen suitable for reducing the longitudinal dimension of a set. The present invention includes two prism sections. One is a totally reflective prism section (10) provided at the image generation source side of a Fresnel lens... | 07/22/2008 |
| 7401926 | Space light modulating apparatus, projector including same, process for manufacturing microstructure element used in same, and microstructure element manufactured by the same process A space light modulating apparatus includes a modulating unit that modulates incident light based on an image signal including a plurality of pixels and a light-shielding part placed between the pixels, and a refracting unit that refracts modulated light including a... | 07/22/2008 |
| 7396132 | Prism assembly for use in optical devices and projector comprising such a prism assembly A prism assembly for use in optical devices, which includes a total internal reflection (TIR) assembly for redirecting an incoming lightbeam, a color prism assembly for splitting the incoming lightbeam into spectral bands, and at least one reflection light valve for... | 07/08/2008 |
| 7390094 | Method and apparatus to achieve a neutral dark state in image projection systems An absorptive layer is added to an image display system. The absorptive layer is selected to compensate for tint in a black state of a displayed image. In a Liquid Crystal On Silicon (LCOS) based light engine, blue wavelengths may cause a predominate tint in black p... | 06/24/2008 |
| 7390095 | Projector Aspects of the invention can provide a projector that includes three optical modulators which modulate respectively red light, green light, and blue light, a color-synthetic optical system which synthesizes the light modulated by the three optical modulators, and a ... | 06/24/2008 |
| 7387390 | Single-panel projection system A single-panel projection system (1) includes a lighting device for generating collimated light, a beam splitter (30) for splitting the collimated light into a plurality of collimated beams, a color separator (40) for separating each collimated ... | 06/17/2008 |
| 7387391 | Apparatus and method for mounting imagers on stress-sensitive polarizing beam splitters An optical device that includes an optical element, an imager, and a prism bracket. The optical element includes an optical element having first and second prisms coupled together. The imager is arranged adjacent to the first prism and configured to receive light fr... | 06/17/2008 |
| 7377655 | Projection type display apparatus A projection type display apparatus includes: a reflection type light valve; a polarization beam splitter that emits light obtained through polarization split executed thereat on light from a light source toward the reflection type light valve, analyzes light modula... | 05/27/2008 |
| 7377649 | Projector arrangement A projector arrangement is provided wherein a spectral splitting and recombination unit (SSR) includes a first and a second polarization selective or polarizing beam splitting device and a wavelength selective optical element (WSOE) which are sufficient to realize t... | 05/27/2008 |
| 7367677 | High efficiency lighting system, scrolling unit and projection system employing the same A highly efficient lighting system, a scrolling unit, and a projection system adopting the highly efficient lighting system and the scrolling unit are provided. The scrolling unit has at least one lens cell. From the viewpoint of light incident upon the at least one... | 05/06/2008 |
| 7364303 | Image display apparatus At least one exemplary embodiment is directed to an image display apparatus, which can include multiple color combining elements, multiple light modulating elements, and a projection optical system, operatively connected to reduce the effects of ghost light. ... | 04/29/2008 |
| 7365721 | Projection display The present invention provides an inexpensive projection display that allows a pixel grid as ineffective portions of respective pixels of a light valve to be made inconspicuous. The projection display includes a birefringent element (43) for spatially separat... | 04/29/2008 |
| 7364302 | Projection display system using multiple light sources and polarizing element for using with same An image projection system has two illumination beams of different colors. A first polarizing beamsplitter (PBS) has first and second input faces. Light of the first color is incident on the first input face and the light of the second color is incident on second in... | 04/29/2008 |
| 7362507 | Polarizing beam splitter A polarizing beam splitter is disclosed that includes a first prism, a second prism, and a reflective polarizing film disposed between the first prism and the second prism. The first prism comprises a first polymeric material, and has a first outer curved surface an... | 04/22/2008 |
