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| Number | Title | Issue Date |
| 6854851 | Projection display A projection display according to the present invention reduces the size of a light beam in the optical path of an illumination optics from the periphery to change the amount of light incident on a video display device and the angle of such incidence, thereby making... | 02/15/2005 |
| 6851811 | Projector including a relay optical system A relay optical system, which focuses light from a light outgoing plane of an integrator rod into an image on a predetermined illumination area, has a first optical element for correcting at least a distortion aberration, and a second optical element for correcting ... | 02/08/2005 |
| 6848794 | Reflecting optical element, optical system and optical apparatus using reflecting optical element, projection type image display apparatus, and method for fabricating reflecting optical element A reflecting optical element is disclosed which includes the following articles. The reflecting optical element is constituted by: a base member having a continuous curved-surface portion, and a resin layer ... | 02/01/2005 |
| 6843570 | Micro mirror device and projector employing the same Provided are a micro mirror device capable of realizing color images without a color wheel by selectively reflecting color beams using a plurality of micro mirrors whose driving axes are positioned in different directions, and a projector employing the same. The mic... | 01/18/2005 |
| 6840631 | Illuminating apparatus, and projector using the illuminating apparatus An illuminating apparatus has a light source emitting illumination light; and a prism having a plurality of reflecting surfaces and reflecting the illumination light from said light source by the reflecting surfaces to thereby bend an illumination optical path at an... | 01/11/2005 |
| 6840634 | Reflective projection display system A reflective projection display system for receiving a light ray and projecting it onto a screen in a light-state mode. The reflective projection display system includes a reflective micro-mirror panel, a projecting device and a prism set. Before reaching the reflec... | 01/11/2005 |
| 6840633 | Lamp reflector assembly A lamp assembly having a reflector holding a lamp element, or burner. A reflector extension is designed to mate to the reflector. The reflector extension has a first open end toward the reflector. The first open end typically is in contact with the reflector to form... | 01/11/2005 |
| 6837581 | System and method for deploying a mirror assembly of a display unit A mirror assembly deployment system of a display unit includes an imaging mirror and an extension link assembly coupled to the imaging mirror. The extension link assembly includes an extension spring coupled to a housing of the display unit. The deployment system in... | 01/04/2005 |
| 6839095 | Single-path color video projection systems employing reflective liquid crystal display devices A multimedia projector (100) includes a single-path frame-sequential color optical system in which light rays emitted by a light source (14) propagate through a color wheel (102) and an optical integrator (16, 120, 122), and are directed ... | 01/04/2005 |
| 6832839 | System for enhancing the quality of an image A system for enhancing the quality of an image on a screen is provided. The system typically includes an illumination source configured to produce light and direct such light along an optical path, and a time-varying focus device disposed in the optical path and con... | 12/21/2004 |
| 6824270 | Single-panel color image display apparatus and scrolling method A single-panel color image display apparatus realizing a wide color gamut is provided. The single-panel color image display apparatus includes a colored light separator having a plurality of dichroic filters in which a dichroic filter reflecting a red light beam may... | 11/30/2004 |
| 6817717 | Display system with low and high resolution modulators A display system is provided, the system including an illumination source configured to produce light and direct light along an optical path, a plurality of color filters disposed in the optical path configured to generate a plurality of colored light beams, and a s... | 11/16/2004 |
| 6811265 | Retractable image projecting system An image projecting system for mounting in a hidden location such as a ceiling or a piece of furniture such as a desk. The system includes an image producing apparatus and a plurality of optical components. At least one of the optical components is a mirror that can... | 11/02/2004 |
| 6811263 | Colored light separating device and single-panel color image display apparatus using the same A colored lighting separating device and a single-panel color image display apparatus using the same include a colored light separator having a plurality of dichroic filters to separate incident light into a plurality of colored light beams and a driving device whic... | 11/02/2004 |
| 6808271 | Projection type display apparatus In order to achieve a great improvement in light utilizing efficiency, a projection type display apparatus for obliquely projecting an original image onto a screen includes a first projection optical system for projecting light from an original picture and forming a... | 10/26/2004 |
| 6793341 | Stereographic projection system A projection system configured to project a stereographic image onto a viewing surface is provided. The projection system includes a light source configured to produce a beam of light, a beam splitter configured to split the beam of light into a right image beam and... | 09/21/2004 |
| 6783250 | Efficient light collector for projection display system A light collection for an arc lamp includes a parabolic reflector having primary and secondary parabolic reflector sections, the secondary parabolic reflector section divided into subsections, resulting in multiple arc images. The light collection system combines hi... | 08/31/2004 |
| 6779898 | Image display apparatus and method for recapturing off-state light An image display apparatus and a method for recapturing off-state light are provided. The image display apparatus includes a spatial light modulator, a reflector, and an integrator element. The spatial light modulator, in response to a light beam, selectively modula... | 08/24/2004 |
| 6779897 | Rear projection optical system An oblique projection optical system for leading rays of light from a display surface on which an image is displayed to a projection surface in such a way that the ray of light from the center of the display surface is obliquely incident on the projection surface in... | 08/24/2004 |
| 6776492 | Multiple reflective mirrors module A multiple reflective mirrors module is described. The module is utilized in an optical engine of a business machine, such as a projector, a laser printer, a copy machine, or a scanner. The module has a fixed reflective mirror, a first tilting reflective mirror, and... | 08/17/2004 |
| 6773120 | Optical projection system and method for using an optical projection system Optical projection system, comprising a projection lens, illumination optics in front of the projection lens showing a well-defined F# number, and at least one light modulator comprising a plurality of reflective elements, wherein this system shows an optical axis a... | 08/10/2004 |
| 6767100 | 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 ... | 07/27/2004 |
| 6761459 | Projection system The present invention relates to projection systems for displaying visual information in a variety of applications in order to reduce the projection area, the weight and the dimensions thereof. In one embodiment, the projection system for producing an external surfa... | 07/13/2004 |
| 6758579 | Illuminating-light controller, projector, and illuminating-light control method An illuminating-light controller includes a light modulator for projecting light on a corresponding area by tilting a reflecting surface. A first light source emits a first light that is projected on the corresponding area by illuminating the first light to the refl... | 07/06/2004 |
| 6755539 | Reflective LCD projector An apparatus for projecting an image includes a light source, a polarization modulator, a projection lens, and a mirror. The mirror is positioned between the light source and the modulator and blocks a cross-sectional portion of the light from the light source from ... | 06/29/2004 |
| 6752500 | Rear surface projection type display device A rear projection display device capable of reducing the depth of a display device itself, comprising an optical engine, first, second, third reflective mirrors arranged at such positions as to be easily held integrally with each other, a fourth reflective mirror, a... | 06/22/2004 |
| 6733140 | Method of ghost reduction and transmission enhancement for a real image projection system A real image projection system includes at least one curved reflector, positioned in a tilted configuration, wherein an optical axis of the reflector is not coincident with a viewing axis, and a beampath between a target source and the curved reflector neither passe... | 05/11/2004 |
| 6735015 | Display apparatus Display apparatus (50) comprising a front projection screen (60), at least one projector (54) which is for providing a display on the screen (60) and which is positioned outside an enclosed display volume, the screen (60) being opt... | 05/11/2004 |
| 6729734 | System for enhancing the quality of an image A system for enhancing the quality of an image on a screen is provided. The system typically includes an illumination source configured to produce light and direct such light along an optical path, and a time-varying focus device disposed in the optical path and con... | 05/04/2004 |
| 6728020 | Optical element suitable for projection display apparatus Platelike first transparent members 321 and platelike second transparent members 322 are prepared. Each first transparent member has substantially parallel first and second surfaces (film forming surfaces). A polarization splitting film 331 is f... | 04/27/2004 |
| 6719427 | Display device, projection display apparatus, driving device for light modulator, and method for driving light modulator A display device includes a light modulator used as an image forming unit and a projection optical system for projecting and displaying an image. In the display device, gradation is represented by varying the ON-time in the temporal axis during one frame period of t... | 04/13/2004 |
| 6719432 | Optical assembly for rear projection television The present invention comprises a carrier, an optical engine disposed on the carrier, and a hood member coupled to the carrier at the front end of the optical engine. The hood member has an inlet coupled to the optical engine and an outlet sealed with a screen. At l... | 04/13/2004 |
| 6715880 | Projector device comprising a rod integrator having at least one notch or a protruded portion A projector device is provided which is capable of reducing its costs by making it possible to increase luminance of outgoing light from a rod integrator with an output from a light source being remained unchanged and by making it possible to achieve a compact illum... | 04/06/2004 |
| 6712473 | Mirror array device and projection type display apparatus using the same In order to provide a noise-free reliable projection type display apparatus which has no movable portion and can display a high quality full-color image, the following arrangement is proposed. In a projection type display apparatus which has an optical modulation de... | 03/30/2004 |
| 6705735 | Projecting device for displaying computer image The present invention discloses a projecting device without prisms. The projecting device comprises a light source for generating an incident light beam, a reflective image module comprising a plurality of reflective surfaces which can be separately controlled to ge... | 03/16/2004 |
| 6702446 | Projection display device The invention relates to a projection display device comprising a illumination system having a light source and an optical bar for providing an illumination beam, an image display system comprising a display panel for modulating the illumination beam with... | 03/09/2004 |
| 6698902 | Image displaying apparatus for displaying an image according to light reflected by an optical spatial modulator element A digital mirror dence chip has a substrate, micro-mirrors disposed on the substrate, and a glass cover plate disposed over the micro-mirrors. Each micro-mirror is inclined by +10 degrees or -10 degrees with respect to the substrate to be set to an on-sta... | 03/02/2004 |
| 6644816 | Display device having a cylindrical projection surface such that an image projected onto the inside is visible on the outside The invention relates to a display device for displaying visual information, comprising: at least one image-forming element; at least one light source for generating a light beam, which in cooperation with the image-forming element produces an illuminated... | 11/11/2003 |
| 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 elements conforming to the respective color lights are illumi... | 10/21/2003 |
| 6626541 | Projection optical system and projection type displaying apparatus using the same A projection optical system is provided to guide a beam from an image display panel onto a screen surface inclined relative to a reference axis, and to form image information on the screen surface. The projection optical system has a reflecting optical sy... | 09/30/2003 |
