Quotables
"We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology."
Carl Sagan
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7411734 | Color-splitting optical element and an optical system utilizing the color-splitting optical element A color-splitting optical element is disclosed that includes a first prism having a first transmissive curved outer side, a second transmissive curved outer side and an inner side. The color-splitting optical element also includes a second prism having a first trans... | 08/12/2008 |
| 7400452 | Method and apparatus for internal frames to improve performance and manufacturability of optical devices including liquid crystal on silicon (LCOS) based kernels Frames are used to hold and/or position components in precise positions in a prism assembly. The frames may be constructed using any of side caps, air gaps, recesses, and hold either a single or multiple planar components. The frames are, for example, immersed in li... | 07/15/2008 |
| 7359122 | Prism assembly A prism assembly includes a first prism having a first front face, a first side face, and a first rear face, a second prism having a second front face parallel to the first rear face, a second side face, and a second rear face. The second prism is configured to dire... | 04/15/2008 |
| 7274454 | Imaging system with programmable spectral switch An imaging apparatus has input optics for obtaining a multispectral image bearing light and a programmable spectral switching section. The programmable spectral switching section has a first lens for directing light toward a dichroic separator that separates the mul... | 09/25/2007 |
| 7271961 | Cross dichroic prism and projection display apparatus equipped with cross dichroic prism A cross dichroic prism color-synthesizes a plurality of color lights having entered therein separately and emits color-synthesized light to a projection lens. The cross dichroic prism includes a first dichroic film; and a second dichroic film intersecting the first ... | 09/18/2007 |
| 7267443 | Light-modulating projector Exemplary embodiments of the invention provide a projector that can readily correct for chromatic aberration caused by, for example, a projecting lens without having to give a cross dichroic prism, for example, a special preliminary process. Illumination-light compo... | 09/11/2007 |
| 7235831 | Light-receiving element and photoelectric conversion device In order to reduce the capacitance of a light-receiving element, the present invention provides a light-receiving element which includes a first semiconductor region of the first conductivity type, a second semiconductor region of the second conductivity type, provi... | 06/26/2007 |
| 7137705 | Optical device with optical modulator fixation-enhancing structure and projector A cross dichroic prism as a color-combining optical device and optical modulators constituting an optical device body are fixed with insulating pins being interposed. The optical device body includes a base and reinforcing members, supporting surfaces for supporting... | 11/21/2006 |
| 7120309 | Ghost image correction system and method A new and useful method and system for correcting for ghost images in a telecentric optical system is provided. Ghost images generated from planar optical surfaces in the image space after the major elements of a telecentric optical system are shift invariant. In ot... | 10/10/2006 |
| 7002620 | Single camera video inspection system for water wells and bore holes A system (10) for video inspection of a passage such as a bore hole (2) is provided. The system (10) includes a carrying case (1) having a deep housing (12) and a removable cover (14) with a spool (16) of coaxial cabl... | 02/21/2006 |
| 6975358 | Dual channel imaging device An imaging device may include two channels, for example each with different magnification or fields of view as two examples. The user may select one of the channels and the image captured through that channel may be both viewed through a viewfinder and recorded on a... | 12/13/2005 |
| 6956551 | Device for displaying images by projection, comprising dichroic filters with a gradient Device comprising: matrices of reflecting elements which can be electrically driven, and means for deconstructing a beam of polychromatic light and means for reconstructing complementary reflected beams, comprising... | 10/18/2005 |
| 6942347 | Color combining optical system, image projection optical system, and projection type image display apparatus A color combining optical system according to this invention aims at reducing the size of an optical system and suppressing the occurrence of color unevenness. According to this invention, there is provided a color combining optical system for combining color light ... | 09/13/2005 |
| 6927792 | Television camera and white balance correcting method The white balance of a television camera is not lost and kept properly even if the diaphragm is opened to the utmost limit at a dark place. A signal F representing the diaphragm value of the taking lens is inputted from an iris part 2 into a microcomputer ... | 08/09/2005 |
| 6923545 | Method for manufacturing color combining optical system, apparatus for manufacturing color combining optical system and method for manufacturing projector A measurement light (X) is introduced on either one of reflection surfaces (501, 502, 511, 512) to detect a returned light (Y) reflected by the reflection surfaces (501, 502, 511, 512), reflected by a reflecting device and again reflected by the reflec... | 08/02/2005 |
| 6909556 | Design of prism assemblies and kernel configurations for use in projection systems Kernels are designed in different configurations based on design properties of an enclosure or other requirements. A prism assembly having various types of filters, waveplates, beam splitters (e.g., path length matched beam splitters) and/or other optical components... | 06/21/2005 |
| 6903774 | Viewfinder device including first and second prisms to reflect light from outside the viewing area A thin viewfinder device includes, in order an object side to a viewing eye side, a first prism, and a second prism disposed separately from the first prim across an air gap. The first prism, the air gap and the second prism are arranged in such a manner that an obj... | 06/07/2005 |
| RE38740 | Dichroic prism and projection display apparatus The invention provides a dichroic prism capable of reducing displacements of projection pixels of colors caused by chromatic aberration of magnification. A dichroic prism is formed in the shape of a quadrangular prism as a whole by joining four rectangular prisms to... | 06/07/2005 |
| 6885403 | Color separation beam splitter for projectors A color separation beam splitter for projectors is provided, which comprises a plurality of prisms connected with each other and three optical interference filters having different wavelength ranges respectively formed on side surfaces of the plurality of prisms. Th... | 04/26/2005 |
| 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 apparatus using it. A color combining optical element is construc... | 12/30/2003 |
| 6667656 | Color separating optical system In a color separating optical system, a first filter adapted to eliminate from light emitted from a red light exit face a light component in a wavelength range longer than a longer-wavelength-side boundary wavelength of a red visible light wavelength regi... | 12/23/2003 |
| 6549338 | Bandpass filter to reduce thermal impact of dichroic light shift A color splitting prism assembly (100) comprised of three prisms. Each a dichroic filter at an interface (112) between a first and second of the three prisms reflects a first primary color component of a white light beam passing through the prism assembly... | 04/15/2003 |
| 6542193 | Optical system for TV camera with still-taking function In a TV camera main body, a still-image-luminous-flux-decomposing prism is disposed adjacent to a color-decomposing prism of a TV-image-capturing system, whereby still images whose aberration is favorably corrected as with TV images are obtained in a simp... | 04/01/2003 |
| 6342980 | Beam splitting prism system A beam splitting prism system includes, at least, a first prism for extracting a first light beam along an advancing direction of a light beam coming from an objective lens, an air separation, and a second prism having a predetermined apical angle and hav... | 01/29/2002 |
| 6330113 | Color separation prism with adjustable path lengths A color-separation prism assembly comprises first, second and third prisms. The first and second prisms have entrance surfaces, exit surfaces, and partially-reflecting surfaces, wherein the entrance surface of the second prism is separated by an air gap f... | 12/11/2001 |
| 6144498 | Color separation prism assembly and method for making same A color separation device useful in information display systems is assembled from three prisms in an arrangement that provides for air equivalent thickness adjustment for each color. The air equivalent thickness adjustment provides for the correction of d... | 11/07/2000 |
| 5777674 | Four color separation optical device A color separation prism in which are arranged, in the order according to the direction in which the light from the objective travels: a first prism which extracts a predetermined wavelength component; a first air gap; a second prism which extracts a pred... | 07/07/1998 |
| 5760832 | Multiple imager with shutter control An image forming optical system comprises interchangeable lens 14 of a single lens reflex camera and reduction relay optical system 15. A three-color separating prism 16 that separates the photo image into two green photo images (G1 and G2) and a red/blue... | 06/02/1998 |
| 5726709 | Imaging apparatus including offset pixels for generating vertical high frequency component An imaging apparatus comprises: a color separation optical system for separating an image ray into blue, green, and red image rays, image sensors, having pixels vertically and horizontally arranged, for receiving the image rays and producing blue, red, an... | 03/10/1998 |
| 5640206 | Imaging apparatus including offset pixels for generating vertical high frequency component An imaging apparatus comprises: a color separation optical system for separating an image ray into blue, green, and red image rays, image sensors, having pixels vertically and horizontally arranged, for receiving the image rays and producing blue, red, an... | 06/17/1997 |
| 5313288 | Recording medium and recording/reproduction apparatus thereof A recording medium has first and second transparent electrodes, a photoconductive layer member and a photomodulation member. The recordingmedium also has a first lamination member having a first substrate on which the first transparent electrode and the p... | 05/17/1994 |
| 5251068 | Objective lens having a filter This specification discloses an objective lens disposed forwardly of a prism block for dividing light into a plurality of color components, the objective lens having an optical filter differing in spectral transmission factor between the central area ther... | 10/05/1993 |
| 5124547 | Color separation apparatus for reducing lag in photosensors using color auxiliary light biasing Apparatus is disclosed for reducing lag in photosensors in a color separation assembly having an optical imaging path. The apparatus comprises a plurality of colored LEDs located outside of said optical path and arranged for illumination of the photosenso... | 06/23/1992 |
| 5042913 | Electrical signal forming apparatus having image splitting prism An apparatus for firmly mounting solid-state image sensors to an image splitting prism in which a mounting glass block is bonded to an image splitting prism surface or to a glass plate bonded to a prism. A metal film is formed on the glass block, and a pr... | 08/27/1991 |
| 5014121 | High image resolution image pickup system with color dispersion means An image pickup system with an illuminating device capable of sequentially irradiating three kinds of color lights different from each other onto an object, an objective lens system forming images of the object with the color lights, a solid-state image s... | 05/07/1991 |
| 5002365 | Beam splitter for color imaging apparatus A beam splitter for color imaging apparatus is disclosed. The beam splitter comprises two prism elements which are joined together with a dichroic interference filter interposed between the two elements. An input beam to the beam splitter is divided into ... | 03/26/1991 |
| 4913528 | Optical prism, and projection television set using same A prism system is disclosed which employs at least one solid or liquid filled prism element optically coupled to at least one plate like member which forms a total reflection surface or a dichroic mirror. In one embodiment the prism is molded from transpa... | 04/03/1990 |
| 4873569 | Image reader having spectroscope for color separation A spectroscope (20) and a multi-row image sensor (40) are fixed to each other. Light from an original is supplied through an image-formation optical system to a spectroscope, which in turn separates the light into a plurality of color light components (LR... | 10/10/1989 |
| 4857997 | Color television camera incorporating a color resolving prism system In a television camera having a color resolving prism system for forming monochromatic images on the image pickup surfaces of a plurality of image pickup devices by an objective lens the color resolving prism system has first, second, third and fourth pri... | 08/15/1989 |
| 4831452 | Image pickup device having a photoconductive optical modulator element An image pickup device includes an optical modulator element for storing information corresponding to an optical image formed thereon, an imaging lens for forming an optical image of an object on the optical modulator element, and a device for reading the... | 05/16/1989 |
