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| Number | Title | Issue Date |
| 7362404 | Liquid crystal display device and method of manufacturing liquid crystal display device for preventing defects in liquid crystal In a liquid crystal display device, one or a plurality of partition walls adhering to the two substrates are provided in a region between the adhesive member for sealing the peripheral portions of the two substrates and a display region located inside the adhesive m... | 04/22/2008 |
| 7304775 | Actively stabilized, single input beam, interference lithography system and method An interference lithography system is described that is capable of exposing high resolution patterns in photosensitive media and employing yield increasing active stabilization techniques needed in production environments. The inventive device utilizes a division-of... | 12/04/2007 |
| 7277640 | Optical add/drop multiplexing systems The present invention overcomes problems associated with switch isolation, noise and crosstalk suppression, insertion loss, spurious reflections, wavelength tolerance, and compactness that are present in varying degrees in other add/drop systems. The present inventi... | 10/02/2007 |
| 7245408 | Systems and methods for producing wide field-of-view holographic displays Hologram recording devices and techniques can be employed to produce wide-field-of-view holograms. In one embodiment, a specialized lens is used to couple an object beam into a holographic recording material without substantially changing the angle of incidence of t... | 07/17/2007 |
| 7224867 | Holographic spectral filter Method and apparatus are contemplated for receiving from an input, an optical signal in a volume hologram comprising a transfer function that may comprise temporal or spectral information, and spatial transformation information; diffracting the optical signal; and t... | 05/29/2007 |
| 7194162 | Filter response optimization for an arrayed waveguide grating device by adjusting grating optical path length at nanometer scale A method of optimizing a filter response of an arrayed waveguide grating is disclosed. The method includes the step of measuring a respective phase error of a plurality of waveguide cores of the arrayed waveguide grating. Once the phase error is measured, a respecti... | 03/20/2007 |
| 7180844 | Holographic disc recording system A holographic disc recording system for recording, in the form of holograms, information stored on a source disc onto a target disc includes a conical beam shaper which transforms a reference beam into a conical beam having a substantially cylindrically symmetrical ... | 02/20/2007 |
| 7068430 | Method of making highly discriminating optical edge filters and resulting products Highly discriminating optical edge filters and methods of making the same are disclosed. The optical edge filters have an edge steepness greater than about 0.8% as measured by dividing (a) the edge width from the 50% transmission wavelength to the optical density 6 ... | 06/27/2006 |
| 7065111 | Method for testing laser using side mode suppression ratio Systems, methods and computer software are provided for testing a laser. Initially, the laser is operated at a first bias setting and a data rate of about 10 Gb/s, and a first side mode suppression ratio of the laser output is measured that is based on a first ratio... | 06/20/2006 |
| 7061656 | Hologram duplicating device and method A hologram duplicating apparatus (10) includes a first optical system (30) for carrying out exposure recording of holographic stereogram image on a recording medium for hologram to produce an original H1, a second optical system (60) ... | 06/13/2006 |
| 7034971 | Fabrication of sandwiched construction media In one embodiment, holographic data storage medium includes a first thermoplastic substrate portion having a thickness less than approximately 2 millimeters and a second thermoplastic substrate portion having a thickness less than approximately 2 millimeters. A holo... | 04/25/2006 |
| 7024075 | Reducing insertion losses of a written in grating with mode coupling in the cladding The invention relates to an optical fiber presenting a core, cladding, and a grating written by irradiation and coupling at least one light mode into the cladding so that it is dissipated therein. The invention proposes causing the mean index to vary progressively a... | 04/04/2006 |
| 6980338 | Image-reproducing apparatus and image-reproducing method An optical member 7 is bonded, at its rear side 7b, to a holographic stereogram 6. The front side 7a of the optical member 7 consists of parallel triangular prisms. Illumination light 9 is applied to the front ... | 12/27/2005 |
| 6978057 | Optical waveguide and a method for providing an optical waveguide A laser diode (1) having an optical path (15) defined in an active layer (2) which is sandwiched between a substrate layer (3) and a top layer (4) and defined by a ridge (14) formed in the top layer (4) outputs laser ... | 12/20/2005 |
| 6977761 | Image-reproducing apparatus and image-reproducing method An optical member 7 is bonded, at its rear side 7b, to a holographic stereogram 6. The front side 7a of the optical member 7 consists of parallel triangular prisms. Illumination light 9 is applied to the front ... | 12/20/2005 |
| 6975440 | Image-reproducing apparatus and image-reproducing method An optical member 7 is bonded, at its rear side 7b, to a holographic stereogram 6. The front side 7a of the optical member 7 consists of parallel triangular prisms. Illumination light 9 is applied to the front ... | 12/13/2005 |
| 6975447 | Optical fiber amplifier and dispersion compensating fiber module for optical fiber amplifier The invention provides an optical fiber amplifier which assures stable operation of a pump light source and efficiently makes use of residual pump power to achieve improvement in conversion efficiency. The optical fiber amplifier includes a rare earth doped fiber. P... | 12/13/2005 |
| 6965387 | Real time data conversion for a digital display A system and method for extracting and manipulating image data is provided. A pixel panel is rotated so as to increase a resolution of a projected image. The rotation may be calculated so as to achieve a desired resolution. A portion of the image is retrieved from a... | 11/15/2005 |
| 6956680 | Network structure using high dispersion volume holography A grating structure by high dispersion volume holography that applies, for example, to pulse compression or stretching devices. The grating structure includes a transmission volume holographic grating produced on a reflective support. The grating includes strata inc... | 10/18/2005 |
| 6927886 | Reconfigurable image surface holograms The invention provides systems and methods for generating and displaying computational holographic stereograms having a hologram surface and a spatially distinct image surface. A three-dimensional object or scene is captured or synthesized as a stack of views. The h... | 08/09/2005 |
| 6738170 | Image-reproducing apparatus and image-reproducing method An optical member 7 is bonded, at its rear side 7b, to a holographic stereogram 6. The front side 7a of the optical member 7 consists of parallel triangular prisms. Illumination light 9 is applied to the front ... | 05/18/2004 |
| 6730374 | Triacetyl cellulose film with reduced water transmission property Disclosed is a triacetyl cellulose film comprising (a) a triphenyl monophosphate compound and (b) an aromatic polyol-bridged polyphosphate compound. Such a film exhibits a reduced rate of water vapor transmission. ... | 05/04/2004 |
| 6639700 | Hologram recording medium, hologram recording/reconstructing apparatus, and hologram recording/reconstructing method A hologram recording medium comprises a hologram recording layer for recording a hologram, and a wedge substrate for varying the propagating direction of a reference light and an object light incident upon the hologram recording medium. By rotating the ho... | 10/28/2003 |
| 6631016 | Full-parallax holographic stereograms on curved substrates The current invention comprises the recording of full parallax, one-step, full color holographic stereograms so as to properly display the resultant imagery when the hologram is mounted on a curved substrate after recording. It also comprises mounting the... | 10/07/2003 |
| 6545778 | Holographic display device and method for producing a transmission diffusion hologram suitable for it A holographic display device, e.g. for a vehicle, which reduces a color of hologram reflection toward the outside of the vehicle or a color of hologram transmission toward the inside of the vehicle generated at a hologram installation portion of a wind-pr... | 04/08/2003 |
| 6413702 | Method for making a holographic linear position encoder A method for fabricating an error-free linear position encoder incorporates the generation of fringes on a holographic plate by the interference of light from two point sources. The fringes are projected onto a curved holographic plate without intervening... | 07/02/2002 |
| 6329105 | Pattern formation method and apparatus using atomic beam holography technology A pattern formation method wherein a very small pattern composed of a desired element (atoms) is formed directly on a substrate by using atomic beam hologram technology. Quantum coherent reflection of an atomic wave is utilized. A coherent atomic beam is ... | 12/11/2001 |
| 6307679 | Formation of a refractive index grating An apodised refractive index grating is recorded in a photosensitive optical fiber by forming first and second component interference patterns with different pitches, that are recorded in the grating such as to result in apodisation. The component pattern... | 10/23/2001 |
| 6101009 | Holographic data storage and/or retrieval apparatus having a spherical recording medium A holographic data storage and/or retrieval apparatus having a spherical holographic recording medium and addressing means for rotating the recording medium to selectively expose the recording medium to data and reference beams at predetermined rotational... | 08/08/2000 |
| 6049401 | Volume holographic memory A volume holographic memory whose three-dimensional photosensitive body has exposed portions comprised only of continuous faces prevents recording of noise caused by scattered light at the time of light irradiation.... | 04/11/2000 |
| 5949557 | Total internal reflection holography method and apparatus for lithography on 3-D spherical shaped integrated circuit A photolithograhic method and apparatus for exposure of a spherical shaped semiconductor substrate according to a mask pattern of a primary spherical object mask in the manufacture of a spherical semiconductor device is disclosed. A secondary mask is prov... | 09/07/1999 |
| 5764390 | Holographic method for generating three dimensional conformal photo-lithographic masks A three-dimensional photo mask is formed from a substrate having a first side and a three-dimensional side. A hologram is provided on the first side of the substrate. The three-dimensional side of the substrate has a photosensitive resist material provide... | 06/09/1998 |
| 5712715 | Optical transmission system with spatially-varying Bragg reflector An optical transmission system having a transmission waveguide, an optical amplifier, a pump radiation source for supplying pump radiation to the optical amplifier, and a Bragg grating for reflecting pump radiation to the amplifier. The Bragg grating is p... | 01/27/1998 |
| 5594559 | Stereoscopic display apparatus A space light modulating apparatus and a stereoscopic display apparatus which are used in a rewritable hologram stereoscopic display. A solid image can be properly displayed by a phase distribution of a low spatial frequency. A plurality of flat space lig... | 01/14/1997 |
| 5576853 | Apparatus and methods for making transmission holograms Apparatus and methods are provided for mass production of transmission holograms onto a continuous web of photosensitive material, one method involving the mounting of a master transmission hologram onto the outside surface of a clear hollow drum, the cle... | 11/19/1996 |
| 5539544 | Holographic filter for protection from radiation, notably laser radiation A holographic filter for protection from radiation, notably laser radiation. At least one support is covered with at least two holograms. Each hologram is constituted by a stack of strata. The holograms are fixed to each other by an optical bonder associa... | 07/23/1996 |
| 5499117 | Transfer of photopolymer hologram from a curve surface to another curve surface A method for transferring a photopolymer hologram from a curved exposure surface to a curved application surface including the steps of forming a release layer on the exposure surface, forming a photopolymer layer on the release layer, forming a protectiv... | 03/12/1996 |
| 5477348 | Achromatic hologram optical system An achromatic hologram optical system for converting a wave front A into a wave front B. Two holograms (H1 and H2) are provided. The length of an optical path from an equiphase front of the wave front A to an equiphase front of the w... | 12/19/1995 |
| 5452385 | Optical scanning device an optical scanning type display and an image data input/output device An optical scanning device comprises a light source for emitting a light, a light guide path being adapted to receive the emitted light and to transmitting the received light therein, a plurality of diffraction gratings disposed on the light guide path fo... | 09/19/1995 |
| 5422746 | Single and multiple element holographic devices for high-efficiency beam correction The holographic element of the present invention includes a holographic grating pattern that is impressed in the media of the element utilizing beams of electromagnetic energy of wavelength λo. The holographic grating pattern is capable of man... | 06/06/1995 |
