Optical transmission and receiving module
According to one aspect of the invention, an optical transmission and receiving module includes a light source; a light receiving element; and a light branching element for causing signal light from t... Read More
Inventors: Ishihara, Takehisa; Miyuki, Hideki; Nagura, Kazuhito; Terashioma, Kentaro; Nakatsu, Hiroshi;, Assignee: Sharp Kabushiki Kaisha (Osaka, JP) |
Calibration method for spectroscopic systems
OF THE INVENTION The present invention provides a method of calibrating spectroscopic systems that allows repeatable and quantitative calibration. FIG. 1 depicts the general functions present in exis... Read More
Inventors: Sandison, David R.;, Assignee: Sandia Corporation (Albuquerque, NM) |
Holographic puzzle
The present invention provides a multiple piece puzzle which draws upon the technological area of holography and applies it to the conventional entertainment concept of the jigsaw puzzle. More specifi... Read More
Inventors: Rugheimer, Norman M.; Chestnut, Scott R.;, Assignee: |
Art form and method of producing same
The present invention relates to a new art form which includes the use of Moire patterns applied in dual or multiple layers with or without spatial separation between layers. The pictures produced may... Read More
Inventors: Head, Richard M.;, Assignee: |
Segmented hologram for multi-image display
As a consequence of the above, it is an object of the present invention to provide a holographic image display wherein one or more of a plurality of holographic images can be selectively displayed or ... Read More
Inventors: Andrews, John R.; Rainsdon, Michael D.; Haas, Werner E.;, Assignee: Xerox Corporation (Stamford, CT) |
Heads-up and heads-down displays employing holographic stereograms
In view of the foregoing state of the art, it is an object of the present invention to provide improved heads-up and heads-down displays. More particularly, it is an object of the present invention to... Read More
Inventors: Molteni, William J.; Volchok, William J.;, Assignee: Polaroid Corporation (Cambridge, MA) |
Seam structure of rubber sheets
OF THE PREFERRED EMBODIMENT Referring to FIG. 3 of the drawings, a seam structure 30 of connecting two edge joints of two rubber sheets, according to a preferred embodiment of the present invention, ... Read More
Inventors: Shih, Arthur Tseshao;, Assignee: Peca Corporation (El Monte) |
Holographic method and apparatus using incoherent light
This object is achieved by the invention by means of a method of generating a quasi-complex hologram using inherent light and a conoscope system comprising a birefringant crystal inserted between two ... Read More
Inventors: Sirat, Gabriel; Dufresne, Eric; Charlot, Didier; Maruani, Alain;, Assignee: Etat Francais (Centre National d'Etudes des Telecommunications) (Issy les Molineaux, FR) |
Method and apparatus for obtaining modulated light indicative of an image operationally formed by projecting an inputted image on the flat plate of an optical induction reflective index crystal
An object of the present invention is to provide an optical logic operation apparatus which is easy to fabricate and is reliable in executing the even with a low-intensity light used for the image pro... Read More
Inventors: Tomita, Yasuo; Taniguchi, Naosato;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Method for making a holographic mirror
Accordingly, an object of the invention is to develop a simplified and improved process for making extended holographic mirrors. According to the invention, this object is achieved by illuminating a p... Read More
Inventors: Windeln, Wilbert; Beeck, Manfred-Andreas; Bartonitscheck, Norbert;, Assignee: Saint-Gobain Vitrage (Courbevoie, FR) |
Two-step gated holographic recording in photorefractive materials using cw lasers
What is claimed: 1. A method of writing to a holographic recording medium containing a ferroelectric material that contains no more than about 0.01% atomic of an optically active impurity, the method ... Read More
Inventors: Bai, Yu Sheng; Kachru, Ravinder;, Assignee: SRI International (Menlo Park, CA) |
Masking of elongate three dimensional objects for the exposure of preselected areas for surface treatment
What is claimed is: 1. A masking member for masking at least an end portion of elongate pins, said masking member being of a flat, platelike form having top and bottom edges and including a plurality ... Read More
Inventors: Sebastien, Leslie;, Assignee: Northern Telecom Limited (Montreal, CA) |
Method of preparing a photo-mask for imaging three-dimensional objects
The present invention is directed to a method of preparing a photo-mask for exposing selected areas on surfaces of a three-dimensional substrate to light from a light source of a predetermined range o... Read More
Inventors: Dumas, William V.; Karas, Bradley R.; Foust, Donald F.; Rose, James W.;, Assignee: General Electric Company (Schenectady, NY) |
Heat-bonding method
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims: 1. A method of heat-bonding a layer of thermoplastic material onto a densely woven synthetic f... Read More
Inventors: Burgheimer, Joanne;, Assignee: The Dimension Weld International Corporation (Stamford, CT) |
Process for selective transfer of metallic foils to xerographic images
A method is provided for forming imamges overlaid with metallic foil. According to the method of the present invention, a sheet comprising xerographic images is provided and placed in face-to-face con... Read More
Inventors: Nelson, Marshall A.;, Assignee: Omnicrom Systems Corporation (Ashland, MA) |
Composite for reinforcing bituminous roofing membranes including a lightweight grid of over-under construction
What is claimed is: 1. A puncture resisting and processability improving composite for reinforcing bituminous roofing membranes that are free of organic mats, the composite consisting essentially of: ... Read More
Inventors: Woiceshyn, D. Mark;, Assignee: Bay Mills Limited (St. Catharines, CA) |
Diffractive beam homogenizer having free-form fringes
The invention is a beam homogenizer for converting an incident beam having a non-uniform spatial energy distribution into an output beam of preselected spatial energy distribution. The incident beam i... Read More
Inventors: Kathman, Alan D.; Feldman, Michael R.;, Assignee: Digital Optics Corporation (Charlotte, NC) |
Fabrication of sandwiched construction media
The invention is directed towards holographic data storage media, holographic data storage systems, and methods for making holographic data storage media. The holographic data storage media may incorp... Read More
Inventors: Edwards, Jathan D.; Aspen, Frank E.; Hegel, Ramon F.; Sandstrom, Chad R.;, Assignee: Imation Corp. (Oakdale, MN) |
Hologram recording sheet, holographic optical element using said sheet, and its production process
An object of the invention is to provide a hologram recording sheet which enables an image of good quality to be obtained and, at the same time, hologram recording to be easily made at an advantageous... Read More
Inventors: Ueda, Kenji; Hotta, Tsuyoshi; Taniguchi, Yukio; Sekiguchi, Atsushi; Iriyama, Hideyuki;, Assignee: Dai Nippon Printing Co., Ltd. (Shinjuku-ku, JP) |
Process for holography involving tilt compensation
The invention provides a process and apparatus for holography in which aberrations introduced by storage media, particularly photopolymer-type media, are substantially reduced. Specifically, as reflec... Read More
Inventors: Curtis, Kevin Richard; Tackitt, Michael C;, Assignee: Lucent Technologies Inc. (Murray Hill, NJ) |
Optical scanning apparatus
It is therefore an object of the present invention to provide a relatively inexpensive optical scanning apparatus which can substitute for the conventional optical scanning apparatus. It is a more spe... Read More
Inventors: Bamba, Nobuo;, Assignee: Ricoh Company, Ltd. (Tokyo, JP) |
Programmable optical interconnect system
This is an optical interconnect system. The system comprises: at least one signal transmitter; at least two signal receivers; at least one DMD in the same plane as the signal transmitter; and a hologr... Read More
Inventors: Lin, Tsen-Hwang; Feldman, Michael R.;, Assignee: Texas Instruments Incorporated (Dallas, TX) |
Method of reading hologram information
In view of the above-described circumstances, it is an object of the present invention to provide a hologram information reading method wherein when a hologram is illuminated with a beam of light havi... Read More
Inventors: Yamazaki, Satoshi;, Assignee: Dai Nippon Printing Co., Ltd. (Tokyo, JP) |
Vacuum diaphragm device
OF THE PREFERRED EMBODIMENTS Referring now to the drawing wherein like numerals of reference represent like elements through-out, a bonding apparatus depicted generally at 10, is shown. The bonding a... Read More
Inventors: Newsom, Cosby M.;, Assignee: |
Achromatic optical system including diffractive optical element
OF A PREFERRED EMBODIMENT The present invention now will be described more fully hereinafter with reference to the accompanying drawings in which preferred embodiments of the invention are shown. Thi... Read More
Inventors: Feldman, Michael R.; Kolste, Bob T.; Wlech, W. Hudson; Yang, Hedong;, Assignee: University of North Carolina (Charlotte, NC) |
Color reproducing method and apparatus for converting a color space data into another color space data
An object of the present invention is to provide a color reproducing method and apparatus capable of converting a color reproducing range into another color reproducing range without losing a balance ... Read More
Inventors: Tanaka, Kenji; Kato, Asako;, Assignee: Victor Company of Japan, Ltd. (JP) |
Image transfer sheet and image forming method using the image transfer sheet
Accordingly, an object of the present invention is to provide an image transfer street which is used for wet-type image transfer methods and which can form a transferred image having good image qualit... Read More
Inventors: Taniguchi, Keishi; Hatada, Shigeo;, Assignee: Ricoh Company, Ltd. (Tokyo, JP) |
Method and apparatus for color conversion
In order to accomplish above purpose, the present invention provides a method and apparatus for transforming color signals which can transform an input color signal consisting of three principal color... Read More
Inventors: Kanamori, Katsuhiro; Yamada, Osamu; Motomura, Hideto; Kurosawa, Toshiharu; Fumoto, Teruo;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
Holographic system for the storage of audio, video and computer data
An object of this invention is to provide a holographic apparatus which is capable of serving equally well as an audio and video playback mechanism, and as a read-only block-access computer data stora... Read More
Inventors: Carlson, John E.;, Assignee: |
Printed circuit board
What is claimed is: 1. A printed circuit board comprising a non-conductive substrate and at least one conductive line printed on said substrate, said line comprising a U.V. cured ink comprising a cycl... Read More
Inventors: Durand, David;, Assignee: Key-Tech, Inc. (Cranston, RI) |
Optical Systems 
