Multiplexed multi-image source display writing system
In order to meet the above and other objectives, the present invention comprises projection apparatus for providing an image on a display screen that has a predetermined high (display) image resolutio... Read More
Inventors: Montroy, John T.; Garcia, John P.; Gold, Ronald S.; Freeman, Jerry E.;, Assignee: Hughes Aircraft Company (Los Angeles, CA) |
Apparatus for recording optical information
What is claimed is: 1. An optical information recording apparatus for recording information in an optical information recording medium having reflecting layer and information recording layer in which ... Read More
Inventors: Horimai, Hideyoshi;, Assignee: Optware Corporation (Tokyo, JP) |
Device and method of fabricating color conversion table and medium recording program for forming color conversion table
Accordingly, it is an object of the present invention to provide a device and a method for fabricating a color conversion table, capable of forming a color conversion table optimized to a given enviro... Read More
Inventors: Fukasawa, Kenji; Kasahara, Hirokazu;, Assignee: Seiko Epson Corporation (Tokyo, JP) |
Holographic display element and method of making the same
In view of the above-described problems with the prior art, an object of the present invention is to provide a holographic display element for three-dimensionally displaying a three-dimensional model ... Read More
Inventors: Kodama, Daijiro; Watanabe, Masachika;, Assignee: Dai Nippon Printing Co., Ltd. (Tokyo, JP) |
Multiple-resolution scanning device
The present invention is a multiple-resolution scanning device that changes paths of light to have the multiple-resolution. The scanning device is embodied as a multiple-resolution scanning device whi... Read More
Inventors: Sheng, Thomas; Chen, Chi Yao; Shiao, Hyman; Lee, Yueh Shing; Tu, Roger; Wu, Yung Chuan;, Assignee: Avision Inc. (Hsin-Chu, TW) |
Optical signal free-space conversion board
This is a board to transport and convert optical outgoing free-space signals from a spatial light modulator which comprises: at least one detector to process the outgoing free-space signal; at least o... Read More
Inventors: Lin, Tsen-Hwang; Malarcher, Falvey; Sampsell, Jeffrey B.;, Assignee: Texas Instruments Incorporated (Dallas, TX) |
Polyhedral integrated and free space optical interconnection
OF THE INVENTION FIG. 1 shows a prior art communications system using holographic optical elements. A substantially planar plate 100 is optically transmissive. Holographic optical elements 115, 116, ... Read More
Inventors: Erteza, Ireena A.;, Assignee: |
Component for optical data transmission
The object of the invention is to provide an infrared transceiver having dimensions which are significantly smaller so that material costs and space requirements will be reduced. According to the inve... Read More
Inventors: Schairer, Werner;, Assignee: Vishay Semiconductor GmbH (Heilbronn, DE) |
Image processing apparatus
In printing a plurality of image data, for example, C, M, Y and K data overlaid together, difference in the main scanning magnification index among each other, or difference in the pixel counts along ... Read More
Inventors: Ito, Akira;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
Process and recording media for continuous wave four-level, two-photon holography
We claim: 1. A recording medium for holography, said medium comprising a transparent resin containing from 10.sup.-5 to 0.1 gram/cc of a tetrazine compound. 2. A medium as claimed in claim 1 wherein t... Read More
Inventors: Alvarez, David C.; Bjorklund, Gary C.; Burland, Donald M.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Process for the preparation of aryldimethyl(3-aryl-propyl)silanes
I claim: 1. A process for the preparation of a compound of the formula I ##STR13## where X is CH.dbd.CH, N.dbd.CH, CH.dbd.N or S, R.sup.1 and R.sup.2 independently of one another are H, halogen, (C.su... Read More
Inventors: Schubert, Hans H.;, Assignee: Hoechst Aktiengesellschaft (Frankfurt am Main, DE) |
Optical information storage on a bacteriorhodopsin - containing film
Accordingly, it is an object of the invention to provide an organic medium suitable for the processing and storage of optical information. It is another object of the invention to provide an oriented ... Read More
Inventors: Lewis, Aaron; Chen, Zhongping; Takei, Hiroyuki;, Assignee: Cornell Research Foundation, Inc. (Ithaca, NY) |
Method and system for maintaining and controlling the signal-to-noise ratio of hologams recorded in ferroelectric photorefractive materials
What is claimed is: 1. A hologram with improved diffraction efficiency and readout characteristics, comprising: a ferroelectric photorefractive recording medium having an optical interference pattern ... Read More
Inventors: Wilde, Jeffrey P.; Hesselink, Lambertus;, Assignee: Board of Trustees of the Leland Stanford Junior University (Palo Alto, CA) |
Asymmetrical dyes with large two-photon absorption cross-sections
We claim: 1. A two-photon absorbing chromophore of the formula D--Ar--A wherein Ar is selected from the group consisting of ##STR7## D is selected from the group consisting of ##STR8## and A is select... Read More
Inventors: Reinhardt, Bruce A.; Bhatt, Jayprakash C.; Brott, Lawrence L.; Clarson, Stephen J.;, Assignee: The United States of America as represented by the Secretary of the Air (Washington, DC) |
Two-photon upconverting dyes and applications
The present invention relates to a composition which includes a matrix material and a styryl compound dispersed therein. The styryl compound has the formula: ##STR1## wherein D is an electron donating... Read More
Inventors: Prasad, Paras N.; Bhawalkar, Jayant D.; He, Guang S.; Zhao, Chan F.; Gvishi, Raz; Ruland, Gary E.; Zieba, Jaroslaw; Cheng, Ping Chin; Pan, Shan Jen;, Assignee: The Research Foundation of State university of New York (Amherst, NY) |
Two-photon or higher-order absorbing optical materials and methods of use
Many of the compounds useful according to the invention can be described by one of four structural motifs. These compounds exhibit enhanced two-photon or multi-photon absorptivities and allow one to c... Read More
Inventors: Marder, Seth; Perry, Joseph;, Assignee: California Institute of Technology (Pasadena, CA) |
Signalling system
According to one aspect, the present invention provides an alternative point to multipoint signalling system. According to this aspect, the present invention provides a point to multipoint signalling ... Read More
Inventors: Green, Alan E.; Morrison, Euan; Pettigrew, Robert M.;, Assignee: Quantumbeam Limited (Ickleton, GB) |
Method and apparatus for recording one-step, full-color, full-parallax, holographic stereograms
The present invention overcomes many of the above-noted limitations and problems of prior art hologram printers and methods used to print holographic stereograms with the following structures and meth... Read More
Inventors: Klug, Michael; Holzbach, Mark; Ferdman, Alejandro;, Assignee: Zebra Imaging, Inc. (Pflugerville, TX) |
Fixed solar concentrator-collector-satelite receiver and co-generator
I claim: 1. A fixed position solar concentrator and power generator, including in combination; a planar hologram window comprised of a transparent medium having a thickness accomodating a multiplicity... Read More
Inventors: Meckler, Milton;, Assignee: |
Double hologram
The invention claimed is: 1. A method of providing an article with one polymer area bearing a hologram as identifying information comprising: calculating one computer generated hologram such that at l... Read More
Inventors: Noehte, Steffen; Gerspach, Matthias; Dietrich, Christoph; Borgsmuller, Stefan; Blazejewski, Anna; Stadler, Stefan; Leiber, Jo;, Assignee: Tesa Scribos GmbH (Heidelberg, DE) |
Chemical analysis apparatus
The primary object of the present invention is to provide a chemical analysis apparatus wherein the temperature in a slide housing compartment of an incubator is accurately maintained at a predetermin... Read More
Inventors: Muraishi, Katsuaki;, Assignee: Fuji Photo Film Co., Ltd. (Kanagawa, JP) |
Decorative article
GB-A-2125337 describes security printing of articles which bear holographic devices. These optically variable devices are however affixed to substrates and as such can be detached, albeit with difficu... Read More
Inventors: Chatwin, Charles E.; Kay, Ralph;, Assignee: De La Rue Holographics Ltd. (London, GB) |
Method for producing picture element groups by means of laser rays in space and on a plane
OF THE PREFERRED EMBODIMENTS The apparatus pursuant to FIG. 2 comprises a x-deflection mirror 3 and a y-deflection mirror 4, which has a cutout 11 in the middle. Part of the image beam reflected by t... Read More
Inventors: Rü, diger;, Assignee: |
Functional devices comprising a charge transfer complex layer
It is an object of the invention to provide a functional device which makes use of a charge transfer complex of a specific type whereby the neutral-ionic or ionic-neutral phase transition can be cause... Read More
Inventors: Yamashita, Akio; Yoshimura, Susumu; Tsuchiya, Sohji;, Assignee: Matsushita Electric Industrial Co., Ltd. (JP) |
Method of fabricating an electrolytic cell employing a solid polymer electrolyte
In accordance with the present invention, I have discovered that a working electrolytic cell can be fabricated using a sol-gel solid electrolyte employing in the liquid phase a salt which is stable in... Read More
Inventors: Ehrlich, Grant M.;, Assignee: Yardney Technical Products, Inc. (Pawcatuck, CT) |
System and method for steering focal plane data using cylindrical coordinates to access data locations in a holographic memory
To address the above-discussed deficiencies of the prior art, the present invention provides systems and methods for steering a complex, spatially-modulated incident beam of coherent light to gain acc... Read More
Inventors: Campbell, Scott Patrick; Curtis, Kevin Richard; Tackitt, Michael C.;, Assignee: Lucent Technologies Inc. (Murray Hill, NJ) |
Scanning module
It is an object of the present invention to provide a simple, miniature scanning module allowing its optical path length to be easily adjusted. A scanning module of the present invention includes a li... Read More
Inventors: Muramatsu, Shigeki;, Assignee: NEC Corporation (Tokyo, JP) |
Illumination device and method for laser projector
One or more of the problems outlined above may be solved by the various embodiments of the invention. The present invention performs a similar function as a lenslet array optical system, but does so m... Read More
Inventors: Kappel, David; Fischer, Robert E.; Tadic-Galeb, Biljana;, Assignee: Riake Corporation (Houston, TX) |
Air filter material
What is claimed is: 1. An air filter material comprising: (1) an upper fibrous layer to be disposed at upperstream position of influent air, containing 50 to 70% by weight of polyester fiber having a ... Read More
Inventors: Ichihara, Hiroo; Ohta, Yuzuru;, Assignee: Nippondenso Co., Ltd. (JA) |
Wavelength allocation in a ring
It is an object of the present invention to provide a method of wavelength allocation that allows creating a fully meshed network at the optical layer when the nodes are connected, at the physical lay... Read More
Inventors: Archambault, Sylvain S.;, Assignee: Nortel Networks Limited (St. Laurent, CA) |
Optical Systems 
