Measuring apparatus comprising light optics utilizing cylindrical focusing glass fiber
A focusing glass fiber is an uniform glass fiber whose refractive index varies continuously in a radial direction, the glass fiber itself having convergency equivalent to that of a lens, and recently ... Read More
Inventors: Chikama, Toshio;, Assignee: Machida Endoscope Co., Ltd. (Tokyo, JP) |
Universal electrical connector
The present invention provides a universal electrical connector for the quick connection of the ends of lead wires or various terminal configurations. This connector employs a center post means having... Read More
Inventors: Martin, Charles B.;, Assignee: |
Computer-assisted holographic image formation technique which determines interference pattern data used to form the holographic
It is therefore an object of the present invention to provide a new and improved computer hologram recording technique. It is another object of the invention to provide a new and improved computer hol... Read More
Inventors: Saito, Tutomu; Matsui, Toshikazu;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Dopler extended depth of field imaging system with coherent object illumination
We claim: 1. A holographic Doppler extended depth of field imaging system having coherent object illumination comprising: a. a laser disposed for generating a coherent light beam, said laser having sh... Read More
Inventors: Smith, James L.; Christensen, Charles R.;, Assignee: The United States of America as represented by the Secretary of the Army (Washington, DC) |
Information reading device
It is therefore an object of the present invention to provide an information reading device in which the above-mentioned problems are obviated so that the eclipse of the reflection beam is avoided to ... Read More
Inventors: Inokuchi, Toshiyuki; Baba, Nobuyuki;, Assignee: Ricoh Company, Ltd. (Tokyo, JP) |
Nucleus splitter
It is a first object to provide a method and device for fragmenting nuclei, including "hard" nuclei, in vivo. It is yet another object of the invention to provide a method and device for safely fragme... Read More
Inventors: Pao, David S. C.;, Assignee: |
Cladding material for optical fiber and method for its manufacture
We claim: 1. A cladding material for optical fibers with a core-cladding structure, which comprises a copolymer comprising 70-99.8 wt. % of a fluoroalkyl methacrylate and 30-0.2 wt. % of an N-aliphati... Read More
Inventors: Matsunaga, Tadayo; Suganuma, Heiroku; Fukuda, Tadanori; Nakamura, Genzaburo;, Assignee: Toray Industries, Inc. (JP) |
Liquid crystal display employing light guide plate between cells
It is an object of the invention to provide a liquid crystal display system that can prevent apparent separation of images due to an increase in the viewing angle. The invention provides a liquid crys... Read More
Inventors: Yoshimizu, Toshiyuki;, Assignee: Sharp Kabushiki Kaisha (Osaka, JP) |
Optical fibres for blown installation
It is an object of the present invention to provide an improved coating system for multiple-fibre units. The invention also seeks to provide multi-fibre units having good long-distance blowing perform... Read More
Inventors: Barker, Philip A.; Stockton, David J.; Fisk, Christopher; Jenkins, Peter D.;, Assignee: British Telecommunications public limited company (London, GB2) |
Optical fiber having reduced dispersion
An object of the present invention is to reduce dispersion in an optical fiber waveguide. In accordance with the present invention, dispersion is reduced in a graded index optical fiber waveguide havi... Read More
Inventors: Miller, Stewart Edward;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Optical encoder having only one or two fiber optic cables
I claim: 1. An optical encoder, comprising a multi-colored light source in an active zone, first fiber optic means for conducting light from said source to a passive zone, an optical encoding member i... Read More
Inventors: Hafle, Ralph S.;, Assignee: BEI Electronics, Inc. (Little Rock, AR) |
Method and apparatus for improving image quality of a reduction/enlargement gradient index lens array
We claim: 1. An optical system for transmitting an image of an object lying in an object plane onto an image plane at magnification other than unity, said system including a lens array comprising a pl... Read More
Inventors: Lama, William L.; Rees, James D.;, Assignee: Xerox Corporation (Stamford, CT) |
Two row reduction/enlargement gradient index lens array having square-ended fibers
What is claimed is: 1. A reduction/enlargement lens array comprising a plurailty of gradient index optical fibers arranged in a fan-like configuration each fiber having planar faces perpendicular to t... Read More
Inventors: Harrigan, Michael E.; Rees, James D.; Deibler, Melvin E.;, Assignee: Xerox Corporation (Stamford, CT) |
Distributed refractive index type optical transmission plastic article and method of manufacturing the same
We claim: 1. A distributed refractive index type optical transmission plastic article having a circular cross section of a radius r.sub.0 and a refractive index distribution which substantially approx... Read More
Inventors: Toyoda, Nobuhiko; Mishina, Yoshihiko; Murata, Ryuji; Uozu, Yoshihiro; Oda, Masaaki; Ishimaru, Teruta;, Assignee: Mitsubishi Rayon Company Ltd. (Tokyo, JP) |
Molded waveguide and method for making same
Briefly stated, a method for manufacturing a molded waveguide is provided. A first cladding layer is provided. Channels are formed in the first cladding layer. A second cladding layer is subsequently ... Read More
Inventors: Lebby, Michael S.; Kuo, Shun-Meen; Hartman, Davis H.; Chun, Christopher K. Y.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Optical multiplexer
What is claimed is: 1. An optical multiplexer comprising: a graded-index rod lens having a first end face and a second opposed end face; an output lightwave conductor positioned at said second end fac... Read More
Inventors: Mannschke, Lothar;, Assignee: U.S. Philips Corporation (New York, NY) |
System for disposing of radioactive water
What I claim is: 1. A method for reducing the amount of radioactivity released to the biosphere in connection with the production of gas from a nuclearly stimulated natural gas reservoir created in na... Read More
Inventors: Gotchy, Reginald L.;, Assignee: The United States of America as represented by the United States Energy (Washington, DC) |
Optical information recording and reproducing apparatus including lens supporting mechanism employing cantilever springs
It is therefore an object of the present invention to eliminate the disadvantage in the prior art pickup system. It is another object of the present invention to provide a pickup system which enables ... Read More
Inventors: Wada, Yasumitsu; Makimoto, Seiichi; Ogata, Akihiro;, Assignee: Pioneer Electronic Corporation (Tokyo, JP) |
Optical crosspoint switch having mode-conversion facilities
An improved optical crosspoint switch which can be efficiently and inexpensively fabricated by thin-film techniques and which substantially avoids the problems indicated above is provided by the prese... Read More
Inventors: Gillette, Dean;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Radiation curable cladding compositions
OF PREFERRED EMBODIMENTS The present invention provides curable coating compositions comprised of 100 parts by weight of ethylenically unsaturated monomers which comprise (1) from 10 to 99 parts, pre... Read More
Inventors: Babirad, Stefan A.; Heilmann, Steven M.; Krepski, Larry R.; Rasmussen, Jerald K.;, Assignee: Minnesota Mining and Manufacturing Co. (St. Paul, MN) |
Optical multiplexer/demultiplexer using focusing Bragg reflectors
An exemplary integrated optical multiplexer/demultiplexer 10 of the present invention is illustrated in FIG. 1. The following will describe the operation of arrangement 10 as an optical wavelength di... Read More
Inventors: Henry, Charles H.; Kazarinov, Rudolf F.; Kistler, Rodney C.; Orlowsky, Kenneth J.; Shani, Yosi; Sudbo, Aasmund S.;, Assignee: American Telephone and Telegraph Company (New York, NY) |
Fiber optics communications modules
The present invention provides compact fiber optics coupler modules for interfacing fibers with very low light loss. The modules are characterized by the precise tolerances required in high capacity o... Read More
Inventors: Kapany, Narinder S.; Unterleitner, Fred C.;, Assignee: Kaptron, Inc. (Palo Alto, CA) |
Method of terminating fiber optic connector without polishing optical fiber
OF THE INVENTION Referring to the drawings in greater detail, and first to FIG. 1, the method of the present invention is described herein as being carried out by employing an appropriate fiber optic... Read More
Inventors: Margolin, Mark;, Assignee: Allied Corporation (Morris Township, Morris County, NJ) |
Device for dividing a laser beam
The inventive device for subdividing a light beam, preferably a laser beam, into a plurality of preferably parallel and equidistant beams, or for combining a plurality of beams into one beam, is subst... Read More
Inventors: Ahlen, Hans O. S.;, Assignee: Institutet for Optisk (Stockholm, SE) |
Wavelength-flattened 2x2 splitter for single-mode optical waveguides and method of making same
More specifically, the present invention relates to an optical waveguide coupler device arranged on two laterally adjacent optical waveguides for splitting with wavelength-flattened coupling ratios th... Read More
Inventors: Gonthier, Francois; Ricard, Denis; Lacroix, Suzanne; Bures, Jacques;, Assignee: Ecole Polytechnique (Quebec, CA) |
Apparatus for the stabilization of the output intensity of a laser using a Fabry-Perot cavity
The present invention is universally applicable because it does not rely on any particular properties of the laser system (like the use of a special type of energy supply). It acts directly on the ou... Read More
Inventors: Mitschke, Fedor M.; Mollenauer, Linn F.;, Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories (Murray Hill, NJ) |
Method of controlling the quantity of light in a selected range
To achieve the above objects, there is provided in accordance with the present invention a method of controlling the quantity of light emitted from a semiconductor laser within a selected range, compr... Read More
Inventors: Shimada, Kazuyuki;, Assignee: Ricoh Company, Ltd. (Tokyo, JP) |
Methods for testing optical fibres
What is claimed is: 1. A method for determining the position of a reflective discontinuity in an optical fibre comprising the steps: applying the output of an electrical pulse generator to a semicondu... Read More
Inventors: Gordon, Kevin S.;, Assignee: Northern Telecom Limited (Montreal, CA) |
Solar illumination device
The present invention is an apparatus for concentrating, and reflecting solar illumination for use in the interior of a building. The collector is made of a number of individual components. A stationa... Read More
Inventors: Eijadi, David A.; Bennett, David J.;, Assignee: Bennett, Ringrose, Wolsfeld, Jarvis, Gardner, Inc. (Minneapolis, MN) |
Thin film optical waveguide
FIG. 1 is a pictorial illustration of a prior art integrated-optics device 10. The device 10 is positioned in the path of incident radiation (represented by dashed line 12) supplied by a light source... Read More
Inventors: Kaminow, Ivan Paul; Kogelnik, Herwig Werner;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Optical Systems 
