Parabolic optical waveguide horns and design thereof
OF THE INVENTION A plan view of a two-dimensional channel waveguide 10 of width W feeding into a linear horn 12 is shown schematically in FIG. 1. It is desired to expand W but maintain nearly adiabat... Read More
Inventors: Burns, William K.; Milton, A. Fenner;, Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC) |
Illuminating optical system for endoscopes
In view of the above mentioned points, a primary object of the present invention is to provide an illuminating optical system for endoscopes wherein the illuminating light amount on the periphery of t... Read More
Inventors: Nishioka, Kimihiko; Kimura, Hiroyuki;, Assignee: Olympus Optical Co., Ltd. (Tokyo, JP) |
Magneto-optic rotator
The present invention comprises a single, continuous uninterrupted strand of single mode fiber optic material which is wrapped about a mandrel to form oval-shaped loops having parallel sides and curve... Read More
Inventors: Lefevre, Herve C.; Bergh, Ralph A.;, Assignee: The Board of Trustees of the Leland Stanford Junior University (Stanford, CA) |
Microprocessor-driven laser ceilometers
This object, among others which will appear hereinafter, is achieved in this invention by utilizing a commercially-available laser diode array instead of a single laser diode. The laser diode array is... Read More
Inventors: Frungel, Frank; Rohr, Jurgen;, Assignee: |
Multifunction reprographic apparatus
According to the invention there is provided a multifunction reprographic apparatus, comprising means enabling a choice of at least one photocopy of an original and at least one photograph of an objec... Read More
Inventors: Luscher, Fred;, Assignee: |
Illumination system for a photographic copying apparatus
We claim: 1. A light diffuser for a light projecting apparatus having a light source comprising a plurality of elongated lens elements of substantially uniform cross section, a holder for the lens ele... Read More
Inventors: Long, John G.; Watts, Nicholas P.;, Assignee: Durst (U.K.) Limited (Epsom, GB2) |
Positioning method
A object of the present invention is to provide a method capable of positioning objects with good reproducibility, the objects having geometrical patterns with bright and dark tones, or with concavity... Read More
Inventors: Suwa, Kyoichi; Kuramochi, Kazuo; Nakazawa, Kiwao;, Assignee: Nippon Kogaku K. K. (Tokyo, JP) |
Interconnected array of photosensors for simultaneously sensing light intensities at each of a number of locations
The photosensitive array according to the invention can readily be manufactured monolithically without a significant number of conductor crossovers and does not require switches to interrogate its pho... Read More
Inventors: Ondris, Miroslav;, Assignee: Stemcor Corporation (Cleveland, OH) |
Method and apparatus for mixing particulate material
The present invention comprises a method for mixing granular, particulate or pulverant materials and an apparatus for carrying out this method. This apparatus includes a trough structure having rigid ... Read More
Inventors: Prew, Stanley R.;, Assignee: Koppers Company, Inc. (Pittsburgh, PA) |
Ophthalmologic photographing apparatus
It is therefore a general object of the present invention to provide a photographing apparatus of an ophthalmologic instrument, wherein an object portion to be photographed is measured in light volume... Read More
Inventors: Ohtomo, Fumio; Takahashi, Susumu;, Assignee: Tokyo Kogaku Kikai Kabushiki Kaisha (Tokyo, JP) |
Synchronization system for variable length encoded signals
The primary object of the present invention is to assure synchronization of variable bit length encoded signals which are subject to data transmission errors. A related object of the present invention... Read More
Inventors: Ching, Yau Chau; Chow, Ming-Chwan;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Polyester interlayer and binder component in multilayer photoconductive element
We claim: 1. In a unitary multilayer photoconductive element having a photoconductive insulating composition in electrical contact with a conductive layer, the improvement wherein said element compris... Read More
Inventors: Berwick, Martin A.; Riecke, Edgar E.;, Assignee: Eastman Kodak Company (Rochester, NY) |
Electrically programmable non-volatile semiconductor memory device
An object of the present invention is to provide an electrically programmable non-volatile semiconductor memory device in which, when the test is carried out in advance for checking the undesirable ha... Read More
Inventors: Yoshida, Masanobu;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Photographic silver halide material containing 2-equivalent yellow couplers
What is claimed: 1. In a light sensitive color photographic material containing at least one silver halide emulsion layer and a 2-equivalent yellow coupler having an activated open-chain ketomethylene... Read More
Inventors: Boie, Immo; Lowski, Dieter;, Assignee: AGFA-Gevaert, A.G. (DT) |
Electro-optical switching apparatus
What we claim is: 1. Optical switching apparatus for optically coupling at least one photo-emitter circuit of a plurality of such photo-emitter circuits disposed as an emitting matrix to at least one ... Read More
Inventors: d'Auria, Luigi; Huignard, Jean-Pierre;, Assignee: Thomson-CSF (Paris, FR) |
Dual function antenna structure and a portable radio having same
OF THE PREFERRED EMBODIMENTS FIG. 1 illustrates a dual function antenna structure according to a first embodiment of the present invention. A primary antenna structure is provided by a primary antenn... Read More
Inventors: Thill, Kevin M.; Kurby, Christopher N.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Hyperboloidal deployable space antenna
The hyperbolodial deployable antenna 10 seen in FIG. 1 is collapsed and as seen in FIGS. 2 and 3 is fully expanded. It includes a first framework 11 that includes multiple frame members 12a and 12b, ... Read More
Inventors: Waters, Terrance J.; Waters, Michael T.;, Assignee: |
Display screen duplication system and method
An object of the present invention is to provide a screen transfer method that is efficient in use of CPU resources, memory and bandwidth. Another object of the present invention is to provide a scree... Read More
Inventors: Szamrej, Mark;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Microstrip line resonator with a feedback circuit
To achieve the purpose of removing such drawbacks, a dielectric resonator according to the invention is provided that comprises an inverse feedback loop circuit comprising an active element such as a ... Read More
Inventors: Forterre, Gerard E. E.; Guillon, Pierre;, Assignee: Tekelec Airtronic (FR) |
Method for manufacture of oxide ceramic bodies with a high surface area-to-mass ratio and high strength
I claim: 1. A method for the manufacture of monocrystalline oxide ceramic bodies comprising: forming a mixture of (1) an aluminumm oxide (2) a fluoride component consisting of one or more fluoride com... Read More
Inventors: Erkens, Herbert E.;, Assignee: |
Method of making a high band-gap opto-electronic device
One main reason prior devices have not achieved the higher band-gap possible is that unlike Al.sub.x Ga.sub.1-x As, (Al.sub.x Ga.sub.1-x).sub.y In.sub.1-y P is not intrinsically lattice-matched to GaA... Read More
Inventors: Kuo, Chih-Ping; Fletcher, Robert M.; Osentowski, Timothy D.;, Assignee: Hewlett-Packard Company (Palo Alto, CA) |
Process for preparing high molecular weight polyether resins from bisphenols and epoxy resins
OF THE PREFERRED EMBODIMENTS Suitable epoxy resins which can be employed as Component (A) in the process of the present invention are the glycidyl ethers of bisphenols such as, for example, those rep... Read More
Inventors: Clarke, James Albert;, Assignee: The Dow Chemical Company (Midland, MI) |
Process for producing bromomethylated polyphenylene ethers
What is claimed: 1. A process for producing a bromomethylated polyphenylene ether, comprising the step of reacting a polyphenylene ether having the formula ##STR3## wherein R.sub.1 and R.sub.2 are eac... Read More
Inventors: Grundmann, Raban;, Assignee: Huels Aktiengesellschaft (Marl, DE) |
Head-mounted display
Accordingly, one object of the invention is to provide a head mount display device which comprises an image display means, a magnifying optical means, and a switching means. The magnifying optical mea... Read More
Inventors: Karasawa, Joji;, Assignee: Seiko Epson Corporation (Tokyo, JP) |
Magnetic recording tape
We claim: 1. A coated sheet material characterized by outstanding wear resistance, scratch resistance and processability, said sheet material comprising in combination a biaxially oriented flexible po... Read More
Inventors: Brekken, Roger A.; Evans, Edgar L.; Olson, George F.;, Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN) |
Electron-beam image transfer device
The object of the present invention is to provide an electron-beam image transfer device which eliminates the need to open the specimen chamber to the atmosphere each time the specimen is changed, mak... Read More
Inventors: Sugihara, Kazuyoshi; Tojo, Toru; Mori, Ichiro; Shinozaki, Toshiaki;, Assignee: Tokyo Shibaura Denki Kabushiki Kaisha (Kawasaki, JP) |
Radiation image converting material
It is an object of the present invention to provide radiation image converting materials such as a radiographic intensifying screen and a radiation image storage panel, which are improved in the sensi... Read More
Inventors: Yamazaki, Kikuo; Kitada, Akira;, Assignee: Fuji Photo Film Co., Ltd. (JP) |
Fixing apparatus and recording apparatus
An object of this invention is to provide a fixing apparatus ensuring a satisfactory fixing strength despite carrying out a continuous fixation without using a preheater and a heater roll for use on t... Read More
Inventors: Mitsuya, Teruaki; Fujiwara, Shigetaka; Endou, Michio; Terakado, Akira;, Assignee: Hitachi, Ltd. (Tokyo, JP); Hitachi Koki Co., Ltd. (Tokyo, JP) |
Image tube cathode
What is claimed is: 1. A photocathode comprising a substrate having thereon, a photoemissive layer, an electrically resistive layer underlying the photoemissive layer, and terminal means electrically ... Read More
Inventors: Ruedy, John E.; Morton, George A.;, Assignee: RCA Corporation (New York, NY) |
Electron beam microfabrication apparatus and method
What is claimed is: 1. An electron beam microfabrication apparatus comprising: a substantially spherically curved female surface for receiving thereon a patterned photocathode; a semiconductor wafer h... Read More
Inventors: Amboss, Kurt;, Assignee: Hughes Aircraft Company (Culver City, CA) |
Optical Systems 
