Liquid crystal lenses having a Fresnel lens
It is an object of the present invention to provide liquid crystal lenses which eliminate the disadvantage of a liquid crystal lens employing the above described conventional Fresnel lens and which ha... Read More
Inventors: Okada, Takao; Shimazu, Hisanari; Toda, Akitoshi; Sato, Susumu;, Assignee: Olympus Optical Co., Ltd. (JP) |
Side chain liquid crystalline polymeric media exhibiting third order nonlinear optical response
What is claimed is: 1. An optical light switch or light modulator device with a polymeric nonlinear optical component comprising a transparent solid medium of a liquid crystalline polymer which is cha... Read More
Inventors: Leslie, Thomas M.; Yoon, Hyun-Nam; DeMartino, Ronald N.; Stamatoff, James B.;, Assignee: Hoechst Celanese Corp. (Somerville, NJ) |
Acrylic copolymers exhibiting nonlinear optical response
What is claimed is: 1. An isotropic acrylic copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR9## where m and m.sup.1 are integers which total at least 1... Read More
Inventors: DeMartino, Ronald N.; Yoon, Hyun-Nam;, Assignee: Hoechst Celanese Corp. (Somerville, NJ) |
Perfluoroalkyl group-containing copolymers
OF THE PREFERRED EMBODIMENTS The invention provides perfluoroalkyl group-containing copolymers prepared from at least two different monomers comprising, in each case, a polymerizable ethylenically un... Read More
Inventors: Muller, Werner H.; Schneller, Arnold;, Assignee: Hoechst Aktiengesellschaft (Frankfurt am Main, DE) |
Modular rod lens assembly and method of making the same
OF PREFERRED EMBODIMENTS Referring to the drawings, FIG. 1 illustrates an endoscope 10 equipped with a modular rod lens assembly 11 embodying the present invention. The lens assembly comprises an out... Read More
Inventors: MacAnally, Richard B.;, Assignee: American Hospital Supply Corporation (Evanston, IL) |
Multidirectional viewing borescope
To this end, the present invention is directed toward an elongated, flexible, tubular inspection instrument characterized as having a control head at its proximal end and an objective assembly at its ... Read More
Inventors: D'Amelio, Frank D.; Esposito, Dominick G.; Kobyra, Walter B.;, Assignee: Circon Corporation (Santa Barbara, CA) |
Photographing data indicator for a single lens reflex camera
To eliminate the described disadvantages of the prior art, it is an object of the invention to provide photographing data indicator for a single lens reflex camera which permits a plurality of types o... Read More
Inventors: Terada, Katumi;, Assignee: Olympus Optical Company (JP) |
Waste toner container detector
The object of the present invention is to provide a waste toner container detector for detecting when the toner container is full and stopping the copying operation comprising a piston which moves in ... Read More
Inventors: Ogura, Mitsuru; Okada, Kenji;, Assignee: Sharp Kabushiki Kaisha (Osaka, JP) |
Automatic inspection system for detecting foreign matter
The above-described drawbacks in the prior art apparatus have been successfully eliminated by the present invention. Accordingly, it is an object of the present invention to provide an automatic inspe... Read More
Inventors: Saitoh, Michihiro; Gogami, Takatoshi; Osada, Toshiyuki;, Assignee: Showa Electric Wire & Cable Co., Ltd. (JP) |
Electrochromic light regulator
Accordingly, the present invention has as its essential object to provide an improved electrochromic light regulator which substantially avoids the disadvantages inherent in the conventional device of... Read More
Inventors: Kawamura, Kunio; Yasukuni, Mitsuo; Iida, Takashi; Suzuki, Yuziro;, Assignee: Minolta Camera Kabushiki Kaisha (JP) |
Electromagnetically driven shutter
An object of the present invention is to eliminate the above-described drawbacks and to provide an electromagnetically operated shutter of which the electromagnetic drive source has a magnetic winding... Read More
Inventors: Yoshida, Syozo; Sugiura, Yoji;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Polymers of tricyclo[5.2.1.0.sup.2,6 ]deca-8-yl (meth)acrylate
It is an object of this invention to provide a polymer excellent in transparency and heat resistance overcoming the disadvantages of known transparent resins. It is another object of this invention to... Read More
Inventors: Kawai, Hiromasa; Morinaga, Takashi; Miyajima, Hiromu; Akima, Toshio; Kato, Mitsuharu; Hosoi, Yutaka;, Assignee: Hitachi Chemical Company, Ltd. (Tokyo, JP) |
Hard contact lens material consisting of alkyl fumarate and silicon-alkyl fumarate copolymers
OF THE INVENTION In accordance with the present invention, there is provided a hard contact lens material made of a copolymer comprising at least two kinds of fumaric acid diesters at least one of wh... Read More
Inventors: Kawaguchi, Toru;, Assignee: Tomei Sangyo Kabushiki Kaisha (Nagoya, JP) |
Magneto-optical head assembly with improved detection means
An object of the present invention is to overcome the problem areas discussed for the abovementioned magneto-optical head, and also to provide a head which is capable of receiving an accurate light sp... Read More
Inventors: Deguchi, Toshihisa; Ohta, Kenji; Takahashi, Akira; Yamaoka, Hideyoshi;, Assignee: Sharp Kabushiki Kaisha (Osaka, JP) |
Optical recording and reproducing device with normalization of servo control signal using switchable automatic gain control circuitry
An object of the present invention is to provide a control circuit wherein the number of offset adjustment parts is small, high precision is easily obtained, and it can be manufactured in the same int... Read More
Inventors: Yoshida, Toshifumi; Nabae, Mitsuo; Nishinaka, Yasuo; Moriya, Mitsuro;, Assignee: Matsushita Electric Industrial Co., Ltd. (Kadoma, JP) |
Optical recording/reproducing apparatus
The present invention is contrived in consideration of these circumstances, and is intended to provide an optical recording/reproducing apparatus affording a good distance between the converging point... Read More
Inventors: Matsubayashi, Nobuhide; Kato, Kiichi; Sakamoto, Masaharu;, Assignee: Olympus Optical Co., Ltd. (Tokyo, JP) |
Compact high-vari-focal ratio zoom lens system
It is, therefore, a primary object of the present invention to provide a compact high vari-focal ratio zoom lens system which is to be used with a camera with a lens shutter or the like to which a par... Read More
Inventors: Yamanashi, Takanori;, Assignee: Olympus Optical Co., Ltd. (Tokyo, JP) |
Process and apparatus to cut laminated glass
What is claimed is: 1. In an apparatus to cut laminated glass, comprising two platelike supports for a laminated glass sheet to be cut, of which one can swivel around an axis running in an impact area... Read More
Inventors: Lisec, Peter;, Assignee: |
Method of forming a conductive and reflective thin metal film suitable for a reflective LCD device and a device produced by the method
An object of the present invention is to provide a method by which a thin metal film is formed in a cost-effective way and by a simple process that involves applying a coating composition. Another obj... Read More
Inventors: Yamamoto, Akira; Ohata, Masashi; Seio, Mamoru;, Assignee: Sharp Kabushiki Kaisha (Osaka, JP) |
Thermoelectric display cell for recording images line by line
The object of the present invention is to increase the speed with which the image is recorded in a layer of material showing a thermo-electric effect of the type in question using elements enabling th... Read More
Inventors: Hareng, Michel; Le Berre, Serge;, Assignee: Thomson-CSF (Paris, FR) |
Paper cutter for facsimile apparatus
What is claimed is: 1. A facsimile reception apparatus including printing means for reproducing received facsimile images on a continuous roll of paper and cutter means for cutting the paper in respon... Read More
Inventors: Takahashi, Shuichi; Kondo, Mitsuru;, Assignee: Ricoh Company, Ltd. (Tokyo, JP) |
Method and apparatus for coordinate dimming of electronic displays
The present invention overcomes the problems of the prior art by increasing the number of brightness level steps selectable for a fixed clock frequency and by providing a non-linear brightness control... Read More
Inventors: Knight, Eric M.; Greene, Edward S.;, Assignee: Ford Motor Company (Dearborn, MI) |
Method of determining and storing color printing information
In accordance with the present invention, a method of determining a set of color correction values includes generating a set of three gray mapper, or gamma, curves and utilizing the curves in determin... Read More
Inventors: Clark, David A.; Boyer, Barbara J.;, Assignee: R. R. Donnelley & Sons Company (Chicago, IL) |
Process for aligning an optical fiber forming part of an optical transmission cable with an opto-electronic component, an adapter, and a coupling head comprising use of the process
The invention aims at simplifying the device used by producing, at one or more judiciously-chosen points on the opto-electronic head or the adapter, a small permanent deformation providing the desired... Read More
Inventors: Henry, Raymond; Simon, Jacques; Levy, Daniele; Carpenter, Jean-Francois; Defaut, Bernard;, Assignee: Thomson-CSF (Paris, FR) |
Electroacoustic transducer of the so-called "electret" type, and a method of making such a transducer
We claim: 1. An electroacoustic transducer comprising a substrate of a semi-conductor material with a recessed portion; a membrane across said recessed portion, set in vibration in response to an inpu... Read More
Inventors: Sprenkels, Adrianus J.; Bergveld, Piet;, Assignee: Microtel B.V. (Amsterdam, NL) |
Universal world clock
This invention pertains to a universal clock in which a world map projected from the south pole is positioned relative to the user such that the user's geographical location on the map is oriented ver... Read More
Inventors: Wright, James B.;, Assignee: |
Method and apparatus for displaying textual or graphic data on the screen of television receivers
According to the invention, foreign language VCR and/or television commands arc transmitted to the viewers home, in the VBI or via another transmission link. The foreign language commands are then sto... Read More
Inventors: Kwoh, Daniel S.;, Assignee: Gemstar Development Corporation (Pasadena, CA) |
Controller for remotely controlling two or more controlled devices
1. A control system comprising: a remote control apparatus; and a controlled apparatus controlled by the remote control apparatus; wherein the controlled apparatus includes a receiving unit adapted to... Read More
Inventors: Sato, Keiji;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Portable emergency breathing apparatus
In accordance with the present invention, closed circuit breathing apparatus is comprised of component parts which are structured and structurally interrelated to provide optimum compactness for the a... Read More
Inventors: Bartos, Josef A.;, Assignee: Respirator research, ltd. (Willoughby, OH) |
Solar energy apparatus
I claim: 1. A solar energy collector apparatus comprising an energy absorbing means for absorbing solar energy, and a controllable energy transmittance material overlying the absorbing mean, and contr... Read More
Inventors: Rajagopal, Ramamoorthy;, Assignee: Johnson Controls, Inc. (Milwaukee, WI) |
LCD 
