Self calibrating scanner with single or multiple detector arrays and single or multiple optical systems
Accordingly, it is a general object of the present invention to provide a system for image scanning and digitizing using a reseau for accuracy, but without obscuring the image to be scanned. A more sp... Read More
Inventors: Leberl, Franz W.; Jorde, Christian; Gruber, Michael;, Assignee: Vexcel Imaging GmbH (AT) |
Holographic verification system with indexed memory
The present invention provides a holographic data verification system which is capable of simultaneously verifying numbers, as the term is defined above, belonging to one or more number systems, e.g. ... Read More
Inventors: Sutherlin, Kent K.; Crowther, Ted J.; Salmond, Kent A.;, Assignee: Optical Data System (Mountain View, CA) |
Manufacture of security tapes and security threads
What is claimed is: 1. A method of manufacturing a laminate structure for use in a security thread or tape comprises: i) providing a first structure having a flexible carrier supporting an optically v... Read More
Inventors: Kay, Ralph;, Assignee: De la Rue International Limited (Hampshire, GB) |
Hydraulic transfer method and device and hydraulic-transfer article
What is claimed is: 1. A liquid pressure transfer method for transferring a print pattern on a transfer film floating along a surface of a liquid within a transfer bath onto a three dimensional transf... Read More
Inventors: Suzuki, Eiji; Suzuki, Makoto; Otaki, Nobuyuki; Kiyotaki, Tomomi;, Assignee: Cubic Co., Ltd. (Shizuoka-Ken, JP) |
Use of fresnel zone plates for material processing
It is an advantage of the present invention to provide a system which uses diffractive optics techniques to form an arbitrary pattern for machining and material processing. It is a further advantage o... Read More
Inventors: Hunter, Jr., Robert O.; Smith, Adlai H.; Guest, Clark C.; McArthur, Bruce B.;, Assignee: Litel Instruments (San Diego, CA) |
Ambient turn-on suppression hologram
These and other objects of the invention are provided by a hologram which includes a light source, an image hologram member for forming an image when illuminated by the light source, and a guard holog... Read More
Inventors: Smith, Ronald T.;, Assignee: Hughes Aircraft Company (Los Angeles, CA) |
Method of producing switchable holograms
A method of producing a switchable hologram generally comprises providing a substrate composed of a liquid crystal material and having two generally opposed surfaces and recording a plurality of holog... Read More
Inventors: Popovich, Milan M.;, Assignee: Digilents, Inc. (Sunnyvale, CA) |
Suture clip with reduced hinge mass
The invention is an improved surgical clip. The clip is of the type comprising first and second leg members joined at their proximal ends by a resilient hinge region and terminating at their distal en... Read More
Inventors: Bruker, Izi; Zwaskis, William J.; Jamiolkowski, Dennis D.;, Assignee: Ethicon, Inc. (Somerville, NJ) |
Switchable lens/diffuser
The above problems and others are at least partially solved and the above purposes and others are realized in a switchable lens/diffuser including an optical component constructed to form an optical i... Read More
Inventors: Jachimowicz, Karen E.; Lebby, Michael S.;, Assignee: Motorola (Schaumburg, IL) |
Method for making an optical device using a laser beam interference pattern
To resolve the above described problems in the existing state of the art of the display devices based on polymer dispersed liquid crystal technology, the present invention provides an optical device c... Read More
Inventors: Tanaka, Keiji; Kato, Kinya; Tsuru, Shinji; Sakai, Shigenobu;, Assignee: Nippon Telegraph and Telephone Corporation (Tokyo, JP) |
Optics arrangements including light source arrangements for an active matrix liquid crystal image generator
As will be described in more detail hereinafter, a system for producing modulated light is disclosed. The system comprises a spatial light modulator including a light modulating medium switchable betw... Read More
Inventors: Handschy, Mark A.; Meadows, Michael R.; Chase, Holden;, Assignee: Displaytech, Inc. (Boulder, CO) |
VLSI visual display
The present invention provides a visual display which comprises a miniature display compatible with VLSI technology to display thereon images having desired quality but are generally too small to be v... Read More
Inventors: Alvelda, Phillip; Knight, Jr., Thomas F.;, Assignee: |
Apparatus for displaying image recognized by observer as stereoscopic image, and image pick-up apparatus
It is an object of the present invention to provide an image display apparatus and an image input apparatus, which can improve observability by setting different display conditions of images to be pre... Read More
Inventors: Sudo, Toshiyuki;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Display device having diffraction grating
The object of the present invention is to provide a display device having a diffraction grating which can realize a high definition display, by effectively treating a diffracted light of zeroth order ... Read More
Inventors: Suzuki, Toshihiro; Iigahama, Yukio; Yamaguchi, Hisashi; Gotoh, Takeshi; Hamada, Tetsuya; Hayashi, Keiji; Tomita, Junji; Aritake, Hirokazu; Kobayashi, Tetsuya; Sugawara, Mari; Fukuhara, Motohiko; Yoshioka, Koji; Takahara, Kazuhiro;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Virtual retinal display
We claim: 1. An apparatus for displaying an image directly on the retina of an eye comprising: a light source; a source of video signals; an optical modulator for modulating light from said light sour... Read More
Inventors: Furness, III, Thomas Adrian; Kollin, Joel S.;, Assignee: Board of Regents of the University of Washington (Seattle, WA) |
Bi-directional optical transmission system
The present invention provides the desired bi-directional transmission system. The present invention achieves the bi-directional transmission capability with reduction or avoidance of optical beat int... Read More
Inventors: Gnauck, Alan H.; Lu, Xiaolin; Woodward, Sheryl Leigh;, Assignee: AT&T Corp. (New York, NY) |
Automotive holographic signal lamp
To provide an improvement in automotive signal lamps over that previously provided, the present invention is brought forth. The present invention in a preferred embodiment provides an automotive signa... Read More
Inventors: Allred, Christopher S.; Landwehr, Dewayne A.;, Assignee: General Motors Corporation (Detroit, MI) |
Method and means for reducing undesirable effects of dirt particles on a flexible record device
The present invention provides methods and means for reducing the undesirable effects of bumps, dust or dirt particles between a rigid platen of an apparatus for recording or reading and a flexible re... Read More
Inventors: Caraballo, Angel;, Assignee: Eastman Kodak Company (Rochester, NY) |
Hologram and method of and apparatus for producing the same
It is an object of the present invention to provide a hologram in which the optical contacting liquid is made uniform and thin in thickness and which can be duplicated without any hindrance even if a ... Read More
Inventors: Suga, Kazuhiro; Sekiguchi, Atsushi; Ueda, Kenji; Nishimura, Hiroyuki;, Assignee: Dai Nippon Printing Co., Ltd. (Tokyo, JP) |
Reflectors for photolithographic projection and related systems and methods
It is therefore an object of the present invention to provide improved photolithographic projection systems. It is another object of the present invention to provide improved reflectors for a photolit... Read More
Inventors: Kim, Cheol-hong; Sohn, Chang-jin;, Assignee: Samsung Electronics Co., Ltd. (KR) |
Image reading apparatus
The invention presents a novel method to improve the resolution of the read image, and particularly reproduce edges of the original image at an excellent contrast, which is moving the line image senso... Read More
Inventors: Toyomura, Yuji; Mizusaki, Masakazu; Kitagawa, Shoichi; Narazaki, Masanobu;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
Beam scanning system adopting deflection disc
An object of the present invention is to provide a beam scanning system adopting a diffractive reflection disc, in which the deflection disc has hologram patterns on both upper and lower surfaces ther... Read More
Inventors: Cho, Sung-min; Lee, Won-hyung; Choi, Hwan-young; Lee, Moon-gyu; Min, Jee-hong; Kim, Young-il; Choi, Jin-seung; Eum, Jae-yong;, Assignee: Samsung Electronics Co., Ltd. (Kyungki-Do, KR) |
Carrier film and process for producing the same
It is an object of the present invention to provide a carrier film in which a cover resist layer is formed on a heat-resistant resin film including a conductive wiring pattern, the cover resist layer ... Read More
Inventors: Shimoto, Tadanori; Matsui, Koji;, Assignee: NEC Corporation (Tokyo, JP) |
High-efficiency polarized light source
The attainment of these and related objectives may be achieved through the use of the optical polarization system herein described. This invention has a source of unpolarized light, a polarizing means... Read More
Inventors: Loucks, Bryan E.;, Assignee: Greyhawk Systems, Inc. (Milpitas, CA) |
System for the display of images given by a spatial modulator with transfer of energy
This is why the invention relates to a system for the display of images comprising: a spatial modulator of light receiving a first light beam and retransmitting a modulated beam; an energy transfer de... Read More
Inventors: Puech, Claude; Huignard, Jean-Pierre; Papuchon, Michel; Raobenbach, Henri; Loiseaux, Brigitte;, Assignee: Thomson-CSF (Puteaux, FR) |
Fiber optic diffraction grating maker
To achieve the foregoing and other objects, this invention comprises a novel improved compact and portable diffraction grating maker. The improved grating maker is comprised of a laser beam, optical a... Read More
Inventors: Deason, Vance A.; Ward, Michael B.;, Assignee: The United States of America as represented by the United States (Washington, DC) |
Head up display unit, liquid crystal display panel, and method of fabricating the liquid crystal display panel
We claim: 1. A head up display unit comprising: transparent and flat image information display means having a front surface; transparent and flat light irradiating means, said light irradiating means ... Read More
Inventors: Asakawa, Shiro; Tsutsui, Hiroshi; Taketomi, Yoshinao; Okuda, Eiichiro;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
Method and apparatus for maximizing the visual quality of image presented in electric form
OF THE INVENTION Referring to the block diagram in FIG. 1, the procedure of the invention works as follows. An image e.g. in an RGB format is received in block 4 and converted into an Ls.alpha. forma... Read More
Inventors: Saarelma, Hannu; Laihanen, Pekka;, Assignee: Teknillinen Korkea Koulu Graafisen Tekniikan Laboratorio (Espoo, FI) |
Encoded security document
Security documents of value, prepared in accordance with the present invention, are made difficult to counterfeit by placing thereon an invisible coating having a machine-detectable physical character... Read More
Inventors: Weitzen, Edward H.; D'Amato, Salvatore F.; Fleming, Robert M.; Kuehnle, Manfred R.; Ekman, C. Frederick; Kruse, Jurgen; Weber, Harold J.;, Assignee: Coulter Systems Corporation (Bedford, MA) |
Side alignment mark
This invention overcomes the above-noted disadvantages. An apparatus in accordance with this invention includes an alignment mark that is formed in a substrate. The mark extends across a dice line so ... Read More
Inventors: Newman, Thomas H; Kappel, Norbert;, Assignee: Ultratech Stepper, Inc. (San Jose, CA) |
Optical Systems 
