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| Number | Title | Issue Date |
| 4904038 | Guided wave optical frequency shifter This invention is a frequency shifter for receiving an optical carrier signal input and producing an output including a sideband that is shifted in frequency from the carrier. The frequency shifter includes an optical waveguide formed in a substrate of an... | 02/27/1990 |
| 4883333 | Integrated, solid, optical device A solid optical device for the generation and distribution of radiant energy from 0.3 microns to greater than 10 microns. The device is a system comprising a radian t energy generating solid optical reflector, a radiant energy conducting solide channel an... | 11/28/1989 |
| 4859012 | Optical interconnection networks Multichannel interconnection networks with optical deformable mirror devices as the reconfigurable switching element.... | 08/22/1989 |
| 4849914 | Method and apparatus for registering color separation film An algorithmic based method and apparatus for registering halftone color separations using edge based registration techniques. Digital pictures are taken at two locations on each film, and, following optimal thresholding of the data, the edges are located... | 07/18/1989 |
| 4849912 | Stereo mensuration method An image digitizing and stereo mensuration system for analyzing hard copy photographic, transparency, paper drawing, radar, and other images, features an improved mensuration frame grabbing system utilizing a reseau grid location reference system in which... | 07/18/1989 |
| 4841455 | Reseau apparatus for photogrammetry devices A mensuration apparatus for converting film images and paper drawings into digital photogrammetric arrays to be computer processed, displayed, mensurated and analyzed. This mensuration apparatus includes a table on which a translatable camera and a reseau... | 06/20/1989 |
| 4838637 | Integrated solid state non-volatile fiber optic switchboard A fiber-optic switchboard is developed consisting of a plurality of n input fibers, n input lenses, n light deflecting elements, n relay lenses, a multifaceted reflector, m output lenses, and m output fibers. Each input lens causes an image of the end of ... | 06/13/1989 |
| 4836635 | Active base for an optical connector The active base comprises a body (10) having a cylindrical hole (12) in which an optical module (13) is inserted, said module being constituted by a socket (22) about an axis XX', a hollow cylindrical support (26) having a bottom including a hole, a diode... | 06/06/1989 |
| 4834496 | Optical fiber sensors for chemical detection Distributed region optical sensors for chemical detection are provided by utilizing optical fiber technology. A core is provided with a surrounding region that is permeable to the chemical to be detected. A composition whose optical characteristics are al... | 05/30/1989 |
| 4834497 | Fiber optic fluid detector Particular gases or liquids are detected with a fiber optic element (11, 11a to 11j) having a cladding or coating of a material (23, 23a to 23j) which absorbs the fluid or fluids and which exhibits a change of an optical property, such as index of refract... | 05/30/1989 |
| 4834482 | Optical fiber coupler An optical fiber coupler for injecting light into, and withdrawing light from, an optical fiber utilizes a deformable material (8) and a clamping member (4) which clamp a buffered optical fiber (6) therebetween. Both the clamping member and deformable mat... | 05/30/1989 |
| 4832544 | Milling machine The present invention provides an improved piston milling machine. The invention milling machine in a preferred embodiment incorporates a breakaway lift arm whereupon a workpiece caught in the machinery will not damage the lift arm assemblies of the machi... | 05/23/1989 |
| 4832431 | Apparatus for continuous polarization and phase control Apparatus for continuous reset-free polarization and phase control which includes an optical strip waveguide 10 in which two waves TE and TM mode are polarized orthogonally relative to each other and have mutually different propagation constants ଲ | 05/23/1989 |
| 4832626 | Adapter An improved space-saving, clearly arranged, and safe adapter apparatus for mechanical and electrical connection of installation devices such as automatic circuit breakers, motor protection switches, contactors, relays, and the like with bus rails of a bus... | 05/23/1989 |
| 4832627 | Input adapter for a bus bar system An improved input adapter for electrically connecting input leads with the bus rails of a bus bar system. Connection at any desired location along the bus rails is made possible without drilling holes in the bus rails by an arrangement in which contact pl... | 05/23/1989 |
| 4830463 | Article comprising silica-based glass containing aluminum and phorphorus It has been discovered that fused silica doped with approximately equimolar amounts of Al and P, has advantageous properties that make such co-doped glass useful in a variety of applications, including optical fiber, especially polarization-maintaining op... | 05/16/1989 |
| 4830452 | Optical switching system An optical routing device comprising a housing block containing a plurality of intersecting holes or other light guides, and at least one control rod which can be selectively introduced into any of said light guides so that a light reflection means, such ... | 05/16/1989 |
| 4830456 | Optical connector and process for producing the same An optical connector comprises an optical fiber connector ferrule which comprises a substrate plate having at least one optical fiber groove and pin grooves each being formed at one surface thereof, and a cover plate joined to the substrate plate to form ... | 05/16/1989 |
| 4828350 | Fiber optic mode selector An all fiber mode selector comprises a single-mode optical fiber and a double-mode optical fiber, each having a facing surface formed on one side of the cladding. The facing surfaces are juxtaposed in close facing relationship. The fibers are selected so ... | 05/09/1989 |
| 4828348 | Fiber optic telescope Disclosed is a fiber optic telescope composed of at least one fiber optic telescopic cell. The fiber optic cell is composed of a refracted light conveyor and a reflected light retriever. The refracted light conveyor is comprised of a lens, a cone, a dual ... | 05/09/1989 |
| 4826275 | Optical communication systems using star couplers Optical communication system having repeater amplifiers cascaded with plurality of optical star couplers wherein each star coupler is coupled to an associated set of terminals. Each star coupler has two mixing sections serially disposed between its input ... | 05/02/1989 |
| 4826277 | Transition of a multiple fiber cable to single fiber cable A transition 1 of a multiple fiber cable 2 to one or more single fiber cables 4,4 includes, a multiple fiber cable 2 comprising an outer sheath 10 and strength members 11 and multiple optical fibers 3,3 contained in and sheathed by the outer sheath 10, on... | 05/02/1989 |
| 4827464 | Slider servo device A slider servo device in which a quantity of deviation of an information reading spot of a pickup from a recording track of an information recording disk in the radial direction of the disk is corrected, a servo amplifier for receiving a low-band componen... | 05/02/1989 |
| 4825391 | Depth buffer priority processing for real time computer image generating systems A method for determining color information in a computer image generated display in which the display is divided into a plurality of spans and each span comprises a matrix of pixels, each of the pixels being further divided into a matrix of subpixels, whi... | 04/25/1989 |
| 4824204 | Fiber optic connector that joins multiple, but at least one, fiber optic cables to a dual diametered fiber optic cable and a multiple position clamp to juxtapose a plurality of the said fiber optic connecter Disclosed is a fiber optic connector capable of joining at least one fiber optic cable to a dual diametered fiber optic cable, in which light loss caused by axial offset is eliminated and light loss caused by either angularity offset or gaps between the f... | 04/25/1989 |
| 4822125 | Optical fiber tap An optical fiber tap which is especially useful as a node in a ring topology data processing system. The tap, which does not interrupt the physical continuity of the fiber, has an open position and a closed position. In the open position, a signal passing... | 04/18/1989 |
| 4822123 | Optical radiator An optical radiator for diffusingly radiating sunlight emitted from an optical-conductor cable for the purpose of illumination. In order to illuminate a sufficiently wide region surrounding the optical-conductor cable, a cladding layer of the optical-cond... | 04/18/1989 |
| 4822124 | Optical matrix switch An optical matrix switch comprises 1×M/2 optical switch means of N in number, optical switch groups of N/2 in number, and N/2×1 optical switch means of M in number, where N is a number of inputs, and M is a number of outputs. Each of the 1×M/2 optical ... | 04/18/1989 |
| 4823331 | Focusing detection apparatus The present invention relates to a focusing detection apparatus (1) for detecting a focusing state of an optical recording medium. So as to achieve compactness and low cost of the focusing detection apparatus (1), focusing detection using two photosensors... | 04/18/1989 |
| 4820176 | Electric power supply connector An electric power supply connector such as a plug or a plug adapter for supplying a power source voltage to an electrical appliance. The connector has conductive connecting legs of a metallic material having high electrical conductivity and formed to be p... | 04/11/1989 |
| 4820014 | Optical cable A tape and slot type optical cable having a core with groove dimensions that hold tape shaped optical fibers and also improve the transmission and mechanical strength characteristics of the optical cable. The dimensions require that for a groove having a ... | 04/11/1989 |
| 4820013 | LED array head An LED array head which has a simplified structure and can be produced at a reduced cost. The LED array head comprises an LED array, a plurality of flexible printed circuits connected at faces thereof opposing to light emitting portions of the LED array t... | 04/11/1989 |
| 4818054 | Distribution frame for optical fibers A distribution frame for an optical fibre transmission system comprises a cabinet incorporating at each side at least one side panel supporting a surplus length of cable, a pair of inner panels spaced from the side panels and organizer trays, arranged to ... | 04/04/1989 |
| 4818059 | Optical connector and splicer An optical connector and splicer including an optical fiber positioning member for optical coupling of optical fibers where the coupling is assisted by at least two guide pins. The optical fiber positioning member comprises a substrate plate and a flat pl... | 04/04/1989 |
| 4818049 | Method and apparatus for efficiently conveying light over a distance and effecting controlled illumination by projection thereof Method and apparatus for introducing laser light into one end of a fiber optic cable and extracting at the other end of the cable a laser beam which is apparently collimated and projectable over a certain distance.... | 04/04/1989 |
| 4818058 | Optical connector Disclosed is a connector for optical fibers and components, and a method of manufacture, which provides close alignment. Each fiber is disposed within a plug comprising two blocks placed with their major surfaces in contact. Each block has an array of gro... | 04/04/1989 |
| 4815807 | Collimator lens for optical fiber A collimator lens for an optical fiber is disclosed. The collimator lens comprises a cylindrical member having an effective radius R and effective axial length L. The cylindrical member is formed of optically transparent material having refractive index n... | 03/28/1989 |
| 4815813 | Water resistant communications cable A communications cable comprising a core of at least one transmission media and a plastic jacket includes provisions for preventing the movement of water within the cable. A water blockable yarn (33) or strip (35) is interposed between the core and the ja... | 03/28/1989 |
| 4815809 | Method and apparatus for terminating an optical fiber A method and apparatus for supporting an optical fiber in a ferrule assembly is disclosed. The ferrule assembly includes an elongate ferrule body having a fiber insertion end, a fiber egressing end and an elongate bore therebetween. A fiber capillary is s... | 03/28/1989 |
| 4813754 | Optical fiber cable joint A joint between two different types of optical fiber cables, the tension and compression stresses to which the cables are subjected being withstood in one of the cables by a centrally disposed armor having the optical fibers therearound and in the other o... | 03/21/1989 |
