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| Number | Title | Issue Date |
| 4854658 | Radiation deflector assembly A radiation deflector assembly, primarily for deflecting optical radiation, includes three waveguides mounted in V-shaped grooves (2,3,4) of a substrate (1) which are substantially coplanar. A cantilevered beam (6) integral with the substrate (1) is posit... | 08/08/1989 |
| 4852962 | Optical fiber switch using nematic crystal to switch unpolarized optical signals The electro-optical switch in accordance with the invention comprises one or more nematic crystals (7) for the deflection of polarized light. In order to enable deflection of a light beam in two perpendicular directions by means of two electrically contro... | 08/01/1989 |
| 4842367 | Optoelectronic directional coupler for a bias-free control signal An optoelectronic directional coupler (1) has in a coupling area two parallel, coupled lightwave conductors (6a and 6b) with a length (L) as well as electrodes (5a and 5b). Each of the coupled lightwave conductors has one end connected to its individual o... | 06/27/1989 |
| 4818052 | Device for optical switching by fluid displacement and a device for the composition of a line of points In a device for switching a light beam, the conditions of propagation of the beam are modified locally under electric control by interposing on the beam path a fluid which modifies the conditions of refraction of the medium traversed by the beam.... | 04/04/1989 |
| 4807949 | Light waveguide switch A light waveguide switch which has a base member with a flat surface sub-divided by a longitudinally extending channel, a flat plate of a constant thickness being pre-cut to form a tongue and a carrier member, waveguides secured to the tongue and carrier ... | 02/28/1989 |
| 4759597 | Mechanical switch for optical fibers The switch comprises a rigid arm (1) rocking about a transverse shaft (2) mounted on a rigid sole plate (3) and facing a pair of superposed slabs (4, 5). The rocker arm (1) carries a moving optical fiber end (9) which is attached thereto by means of a cap... | 07/26/1988 |
| 4759595 | Integrated optic switch A single-mode electro-optic switch (10 or 10') including a graded index layer (14b or 14b'). Two electro-optic embodiments are disclosed. The first embodiment includes a substrate (12) and a planar waveguide (14) atop the substrate (12) including a graded... | 07/26/1988 |
| 4753501 | Fiber optic rotary switching device A fiber optic rotary switching device having a single optical fiber rotatable between a plurality of optical fibers. The arrangement for rotating the single optical fiber is designed such that the single optical fiber flexes but does not twist with respec... | 06/28/1988 |
| 4705349 | Optical switch An optical switching device (10) is provided whereby light from a first glass fiber (16) or a second glass fiber (14) may be selectively transmitted into a third glass fiber (18). Each glass fiber is provided with a focusing and collimating lens system (2... | 11/10/1987 |
| 4699457 | Optical fiber switch and method of making same An inexpensive and efficient switching device for use with optical fibers is disclosed wherein at least three optical fibers are mounted in the switching device with one of the at least three fibers mounted in a fixed magnetic block and the at least two f... | 10/13/1987 |
| 4688885 | Lightwave component package Disclosed is a device which in one aspect effects a continuous realignment of the optical fiber in transmitters, receivers, or transceivers after the lightwave package is assembled and in use, and in another aspect provides movement of optical fibers or o... | 08/25/1987 |
| 4657339 | Fiber optic switch A fiber optic switch producing optical connections with very low light losses. The switch has constant mechanical and optical properties over long periods of operation. Adjusting elements act on the end of at least one light conductor to move the end face... | 04/14/1987 |
| 4655544 | Electrical shock proof fiber optic control system An electrical shock proof fiber optic control system is disclosed which provides the equivalent of a multiple contact slide switch in optical form along with a fiber optic decoder/interface. Provision is made for single pole switches and multiple throw sw... | 04/07/1987 |
| 4652081 | Optical multi-fibre switch A switch for switching a single fibre to any one of a plurality of fibres by aligning their end faces is composed of a funnel-shaped guide. The single fibre is mounted in the narrow end portion of the guide and the plurality of fibres are held in the wide... | 03/24/1987 |
| 4651343 | Piezoelectric apparatus for positioning optical fibers Apparatus for selectably positioning an optical fiber end along a range of positions comprising a bender assembly including at least one piezoelectric bender element and having a first end thereof arranged for association with one or more optical fiber en... | 03/17/1987 |
| 4634239 | Multiple port optical fiber switch A multiple port electromechanical optical fiber switch provides for the exchange redirection of one common optical path with one of several other optical paths through the switch. It is particularly useful when one standby laser transmitter must be quickl... | 01/06/1987 |
| 4626066 | Optical coupling device utilizing a mirror and cantilevered arm An optical coupling device for diverting light among different transmission elements. The device includes at least one graded-index-of-refraction lens with transmission elements coupled to one surface. At the opposite surface of the lens is a reflecting e... | 12/02/1986 |
| 4611885 | Switch for a light guide circuit The key component of the switch is a transparent frusto conical block (2) having a small base (12) perpendicular to its axis and facing the end of a common light guide (14) and having an elliptical large base (22) inclined relative to the axis (4). The ou... | 09/16/1986 |
| 4569569 | Optical coupling devices A coupler for an optical fibre system includes a retroreflector which because of its properties allows considerable relaxation in the positioning of the fibre in relation to the retroreflector. The principle may be used to provide switches or couplers.... | 02/11/1986 |
| 4568143 | Optical fiber crossover switching apparatus An optical switching apparatus comprises a stationary block and a movable block. The stationary block abuts on one face of the movable block. The stationary block holds a first and a second input optical fiber and a first and a second output optical fiber... | 02/04/1986 |
| 4550483 | Method of manufacturing a structure with a fixed and a movable part provided with optical fibres A method of manufacturing an optical fibre relay structure including fixed and movable parts provided with mutually parallel optical fibres. The fibres are fixed to a base plate in V-shaped grooves with the aid of gluing or bonding. The base plate and fib... | 11/05/1985 |
| 4484793 | Switching device between optical fibers Switching device between optical fibers, for ensuring continuity of transmission between the end of a first fiber (2) and the end of any of a group of other fibers (3). The end of the first fiber (2) is placed at the center (C) of a spherical mirror (1) a... | 11/27/1984 |
| 4445752 | Optical fiber switch with rotary gear movement A switch for making and breaking optical connections of optical fibers, by connecting one fiber to another fiber of a group of fibers. The coupling of fibers is realized in a V-groove in a first holder. The switch comprises two holders, each of which comp... | 05/01/1984 |
| 4415228 | Optical fiber switch apparatus Optical fiber switch apparatus for selectively coupling the end (16) of a first fiber (17) to the ends of a plurality of second fibers (10) circularly arranged within a housing (12) also enclosing the free end (16) of the first fiber (17). The latter (17)... | 11/15/1983 |
| 4415229 | Optical fiber switch apparatus Optical fiber switch apparatus for selectively coupling the end (16) of a first fiber (17) to the ends of a plurality of second fibers (10) circularly arranged within a housing (12) also enclosing the free end (16) of the first fiber (17). The latter (17)... | 11/15/1983 |
| 4384761 | Ferrofluid optical switches A controllable magnetic field influences the position or shape or density distribution of a ferrofluid so that the ferrofluid causes or prevents the coupling of light between optical paths either by physically causing movement of a waveguide (e.g., optica... | 05/24/1983 |
| 4329017 | Fiber optics communications modules The present invention provides modules for interfacing optical fibers with very low light loss and with provision for monitoring of the optical signal. The modules according to the present invention are characterized by the precise tolerances required in ... | 05/11/1982 |
| 4318587 | Electrically actuated switch for light waveguides An electrically actuated switch for opening and closing an optical connection between at least a first and second light waveguide characterized by a common basic member supported in a housing of the switch at one end with the remaining portion of the memb... | 03/09/1982 |
| 4312561 | Optical fibre switches In an optical fibre switch it is important that the ends of the fibres are very accurately aligned after the switching operation so that the minimum amount of light is lost in the switch. This is achieved by mounting an optical fibre in each of the corner... | 01/26/1982 |
| 4304460 | Optical switching device Respective end faces of two or more optical waveguides (23 to 29) are connected on one end face of a focussing rod lens (20) and a reflection means (21) having a reflection plane tilted with a specified angle () to the normal plane to the lens axis... | 12/08/1981 |
| 4303302 | Piezoelectric optical switch A piezoelectric optical switch includes a piezoelectrical element having an optical fiber affixed thereto. A second optical fiber is placed in general proximity to the first optical fiber so that, upon application of a first voltage to the piezoelectric e... | 12/01/1981 |
| 4265513 | Light switch A multichannel light switch including a cylindrical-shaped light-focusing transmission body having a length equal to an odd multiple of one quarter of the pitch of light beam undulation within the body and having a total reflection coating applied to one ... | 05/05/1981 |
| 4261638 | Optical switch with rotating, reflective, concave surface An optical switch is disclosed which relies only on a rotatable, reflective concave surface (3) to couple light between an optical source (1) and a preselected one of a plurality of optical receptors (6). The switch is bidirectional, i.e., the position of... | 04/14/1981 |
| 4245885 | Fiber optic relay switch for precise fiber alignment and method of making the same A fiber optic relay switch is provided for switching an optic signal between at least a first optic fiber and at least two other optic fibers, i.e., a second and third optic fiber. The switch comprises a first section housing the first fiber and second se... | 01/20/1981 |
| 4239332 | Self-aligning fiber optic relay This invention provides for a relay apparatus for use with optical fibers. A first set of optical fiber ends is mechanically secured in a suitably shaped retainer. A second set of optical fiber ends is secured in a second retainer appropriately shaped to ... | 12/16/1980 |
| 4239330 | Multiple optical switch A multiposition optical switch is disclosed in which two quarter-period graded refractive index (GRIN) lenses (1 and 2) having first (1.2 and 2.1) and second (1.1 and 2.2) end surfaces are supported in a structure (33 and 34) in an axially aligned fashion... | 12/16/1980 |
| 4229068 | Fiber optic relay switch A fiber optic relay switch is provided for switching an optical signal from a first fiber to a second fiber. The switch comprises a pair of cylindrical members which are axially aligned and rotatable with respect to each other. Housed in the first member ... | 10/21/1980 |
| 4223978 | Mechanical optical fiber switching device A device (70) for switching optical signal paths of the type utilizing a plurality of light-transmitting optical fibers (40, 50) comprises a flexible elongated sleeve (20) having a longitudinally continuous interior cross section (24) with a plurality of ... | 09/23/1980 |
| 4212513 | Pulse transformer technique for optical switch Optical communication apparatus is disclosed whereby the voltage controlled load device typically requiring a relatively high energizing voltage is operated by means of a wide band step-up pulse transformer and a low voltage power source. The step-up tran... | 07/15/1980 |
| 4204744 | Switch for light conducting fibers A switch for optically connecting a first light conducting fiber selectively with at least one second light conducting fiber characterized by a first light conducting fiber having a magnetic sleeve adjacent the free end thereof, at least one second light ... | 05/27/1980 |
