"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 4134640 | Output/input coupler for multi-mode glass fibers An output/input coupler for multi-mode glass fibers characterized by a substrate, a main line having at least one flat surface, and at least one branch line having one flat surface. The main line and branch line are arranged on the substrate with the flat... | 01/16/1979 |
| 4111523 | Thin film optical waveguide It is known to form an optical waveguiding thin film on a substrate. For various practical reasons, it is often desired that an optical beam coupled to the film be laterally confined so as to propagate only in a longitudinal stripe portion of the film. As... | 09/05/1978 |
| 4089583 | Method for making output/input coupler for multi-mode glass fibers An output/input coupler for multi-mode glass fibers characterized by a substrate and a main line having a square cross section disposed on the substrate and having at least one branch line extending on said substrate therefrom with the branch line having ... | 05/16/1978 |
| 4088389 | Large bandwidth optical communication systems utilizing an incoherent optical source The dispersion of optical signals derived from a spontaneous emitter when coupled into an optical fiber waveguide is substantially reduced by optically coupling a narrow band pass interference filter between the emitter and waveguide. Only a narrow portio... | 05/09/1978 |
| 4070091 | Optical fibre with enhanced security An optical fibre has a light conducting core surrounded by first and second cladding layers of sequentially lower refractive index. A data-carrying signal can be propagated in the core and a monitoring signal--of a higher modal order than the data signal-... | 01/24/1978 |
| 4060308 | Angle selective coupler for optical fibers There is disclosed an angle selective coupler for coupling optical energy into and/or out of optical fibers. The coupler consists of a section of the optical fiber modified in such a way as to allow optical excitation of a plurality of higher order modes ... | 11/29/1977 |
| 4054364 | Apparatus for transmitting light through Cassegrain optics A method and apparatus for efficiently transmitting light through Cassegr type optics by way of fiber optics.... | 10/18/1977 |
| 4045120 | Coupler for optical communication system A coupler for coupling the end of an optical signal transmission line comprising at least one optical waveguide, to a solidstate converter device such as a light emitting diode or a photosensitive diode according to the case, the converter device presenti... | 08/30/1977 |
| 4039250 | Device for signal transmission by means of optical conductors A device for the transmission of light by optical conductors which are arranged in a plurality of bundles that extend between a display surface and a source of illumination and which are gathered together into a strand of conductors at either the display ... | 08/02/1977 |
| 4029391 | Light probe and interface therefor A relatively viscous light transmissive liquid material, such as glycerine or the like, applied to the solid end portion of a light conducting member enhances the optical coupling with a sample or object having an irregular and/or glossy surface to be opt... | 06/14/1977 |
| 4007985 | Multiple function recording and readout system A plural function optical apparatus defined by first and second parallel lensfiche elements positioned with their emulsion sides facing each other and first and second parallel optical screens each spaced from and parallel to a respective face of the lens... | 02/15/1977 |
| 3980395 | Liquid crystal switch for optical waveguide This disclosure is directed to an electrical means for input and output coupling of light in optical waveguides.... | 09/14/1976 |
| 3969014 | Photoresist layer waveguide coupling device A coupling device for coupling light waves between optical components for signal transmission including a developed, transparent, negative photoresist layer interposed between the optical components to be coupled.... | 07/13/1976 |
| 3947088 | Interface for light probe A viscous light transmissive fluid material, such as glycerine or the like, is applied to the solid end portion of a light conducting member of a light probe for optically coupling the latter with a sample having an irregular glossy surface. The fluid int... | 03/30/1976 |
| 3937952 | Keyboard and switches for keyboards A switch for use in a keyboard consists of an input light pipe, one or more output light pipes and means selectively operable to cause light to be reflected from the input light pipe into the output light pipes. The output light pipes are preferably conne... | 02/10/1976 |
| 3936141 | Multiple optical connector A connector to provide multiple input-output couplings to a multi-mode opal transmission line without interrupting the radiation flow. A local scrambling cylinder is placed between a multiple input-output bundle and a bidirectional T-coupler. A mirrored ... | 02/03/1976 |
| 3933410 | Optical connector with single scrambling volume An optical connector to provide input-output coupling to an optical transsion line without interrupting completely the flow of optical radiation. An optically transparent dielectric block is inserted between portions of a fiber bundle transmission line. ... | 01/20/1976 |
| 3932023 | Optical coupler for transmitting light linearly between a single point and plural points An optical coupler having an integrating sphere, a photoreceptor on the sphere at one end of a diametral axis and a number of photoemitters on the sphere equidistant from the other end of the axis and aimed at the photoreceptor so that light signals from ... | 01/13/1976 |