Patents
Sitemap › G02 - Optics › G02F - Devices or arrangements, the optical operation of which is modified by changing the optical properties of the medium of the devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating or demodulating; Techniques or procedures for the operation thereof; Frequency-changing; Non-linear optics; Optical logic elements; Optical analogue/digital converters › G02F 1 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
Patents for G02F 1 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics (257,845)
08/1991
08/20/1991US5041824 Semitransparent electrophoretic information displays (EPID) employing mesh like electrodes
08/20/1991US5041823 Flicker-free liquid crystal display driver system
08/20/1991US5041822 Liquid crystal display unit
08/20/1991US5041602 Cinnamic acid used as inexpensive starting material
08/20/1991US5041510 Acrylic copolymers exhibiting nonlinear optical response
08/20/1991US5041509 Side chain copolymers exhibiting nonlinear optical response
08/20/1991US5040896 Three-crystal temperature-compensated reference interferometer for source wavelength stabilization
08/20/1991US5040883 Light fixture with beam shaping lens
08/20/1991US5040879 Variable density optical filter
08/20/1991US5040878 Illumination for transmissive displays
08/20/1991US5040876 Liquid crystal light modulators with asymmetrical interfaces
08/20/1991US5040875 Active matrix liquid crystal display having a high contrast ratio
08/20/1991US5040874 Liquid crystal display device having interlaced driving circuits for black line interleave of a video signal
08/20/1991US5040865 Frequency multiplying electro-optic modulator configuration and method
08/20/1991US5040864 Optical crosspoint switch module
08/20/1991US5040863 Optical isolator
08/20/1991US5040859 Infra-red radiation modulator
08/14/1991EP0441595A2 An active matrix display device
08/14/1991EP0441591A2 A method for driving a liquid crystal panel
08/14/1991EP0441463A1 Capillary electrophoresis technique
08/14/1991EP0441398A2 Display panel unit
08/14/1991EP0441211A2 Active fibre optical amplifier, with double-core portions, having a wide signal wavelength band
08/14/1991EP0440771A1 5-oxy-2-phenylazines and mesomorphous medium
08/14/1991EP0440762A1 5-oxy-2-phenylpyridines and liquid-crystal materials.
08/14/1991EP0440683A1 Digital computer with multiprocessor arrangement.
08/14/1991EP0440643A1 Fluorinated 4''-cyano substituted terphenyls.
08/14/1991EP0301021B1 Amide liquid crystal compounds: mixtures and devices using them
08/14/1991DE4103914A1 Interferometer for detecting optical wavelength variations - has waveguides providing measuring arm and 2 reference arms of differing optical wavelength
08/14/1991DE4004206A1 Liq. crystal element, useful as rotating polariser etc. - has LC layer on substrate, with electrodes arranged to produce rotating electric field in plane of LC layer
08/14/1991CN1053844A Optical articles for wavelength conversion and their manufacture and use
08/14/1991CN1053769A Non-photographic method for patterning organic polymer films
08/14/1991CN1013528B Data access card of ferro-electric liquid crystals
08/13/1991US5040098 Backlight for an electronic display
08/13/1991US5040033 On same semiconductor chip
08/13/1991US5039209 Light-to-light conversion method and display unit using the same
08/13/1991US5039208 Polymer stretched to provide high degree of uniform alignment
08/13/1991US5039207 Liquid crystal display device with prismatic light transmitting member
08/13/1991US5039206 Liquid crystal displays
08/13/1991US5039205 Liquid crystal electro-optical device
08/13/1991US5039204 Color filter layer of a liquid crystal display
08/13/1991US5039201 Double-pass tunable fabry-perot optical filter
08/13/1991US5039199 Lightwave transmission system having remotely pumped quasi-distributed amplifying fibers
08/13/1991US5039190 Apparatus comprising an optical gain device, and method of producing the device
08/13/1991US5039189 Optical signal distribution network and method of converting independent optical/electrical signals
08/13/1991US5039186 Production of nonlinear optically responsive polymeric waveguides
08/13/1991US5039185 Homeotropic liquid crystal display device
08/13/1991US5038950 Method and apparatus for joining together associated metal conductors of a layer structure with an insulating layer provided therebetween
08/13/1991CA1287496C Dashboard clock
08/08/1991WO1991012462A1 Side chain copolymers exhibiting nonlinear optical response
08/08/1991WO1991011747A1 Bistable electrochirally controlled liquid crystal optical device
08/08/1991WO1991011746A1 Tilted homeotropic liquid crystal cell, manufacture thereof and double-layered liquid
08/08/1991WO1991011546A1 Doped crystalline compositions and a method for preparation thereof
08/08/1991WO1991009026A3 Phenyldioxanes
08/08/1991DE4103720A1 Liquid crystal display unit with high multiplexing performance - has liquid crystal cell with helical crystal layer between electrode substrate subject to alignment process
08/08/1991CA2070287A1 Side chain copolymers exhibiting nonlinear optical response
08/07/1991WO1991012555A2 Optical switches
08/07/1991EP0440495A2 A transmissive display device
08/07/1991EP0440485A2 A laser beam emitting apparatus
08/07/1991EP0440392A2 Ferroelectric liquid crystal cells
08/07/1991EP0440379A2 Lighting device
08/07/1991EP0440343A2 Improvements in or relating to colour filters for liquid crystal cells
08/07/1991EP0440144A2 Substrate for liquid crystal display device
08/07/1991EP0440136A2 Liquid crystal composition and liquid crystal device containing the same
08/07/1991EP0440134A1 Mesomorphic compound, liquid crystal composition containing same, liquid crystal device using same and display apparatus
08/07/1991EP0440049A1 Integrated optical signal amplifier
08/07/1991EP0440024A2 Multistage optical fibre amplifier
08/07/1991EP0439867A1 Optical power amplifier with doped active fibre
08/07/1991EP0439631A1 Optical deflector
08/07/1991EP0282527B1 Method for making an amorphous aluminum-nitrogen alloy layer
08/07/1991EP0135582B1 Semiconductor device for controlling light using multiple quantum wells
08/07/1991CN1053714A Optical power amplifier with doped active fibre
08/07/1991CN1013470B Projection device and associated display device
08/06/1991US5038359 Self-pumped, optical phase conjugation method and apparatus using pseudo-conjugator to produce retroreflected seed beam
08/06/1991US5038352 Laser system and method using a nonlinear crystal resonator
08/06/1991US5038166 Optical image recording apparatus
08/06/1991US5038102 Speed sensor utilizing magneto-optics switch actuated by magnetic field rotation
08/06/1991US5037582 Dipolar organic compound in polyoxyalkylene matrix, waveguides
08/06/1991US5037576 Liquid crystal compounds, mixtures and devices
08/06/1991US5037185 Liquid crystal cell provided with bubble traps
08/06/1991US5037181 Claddings for single crystal optical fibers and devices and methods and apparatus for making such claddings
08/06/1991US5037173 Optical interconnection network
08/06/1991US5037169 High speed low loss optical switch for optical communication systems
08/06/1991US5037168 Optical waveguides
08/06/1991CA1287427C Epoxy type spherical particulate adhesive and process for preparation thereof
08/06/1991CA1287391C Electro optical switch architectures
08/01/1991DE4102802A1 Stereoscopic projector - has projection lenses supported in adjustable holders to avoid image distortion
08/01/1991DE4002369A1 Multistage fibre=optic amplifier - provides constant amplification over large range of wavelengths using selective directional coupler and pump light source
08/01/1991DE4002146A1 Electro-optical LC system
07/1991
07/31/1991WO1991011795A1 Liquid crystal display panel system and method of using same
07/31/1991EP0439393A1 Spatial electro-optic modulator and uses
07/31/1991EP0439350A2 Second-harmonic wave generating element
07/31/1991EP0439185A2 Liquid crystal compound
07/31/1991EP0439152A2 Method of and apparatus for controlling deflection of optical beam
07/31/1991EP0439146A2 Image forming device and two-dimensional optical scanning device
07/31/1991EP0439118A2 Liquid crystal display apparatus
07/31/1991EP0438924A2 Method of electrophotographic printing
07/31/1991EP0438817A1 Double cell twisted nematic LCD and color display device employing same
07/31/1991EP0438811A2 Esters of 3-halogeno- or 3-cyano-substituted 2-methylalkanecarboxylic acids and their use as doping agents in liquid-crystalline compositions
07/31/1991EP0438810A2 Use of polyaryletherketones as orientation layers
07/31/1991EP0438575A1 Benzol derivatives and liquid crystalline medium.
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