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)
03/1990
03/06/1990US4906949 Monomode optical source and an optical amplifying device tuneable in the near infra red and application to selective and regeneration amplifying devices
03/06/1990US4906752 Liquid-crystal 5-phenylpyrimidine derivatives having sc or sc* phases and a process for preparing them
03/06/1990US4906407 Azomethine compositions having nonlinear optical properties
03/06/1990US4906401 Use of liquid-crystal 5-phenylpyrimidine derivatives as components of smectic liquid-crystal mixtures
03/06/1990US4906074 FLC liquid crystal electro-optical device having microdomains within pixels
03/06/1990US4906073 Liquid crystal display device using nematic liquid crystal having twisted helical structure and a phase correction plate
03/01/1990DE3927121A1 Kollinearer akustooptischer modulator Collinear acousto-optic modulator
02/1990
02/28/1990EP0356302A1 Method and device for the optical filtration and photodetection of intensity-modulated signals
02/28/1990EP0356288A1 Method and device for back-lighting a liquid-crystal matrix screen
02/28/1990EP0356273A1 Main and secondary optical sensor device
02/28/1990EP0356189A2 Semiconductor optical amplifier with shortened gain recovery time
02/28/1990EP0356178A1 Image forming apparatus utilizing a light image memory
02/28/1990EP0356099A2 Electrochromic device
02/28/1990EP0356056A1 Optical phase modulator
02/28/1990EP0356044A2 Liquid crystal display device and method of producing the same
02/28/1990EP0356041A2 Non-linear optical element
02/28/1990EP0355915A1 Frequency doubling device
02/28/1990EP0355627A2 Improved electronic transparency method and apparatus
02/28/1990EP0355585A2 Processes for producing color display material and color filter
02/28/1990EP0355561A1 Use of optically active tetrahydrofuran-2-carboxylic-acid esters in doping liquid-crystal mixtures, liquid-crystal mixtures containing them, and optically active tetrahydrofuran-2-carboxylic-acid esters
02/28/1990EP0355552A2 Alkoxymethyl- and alkenyloxymethyl-cyclohexanes
02/28/1990EP0355326A2 Nonlinear optical material
02/28/1990EP0355274A2 Multicolored laser source
02/28/1990EP0211855B1 Optical components
02/28/1990CN1040024A 2,3-difluorophenol derivatives
02/27/1990US4905037 Image transfer system
02/27/1990US4904989 Display device
02/27/1990US4904637 Recording material comprising chromogenic 3,1-benzoxazines
02/27/1990US4904409 Liquid crystal has high twistability
02/27/1990US4904079 Liquid crystal display device for overhead projector
02/27/1990US4904066 Electro-optical devices using liquid crystal polymers
02/27/1990US4904065 Liquid crystal optical element and method of producing the same using ferroelectric polymer liquid crystal
02/27/1990US4904064 Electronic addressing of ferroelectric and flexoelectric liquid crystal devices
02/27/1990US4904063 Liquid crystal lenses having a Fresnel lens
02/27/1990US4904061 Projection-type liquid crystal display device with even color
02/27/1990US4904060 Liquid crystal display cell having a diffusely-reflective counter electrode
02/27/1990US4904059 Liquid crystal display element having a nonconducting layer of particular index of refraction
02/27/1990US4904058 Liquid crystal display panel
02/27/1990US4904057 Liquid crystal device with a smectic chiral liquid crystal and with a rectifier in series with each pixel
02/27/1990US4904056 Cured photopatterned polyimides
02/27/1990US4904045 Grating coupler with monolithically integrated quantum well index modulator
02/27/1990US4904039 Electro-optic devices utilizing a sapphire substrate
02/27/1990US4904038 Guided wave optical frequency shifter
02/27/1990CA1266334A1 Imaging system employing x-ray induced scintillation in a crystal spatial modulator
02/22/1990WO1990001724A1 Organic material for non linear optics
02/22/1990WO1990001723A1 Organic material for non linear optics
02/22/1990WO1990001722A1 Light deflecting element
02/22/1990WO1990001721A1 Process and device for introducing distance elements into a liquid crystal cell
02/22/1990WO1990001720A1 Process for introducing distance elements into a liquid crystal cell
02/22/1990WO1990001719A1 Liquid crystal display without visible spaces between adjacent image elements
02/22/1990WO1990001526A1 Liquid crystal display devices and liquid crystal medium to be used therein
02/21/1990EP0355064A2 Back lighting device for a liquid crystal panel
02/21/1990EP0355008A2 Organosilylalkyl or -alkenyl compounds, process for their preparation and their use in liquid-crystal mixtures
02/21/1990EP0354940A1 Improved liquid crystal mixture
02/21/1990EP0197992B1 Active array display with double addressing transistor
02/21/1990CN1039797A Difluoromethyl compounds
02/20/1990US4902638 Thin film transistor, method of repairing the thin film transistor and display apparatus having the thin film transistor
02/20/1990US4902592 Production of color display
02/20/1990US4902110 Variable transmission optical device
02/20/1990US4902109 Electrochromic device
02/20/1990US4902108 Reverse variable transmittance of light
02/20/1990US4902107 Ferroelectric liquid crystal optical device having temperature compensation
02/20/1990US4902106 Bistable ferroelectric smectic liquid crystal display device having particular orientation film
02/20/1990US4902105 Liquid crystal display device
02/20/1990US4902104 With molecular orientation of liquid crystals
02/20/1990US4902103 Color liquid-crystal display unit with electrodes interleaved in vertical and horizontal directions
02/20/1990US4902088 Integrated optic device for laser beam scanning
02/20/1990US4902087 Fiber optic bypass switch
02/20/1990CA1266124A1 Optical resonant assembly
02/20/1990CA1266114A1 Display cell
02/20/1990CA1266113A1 Liquid crystal display having pixels with auxiliary capacitance
02/20/1990CA1265921A1 Liquid crystalline polymer substrates with orthogonal molecular orientation
02/15/1990DE3921810A1 Kristallin-fluessige nematische gemische Crystalline nematic liquid mixtures
02/15/1990DE3921809A1 Niedermolekulare glasbildende verbindungen und ihre verwendung Low molecular glass-forming compounds and their use
02/14/1990EP0354753A2 Liquid crystal materials
02/14/1990EP0354311A2 Direct generation of ultrafast electrical pulses
02/14/1990EP0124524B1 Interferometer with kerr effect compensation
02/14/1990CN1006826B Acousto-optic dispersive light filter
02/13/1990US4900917 Polarization insensitive optical communication device utilizing optical preamplification
02/13/1990US4900694 Process for the preparation of a multi-layer stacked junction typed thin film transistor using seperate remote plasma
02/13/1990US4900473 Quick response
02/13/1990US4900135 Optical element
02/13/1990US4900134 Optical device
02/13/1990US4900132 Chiral liquid crystal cell
02/13/1990US4900127 Optical article containing a linear polymer exhibiting a high level of second order polymerization susceptibility
02/13/1990US4900115 Optical logic circuit useful for bit serial optic computing
02/13/1990US4900113 Optical spectrum analyzer
02/13/1990US4900112 Integrated optical device and method for manufacturing thereof
02/13/1990US4899503 Dual-pane thermal window with liquid crystal shade
02/13/1990CA1265862A1 Ferroelectric liquid crystal apparatus having protective cover
02/13/1990CA1265861A1 Liquid crystal displays operated by amorphous silicon alloy diodes
02/08/1990WO1990001170A1 Device with main and secondary optical sensors
02/08/1990WO1990001056A1 Difluoromethyl compounds
02/08/1990DE3821821A1 Method for the production of a liquid-crystal cell
02/08/1990DE3821818A1 Liquid-crystal cell
02/07/1990EP0354117A1 Piezoelectric transducer for volume wave generation
02/07/1990EP0354077A1 Non-centrally symmetric liquid crystals for non-linear optics
02/07/1990EP0354070A2 Optical recording medium and the method of recording, reading, and erasing information using it
02/07/1990EP0354058A2 Optical modulation element
02/07/1990EP0354029A2 Electronically variable MTF filter for image sensor arrays
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