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)
07/1981
07/21/1981CA1105601A1 Electrochromic devices
07/21/1981CA1105596A1 Crossover connections for multiplexed electrooptic displays
07/21/1981CA1105544A1 Optical screens
07/21/1981CA1105248A1 Method of indirectly connecting two parts
07/21/1981CA1105247A1 Method of indirectly connecting two parts
07/15/1981EP0031870A2 Device for measuring very small temperature differences over micrometric distances
07/14/1981US4278974 Driving system of display
07/14/1981US4278953 Near millimeter wavelength modulator and tunable oscillator
07/14/1981US4278902 Tunable 16-micron coherent source including parahydrogen Raman transition and method
07/14/1981US4278329 Electrochromic device with transmissive counter electrode
07/14/1981US4278328 Guest-host liquid crystal display device
07/14/1981US4278327 Liquid crystal matrices
07/14/1981US4278326 Liquid crystal display element
07/14/1981US4278325 Electronic timepiece
07/14/1981CA1104806A1 Electrolyte for electrochromic display device
07/08/1981EP0031475A1 Liquid-crystal cell which can be heated
07/07/1981US4277786 Multi-electrode liquid crystal displays
07/07/1981US4277784 Switch scanning means for use with integrated circuits
07/07/1981US4277517 Diffusion, dopes, oxidation to form electroconductor pattern in dielectric material
07/07/1981US4277275 Method for fabricating liquid crystal display element
07/07/1981US4277147 Display device having reduced electrochromic film dissolution
07/07/1981US4277146 Visible and infrared intensity limiter
07/07/1981US4277145 Liquid-crystal display device
07/07/1981US4277144 Electro-optic passive display cell
07/07/1981US4277143 Liquid crystal cell having electrodes on adjacent plates connected by a contact bridge and the process of producing same
07/07/1981CA1104699A1 Method of forming matt display electrode
07/01/1981EP0031282A2 Molecular crystals of nitropyridine-N-oxide derivatives substituted by a chiral radical
07/01/1981EP0031281A1 Use of 3-Methyl-4-nitropyridine-1-oxide and 3,5-dimethyl-4-nitropyridine-1-oxide crystals for non linear optics
07/01/1981EP0031263A1 Non-linear optical device comprising a composite waveguide, and radiation source using such a device
07/01/1981EP0031143A2 Memory device
07/01/1981EP0031021A1 Tetrahydroquinazolines, process for their preparation, liquid crystalline dielectrics containing them and electro-optical display element
07/01/1981EP0031015A1 Device for driving and controlling the operation of an electro-optic data display, consisting of liquid crystal display elements (LCD device)
06/1981
06/30/1981US4276633 Self-luminescent light source for liquid crystal display watch
06/30/1981US4275494 Method for manufacturing liquid crystal display elements
06/25/1981WO1981001767A1 A method for recording signals on bands by means of laser beams and apparatus for carrying out the method
06/24/1981EP0030879A1 Mixture of disc-like liquid crystals, electrooptical device using such a mixture and method for the orientation of the molecules in the mixture
06/24/1981EP0030875A1 Illuminating device for a large screen
06/24/1981EP0030732A2 Transparent electrically conductive film and process for production thereof
06/24/1981EP0030600A1 Liquid-crystal cell
06/23/1981US4275302 Method and device for converting thermal images into secondary images, e. g. visible images
06/23/1981US4275144 Method of fabricating electrodes with narrow gap therebetween
06/23/1981US4274713 Device with a scatter-free light valve
06/23/1981US4274710 Optical wave circulators
06/17/1981EP0030493A1 Display cell, in particular an electrolytic one, with porous barrier
06/17/1981EP0030387A2 Analog liquid crystals voltage display
06/17/1981EP0030277A1 Partially hydrogenated oligo-1,4-phenylenes, dielectrics containing them and electro-optical indicating device
06/17/1981EP0030262A1 An acousto-optic transducer device
06/16/1981US4273422 Light valve containing liquid suspension including polymer stabilizing system
06/16/1981US4273420 Liquid crystal display device
06/16/1981US4273411 Optical wavelength filter
06/11/1981WO1981001618A1 Mechanically multistable liquid crystal cell
06/10/1981EP0029985A1 Printed wiring board for recording or displaying information
06/09/1981US4272825 Temperature compensation of tunable acoustic optical filters
06/09/1981US4272694 System for converting the frequency of coherent radiation
06/09/1981US4272596 Electrophoretic display device
06/09/1981US4272195 Method and apparatus for determining the wavelength of light
06/09/1981US4272164 Bright source attenuating device for an image intensifier
06/09/1981US4272163 Electrochromic indicator
06/09/1981US4272162 Guest-host liquid crystal display device
06/09/1981US4272159 Optical circulator
06/09/1981US4272158 Broadband optical diode for a ring laser
06/09/1981US4272157 Multi-stable optical system
06/03/1981EP0029777A1 Optical attenuator with controlled attenuation
06/03/1981EP0029737A1 Electro-optical switching devices
06/02/1981US4271410 LCD Data processor driver and method
06/02/1981US4270862 Magneto-optic light deflector system
06/02/1981US4270847 Electro-optical light modulation element
06/02/1981US4270846 Electro-optical display device
06/02/1981US4270841 Light valve containing suspension of perhalide of alkaloid acid salt
06/02/1981CA1102437A1 Method for converting luminosity values into isochromates
06/02/1981CA1102432A1 Controlled beam projector
05/1981
05/27/1981EP0029162A1 Compositions presenting liquid-crystal phases, process for their production and their use
05/26/1981US4270050 Apparatus for measuring pressure by absorption spectrum change
05/26/1981US4269617 Coating the edges of a substrate with a sealant and firing; coating a holding material to the exterior of another substrate; superimposing accurately, rifing and sealing
05/26/1981US4269511 Apparatus and method for measuring the magnitude of polarization of light
05/26/1981US4269482 Simultaneous multi-beam optical modulation system
05/26/1981US4269481 Multiple-cavity electro-optic tunable filter
05/26/1981US4269480 Process and apparatus for displaying an image in front of an optical contrasting background
05/26/1981CA1101706A1 Acousto-optical imagery system based on coherent holographic detection in real time
05/20/1981EP0029006A1 Optical image intensifier
05/19/1981US4268871 Scanning optical system for formation of a half tone image
05/19/1981US4268127 Light transmitting and reflecting polarizer
05/19/1981US4268126 Thermal-pane window with liquid crystal shade
05/19/1981US4268116 Method and apparatus for radiant energy modulation in optical fibers
05/13/1981EP0028548A1 Real-time optical correlation system
05/13/1981EP0028538A1 Optical apparatus and method for minimizing refractive index damage therein
05/13/1981EP0028294A1 Passive electrooptic display device
05/12/1981US4267509 Magneto-optical colloidal cell and device
05/12/1981US4266859 Liquid crystal display device
05/12/1981US4266850 Integrated bias for waveguide amplitude modulator
05/12/1981US4266335 By coating electrodes with a solution of a transition metal compound under a inert atmosphere
05/12/1981CA1101112A1 Transparent seal for liquid crystal display cells
05/06/1981EP0028147A1 Electro-optical light transmission controlling panel
05/06/1981EP0027855A1 Electrochromic display device
05/05/1981US4265974 Fluorine dope, semiconductors
05/05/1981US4265517 Acousto-optic device and method using tellurite glass composition
05/05/1981US4265516 Display device with a light valve operated in a time division multiplex method
05/05/1981CA1100615A1 Liquid crystal electro-optical device
05/05/1981CA1100614A1 Membrane deformographic display, and method of making
04/1981
04/29/1981EP0027758A1 Automatic gain control device using optical means in a system for transmitting electric signals by an optical link
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