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)
04/1982
04/13/1982US4324622 Electrophotography
04/13/1982US4324475 Laser component
04/13/1982US4324456 Electrophoretic projection display systems
04/07/1982EP0049145A1 Process for the preparation of a lithium oxide based amorphous material
04/07/1982EP0049036A1 Organic compositions suitable for guest-host liquid crystal device
04/07/1982EP0049035A1 Organic compositions suitable for a guest-host liquid crystal device
04/07/1982EP0048887A1 Liquid crystal composition containing a pleochroic anthraquinone dye
04/07/1982EP0048886A1 Liquid-crystal composition containing a pleochroic anthraquinone dye, and process for the production of such a dye
04/07/1982EP0048855A2 Element for adjusting the transfer of light between light guides
04/06/1982US4323984 Switching equipment using magnetic domains
04/06/1982US4323952 Reflector for varying illumination distribution
04/06/1982US4323504 Cyclohexyl cyclohexyl dioxane liquid crystalline compounds and admixture containing same
04/06/1982US4323472 Liquid crystal admixture
04/06/1982US4323471 Liquid crystal composition
04/06/1982CA1121489A1 Lcds (liquid crystal displays) controlled by mims (metal-insulator-metal) devices
03/1982
03/31/1982EP0048595A1 Line printers
03/31/1982EP0048583A1 Liquid crystal compositions containing pleochroic anthraquinone dyes, liquid crystal devices containing the compositions, and the dyes
03/31/1982EP0048379A2 Planar waveguide Bragg grating structure and its application
03/31/1982EP0048266A1 Spectacle lens having continuously variable controlled density and fast response time
03/30/1982US4322819 Memory system having servo compensation
03/30/1982US4322754 Systems for processing printed data
03/30/1982US4322615 Focus detecting device with shielding
03/30/1982US4322354 5-Substituted-2-(4-cyanophenyl)-1,3,-dioxanes
03/30/1982US4322133 Method of driving electrochromic display device and electrochromic display device therefor
03/30/1982CA1121037A1 Electrochromic display device
03/30/1982CA1120887A1 Method for producing uniform parallel alignment in liquid crystal cells
03/23/1982US4321564 Sequential beam switching of acousto-optic modulator
03/23/1982US4321550 Phase conjugate correction for high gain amplifier systems
03/23/1982CA1120621A1 Liquid crystal display device
03/23/1982CA1120491A1 Liquid crystalline materials
03/23/1982CA1120490A1 Liquid crystal materials
03/17/1982EP0047453A1 4'-(Beta-alkyloxyethoxy)-4-cyanobiphenyl
03/17/1982EP0047367A2 Electrochromic recording paper
03/16/1982US4320475 Monomodal optical fibre hydrophone operating by the elastooptical effect
03/16/1982US4320190 From a transparent and insulating plate
03/16/1982US4319808 Combined acousto-optic device from optically birefringent crystal
03/10/1982EP0047198A2 Display method using a thermo-optical effect with memory in a film of disc-like liquid crystals, and disc-like liquid crystals showing such an effect
03/10/1982EP0047196A1 Optical integrated structure for a conformable directional coupling and system comprising such a structure
03/10/1982EP0047162A1 Kerr effect electro-optical element
03/10/1982EP0046932A2 Mixed crystals, process for their manufacture and application
03/10/1982EP0046873A1 Deformable mirror light modulator
03/09/1982US4319239 CCD Capacitance modulation matrix for liquid crystal displays
03/09/1982US4319186 Signal sensors
03/09/1982US4318591 Polarization switched image rotator
03/09/1982CA1119381A1 Air-resistant crystalline lithium nitride, process for production and use
03/04/1982WO1982000736A1 Generation of stable frequency radiation at an optical frequency
03/04/1982WO1982000654A1 New derivatives of phenic acid,method of obtaining them,liquid crystal material with negative dielectric anisotropy,method of obtaining that liquid crystal material,liquid crystal material with low-frequency inversion of sign of dielectric anisotropy and method of obtaining that liquid crystal material
02/1982
02/24/1982EP0046401A2 Aligning liquid crystal layers
02/24/1982EP0046298A1 Apparatus for measuring a magnetic field
02/23/1982US4317115 Driving device for matrix-type display panel using guest-host type phase transition liquid crystal
02/23/1982CA1118876A1 Electrophoretic display devices with x-y addressing
02/18/1982WO1982000472A1 Derivatives of 2,2-azoimidazole,method for the preparation thereof,liquid crystal material and electro-optical device
02/17/1982EP0045831A1 Passive display device
02/16/1982US4316196 Illumination and light gate utilization methods and apparatus
02/16/1982US4315668 Permeation barrier for display cells
02/09/1982US4315258 Transmissive and reflective liquid crystal display
02/09/1982CA1118086A1 Gasket for liquid crystal light shutter displays
02/03/1982EP0045104A2 Homeotropic nematic display with an internal reflector
02/03/1982EP0044906A2 Solderable layer system
02/02/1982US4313878 4-Substituted phenyl 4'-(5-n-alkyl-1,3-dioxan-2-yl)benzoates
02/02/1982US4313663 Electrooptic diaphragm and circuit operative for causing the diaphragm to open up stepwise and then close to terminate exposure
02/02/1982US4313657 Display device for focus detecting and indicating device for camera
02/02/1982US4313651 Optical beam scanner
02/02/1982CA1117313A1 Fibre optical measuring apparatus
01/1982
01/27/1982EP0044762A1 Light-on-dark electrolytic display device
01/27/1982EP0044759A1 Smectic type A liquid crystal with positive dielectric anisotropy
01/27/1982EP0044666A2 Helichromic compounds and displays
01/27/1982EP0044637A1 Field scanning optical displays, generation of fields therefor and scanning thereof
01/27/1982EP0044618A2 Liquid crystal display devices
01/27/1982EP0044457A2 Process for two-photon holographic recording
01/27/1982EP0044392A1 Electrochromic display device with improved erasing characteristic
01/27/1982EP0044326A1 Conductane transparent laminate, method for the preparation thereof and utilisation thereof
01/26/1982US4312929 Polymeric electrolyte for electro-optical device
01/26/1982US4312773 Liquid crystal compositions
01/26/1982US4312660 Acousto-optic device and method using tellurite glass composition
01/26/1982US4312588 High-speed recording apparatus
01/26/1982US4312562 Optical control device
01/26/1982CA1117207A1 Electrochromic devices
01/26/1982CA1116906A1 Optical coupling nonreciprocal device
01/26/1982CA1116841A1 Liquid-crystalline polymer phase having a cholesteric structure, processes for its preparation and its use
01/21/1982WO1982000206A1 Dual trace electro-optic display
01/20/1982EP0044152A2 Liquid crystal display system having improved temperature compensation
01/19/1982US4312000 Driving technique for electrochromic displays of the segmented type including means for detecting a change in the display state of the segments thereof
01/19/1982US4311993 Multisegment liquid crystal indication system
01/19/1982US4311361 Electrophoretic display using a non-Newtonian fluid as a threshold device
01/13/1982EP0043603A1 Guest-host liquid crystal display device
01/13/1982EP0043449A2 Flat digital electro-optic light deflector
01/12/1982US4310878 Digital feedback control system
01/12/1982US4310858 Telecopying process employing a cell having a smectic liquid crystal and a transmitter-receiver telecopier employing said process
01/12/1982US4310220 Electrochromic display with one porous separator
01/12/1982US4310219 Light diffusing surface structure for a light guide in an information display
01/12/1982US4309814 Manufacture of a multi-layered liquid crystal display panel
01/12/1982CA1116279A1 Laser gyroscope system
01/12/1982CA1116226A1 Apparatus and method for correcting imperfection in a polygon used for laser scanning
01/12/1982CA1116005A1 Photochromic aziridine recording media
01/06/1982EP0042999A2 High-speed analogue-digital and digital-analogue electro-optical converter
01/06/1982EP0042920A2 Method of producing conductors on a substrate
01/06/1982EP0042893A1 Electrochromic display having a stable reference electrode and method of operating same
01/05/1982US4309701 LSI Device including a liquid crystal display drive
01/05/1982US4309699 Passive electro-optical display device