Matches 101 - 150 out of 275 < 1 2 3 4 5 6 >
Match Document Document Title
5657100 Optical transmittance adjusting device having a matrix of electrodes each connected to a photoconductor smaller than the electrode  
An optical transmittance adjusting device which includes an optical transmittance adjusting plane divided into a plurality of areas; and adjusting means for detecting an amount of light incident on...
5598053 LCD-CRT hybrid image tube  
An LCD projection system, located within a standard color CRT, is used to oject toward the screen decay stimulation patterns that vary dynamically from one frame to the next for each pixel based on...
5586205 Apparatus for selecting waveguide modes in optical fiber and the method of manufacturing the same  
An apparatus for selecting waveguide modes in optical fibers is disclosed, which comprises an optical fiber having of a core and a cladding sheathing the core. The optical fiber has a selected...
5553299 Programming/reprogramming a point to point communication apparatus  
A point to point communication apparatus, such as a digital radiopager (RP), having a non-volatile electrically programmable store which stores a radio identification code (RIC) or apparatus...
5532952 Selectively alterable optical data memory  
A selectively alterable optical data memory (10) has a liquid crystal display (12) with a nematic medium (22), which consists of a nematic phase and a solid dispersed in it, a first voltage source...
5528391 Infrared beam steering system using diffused infrared light and liquid crystal apertures  
A system for scanning a room to find the location of target devices, and then locking onto them with stationary directed beams for two-way communication. In one embodiment, a base system in each...
5459591 Electromagnetic energy beam steering devices  
The present invention relates to beam steering and scanning devices which utilize an imaging cell which incorporates a solid-state cholesteric liquid crystal (CLC) element, an electronically...
5459594 Apparatus for inspecting on-off states of a scattering-type liquid crystal display panel  
An apparatus for ON-OFF inspection on a scattering-type liquid crystal display panel is provided which is of decreased size and is capable of easily inspecting the ON-OFF states of the liquid...
5451980 Liquid crystal flat panel color display with surface plasmon scattering  
A flat panel color display is provided in which white collimated light incident on a light coupling means having a metal layer and a liquid crystal layer formed on a surface of the coupling means...
5434406 Hemispheric matrixsized imaging optical system  
An optical seeker (10) has an objective lens group (12) with a wide field of view (e.g., up to about 180 degrees). Light energy from objects within a field of regard is focused by the objective...
5422663 Image formation and erasure on and from scattering-mode light-modulation device  
An image formation apparatus using a recording medium including a scattering-mode light-modulation member which takes an opaque state in response to a heat and takes a transparent state in response...
5416620 Pockels cell with AC driving voltage at frequency of periodic variation of writing light source  
Disclosed is a picture information memory device, including a picture information memory means for generating electric charges corresponding to the intensity of write-in light incident thereon, and...
5416618 Full complex modulation using two one-parameter spatial light modulators  
Full complex spatial light modulation is enabled by an optically additive combination of the actions of separate and independent spatial light modulators, even though the independent modulators can...
5416757 Optical disk drive system for use with disks having different protection layer depths  
The objective lens of an optical disk drive has a suitable positioning and numerical aperture so that the light beam will be focused into a spot on the optical media of a first optical disk having...
5416617 Image projection display screen employing polymer dispersed liquid crystal layer and electrochromic layer  
A diffusing display screen resulting from the combination of a cell comprising a polymer dispersed liquid crystal material which can be made diffusing, and of a cell comprising an electrochromic...
5412492 Electro-optical lens assembly  
A liquid crystal lens assembly that can be used to replace existing color lenses in traffic signals without the need for any special modifications to the traffic signal. The lens assembly utilizes...
5408359 Visual security eyecup  
A self contained protective shutter assembly for an imager eye piece inclng an eyecup, a powered shutter, switch, power supply and interface coupling.
5403039 Tamper-resistant article and method of authenticating the same  
A printed document, such as a lottery ticket, includes a thermochromic layer at least over the imprinted data region. The printed document can be authenticated by applying heat to the thermochromic...
5400161 Optical system including focus-defocus focal plane array compensation technique using liquid crystal phased array  
An optical system is described including an array of photodetectors, each photodetector having a surface, and a focusing system employing a liquid crystal phased array for focusing a beam of...
5387991 Polarization converting device and polarized-light illuminating system using the device and image display unit using the device  
A polarization converting device for converting a light from a light source into a polarized light comprises a first prism having a first slant plane for receiving the light from the light source...
5377036 Suppression of stray light reflections in a raster output scanner (ROS) using an overfilled polygon design  
In an overfilled ROS polygon architecture, stray reflection from facets adjacent the completely filled (illuminated) facet are neutralized by placing an optical isolator in the path of the unwanted...
5357355 Double sided thin panel display unit for displaying the same image  
A double sided panel display unit produces visual images on both side thereof, and comprises a luminescent panel display with a transparent substrate, a liquid crystal shutter sandwiched between...
5337078 Apparatus and method for recording information carried by electro-magnetic radiation beam  
An apparatus for recording information carried by an electro-magnetic radiation beam. The apparatus has a recording unit having two electrodes, a photoconductive member and a recording member of...
5321539 Liquid crystal Fabry-Perot etalon with glass spacer  
A tunable wavelength-selective filter includes a glass substrate, a transparent electrode layer, a highly reflective mirror, an alignment layer, a liquid crystal layer, another alignment layer, a...
5319481 Encapsulated liquid crystal optical read/write storage medium and system  
An optical read/write information storage system (2), includes a liquid crystal information storage medium (1) for storing information written thereto and being capable of being read, including...
5299037 Diffraction grating type liquid crystal display device in viewfinder  
There is provided a display device in a viewfinder, including a diffraction grating whose shape is determined at an interface between first and second materials, at least one of the first and...
5258860 Optical phase adder  
A photosensitive element 46 absorbs at least a portion of an incident write beam 40, causing a spatially varying electric field to be applied across a layer of a ferroelectric liquid crystal (FLC)...
5258705 Active matrix substrate inspecting device  
A device and method for inspecting any fault in an active matrix substrate which includes a transparent conductive film on the substrate, an orientation film on the transparent conductive film, a...
5253033 Laser radar system with phased-array beam steerer  
An optical beam steering device for use in a single-aperture laser transceiver system provides deflection of the transmitted and received beams in two planes, while maintaining the distinctive...
5225920 Liquid crystal modulator including a diffuser with plural phase shifting regions  
Light emitted from a coherent light source undergoes fine adjustment of its polarizing direction by a polarizing device and is directed to a liquid crystal device through a collimating optical...
5216411 Cover for an indicator panel with transparent touchpad and display  
A cover for an indicator panel of an electronic apparatus which is mounted on a recess formed on the indicator panel and pivotably movable so as to cover the indicator panel in a closed state,...
5196925 Compensating structure for position errors in apparatus for recording and reproducing charge latent image  
A charge latent image is formed on a recording medium in response to information and a reference pattern so that the information and the reference pattern are recorded on the recording medium....
5194972 Microwave phase modulation with liquid crystals  
A liquid crystal is used as the phase modulating medium in a microwave phase modulating cell (20). Applied electric and/or magnetic fields transverse to the direction of wave propagation create a...
5175637 Displays having improved contrast  
A display presenting an image having enhanced contrast has a screen which switches between a bright, image-presenting state and a dark, image-less state, to minimize glare from ambient light...
5168384 Miniature liquid crystal display device  
A miniature liquid crystal display panel device comprises a plurality of column and row terminals. On a squarish frame holder is formed an opening for a light passage in the middle of an enclosing...
5161007 Recording head with carrier generation and transport layers adjacent a photo-modulation layer for recording information included in an electro-magnetic radiation-beam applied thereto  
A recording apparatus comprises first electrode, color-separation filter, recording, carrier generation, carrier transport, and second electrode layers which are laminated in order of mention. The...
5159474 Transform optical processing system  
The Fourier transform optical processing system of the present invention includes generating an electrical signal in response to a first image and modulating a beam of coherent light with means...
5153760 Oscillating photovoltaic optical shutter for reflective display  
An optical shutter operated device includes a reflector to reflect incident light and a liquid crystal light shutter interposed in front of the reflector. A photovoltaic cell is disposed behind the...
5151781 Method of recording color image information  
Color image information is recorded on a recording medium. The recording medium includes a color stripe filter having different-color filter stripes. Marks are provided on the recording medium in...
5151802 Device for forming images on a large surface and simulator equipped with such a device  
A simulator comprises a dome on which are formed synthesized large-field images, the image-forming surface of the dome being "active", i.e., it is not used as a projection screen, but the images...
5150257 High reliability, low intensity back lit SR and NVGC indicator assembly  
An electronic light valve is disposed over a color fill lens formed in an opaque indicia plate and an infrared filter to be energized to a transmissive condition simultaneously with a low intensity...
5150234 Imaging apparatus having electrooptic devices comprising a variable focal length lens  
An imaging apparatus is provided with a negative lens, a variable focussing lens unit including a material with an electrooptic effect, a light blocking unit, including the material with the...
5144415 Apparatus for processing information carried by electro-magnetic radiation beam  
An apparatus for processing information carried by an electro-magnetic radiation beam. The apparatus includes a charge holding member for storing a charge latent image, a generator for generating...
5144471 Optical scanning system for scanning object with light beam and displaying apparatus  
An electromagnetic radiation beam scanning system for scanning an object with an electromagnetic radiation beam. The scanning system comprises first and second beam-narrowing devices which are...
5134505 Push-button switch with liquid-crystal display  
The present invention provides a switch in which a liquid-crystal panel is arranged on the top side of a push-button so that such information as characters, symbols and figures is capable of being...
5132817 Display having a printing function  
A display includes a matrix display panel having a first common line and a first data line intersecting to form a picture element for displaying data, with the first common line and the first data...
5132824 Liquid-crystal modulator array  
A liquid-crystal phase modulator array, comprising a planar electrode on one glass support and an array of finger electrodes on the other glass support with a nematic liquid filling the gap between...
5132811 Holographic operating optical apparatus  
A holographic apparatus has an inferometer for concurrently irradiating an image recording medium by a writing reference light of spherical or plane wave form and a signal light containing image...
5123192 Colorful advertising device with real article display  
A show window includes a liquid crystal display plate which is alternatingly caused to become transparent in order to permit viewing of a static object displayed behind the window, and translucent...
5121239 Filter having adjustable spectral transmittance function  
An optical filter having a variable spectral transmittance function of selectable shape is described which includes a spectrum forming element for dispersing a light beam into a characteristic...
Matches 101 - 150 out of 275 < 1 2 3 4 5 6 >