Patents

Searching:





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-5,689,372 Integral imaging with anti-halation
A method of exposing an integral imaging element having: an integral lens sheet with opposed front and back surfaces; and a light sensitive layer positioned...
US-5,689,371 Filter assembly
An optical filter assembly for use on a visual display device is disclosed. Included in the assembly is a frame defining a viewing aperture which frame is...
US-5,689,370 Image/information displays on electro-optic devices
An improved electro-optic rearview mirror for motor vehicles, the mirror incorporating an improved display, such as "HEATED" or "OBJECTS IN MIRROR ARE CLOSER...
US-5,689,369 Angular deviation detection apparatus
There is provided an angular deviation state detection apparatus which detects the deviation state of a movable portion which can deviate, and has a detection...
US-5,689,368 Apparatus for scanning drum inner face and method of scanning therefor
The present invention allows image recording with plural light beams while eliminating alignment changes of light spots on the inner face of a drum. A light beam...
US-5,689,367 Polarization beam splitter
An improved polarization beam splitter formed by a collimator and two similarly shaped, birefringent crystal prisms is provided. The light from the collimator is...
US-5,689,366 Coarse and fine adjustment focusing apparatus for a microscope
A coarse and fine adjustment focusing apparatus secured to a microscope body for moving a movable member includes a sun gear secured to a fine adjustment knob...
US-5,689,365 Stereoscopic-vision endoscope
A stereoscopic-vision endoscope having an objective optical system consisting of a front optical system having a single optical axis including a field conversion...
US-5,689,364 Light reflectant surface for photoinduction chambers
Improved material and method for reflecting light in a photoinduction chamber is provided. The material comprises one or more layers of expanded ...
US-5,689,363 Long-pulse-width narrow-bandwidth solid state laser
A long pulse laser system emits 500-1000 ns quasi-rectangular pulses at 527 nm with near diffraction-limited divergence and near transform-limited bandwidth. The...
US-5,689,362 Acousto-optic deflector device
An acousto-optic deflector device having a piezoelectric thin film and IDT formed on a substrate for deflecting a light by causing an SAW generated at an SAW...
US-5,689,361 Apparatus and method for femtosecond pulse compression based on selective attenuation of a portion of an input...
An apparatus for, and method of, decreasing a temporal duration of an optical input pulse having an input power spectrum associated therewith, the apparatus and...
US-5,689,360 Polarization independent optical isolator
A polarization independent optical isolator for transmitting a signal ray in a forward direction and suppressing backward transmission comprises: a first and...
US-5,689,359 Polarization independent optical isolator
A polarization independent optical isolator for transmitting a signal ray in a forward direction and suppressing backward transmission comprises: a first and...
US-5,689,358 Optical functional devices and integrated optical devices having a ridged multi-quantum well structure
An optical functional device includes a semiconductor substrate, an optical functional layer provided on said semiconductor substrate and selected from the group...
US-5,689,357 Nonlinear optical element for extremely high bit rates
The nonlinear optical element for extremely high bit rates comprises a plate made of semiconductor material, in which is there is realized a sequence of...
US-5,689,356 System and method for minimizing nonlinear distortion in optical communication systems employing laser...
An amplitude limiting circuit is utilized to select the most favorable linear region of the light vs. current characteristic curve (for directly modulated...
US-5,689,355 Repeater using optical cables for radio paging system
A repeater which is installed as measures for silent zones, which automatically compensates for a variation in a light loss caused by a difference in length...
US-5,689,354 Optical space communication apparatus
An optical space communication apparatus includes a light-emitting device for emitting an elliptic light beam, and a light-projecting optical system for...
US-5,689,353 Remote control with two-way data coupling
A remote control for use in connection with a consumer electronics device and a computer. The remote control comprises a central processing unit, a set of...
US-5,689,352 Liquid crystal display device and process for producing same
A plurality of conductive lines are formed on a lower base plate. One surface of the lower base plate is divided into a first portion which is to be formed into...
US-5,689,351 Holographic memory readout with reduced speckle
A method and apparatus are provided for reducing speckle noise in images read out from holographic memories. An image recorded in the memory is read out using a...
US-5,689,350 Color printer calibration method for accurately rendering selected colors
A color printer calibration method for improving printer accuracy for particular colors provides a look up table with a plurality of nodes useful as table...
US-5,689,349 Method and a device for generating printing data in a color space defined for non-standard printing inks
A method and a device for generating printing data wherein a first color separation defined in a first device dependent color space of standard printing inks is...
US-5,689,348 Book document reading device
An image reading device capable of preventing, by increasing the quantity of light at the center or bound portion of a spread book document, the quantity of...
US-5,689,347 Signal processing apparatus
There is disclosed an image reading apparatus constructed by two line sensors, a reading circuit for reading out outputs of the two line sensors through...
US-5,689,346 Image data processing system
An Adaptive Discrete Cosine Transformation is widely used for orthogonally transforming image data. The number of adders necessary for sum-of-product operations...
US-5,689,345 Apparatus for testing amplifier for electromechanical gravure engraving machine
A test apparatus for generating switch tests, step tests, or digital ramp test signals to be input to an engraving amplifier for off-line testing includes a...
US-5,689,344 Mitigation of tenting deletions in color xerographic printers
A printing system that uses a halftone processor is driven to halftone selected areas of an image based on a selected halftone dot, wherein the halftone dot has...
US-5,689,343 Area mapping employing reference clusters for high quality noninteger resolution conversion with enhancement
A method and apparatus for converting the resolution of an input image to a higher resolution that is a noninteger multiple of the input resolution. The method...
US-5,689,342 Image processing method and apparatus which orders text areas which have been extracted from an image
An apparatus and method for automatically determining the order of reading a plurality of text areas, when an original constituted of the plurality of text areas...
US-5,689,341 LCD panel test system
A LCD test system is able to adjust the differences in focal point lengths caused by chromatic aberration without increasing the size of the camera system and...
US-5,689,340 Apparatus and method for measuring alignment in lenticular media
An apparatus (10) for measuring the location of lenticules (24) in lenticular media (14) having an encoded portion (14) located adjacent to the lenticules (24)...
US-5,689,339 Alignment apparatus
In an alignment apparatus for aligning a mask and a photosensitive substrate (a semiconductor wafer or glass plate applied with a photoresist), and which is...
US-5,689,337 Coaxial disc-mount for measuring flatness of computer-drive discs by interferometry
An interferometer mounting mechanism that consists of a horizontal shaft rigidly connected to the interferometer in axial alignment with the optical path of the...
US-5,689,336 Photoelectric position measuring system
A scanning grating is provided in a photoelectric position measuring system which has three areas per graduation period (d) arranged behind each other in the...
US-5,689,335 Apparatus and method for heterodyne-generated two-dimensional detector array using a single element detector
Apparatus and method for heterodyne-generated, two-dimensional detector array using a single detector. Synthetic-array heterodyne detection, permits a...
US-5,689,334 Intracavity laser spectroscope for high sensitivity detection of contaminants
Contaminants are detected optically at concentrations below 1 part-per-million (ppm) and extending to a level approaching 1 part-per-trillion (ppt) by using...
US-5,689,333 Spectroscopic apparatus and methods
A sample placed under a microscope is illuminated by light from a laser beam. Raman scattered light is passed back via a dichroic filter to various optical...
US-5,689,332 Automated real-time detection of defects during machining of ceramics
Apparatus for the automated real-time detection and classification of defects during the machining of ceramic components employs an elastic optical scattering...
US-5,689,331 Laser apparatus with wander correction
A laser apparatus includes a laser for emitting a laser beam which is reflected from a primary mirror through a primary lens in a primary optical path and...
US-5,689,330 Laser plane generator having self-calibrating levelling system
A self-levelling laser generator apparatus (10) includes a housing (12), a light source in the housing which produces a beam of collimated light, and a...
US-5,689,329 Flying height altitude simulator
A flying height tester that can vary an air pressure and measure an air bearing height between a slider and a substrate. The substrate is located within a...
US-5,689,328 Optical type range finder apparatus for motor vehicle
An optical type range finder apparatus for a motor vehicle. Dew condensation and deposition on an inner surface of an irradiation laser beam projecting window is...
US-5,689,327 Laser processing device
A laser processing device for collecting a laser beam from laser beam radiating means using an objective lens and irradiating a surface of a sample with the...
US-5,689,326 Photographic printing apparatus
A photographic printing apparatus includes an exposing device (5) for printing an image of a photographic film (2) on printing paper (3), a supplementary...
US-5,689,325 Ophthalmologic apparatus with ease of operation
A measuring unit is mounted on a movable stage, which is movable in the right-left and front-rear directions relative to a fixed base stage. When an examiner...
US-5,689,324 Progressive lens
A progressive lens mold, a method of making a progressive lens mold, and progressive lenses made using such mold or method. Back faces of progressive molds are...
US-5,689,323 Decentered noncorrective lens for eyewear
Disclosed is an optically corrected lens for nonprescription, dual lens eyeglasses. In a preferred embodiment, the anterior surface of the lens lies on a portion...
US-5,689,322 Liquid crystal display device having regions with different twist angles
A liquid crystal display device which includes a pair of substrates; a liquid crystal layer sandwiched between the pair of substrates; and an electrode for...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | Next →