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| Patent # | Description |
|---|---|
| US-5,574,601 |
Optical beam expander A beam expander suitable for use with laser machining apparatus comprises a convex paraboloidal surface 7 and a concave paraboloidal surface 8 formed from a... |
| US-5,574,600 |
Light assembly having interconnected housing parts and a lens A light assembly for a track lighting system includes a housing having releasable upper and lower parts. The lower housing part includes a shell and a baffle... |
| US-5,574,599 |
Zoom lens and zooming method A zoom lens comprising, from front to rear, a first lens unit of negative refractive power, a second lens unit of positive refractive power and a third lens unit... |
| US-5,574,598 |
Varifocal lens A varifocal lens whose variable focal length can be controlled by, for example, an electric signal, and suitable for use in bar code readers, etc. A varifocal... |
| US-5,574,597 |
Light scanner and multi-beam generator using the same A multi-beam generator has a grating that is provided on a substrate and which is composed of at least three rectangular patterns of unequal width each having... |
| US-5,574,596 |
Optical circulator The optical circulator according to the present invention comprises two birefringent crystal end-plates, non-reciprocal Faraday rotators inserted between... |
| US-5,574,595 |
Optical isolator A polarization independent optical isolator for use in optical communication systems is provided. This optical isolator functions to provide dual-way optical... |
| US-5,574,594 |
Automated microscope slide marking device An automated microscope slide marking device 10 for making reference marks on the surface of microscope slides 90. The slides 90 are marked by placing a remote... |
| US-5,574,593 |
Liquid crystal display element and laminated retardation film applied
thereto A bright reflective liquid-crystal display element with high contrast which does not require a polarizer is provided together with a laminated retardation film... |
| US-5,574,592 |
Rotatable polygon mirror A rotatable polygon mirror comprising a transparent regular polygonal cylinder having the sides of a regular polygon. The sides are rotationally symmetrical with... |
| US-5,574,591 |
Polygon scanner and production process thereof A polygon scanner has a lighter rotating shaft on which a polygon mirror is mounted, to prevent a positional deviation of the polygon mirror from the rotating... |
| US-5,574,590 |
Optical amplifying transmitting system An optical amplifying transmission system is disclosed in which a large quantity of optical fiber whose zero dispersion wavelength is longer than the wavelength... |
| US-5,574,589 |
Self-amplified networks A self-amplified communication system or network (SANE) is disclosed in which one or more regions of an amplifying medium are optically pumped by some or all... |
| US-5,574,588 |
Phase lock loop circuit using optical correlation detection It is an object of the present invention to provide an optical clock phase lock loop capable of a higher operational speed than the conventional technology by... |
| US-5,574,587 |
Process for increasing the interference suppression A process and a device for increasing interference suppression, especially in optical proximity switches, with an optical transmitter emitting an optical pulse... |
| US-5,574,586 |
Simultaneous optical compression and decompression apparatus A simultaneous optical compression and decompression apparatus having a simple symmetrical arrangement including a plurality of optical splitting/combining units... |
| US-5,574,585 |
Transmission method and apparatus for an infrared remote control system For the transmission of signals triggered by long key depressions from a transmitter to a receiver, repeat signals (R) are transmitted while the key is held... |
| US-5,574,584 |
Wavelength division multiplexing passive optical network with
bi-directional optical spectral slicing A passive optical network is provided that spectrally slices optical signals transmitted in both upstream and downstream directions utilizing wavelength division... |
| US-5,574,583 |
Liquid crystal display device having a compensation layer and method for
fabricating the same A liquid crystal display device including a compensation layer or dummy pattern provided at a region where transparent electrode films formed on upper and lower... |
| US-5,574,582 |
Active matrix liquid crystal display panel with scanning electrodes
acting as capacitor electrode and black matrix A liquid crystal display panel includes a plurality of signal lines Yj (j=1-N: total signal line number N) and a plurality of scanning lines Xi (i=1-M) arranged... |
| US-5,574,581 |
LCD having hydrophobic resin or urethane oligomer columnar spacers or
having orientation film surface tension... A liquid crystal display using a hydrophobic material as the material of resinous columns to orient the molecules of the liquid crystal parallel to the... |
| US-5,574,580 |
LCD with integral light confinement having a pair of afocal lenslets
positioned between liquid crystal cells... Telecentric afocal microlens combinations are inserted between the liquid crystal cells of an active matrix liquid crystal subtractive color display to retain... |
| US-5,574,579 |
Heads-up and heads-down displays employing holographic stereograms 055745798 Heads-up and heads-down displays employing holographic stereograms are provided. The stereograms can be oriented perpendicular to the user's line of... |
| US-5,574,578 |
Method and apparatus for holding a film transparency in a rotary drum
scanner A film transparency (7) is held by centrifugal force with its emulsion side in contact with the inside of the transparent drum (1) of a rotary drum scanner (1,... |
| US-5,574,577 |
Method and apparatus for digitally archiving analog images An apparatus for digitally archiving analog film images includes a support surface on which an analog film image may be supported, and a digitizer that is spaced... |
| US-5,574,576 |
Coherent light driven display device An optical display device to allow a person or a device to physically sense various images. The device includes an image sensor having at least one image input... |
| US-5,574,575 |
Facsimile machine In an image recording apparatus, a feeding mechanism synchronously feeds an original bearing an original image and image receiving medium for receiving an image,... |
| US-5,574,574 |
Method of displaying the same information on a plurality of image
display apparatuses In a method of displaying the same information on a plurality of display apparatuses, a first display apparatus provided with a facsimile reception function is... |
| US-5,574,573 |
Compression method for a standardized image library A technique involving the standardization of the subject matter of an image and the compression of the image using features of the standardization can provide... |
| US-5,574,572 |
Video scaling method and device A linear interpolator and decimating FIR filter with constant coefficients may be used in various configurations to scale a still or moving color video image... |
| US-5,574,571 |
Facsimile machine with diverse communication facilities The facsimile machine comprises a processor (10), means (20) for connection o a telephone line (8), means (20) for connection to a main telephone (7), a ring... |
| US-5,574,570 |
Video signal recording/reproduction apparatus and method for
recording/reproducing two kinds of video signals... When recording HD video signals, twice the number of tracks are used as compared to recording the conventional NTSC video signals, and video signals are recorded... |
| US-5,574,569 |
Image signal transmission apparatus for repeatedly reproducing and
transmitting a main image and a sub-image... The present invention provides an optical disc comprising a main-image signal recording area holding a signal of a main image for a display, and a sub-image... |
| US-5,574,568 |
Video recording and reproducing apparatus In a recording apparatus for video signals, adjacent pixels in input image signals are collected as blocks and subjected to orthogonal transformation. Then, the... |
| US-5,574,567 |
System and method for controlling play of multiple versions of the same
motion picture stored on an optical disk An optical disk containing PG-rated and R-rated versions of the same motion picture. To minimize redundant storage of data, three types of video data blocks are... |
| US-5,574,566 |
Apparatus of digitally recording and reproducing video signals In an apparatus of digitally recording and reproducing video signals, when video signal data in one image frame is divided into a multiple-number of parts... |
| US-5,574,565 |
Data placement on tape for a digital video tape recorder suitable for
high speed picture playback A video tape includes a plurality of parallel slant tracks formed therein. Each track includes a plurality of successively recorded sync blocks. In each sync... |
| US-5,574,564 |
Reading apparatus for reading a record carrier on which coded pictures
have been recorded A read device (320) for reading a record carrier (184) on which coded pictures (4TV, TV, TV/4) have been recorded. The recorded coded pictures represent pictures... |
| US-5,574,563 |
Method and apparatus for forming images at different degrees of
resolution An image processing apparatus connected with an image forming apparatus which forms an image at different degrees of resolution inputs image data from an... |
| US-5,574,562 |
Method and apparatus for evaluation of high temperature superconductors A technique for evaluation of high-T.sub.c superconducting films and single crystals is based on measurement of temperature dependence of differential optical... |
| US-5,574,561 |
Kinematic mounting of optical and optoelectronic elements on silicon
waferboard The present invention relates to a novel, accurate, passive alignment of optical and optoelectronic elements using silicon waferboard technology. The invention... |
| US-5,574,560 |
Dual-beam interferometer with a phase grating An interferometer having a light source that generates a beam of light. The beam of light is directed to a beam splitter where it is split into a reference beam... |
| US-5,574,559 |
Displacement detection apparatus using multiple displacement detection
signals formed by a multiple phase... A displacement detection apparatus has a light source 1, a first diffraction grating G1 for diffracting and dividing the light from the light source and applying... |
| US-5,574,558 |
Optical encoding apparatus for measuring displacement of an object using
diffraction gratings and... An optical encoding apparatus is provided which is not affected by fluctuation of wavelength of a light beam due to temperature change, without sacrificing... |
| US-5,574,557 |
Apparatus and method for performing sub-poissonian interference
measurements using an intensity-squeezed state The invention demonstrates an apparatus and a method for performing sub-Poissonian interference measurements using an interferometer with a beam splitting... |
| US-5,574,556 |
Stage mechanism in exposure apparatus A stage mechanism suitable used in an exposure apparatus is disclosed, wherein heat generation of a coil assembly of a stage driving motor is prevented from... |
| US-5,574,555 |
Lens inspection method and apparatus A lens inspection device has an objective lens composed by front and rear lenses, a two-dimensional image sensor and an image forming lens for forming a point... |
| US-5,574,554 |
Contact lens inspection apparatus and lens mold for use in such apparatus Collimated white light is transmitted through a transparent lens mold having a molded lens resting on a curved surface thereof. A telecentric lens and a camera... |
| US-5,574,553 |
Ladar receiver incorporating an optical amplifier and polarization
optical mixer To greatly increase the sensitivity of a Heterodyne Ladar System, the receiver incorporates an optical preamplifier to amplify the ladar return signal prior to... |
| US-5,574,552 |
Self-calibrating precision timing circuit and method for a laser range
finder A highly precise range measurement instrument is made possible through the use of a novel and efficient precision timing circuit which makes use of the... |
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