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4094575 |
Holographic article and process for making same
A holographic article preferably including a plurality of superimposed and/or spatially adjacent linear gratings, each of which has a spatial frequency different from that of the other gratings....
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4047200 |
Single tube color television camera with color strip filters
A single tube color television camera employs a camera tube and two color strip filters located one behind the other in the optical image axis. The strip filters may either be installed in the...
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4023010 |
Optical identification system and reader for reading optical gratings on a record medium
An optical identification system including a reader for reading superimposed optical gratings on a record medium in which the reader has a grating plane and a radiant energy source for directing...
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4018958 |
High-frequency raster with irregular structure of raster elements
What is proposed is a high-frequency raster with an irregular structure of raster elements. This raster is a plane-parallel glass plate with transparent roughnesses on its surface characterized by...
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3997243 |
Color image reproduction system
A color image reproduction system wherein there are recorded in superimposition on an imaging member a plurality of images respectively corresponding to the color content of different colors of an...
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3980389 |
Electro-optical deflection apparatus using holographic grating
An apparatus for deflecting beams of radiated energy, for example, laser beams, includes a primary deflector capable of deviating the incident beams into a plurality of directions, e.g., under the...
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3940788 |
Color television camera optical system
An optical system in a single or double tube color television camera for minimizing color shading, moire patterns and color beats includes along the image optical axis a phase grating low pass...
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3912363 |
Optical fiber to planar waveguide coupler
Optical coupling between a fibre-optic waveguide and a planar optic waveguide is achieved by providing techniques for phase matching intercoupled evanescent fields of light wave energy traveling...
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3872575 |
Optical transducer scale
An optical grating which has a preselected coefficient of thermal expansion can be made by attaching grating bars to a slotted plate having the desired coefficient of thermal expansion in a...
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3871064 |
Moire fringe pattern with thermal matching to aluminum or other materials
A method for manufacturing an optical grating which has a preselected coefficient of thermal expansion. The method comprises steps for easily and accurately affixing grating bars spanning a slot in...
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3863063 |
OPTICAL COMMUNICATIONS SYSTEMS
The material or wavelength dispersion limit on bandwidth in an optical communications system, perhaps utilizing a glass transmission line, is minimized by pulse sharpening. Sharpening is...
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3860955 |
COLOR IMAGE PICKUP DEVICE
A color image pickup device comprises a lenticular lens disposed in front of and between the image forming screen of a pickup tube and an object to be televised. A color-resolving stripe filter is...
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3842202 |
COMBINATION OF A TRANSMISSIVE DIFFRACTIVE PHASE-GRATING AND A TELEVISION PICTURE-TUBE IN OPERATIVE JUXTAPOSITION TO EACH OTHER
The combination of a phase-grating and a television picture-tube, in which the phase-grating is operatively juxtaposed to the face of the picture-tube, with the lines or rows of high and low areas...
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3814498 |
INTEGRATED OPTICAL CIRCUIT DEVICES EMPLOYING OPTICAL GRATINGS
There are disclosed a variety of new integrated devices for use at optical frequencies. Each of the devices comprises a body, either in the form of a cladded fiber or a thin-film dielectric...
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3791737 |
SPECTROMETER IN WHICH A DESIRED NUMBER OF SPECTRAL LINES ARE FOCUSED AT ONE FIXED OUTPUT SLIT
A spectrometer where spectral lines within a wide wavelength range with a high resolution can be focused at one fixed output slit by using a diffraction grating which consists of separate areas...
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3757033 |
SHADOWING SYSTEM FOR COLOR ENCODING CAMERA
In a color encoding camera utilizing a color encoding strip filter arrangement in the optical path to separate light from an object into its component colors, a shadowing grating arrangement is...
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3728014 |
APPARATUS FOR PROJECTING A SCENE
A system and apparatus for projecting scenes upon color additive film. This film is typically configured having a filter screen portion overlaying an image carrying base. The filter screen may be...
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3696202 |
OPTICAL SYSTEM FOR A COLOR TELEVISION CAMERA
A color television camera, comprising a taking lens, an image tube having a photoelectric surface, a monochrome stripe filter positioned at the focal point of said taking lens, a relay lens to form...
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3688109 |
X-RAY DIFFRACTION GRATING CRYSTALS
The use of structurally layered heavy metal chalcogenides as diffraction grating crystals in X-ray optical assemblies such as X-ray fluorescence spectroscopy, the chalcogen being selected from...
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3659914 |
HOLOGRAPHIC SYSTEM WITHOUT LASER SPECKLE
A holographic system particularly for holographic interferometry which minimizes the effect of laser speckle yet permits viewing of the holographic image over a wide angular range at discrete...
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3650595 |
REDUNDANT, SPECKLE-FREE HOLOGRAM RECORDING APPARATUS
There is disclosed the use of a phase diffraction, rather than a plate of diffusing glass, for introducing redundancy into the information beam which is employed together with a reference beam in...
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3650594 |
METHOD AND APPARATUS FOR INCREASING THE INFORMATION TRANSMITTING CAPABILITIES OF IMAGE FORMING SYSTEMS
A process for increasing the transmitting information possibilities in connection with image-mapping systems, in which the information is transmitted from the object space to the image space by...
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3636367 |
FOURIER TRANSFORM OPTICAL OBJECT ANALYZER
Fourier transform optical object analyzer comprising a plane support for an optical object to be analyzed, a mask formed with a slit registering with a line of the optical object and movable in a...
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3635545 |
MULTIPLE BEAM GENERATION
Method and apparatus for generating a plurality of separate and distinct signal beams of mutually coherent radiation. The signal beams, which are of substantially equal intensity, are produced as...
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3582984 |
COLOR VIDEO SIGNAL GENERATING APPARATUS
In a color video signal generating apparatus in which an objective lens projects an image of an object to be reproduced onto the photoconductive layer of a vidicon tube, color filters having...
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3578845 |
HOLOGRAPHIC FOCUSING DIFFRACTION GRATINGS FOR SPECTROSCOPES AND METHOD OF MAKING SAME
A method making a focusing diffraction grating including casting a diverging beam of coherent light on a photographic plate, casting a convergent beam of coherent light on the same plate so that...
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3566018 |
COLOR TELEVISION SIGNAL GENERATING SYSTEM
Light from a colored subject is projected onto the photosensitive electrode of a camera tube through a spatial color encoding filter grating including strips of subtractive color material equally...
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3566017 |
TELEVISION COLOR DIFFERENCE SIGNAL ENCODING SYSTEM
Each of the (B-Y) and (R-Y) sideband signals of two suppressed color carrier waves derived from a camera tube having a spatial color difference signal encoding filter is envelope detected and...
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3566016 |
COLOR TELEVISION CAMERA ENCODING SYSTEM
A camera tube has two different color signal filter gratings, each with alternate color and neutral density parallel strips, and a reference signal grating of alternate transparent and neutral...
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3493959 |
INTERFEROMETRIC SHAFT ANGLE ENCODER HAVING NATURAL BINARY READOUT
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3484153 |
TRANSPARENT EUTECTICS WITH LAMELLAR MICROSTRUCTURES AND METHOD OF MAKING SAME
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3453640 |
DIFFRACTION GRATING RECORDING
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3104586 |
Image interpolator for motion picture films and the like
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3078338 |
Orthogonal diffraction gratings for color reproduction
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3045531 |
Optical grating
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2696520 |
Color television camera system
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2182993 |
Prismatic screen
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RE20748 |
Title is not available
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3821795 |
Title is not available
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3728117 |
Title is not available
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3702725 |
Title is not available
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3674335 |
Title is not available
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3588325 |
Title is not available
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3585121 |
Title is not available
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