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Optical signal free-space conversion board
This is a board to transport and convert optical outgoing free-space signals from a spatial light modulator which comprises: at least one detector to process the ...
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Polyhedral integrated and free space optical interconnection
OF THE INVENTION FIG. 1 shows a prior art communications system using holographic optical elements. A substantially planar plate 100 is optically transmissive. H...
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Component for optical data transmission
The object of the invention is to provide an infrared transceiver having dimensions which are significantly smaller so that material costs and space requirements will be ...
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Image processing apparatus
In printing a plurality of image data, for example, C, M, Y and K data overlaid together, difference in the main scanning magnification index among each other, or ...
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Process and recording media for continuous wave four-level, two-photon holography
We claim: 1. A recording medium for holography, said medium comprising a transparent resin containing from 10.sup.-5 to 0.1 gram/cc of a tetrazine compound. 2. A medium ...
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Process for the preparation of aryldimethyl(3-aryl-propyl)silanes
I claim: 1. A process for the preparation of a compound of the formula I ##STR13## where X is CH.dbd.CH, N.dbd.CH, CH.dbd.N or S, R.sup.1 and R.sup.2 independently of ...
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Optical information storage on a bacteriorhodopsin - containing film
Accordingly, it is an object of the invention to provide an organic medium suitable for the processing and storage of optical information. It is another object of the ...
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Method and system for maintaining and controlling the signal-to-noise ratio of hologams recorded in ferroelectric photorefractive materials
What is claimed is: 1. A hologram with improved diffraction efficiency and readout characteristics, comprising: a ferroelectric photorefractive recording medium having ...
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Asymmetrical dyes with large two-photon absorption cross-sections
We claim: 1. A two-photon absorbing chromophore of the formula D--Ar--A wherein Ar is selected from the group consisting of ##STR7## D is selected from the group ...
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Two-photon upconverting dyes and applications
The present invention relates to a composition which includes a matrix material and a styryl compound dispersed therein. The styryl compound has the formula: ##STR1## ...
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