EP0153147A2
Expired / Lapsed
EP
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Coherent light optical processor
Assignee: International Standard Electric Corp
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Filing: 1985-02-14
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Granted: —
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Expires: 2005-02-14
Abstract
Abstract A coherent light optical processor employs a matrix addressed smectic liquid crystal display device (14) as a matched filter in the spatial frequency or Fourier transform plane of the correlator.
Inventors
- 👤 William Alden Crossland
- 👤 Robert Walter Alister Scarr
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 17:58
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/1313; G02B; G02B27/00; G02B27/42; G02B27/46; G06; G06V; G06V10/00; G06V10/88
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
40 words
A coherent light optical processor including a coherent light image generator (10) with an optical imaging system (11, 12) that incorporates in a Fourier transform plane (14) of that system a transmission type smectic liquid crystal display device exhibiting storage.
Claim 2
Dependent Claim
40 words
A coherent light optical processor including a coherent light image generator (10) with an optical imaging system (11, 12) that incorporates in a Fourier transform plane (14) of that system a transmission type smectic liquid crystal display device exhibiting storage.
Claim 3
Dependent Claim
18 words
A coherent light optical processor as claimed in claim 1, wherein the smectic display device is matrix addressed.
Claim 4
Dependent Claim
16 words
A surveillance system incorporating a coherent light optical processor as claimed in claim 1 or 2.
Claim 5
Dependent Claim
17 words
A character recognition system incorporating a coherent light optical processor as claimed in claim 1 or 2.
References Cited (Backward Citations)
No citation records indexed.
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