Boots – shoes – and leggings
Patent
1989-04-07
1990-07-17
Arnold, Bruce Y.
Boots, shoes, and leggings
350 373, 350 377, 350 382, 35016212, 364822, 382 31, 382 42, G02B 2746, G02B 532
Patent
active
049417339
ABSTRACT:
A polychromatic optical correlator system, comprising one or more devices to generate simultaneously a plurality of signal beams at a plurality of wavelengths, a beam recombiner to direct the signal beams along an axis to form a multicomponent, multiwavelength beam comprised of those signal beams, at least one view exposed to the signal beams to spatially modulate each of the signal beams, and a matched filter plate having a plurality of matched filters stored therein. A multiple beam generating holographic lens is located in the path of the multicomponent, multiwavelength beam to deflect each of the component signal beams thereof onto the matched filter plate, with each of the signal beams being focused on a respective one of the matched filters of the matched filter plate. Optical detection is located in the paths of output beams of the matched filter plate, to produce a signal when the correlation between the pattern of one of the signal beams focused on the matched filter plate and the matched filter on which that one beam is focused, rises above a predetermined value.
REFERENCES:
patent: 3398269 (1968-08-01), Williams
patent: 4250465 (1981-02-01), Leib
patent: 4447111 (1984-05-01), Leib
patent: 4588260 (1986-05-01), Horner
"Investigation of Large Capacity Optical Memories for Correlator Applications"-Kenneth G. Leib & Jay Mendelsohn (Technical Report) 1981.
"Color Image Recognition by Spectral-Spatial Matched Filtering"-F.T.S.YU, Optical Engineering, Nov.-Dec. 1984, vol. 23, No. 6, pp. 690-694.
"Baseline Test of a Matched Filter Correlator for Screening Aerial Reconnaissance Film"-Leib, Wohlers, Herold-May 1977 (Grummon Research Report).
Arnold Bruce Y.
Grumman Aerospace Corporation
Ryan Jay
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