Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1993-03-11
1994-06-07
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
359181, H01J 4014
Patent
active
053191900
ABSTRACT:
A method of providing near simultaneous night vision and communication including directing a narrow voice modulated IR laser beam at a distant receiver/demodulator during communication periods, causing the IR laser beam to diverge substantially during scene viewing periods, other than the data communication periods, for illuminating a darkened scene which includes the laser beam receiver, and viewing the darkened scene with an IR viewing device.
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patent: 4689827 (1987-08-01), Gurney, Jr.
patent: 4709416 (1987-11-01), Patterson
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patent: 4864649 (1989-09-01), Tajima et al.
patent: 4912526 (1990-03-01), Iwaoka et al.
patent: 4959827 (1990-09-01), Grotzinger et al.
Allen Michael S.
Gaddis Mark W.
Keipert Andreas G.
Nathans Robert L.
Nelms David C.
Shami K.
The United States of America as represented by the Secretary of
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