Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1978-03-06
1980-06-24
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
H01J 3150
Patent
active
042096910
ABSTRACT:
A night vision system for use in an environment having at least one observer using artificial light means (lamp lit instruments, torch, etc.) and at least one observer using a light intensifying direct vision device has a power supply which supplies pulses of power to the artificial light device and which switches off the light intensifying direct vision device in synchronism with the pulses.
REFERENCES:
patent: 3733492 (1973-05-01), Hagar
patent: 3803407 (1974-04-01), Anderson
patent: 3902803 (1975-09-01), Lego, Jr.
patent: 3947119 (1976-03-01), Bamberg et al.
Nelms David C.
The Secretary of State for Defence in Her Britannic Majesty's Go
Westin Edward P.
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