Variable optical transmitter

Details Variable optical transmitter Variable optical transmitter

1978-02-27

1980-07-29

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

356247, G01J 120

Patent

active

042152704

ABSTRACT:
A variable optical transmitter includes a light emitting element which prcts a very compact beam of light. The transmitter is constructed to be adjustable so that the light beam may be transmitted at any desired azimuth angle around a vertical axis. By directing the light beam vertically toward a fixed reflector, projection of the beam in any desired horizontal direction may be achieved by a very slight deflection of the beam source from the vertical. The apparatus may also include a receiving portion which will detect the direction of receipt of an incoming light beam. The device may thus be used to transmit a light beam precisely in the direction from which a signal was received.

REFERENCES:
patent: 3961179 (1976-06-01), Kuffer
patent: 4107530 (1978-08-01), Brumfield et al.
patent: 4111564 (1978-09-01), Trice

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