Pulsed laser beam deviation apparatus

Details Pulsed laser beam deviation apparatus Pulsed laser beam deviation apparatus

1981-04-24

1990-11-27

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25023113, H01J 314

Patent

active

049738380

ABSTRACT:
A pulsed laser beam aiming apparatus is configured such that substantially 00% of the energy from a pulsed laser beam from a Q-switched pulsed laser device is accurately aimed at a distant target/obstacle in space. The pulsed laser beam is reflected off of a multifaceted polygonal mirror spinning about its axis and perpendicularly affixed to a rotatable azimuthal table wherein the spinning mirror provides elevational orientation, and, in conjunction with the rotatable azimuthal table, azimuthal orientation. Control circuit and associated equipment cause the Q-switched pulsed laser device to be triggered on when a facet of the mirror is in the proper elevational and azimuthal orientation for the pulsed laser beam to hit the target/obstacle. Correct aiming of the pulsed laser beam at the target/obstacle is accomplished when the coordinates thereof are specific only as an elevational angle .+-.5 above and/or below the horizon and an azimuthal angle between 0.degree. and 360.degree..

REFERENCES:
patent: 4049349 (1977-09-01), Wennerstrom
patent: 4111552 (1978-09-01), Bodlaj
patent: 4205348 (1980-05-01), DeBenedictis et al.

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