Optical receiver/transmitter system employing a common optical a

Optics: measuring and testing – Range or remote distance finding – With photodetection

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350 34, 350275, 356 4, 356 5, G05D 2500, G01C 308, G02B 788

Patent

active

042906709

ABSTRACT:
A system for alternately projecting and receiving electromagnetic radiation through a single optical aperture. A source of radiation emits radiation that is focused onto a rotating gating means which is synchronously timed with said source emissions. The gating means acts to reflect radiation received from a distant target through the optical aperture during the off time of the source towards a radiation detector.

REFERENCES:
patent: 3533707 (1970-10-01), Weiss
patent: 3619058 (1971-11-01), Hewlett et al.
patent: 3752587 (1974-08-01), Myers et al.
patent: 4139769 (1979-02-01), McCrum et al.

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