Laser telemeter

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

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Details

356 4, G01C 308

Patent

active

041970063

ABSTRACT:
The telemeter e.g. for tanks or aeroplanes, includes in particular a diaphragm disposed in the optical receiving system, the diaphragm is provided with closing means which operate outside the period during which a measuring echo is expected so as to protect the receiver of the telemeter against any interference light pulse (except during said measuring period). This reduces the risks of serious damage to the receiver from counter-measure laser pulses.

REFERENCES:
patent: 3834795 (1974-09-01), Erickson et al.
patent: 3900260 (1975-08-01), Wendt
patent: 3900261 (1975-08-01), Wingate
patent: 3942890 (1976-03-01), Malone
patent: 3951549 (1976-04-01), Fowler et al.

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