Laser telemeter

Details Laser telemeter Laser telemeter

1978-04-28

1980-02-26

Buczinski, S. C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

343 12R, G01C 308

Patent

active

041903625

ABSTRACT:
The beam produced by a pulsed laser is directed onto a target and, once reflected, is heterodyned in a mixer with the light signal from a local oscillator. The resulting reception beat signal is applied to a chronometer to measure the distance from the target. A fraction of the transmitted beam is deviated to the mixer and heterodyned with the signal from the local oscillator to produce a transmission beat signal which is stored and then combined with the reception beat signal.

REFERENCES:
patent: 3619058 (1971-11-01), Hewlett et al.
patent: 3765768 (1973-10-01), Budin et al.
patent: 3900260 (1975-08-01), Wendt

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