Method and device for measuring distance optically

Details Method and device for measuring distance optically Method and device for measuring distance optically

1987-07-14

1989-11-21

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

250203R, 356152, G01C 308

Patent

active

048818097

ABSTRACT:
For optical measurement of a distance between a hunter and a target, for instance between satellites, back-reflecting means are provided on the target. The hunter carries a source of substantially monochromatic light pulses and a solid state detector having a matrix of sensors. The matrix is read-out by transferring the contents of the sensors line per line or point per point at a predetermined frequency to an output memory. A time base triggers one pulse at a predetermined time selected for causing return of an echo from the target during read-out. The distance is derived from a determination of that line or that point which receives the echo, for two different transfer frequencies.

REFERENCES:
patent: 4355895 (1982-10-01), Cairns et al.
patent: 4710028 (1987-12-01), Grenier et al.
patent: 4728795 (1988-03-01), Cross
patent: 4730920 (1988-03-01), Schlemmer et al.

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