Laser scanning system

Details Laser scanning system Laser scanning system

1975-08-04

1982-01-19

Buczinski, S. C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

250236, 350 64, 356 5, G01B 1126, G02B 2717

Patent

active

043113842

ABSTRACT:
A scanning laser doppler system in which the change in angle between transmitted and received beams caused by the finite transit time to the target is automatically compensated. The scanning beam is produced as a downward looking Palmer scan pattern by an expanded laser beam transmitted through a rotating wedge. The rotating wedge is tilted in accordance with the invention to align the received beam with a portion of the transmitted beam upon a detector.

REFERENCES:
patent: 3134902 (1964-05-01), Chase et al.
patent: 3504979 (1970-04-01), Stephany
patent: 3523730 (1970-08-01), Hayek et al.
patent: 3527533 (1970-09-01), Hook et al.
patent: 3573463 (1971-04-01), Goodwin
patent: 3684375 (1972-08-01), Granquist
patent: 3765768 (1973-10-01), Budin et al.
patent: 3788748 (1974-01-01), Knight et al.
patent: 3856402 (1974-12-01), Low et al.

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