Autocollimator

Details Autocollimator Autocollimator

1993-07-26

1996-04-30

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

35613903, G01B 1126, G01C 100

Patent

active

055130003

ABSTRACT:
An autocollimator having particular utility in optical aiming systems for the cannons of battle tanks comprises a pair of light sources for directing two beams of light along different paths towards a light reflector mounted, for example, on the muzzle of a tank barrel. The two beams of light are thus reflected along different paths towards a position sensitive light detector suitable for providing an output electrical signal indicative of both the receipt thereon of one or both of the reflected light beams and the position of the light beams on the light detector. The light sources are alternately turned on and off in non-overlapping time periods to provide identification of which of the two beams is being detected by the light detector.

REFERENCES:
patent: 4243877 (1981-01-01), Cruz
patent: 4603976 (1986-08-01), Fetzer et al.
patent: 4618768 (1986-10-01), Weigel

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