Mirror orienting device for a laser levelling instrument

Details Mirror orienting device for a laser levelling instrument Mirror orienting device for a laser levelling instrument

1976-12-30

1978-05-23

Corbin, John K.

Optics: measuring and testing

Range or remote distance finding

With photodetection

350 25, 350255, 356172, G02B 2500

Patent

active

040907813

ABSTRACT:
A mirror-orienting device for a laser levelling instrument utilizes an optical deflection system, a mirror which rotates about a fixed axis in the same plane as the mirror, a mirror lever fixed to the mirror at one end, a component for fine adjustment of rotation of the mirror, combined with a linear measurement indicator, which includes a measuring contact that moves axially. This allows the mirror to be oriented accurately, in relation to a reference direction, for example a horizontal or a vertical direction.

REFERENCES:
patent: 3531206 (1970-09-01), Bjerhammer
patent: 3892475 (1975-07-01), Bardocz
patent: 3997267 (1976-12-01), Met
patent: 3998554 (1976-12-01), Burch et al.

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