Lens focus adjustment means

Details Lens focus adjustment means Lens focus adjustment means

1988-09-19

1990-04-03

Arnold, Bruce Y.

350252, G02B 702

Patent

active

049135279

ABSTRACT:
A lens is mounted on a pair of parallel flexures so that it is rigidly constrained in every degree of freedom except axial movement. To achieve micro adjustments, the flexures are moved by a compound screw having two sections of different pitch to effect movement of the lens at a rate dependent on the pitch difference.

REFERENCES:
patent: 2219037 (1940-10-01), Street
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patent: 3465997 (1969-09-01), Piske
patent: 4030815 (1977-06-01), Andrevski et al.
patent: 4183627 (1980-01-01), Camerik
patent: 4442524 (1984-04-01), Reeder et al.
patent: 4557564 (1985-12-01), van Rosmalen
patent: 4615585 (1986-10-01), Van Sluys et al.

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