Apparatus for adjusting the optical axis of an optical system

Details Apparatus for adjusting the optical axis of an optical system Apparatus for adjusting the optical axis of an optical system

1994-03-10

1995-09-26

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

2502062, 356153, 356400, G01B 1127

Patent

active

054536065

ABSTRACT:
An apparatus for adjusting optical axes of lenses in a lens system detects disagreement of the optical axes, adjusts the position of a subject lens, and fixes the adjusted lens to a lens frame. Parallel light beams constituted by a central and circular peripheral beams are projected to the lens system and form beam spot images on a light receiver. Disagreement of the optical axes is detected as a positional difference between the central beam spot and the centroid of the peripheral beam spots. The subject lens is moved by an adjustment device based on the difference. Adjustment is achieved by repeating the process automatically, and the lens is fixed at the position after the adjustment.

REFERENCES:
patent: 4772123 (1988-09-01), Radner
patent: 5103082 (1992-04-01), Fonneland et al.

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