Apparatus for defining a position of a lens

Details Apparatus for defining a position of a lens Apparatus for defining a position of a lens

1992-01-16

1994-02-22

Arnold, Bruce Y.

Optical: systems and elements

Lens

With support

359823, 354286, G02B 702, G03B 1700

Patent

active

052893200

ABSTRACT:
A lens position definition apparatus is provided in, for example, a camera. The apparatus includes a base member, a cam mechanism for controlling a position of the lens relative to the base member along a direction of an optical axis thereof in accordance with a rotational position thereof about the optical axis, and at least one spring for urging the lens in a direction inclined to the direction of the optical axis and the rotation thereof, in order to enable the cam mechanism to operate.

REFERENCES:
patent: 3049970 (1962-08-01), Steinberg
patent: 4088396 (1978-05-01), Edelstein
patent: 4442524 (1984-04-01), Reeder et al.
patent: 4487495 (1984-12-01), Kimata et al.
patent: 4720167 (1988-01-01), Okura
English Language Abstract of Japanese Publication No. 54-71626.

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