Lens mounting

Details Lens mounting Lens mounting

1987-03-25

1988-11-29

Corbin, John K.

350255, G02B 704

Patent

active

047877200

ABSTRACT:
A cam sleeve for axially moving a lens as it rotates about an optical axis is provided with a pair of camming grooves that depict the same locus. And, a holding member for the lens to be guided by a guide member is provided with a pair of pins corresponding to the pair of camming grooves. These pins engage in the pair of camming grooves to achieve good stability of movement of the lens when the cam sleeve rotates.

REFERENCES:
patent: 3951522 (1976-04-01), Hashimoto
patent: 4636042 (1987-01-01), Komine et al.
patent: 4676605 (1987-06-01), Toda et al.

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