Lens barrel

Details Lens barrel Lens barrel

1982-03-31

1985-05-07

Punter, William H.

G02B 704

Patent

active

045154384

ABSTRACT:
A lens barrel having a moving frame moving in a direction of an optical axis of a zoom lens or the like, wherein the outer surface of the moving frame is not slidably moved in contact with the inner surface of the barrel. Instead, multiple guide grooves and an engaging member slidably moved along the guide grooves are provided on the barrel and the moving frame in such a manner that they are not positioned only diametrically on the barrel. Elimination of a rattle or play in the contact between the guide grooves and the engaging member is made easier, and any inner reflection from lubricant on the sliding surface can be avoided.

REFERENCES:
patent: 2006464 (1935-07-01), Laube et al.
patent: 3249008 (1966-05-01), Angenieux
patent: 3472564 (1969-10-01), Kellner
patent: 3897998 (1975-08-01), Someya et al.
patent: 4172634 (1979-10-01), Thompson
patent: 4380378 (1983-04-01), Tamura

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