Lens driving cam mechanism

Details Lens driving cam mechanism Lens driving cam mechanism

1989-05-05

1990-08-21

Arnold, Bruce Y.

350255, G02B 1500, G02B 704

Patent

active

049500600

ABSTRACT:
A lens-driving cam mechanism includes a zoom cylinder rotatable about the optical axis of the lens and a zoom cam ring incapable of rotation about the optical axis provided on the peripheral surface of the zoom cylinder. A front cam portion and a rear cam portion are formed on the zoom cylinder. Cam followers which contact with the front cam portion and the rear cam portion are formed on the peripheral surface of the zoom cylinder. When the zoom cylinder rotates, the zoom cam ring is moved along the optical axis by the cooperation of the cam portions and the cam followers. The zoom cam ring has on the inner surface thereof a cam follower-inserting groove for permitting one of the cam followers to pass therethrough so that the zoom cylinder and the zoom cam ring can be assembled.

REFERENCES:
patent: 4576446 (1986-03-01), Kamata
patent: 4636042 (1987-01-01), Komine et al.
patent: 4834514 (1989-05-01), Atsuta et al.

Affiliated with

Also associated with

Rating

Lens driving cam mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lens driving cam mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens driving cam mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1673033