Lens barrel

Details Lens barrel Lens barrel

2011-05-31

2011-05-31

Blackman, Rochelle-Ann J (Department: 2862)

Photography

Having variable focal length of camera objective

Power zoom

C396S533000, C359S700000, C359S701000, C359S704000

Reexamination Certificate

active

07953317

ABSTRACT:
A lens barrel includes a driven ring, a follower provided on the driven ring, a rotational transfer ring including a circumferential groove having no axial-direction component and a rotational transfer groove including an axial-direction component, a guide ring, and a cam groove formed on the guide ring for guiding the driven ring via the follower. Rotation of the driven ring is prevented when the follower is engaged in the circumferential groove so that the driven ring is held at a non-photographing position. When the follower is engaged in the rotational transfer groove, the driven ring is moved along the cam groove between the non-photographing position and a ready-to-photograph position. Opposed wall surfaces in the circumferential groove determine a position of the follower when the driven ring moves between the non-photographing position and the ready-to-photograph position. The range of the cam groove, that is used to move the driven ring between the ready-to-photograph position and the non-photographing position of the guide ring, includes an axial-direction component.

REFERENCES:
patent: 6978089 (2005-12-01), Nomura et al.
patent: 7013081 (2006-03-01), Nomura et al.
patent: 7131772 (2006-11-01), Nomura
patent: 7289725 (2007-10-01), Nomura
patent: 7507040 (2009-03-01), Nomura et al.
patent: 2006/0034604 (2006-02-01), Nomura et al.
patent: 2006/0115250 (2006-06-01), Nomura
patent: 2007/0177865 (2007-08-01), Nomura et al.
patent: 2008/0019685 (2008-01-01), Ishizuka et al.
patent: 2006-053444 (2006-02-01), None
patent: 3771909 (2006-02-01), None
English language Abstract of JP 2006-053444 A (Feb. 23, 2006).

Affiliated with

Also associated with

Rating

Lens barrel 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 barrel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens barrel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2637255