Lens barrel, and camera

Details Lens barrel, and camera Lens barrel, and camera

2011-08-16

2011-08-16

Mack, Ricky (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S704000

Reexamination Certificate

active

08000028

ABSTRACT:
Provided is a lens barrel, which can be further reduced by providing such a first helicoid as can be easily manufactured even in the zone of a small lead. The lens barrel (1) comprises a first barrel member (6) having a first helicoid (18, 25and26) formed in a first face (6a), and a second barrel member (21) having a second helicoid (24) formed in a second face (21a) confronting the first face (6a). The lens barrel is characterized in that the first barrel member (6) has, in the first face (6a), a first zone (Z1), in which the first helicoid (18, 25and26) has a first lead, and a second zone (Z2and Z3), in which the first helicoid (18and25) has a second lead smaller than the first lead, and in that the first helicoid (18and25) having the second lead has a smaller thread number than that of the first helicoid (18, 25and26) having the first lead.

REFERENCES:
patent: 6714730 (2004-03-01), Horiuchi et al.
patent: 2003/0180036 (2003-09-01), Horiuchi et al.
patent: 2004/0042095 (2004-03-01), Nomura
patent: 2003-279828 (2003-10-01), None
patent: 2004-151710 (2004-05-01), None
patent: 2004-252365 (2004-09-01), None
patent: 2006-113418 (2006-04-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2794425