Light shielding device of a lens

Details Light shielding device of a lens Light shielding device of a lens

2006-12-05

2009-12-01

Patidar, Jay M (Department: 2858)

Photography

Folding or collapsible camera

Having axially moving lens

C396S072000, C359S601000, C359S611000

Reexamination Certificate

active

07625140

ABSTRACT:
A light shielding device of a lens includes a movable barrel; an outer member positioned around the movable barrel; and a light shield ring for preventing ambient light entering the lens through a clearance between the movable barrel and the outer member, the light shield ring having a center opening through which the movable barrel is movably fitted and a self-centering annular portion around the center opening. The self-centering annular portion is in contact with an outer surface of the movable barrel and is bent by, and along, the outer cylindrical surface of the movable barrel. The light shield ring is biased against an annular part of the outer member by a biasing member, so that the light shielding ring is movable in a radial direction when a radial force is applied to the light shielding ring via the movable barrel and the self-centering annular portion.

REFERENCES:
patent: 5699200 (1997-12-01), Uno et al.
patent: 5946532 (1999-08-01), Ichinokawa
patent: 6024457 (2000-02-01), Kawai et al.
patent: 6400901 (2002-06-01), Akami et al.
patent: 6919995 (2005-07-01), Nomura et al.
patent: 7093944 (2006-08-01), Tanaka
patent: 7295772 (2007-11-01), Makii
patent: 2001/0009611 (2001-07-01), Akami et al.
patent: 2001/0048557 (2001-12-01), Akami et al.
patent: 2004/0070849 (2004-04-01), Tanaka
patent: 2001-337257 (2001-12-01), None

Affiliated with

Also associated with

Rating

Light shielding device of a lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light shielding device of a lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light shielding device of a lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4070531