Photography – Folding or collapsible camera – Having axially moving lens
Reexamination Certificate
2006-05-18
2009-06-23
Patidar, Jay M (Department: 2862)
Photography
Folding or collapsible camera
Having axially moving lens
C396S075000, C359S665000, C359S666000, C359S667000
Reexamination Certificate
active
07549806
ABSTRACT:
A retractable lens assembly with a variable-volume lens is provided. The retractable lens assembly includes an optical lens, a variable-volume lens, a fluid pump, a communication tube, and a storage tank. The variable-volume lens includes a lens film, an accommodation space wrapped by the lens film, and a transparent fluid within the accommodation space. Therefore, when the transparent fluid is pumped from the accommodation space to the storage tank by the fluid pump, the variable-volume lens is folded because of atmospheric pressure, such that the overall thickness and volume are reduced. When the variable-volume lens is folded, the thickness of the retractable lens assembly is as small as possible. When the variable-volume lens is stretched out because of being filled with the transparent fluid, the variable-volume lens and the optical lens are of a coaxial configuration, forming a photographic optical system.
REFERENCES:
patent: 5774273 (1998-06-01), Bornhorst
patent: 5973852 (1999-10-01), Task
patent: 6081388 (2000-06-01), Widl
patent: 6201933 (2001-03-01), Hylen
patent: 6658208 (2003-12-01), Watanabe et al.
patent: 6978089 (2005-12-01), Nomura et al.
patent: 2007/0080280 (2007-04-01), Havens
patent: 2007/0201850 (2007-08-01), Hendriks et al.
patent: 2007/0217022 (2007-09-01), Kuiper et al.
patent: 2008/0080064 (2008-04-01), Kogo et al.
Altek Corporation
Birch & Stewart Kolasch & Birch, LLP
Patidar Jay M
LandOfFree
Retractable lens assembly with variable-volume 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 Retractable lens assembly with variable-volume lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retractable lens assembly with variable-volume lens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4095172