Lens barrel and camera including it

Details Lens barrel and camera including it Lens barrel and camera including it

2007-09-04

2010-12-14

Thompson, Timothy J (Department: 2873)

Optical: systems and elements

Lens

With support

C359S821000, C359S822000

Reexamination Certificate

active

07852578

ABSTRACT:
A lens barrel includes a plurality of lens groups (1, 2), lens frames (1a,2a) to hold the plurality of lens groups, respectively, a lens driving apparatus to drive the plurality of lens frames and a fixed member (5) to hold the lens driving apparatus. The lens driving group includes a rotational member (6) which is forwardly moved while rotating relative to the fixed member (5), a linearly moving guide member (7) which moves with the rotational member (6) in the optical axial direction while limiting rotation of the lens frames and is not capable of rotating, and a linearly moving-guide biasing member (8) which is capable of moving in the optical axial direction relative to the linearly moving guide member and is configured to limit rotation. The linearly moving-guide biasing member has a resilient structure configured to bias the linearly moving guide member in the optical axial direction.

REFERENCES:
patent: 6853499 (2005-02-01), Iwasaki et al.
patent: 7230773 (2007-06-01), Nomura et al.
patent: 2003/0081325 (2003-05-01), Nomura et al.
patent: 2004/0130803 (2004-07-01), Iwasaki
patent: 2006/0056078 (2006-03-01), Nomura et al.
patent: 04-221914 (1992-08-01), None
patent: 2003-140018 (2003-05-01), None
patent: 2003-270509 (2003-09-01), None
patent: 2004-144790 (2004-05-01), None
patent: 2006-071844 (2006-03-01), None

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