Lens barrel, camera and portable information terminal

Details Lens barrel, camera and portable information terminal Lens barrel, camera and portable information terminal

2007-05-15

2007-05-15

Thompson, Timothy (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S694000, C359S676000

Reexamination Certificate

active

11188691

ABSTRACT:
A lens barrel including a telescopic cylinder accommodated within a fixed cylinder and lenses, the lens barrel having lens retaining frames and a lens driving device which drives the telescopic cylinder between a collapsed position and an extended position, wherein the lens barrel further includes a retractable lens that is retracted into the fixed cylinder through an opening in a wall of the fixed cylinder when the telescopic cylinder is in the extended position, a retractable lens retaining frame therefor and an impact preventing member, and wherein if the lenses are in the extended position and an external impact is received by the lens barrel, the impact preventing member abuts against one of the lens retaining frames to prevent the lens retaining frames from moving to the collapsed state.

REFERENCES:
patent: 4214829 (1980-07-01), Ohashi
patent: 4811060 (1989-03-01), Miyawaki et al.
patent: 5099263 (1992-03-01), Matsumoto et al.
patent: 5765049 (1998-06-01), Hase et al.
patent: 6730333 (2004-05-01), Garrity et al.
patent: 2005/0068638 (2005-03-01), Nuno et al.
patent: 2003-295031 (2002-03-01), None
patent: 2004-117399 (2004-04-01), None
patent: 2004-117400 (2004-04-01), None
patent: 2004-117401 (2004-04-01), None
patent: 2004-117402 (2004-04-01), None
Patent Abstracts of Japan, JP 09-015480, Jan. 17, 1997.
Patent Abstracts of Japan, JP 2003-315861, Nov. 6, 2003.

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