Lens barrel and imaging apparatus

Details Lens barrel and imaging apparatus Lens barrel and imaging apparatus

2011-08-09

2011-08-09

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S830000

Reexamination Certificate

active

07995287

ABSTRACT:
A lens barrel includes: a lens holding frame holding a lens; a barrel body housing the lens holding frame; motion conversion means for converting rotary motion of the lens holding frame into reciprocating motion along the optical axis of the lens; a manual ring provided on the outer side of the barrel body and rotating around the optical axis; a coreless stepper motor provided on the outer side of the barrel body and rotating around the optical axis; rollers provided between the manual ring and the stepper motor, and rotating in synchronization with the rotation of the manual ring and the stepper motor; motor rotation preventing means for preventing the stepper motor from rotating when the rollers transfer the rotation of the manual ring; an intermediate ring rotating around the optical axis; and a transfer unit transferring the rotary motion of the intermediate ring to the lens holding frame.

REFERENCES:
patent: 2005/0094992 (2005-05-01), Hamasaki et al.
patent: 2007/0297785 (2007-12-01), Kogure et al.
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Office Action from Japanese Application No. 2008-305301, dated Sep. 7, 2010.
Office Action from Japanese Application No. 2008-305301, dated Jan. 4, 2011.

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