Lens barrel and image capturing apparatus

Details Lens barrel and image capturing apparatus Lens barrel and image capturing apparatus

2011-08-02

2011-08-02

Hasan, Mohammed (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S702000, C359S704000

Reexamination Certificate

active

07990626

ABSTRACT:
Provided is a lens barrel comprising: an optical system including an optical component that moves relative to a fixed cylinder; a holding frame that holds the optical component; a guide axle that is connected to the holding frame and that extends in a direction parallel to an optical axis of the optical system; a scaling drive unit that can move relative to the fixed cylinder and that moves the holding frame in the direction of the optical axis when the optical system scales; and a focusing drive unit that has at least a portion thereof fixed to the fixed cylinder and that moves the guide axle in the direction of the optical axis while facing at least a portion of the guide axle.

REFERENCES:
patent: 4805991 (1989-02-01), Arai et al.
patent: 4925282 (1990-05-01), Kanno et al.
patent: 5523892 (1996-06-01), Yoshibe et al.
patent: 5539583 (1996-07-01), Watanabe et al.
patent: 7038859 (2006-05-01), Tsuzuki
patent: A-2000-089086 (2000-03-01), None

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