Zoom lens lens-barrel and imaging apparatus

Details Zoom lens lens-barrel and imaging apparatus Zoom lens lens-barrel and imaging apparatus

2006-11-20

2008-12-16

Hasan, Mohammed (Department: 2873)

Optical: systems and elements

Lens

With support

C359S823000

Reexamination Certificate

active

07466503

ABSTRACT:
A zoom lens lens-barrel is capable of stabilizing movement of a lens holding frame along an optical axis, ensuring retraction of the lens-barrel into the main body, and reducing the size of the zoom lens lens-barrel. A zoom lens lens-barrel which supports at least one of a plurality of lenses in a movable manner along an optical axis direction comprises a pair of first guide shafts provided parallel to an optical axis Z direction which support outer periphery of a first lens frame and a second lens frame and a pair of second guide shafts provided parallel to the optical axis Z direction and at a different phase position in the lens-barrel plane than the pair of first guide shafts, which support the outer periphery of a third lens frame, a fourth lens frame, and a fifth lens frame.

REFERENCES:
patent: 6392826 (2002-05-01), Hayashi et al.
patent: 6396644 (2002-05-01), Hayashi et al.
patent: 2005/0219718 (2005-10-01), Umezu et al.
patent: 54-43373 (1979-12-01), None
patent: 6294920 (1994-10-01), None
patent: 2005292212 (2005-10-01), None

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