Lens barrel and photographing apparatus

Details Lens barrel and photographing apparatus Lens barrel and photographing apparatus

2005-07-08

2008-03-04

Stultz, Jessica T (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S703000, C359S822000

Reexamination Certificate

active

07339751

ABSTRACT:
A lens barrel includes a straight-moving cylinder including a lens group therein, being movable in a direction of an optical axis of the lens group without being rotated, and having a depression on a posterior end portion of the straight-moving cylinder; a guide pin protruding from the outer circumferential surface of the straight-moving cylinder; a rotational-moving cylinder movable in the direction of the optical axis, having a cam groove for engaging with the guide pin); and a reinforcement pin projecting from the inner circumferential surface of the rotational-moving cylinder; wherein the depression includes a contact surface separated from a side portion of the reinforcement pin with a predetermined clearance.

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