Lens barrel having a lens barrier mechanism

Details Lens barrel having a lens barrier mechanism Lens barrel having a lens barrier mechanism

2006-08-08

2006-08-08

Thompson, Timothy (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S701000, C359S704000, C359S819000

Reexamination Certificate

active

07088524

ABSTRACT:
A lens barrel includes a guide barrel, an outer ring, an inner ring, a cam ring and a movable lens frame, arranged in that order from outermost side, wherein the axes thereof coincide with a common optical axis, the outer ring being guided linearly in the optical axis direction by the stationary barrel, the inner ring being linearly guided in the optical axis direction by the outer ring, and the cam ring being rotatable to move the movable lens frame in the optical axis direction; and a lens barrier mechanism having an aperture positioned in front of the movable lens frame, the lens barrier mechanism being provided on a front opening of the inner ring, for opening and closing the aperture.

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