Lens barrel and method of operation of lens barrel

Details Lens barrel and method of operation of lens barrel Lens barrel and method of operation of lens barrel

2006-10-27

2010-11-16

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

Reexamination Certificate

active

07835085

ABSTRACT:
A lens barrel having a first moving barrel, second moving barrel, and a third moving barrel. The first moving barrel has first cam grooves configured corresponding to a focusing operation and holds an optical system used in a focusing operation. The second moving barrel has second cam grooves and is provided in relation to the first moving barrel. The third moving barrel has third cam grooves configured corresponding to a zoom operation and can move relative to a fixed barrel. The second cam grooves correct a position of said optical system corresponding to a drive operation of the third cam grooves.

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