LENS BARREL AND ELECTRONIC APPARATUS

A lens barrel of the present invention is a lens barrel holding a photographing optical system which is a zoom lens constituted by five groups and includes: a cylindrical cam barrel arranged to be rotatable around an optical axis; a first lens driving section driving the cam barrel around the optica...

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Bibliographic Details
Main Authors NIIYAMA TSUBASA, MIKI MAYU, OTA MASAYA, NISHIO AKINORI, WATANABE MASAHITO
Format Patent
LanguageEnglish
Published 02.04.2015
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
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Summary:A lens barrel of the present invention is a lens barrel holding a photographing optical system which is a zoom lens constituted by five groups and includes: a cylindrical cam barrel arranged to be rotatable around an optical axis; a first lens driving section driving the cam barrel around the optical axis; a plurality of first cam grooves carved on an outer circumferential surface of the cam barrel; and a plurality of second cam grooves carved on an inner circumferential surface of the cam barrel. A first lens group holding barrel has a plurality of cam followers that are recessed in the first cam grooves; and each of a second lens group holding barrel and a third lens group holding barrel has a plurality of cam followers that are recessed in the second cam grooves.
Bibliography:Application Number: US201414499644