Title:
LENS ACCESSORY AND LENS BARREL
Document Type and Number:
Japanese Patent JP2018036368
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lens accessory and a lens barrel in which a lens filter can be easily and surely attached to a lens barrel.SOLUTION: A filter frame and a lens cap are provided. The filter frame and the lens cap have a detachable mechanism part for detachably attaching the lens cap to the filter frame, and a rotation regulating part which regulates rotation around a lens optical axis with respect to each other. A rotation regulation is carried out on the basis of the rotation regulating part in an attachment state of the lens cap to the filter frame.SELECTED DRAWING: Figure 1
Inventors:
HAYASHI KAZUTAKA
NAKAI RYOHEI
TAUCHI HISAMASA
TAKAHASHI MASASHI
NAKAI RYOHEI
TAUCHI HISAMASA
TAKAHASHI MASASHI
Application Number:
JP2016167929A
Publication Date:
March 08, 2018
Filing Date:
August 30, 2016
Export Citation:
Assignee:
SIGMA CORP
International Classes:
G03B11/00; G03B11/04; G03B17/14
Domestic Patent References:
| JP2012047804A | 2012-03-08 | |||
| JPS50157243U | 1975-12-26 | |||
| JP2012093611A | 2012-05-17 | |||
| JP2013210447A | 2013-10-10 | |||
| JP2006227118A | 2006-08-31 | |||
| JPS5831532U | 1983-03-01 | |||
| JPS62190230U | 1987-12-03 | |||
| JPH0654045U | 1994-07-22 | |||
| JP2012022052A | 2012-02-02 |