The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 15, 2015

Filed:

Jun. 08, 2012
Applicants:

Makoto Iikawa, Tokyo, JP;

Makoto Niwa, Saitama, JP;

Yuji Kogure, Saitama, JP;

Takahiro Kobayashi, Saitama, JP;

Masahiro Inazuka, Saitama, JP;

Ichiro Taguchi, Saitama, JP;

Kosei Kosako, Tokyo, JP;

Inventors:

Makoto Iikawa, Tokyo, JP;

Makoto Niwa, Saitama, JP;

Yuji Kogure, Saitama, JP;

Takahiro Kobayashi, Saitama, JP;

Masahiro Inazuka, Saitama, JP;

Ichiro Taguchi, Saitama, JP;

Kosei Kosako, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 17/14 (2006.01); G02B 7/14 (2006.01); G03B 17/00 (2006.01);
U.S. Cl.
CPC ...
G03B 17/14 (2013.01); G02B 7/14 (2013.01); G03B 17/00 (2013.01); G03B 2206/00 (2013.01);
Abstract

A camera body includes body-side bayonet lugs concentric with lens-side bayonet lugs, circular-arc openings, a circular arc protrusion positioned inside the camera body and projecting forward and concentric with the body-side bayonet lugs, body-side contact portions provided and arranged on the front end surface of the circular arc protrusion and come into contact with lens-side contact portions which are provided on the lens barrel, and rearward biasers provided immediately behind two of the body-side bayonet lugs to bias and move the lens-side bayonet lugs rearward, wherein two of the body-side contact portions located at both ends in the lengthwise direction and the two rearward biasers lie on radial-direction extension lines of the circular arc protrusion, respectively, as viewed in an optical axis direction.


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