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.
Patent No.:
Date of Patent:
Sep. 19, 2017
Filed:
May. 31, 2012
Applicant:
Hiroaki Takahara, Tokyo, JP;
Inventor:
Hiroaki Takahara, Tokyo, JP;
Assignee:
NIKON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01); G02B 7/34 (2006.01); G03B 13/34 (2006.01); G03B 17/14 (2006.01);
U.S. Cl.
CPC ...
H04N 5/23209 (2013.01); G02B 7/34 (2013.01); G03B 13/34 (2013.01); G03B 17/14 (2013.01); H04N 5/23212 (2013.01); G03B 2206/00 (2013.01);
Abstract
A lens barrel comprising: an optical system which includes a focus adjustment optical systeman aperturewhich limits the light beam which pass through the optical system to predetermined range at the time of detection of the focus state of the optical system; a drivewhich drives the focus adjustment optical systema memorywhich stores a first predetermined value which is a aperture value within the predetermined range; and a transmitterwhich sends the first predetermined value to the camera body