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:
Oct. 06, 2015
Filed:
Jan. 09, 2013
Applicant:
Pentax Ricoh Imaging Company, Ltd., Tokyo, JP;
Inventors:
Assignee:
PENTAX RICOH IMAGING COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 7/10 (2006.01); G03B 9/06 (2006.01); G03B 17/14 (2006.01);
U.S. Cl.
CPC ...
G03B 7/10 (2013.01); G03B 9/06 (2013.01); G03B 17/14 (2013.01);
Abstract
A diaphragm control apparatus is provided with a controller. When a photographing lens is attached to a camera body and a power switch is turned from ON to OFF, a drive motor first moves a diaphragm device to a minimum aperture, and thereafter the drive motor is switched from power ON to OFF. Thus, any damage to the inside of camera body due to sunlight entering into the opening of the diaphragm device can be prevented, and also the structure of camera body can be simplified by reducing the number of parts.