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:
Apr. 18, 2000
Filed:
Feb. 16, 1999
Applicant:
Inventors:
Hiroyuki Arai, Omiya, JP;
Makoto Akiba, Omiya, JP;
Tatsuo Saito, Omiya, JP;
Akio Omiya, Omiya, JP;
Hisashi Hamada, Asaka, JP;
Tokuji Sato, Asaka, JP;
Assignees:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Fuji Photo Optical Co., Ltd., Saitama, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
396100 ; 396233 ; 396268 ; 396275 ; 396448 ;
Abstract
In a camera wherein a lens cap is detachably attached there are provided first and second photometric sensors on a lens barrel and the camera main frame, respectively. It is detected in accordance with the photometric values by the first and second photometric sensors whether the lens cap is mounted. According to the camera, it is possible to detect with great accuracy whether the lens cap is mounted, with a standard type lens cap.