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:
Feb. 07, 1984
Filed:
Apr. 14, 1982
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
354406 ; 354 / ; 354417 ; 354471 ; 354479 ; 354480 ;
Abstract
Disclosed is a single reflex camera with a photoelectric focus detecting device or a photoelectric converting element for receiving light from an object through a picture-taking lens. Light reflected by a photosensitive member or film during exposure thereof is directed to the photoelectric converting element. The picture-taking operation is detected or controlled in accordance with the output from the photoelectric converting element with respect to the light reflected from the photosensitive member.