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:
Aug. 17, 1982

Filed:

Oct. 01, 1979
Applicant:
Inventors:

Michio Yagi, Hachioji, JP;

Hiroshi Sawano, Tokorozawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354 25 ; 354 / ;
Abstract

A camera including a photoelectric focus detecting device, the focused condition judgement level of which can be changed in accordance with the range of depth of focus or field of a photographing lens, with the change in an aperture value or value of an iris diaphragm, with the change or difference in the focal length of the lens, or with the difference in the wide-open F-number of an interchangeable lens.


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