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:
Jul. 10, 1984
Filed:
Dec. 30, 1982
Applicant:
Inventor:
Masaaki Morizumi, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354403 ;
Abstract
In an automatic focusing camera comprising a light emitting element and a object distance detecting system, the improvement comprises rotating element which rotates about an optical axis of the camera lens, and optical refracting element for changing directions of the emitted light rays to swing the light rays within a range covering a short object distance and a long object distance, so that the object distance can be represented by an angular displacement of the rotating element.