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. 09, 1991
Filed:
Jul. 02, 1990
Applicant:
Inventor:
Tatsuhide Takebayashi, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
354400 ; 354286 ;
Abstract
A single lens reflex camera having a camera body, an interchangeable lens which is detachably mounted to the camera body, a focus adjusting mechanism provided in the interchangeable lens, a drive unit which is provided in the camera body to drive the focus adjusting mechanism in the interchangeable lens, and electrical contacts which are provided on the drive unit to transmit and receive electrical signals and/or the electrical power between the camera body and the interchangeable lens.