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. 03, 1984
Filed:
Apr. 19, 1982
Shinsuke Komoto, Tokyo, JP;
Yasuyuki Haneishi, Tokyo, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A lens barrel for a camera body, having a first mount electrically connected to a first branch circuit and a first electrical contact connected to a second branch circuit, has a movable second contact which is retractable into a surface of a second mount on the lens barrel. A switching member is electrically connected to the movable second contact and is adapted to extend and retract the latter so that the movable second contact is electrically connected to the first contact of the camera body when extended, and is spaced apart therefrom when retracted. The switching member has a lower end portion having a third contact thereon, which electrically connects the switching member, the movable second contact and the second branch circuit with the first branch circuit when the movable second contact is extended.