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:
Mar. 31, 1987
Filed:
May. 16, 1985
Yasuyuki Haneishi, Itabashi, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A lens for a photographic camera adapted to be mounted on a camera body, has a lens barrel, a lens mount secured on the lens barrel, and at least one contact for transmitting information to the camera body. The contact has first and second contiguous portions independently movable into and out of the lens mount. A first spring urges the first portion of the contact out of the lens mount. A second spring independent of the first spring urges the second portion of the contact out of the lens mount. Preferably, the first portion of the contact is a hollow cylinder, the second portion of the contact fits in the hollow of the first portion, and the ends of the first and second portions facing away from the lens mount are both convex and smoothly continuous at their convex ends.