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:
Jan. 05, 1982
Filed:
Dec. 10, 1979
Yasumasa Tomori, Sakado, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A lens barrel device capable of switching easily between automatic and manual focalizing operational modes with the lens barrel device deriving its focalizing operational force from a rotary member mounted in the camera body. A corresponding rotary member in the lens barrel rotates a rotary cylinder so as to move it straight along the optical axis of the barrel with the focalizing operational force being transferred from the rotary member to the rotary cylinder through a driven member and a holding member. The driven member and the holding member are coupled to the rotary cylinder by fixing the holding member to the driven member with an edge of the driven member and an edge of the holding member confronting first and second grooves formed in the rotary cylinder. An engaging ring is fixed to the holding member. Members which engage and disengage according to the longitudinal displacement of the operating ring along the optical axis are provided between the engaging ring and the operating ring.