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:
Feb. 16, 1988
Filed:
Oct. 16, 1985
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a vari-focal camera which has a photo-taking optical system including a main lens system and an auxiliary lens system and is arranged to be shiftable between at least two different focal lengths by moving the photo-taking optical system back and forth on a photo-taking optical axis in such a way as to cause the auxiliary lens system to move onto and out of the optical axis, a guide bar is arranged to allow a lens barrel unit which includes the photo-taking optical system, a shutter and a photo-taking lens focusing device to straightly move. The guide bar is fittingly engaged with a member secured to a camera body. The camera is further provided with an adjusting member for focusing the photo-taking optical system in each of preset positions in which the photo-taking lens has the different focal lengths.