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:
May. 22, 2001
Filed:
Feb. 09, 2000
Mitsuhiko Oka, Saitama, JP;
Fuji Photo Optical Co., Ltd., Saitama, JP;
Abstract
A zoom viewfinder device has a viewfinder body. Two movable lenses are accommodated in the viewfinder body. A lens moving mechanism drives the movable lenses in the viewfinder body. A rectilinear guiding mechanism guides movement of each movable lens in an optical axis direction thereof. In the rectilinear guiding mechanism, a rectilinear guiding groove is formed in the viewfinder body, extended in the optical axis direction. A follower projection is formed with a periphery of the movable lens, for contacting the rectilinear guiding groove to slide along the rectilinear guiding groove. A one-side positioning rod keeps the follower projection pressed on the rectilinear guiding groove by pushing the movable lens in a direction crosswise to the optical axis direction, for absorbing play of the movable lens relative to the optical axis direction.