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. 27, 2003
Filed:
Apr. 02, 2001
Motokazu Shimizu, Saitama, JP;
Fuji Photo Optical Co., Ltd., Saitama, JP;
Abstract
The invention relates to a view finder with improved structure for providing accurate posisioning and alignment of optical elements of its optical system. The view finder comprises an object lens system at least one lens of which is movable along an optical axis of the object lens system being guided by a first guide shaft and an eye-piece lens system at least one lens of which is movable along an optical axis of the eye-piece lens system being guided by a second guide shaft, wherein the first guide shaft and the second guide shaft are positioned in axial alignment. Preferably the first guide shaft and the second guide shaft are integrally formed and immovable optical elements such as fixed lens and prism of the optical system are also supported by the same guide shaft.