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:
Oct. 11, 2011
Filed:
Apr. 27, 2010
Harushige Yamamoto, Yamato, JP;
Takumi Uehara, Kawasaki, JP;
Kazushige Ichino, Kokubunji, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical element positioning apparatus capable of moving an optical element from a storage state to a use state and improving the accuracy of positioning the optical element to a use position on an optical path. A holding member that holds the optical element is guided by guide shafts to be movable between the storage state and the use state. The holding member is provided with guide-supporting and receiving portions through which the guide shafts are slidably inserted. The guide shafts are supported by holding portions. A degree of freedom in positioning the holding member at the use position is provided. Holding-member positioning parts of the guide-supporting and receiving portions are pressed by an urging device against ends of the holding portions, whereby the holding member is positioned and held at the use position.