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. 13, 2009
Filed:
Mar. 04, 2008
Hirotoshi Torii, Utsunomiya, JP;
Kouhei Imoto, Saitama, JP;
Hirotoshi Torii, Utsunomiya, JP;
Kouhei Imoto, Saitama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A holding apparatus that holds an optical element above a base includes three holding units provided at different positions along an outer periphery of the optical element. Each holding unit includes a first member provided on the optical element, a second member provided on the base, a columnar third member extending in a direction perpendicular to both a tangential direction and a radial direction of the optical element, and a plate-shaped fourth member having a thickness in the radial direction of the optical element. The first member and the second member are connected to each other with the third member and the fourth member disposed therebetween.