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:
Dec. 04, 2007
Filed:
Apr. 19, 2006
Kenji Nagashima, Osaka, JP;
Hitoshi Fujii, Osaka, JP;
Fuminori Tanaka, Osaka, JP;
Susumu Sugiyama, Shiga, JP;
Akira Ishii, Shiga, JP;
Katsuhiko Tanaka, Shiga, JP;
Wataru Kuze, Osaka, JP;
Kenji Nagashima, Osaka, JP;
Hitoshi Fujii, Osaka, JP;
Fuminori Tanaka, Osaka, JP;
Susumu Sugiyama, Shiga, JP;
Akira Ishii, Shiga, JP;
Katsuhiko Tanaka, Shiga, JP;
Wataru Kuze, Osaka, JP;
Funai Electric Co., Ltd., Osaka, JP;
Abstract
In a variable-shape mirror () of which the shape of the mirror surface can be varied, four piezoelectric elements () are sandwiched between a support base () and a mirror portion (), and are arranged symmetrically in cross-shaped directions. The piezoelectric elements () are bonded to the mirror portion (), and serve both to vary the shape of the mirror portion () by being driven and to fix the mirror portion () to the support base (). Support portions () are arranged one inside each of the piezoelectric elements (). With this structure, a small movement that the piezoelectric elements () produce when driven can be converted into a large movement of the mirror portion ().