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:
Jan. 05, 2021
Filed:
Jul. 11, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Choshoku Sai, Utsunomiya, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01); G02B 27/00 (2006.01); G03B 21/28 (2006.01); G02B 27/09 (2006.01); G03F 7/20 (2006.01);
U.S. Cl.
CPC ...
G02B 26/0825 (2013.01); G02B 27/0043 (2013.01); G02B 27/0983 (2013.01); G03B 21/28 (2013.01); G03F 7/70266 (2013.01);
Abstract
An optical device includes a mirror, and a plurality of actuators configured to deform a shape of a reflecting surface of the mirror. At least some of the plurality of actuators are arranged on a plurality of concentric circles arranged in such a manner that the concentric circles are arranged denser as positions of the concentric circles are located farther from a center of the reflecting surface of the mirror, and at least some of the plurality of actuators are arranged at equal intervals in circumferential directions of the concentric circles.