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. 24, 2017
Filed:
May. 25, 2016
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Makiko Hino, Matsumoto, JP;
Yasushi Mizoguchi, Suwa, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/28 (2006.01); G09G 3/00 (2006.01); G02B 27/01 (2006.01); G03B 21/14 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
G09G 3/007 (2013.01); G02B 27/01 (2013.01); G02B 27/017 (2013.01); G02B 27/0172 (2013.01); G03B 21/005 (2013.01); G03B 21/14 (2013.01); G03B 21/28 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0154 (2013.01); G03B 2205/0069 (2013.01);
Abstract
An optical device includes a glass plate, a movable unit that supports the glass plate, axis portions that swingably support the movable unit around a swing axis, a support unit that supports the axis portions and, a permanent magnet that is provided in the movable unit, and coils that are disposed to face the permanent magnet and generate a magnetic field to be applied to the permanent magnet. The movable unit includes a through hole that the permanent magnet is inserted into and a protrusion portion that protrudes inside the through hole to support the permanent magnet.