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. 30, 2018
Filed:
Dec. 23, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Nozomu Hirokubo, Matsumoto, JP;
Yasushi Matsuno, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/12 (2006.01); G02B 5/28 (2006.01); G01J 3/28 (2006.01);
U.S. Cl.
CPC ...
G01J 3/12 (2013.01); G01J 3/28 (2013.01); G02B 5/284 (2013.01); G01J 2003/1226 (2013.01);
Abstract
A variable wavelength interference filter is fixed to the base, and the fixing material fixes at least one of the substrates to the base via at least one location of one surface side along a substrate thickness direction. A first order resonance frequency of the variable wavelength interference filter in which a fixing position of the fixing material is used as a fixed end is less than or equal to half a value of a first order resonance frequency of the movable section.