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:
Jun. 25, 2019
Filed:
Sep. 25, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Daisuke Saito, Matsumoto, JP;
Satoshi Fujisawa, Tatsuno, JP;
Yasushi Matsuno, Matsumoto, JP;
Nozomu Hirokubo, Fujimi, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/26 (2006.01); G02B 5/28 (2006.01); G02B 7/00 (2006.01); G02B 26/00 (2006.01);
U.S. Cl.
CPC ...
G02B 26/001 (2013.01); G01J 3/26 (2013.01); G02B 5/288 (2013.01); G02B 7/006 (2013.01);
Abstract
An optical filter device includes a wavelength variable interference filter that includes a pair of reflective films which face each other, and a fixed substrate in which one of the pair of reflective films is provided; a base to which the fixed substrate is fixed; and a fixing member which fixes one place on the fixed substrate to the base, a surface which is on other place of the one place of the substrate and the base are disposed with a gap therebetween.