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:
Mar. 08, 2016
Filed:
Feb. 08, 2013
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Susumu Shinto, Suwa-gun, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/28 (2006.01); G02B 26/00 (2006.01); G01J 1/04 (2006.01); G01J 3/26 (2006.01); G01J 3/51 (2006.01);
U.S. Cl.
CPC ...
G02B 5/28 (2013.01); G01J 1/0488 (2013.01); G01J 3/26 (2013.01); G01J 3/51 (2013.01); G02B 5/284 (2013.01); G02B 26/001 (2013.01);
Abstract
An interference filter includes a first substrate, a second substrate opposed to the first substrate, a first optical film provided to the first substrate, and a second optical film provided to the second substrate and opposed to the first optical film, at least one of the first and second optical films has a metal film having a reflecting property and a transmitting property with respect to light in a desired wavelength band, a surface and an edge portion of the metal film are covered by a barrier film, and the barrier film is formed of a material having conductivity.