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.

Date of Patent:
Dec. 13, 2016

Filed:

Dec. 01, 2014
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Hideo Imai, Shimosuwa, JP;

Yasushi Matsuno, Matsumoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); G02B 7/00 (2006.01); B81B 7/00 (2006.01);
U.S. Cl.
CPC ...
G02B 26/001 (2013.01); B81B 7/0067 (2013.01); G02B 7/006 (2013.01); B81B 2201/042 (2013.01); B81C 2203/0145 (2013.01);
Abstract

An electronic device includes a variable wavelength interference filter, and a package adapted to house the variable wavelength interference filter. The package includes a base substrate provided with a light passage hole through which light passes, and a base substrate side light transmissive substrate adapted to block the light passage hole and having a light transmissive property. The base substrate is formed of a laminated body having a plurality of layers stacked on each other, and the light passage hole is formed so that a second opening located on an opposite side to the variable wavelength interference filter is larger in area than a first opening located on the variable wavelength interference filter side.


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