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:
Sep. 30, 2014
Filed:
Oct. 25, 2011
Koji Kitahara, Ina, JP;
Tomoki Sakashita, Chino, JP;
Koji Kitahara, Ina, JP;
Tomoki Sakashita, Chino, JP;
Seiko Epson Corporation, , JP;
Abstract
An optical filter comprising a first substrate, a second substrate having a support portion which supports the first substrate, a first optical film provided on the first substrate, a second optical film provided on the second substrate and arranged to face the first optical film, a first protective film covering at least the first optical film, a second protective film covering at least the second optical film, a first bonding film, a portion of the first bonding film overlapping a surface of the first protective film in a plan view but does not overlapping the first optical film and a second bonding film, a portion of the second bonding film overlapping a surface of the second protective film in the plan view but does not overlapping the second optical film.