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:
Aug. 28, 2018
Filed:
May. 15, 2014
Seiko Epson Corporation, Tokyo, JP;
Kunihiko Yano, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
In an optical element, a half mirror layer includes a silver layer, a first dielectric multilayer film that is provided between the silver layer and a first translucent member made of resin, and a second dielectric multilayer film that is provided on the opposite side to the first translucent member with respect to the silver layer. The first dielectric multilayer film includes a first aluminum oxide layer that is in contact with the silver layer, and a titanium oxide layer that is in contact with the first aluminum oxide layer on the first translucent member side. The second dielectric multilayer film includes a zirconium oxide layer (zirconium oxide-based dielectric layer) and a second aluminum oxide layer that is in contact with the zirconium oxide layer, and one of the second aluminum oxide layer and the zirconium oxide layer is in contact with the silver layer.