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:
Jan. 29, 2019
Filed:
Dec. 26, 2017
Seiko Epson Corporation, Tokyo, JP;
Shohei Yoshida, Shimosuwa-machi, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
An optical element includes a plurality of reflectivity variation partially reflecting mirrors and a light-transmittance member, and the plurality of reflectivity variation partially reflecting mirrors have a plurality of regions having different reflectivity in an inclination direction. The plurality of regions include at least a low reflectivity region positioned on a side far away from an emission surface and a high reflectivity region positioned on a side close to the emission surface. An occupation area of the high reflectivity region of the reflectivity variation partially reflecting mirror positioned far away from an incidence portion is larger than an occupation area of the high reflectivity region of the reflectivity variation partially reflecting mirror positioned on a side close to the incidence portion.