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. 07, 2017
Filed:
Sep. 14, 2015
Dexerials Corporation, Tokyo, JP;
Tsutomu Nagahama, Miyagi, JP;
Hironori Yoshida, Miyagi, JP;
Masaharu Senoue, Fukushima, JP;
Masashi Enomoto, Tokyo, JP;
Hiroyuki Itou, Miyagi, JP;
DEXERIALS CORPORATION, Tokyo, JP;
Abstract
An optical element is provided includes an optical layer having a flat incident surface on which light is incident and a wavelength-selective reflective layer disposed in the optical layer. Of light incident on the incident surface at an incident angle (θ, φ), the optical element selectively directionally reflects light in at least one specific wavelength range in at least one direction other than a specular reflection direction (−θ, φ+180°) while transmitting light in at least one wavelength range other than the specific wavelength range, and is transparent to light in at least one wavelength range other than the specific wavelength range.