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. 07, 2021
Filed:
Feb. 28, 2017
Osaka Gas Co., Ltd., Osaka, JP;
Kyoto University, Kyoto, JP;
Masahiro Suemitsu, Osaka, JP;
Tadashi Saito, Osaka, JP;
Susumu Noda, Kyoto, JP;
Takashi Asano, Kyoto, JP;
Menaka De Zoysa, Kyoto, JP;
Osaka Gas Co., Ltd., Osaka, JP;
Kyoto University, Kyoto, JP;
Abstract
A thermal emission source is provided that has a structure capable of suppressing deterioration of an optical assembly over time. The thermal emission source includes an optical assembly () having an optical structure in which a member made of a semiconductor has a refractive index distribution so as to resonate with light of a wavelength shorter than a wavelength that corresponds to an absorption edge corresponding to a band gap of the semiconductor. The optical assembly () includes a coating structure () with a coating material that differs from the semiconductor of refractive portions () and through which light of a wavelength included in a wavelength range from visible light to far infrared rays can be transmitted.