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:
Jun. 23, 2015
Filed:
Jul. 04, 2011
Shingo Fuchi, Nagoya, JP;
Yoshikazu Takeda, Nagoya, JP;
Shingo Fuchi, Nagoya, JP;
Yoshikazu Takeda, Nagoya, JP;
NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, Nagoya-Shi, Aichi, JP;
Abstract
[PROBLEM] There is provided a broadband infrared light emitting device that radiates infrared light having a band broader than a conventional broadband infrared light emitting device. [MEANS FOR SOLVING] The broadband infrared light emitting device at least includes: a light sourcethat emits first excitation light λin a first wavelength range; a first glass phosphorthat has an excitation band in a first wavelength range, and when the first excitation light λis incident thereon, emits second excitation light λin a second wavelength range and first infrared light λin a third wavelength range; and a second glass phosphorthat has an excitation band in the second wavelength range and does not have an excitation band in the third wavelength range, and when the second excitation light λis incident thereon, allows the first infrared light λto pass therethrough and emits second infrared light λin a fourth wavelength range, and the broadband infrared light emitting device radiates broadband infrared light including at least a part of the third wavelength range and at least a part of the fourth wavelength range to an outside of the broadband infrared light.