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. 26, 2018
Filed:
Oct. 27, 2017
Epistar Corporation, Hsinchu, TW;
Chih-Chiang Lu, Hsinchu, TW;
Yi-Chieh Lin, Hsinchu, TW;
Rong-Ren Lee, Hsinchu, TW;
Yu-Ren Peng, Hsinchu, TW;
Ming-Siang Huang, Hsinchu, TW;
Ming-Ta Chin, Hsinchu, TW;
Yi-Ching Lee, Hsinchu, TW;
EPISTAR CORPORATION, Hsinchu, TW;
Abstract
A light-emitting device is provided. comprises: a light-emitting stack comprising an active layer emitting a first light having a first peak wavelength λ nm; and an adjusting element stacked on and electrically connected to the active layer, wherein the adjusting element comprises a diode emitting a second light having a second peak wavelength between 800 nm and 1900 nm; wherein a forward voltage of the light-emitting device is between (1240/0.8λ) volt and (1240/0.5λ) volt, and a ratio of the intensity of the first light emitted from the active layer at the first peak wavelength to the intensity of the second light emitted from the diode at the second peak wavelength is greater than 10 and not greater than 1000.