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:
Oct. 20, 2020
Filed:
Jan. 29, 2019
Lextar Electronics Corporation, Hsinchu, TW;
Chi Lee, Hsinchu, TW;
Mu-Huai Fang, Hsinchu, TW;
Ru-Shi Liu, Hsinchu, TW;
Yi-Ting Tsai, Hsinchu, TW;
Tzong-Liang Tsai, Hsinchu, TW;
Yu-Chun Lee, Hsinchu, TW;
LEXTAR ELECTRONICS CORPORATION, Hsinchu, TW;
Abstract
An infrared emitting fluoride phosphor and an infrared light emitting device are provided. The infrared emitting fluoride phosphor includes an activation center of Cr. The infrared light emitting device includes a light source and the infrared emitting fluoride phosphor. The light source is disposed to emit a first light, and the first light has a wavelength of 400-700 nm. The infrared emitting fluoride phosphor is configured to be excited by the first light to emit a first infrared ray. The first infrared ray has a wavelength of 650-1000 nm. The infrared light emitting device has a broad emission wavelength, such that it can be applied in variety of sensing device.