公开(公告)号：US10808171B2

公开(公告)日：2020-10-20

申请号：US16261533

申请日：2019-01-29

Applicant: Lextar Electronics Corporation

Inventor： Chi Lee ,  Mu-Huai Fang ,  Ru-Shi Liu ,  Yi-Ting Tsai ,  Tzong-Liang Tsai ,  Yu-Chun Lee

IPC: C09K11/08 ,  H01L33/50 ,  C09K11/00

Abstract: An infrared emitting fluoride phosphor and an infrared light emitting device are provided. The infrared emitting fluoride phosphor includes an activation center of Cr3+. 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.