公开(公告)号：US20190233723A1

公开(公告)日：2019-08-01

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

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.