公开(公告)号：US11879084B2

公开(公告)日：2024-01-23

申请号：US17103972

申请日：2020-11-25

Applicant: Lextar Electronics Corporation

Inventor： Chun-Che Lin ,  Chun-Han Lu ,  Yi-Ting Tsai ,  Yu-Chun Lee ,  Tzong-Liang Tsai

IPC: C09K11/71 ,  C09K11/08 ,  C09K11/77 ,  H01L33/50

CPC classification number: C09K11/717 ,  H01L33/502

Abstract: In the present disclosure embodiments, a phosphate phosphor including an activation center of trivalent chromium and a light emitting device are provided. The light emitting device includes a light source and the above mentioned phosphate phosphor, such that the phosphate phosphor is excited by the light source and emits a wide spectrum of the infrared light. The light emitting device with wide emission spectrum of the infrared light may be widely applied in detecting devices.