LIGHT EMITTING DEVICE AND ELECTRONIC APPARATUS USING SAME
Provided is a light emitting device 1 including a light source 2 that emits primary light 6; and a wavelength converter 3 that includes a first phosphor 4 that absorbs the primary light 6 and emits first wavelength-converted light 7, wherein the light emitting device 1 emits output light 15 includin...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English French German |
Published |
20.12.2023
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Provided is a light emitting device 1 including a light source 2 that emits primary light 6; and a wavelength converter 3 that includes a first phosphor 4 that absorbs the primary light 6 and emits first wavelength-converted light 7, wherein the light emitting device 1 emits output light 15 including the first wavelength-converted light 7, the first wavelength-converted light 7 is near-infrared light having a fluorescence intensity maximum value within a wavelength range of 700 nm or more and less than 800 nm, the first wavelength-converted light 7 mainly contains a broad fluorescent component 31 based on an electron energy transition of 4T2 → 4A2 of Cr34, and the broad fluorescent component 31 has a fluorescence spectrum half-width that is less than 100 nm. |
---|---|
Bibliography: | Application Number: EP20210829347 |