Samsung electronics co., ltd. (20240405165). NEAR INFRARED PHOSPHOR AND LIGHT EMITTING DEVICE
NEAR INFRARED PHOSPHOR AND LIGHT EMITTING DEVICE
Organization Name
Inventor(s)
Kyounghoon Kim of Siheung-si (KR)
NEAR INFRARED PHOSPHOR AND LIGHT EMITTING DEVICE
This abstract first appeared for US patent application 20240405165 titled 'NEAR INFRARED PHOSPHOR AND LIGHT EMITTING DEVICE
Original Abstract Submitted
a light emitting device includes a light emitting diode chip configured to emit first light having a peak wavelength of 400 nm to 470 nm; a wavelength conversion material converting a portion of the first light into second light having a peak wavelength of 620 nm to 670 nm; and a near-infrared phosphor configured to convert a portion of the first light into third light having a peak wavelength of 740 nm to 820 nm, wherein the near-infrared phosphor includes a phosphor represented by composition formula caalgao:xcr, where x satisfies 0.1â¤xâ¤0.3 and y satisfies 1 or more, and an emission spectrum of the third light alone has a ratio of an intensity of 690 nm relative to an intensity of 780 nm of 0.3 or less.