公开(公告)号：US20220173282A1

公开(公告)日：2022-06-02

申请号：US17254228

申请日：2019-08-22

Applicant: GRIREM ADVANCED MATERIALS CO., LTD

Inventor： Ronghui LIU ,  Yuanhong LIU ,  Xiaoxia CHEN ,  Yuan XUE ,  Xiaole MA

IPC: H01L33/50 ,  C09K11/77

Abstract: An optical device includes an LED chip, a visible-light luminescent material, and a near-infrared luminescent material, wherein a luminous power of light emitted by the near-infrared and visible-light luminescent materials in a band of 650-1000 nm under the excitation of the LED chip is A, and a sum of a luminous power of light emitted by the near-infrared and visible-light luminescent materials in a band of 350-650 nm under the excitation of the LED chip and a luminous power of residual light emitted by the LED chip in the band of 350-650 nm after the LED chip excites the near-infrared and visible-light luminescent materials is B, with B/A*100% being 0.1%-10%. According to the implementation where the optical device employs the LED chip to combine the near-infrared luminescent material and the visible-light luminescent material simultaneously.

公开(公告)号：US20220119704A1

公开(公告)日：2022-04-21

申请号：US17254225

申请日：2019-07-09

Applicant: GRIREM ADVANCED MATERIALS CO., LTD

Inventor： Ronghui LIU ,  Yuanhong LIU ,  Xiaoxia CHEN ,  Xiaole MA ,  Yuan XUE ,  Tongyu GAO

IPC: C09K11/77 ,  H01L33/50 ,  H01L33/26

Abstract: The present invention discloses a red light and near-infrared light-emitting material and a light-emitting device. The red light and near-infrared light-emitting material contains a compound represented by a molecular formula, xA2O3.yIn2O3.bR2O3, wherein the element A is Sc and/or Ga; the element R is one or two of Cr, Yb, Nd or Er and necessarily includes Cr; and 0.001≤x≤1, 0.001≤y≤1, 0.001≤b≤0.2, and 0.001≤b/(x+y)≤0.2. The light-emitting material can be excited by a technically mature blue light source to emit light with a high-intensity wide-spectrum or multiple spectra. Compared with existing materials, the light-emitting material has higher luminescent intensity. The light-emitting device uses an LED chip to combine an infrared light-emitting material and a visible light light-emitting material. In this way, the same LED chip can emit near-infrared light and visible light at the same time, which greatly simplifies the packaging process and reduces the packaging cost.

公开(公告)号：US20210388262A1

公开(公告)日：2021-12-16

申请号：US17254224

申请日：2019-07-09

Applicant: Grirem Advanced Materials Co.,Ltd

Inventor： Xiaoxia CHEN ,  Yuanhong LIU ,  Ronghui LIU ,  Yuan XUE

IPC: C09K11/77 ,  H01L33/50 ,  C01G15/00

Abstract: Disclosed are a red light and near-infrared light-emitting material and a preparation method thereof, and a light-emitting device including the light-emitting material. The red light and near-infrared light-emitting material contains a compound represented by a molecular formula, aSc2O3.Ga2O3.bR2O3, wherein the element R includes one or two of Cr, Ni, Fe, Yb, Nd or Er; 0.001≤a≤0.6; and 0.001≤b≤0.1. The light-emitting material can be excited by a spectrum having a wide wavelength range (ultraviolet light or purple light or blue light) to emit light with a wide spectrum of 650 nm to 1700 nm or multiple spectra, thus having higher light-emitting intensity.

公开(公告)号：US20220411694A1

公开(公告)日：2022-12-29

申请号：US17748789

申请日：2022-05-19

Applicant: GRIREM ADVANCED MATERIALS CO., LTD. ,  Grirem Hi-Tech Co., Ltd. ,  Rare Earth Functional Materials (Xiong'an) Innovation Center Co., Ltd.

Inventor： Ronghui LIU ,  Shaowei QIN ,  Yuanhong LIU ,  Yanfeng LI ,  Xiaoxia CHEN ,  Xiaole MA ,  Yuan XUE

IPC: C09K11/77 ,  C09K11/02 ,  H01L33/50

Abstract: The invention relates to a phosphor with garnet structure and a light-emitting device comprising the phosphor, wherein the phosphor includes the following components in percentage by weight: 38.47-45.19% of Y element, 9.49-22.09% of Al element, 2.06-24.31% of Ga element, 27.3-32.04% of O element, 0.43-1.46% of Ce element. In the phosphor particles, the shortest distance from the surface of one side of the particle to the surface of the opposite side through the centroid of the particle is defined as R, the longest distance is R1, and 5 μm≤R≤40 μm; any distance from the particle surface to the centroid is r, and 0

公开(公告)号：US20220173281A1

公开(公告)日：2022-06-02

申请号：US17254226

申请日：2019-08-22

Applicant: GRIREM ADVANCED MATERIALS CO., LTD

Inventor： Ronghui LIU ,  Yuanhong LIU ,  Yanfeng LI ,  Xiaoxia CHEN ,  Xiaole MA ,  Yuan XUE

IPC: H01L33/50 ,  C09K11/77 ,  H01L33/30 ,  G02B5/20

Abstract: An optical device includes an LED chip, a light absorber and/or visible-light luminescent material, and a near-infrared luminescent material, wherein a luminous power of light emitted by the near-infrared luminescent material and the light absorber and/or visible-light luminescent material in a band of 650-1000 nm under the excitation of the LED chip is A, and a sum of a luminous power of light emitted by the near-infrared and visible-light luminescent materials in a band of 350-650 nm under the excitation of the LED chip and a luminous power of residual light emitted by the LED chip in the band of 350-650 nm after the LED chip excites the near-infrared and visible-light luminescent materials is B, with B/A*100% being 0.1%-10%. According to the implementation where the optical device employs the LED chip to combine the near-infrared luminescent material and the light absorber and/or visible-light luminescent material simultaneously.