公开(公告)号：US20210384387A1

公开(公告)日：2021-12-09

申请号：US17412258

申请日：2021-08-26

申请人： Bridgelux, Inc.

发明人： Tao Xu ,  Aaron Merrill ,  Yi-Qun Li

IPC分类号： H01L33/50 ,  H01L25/075 ,  H01L33/58

摘要： A white light emitting device may include a substrate, first LEDs disposed on the substrate, a first photoluminescence material disposed over the first LEDs, second LEDs disposed on the substrate, where the first LEDs and the second LEDs emit blue light at substantially the same wavelength, a second photoluminescence material disposed over the second LEDs, the second photoluminescence material having a composition different from the first photoluminescence material, where an emission product of the white light emitting device is a combination of light emitted from (i) a combination of the first LEDs and the first photoluminescence material, and (ii) a combination of the second LEDs and the second photoluminescence material, and a dimming control connected to the first LEDs and to the second LEDs; where the dimming control is actuable to modify the emission product.

公开(公告)号：US20230352636A1

公开(公告)日：2023-11-02

申请号：US18217802

申请日：2023-07-03

申请人： Bridgelux, Inc.

发明人： Tao Xu ,  Aaron Merrill ,  Yi-Qun Li

IPC分类号： H01L33/50 ,  H01L25/075 ,  H01L33/58

CPC分类号： H01L33/504 ,  H01L25/0753 ,  H01L33/58

摘要： An exemplary white light emitting device includes a plurality of LEDs disposed on a substrate, where the LEDs emit blue light at substantially the same correlated color temperature; a first photoluminescence material layer disposed over a first subset of the LEDs; a second photoluminescence material layer disposed over a second subset of the LEDs different from the first subset of the plurality of LEDs, the second photoluminescence material layer separate from the first photoluminescence material layer; and a diffusing layer separate from and disposed over the first and second photoluminescence layers, where the diffusing layer is associated with a plurality of light scattering particles.

公开(公告)号：US20200287101A1

公开(公告)日：2020-09-10

申请号：US16293176

申请日：2019-03-05

申请人： Bridgelux, Inc.

发明人： Tao Xu ,  Aaron Merrill ,  Yi-Qun Li

IPC分类号： H01L33/50 ,  H01L25/075 ,  H01L33/58

摘要： There is provided a white light emitting device comprising a first LED and a second LED disposed on a substrate, a first photoluminescence material layer disposed over at least said first LED, a second photoluminescence material layer disposed over at least said second LED, and a diffusing layer disposed over said first and second photoluminescence layers, said diffusing layer comprising light scattering particles. A method and component are also provided.

公开(公告)号：US11705543B2

公开(公告)日：2023-07-18

申请号：US17412258

申请日：2021-08-26

申请人： Bridgelux, Inc.

发明人： Tao Xu ,  Aaron Merrill ,  Yi-Qun Li

IPC分类号： H01L25/075 ,  H01L33/50 ,  H01L33/58

CPC分类号： H01L33/504 ,  H01L25/0753 ,  H01L33/58

摘要： A white light emitting device may include a substrate, first LEDs disposed on the substrate, a first photoluminescence material disposed over the first LEDs, second LEDs disposed on the substrate, where the first LEDs and the second LEDs emit blue light at substantially the same wavelength, a second photoluminescence material disposed over the second LEDs, the second photoluminescence material having a composition different from the first photoluminescence material, where an emission product of the white light emitting device is a combination of light emitted from (i) a combination of the first LEDs and the first photoluminescence material, and (ii) a combination of the second LEDs and the second photoluminescence material, and a dimming control connected to the first LEDs and to the second LEDs; where the dimming control is actuable to modify the emission product.

公开(公告)号：US11164999B2

公开(公告)日：2021-11-02

申请号：US16293176

申请日：2019-03-05

申请人： Bridgelux, Inc.

发明人： Tao Xu ,  Aaron Merrill ,  Yi-Qun Li

IPC分类号： H01L33/00 ,  H01L33/50 ,  H01L25/075 ,  H01L33/58

摘要： There is provided a white light emitting device comprising a first LED and a second LED disposed on a substrate, a first photoluminescence material layer disposed over at least said first LED, a second photoluminescence material layer disposed over at least said second LED, and a diffusing layer disposed over said first and second photoluminescence layers, said diffusing layer comprising light scattering particles. A method and component are also provided.