公开(公告)号：US20220154068A1

公开(公告)日：2022-05-19

申请号：US17423092

申请日：2019-12-23

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Qian LI ,  Shuai JIAN ,  Yangang WANG ,  Yi LI

IPC: C09K11/02 ,  C09K11/77 ,  C04B35/117 ,  C04B35/64 ,  C04B35/638 ,  C04B35/626

Abstract: A multiphase fluorescent ceramic and a preparation method therefor. Spinel is provided in a multiphase fluorescent ceramic comprising an alumina matrix and fluorescent particles, the spinel is distributed between alumina grain boundaries, and the exciting light irradiated into the multiphase fluorescent ceramic can be scattered, thereby facilitating further improvement in the luminous efficiency of the multiphase fluorescent ceramic.

公开(公告)号：US20220029382A1

公开(公告)日：2022-01-27

申请号：US17312904

申请日：2019-11-18

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Qian LI ,  Yingying LIU ,  Yangang WANG ,  Yi LI

IPC: H01S5/06 ,  H01S5/10

Abstract: A wavelength conversion device and a light source system, including: a substrate; a first light-emitting portion disposed on the substrate, wherein the first light-emitting portion includes a first light guide area and a counterweight area provided on the same layer as the first light guide area, the first light guide area being used for guiding first light, and the counterweight area being used for making the weight distribution of the wavelength conversion device substantially uniform; and a second light-emitting portion provided on the substrate on the same side as the first light-emitting portion, the second light-emitting portion including a conversion area, and the conversion area being used to convert at least a part of excitation light into excited light for emission when the excitation light is received.

公开(公告)号：US20180158995A1

公开(公告)日：2018-06-07

申请号：US15570441

申请日：2016-04-29

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Qian LI ,  Yusan CHEN ,  Yangang WANG ,  Yanzheng XU

IPC: H01L33/50 ,  H01L33/46 ,  G02B26/00 ,  G02F1/23

CPC classification number: H01L33/504 ,  G02B26/008 ,  G02F1/23 ,  H01L33/46 ,  H01L33/501 ,  H01L33/502 ,  H01L33/507 ,  H01L33/644

Abstract: A wavelength converter is provided. The wavelength converter comprises a light emitting-reflecting layer, and the light emitting-reflecting layer comprises a wavelength converting material, aluminum oxide, titanium oxide and an adhesive, which not only reduces the heat generated by the light propagation in the light emitting-reflecting layer, but also improves the density and heat dissipation performance of the wavelength converter. Thus, the wavelength converter is more applicable to a high-power excitation light source. A fluorescent color wheel and a light-emitting device comprising the wavelength converter are also provided.

公开(公告)号：US20210389512A1

公开(公告)日：2021-12-16

申请号：US17279975

申请日：2019-08-14

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Qian LI ,  Yusan CHEN ,  Yangang WANG ,  Yanzheng XU

IPC: G02B5/02 ,  C03C11/00

Abstract: A light reflecting material, a reflecting layer and a preparation method therefor; the light reflecting material comprises glass powder particles (1), diffuser particles, ultrafine nano particles and an organic carrier; the particle size of the glass powder particles (1) is ≤5 μm, the particle size of the diffuser particles is 0.1 μm to 0.2 μm, and the particle size of the ultra-fine nano particles is 0.01 μm to 0.05 μm. The glass powder particles (1), diffuser particles and ultra-fine nano particles the particle sizes of which decrease progressively in sequence by one order of magnitude are used as the raw materials of the reflecting layer, without deceasing the adhesion between the reflecting layer and a substrate, the surface area within the reflecting layer that may cause reflection or refraction is increased to obtain better reflectivity.