Appotronics Corporation Limited

Yangang Wang

Qian Li

Yi Li

Yanzheng Xu

Fei Hu

Yusan Chen

Yingying Liu

Shuai Jian

A multiphase fluorescent ceramic and a preparation method therefor. Spinel is provided in a multiphase fluorescent ceramic including 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.

Multiphase fluorescent ceramic and preparation method thereof

A light reflecting material, a reflecting layer and a preparation method therefor; the light reflecting material comprises glass powder particles (), diffuse reflection particles, ultra-fine nano particles and an organic carrier; the particle size of the glass powder particles () is ≤5 μm, the particle size of the diffuse reflection 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 (), diffuse reflection 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.

Light reflecting material, reflecting layer and preparation method therefor

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.

Wavelength conversion device and light source system

Provided is a wavelength conversion apparatus that includes a metal substrate; and a light-emitting ceramic layer. The light-emitting ceramic layer is used for absorbing excitation light and emitting excited light having a wavelength different from that of the excitation light. A metal reflective layer and a silica gel layer are stacked between the metal substrate and the light-emitting ceramic layer, and the reflective layer is used for reflecting the excited light and an unconverted part of the excitation light. The wavelength conversion device can reduce heat generated in the wavelength conversion apparatus, while realizing an aim of emitting excited light having a high illumination intensity in the wavelength conversion apparatus.

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Shenzhen, China

Yangang Wang