WAVELENGTH CONVERSION DEVICE, MANUFACTURING METHOD THEREOF, AND RELATED ILLUMINATION DEVICE

摘要

A wavelength conversion device, a manufacturing method thereof, and a related illumination device. The wavelength conversion device comprises a fluorescent powder layer (110) that is successively stacked, a diffuse reflection layer (120), and a high-thermal-conductivity substrate (130). The diffuse reflection layer (120) comprises white scattered particles for scattering the incident light; the high-thermal-conductivity substrate (130) is one of an aluminum nitride substrate, a silicon nitride substrate, a silicon carbide substrate, a boron nitride substrate, and a beryllium oxide substrate. The wavelength conversion device has good reflectivity and thermal stability.

主权项

1. A wavelength conversion device, comprising:
a phosphor layer, which includes a phosphor powder; a diffuse reflection layer, which includes white scattering particles for scattering an incident light; and a high thermal conductivity substrate, which is selected from: an aluminum nitride substrate, a silicon nitride substrate, a silicon carbide substrate, a boron nitride substrate, and a beryllium oxide substrate; wherein the phosphor layer, the diffuse reflection layer and the high thermal conductivity substrate are stacked sequentially and affixed to each other.