Yellow Ceramic Laser Reflectors
The ceramic laser reflector body is prepared by doping 99% Al2O3, and the body is fired at an appropriate temperature to retain appropriate porosity and strength. Plating yellow glaze on the outside of the ceramic laser reflector to make the ceramic focusing cavity in the main absorption band of the solid-state laser, exhibiting high reflectivity; At the same time, in the ineffective absorption band, it exhibits the function of reducing reflectivity. As a comparison, the diffuse reflection ceramic focusing cavity has high reflectivity in the non absorption band ultraviolet band of the laser crystal, but cannot effectively filter out ultraviolet light that produces harmful color centers to the laser crystal. Highly reflective and UV absorbing ceramic glazes can significantly improve the shortcomings of ordinary ceramic focusing cavities, with characteristics such as resistance to strong laser irradiation, high insulation, corrosion resistance, easy cleaning, and UV absorption.
Main Physical Characteristics
Parameters
|
Value
|
Material
|
Alumina ceramic
|
Purity
|
99%
|
Color
|
Yellow
|
Bulk Density (fired)
|
3.1g/cm3
|
Porosity
|
22%
|
Surface Treatment
|
Non-glazed, Semi-glazed, Glazed, Yellow glazed
|
Bending Strength
|
170MPa
|
Thermal expansion coefficient
|
7.9×10-6/C (200-500℃)
9×10-6/C (200~1000℃)
|
Thermal shock resistance
|
No crack when temperature from 15-100℃ for 150 times
|
Product Features
• Easy to produce
• Low production cost
• Large size
• Multi-functionality
• Mass production
• UV cut-off
Compared with white glaze, yellow glaze Ceramic Laser Reflectors has the function of absorbing ultraviolet radiation, which can improve the service life of crystals. The temperature of the crystal will not be too high, and ultraviolet radiation will be absorbed by the ceramic core. In the ultraviolet band, the reflectivity decreases by about 50% compared to the wavelength corresponding to white glaze.
Spectrum of Reflectivity (Yellow Ceramic Laser Reflectors)
Main Applications
• Laser Welding Machine,
• Laser Cutting Machine,
• Laser Marking Machine,
• Medical Laser System