It has extremely low thermal expansion coefficient, extremely high temperature resistance, excellent chemical stability, excellent electrical insulation, low and stable ultrasonic delay performance, best ultraviolet spectrum transmission performance, and visible light and near infrared spectrum transmission performance. , and has higher mechanical properties than ordinary glass. Optical glass has excellent spectral characteristics. It transmits both infrared and ultraviolet light. It can be applied to high bay lights, street lights, spotlights, industrial and mining lights.
Optical glass :
1. Material: Optical glass (high borosilicate, K9, BK7, BK270)
2. Light transmission: 95% (97% after coating)
3. Refractive index: 1.474
4. Operating temperature: -50-500 degrees