Optical glass and ordinary glass difference:
1: the refractive index ND, uneven. Optical glass is a high penetration rate, through the uniform. While the ordinary glass through the uneven and low. Can enlarge after apparent glass per point of transmittance of inhomogeneous deformation, light. Data error and error acquisition image will appear serious data and contour.
2: ordinary glass mostly optical glass recycling and processing, heavy melt after the formation of the ordinary glass, the glass will be more easy to scratch, the bearing capacity will be greatly reduced. The plane is not good. No optical cold processing.
3: glass color appears uneven, serious will appear color distortion.
Optical glass is used on the instrument; ordinary glass for decoration.