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Quartz, Optical glass, Fluorite, Single crystal

What is glass

glass

Glass is a hard transparent material whose main component is silicate and carbonate.
Main component is SiO2 and the percentage of it vary on forms of glass and behavior of glass largely depends on the composition. Refractive index is between 1.45 and 1.96, gravity is from 2.2 to 6.3, liner coefficient of expansion is
0.5 x 10-6 to 20×10-6/K, Young module is 5×104 to
9×104MPa and Mohs hardness is 5 to 7.

Material used for optics parts is referred as optics material and the most widely used optics glass is higher quality than other glass and it needs to have demand refractive index, and striae and air are over certain standard.

Material introduction

Quartz

・Optical fused silica
・Semiconductor quartz

Quartz

Optical glass

 

Optical glass
   

Fluorite

 

Fluorite

Single Crystal


・Sapphire, Magnesia
・sodium chloride etc

 

Single Crystal

 


Transparent wavelength range.

nd-νd