Fused silica window

Material used for this part : CORNING HPFS  (High Purity Fused Silica).

Available glass codes : 7980, 7979, 8655.  Ideal for big dimensions fused silica parts.

Low birefringence (<5 nm/cm) and high transmission from UV-A to IR.

As for all fused silica materials, the thermal expansion coefficient are very low.