Fused Sillica Optical Windows

Fused Sillica Optical Windows
Windows are applied to isolate different physical environments while allowing light to pass.When selecting windows you should consider materials,transmisson,scattering, wavefront distortion,parallelism and resistance to certain environment.DND-OPTICS offers a wide range of different materials and different degree of precision windows.

Materials:BK7,UV Fused silica,CaF2,BaF2 typically,also Borofloat 33,Pyrex.Other glasses are available according to customers' requirement.

*Fused silica is formed by chemical combination of silicon and oxygen. Advantages of fused silica material include good UV and IR transmission, low thermal expansion, providing stability and resistance to thermal shock over large temperature excursions, wider thermal operating range and high laser damage threshold. Used for windows, lenses, prisms and mirror substrates.

Specifications:
Material:UV grade Fused Silica
Dimension Tolerance:+0.0, -0.1mm
Thickness Tolerance:± 0.1mm
Surface quality:60/40(Standard), 10/5(High Precision)
Clear Aperture:>85%
Flatness:λ(Standard), λ/10(High Precision) per 25mm@633nm
Parallelism:1' (Standard), 10