We can provide customized Optical Window. The optical windows also can be coated to meet your specific requirements. Optical Window:We can provide customized Optical Window. The optical windows also can be coated to meet your specific requirements.MaterialBorofloat33, B270, BK7, Fused Silica UV grade, Soda Lime GlassSizeΦ2 -Φ50mmDimension tolerance± 0.1mmSurface quality40/20, 60/40Flatness1/4 λ ...