*Material: BK7 glass or UV grade fused silica
*Dimension Tolerances: +/-0.1mm
*Angle Tolerance: +/-3 'or 30”
*Clear Aperture: 90%
*Surface Quality:60/40 or 20/10
*Surface Flatness: lambda/8 or lambda/4 at 633nm
*Chamfer:0.3+/-0.1mm
*Coating Optional
Beamsplitter penta/Dispersing/Rhombohedral/ Pyramid prism