Diameter Tolerance | +0.0/-0.1 mm or as required |
Substrate | UV Fused Silica or as required |
Substrate Thickness | 1.5 mm (0.06") or as required |
Surface Flatness | λ at 633 nm or as required |
Surface Quality | 60-40 Scratch-Dig or as required |
OD of Chrome Coating (Typ.) | 3 at 633 nm or as required |