Material

BK7, SF11, UV grade Fused Silica, Si, ZnSe, CaF2,

Size (A=B=C)

1mm to 75mm

Dimension Tolerance

±0.1mm

Angle Tolerance

2 arc seconds to 3 arc minutes

Flatness

λ/2 @ 632.8nm to λ/10 @ 632.8nm per 25mm range

Surface Quality

60/40 to 20/10 scratch and dig

Clear Aperture

>90%

Chamfer

Protective

Coating

No coating, available