Material: BK7 Grade A Optical Glass
Dimension Tolerance:+/- 0.2mm
Thickness Tolerance: +/- 0.2mm
Flatness:
l/4
@ 632.8 nm per inch
Surface Quality: 60/40 scratch and dig
Parallelism: 1 arc minute
T/R:
50/50+/-5%, for natrual light
T=(Ts+Tp)/2, R=(Rs+Rp)/2
Coatings: (Incidence angle: 45 degree)
S1: Partial Reflectance
S2: AR-coatings