Material:
BK7 Grade A Optical Glass Dimension Tolerance: ¡À0.2mm Surface Quality: 60-40 scratch and dig Beam Deviation: 3 arc minutes Extinction Ratio: > 100:1 Principal Transmittance: Tp >95% and Ts
<1% Principal Reflectance: Rs >99% and Rp
<5% Coatings:
Polarization beamsplitter coating : on hypotenuse
AR coating: R <0.25% per face for 4 faces