We can make all kinds of polarizing beam splitters according to your requirements Incident angle: 19±5°Surface quality: 60/40Parallelism(): ±3°Coupling Ratio82,73 Wavelength: 640-670nmT/R Ratio 50/50±5,for random polarization T= (Ts+ Tp)/2, R=(Rs+ Rp)/2Beam Deviation: <3 arc minutes telescope lens