Narrowband Beamsplitter PlatesSpecifications:Material: BK7 grade A optical glass Dimension Tolerance: +/-0.2mmThinkness Tolerance: +/-0.2mmClear Aperture: >85% of diameterParallelism: <1 arc minuteSurface Quality: 60-40 scratch and digFlatness: lambda/4 per 25mm at 632.8nmT/R: 50/50+/-5%, for natrual light, T=(Ts+Tp)/2, R=(Rs+Rp)/2Coatings: incidence angle 45deg,S1: Single wavelength partial reflectance, S2: "V" AR-coatings Broadband Beamsplitter PlatesSpecifications:Material: BK7 grade A optical glass Dimension Tolerance: +/-0.2mmThinkness Tolerance: +/-0.2mmClear Aperture: >85% of diameterParallelism: <1 arc minuteSurface Quality: 60-40 scratch and digFlatness: lambda/4 per 25mm @632.8nmT/R: 50/50+/-5%, for natrual light, T=(Ts+Tp)/2, R=(Rs+Rp)/2Coatings:incidence angle 45deg,S1: Broadband partial reflectance, S2: BBAR-coatings