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BK7 Precision Windows, 75mm Dia, 8mm Thick,  1/4 wave, Ravg ≤0.5% @ 630-1100nm

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Part NumberCWP-7508 NIR1
Diameter (mm):75Diameter Tolerance (mm):+0.00/-0.10
Length / width  (mm):
L/D Tolerance (mm):
Center Thickness CT (mm):8Center Thickness Tolerance (mm):±0.1
Substrate:N-BK7 or Equivalent       Surface Quality:40-20
Flatness @ 632.8nm: λ/4Parallelism< 30 Arc Seconds
Clear Aperture CA (mm):>= 90% Bevel: Protective bevel as needed
Coating:NIR 0° (630-1100nm)Coating Specification:Ravg ≤0.5% @ 630-1100nm
Wavelength Range (nm):630-1100nmType:BK7 Precision Windows