IR Beamsplitter, Calcium Fluoride, 50.8 mm, 50R/50T Ratio

Technical Specs

  • Diameter
    50.8 mm
  • Antireflection Coating
    Uncoated
  • Material
    Calcium Fluoride
  • Surface Quality
    60-40 scratch-dig
  • Angle of Incidence
    45°
  • Surface Flatness
    ≤2 λ at 632.8 nm over the clear aperture
  • Cleaning
  • Clear Aperture
    > central 85% of diameter
  • Diameter Tolerance
    +0.00/-0.13 mm
  • Thickness
    2.0 mm  
  • Thickness Tolerance
    ± 0.13 mm
  • Transmission
    50%, independent of polarization
  • Parallelism
    3 arc minutes
  • Wavefront Distortion
    2-8 µm