Plano-Convex Lens, Calcium Fluoride, 25.4 mm, 50 mm FL, 180-8000 nm

Technical Specs

  • Lens Shape
    Plano-Convex
  • Diameter
    25.4 mm
  • Lens Material
    CaF2
  • Antireflection Coating
    Uncoated
  • Surface Quality
    40-20 scratch-dig
  • Surface Accuracy, Irregularity
    λ/4 at 633 nm
  • F/#
    1.97  
  • Effective Focal Length (EFL)
    50.0 mm  
  • Radius of Curvature (R)
    20.912  
  • Center Thickness (Tc)
    5.110 mm  
  • Design Wavelength
    2.94 µm
  • Centration
    ≤3 arc min
  • Diameter Tolerance
    +0/-0.12 mm
  • Center Thickness Tolerance
    ±0.12 mm
  • Clear Aperture
    ≥central 90% of diameter

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