1. N-BK7 Plano-Convex Lenses
  2. KPX379-C

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Plano-Convex Lens, N-BK7, 20.0 mm Diameter, 40 mm EFL, 400-700 nm

Model: KPX379-C

Plano-Convex Lens, N-BK7, 20.0 mm Diameter, 40 mm EFL, 400-700 nm

Plano-Convex Lens, N-BK7, 20.0 mm Diameter, 40 mm EFL, 400-700 nm

Model: KPX379-C

Technical Specs

  • Lens Shape
    Plano-Convex
  • Diameter
    20.0 mm
  • Lens Material
    N-BK7
  • Antireflection Coating
    400-700 nm
  • Coating Type
    Visible Single-Layer MgF2
  • Coating Code
    -C
  • Surface Quality
    60-40 scratch-dig
  • Surface Flatness
    λ/4
  • F/#
    2  
  • Effective Focal Length (EFL)
    40.0 mm  
  • Back Focal Length (BFL)
    37.00 mm  
  • Radius of Curvature (R)
    20.749 mm  
  • Edge Thickness (Te)
    1.9 mm  
  • Center Thickness (Tc)
    4.50 mm  
  • Principal Plane 2 (P2)
    -3.00 mm  
  • Centration
    ≤3 arc min
  • Clear Aperture
    ≥central 90% of diameter
  • Cleaning
    See How to Clean Optics

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