1. Products
  2. Optics
  3. Optical Lenses
  4. Plano-Convex Lenses
  5. N-BK7 Plano-Convex Lenses
  6. Uncoated N-BK7 Plano-Convex Lenses
  7. KPX340

Plano-Convex Lens, N-BK7, 12.0 mm Diameter, 20 mm EFL, Uncoated

  • Lens Shape
    Plano-Convex
  • Diameter
    12.0 mm
  • Lens Material
    N-BK7
  • Antireflection Coating
    Uncoated
  • Surface Quality
    60-40 scratch-dig
  • F/#
    1.7  
  • Effective Focal Length (EFL)
    20.0 mm  
  • Back Focal Length (BFL)
    17.40 mm  
  • Radius of Curvature (R)
    10.374 mm  
  • Edge Thickness (Te)
    2.0 mm  
  • Center Thickness (Tc)
    3.90 mm  
  • Principal Plane 2 (P2)
    -2.60 mm  
  • Centration
    ≤3 arc min
  • Clear Aperture
    ≥central 90% of diameter
  • Cleaning
    See How to Clean Optics
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