Plano-Convex Lens, N-BK7, 25.4 mm Diameter, 100 mm EFL, 400-700 nm

Specifications

  • Lens Shape
    Plano-Convex
  • Diameter
    25.4 mm
  • Lens Material
    N-BK7
  • Antireflection Coating
    400-700 nm
  • Coating Type
    Visible Single-Layer MgF2
  • Coating Code
    -C
  • Damage Threshold
    7 J/cm², 10 ns pulses, 20 Hz at 532 nm
  • Surface Quality
    40-20 scratch-dig
  • Surface Accuracy, Irregularity
    λ/4
  • Surface Accuracy, Power
    1.5 λ  
  • F/#
    3.9  
  • Effective Focal Length (EFL)
    100 mm  
  • Back Focal Length (BFL)
    96.97 mm  
  • Radius of Curvature (R)
    51.680 mm  
  • Edge Thickness (T<sub>e</sub>)
    3.0 mm  
  • Center Thickness (T<sub>c</sub>)
    4.585 mm  
  • Principal Plane 2 (P<sub>2</sub>)
    -3.02 mm  
  • Design Wavelength
    589 nm
  • Centration
    ≤3 arc min
  • Chamfers
    0–0.8 mm face width
  • Chamfers Angle/Tolerance
    45° ±15°, typical
  • Focal Length Tolerance
    ±1 %
  • Diameter Tolerance
    +0/-0.1 mm
  • Center Thickness Tolerance
    ±0.1 mm
  • Clear Aperture
    ≥central 90% of diameter
  • Cleaning
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