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  2. Optics
  3. Optical Lenses
  4. Plano-Convex Lenses
  5. N-BK7 Plano-Convex Lenses
  6. MgF2 Visible N-BK7 Plano-Convex Lenses
  7. KPX555-C

Plano-Convex Lens, ValuMax, N-BK7, 12.7 mm, 75.6 mm EFL, 400-700 nm

MgF2 Visible N-BK7 Plano-Convex Lenses

Specifications

  • Lens Shape
    Plano-Convex
  • Diameter
    12.7 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
    60-40 scratch-dig
  • Surface Accuracy, Irregularity
    λ/2
  • Surface Accuracy, Power
    2.5 λ  
  • F/#
    5.9  
  • Effective Focal Length (EFL)
    75.6 mm  
  • Back Focal Length (BFL)
    73.28 mm  
  • Radius of Curvature (R)
    39.070 mm  
  • Edge Thickness (T<sub>e</sub>)
    3.0 mm  
  • Center Thickness (T<sub>c</sub>)
    3.51 mm  
  • Principal Plane 2 (P<sub>2</sub>)
    -2.32 mm  
  • Design Wavelength
    546.1 nm
  • Centration
    ≤3 arc min
  • Chamfers
    0.25-0.75 mm
  • Chamfers Angle/Tolerance
    45° ±15°, typical
  • Focal Length Tolerance
    ±2 %
  • Diameter Tolerance
    +0/-0.15 mm
  • Center Thickness Tolerance
    ±0.2 mm
  • Clear Aperture
    ≥central 90% of diameter
  • Cleaning
    See How to Clean Optics

Resources & Downloads

3D Product Models
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