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Achromatic Doublet Lens, SK11 & SF5, 8 mm, 25 mm FL, 400-2500 nm

collection of laser line mirrors optimized for specific laser wavelengths

Specifications

  • Lens Type
    Achromatic Doublet
  • Lens Shape
    Plano-Convex
  • Diameter
    8.0 mm
  • Antireflection Coating
    400-700 nm
  • Coating Type
    Visible Single-Layer MgF2
  • Transmission
    T>95% visible, T>92% at 1064 nm
  • Lens Material
    SK11/SF5
  • Surface Quality
    60-40 scratch-dig
  • Surface Flatness
    λ/4
  • Surface Accuracy, Power
    2.5 λ  
  • Effective Focal Length (EFL)
    25.0 mm
  • Back Focal Length (BFL)
    22.6 mm  
  • F/#
    3.1  
  • Radius of Curvature (R)
    16.530 mm  
  • Radius 2
    -10.880 mm
  • Radius 3
    -39.799 mm
  • Edge Thickness (T<sub>e</sub>)
    5.9 mm  
  • Center Thickness (T<sub>c</sub>)
    6.63 mm  
  • Thickness, Center 1
    2.63 mm  
  • Thickness, Center 2
    4.00 mm  
  • Orientation
    Steepest convex surface should face the infinite conjugate
  • Centration
    ≤3 arc min
  • Diameter Tolerance
    +0/-0.15 mm
  • Focal Length Tolerance
    ±2.0%
  • Center Thickness Tolerance
    ±0.4 mm
  • Clear Aperture
    90% of central diameter
  • Cleaning
    See How to Clean Optics

Resources & Downloads

Software