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T-LF5414-E - Ø1" CaF2 Negative Meniscus Lens, f = -50.0 mm, AR-Coated: 2 - 5 µm

Fosco Connect Part No.: T-LF5414-E

  • $ 655.00 or



T-LF5414-E - Ø1" CaF2 Negative Meniscus Lens, f = -50.0 mm, AR-Coated: 2 - 5 µm

Product Drawing

  • Vacuum-Grade Calcium Fluoride Substrate
  • Ø1/2" and Ø1" Versions Available
  • Broadband AR Coating for the 2 - 5 μm Range
  • Focal Lengths from -20.0 mm to -1000.0 mm
  • Diameter 1" (25.4 mm)
  • Focal Length -50.0 mm
  • Diopter -20.0
  • Radius of Curvature 1 68.5 mm
  • Radius of Curvature 2 15.5 mm
  • Center Thickness 4.0 mm
  • Edge Thickness 9.4 mm
  • Back Focal Length -49.2 mm
  • AR Coating <1.25% Ravg from 2 - 5 μm
  • Reference Drawing Click to see
  • AR Coating Range 2 - 5 μm
    Reflectance over
    AR Coating Range @ 0° AOI
    Ravg < 1.25%
    Diameters Available 1/2" or 1"
    Diameter Tolerance +0.00/-0.10 mm
    Thickness Tolerance ±0.1 mm
    Focal Length Tolerance ±2%
    Surface Quality 40-20 (Scratch-Dig)
    Spherical Surface Power 3λ/2
    Spherical Surface Irregularity
    (Peak to Valley)
    λ/2
    Centration <3 arcmin
    Clear Aperture >90% of Diameter
    Design Wavelength 4 μm
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