Concave Metallic Mirror, 50.8 mm, 50 mm Focal Length, 480-20,000 nm

Technical Specs

  • Wavelength Range
    480-20000 nm
  • Mirror Shape
    Concave
  • Diameter
    50.8 mm
  • Effective Focal Length (EFL)
    50 mm
  • F/#
    1
  • Radius of Curvature (R)
    -100 mm
  • Material
    Borofloat® 33
  • Coating Type
    Protected Silver
  • Coating Code
    ER.2
  • Surface Quality
    40-20 scratch-dig
  • Surface Flatness
    λ/4 at 632.8 nm
  • Center Thickness (Tc)
    6.25 mm
  • Angle of Incidence
    0-15°
  • Back Surface
    Fine ground
  • Reflectivity
    Ravg>96%, Rmin>93% @ 480-1100 nm;Ravg>98.5%, Rmin>97% @ 1.1-20 µm
  • Damage Threshold
    1 J/cm² with 10 ns pulses at 1064 nm, 20Hz
  • Edge Thickness (Te)
    9.65 mm
  • Thickness Tolerance
    ±0.25 mm
  • Diameter Tolerance
    +0/-0.13 mm
  • Chamfers
    0.25–0.76 mm face width
  • Chamfers Angle Tolerance
    45° ±15°
  • Wedge
    ≤0.03 mm
  • Cleaning