Gold Mirror, Economy, Borofloat, 50.8 mm, λ/10, 650-20,000 nm

Technical Specs

  • Wavelength Region
    Broadband
  • Wavelength Range
    650-20000 nm
  • Mirror Shape
    Round
  • Diameter
    50.8 mm  
  • Mirror Size
    Ø50.8 mm
  • Thickness
    12.7 mm  
  • Material
    Borofloat® 33
  • Coating Type
    Protected Gold
  • Coating Code
    ER.4
  • Surface Quality
    40-20 scratch-dig
  • Surface Flatness
    λ/10 at 632.8 nm
  • Angle of Incidence
    0-45°
  • Clear Aperture
    ≥central 80% of diameter
  • Back Surface
    Ground
  • Reflectivity
    Ravg>96%, Rmin>92% @ 650-1700 nmRavg>98%, Rmin>96% @ 1.7-20 µm
  • Damage Threshold
    0.5 J/cm², 10 ns pulses , 20 Hz at 1064 nm
  • Diameter Tolerance
    +0/-0.13 mm
  • Thickness Tolerance
    ±0.25 mm
  • Chamfers
    0.38–1.14 mm face width
  • Chamfers Angle Tolerance
    45° ±15°
  • Cleaning