# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: "<a href=\"http://refractiveindex.info/download/data/2017/nikon_2017-11.agf\">NIKON Zemax catalog 2017-11</a> (obtained from <a href=\"http://www.nikon.com/products/glass/lineup/materials/optical/\">http://www.nikon.com</a>)<br>See also <a href=\"http://refractiveindex.info/download/data/2017/hikari_2017-04-01.pdf\">HIKARI glass data sheets</a>"
COMMENTS: ""
DATA:
  - type: formula 3 
    wavelength_range: 0.4 0.7
    coefficients: 2.23377 -0.009387074 2 0.01057538 -2 -3.481847e-05 -4 2.380097e-05 -6 -1.340308e-06 -8
  - type: tabulated k
    data: |
        0.290 3.2934E-06
        0.300 1.4710E-06
        0.310 6.7701E-07
        0.320 3.2553E-07
        0.330 1.6808E-07
        0.340 8.7996E-08
        0.350 4.4924E-08
        0.360 2.0124E-08
        0.370 2.3650E-08
        0.380 2.4289E-08
        0.390 6.2133E-09
        0.400 6.3726E-09
        0.420 1.0042E-08
        0.440 1.4034E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 5.1751E-09
        0.700 -0.0000E+00
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    nd: 1.503780
    Vd: 66.815093
    glass_code: 504668
    glass_status: preferred
    density: 2.46 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 6.4e-06 K<sup>-1</sup>
    dPgF: -0.0018
