# 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: 3.080799 0.01530035 2 0.06350134 -2 -0.002963535 -4 0.0006026374 -6 -1.590891e-05 -8
  - type: tabulated k
    data: |
        0.360 6.3234E-06
        0.370 2.6252E-06
        0.380 1.3495E-06
        0.390 8.1115E-07
        0.400 5.1731E-07
        0.420 2.4615E-07
        0.440 1.3201E-07
        0.460 7.3953E-08
        0.480 4.2250E-08
        0.500 2.3945E-08
        0.550 4.3790E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 5.5732E-09
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    nd: 1.805182
    Vd: 25.443058
    glass_code: 805254
    glass_status: preferred
    density: 5.18 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 9e-06 K<sup>-1</sup>
    dPgF: 0.0085
