# 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: 3.156117 -0.01727997 2 0.02733369 -2 0.001199918 -4 -6.256744e-05 -6 5.655719e-06 -8
  - type: tabulated k
    data: |
        0.340 1.2460E-05
        0.350 4.7761E-06
        0.360 1.9857E-06
        0.370 9.2662E-07
        0.380 5.2723E-07
        0.390 3.1323E-07
        0.400 2.1393E-07
        0.420 1.1216E-07
        0.440 7.4313E-08
        0.460 4.7899E-08
        0.480 3.4533E-08
        0.500 1.5947E-08
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 1.1152E-08
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    nd: 1.799520
    Vd: 42.242359
    glass_code: 800422
    glass_status: preferred
    density: 4.33 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 7.4e-06 K<sup>-1</sup>
    dPgF: -0.0075
