# 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: 3.167451 -0.02220547 2 0.02630248 -2 0.004028856 -4 -0.0004018775 -6 2.821967e-05 -8
  - type: tabulated k
    data: |
        0.360 1.3193E-05
        0.370 5.2173E-06
        0.380 2.3482E-06
        0.390 1.1516E-06
        0.400 6.3169E-07
        0.420 2.6418E-07
        0.440 1.4293E-07
        0.460 8.8925E-08
        0.480 5.3854E-08
        0.500 3.5972E-08
        0.550 2.1939E-08
        0.600 1.4345E-08
        0.650 1.0355E-08
        0.700 5.5732E-09
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    nd: 1.806100
    Vd: 33.267264
    glass_code: 806333
    glass_status: preferred
    density: 4.62 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 7.5e-06 K<sup>-1</sup>
    dPgF: -0.0004
