# 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: 2.27187 -0.008333884 2 0.0119425 -2 0.0001494434 -4 8.303797e-06 -6 -2.694974e-07 -8
  - type: tabulated k
    data: |
        0.300 5.7485E-06
        0.310 1.9698E-06
        0.320 7.3258E-07
        0.330 2.7668E-07
        0.340 9.9199E-08
        0.350 2.7992E-08
        0.360 2.8792E-08
        0.370 2.0683E-08
        0.380 2.4289E-08
        0.390 1.2439E-08
        0.400 3.1847E-09
        0.420 3.3439E-09
        0.440 3.5032E-09
        0.460 3.6624E-09
        0.480 3.8216E-09
        0.500 3.9809E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    nd: 1.518230
    Vd: 58.909268
    glass_code: 518589
    glass_status: preferred
    density: 2.54 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 1.07e-05 K<sup>-1</sup>
    dPgF: -0.0001
