# 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="https://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="https://refractiveindex.info/download/data/2017/hikari_2017-04-01.pdf">HIKARI glass data sheets</a>
COMMENTS: |
    Low	Tg	glass
DATA:
  - type: formula 3
    wavelength_range: 0.4 0.7
    coefficients: 2.4871547 -0.0109451454 2 0.0136540989 -2 0.000187911865 -4 1.26085644e-08 -6 2.3976508e-07 -8 -9.97026157e-05 4
  - type: tabulated k
    data: |
        0.280 1.0261E-05
        0.290 6.9134E-06
        0.300 3.8422E-06
        0.310 2.1400E-06
        0.320 1.1766E-06
        0.330 6.5247E-07
        0.340 3.4587E-07
        0.350 2.0512E-07
        0.360 1.1695E-07
        0.370 7.1527E-08
        0.380 5.4927E-08
        0.390 4.0610E-08
        0.400 3.5208E-08
        0.420 3.0216E-08
        0.440 2.8124E-08
        0.460 2.5714E-08
        0.480 2.2987E-08
        0.500 2.3945E-08
        0.550 1.7542E-08
        0.600 2.8734E-08
        0.650 3.1129E-08
        0.700 3.3523E-08
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 2.2304E-08
        1.600 7.6624E-08
        1.800 5.6982E-07
        2.000 4.5199E-07
        2.200 1.6319E-06
        2.400 3.7901E-06
CONDITIONS:
    temperature: 296
PROPERTIES:
    nd: 1.588870
    Vd: 61.151080
    glass_status: preferred
    density:
      - value: 2930
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.6e-06
    dPgF: -0.0031