# 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/ohara_2017-11-30.agf\">OHARA Zemax catalog 2017-11-30</a> (obtained from <a href=\"http://www.ohara-inc.co.jp/en/product/optical/list/\">http://www.ohara-inc.co.jp</a>)<br>See also <a href=\"http://refractiveindex.info/download/data/2017/ohara_2017-11-30.pdf\">OHARA glass data sheets</a>"
COMMENTS: ""
DATA:
  - type: formula 3 
    wavelength_range: 0.365 0.9
    coefficients: 2.266208 -0.008895249 2 0.01260385 -2 0.0003758541 -4 -1.385868e-05 -6 1.28332e-06 -8
  - type: tabulated k
    data: |
        0.340 1.6166E-07
        0.350 8.1965E-08
        0.360 4.6207E-08
        0.370 3.5546E-08
        0.380 2.7339E-08
        0.390 1.5557E-08
        0.400 1.2758E-08
        0.420 1.3396E-08
        0.440 1.4034E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        0.900 1.1468E-08
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 8.9983e-07 0.0 0.0 0.0 0.0 0.0
    nd: 1.517417
    Vd: 52.412251
    glass_code: 517524
    glass_status: preferred
    density: 2.66 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 7.6e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 8.7e-06 K<sup>-1</sup>
    dPgF: -0.002
