# 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: 2.27624 -0.009687465 2 0.009233038 -2 0.0003894085 -4 -3.801873e-05 -6 2.069323e-06 -8
  - type: tabulated k
    data: |
        0.370 3.0695E-07
        0.380 2.0647E-07
        0.390 1.4615E-07
        0.400 1.1671E-07
        0.420 1.0525E-07
        0.440 1.1026E-07
        0.460 1.1150E-07
        0.480 1.0063E-07
        0.500 7.6326E-08
        0.550 3.5155E-08
        0.600 1.9137E-08
        0.650 3.1129E-08
        0.700 2.2326E-08
        0.800 2.5516E-08
        0.900 5.0310E-08
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -4.5274e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.517277
    Vd: 69.563190
    glass_status: preferred
    density: 2.59 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 9.6e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 1.15e-05 K<sup>-1</sup>
    dPgF: 0.0034
