# 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: "Recommended - High Index "
DATA:
  - type: formula 2 
    wavelength_range: 0.365 2.325
    coefficients: 0 1.89108996 0.0141164499 0.395220126 0.0662834445 2.20492127 148.6807
  - type: tabulated k
    data: |
        0.360 1.0046E-05
        0.370 7.4367E-06
        0.380 2.6961E-06
        0.390 1.0195E-06
        0.400 5.5498E-07
        0.420 2.6418E-07
        0.440 1.8329E-07
        0.460 1.4181E-07
        0.480 1.1241E-07
        0.500 8.4446E-08
        0.550 3.9569E-08
        0.600 2.8734E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
        0.800 1.2745E-08
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 9.5541E-09
        1.400 4.4653E-08
        1.600 8.9440E-08
        1.800 2.3104E-07
        2.000 4.5199E-07
        2.200 1.0089E-06
        2.400 1.6966E-06
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -3.54e-06 1.02e-08 -1.62e-11 9.63e-07 1.37e-09 0.312
    nd: 1.858955
    Vd: 22.728736
    density: 3.71 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 7.6e-06 K<sup>-1</sup>
    dPgF: 0.0237
    climatic_resistance: 1.0
    acid_resistance: 1.0
    phosphate_resistance: 1.0
