# 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: 0.28 2.4
    coefficients: 0 1.93563931 0.0152585289 0.449596478 0.0696815778 2.71828573 170.327149
  - type: tabulated k
    data: |
        0.380 8.5076E-06
        0.390 2.9223E-06
        0.400 1.0902E-06
        0.420 2.9690E-07
        0.440 1.7592E-07
        0.460 1.2662E-07
        0.480 9.6707E-08
        0.500 7.2272E-08
        0.550 3.0745E-08
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 1.1146E-08
        1.600 6.3822E-08
        1.800 2.3104E-07
        2.000 4.6837E-07
        2.200 9.3489E-07
        2.400 1.6966E-06
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -5.24e-06 9.66e-09 -1.5e-11 1.05e-06 1.53e-09 0.321
    nd: 1.892860
    Vd: 20.361810
    density: 3.61 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 7.3e-06 K<sup>-1</sup>
    dPgF: 0.0308
    climatic_resistance: 1.0
    acid_resistance: 1.0
    phosphate_resistance: 1.0
