# 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 "
DATA:
  - type: formula 2 
    wavelength_range: 0.36 2.4
    coefficients: 0 1.83145156 0.0122443139 0.287818024 0.057387731 2.152083 186.099124
  - type: tabulated k
    data: |
        0.360 9.2214E-06
        0.370 3.1764E-06
        0.380 1.3972E-06
        0.390 7.7111E-07
        0.400 4.8008E-07
        0.420 2.3896E-07
        0.440 1.5024E-07
        0.460 1.1150E-07
        0.480 8.4972E-08
        0.500 6.8222E-08
        0.550 3.5155E-08
        0.600 2.3933E-08
        0.650 2.5928E-08
        0.700 1.6736E-08
        0.800 1.2745E-08
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 3.3473E-08
        1.600 5.1032E-08
        1.800 1.2950E-07
        2.000 2.4054E-07
        2.200 5.5131E-07
        2.400 1.1209E-06
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 1.02e-06 7.99e-09 -1.8e-11 9.25e-07 1.17e-09 0.276
    nd: 1.799999
    Vd: 29.844688
    density: 3.68 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 8.2e-06 K<sup>-1</sup>
    dPgF: 0.0085
    climatic_resistance: 2.0
    acid_resistance: 1.0
    phosphate_resistance: 1.0
