# 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: 0.35 2.4
    coefficients: 0 1.32940907 0.0102377287 0.141512125 0.0578081956 1.44299068 150.597139
  - type: tabulated k
    data: |
        0.350 8.9652E-06
        0.360 2.4178E-06
        0.370 6.2044E-07
        0.380 2.0647E-07
        0.390 8.4947E-08
        0.400 5.1341E-08
        0.420 3.6968E-08
        0.440 3.5190E-08
        0.460 3.3094E-08
        0.480 3.0681E-08
        0.500 2.3945E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 2.0732E-08
        0.700 2.2326E-08
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 4.4653E-08
        1.600 7.6624E-08
        1.800 1.5844E-07
        2.000 2.0826E-07
        2.200 7.3292E-07
        2.400 9.1941E-07
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -5.29e-06 1.4e-08 -4.19e-11 6.9e-07 8.13e-10 0.287
    nd: 1.592701
    Vd: 35.310075
    glass_code: 593353
    density: 2.64 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 9e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 1e-05 K<sup>-1</sup>
    dPgF: 0.009
    climatic_resistance: 1.0
    acid_resistance: 1.0
    phosphate_resistance: 2.0
