# 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 2 
    wavelength_range: 0.3 2.4
    coefficients: 0 1.264742 0.007911881 0.189784 0.03806705 1.105094 133.8316
  - type: tabulated k
    data: |
        0.310 6.5601E-06
        0.320 2.0334E-06
        0.330 7.2069E-07
        0.340 3.1530E-07
        0.350 1.7234E-07
        0.360 1.0503E-07
        0.370 7.4545E-08
        0.380 4.8774E-08
        0.390 3.4328E-08
        0.400 2.2360E-08
        0.420 2.0114E-08
        0.440 1.7551E-08
        0.460 1.0998E-08
        0.480 7.6471E-09
        0.500 3.9809E-09
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 5.5732E-09
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 7.6702E-08
        1.400 6.7046E-08
        1.600 2.7023E-07
        1.800 5.4004E-07
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 3.1992e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.582673
    Vd: 46.423092
    glass_code: 583464
    glass_status: preferred
    density: 3.18 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 8.1e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 9.2e-06 K<sup>-1</sup>
    dPgF: -0.0003
    acid_resistance: 1.2
    phosphate_resistance: 2.0
