# 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 3 
    wavelength_range: 0.3 2.4
    coefficients: 2.3302166 -0.0085474969 2 0.014788612 -2 0.00048017066 -4 -1.9221577e-05 -6 2.1710005e-06 -8
  - type: tabulated k
    data: |
        0.310 4.3712E-06
        0.320 1.2173E-06
        0.330 3.9607E-07
        0.340 1.4734E-07
        0.350 6.1959E-08
        0.360 3.4585E-08
        0.370 2.3650E-08
        0.380 2.1242E-08
        0.390 1.2439E-08
        0.400 9.5636E-09
        0.420 1.3396E-08
        0.440 1.4034E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    nd: 1.540720
    Vd: 47.233680
    glass_code: 541472
    glass_status: preferred
    density: 2.86 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 8.8e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 1.04e-05 K<sup>-1</sup>
    dPgF: -0.0019
    acid_resistance: 1.0
    phosphate_resistance: 1.0
