# 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: 2.3550985 -0.0086952235 2 0.013797477 -2 0.00027607581 -4 9.6025624e-08 -6 6.0765812e-07 -8
  - type: tabulated k
    data: |
        0.310 7.9406E-06
        0.320 2.9824E-06
        0.330 1.2553E-06
        0.340 6.0374E-07
        0.350 3.2457E-07
        0.360 1.5903E-07
        0.370 9.5760E-08
        0.380 7.9663E-08
        0.390 4.6905E-08
        0.400 2.5567E-08
        0.420 2.3478E-08
        0.440 2.8124E-08
        0.460 1.8349E-08
        0.480 1.5310E-08
        0.500 1.1955E-08
        0.550 1.3150E-08
        0.600 1.9137E-08
        0.650 2.5928E-08
        0.700 2.7922E-08
        0.800 3.1911E-08
        0.900 5.0310E-08
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -1.103e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.547393
    Vd: 53.550738
    glass_code: 547536
    glass_status: preferred
    density: 2.82 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 9.2e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 1.06e-05 K<sup>-1</sup>
    dPgF: -0.0006
    acid_resistance: 2.2
    phosphate_resistance: 2.0
