# 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: 0.365 0.9
    coefficients: 2.585926 -0.0114351 2 0.01387296 -2 0.0005169618 -4 -3.768293e-05 -6 2.058449e-06 -8
  - type: tabulated k
    data: |
        0.360 2.5762E-07
        0.370 1.5413E-07
        0.380 9.8348E-08
        0.390 6.9040E-08
        0.400 4.8108E-08
        0.420 3.6968E-08
        0.440 3.5190E-08
        0.460 2.9402E-08
        0.480 2.2987E-08
        0.500 1.5947E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 2.0732E-08
        0.700 1.6736E-08
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 25.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 1.3568e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.620410
    Vd: 60.271913
    glass_code: 620603
    glass_status: preferred
    density: 3.57 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 6.6e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 7.7e-06 K<sup>-1</sup>
    dPgF: -0.0012
