# 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/schott_2017-01-20b.agf\">SCHOTT Zemax catalog 2017-01-20b</a> (obtained from <a href=\"http://www.schott.com/advanced_optics/english/download/\">http://www.schott.com</a>)<br>See also <a href=\"http://refractiveindex.info/download/data/2017/schott_2017-01-20.pdf\">SCHOTT glass data sheets</a>"
COMMENTS: "         "
DATA:
  - type: formula 2 
    wavelength_range: 0.37 2.5
    coefficients: 0 1.55075812 0.0114338344 0.209816918 0.0582725652 1.46205491 133.24165
  - type: tabulated k
    data: |
        0.370 3.1319E-06
        0.380 1.2026E-06
        0.390 5.7357E-07
        0.400 3.3278E-07
        0.405 2.7165E-07
        0.420 1.7090E-07
        0.436 1.2480E-07
        0.460 9.0600E-08
        0.500 6.0004E-08
        0.546 2.9800E-08
        0.580 2.6029E-08
        0.620 3.3838E-08
        0.660 3.6021E-08
        0.700 2.9156E-08
        1.060 2.3702E-08
        1.530 1.4834E-07
        1.970 8.7327E-07
        2.325 3.7805E-06
        2.500 5.8407E-06
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -1.94e-06 9.7e-09 -2.34e-11 8.32e-07 1.15e-09 0.276
    nd: 1.68894
    Vd: 31.31
    glass_code: 689313.290
    glass_status: standard
    density: 2.904 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 8.56e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 9.92e-06 K<sup>-1</sup>
    dPgF: 0.0087
    climatic_resistance: 1.0
    stain_resistance: 0.0
    acid_resistance: 1.0
    alkali_resistance: 1.0
    phosphate_resistance: 1.0
