# 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 1.77931763 0.0133714182 0.338149866 0.0617533621 2.08734474 174.01759
  - type: tabulated k
    data: |
        0.370 4.6074E-06
        0.380 1.5837E-06
        0.390 7.1979E-07
        0.400 4.1826E-07
        0.405 3.3694E-07
        0.420 2.1727E-07
        0.436 1.6173E-07
        0.460 1.2687E-07
        0.500 8.1636E-08
        0.546 4.4002E-08
        0.580 3.5415E-08
        0.620 4.1885E-08
        0.660 4.8884E-08
        0.700 3.5939E-08
        1.060 1.0137E-08
        1.530 9.8390E-08
        1.970 8.7327E-07
        2.325 3.5378E-06
        2.500 4.6140E-06
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: -4.93e-06 7.02e-09 -2.4e-11 9.84e-07 1.54e-09 0.29
    nd: 1.80518
    Vd: 25.36
    glass_code: 805254.337
    glass_status: standard
    density: 3.369 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 9.03e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 1.034e-05 K<sup>-1</sup>
    dPgF: 0.0146
    climatic_resistance: 1.0
    stain_resistance: 0.0
    acid_resistance: 2.0
    alkali_resistance: 1.0
    phosphate_resistance: 1.0
