# 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: 0.334 2.5
    coefficients: 0 1.87134529 0.0093332228 0.25078301 0.0345637762 1.22048639 83.2404866
  - type: tabulated k
    data: |
        0.334 3.4222E-06
        0.350 1.2251E-06
        0.365 5.2945E-07
        0.370 4.0835E-07
        0.380 2.4892E-07
        0.390 1.6152E-07
        0.400 1.1171E-07
        0.405 9.6330E-08
        0.420 6.5763E-08
        0.436 5.0883E-08
        0.460 3.5570E-08
        0.500 1.7604E-08
        0.546 1.2209E-08
        0.580 1.4829E-08
        0.620 1.5852E-08
        0.660 1.4758E-08
        0.700 1.3409E-08
        1.060 1.3523E-08
        1.530 1.4332E-07
        1.970 9.3120E-07
        2.325 6.2632E-06
        2.500 1.6806E-05
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 3.11e-06 1.13e-08 -2.07e-11 5.88e-07 6.32e-10 0.199
    nd: 1.788
    Vd: 47.49
    glass_code: 788475.428
    glass_status: standard
    density: 4.281 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 5.99e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 7.08e-06 K<sup>-1</sup>
    dPgF: -0.0084
    climatic_resistance: 1.0
    stain_resistance: 1.0
    acid_resistance: 51.3
    alkali_resistance: 1.0
    phosphate_resistance: 1.3
