# 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: 0.31 2.5
    coefficients: 0 1.75836958 0.00872810026 0.313537785 0.0293020832 1.18925231 85.1780644
  - type: tabulated k
    data: |
        0.310 3.5641E-06
        0.320 2.1855E-06
        0.334 1.1723E-06
        0.350 5.6910E-07
        0.365 2.8125E-07
        0.370 2.2229E-07
        0.380 1.3960E-07
        0.390 9.1425E-08
        0.400 6.5309E-08
        0.405 5.5314E-08
        0.420 3.9343E-08
        0.436 3.0873E-08
        0.460 2.0644E-08
        0.500 1.1180E-08
        0.546 6.9658E-09
        0.580 9.2541E-09
        0.620 9.8924E-09
        0.660 8.4202E-09
        0.700 8.9305E-09
        1.060 6.7549E-09
        1.530 1.3330E-07
        1.970 8.8770E-07
        2.325 5.9260E-06
        2.500 1.5703E-05
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 3.89e-06 1.02e-08 -1.91e-11 5.88e-07 7.57e-10 0.181
    nd: 1.7725
    Vd: 49.62
    glass_code: 773496.424
    glass_status: standard
    density: 4.24 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 5.8e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 7e-06 K<sup>-1</sup>
    dPgF: -0.0085
    climatic_resistance: 1.0
    stain_resistance: 1.0
    acid_resistance: 51.3
    alkali_resistance: 1.0
    phosphate_resistance: 1.0
