# 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: 0.3 2.5
    coefficients: 0 1.42288601 0.00670283452 0.593661336 0.021941621 1.1613526 80.7407701
  - type: tabulated k
    data: |
        0.300 4.3976E-06
        0.310 3.4601E-06
        0.320 2.0027E-06
        0.334 1.1161E-06
        0.350 5.5069E-07
        0.365 2.7387E-07
        0.370 2.1945E-07
        0.380 1.4096E-07
        0.390 9.0090E-08
        0.400 6.5309E-08
        0.405 5.8009E-08
        0.420 3.9343E-08
        0.436 2.9455E-08
        0.460 2.0644E-08
        0.500 1.1180E-08
        0.546 8.7117E-09
        0.580 1.1111E-08
        0.620 1.3863E-08
        0.660 1.2643E-08
        0.700 1.1169E-08
        1.060 1.6913E-08
        1.530 1.8361E-07
        1.970 1.0191E-06
        2.325 7.1608E-06
        2.500 1.8323E-05
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 2.77e-06 1.24e-08 1.22e-11 5.19e-07 6.02e-10 0.184
    nd: 1.755
    Vd: 52.3
    glass_code: 755523.422
    glass_status: standard
    density: 4.221 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 5.83e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 7.06e-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: 2.0
