# 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: "inquiry glass        "
DATA:
  - type: formula 2 
    wavelength_range: 0.38 2.5
    coefficients: 0 1.26538542 0.00813104078 0.0144191073 0.0543303226 1.00323028 102.821166
  - type: tabulated k
    data: |
        0.380 3.0551E-06
        0.390 1.5803E-06
        0.400 8.5733E-07
        0.405 6.5853E-07
        0.420 3.3217E-07
        0.436 1.8849E-07
        0.460 1.1099E-07
        0.500 6.9952E-08
        0.546 4.7570E-08
        0.580 3.9183E-08
        0.620 3.1832E-08
        0.660 2.5363E-08
        0.700 1.5652E-08
        1.060 6.7549E-09
        1.530 1.0336E-07
        1.970 1.0859E-06
        2.325 4.5602E-06
        2.500 9.0673E-06
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 1.52e-06 1.37e-08 -1.26e-11 4.36e-07 4.17e-10 0.194
    nd: 1.51975
    Vd: 63.58
    glass_code: 520636.252
    glass_status: special
    density: 2.52 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 7e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 8.22e-06 K<sup>-1</sup>
    dPgF: 0.0007
    stain_resistance: 0.0
    acid_resistance: 1.0
    alkali_resistance: 2.0
