# 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 1.86348331 0.00910368219 0.413307255 0.0339247268 1.35784815 93.3580595
  - type: tabulated k
    data: |
        0.334 3.4222E-06
        0.350 1.4587E-06
        0.365 6.9459E-07
        0.370 5.4416E-07
        0.380 3.4797E-07
        0.390 2.3131E-07
        0.400 1.6856E-07
        0.405 1.5023E-07
        0.420 1.1147E-07
        0.436 8.5873E-08
        0.460 5.6725E-08
        0.500 2.5671E-08
        0.546 1.2209E-08
        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 8.3504E-08
        1.970 8.0161E-07
        2.325 4.9832E-06
        2.500 1.4583E-05
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    thermal_dispersion:
      - type: "Schott formula"
        coefficients: 3.03e-06 1.04e-08 -1.3e-11 6.62e-07 7.82e-10 0.209
    nd: 1.83501
    Vd: 43.13
    glass_code: 835431.485
    glass_status: standard
    density: 4.845 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 6.19e-06 K<sup>-1</sup>
      - temperature_range: 20 300 °C
        coefficient: 7.33e-06 K<sup>-1</sup>
    dPgF: -0.0083
    climatic_resistance: 1.0
    stain_resistance: 1.0
    acid_resistance: 4.0
    alkali_resistance: 1.0
    phosphate_resistance: 1.0
