# 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: "suitable for precision molding        "
DATA:
  - type: formula 2 
    range: 0.32 2.5
    coefficients: 0 1.76003244 0.00938006396 0.248286745 0.0360537464 1.15935122 86.4324693
  - type: tabulated k
    data: |
        0.320 3.2787E-06
        0.334 1.1469E-06
        0.350 4.9720E-07
        0.365 2.4482E-07
        0.370 1.9835E-07
        0.380 1.2744E-07
        0.390 9.0090E-08
        0.400 6.5309E-08
        0.405 5.9358E-08
        0.420 4.4862E-08
        0.436 3.5137E-08
        0.460 2.5106E-08
        0.500 1.4389E-08
        0.546 1.0459E-08
        0.580 1.1111E-08
        0.620 1.1877E-08
        0.660 1.0531E-08
        0.700 8.9305E-09
        1.060 1.3523E-08
        1.530 1.1831E-07
        1.970 8.7327E-07
        2.325 5.2793E-06
        2.500 1.4583E-05
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    n_d: 1.7555
    V_d: 45.66
    glass_code: 755457.399
    glass_status: standard
    density: 3.987 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 6.26e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 7.8e-06 K<sup>-1</sup>
    ΔP_gF: -0.008
