# 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="https://refractiveindex.info/download/data/2017/sumita_2017-02-02.agf">SUMITA Zemax catalog 2017-02-02</a> (obtained from <a href="http://www.sumita-opt.co.jp/en/download/">http://www.sumita-opt.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2016/sumita_2016-02-01.pdf">SUMITA optical glass data book</a>
DATA:
  - type: formula 3
    wavelength_range: 0.36 1.55
    coefficients: 3.527437 -0.014640706 2 0.040393831 -2 0.0015495078 -4 -4.5667249e-05 -6 9.0971269e-06 -8
  - type: tabulated k
    data: |
        0.350 1.1189E-05
        0.360 4.7128E-06
        0.370 2.2992E-06
        0.380 1.3213E-06
        0.390 8.3949E-07
        0.400 5.6637E-07
        0.420 3.2256E-07
        0.440 2.2038E-07
        0.460 1.4943E-07
        0.480 1.0455E-07
        0.500 6.8222E-08
        0.550 3.0745E-08
        0.600 2.3933E-08
        0.650 3.6335E-08
        0.700 2.7922E-08
        0.800 1.9127E-08
        1.060 1.6887E-08
        1.500 2.3897E-08
        2.000 2.5671E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.83e-08 1.49e-08 -2.69e-10 8.28e-07 7.87e-10 0.248
    nd: 1.91100
    Vd: 35.2
    glass_code: 911352
    density:
      - value: 4900
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.9e-06
      - temperature_range: 293 573
        value: 8.8e-06
    dPgF: -0.0019
    resistance:
        climatic: 1.0
        acid: 1.0