# 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: 2.5853303 -0.011740187 2 0.014496524 -2 0.0003287161 -4 -1.5804639e-05 -6 1.1016183e-06 -8
  - type: tabulated k
    data: |
        0.280 1.0261E-05
        0.290 5.6618E-06
        0.300 3.3000E-06
        0.310 1.9863E-06
        0.320 1.1969E-06
        0.330 6.7955E-07
        0.340 4.0807E-07
        0.350 2.4741E-07
        0.360 1.2591E-07
        0.370 6.5499E-08
        0.380 4.5703E-08
        0.390 9.3246E-09
        0.400 9.5636E-09
        0.420 1.0042E-08
        0.440 1.0520E-08
        0.460 7.3285E-09
        0.480 7.6471E-09
        0.500 7.9657E-09
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        1.060 6.7753E-08
        1.500 2.6554E-07
        2.000 7.6618E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.39e-07 1.49e-08 -2.68e-10 3.99e-07 1.11e-09 0.174
    nd: 1.62041
    Vd: 60.3
    glass_code: 620603
    density:
      - value: 3500
    thermal_expansion:
      - temperature_range: 243 343
        value: 6e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.0029
    resistance:
        climatic: 2.0
        acid: 5.0