# 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: 2.7016579 -0.011617767 2 0.015597681 -2 0.00019111207 -4 1.132323e-05 -6 -5.9630893e-07 -8
  - type: tabulated k
    data: |
        0.270 5.4995E-06
        0.280 4.6179E-06
        0.290 3.6525E-06
        0.300 2.9068E-06
        0.310 2.6671E-06
        0.320 1.3297E-06
        0.330 8.3518E-07
        0.340 5.4845E-07
        0.350 3.5003E-07
        0.360 2.3198E-07
        0.370 1.4833E-07
        0.380 8.0963E-08
        0.390 7.2670E-08
        0.400 5.3185E-08
        0.420 3.3473E-08
        0.440 2.3366E-08
        0.460 2.4428E-08
        0.480 2.5490E-08
        0.500 2.6552E-08
        0.550 2.9208E-08
        0.600 3.1863E-08
        0.650 3.4518E-08
        0.700 3.7173E-08
        0.800 4.2484E-08
        1.060 5.6291E-08
        1.500 7.9657E-08
        2.000 3.7267E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -7.58e-06 9.42e-09 -3.47e-11 3.97e-07 4.24e-10 0.182
    nd: 1.65670
    Vd: 62.3
    glass_code: 657623
    density:
      - value: 4360
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.1e-06
      - temperature_range: 293 573
        value: 1.03e-05
    dPgF: 0.0026
    resistance:
        climatic: 1.0
        acid: 5.0