# 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: 2.4994867 -0.0059285872 2 0.012743526 -2 0.00015469636 -4 3.9947612e-06 -6 -1.760356e-07 -8
  - type: tabulated k
    data: |
        0.280 3.8333E-06
        0.290 3.1535E-06
        0.300 2.3352E-06
        0.310 2.3611E-06
        0.320 9.4491E-07
        0.330 5.2435E-07
        0.340 2.8206E-07
        0.350 1.3408E-07
        0.360 6.3729E-08
        0.370 2.9592E-08
        0.380 1.5158E-08
        0.390 9.3246E-09
        0.400 9.5636E-09
        0.420 1.0042E-08
        0.440 1.0520E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 1.1955E-08
        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 1.4411E-07
        2.000 2.8909E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.36e-05 2.85e-09 4.82e-11 4.01e-07 2.74e-10 0.183
    nd: 1.59240
    Vd: 68.3
    glass_code: 592683
    density:
      - value: 4510
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.29e-05
      - temperature_range: 293 573
        value: 1.52e-05
    dPgF: 0.0179
    resistance:
        climatic: 1.0
        acid: 1.0