# 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: 0.4 1.55
    coefficients: 3.2452002 -0.011397767 2 0.048209487 -2 0.0022384274 -4 -2.8034687e-05 -6 1.8880187e-05 -8
  - type: tabulated k
    data: |
        0.360 1.2671E-05
        0.370 5.8313E-06
        0.380 3.1317E-06
        0.390 1.8498E-06
        0.400 1.1996E-06
        0.420 6.3891E-07
        0.440 4.3965E-07
        0.460 3.4523E-07
        0.480 2.6081E-07
        0.500 1.8737E-07
        0.550 7.9499E-08
        0.600 8.6727E-08
        0.650 1.2036E-07
        0.700 9.5511E-08
        0.800 3.1911E-08
        1.060 4.2282E-08
        1.500 9.5877E-08
        2.000 7.6618E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -4.02e-06 2.01e-08 -1.33e-10 1.73e-06 1.55e-09 0.277
    nd: 1.84400
    Vd: 24.8
    glass_code: 844248
    density:
      - value: 4580
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.03e-05
      - temperature_range: 293 573
        value: 1.22e-05
    dPgF: 0.0136
    resistance:
        climatic: 1.0
        acid: 1.0