# 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: 2.6994624 -0.011441236 2 0.017672891 -2 0.00039604649 -4 -3.5739234e-06 -6 7.0861608e-07 -8
  - type: tabulated k
    data: |
        0.330 1.0273E-05
        0.340 4.5364E-06
        0.350 1.8428E-06
        0.360 8.5101E-07
        0.370 4.4408E-07
        0.380 2.5543E-07
        0.390 1.7228E-07
        0.400 1.1671E-07
        0.420 8.4619E-08
        0.440 6.7167E-08
        0.460 5.5324E-08
        0.480 5.7730E-08
        0.500 4.8035E-08
        0.550 4.3988E-08
        0.600 2.8734E-08
        0.650 2.5928E-08
        0.700 1.6736E-08
        0.800 1.2745E-08
        1.060 1.6887E-08
        1.500 2.3897E-08
        2.000 4.0295E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.99e-07 1.21e-08 -1.58e-10 5.15e-07 8.57e-10 0.196
    nd: 1.65830
    Vd: 53.4
    glass_code: 658534
    density:
      - value: 3750
    thermal_expansion:
      - temperature_range: 293 573
        value: 8.2e-06
    dPgF: -0.0014
    resistance:
        climatic: 1.0
        acid: 1.0