# 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: 2.5591851 -0.0099057522 2 0.016577727 -2 0.00054738619 -4 -3.5329686e-05 -6 2.4596919e-06 -8
  - type: tabulated k
    data: |
        0.290 1.2227E-05
        0.300 9.5908E-06
        0.310 6.1104E-06
        0.320 3.7095E-06
        0.330 2.1679E-06
        0.340 1.2673E-06
        0.350 7.2796E-07
        0.360 4.1216E-07
        0.370 2.2637E-07
        0.380 1.5511E-07
        0.390 1.0736E-07
        0.400 7.4066E-08
        0.420 5.0514E-08
        0.440 4.9366E-08
        0.460 4.4192E-08
        0.480 2.6832E-08
        0.500 2.3945E-08
        0.550 2.1939E-08
        0.600 1.9137E-08
        0.650 3.1129E-08
        0.700 2.7922E-08
        0.800 3.8312E-08
        1.060 3.3809E-08
        1.500 5.9833E-08
        2.000 3.8663E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 8.96e-06 1.89e-08 -2.12e-10 6.71e-07 9.18e-10 0.191
    nd: 1.61484
    Vd: 51.1
    glass_code: 615511
    density:
      - value: 3370
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.6e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.0072
    resistance:
        climatic: 1.0
        acid: 4.0