# 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: 2.5429277 -0.01031719 2 0.014356944 -2 0.00031433872 -4 -1.0824341e-05 -6 6.8100892e-07 -8
  - type: tabulated k
    data: |
        0.290 1.0022E-05
        0.300 4.7281E-06
        0.310 2.4461E-06
        0.320 1.3784E-06
        0.330 7.4499E-07
        0.340 4.5248E-07
        0.350 2.4741E-07
        0.360 1.6813E-07
        0.370 1.0795E-07
        0.380 7.9663E-08
        0.390 7.2215E-08
        0.400 6.1061E-08
        0.420 6.0709E-08
        0.440 6.3599E-08
        0.460 5.5324E-08
        0.480 5.7730E-08
        0.500 4.8035E-08
        0.550 3.9569E-08
        0.600 3.8351E-08
        0.650 4.1547E-08
        0.700 2.7922E-08
        0.800 1.2745E-08
        1.060 1.2749E-07
        1.500 2.6554E-07
        2.000 7.4949E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.39e-07 1.74e-08 -2.81e-10 4.14e-07 1.06e-09 0.188
    nd: 1.60729
    Vd: 59.5
    glass_code: 607595
    density:
      - value: 3500
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.1e-06
      - temperature_range: 293 573
        value: 7.7e-06
    dPgF: -0.0001
    resistance:
        climatic: 3.0
        acid: 5.0