# 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: 2.2433502 -0.0070443238 2 0.0095932746 -2 0.00019364616 -4 -9.8585539e-06 -6 6.1088785e-07 -8
  - type: tabulated k
    data: |
        0.280 1.5392E-05
        0.290 9.5429E-06
        0.300 5.9133E-06
        0.310 3.2854E-06
        0.320 1.6554E-06
        0.330 7.8009E-07
        0.340 3.3973E-07
        0.350 1.5461E-07
        0.360 8.1359E-08
        0.370 4.4500E-08
        0.380 3.0392E-08
        0.390 3.1191E-08
        0.400 2.5567E-08
        0.420 2.6846E-08
        0.440 2.8124E-08
        0.460 2.2030E-08
        0.480 2.2987E-08
        0.500 1.5947E-08
        0.550 1.7542E-08
        0.600 1.9137E-08
        0.650 2.0732E-08
        0.700 2.2326E-08
        0.800 2.5516E-08
        1.060 1.6887E-08
        1.500 2.3897E-08
        2.000 4.7818E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -1.86e-05 -3.2e-09 -2.53e-11 4.98e-07 8.02e-10 0.172
    nd: 1.50670
    Vd: 70.5
    glass_code: 507705
    density:
      - value: 3000
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.43e-05
      - temperature_range: 293 573
        value: 1.65e-05
    dPgF: 0.0124
    resistance:
        climatic: 1.0
        acid: 5.0