# 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: 3.1666472 -0.014823032 2 0.030366123 -2 0.0010942894 -4 -4.2108569e-05 -6 5.7186779e-06 -8
  - type: tabulated k
    data: |
        0.320 1.7590E-05
        0.330 8.2027E-06
        0.340 3.6343E-06
        0.350 1.8374E-06
        0.360 1.0218E-06
        0.370 6.1681E-07
        0.380 3.7970E-07
        0.390 2.4531E-07
        0.400 1.6662E-07
        0.420 1.0180E-07
        0.440 6.3599E-08
        0.460 4.4192E-08
        0.480 2.6832E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        1.060 1.6887E-08
        1.500 2.3897E-08
        2.000 3.8663E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.26e-06 1.83e-08 -3.28e-10 7.62e-07 8.92e-10 0.222
    nd: 1.80500
    Vd: 39.6
    glass_code: 805396
    density:
      - value: 4130
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.6e-06
      - temperature_range: 293 573
        value: 7e-06
    dPgF: -0.0066
    resistance:
        climatic: 1.0
        acid: 3.0