# 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: 2.6835737 -0.012086498 2 0.015193489 -2 0.00064847987 -4 -5.2423893e-05 -6 2.8301452e-06 -8
  - type: tabulated k
    data: |
        0.290 1.0628E-05
        0.300 6.4890E-06
        0.310 4.0202E-06
        0.320 2.5250E-06
        0.330 1.5320E-06
        0.340 9.2285E-07
        0.350 5.5613E-07
        0.360 3.3063E-07
        0.370 2.0104E-07
        0.380 1.3291E-07
        0.390 9.1333E-08
        0.400 7.0810E-08
        0.420 5.0514E-08
        0.440 4.2271E-08
        0.460 3.6790E-08
        0.480 3.0681E-08
        0.500 2.3945E-08
        0.550 2.6340E-08
        0.600 2.8734E-08
        0.650 3.1129E-08
        0.700 1.6736E-08
        0.800 1.2745E-08
        1.060 1.6887E-08
        1.500 3.5864E-08
        2.000 4.6837E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.13e-06 1.62e-08 -5.04e-11 3.71e-07 6.15e-10 0.214
    nd: 1.65160
    Vd: 58.3
    glass_code: 652583
    density:
      - value: 3760
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.8e-06
      - temperature_range: 293 573
        value: 8.4e-06
    dPgF: -0.0021
    resistance:
        climatic: 2.0
        acid: 5.0