# 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/2022/CDGM-ZEMAX202206new.AGF">CDGM Zemax catalog 2022-06</a> (obtained from <a href="http://www.cdgmgd.com/go.htm?k=Download&url=downList">http://www.cdgmgd.com</a>)<br>See also <a href="https://refractiveindex.info/download/data/2022/CDGM202206.pdf">CDGM optical glass data sheets</a>
DATA:
  - type: formula 2
    wavelength_range: 0.365 2.325
    coefficients: 0 0.279518569 0.0593856526 2.01429741 0.012625744 1.5507336 100.032291
  - type: tabulated k
    data: |
        0.360 1.1207E-05
        0.370 4.2020E-06
        0.380 1.9198E-06
        0.390 1.1069E-06
        0.400 7.5033E-07
        0.420 4.2725E-07
        0.440 2.8055E-07
        0.460 2.0321E-07
        0.480 1.5593E-07
        0.500 1.1709E-07
        0.550 6.1708E-08
        0.600 3.8351E-08
        0.650 3.1129E-08
        0.700 2.2326E-08
        0.800 1.9127E-08
        0.850 1.3542E-08
        0.900 1.4338E-08
        0.950 1.5135E-08
        1.000 1.5931E-08
        1.060 1.6887E-08
        1.200 1.9118E-08
        1.400 2.2304E-08
        1.600 2.5490E-08
        1.800 1.1505E-07
        2.000 4.6837E-07
        2.200 1.5743E-06
        2.400 5.7507E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -8.76e-07 1.45e-08 -5.38e-11 7.77e-07 8.1e-10 0.291
    nd: 1.850130
    Vd: 30.055517
    glass_code: 850301
    density:
      - value: 3980
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.8e-06
      - temperature_range: 293 573
        value: 8.3e-06
    dPgF: 0.0056
    resistance:
        climatic: 1.0