# 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 0.659469741 0.000766009635 0.7621967 0.0177403402 1.19935835 129.975103
  - type: tabulated k
    data: |
        0.320 9.2938E-06
        0.330 4.6225E-06
        0.340 1.5114E-06
        0.350 5.1897E-07
        0.360 1.9560E-07
        0.370 8.3618E-08
        0.380 4.5703E-08
        0.390 3.1191E-08
        0.400 2.2360E-08
        0.420 1.6753E-08
        0.440 1.7551E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 1.1955E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.6736E-08
        0.800 1.2745E-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 1.3450E-07
        1.600 7.6624E-08
        1.800 2.7477E-07
        2.000 6.0004E-07
        2.200 1.9421E-06
        2.400 3.1489E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 6.07e-07 1.74e-08 -3.75e-11 5.69e-07 2.67e-10 0.188
    nd: 1.568830
    Vd: 56.041308
    glass_code: 569560
    glass_status: standard
    density:
      - value: 2830
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.2e-06
      - temperature_range: 293 573
        value: 9e-06
    dPgF: -0.0007
    resistance:
        climatic: 2.0