# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
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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: 0.4047 2.325
    coefficients: 0 0.323730379 0.0598308169 1.65668629 0.0120542686 2.1214152 174.18792
  - type: tabulated k
    data: |
        0.370 7.8298E-06
        0.380 2.8474E-06
        0.390 1.1969E-06
        0.400 6.2006E-07
        0.420 2.4255E-07
        0.440 1.3565E-07
        0.460 1.0019E-07
        0.480 7.7169E-08
        0.500 6.4177E-08
        0.550 3.9569E-08
        0.600 3.3540E-08
        0.650 3.6335E-08
        0.700 2.7922E-08
        0.800 1.9127E-08
        0.850 2.0323E-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 2.6018E-07
        2.000 4.8477E-07
        2.200 1.1766E-06
        2.400 1.9275E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -3e-06 4.05e-09 -1.34e-10 9.31e-07 3.32e-09 0.293
    nd: 1.761820
    Vd: 26.607986
    glass_code: 762266
    density:
      - value: 3170
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.4e-06
      - temperature_range: 293 573
        value: 1.01e-05
    dPgF: 0.0128
    resistance:
        climatic: 1.0