# 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: 0.302 2.325
    coefficients: 0 0.225893751 0.0391551736 1.88248028 0.0100951886 1.11307009 85.0042906
  - type: tabulated k
    data: |
        0.320 6.7718E-06
        0.330 3.5988E-06
        0.340 2.1187E-06
        0.350 1.2913E-06
        0.360 7.8998E-07
        0.370 4.8893E-07
        0.380 3.0185E-07
        0.390 2.1190E-07
        0.400 1.4990E-07
        0.420 9.8359E-08
        0.440 7.4313E-08
        0.460 4.7899E-08
        0.480 3.4533E-08
        0.500 2.7950E-08
        0.550 2.6340E-08
        0.600 2.3933E-08
        0.650 2.0732E-08
        0.700 2.2326E-08
        0.800 2.5516E-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 3.3473E-08
        1.600 3.8255E-08
        1.800 1.4396E-07
        2.000 4.8477E-07
        2.200 1.3649E-06
        2.400 6.0629E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 7.32e-06 1.67e-08 -2.76e-11 7.23e-07 7.76e-10 0.219
    nd: 1.785900
    Vd: 44.187159
    glass_code: 786442
    density:
      - value: 4390
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.9e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.0083
    resistance:
        climatic: 1.0