# 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 1.55351121 0.00793041249 0.342243754 0.0280174591 1.07011974 90.2590858
  - type: tabulated k
    data: |
        0.310 5.4451E-06
        0.320 3.2690E-06
        0.330 2.0449E-06
        0.340 1.2630E-06
        0.350 7.6803E-07
        0.360 4.5549E-07
        0.370 2.6799E-07
        0.380 1.6148E-07
        0.390 1.1057E-07
        0.400 8.0589E-08
        0.420 5.3908E-08
        0.440 4.2271E-08
        0.460 2.5714E-08
        0.480 1.9146E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-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 2.2304E-08
        1.600 3.8255E-08
        1.800 1.4396E-07
        2.000 4.5199E-07
        2.200 1.3082E-06
        2.400 5.4689E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.05e-07 1.37e-08 -3.29e-11 4.91e-07 6.32e-10 0.249
    nd: 1.720000
    Vd: 50.280736
    glass_code: 720503
    density:
      - value: 3880
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.6e-06
      - temperature_range: 293 573
        value: 9.1e-06
    dPgF: -0.0068
    resistance:
        climatic: 1.0