# 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>
COMMENTS: |
    anneal rate:4°C/h
DATA:
  - type: formula 2
    wavelength_range: 0.302 2.325
    coefficients: 0 0.973027043 0.004919458 0.077363216 0.01820094 0.687944956 159.44609
  - type: tabulated k
    data: |
        0.280 3.1985E-06
        0.290 2.2088E-06
        0.300 1.3588E-06
        0.310 7.7298E-07
        0.320 3.9594E-07
        0.330 2.0189E-07
        0.340 1.0763E-07
        0.350 4.7756E-08
        0.360 3.4585E-08
        0.370 1.7719E-08
        0.380 1.5158E-08
        0.390 1.2439E-08
        0.400 1.2758E-08
        0.420 1.3396E-08
        0.440 1.4034E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        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 1.1146E-08
        1.600 1.2739E-08
        1.800 1.4331E-08
        2.000 1.5923E-08
        2.200 1.7516E-08
        2.400 3.8235E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.24e-05 -5.6e-09 -9.96e-12 3.32e-07 4.01e-12 0.182
    nd: 1.437800
    Vd: 94.523389
    glass_code: 438945
    density:
      - value: 3520
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.43e-05
      - temperature_range: 293 573
        value: 1.69e-05
    dPgF: 0.0487
    resistance:
        climatic: 1.0