# 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 1.31514915 103.989436 1.08358135 0.0143813024 0.513108754 -0.00036392391
  - type: tabulated k
    data: |
        0.280 3.4880E-06
        0.290 2.6586E-06
        0.300 1.8904E-06
        0.310 1.2643E-06
        0.320 7.9792E-07
        0.330 4.8615E-07
        0.340 2.8507E-07
        0.350 1.6346E-07
        0.360 8.7259E-08
        0.370 5.0485E-08
        0.380 3.0392E-08
        0.390 2.1801E-08
        0.400 1.9156E-08
        0.420 1.6753E-08
        0.440 1.4034E-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 1.0355E-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 6.7046E-08
        1.600 6.3822E-08
        1.800 1.5844E-07
        2.000 4.5199E-07
        2.200 1.5935E-06
        2.400 6.4338E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.26e-06 1.53e-08 -2.43e-11 4.86e-07 2.51e-10 0.199
    nd: 1.624460
    Vd: 58.207924
    glass_code: 624582
    density:
      - value: 2990
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.1e-06
      - temperature_range: 293 573
        value: 8.4e-06
    dPgF: -0.0065
    resistance:
        climatic: 1.0