# 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: 0.313 2.325
    coefficients: 0 1.63613242 0.00869769737 0.169161636 0.0295057126 0.929984618 82.4994109
  - type: tabulated k
    data: |
        0.310 7.7622E-06
        0.320 5.3157E-06
        0.330 3.4287E-06
        0.340 2.1187E-06
        0.350 1.2430E-06
        0.360 7.0812E-07
        0.370 4.0666E-07
        0.380 2.2596E-07
        0.390 1.3965E-07
        0.400 9.0398E-08
        0.420 5.0514E-08
        0.440 4.5817E-08
        0.460 3.3094E-08
        0.480 2.6832E-08
        0.500 1.9944E-08
        0.550 2.1939E-08
        0.600 2.3933E-08
        0.650 2.0732E-08
        0.700 2.2326E-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 7.8260E-08
        1.600 1.2796E-07
        1.800 3.6265E-07
        2.000 8.6670E-07
        2.200 2.6812E-06
        2.400 7.9647E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -5.25e-06 1.39e-08 -3.66e-11 5.03e-07 5.22e-10 0.184
    nd: 1.691000
    Vd: 54.815309
    glass_code: 691548
    density:
      - value: 3940
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.2e-06
      - temperature_range: 293 573
        value: 9.6e-06
    dPgF: -0.0052
    resistance:
        climatic: 3.0