# 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: 0.4047 2.325
    coefficients: 0 2.55246796 162.450683 0.465681607 0.069560081 2.0289468 0.014771138
  - type: tabulated k
    data: |
        0.390 4.8288E-06
        0.400 1.9850E-06
        0.420 7.4998E-07
        0.440 4.8359E-07
        0.460 3.5328E-07
        0.480 2.8131E-07
        0.500 2.2930E-07
        0.550 1.1980E-07
        0.600 7.7012E-08
        0.650 7.2927E-08
        0.700 5.5985E-08
        0.800 5.1134E-08
        0.850 4.0707E-08
        0.900 4.3101E-08
        0.950 3.0300E-08
        1.000 3.1895E-08
        1.060 2.5344E-08
        1.200 1.9118E-08
        1.400 3.3473E-08
        1.600 6.3822E-08
        1.800 1.8743E-07
        2.000 3.3778E-07
        2.200 6.7824E-07
        2.400 1.2224E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -6.75e-06 1.69e-08 -4.1e-11 9.81e-07 1.32e-09 0.322
    nd: 1.922860
    Vd: 20.879915
    glass_code: 923209
    glass_status: standard
    density:
      - value: 4010
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.4e-06
      - temperature_range: 293 573
        value: 7.7e-06
    dPgF: 0.0298
    resistance:
        climatic: 1.0