# 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 1.13861881 80.074466 0.158050538 0.0368197669 1.73934635 0.00909531981
  - type: tabulated k
    data: |
        0.320 6.4317E-06
        0.330 3.1617E-06
        0.340 1.7693E-06
        0.350 1.0335E-06
        0.360 6.7529E-07
        0.370 4.2021E-07
        0.380 2.7855E-07
        0.390 1.9864E-07
        0.400 1.4990E-07
        0.420 1.0870E-07
        0.440 8.5059E-08
        0.460 7.0220E-08
        0.480 5.7730E-08
        0.500 4.4010E-08
        0.550 3.5155E-08
        0.600 3.3540E-08
        0.650 3.6335E-08
        0.700 3.3523E-08
        0.800 3.8312E-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 2.5490E-08
        1.800 1.8743E-07
        2.000 6.9952E-07
        2.200 2.6405E-06
        2.400 9.4404E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.02e-06 1.82e-08 -1.04e-10 4.87e-07 9.07e-10 0.216
    nd: 1.720000
    Vd: 50.343857
    glass_code: 720503
    density:
      - value: 3770
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.3e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.0086
    resistance:
        climatic: 1.0