# 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: 0.365 2.325
    coefficients: 0 0.175551746 0.0360804664 1.51566987 0.00823043679 1.11140587 113.991537
  - type: tabulated k
    data: |
        0.340 8.1054E-06
        0.350 3.4477E-06
        0.360 1.5605E-06
        0.370 7.3156E-07
        0.380 3.8656E-07
        0.390 2.3191E-07
        0.400 1.4990E-07
        0.420 8.8048E-08
        0.440 7.4313E-08
        0.460 6.6490E-08
        0.480 5.7730E-08
        0.500 4.8035E-08
        0.550 3.9569E-08
        0.600 4.3166E-08
        0.650 4.6764E-08
        0.700 4.4743E-08
        0.800 3.8312E-08
        0.850 2.7111E-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 5.5844E-08
        1.600 8.9440E-08
        1.800 2.6018E-07
        2.000 5.6702E-07
        2.200 1.5743E-06
        2.400 3.7901E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -8.53e-07 1.64e-08 -5.14e-11 4.62e-07 2.21e-10 0.257
    nd: 1.656910
    Vd: 51.121380
    glass_code: 657511
    density:
      - value: 3770
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.5e-06
      - temperature_range: 293 573
        value: 9e-06
    dPgF: -0.0006
    resistance:
        climatic: 1.0