# 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 1.54437415 0.00815901025 1.00066972 88.9110754 0.219123775 0.0267011064
  - type: tabulated k
    data: |
        0.290 8.5130E-06
        0.300 5.7222E-06
        0.310 3.7352E-06
        0.320 2.4506E-06
        0.330 1.5747E-06
        0.340 9.7665E-07
        0.350 5.9724E-07
        0.360 3.5971E-07
        0.370 2.2001E-07
        0.380 1.3923E-07
        0.390 9.7732E-08
        0.400 7.7326E-08
        0.420 6.4114E-08
        0.440 6.0036E-08
        0.460 4.7899E-08
        0.480 3.4533E-08
        0.500 2.7950E-08
        0.550 2.6340E-08
        0.600 2.3933E-08
        0.650 2.0732E-08
        0.700 2.2326E-08
        0.800 2.5516E-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 4.4653E-08
        1.600 6.3822E-08
        1.800 1.8743E-07
        2.000 5.0119E-07
        2.200 1.5743E-06
        2.400 5.9844E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -4.1e-06 1.07e-08 -1.69e-11 5.87e-07 1.27e-09 0.095
    nd: 1.677900
    Vd: 55.514970
    glass_code: 678555
    density:
      - value: 3800
    thermal_expansion:
      - temperature_range: 243 343
        value: 8e-06
      - temperature_range: 293 573
        value: 9.4e-06
    dPgF: -0.0049
    resistance:
        climatic: 2.0