# 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 3
    wavelength_range: 0.365 1.014
    coefficients: 2.31506425 -0.00827156166 2 0.0129535559 -2 0.000268505199 -4 -5.46028268e-06 -6 6.24325621e-07 -8
  - type: tabulated k
    data: |
        0.320 6.3380E-06
        0.330 2.4593E-06
        0.340 1.0158E-06
        0.350 4.4610E-07
        0.360 2.0482E-07
        0.370 1.0490E-07
        0.380 6.1092E-08
        0.390 3.1191E-08
        0.400 1.5955E-08
        0.420 1.3396E-08
        0.440 1.4034E-08
        0.460 1.4672E-08
        0.480 1.1476E-08
        0.500 1.1955E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.6736E-08
        0.800 1.9127E-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 4.9549E-07
        2.000 1.1721E-06
        2.200 2.7630E-06
        2.400 3.9069E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -1.57e-06 1.35e-08 -5.16e-11 7.91e-07 9.19e-10 0.086
    nd: 1.533589
    Vd: 55.469983
    glass_code: 534555
    density:
      - value: 2720
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.2e-06
      - temperature_range: 293 573
        value: 1.07e-05
    dPgF: -0.0023