# 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 0.845101506 100.298196 1.01452466 0.00555241848 0.418518474 0.0202280796
  - type: tabulated k
    data: |
        0.290 3.6348E-06
        0.300 1.9817E-06
        0.310 1.0400E-06
        0.320 5.3345E-07
        0.330 2.7377E-07
        0.340 1.4163E-07
        0.350 7.3374E-08
        0.360 3.7486E-08
        0.370 2.3650E-08
        0.380 1.5158E-08
        0.390 2.1801E-08
        0.400 1.5955E-08
        0.420 1.6753E-08
        0.440 1.7551E-08
        0.460 1.8349E-08
        0.480 1.9146E-08
        0.500 1.9944E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.6736E-08
        0.800 1.2745E-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 1.3450E-07
        1.600 1.0227E-07
        1.800 3.4797E-07
        2.000 7.1616E-07
        2.200 1.9812E-06
        2.400 3.2166E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 6.29e-08 1.64e-08 -1.82e-11 4.71e-07 4.87e-10 0.223
    nd: 1.572500
    Vd: 57.486797
    glass_code: 573575
    density:
      - value: 3180
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.4e-06
      - temperature_range: 293 573
        value: 8.9e-06
    dPgF: -0.001
    resistance:
        climatic: 2.0