# 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: 0.4047 2.325
    coefficients: 0 2.04275349 0.0169742976 1.98276153 109.068151 0.504267829 0.075171071
  - type: tabulated k
    data: |
        0.390 9.9132E-06
        0.400 3.3875E-06
        0.420 5.3532E-07
        0.440 2.5034E-07
        0.460 1.6472E-07
        0.480 1.2423E-07
        0.500 9.2583E-08
        0.550 3.5155E-08
        0.600 2.3933E-08
        0.650 2.0732E-08
        0.700 2.2326E-08
        0.800 1.9127E-08
        0.850 2.0323E-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 6.3822E-08
        1.800 1.4396E-07
        2.000 2.4054E-07
        2.200 6.9645E-07
        2.400 1.1614E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -3.58e-06 1.75e-08 -4.67e-11 1.18e-06 1.91e-09 0.33
    nd: 1.945950
    Vd: 17.941964
    glass_code: 946179
    density:
      - value: 3520
    thermal_expansion:
      - temperature_range: 243 343
        value: 6e-06
      - temperature_range: 293 573
        value: 7.3e-06
    dPgF: 0.0401
    resistance:
        climatic: 1.0