# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

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>
COMMENTS: |
    anneal rate:25°C/h
DATA:
  - type: formula 2
    wavelength_range: 0.4358 2.325
    coefficients: 0 1.4330228 101.185435 2.13630545 0.0138161232 0.630184037 0.065857845
  - type: tabulated k
    data: |
        0.400 1.2788E-05
        0.420 4.2427E-06
        0.440 1.9376E-06
        0.460 1.0288E-06
        0.480 5.8055E-07
        0.500 3.4042E-07
        0.550 1.0632E-07
        0.600 6.7317E-08
        0.650 6.2446E-08
        0.700 6.1614E-08
        0.800 6.3982E-08
        0.850 3.3905E-08
        0.900 2.8705E-08
        0.950 2.2714E-08
        1.000 2.3909E-08
        1.060 1.6887E-08
        1.200 1.9118E-08
        1.400 4.4653E-08
        1.600 7.6624E-08
        1.800 2.1649E-07
        2.000 6.1658E-07
        2.200 1.9225E-06
        2.400 6.0105E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.28e-05 3.34e-08 -1.53e-10 2.75e-06 2.52e-09 0.299
    nd: 1.999800
    Vd: 20.686444
    density:
      - value: 6110
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.8e-06
      - temperature_range: 293 573
        value: 9.4e-06
    dPgF: 0.0283
    resistance:
        climatic: 1.0