# 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:4°C/h
DATA:
  - type: formula 2
    wavelength_range: 0.365 2.325
    coefficients: 0 0.181090971 0.0606385885 1.38321826 132.946691 1.57814468 0.0122919204
  - type: tabulated k
    data: |
        0.360 8.5821E-06
        0.370 3.0081E-06
        0.380 1.3027E-06
        0.390 6.9253E-07
        0.400 3.9607E-07
        0.420 1.8907E-07
        0.440 1.3201E-07
        0.460 1.0773E-07
        0.480 8.4972E-08
        0.500 6.4177E-08
        0.550 3.0745E-08
        0.600 3.3540E-08
        0.650 4.1547E-08
        0.700 3.3523E-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 2.2304E-08
        1.600 2.5490E-08
        1.800 3.0401E-07
        2.000 7.1616E-07
        2.200 1.5360E-06
        2.400 2.6597E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -5.76e-06 6.62e-09 -3.57e-11 9.8e-07 1.12e-09 0.261
    nd: 1.688930
    Vd: 31.077677
    glass_code: 689311
    density:
      - value: 2840
    thermal_expansion:
      - temperature_range: 243 343
        value: 1e-05
      - temperature_range: 293 573
        value: 1.29e-05
    dPgF: 0.007
    resistance:
        climatic: 1.0