# 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: 0.302 2.325
    coefficients: 0 0.530248488 0.0175027403 1.12537335 109.192004 0.947317341 0.00498306497
  - type: tabulated k
    data: |
        0.300 6.3485E-06
        0.310 3.6255E-06
        0.320 1.9774E-06
        0.330 1.0912E-06
        0.340 5.7013E-07
        0.350 2.9965E-07
        0.360 1.6510E-07
        0.370 9.2720E-08
        0.380 6.4179E-08
        0.390 4.6905E-08
        0.400 3.8428E-08
        0.420 3.0216E-08
        0.440 3.1655E-08
        0.460 2.9402E-08
        0.480 2.6832E-08
        0.500 2.3945E-08
        0.550 2.1939E-08
        0.600 2.3933E-08
        0.650 2.5928E-08
        0.700 2.2326E-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 2.2304E-08
        1.600 3.8255E-08
        1.800 2.6018E-07
        2.000 6.1658E-07
        2.200 2.3578E-06
        2.400 4.7453E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.09e-06 1.37e-08 -3.16e-11 4.84e-07 4.03e-10 0.189
    nd: 1.586250
    Vd: 59.524868
    glass_code: 586595
    density:
      - value: 2990
    thermal_expansion:
      - temperature_range: 293 573
        value: 9e-06
    dPgF: -0.0035