# 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>
DATA:
  - type: formula 2
    wavelength_range: 0.302 2.325
    coefficients: 0 1.06131555 0.00543666583 0.365740168 0.0187659148 1.03466756 97.5169702
  - type: tabulated k
    data: |
        0.290 7.4283E-06
        0.300 4.3750E-06
        0.310 2.5898E-06
        0.320 1.4765E-06
        0.330 8.2645E-07
        0.340 4.6209E-07
        0.350 2.5656E-07
        0.360 1.4694E-07
        0.370 8.6649E-08
        0.380 6.1092E-08
        0.390 4.0610E-08
        0.400 2.8778E-08
        0.420 2.3478E-08
        0.440 2.4596E-08
        0.460 2.2030E-08
        0.480 1.9146E-08
        0.500 1.5947E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.6736E-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 2.5490E-08
        1.800 2.3104E-07
        2.000 6.4970E-07
        2.200 2.7221E-06
        2.400 5.2414E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.568880
    Vd: 62.956990
    glass_code: 569630
    density:
      - value: 3060
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.1e-06
      - temperature_range: 293 573
        value: 7.5e-06
    dPgF: -0.0011