# 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: 0.302 2.325
    coefficients: 0 0.872991432 0.00422111331 0.756437828 151.201184 0.344497102 0.0138938225
  - type: tabulated k
    data: |
        0.280 6.7660E-06
        0.290 4.5373E-06
        0.300 2.7883E-06
        0.310 1.9480E-06
        0.320 8.0839E-07
        0.330 3.8692E-07
        0.340 1.9344E-07
        0.350 9.0584E-08
        0.360 4.9120E-08
        0.370 2.3650E-08
        0.380 1.8198E-08
        0.390 1.5557E-08
        0.400 9.5636E-09
        0.420 1.3396E-08
        0.440 1.0520E-08
        0.460 7.3285E-09
        0.480 7.6471E-09
        0.500 7.9657E-09
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-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 2.8677E-08
        2.000 3.1863E-08
        2.200 3.5049E-08
        2.400 7.6548E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.45e-05 -2.09e-09 -6.72e-13 3.69e-07 2.37e-10 0.173
    nd: 1.497000
    Vd: 81.611615
    glass_code: 497816
    density:
      - value: 3900
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.45e-05
      - temperature_range: 293 573
        value: 1.7e-05
    dPgF: 0.0322
    resistance:
        climatic: 1.0