# 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 0.616886534 0.000249888602 1.11924765 0.0158113883 1.29814839 102.017679
  - type: tabulated k
    data: |
        0.280 5.6278E-06
        0.290 4.2291E-06
        0.300 3.1258E-06
        0.310 2.1400E-06
        0.320 1.4314E-06
        0.330 8.9940E-07
        0.340 5.3364E-07
        0.350 3.0897E-07
        0.360 1.8642E-07
        0.370 1.1101E-07
        0.380 4.2634E-08
        0.390 3.1191E-08
        0.400 4.4878E-08
        0.420 3.3591E-08
        0.440 2.8124E-08
        0.460 2.5714E-08
        0.480 2.2987E-08
        0.500 1.9944E-08
        0.550 1.7542E-08
        0.600 1.9137E-08
        0.650 1.5541E-08
        0.700 1.6736E-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 8.6203E-08
        2.000 3.8663E-07
        2.200 1.3082E-06
        2.400 5.7507E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.1e-06 1.31e-08 -3.75e-11 5.42e-07 6.96e-10 0.177
    nd: 1.669100
    Vd: 55.389689
    glass_code: 669554
    density:
      - value: 3350
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.3e-06
      - temperature_range: 293 573
        value: 9.1e-06
    dPgF: -0.0066
    resistance:
        climatic: 1.0