# 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: 0.365 2.325
    coefficients: 0 0.384732155 0.0355326885 1.8424092 0.00916902591 1.21280764 95.9091697
  - type: tabulated k
    data: |
        0.340 6.6697E-06
        0.350 2.6012E-06
        0.360 1.1687E-06
        0.370 6.0594E-07
        0.380 3.5239E-07
        0.390 2.3860E-07
        0.400 1.6998E-07
        0.420 1.0870E-07
        0.440 8.5059E-08
        0.460 6.2765E-08
        0.480 4.9982E-08
        0.500 2.7950E-08
        0.550 2.6340E-08
        0.600 2.8734E-08
        0.650 2.0732E-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 3.8255E-08
        1.800 1.1505E-07
        2.000 4.3563E-07
        2.200 1.1205E-06
        2.400 4.6476E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.38e-06 1.46e-08 -1.77e-11 7.39e-07 6.32e-10 0.229
    nd: 1.821310
    Vd: 42.674895
    glass_code: 821427
    density:
      - value: 4920
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.6e-06
      - temperature_range: 293 573
        value: 8.5e-06
    dPgF: -0.0068
    resistance:
        climatic: 1.0