# 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 1.85743559 0.00962363637 0.323469816 0.0398398385 1.2894946 98.4654718
  - type: tabulated k
    data: |
        0.340 6.8337E-06
        0.350 2.6949E-06
        0.360 1.2785E-06
        0.370 6.9405E-07
        0.380 4.2112E-07
        0.390 2.8248E-07
        0.400 2.0713E-07
        0.420 1.3296E-07
        0.440 9.9438E-08
        0.460 7.3953E-08
        0.480 5.7730E-08
        0.500 3.9989E-08
        0.550 2.1939E-08
        0.600 2.3933E-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 4.4653E-08
        1.600 2.5490E-08
        1.800 1.1505E-07
        2.000 5.0119E-07
        2.200 1.3838E-06
        2.400 5.4943E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.23e-06 1.56e-08 -3.55e-11 8.33e-07 7.37e-10 0.217
    nd: 1.808820
    Vd: 40.970313
    glass_code: 809410
    density:
      - value: 4560
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.6e-06
      - temperature_range: 293 573
        value: 8.3e-06
    dPgF: -0.0058
    resistance:
        climatic: 1.0