# 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 0.477723115 0.0226962287 1.33623366 0.00659605302 1.22543438 94.2027569
  - type: tabulated k
    data: |
        0.300 1.0994E-05
        0.310 4.5208E-06
        0.320 2.1492E-06
        0.330 1.1720E-06
        0.340 6.7225E-07
        0.350 3.8787E-07
        0.360 2.4511E-07
        0.370 1.5413E-07
        0.380 1.0460E-07
        0.390 8.1759E-08
        0.400 7.4066E-08
        0.420 6.7523E-08
        0.440 6.0036E-08
        0.460 4.7899E-08
        0.480 3.8389E-08
        0.500 2.3945E-08
        0.550 1.7542E-08
        0.600 1.9137E-08
        0.650 2.0732E-08
        0.700 2.2326E-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 5.7411E-08
        2.000 4.1928E-07
        2.200 1.4217E-06
        2.400 6.5411E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.33e-06 1.27e-08 -2.36e-11 5.62e-07 7.08e-10 0.199
    nd: 1.693840
    Vd: 53.128245
    glass_code: 694531
    density:
      - value: 3500
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.5e-06
      - temperature_range: 293 573
        value: 9.5e-06
    dPgF: -0.0082
    resistance:
        climatic: 1.0