# 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 1.04647517 0.0173536556 0.889910862 0.00298398431 1.23173612 87.1100488
  - type: tabulated k
    data: |
        0.280 2.7505E-06
        0.290 2.1671E-06
        0.300 1.7522E-06
        0.310 1.4614E-06
        0.320 9.3754E-07
        0.330 6.3904E-07
        0.340 4.2069E-07
        0.350 2.7187E-07
        0.360 1.6813E-07
        0.370 1.0185E-07
        0.380 6.4179E-08
        0.390 4.6905E-08
        0.400 3.5208E-08
        0.420 2.6846E-08
        0.440 1.7551E-08
        0.460 1.4672E-08
        0.480 1.1476E-08
        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 3.3473E-08
        1.600 5.1032E-08
        1.800 1.7293E-07
        2.000 5.8353E-07
        2.200 1.8640E-06
        2.400 8.2862E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.8e-06 1.72e-08 -5.24e-11 4.52e-07 1.37e-10 0.229
    nd: 1.730500
    Vd: 53.944268
    glass_code: 731539
    density:
      - value: 4000
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.1e-06
      - temperature_range: 293 573
        value: 7.8e-06
    dPgF: -0.0083
    resistance:
        climatic: 1.0