# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
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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>
DATA:
  - type: formula 2
    wavelength_range: 0.313 2.325
    coefficients: 0 0.231760668 0.0237840711 1.03993508 0.00615271269 0.966966878 117.740117
  - type: tabulated k
    data: |
        0.320 5.3992E-06
        0.330 2.3414E-06
        0.340 1.0435E-06
        0.350 5.0224E-07
        0.360 2.4823E-07
        0.370 1.2941E-07
        0.380 7.6560E-08
        0.390 4.6905E-08
        0.400 3.1991E-08
        0.420 2.3478E-08
        0.440 2.1072E-08
        0.460 2.2030E-08
        0.480 1.9146E-08
        0.500 1.9944E-08
        0.550 1.7542E-08
        0.600 1.9137E-08
        0.650 2.0732E-08
        0.700 1.6736E-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 8.9440E-08
        1.800 5.5492E-07
        2.000 1.5185E-06
        2.200 3.4957E-06
        2.400 5.2414E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -3.97e-06 2.28e-08 -5.39e-11 4.17e-07 -3.71e-10 0.254
    nd: 1.518180
    Vd: 58.949331
    glass_code: 518590
    density:
      - value: 2500
    thermal_expansion:
      - temperature_range: 243 343
        value: 9e-06
      - temperature_range: 293 573
        value: 1.08e-05
    resistance:
        climatic: 3.0