# 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 1.31145759 0.00988576985 0.840047425 102.880258 0.132407269 0.047752793
  - type: tabulated k
    data: |
        0.310 9.6506E-06
        0.320 2.9015E-06
        0.330 8.6267E-07
        0.340 3.0922E-07
        0.350 1.4286E-07
        0.360 8.1359E-08
        0.370 5.6481E-08
        0.380 4.8774E-08
        0.390 3.7468E-08
        0.400 2.8778E-08
        0.420 3.0216E-08
        0.440 2.8124E-08
        0.460 2.5714E-08
        0.480 2.6832E-08
        0.500 2.3945E-08
        0.550 2.1939E-08
        0.600 2.3933E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
        0.800 2.5516E-08
        0.850 2.0323E-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 6.3822E-08
        1.800 5.4004E-07
        2.000 1.4661E-06
        2.200 3.2621E-06
        2.400 4.9917E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.74e-06 1.64e-08 -5.12e-11 8.26e-07 4.87e-10 0.234
    nd: 1.581440
    Vd: 40.885954
    glass_code: 581409
    density:
      - value: 3230
    thermal_expansion:
      - temperature_range: 243 343
        value: 9e-06
      - temperature_range: 293 573
        value: 1.11e-05
    dPgF: -0.0018
    resistance:
        climatic: 2.0