# 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: 0.302 2.325
    coefficients: 0 0.786703112 0.00202073208 1.21770392 86.703479 1.04086924 0.0163643393
  - type: tabulated k
    data: |
        0.290 7.3714E-06
        0.300 4.6265E-06
        0.310 3.1053E-06
        0.320 2.1022E-06
        0.330 1.4035E-06
        0.340 9.1145E-07
        0.350 5.7661E-07
        0.360 3.5322E-07
        0.370 2.2319E-07
        0.380 1.4557E-07
        0.390 1.0414E-07
        0.400 8.0589E-08
        0.420 6.4114E-08
        0.440 5.2919E-08
        0.460 4.0489E-08
        0.480 3.0681E-08
        0.500 2.3945E-08
        0.550 2.6340E-08
        0.600 2.8734E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
        0.800 2.5516E-08
        0.850 2.7111E-08
        0.900 2.1518E-08
        0.950 2.2714E-08
        1.000 1.5931E-08
        1.060 1.6887E-08
        1.200 1.9118E-08
        1.400 4.4653E-08
        1.600 6.3822E-08
        1.800 1.8743E-07
        2.000 6.3313E-07
        2.200 2.0402E-06
        2.400 9.1606E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -1.86e-07 1.39e-08 -1.79e-11 4.74e-07 4.36e-10 0.167
    nd: 1.696800
    Vd: 56.175305
    glass_code: 697562
    density:
      - value: 3710
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.4e-06
      - temperature_range: 293 573
        value: 8e-06
    dPgF: -0.0071
    resistance:
        climatic: 1.0