# 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>
DATA:
  - type: formula 2
    wavelength_range: 0.4047 2.325
    coefficients: 0 1.73521591 0.0131087904 0.316277446 0.0621421663 2.16384634 178.845558
  - type: tabulated k
    data: |
        0.370 7.8298E-06
        0.380 2.9259E-06
        0.390 1.3369E-06
        0.400 6.7075E-07
        0.420 2.8232E-07
        0.440 1.5755E-07
        0.460 1.0773E-07
        0.480 8.4972E-08
        0.500 6.8222E-08
        0.550 3.5155E-08
        0.600 2.8734E-08
        0.650 2.5928E-08
        0.700 2.2326E-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 2.2304E-08
        1.600 2.5490E-08
        1.800 1.8743E-07
        2.000 4.1928E-07
        2.200 1.0089E-06
        2.400 1.8222E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -5.4e-06 1.34e-08 -3.56e-11 1.01e-06 1.25e-09 0.291
    nd: 1.784720
    Vd: 25.720045
    glass_code: 785257
    glass_status: standard
    density:
      - value: 3250
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.6e-06
      - temperature_range: 293 573
        value: 1.06e-05
    dPgF: 0.0138
    resistance:
        climatic: 1.0