# 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 0.406804868 0.064515213 1.70831097 0.0127703237 2.36137303 163.275585
  - type: tabulated k
    data: |
        0.370 1.1518E-05
        0.380 3.4174E-06
        0.390 1.0282E-06
        0.400 4.4328E-07
        0.420 1.9261E-07
        0.440 1.4293E-07
        0.460 1.1527E-07
        0.480 8.8880E-08
        0.500 7.2272E-08
        0.550 3.9569E-08
        0.600 3.3540E-08
        0.650 3.1129E-08
        0.700 2.7922E-08
        0.800 2.5516E-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 5.5844E-08
        1.600 1.0227E-07
        1.800 2.4560E-07
        2.000 5.1762E-07
        2.200 1.4788E-06
        2.400 2.9472E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -9.66e-06 1.15e-08 -5.06e-11 9.75e-07 1.26e-09 0.313
    nd: 1.808100
    Vd: 22.698087
    glass_code: 808227
    density:
      - value: 3300
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.3e-06
      - temperature_range: 293 573
        value: 1.05e-05
    dPgF: 0.0224
    resistance:
        climatic: 1.0