# 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 0.409982615 0.0621421199 2.37517176 185.055134 1.83913582 0.0136093459
  - type: tabulated k
    data: |
        0.370 7.4367E-06
        0.380 2.4416E-06
        0.390 1.0109E-06
        0.400 5.1731E-07
        0.420 2.4615E-07
        0.440 1.6489E-07
        0.460 1.2284E-07
        0.480 1.0063E-07
        0.500 8.4446E-08
        0.550 5.2839E-08
        0.600 4.7987E-08
        0.650 5.1986E-08
        0.700 3.9130E-08
        0.800 3.8312E-08
        0.850 2.0323E-08
        0.900 2.1518E-08
        0.950 2.2714E-08
        1.000 2.3909E-08
        1.060 2.5344E-08
        1.200 1.9118E-08
        1.400 5.5844E-08
        1.600 1.0227E-07
        1.800 3.0401E-07
        2.000 5.5054E-07
        2.200 1.1019E-06
        2.400 2.2256E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -6.18e-06 1.63e-08 -4.5e-11 1.12e-06 1.19e-09 0.291
    nd: 1.846660
    Vd: 23.784497
    glass_code: 847238
    density:
      - value: 3510
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.8e-06
      - temperature_range: 293 573
        value: 1.08e-05
    dPgF: 0.0155
    resistance:
        climatic: 1.0