# 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 0.470478653 0.0736024509 2.55040233 149.306621 2.00593441 0.0162999226
  - type: tabulated k
    data: |
        0.390 7.7244E-06
        0.400 2.4033E-06
        0.420 4.7314E-07
        0.440 2.6919E-07
        0.460 2.0708E-07
        0.480 1.7188E-07
        0.500 1.3352E-07
        0.550 7.0594E-08
        0.600 4.7987E-08
        0.650 4.6764E-08
        0.700 4.4743E-08
        0.800 3.8312E-08
        0.850 3.3905E-08
        0.900 2.8705E-08
        0.950 2.2714E-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 1.7293E-07
        2.000 3.3778E-07
        2.200 6.9645E-07
        2.400 1.2224E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -5.63e-06 1.59e-08 -4.96e-11 1.13e-06 1.73e-09 0.328
    nd: 1.922860
    Vd: 18.895887
    glass_code: 923189
    density:
      - value: 3570
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.7e-06
      - temperature_range: 293 573
        value: 8.4e-06
    dPgF: 0.0363
    resistance:
        climatic: 1.0