# 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>
COMMENTS: |
    anneal rate:25°C/h
DATA:
  - type: formula 2
    wavelength_range: 0.302 2.325
    coefficients: 0 1.08234297 107.907645 0.548438846 0.002190929 0.719999855 0.013407002
  - type: tabulated k
    data: |
        0.290 6.2727E-06
        0.300 3.3287E-06
        0.310 1.6903E-06
        0.320 8.1891E-07
        0.330 3.9607E-07
        0.340 1.7606E-07
        0.350 1.1370E-07
        0.360 5.4955E-08
        0.370 3.2567E-08
        0.380 2.4289E-08
        0.390 1.8677E-08
        0.400 1.2758E-08
        0.420 1.3396E-08
        0.440 1.4034E-08
        0.460 1.4672E-08
        0.480 1.5310E-08
        0.500 1.5947E-08
        0.550 1.7542E-08
        0.600 1.4345E-08
        0.650 1.0355E-08
        0.700 1.1152E-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 2.0236E-07
        1.600 6.3822E-08
        1.800 1.4396E-07
        2.000 3.5405E-07
        2.200 1.7282E-06
        2.400 3.2845E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.87e-06 1.55e-08 -1.35e-11 4.17e-07 5.2e-10 0.177
    nd: 1.515770
    Vd: 63.989637
    glass_code: 516640
    density:
      - value: 2410
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.3e-06
      - temperature_range: 293 573
        value: 7.8e-06
    dPgF: -0.0029
    resistance:
        climatic: 1.0