# 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: 0.302 2.325
    coefficients: 0 1.13018444 81.4541493 1.60589 0.00817222723 0.207868982 0.030380314
  - type: tabulated k
    data: |
        0.320 9.9619E-06
        0.330 3.9762E-06
        0.340 1.6672E-06
        0.350 7.6436E-07
        0.360 4.2210E-07
        0.370 2.3911E-07
        0.380 1.5193E-07
        0.390 1.0414E-07
        0.400 7.7326E-08
        0.420 5.7307E-08
        0.440 4.5817E-08
        0.460 3.6790E-08
        0.480 2.6832E-08
        0.500 2.3945E-08
        0.550 1.3150E-08
        0.600 9.5589E-09
        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 2.2304E-08
        1.600 2.5490E-08
        1.800 2.3104E-07
        2.000 7.6618E-07
        2.200 2.7835E-06
        2.400 1.0077E-05
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.73e-06 1.81e-08 4.81e-11 6.35e-07 -7.14e-10 0.117
    nd: 1.693500
    Vd: 53.380441
    glass_code: 694534
    density:
      - value: 3590
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.6e-06
      - temperature_range: 293 573
        value: 7.3e-06
    dPgF: -0.0082
    resistance:
        climatic: 1.0