# 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:4°C/h
DATA:
  - type: formula 2
    wavelength_range: 0.365 2.325
    coefficients: 0 0.26530456 0.0420844203 1.45255299 117.349274 1.65170478 0.00935611552
  - type: tabulated k
    data: |
        0.340 5.7367E-06
        0.350 2.2240E-06
        0.360 1.1048E-06
        0.370 6.5702E-07
        0.380 4.4205E-07
        0.390 3.0637E-07
        0.400 2.1393E-07
        0.420 1.3296E-07
        0.440 9.9438E-08
        0.460 7.3953E-08
        0.480 5.3854E-08
        0.500 3.9989E-08
        0.550 2.6340E-08
        0.600 2.3933E-08
        0.650 2.0732E-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 8.6203E-08
        2.000 3.5405E-07
        2.200 1.0089E-06
        2.400 4.0009E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.730770
    Vd: 40.508021
    glass_code: 731405
    density:
      - value: 3210
    thermal_expansion:
      - temperature_range: 243 343
        value: 9e-06
      - temperature_range: 293 573
        value: 1.11e-05
    dPgF: -0.0047
    resistance:
        climatic: 3.0