# 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/2017/hoya_2017-04-01.agf">HOYA Zemax catalog 2017-04-01</a> (obtained from <a href="http://www.hoya-opticalworld.com/english/datadownload/">http://www.hoya-opticalworld.com</a>)
COMMENTS: |
    Recommended glass type
DATA:
  - type: formula 3
    wavelength_range: 0.36501 1.01398
    coefficients: 2.8255229 -0.013632902 2 0.019791402 -2 1.5032564e-05 -4 4.0761368e-05 -6 -1.7527267e-06 -8
  - type: tabulated k
    data: |
        0.280 3.2650E-06
        0.290 2.3322E-06
        0.300 1.6981E-06
        0.310 1.2519E-06
        0.320 9.0463E-07
        0.330 6.1238E-07
        0.340 3.9865E-07
        0.350 2.6268E-07
        0.360 1.8031E-07
        0.370 1.1101E-07
        0.380 7.9663E-08
        0.390 5.3213E-08
        0.400 4.4878E-08
        0.420 3.3591E-08
        0.440 2.8124E-08
        0.460 1.8349E-08
        0.480 1.1476E-08
        0.500 1.1955E-08
        0.550 4.3790E-09
        0.600 9.5589E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
        0.750 5.9713E-09
        0.780 6.2101E-09
        0.800 6.3694E-09
        0.830 1.3223E-08
        0.850 6.7675E-09
        0.900 7.1656E-09
        0.950 7.5636E-09
        1.000 7.9617E-09
        1.050 8.3598E-09
        1.060 8.4394E-09
        1.100 8.7579E-09
        1.200 9.5541E-09
        1.300 1.0350E-08
        1.400 7.8260E-08
        1.500 8.3850E-08
        1.550 7.4230E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.05e-06 1.07e-08 -2.21e-11 4.35e-07 4.49e-10 0.185
    nd: 1.69680
    Vd: 55.46
    glass_code: 697555
    glass_status: standard
    density:
      - value: 3670
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.6e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.0059
    resistance:
        climatic: 1.0
        acid: 4.0