# 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: 2.9324178 -0.014603156 2 0.021121636 -2 4.8240144e-05 -4 4.9669475e-05 -6 -2.4904491e-06 -8
  - type: tabulated k
    data: |
        0.280 3.8458E-06
        0.290 2.5376E-06
        0.300 1.8178E-06
        0.310 1.4216E-06
        0.320 9.4860E-07
        0.330 6.3569E-07
        0.340 4.3018E-07
        0.350 2.6880E-07
        0.360 1.8336E-07
        0.370 1.2019E-07
        0.380 8.2769E-08
        0.390 5.6372E-08
        0.400 3.5208E-08
        0.420 2.6846E-08
        0.440 1.7551E-08
        0.460 1.0998E-08
        0.480 7.6471E-09
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 4.7770E-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 6.6082E-09
        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 2.0711E-08
        1.400 2.0236E-07
        1.500 2.0467E-07
        1.550 1.7390E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.78e-06 1.02e-08 -2.66e-11 4.13e-07 1.53e-10 0.202
    nd: 1.72916
    Vd: 54.67
    glass_code: 729547
    glass_status: standard
    density:
      - value: 4050
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.6e-06
      - temperature_range: 293 573
        value: 7.3e-06
    dPgF: -0.0046
    resistance:
        climatic: 1.0
        stain: 3.0
        acid: 4.0