# 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: 2.5807045 -0.010957538 2 0.01268943 -2 0.00066387812 -4 -6.4849664e-05 -6 3.4787863e-06 -8
  - type: tabulated k
    data: |
        0.280 7.8887E-06
        0.290 5.4813E-06
        0.300 3.9900E-06
        0.310 2.8576E-06
        0.320 1.9390E-06
        0.330 1.2723E-06
        0.340 7.7116E-07
        0.350 4.6250E-07
        0.360 2.4823E-07
        0.370 1.3557E-07
        0.380 7.3460E-08
        0.390 3.4328E-08
        0.400 2.2360E-08
        0.420 1.0042E-08
        0.440 1.4034E-08
        0.460 1.0998E-08
        0.480 3.8216E-09
        0.500 3.9809E-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 1.2745E-08
        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 1.0350E-08
        1.400 6.7046E-08
        1.500 9.5877E-08
        1.550 8.6645E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -8.93e-06 1.28e-08 -1.34e-11 5.36e-07 -8.84e-11 2.93e-09
    nd: 1.61800
    Vd: 63.40
    glass_code: 618634
    glass_status: standard
    density:
      - value: 3520
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.7e-06
      - temperature_range: 293 573
        value: 1.11e-05
    dPgF: 0.006
    resistance:
        climatic: 1.0
        stain: 3.0
        acid: 5.0