# 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: 3.1729223 -0.014248534 2 0.029168114 -2 0.001342876 -4 -9.6178753e-05 -6 8.4042556e-06 -8
  - type: tabulated k
    data: |
        0.340 7.8475E-06
        0.350 3.4962E-06
        0.360 1.5067E-06
        0.370 7.7721E-07
        0.380 4.7018E-07
        0.390 2.9952E-07
        0.400 2.1053E-07
        0.420 1.2601E-07
        0.440 9.2241E-08
        0.460 6.2765E-08
        0.480 3.8389E-08
        0.500 2.7950E-08
        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 1.0350E-08
        1.400 3.3473E-08
        1.500 4.7842E-08
        1.550 3.7059E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 6.67424e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.80610
    Vd: 40.73
    glass_code: 806407
    glass_status: standard
    density:
      - value: 4380
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.7e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.0078
    resistance:
        climatic: 1.0
        stain: 2.0
        acid: 3.0