# 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: 3.2615573 -0.014542851 2 0.033470739 -2 0.0012266479 -4 -2.5391842e-05 -6 5.5971739e-06 -8
  - type: tabulated k
    data: |
        0.350 7.0001E-06
        0.360 3.1935E-06
        0.370 1.4796E-06
        0.380 7.8643E-07
        0.390 4.7169E-07
        0.400 3.1422E-07
        0.420 1.7144E-07
        0.440 1.1026E-07
        0.460 7.3953E-08
        0.480 4.6114E-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 4.4653E-08
        1.500 8.3850E-08
        1.550 4.9437E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 7.46689e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.83400
    Vd: 37.34
    glass_code: 834373
    glass_status: standard
    density:
      - value: 4570
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.9e-06
      - temperature_range: 293 573
        value: 7.3e-06
    dPgF: -0.0021
    resistance:
        climatic: 1.0
        stain: 3.0
        acid: 3.0