# 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: |
    General glass Type
DATA:
  - type: formula 3
    wavelength_range: 0.36501 1.01398
    coefficients: 3.275546 -0.014470354 2 0.030922062 -2 0.00073289981 -4 4.6573307e-06 -6 1.8242746e-06 -8
  - type: tabulated k
    data: |
        0.320 9.9619E-06
        0.330 4.3750E-06
        0.340 2.1069E-06
        0.350 1.0947E-06
        0.360 6.5362E-07
        0.370 3.8644E-07
        0.380 2.4557E-07
        0.390 1.7885E-07
        0.400 1.1340E-07
        0.420 7.4350E-08
        0.440 4.5817E-08
        0.460 4.4192E-08
        0.480 2.6832E-08
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 1.0355E-08
        0.700 1.6736E-08
        0.750 1.1949E-08
        0.780 1.2427E-08
        0.800 1.2745E-08
        0.830 2.6473E-08
        0.850 2.0323E-08
        0.900 2.1518E-08
        0.950 2.2714E-08
        1.000 1.5931E-08
        1.050 1.6728E-08
        1.060 1.6887E-08
        1.100 1.7525E-08
        1.200 1.9118E-08
        1.300 2.0711E-08
        1.400 5.5844E-08
        1.500 7.1835E-08
        1.550 7.4230E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.79e-06 8.81e-09 -2.5e-11 7.25e-07 7.24e-10 0.197
    nd: 1.83481
    Vd: 42.72
    glass_code: 835427
    density:
      - value: 4720
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.2e-06
      - temperature_range: 293 573
        value: 7.8e-06
    dPgF: -0.0062
    resistance:
        climatic: 2.0
        stain: 1.0
        acid: 3.0