# 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: |
    Not in a position to accept new order because of discontinuation.
DATA:
  - type: formula 3
    wavelength_range: 0.36501 1.01398
    coefficients: 2.975245 -0.01425016 2 0.02140074 -2 0.0009755337 -4 -6.97953e-05 -6 4.114924e-06 -8
  - type: tabulated k
    data: |
        0.280 7.6694E-06
        0.290 4.6731E-06
        0.300 3.3095E-06
        0.310 2.7575E-06
        0.320 1.6603E-06
        0.330 1.1394E-06
        0.340 7.5323E-07
        0.350 4.9225E-07
        0.360 2.9865E-07
        0.370 1.8846E-07
        0.380 1.2030E-07
        0.390 8.8138E-08
        0.400 6.1061E-08
        0.420 4.3734E-08
        0.440 3.1655E-08
        0.460 2.5714E-08
        0.480 1.9146E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        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 5.1855E-08
        1.400 1.2323E-07
        1.500 7.1835E-08
        1.550 6.1827E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.12394e-05 0.0 0.0 0.0 0.0 0.0
    nd: 1.74330
    Vd: 49.33
    glass_code: 743493
    glass_status: special
    density:
      - value: 4250
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.7e-06
      - temperature_range: 293 573
        value: 7.3e-06
    dPgF: -0.0068
    resistance:
        climatic: 1.0
        stain: 4.0
        acid: 4.0