# 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 3.9482E-06
        0.290 2.4828E-06
        0.300 1.9010E-06
        0.310 1.7800E-06
        0.320 9.9334E-07
        0.330 6.6936E-07
        0.340 4.3336E-07
        0.350 2.6574E-07
        0.360 1.5903E-07
        0.370 9.2720E-08
        0.380 5.8008E-08
        0.390 3.7468E-08
        0.400 2.5567E-08
        0.420 1.6753E-08
        0.440 1.4034E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 8.7623E-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 1.4338E-08
        0.950 2.2714E-08
        1.000 2.3909E-08
        1.050 2.5105E-08
        1.060 2.5344E-08
        1.100 2.6300E-08
        1.200 2.8691E-08
        1.300 4.1463E-08
        1.400 1.3450E-07
        1.500 1.4411E-07
        1.550 1.3643E-07
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