# 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: 2.9717137 -0.014952593 2 0.020162868 -2 0.00094072283 -4 -8.8614104e-05 -6 5.3191242e-06 -8
  - type: tabulated k
    data: |
        0.280 1.0261E-05
        0.290 8.0922E-06
        0.300 6.0297E-06
        0.310 7.9406E-06
        0.320 3.3342E-06
        0.330 2.3414E-06
        0.340 1.5209E-06
        0.350 9.9342E-07
        0.360 6.3926E-07
        0.370 4.1004E-07
        0.380 2.5214E-07
        0.390 1.7885E-07
        0.400 1.1340E-07
        0.420 7.7770E-08
        0.440 5.6476E-08
        0.460 4.7899E-08
        0.480 2.2987E-08
        0.500 1.5947E-08
        0.550 1.7542E-08
        0.600 1.9137E-08
        0.650 2.0732E-08
        0.700 2.2326E-08
        0.750 1.7932E-08
        0.780 1.2427E-08
        0.800 1.2745E-08
        0.830 1.3223E-08
        0.850 1.3542E-08
        0.900 7.1656E-09
        0.950 7.5636E-09
        1.000 7.9617E-09
        1.050 1.6728E-08
        1.060 8.4394E-09
        1.100 8.7579E-09
        1.200 9.5541E-09
        1.300 1.0350E-08
        1.400 7.8260E-08
        1.500 8.3850E-08
        1.550 9.9073E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 9.22223e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.74100
    Vd: 52.60
    glass_code: 741526
    glass_status: special
    density:
      - value: 4190
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.2e-06
      - temperature_range: 293 573
        value: 7.1e-06
    dPgF: -0.0091
    resistance:
        climatic: 1.0
        stain: 2.0
        acid: 4.0