# 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: |
    Preforms for Precision molding
DATA:
  - type: formula 3
    wavelength_range: 0.36501 1.01398
    coefficients: 3.0591566 -0.013604717 2 0.024624272 -2 0.00041834242 -4 2.5361908e-06 -6 7.998082e-07 -8
  - type: tabulated k
    data: |
        0.280 5.8937E-06
        0.290 3.7491E-06
        0.300 2.9144E-06
        0.310 3.0622E-06
        0.320 1.5550E-06
        0.330 1.0595E-06
        0.340 7.0716E-07
        0.350 4.5265E-07
        0.360 2.8596E-07
        0.370 1.6968E-07
        0.380 1.1087E-07
        0.390 7.5393E-08
        0.400 5.4578E-08
        0.420 3.6968E-08
        0.440 2.8124E-08
        0.460 2.2030E-08
        0.480 1.5310E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.750 1.1949E-08
        0.780 1.2427E-08
        0.800 1.2745E-08
        0.830 1.3223E-08
        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 8.9485E-08
        1.500 9.5877E-08
        1.550 8.6645E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.69243e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.76902
    Vd: 49.29
    glass_code: 769493
    glass_status: standard
    density:
      - value: 4560
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.9e-06
      - temperature_range: 293 573
        value: 7.4e-06
    dPgF: -0.008
    resistance:
        climatic: 1.0
        stain: 2.0
        acid: 4.0