# 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: 3.173794 -0.01498658 2 0.02906741 -2 0.001204829 -4 -5.355158e-05 -6 5.27135e-06 -8
  - type: tabulated k
    data: |
        0.340 6.3687E-06
        0.350 3.0543E-06
        0.360 1.4396E-06
        0.370 7.3534E-07
        0.380 4.2808E-07
        0.390 2.7230E-07
        0.400 1.8681E-07
        0.420 1.0870E-07
        0.440 7.4313E-08
        0.460 5.1610E-08
        0.480 3.0681E-08
        0.500 1.5947E-08
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
        0.750 4.1925E-08
        0.780 4.9856E-08
        0.800 4.4720E-08
        0.830 5.9713E-08
        0.850 6.1152E-08
        0.900 6.4750E-08
        0.950 6.0722E-08
        1.000 6.3918E-08
        1.050 5.8695E-08
        1.060 4.2282E-08
        1.100 5.2679E-08
        1.200 3.8274E-08
        1.300 2.0711E-08
        1.400 7.8260E-08
        1.500 5.9833E-08
        1.550 6.1827E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.03293e-05 0.0 0.0 0.0 0.0 0.0
    nd: 1.80610
    Vd: 40.73
    glass_code: 806407
    glass_status: standard
    density:
      - value: 4560
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.8e-06
      - temperature_range: 293 573
        value: 7.4e-06
    dPgF: -0.0056
    resistance:
        climatic: 1.0
        stain: 3.0
        acid: 3.0