# 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: 2.8306733 -0.014855863 2 0.018103472 -2 0.00053539971 -4 -3.1929778e-05 -6 2.0340983e-06 -8
  - type: tabulated k
    data: |
        0.280 7.8887E-06
        0.290 5.8872E-06
        0.300 4.5290E-06
        0.310 3.5830E-06
        0.320 2.2954E-06
        0.330 1.5226E-06
        0.340 9.6890E-07
        0.350 5.9724E-07
        0.360 3.4675E-07
        0.370 2.1367E-07
        0.380 1.3607E-07
        0.390 9.4531E-08
        0.400 7.0810E-08
        0.420 4.3734E-08
        0.440 3.5190E-08
        0.460 2.2030E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 4.3790E-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 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 2.2304E-08
        1.500 2.3897E-08
        1.550 2.4694E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.13456e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.69760
    Vd: 55.51
    glass_code: 698555
    glass_status: standard
    density:
      - value: 3700
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.5e-06
      - temperature_range: 293 573
        value: 8e-06
    dPgF: -0.0059
    resistance:
        climatic: 1.0
        stain: 5.0
        acid: 4.0