# 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: 3.771581 -0.020445364 2 0.063942579 -2 0.008354547 -4 -0.00082031984 -6 0.00010279507 -8
  - type: tabulated k
    data: |
        0.400 1.0956E-05
        0.420 2.6172E-06
        0.440 8.9700E-07
        0.460 4.5134E-07
        0.480 2.8542E-07
        0.500 1.8737E-07
        0.550 7.0594E-08
        0.600 3.3540E-08
        0.650 4.1547E-08
        0.700 2.7922E-08
        0.750 1.1949E-08
        0.780 2.4878E-08
        0.800 1.2745E-08
        0.830 2.6473E-08
        0.850 1.3542E-08
        0.900 1.4338E-08
        0.950 1.5135E-08
        1.000 1.5931E-08
        1.050 1.6728E-08
        1.060 3.3809E-08
        1.100 1.7525E-08
        1.200 9.5541E-09
        1.300 2.0711E-08
        1.400 3.3473E-08
        1.500 7.1835E-08
        1.550 6.1827E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.17e-07 1.14e-08 -3.07e-11 1.84e-06 2.48e-09 0.308
    nd: 2.00178
    Vd: 19.32
    glass_status: standard
    density:
      - value: 5090
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.9e-06
      - temperature_range: 293 573
        value: 1.01e-05
    dPgF: 0.0312
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 1.0