# 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: 3.4286062 -0.013845333 2 0.037363009 -2 0.0011894554 -4 -1.5979979e-05 -6 5.1827398e-06 -8
  - type: tabulated k
    data: |
        0.350 8.8965E-06
        0.360 3.8923E-06
        0.370 1.6499E-06
        0.380 8.7397E-07
        0.390 5.1535E-07
        0.400 3.4245E-07
        0.420 1.8554E-07
        0.440 1.2475E-07
        0.460 9.2677E-08
        0.480 7.3273E-08
        0.500 5.6098E-08
        0.550 3.0745E-08
        0.600 2.8734E-08
        0.650 3.1129E-08
        0.700 2.7922E-08
        0.750 2.3921E-08
        0.780 2.4878E-08
        0.800 2.5516E-08
        0.830 1.3223E-08
        0.850 1.3542E-08
        0.900 2.1518E-08
        0.950 2.2714E-08
        1.000 2.3909E-08
        1.050 2.5105E-08
        1.060 1.6887E-08
        1.100 2.6300E-08
        1.200 1.9118E-08
        1.300 3.1082E-08
        1.400 4.4653E-08
        1.500 7.1835E-08
        1.550 6.1827E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 7.80622e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.88202
    Vd: 37.22
    glass_code: 882372
    glass_status: standard
    density:
      - value: 5490
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.7e-06
      - temperature_range: 293 573
        value: 7.3e-06
    dPgF: -0.0044
    resistance:
        climatic: 1.0
        stain: 2.0
        acid: 3.0