# 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: 3.1667902 -0.013141416 2 0.047178656 -2 0.0022684284 -4 -5.3672387e-05 -6 2.5328422e-05 -8
  - type: tabulated k
    data: |
        0.370 1.2365E-05
        0.380 4.8070E-06
        0.390 1.9645E-06
        0.400 9.7138E-07
        0.420 4.0832E-07
        0.440 2.5410E-07
        0.460 1.8006E-07
        0.480 1.3609E-07
        0.500 1.0074E-07
        0.550 4.3988E-08
        0.600 3.3540E-08
        0.650 4.1547E-08
        0.700 3.3523E-08
        0.750 2.3921E-08
        0.780 1.2427E-08
        0.800 1.9127E-08
        0.830 6.6082E-09
        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 8.4394E-09
        1.100 8.7579E-09
        1.200 9.5541E-09
        1.300 1.0350E-08
        1.400 5.5844E-08
        1.500 9.5877E-08
        1.550 8.6645E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.8056e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.82165
    Vd: 24.04
    glass_code: 822240
    glass_status: standard
    density:
      - value: 3690
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.5e-06
      - temperature_range: 293 573
        value: 1.21e-05
    dPgF: 0.0187
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 1.0