# 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: 3.1819698 -0.014926522 2 0.028987649 -2 0.0012223654 -4 -5.2916688e-05 -6 4.7807227e-06 -8
  - type: tabulated k
    data: |
        0.340 5.2812E-06
        0.350 2.2178E-06
        0.360 9.6908E-07
        0.370 4.8545E-07
        0.380 2.7193E-07
        0.390 1.7557E-07
        0.400 1.2001E-07
        0.420 7.4350E-08
        0.440 5.2919E-08
        0.460 4.0489E-08
        0.480 2.2987E-08
        0.500 1.9944E-08
        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 1.2427E-08
        0.800 6.3694E-09
        0.830 1.3223E-08
        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 3.3473E-08
        1.500 3.5864E-08
        1.550 3.7059E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 9.98837e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.80834
    Vd: 40.92
    glass_code: 808409
    glass_status: standard
    density:
      - value: 4670
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.2e-06
      - temperature_range: 293 573
        value: 8e-06
    dPgF: -0.0061
    resistance:
        climatic: 1.0
        stain: 3.0
        acid: 3.0