# 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: 3.0591566 -0.013604717 2 0.024624272 -2 0.00041834242 -4 2.5361908e-06 -6 7.998082e-07 -8
  - type: tabulated k
    data: |
        0.280 7.6694E-06
        0.290 5.0114E-06
        0.300 3.9027E-06
        0.310 3.3517E-06
        0.320 2.1373E-06
        0.330 1.3371E-06
        0.340 8.9257E-07
        0.350 5.7318E-07
        0.360 3.5322E-07
        0.370 2.1367E-07
        0.380 1.3923E-07
        0.390 9.4531E-08
        0.400 6.7557E-08
        0.420 4.7122E-08
        0.440 3.5190E-08
        0.460 2.5714E-08
        0.480 1.5310E-08
        0.500 3.9809E-09
        0.550 4.3790E-09
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.750 1.1949E-08
        0.780 1.2427E-08
        0.800 1.2745E-08
        0.830 1.9845E-08
        0.850 2.0323E-08
        0.900 2.1518E-08
        0.950 2.2714E-08
        1.000 2.3909E-08
        1.050 1.6728E-08
        1.060 8.4394E-09
        1.100 1.7525E-08
        1.200 9.5541E-09
        1.300 1.0350E-08
        1.400 2.2304E-08
        1.500 4.7842E-08
        1.550 3.7059E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.69243e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.76902
    Vd: 49.29
    glass_code: 769493
    glass_status: standard
    density:
      - value: 4560
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.9e-06
      - temperature_range: 293 573
        value: 7.4e-06
    dPgF: -0.008
    resistance:
        climatic: 1.0
        stain: 2.0
        acid: 4.0