# 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: 2.468781 -0.01062639 2 0.01325184 -2 0.0004048612 -4 -2.974799e-05 -6 1.825884e-06 -8
  - type: tabulated k
    data: |
        0.280 9.3577E-06
        0.290 5.7718E-06
        0.300 3.3773E-06
        0.310 1.8943E-06
        0.320 9.9334E-07
        0.330 5.3398E-07
        0.340 2.7307E-07
        0.350 1.2533E-07
        0.360 6.6660E-08
        0.370 3.2567E-08
        0.380 2.7339E-08
        0.390 1.8677E-08
        0.400 3.1847E-09
        0.420 3.3439E-09
        0.440 7.0098E-09
        0.460 3.6624E-09
        0.480 1.1476E-08
        0.500 1.1955E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 1.0355E-08
        0.700 1.6736E-08
        0.750 2.3921E-08
        0.780 3.7354E-08
        0.800 4.4720E-08
        0.830 5.3052E-08
        0.850 5.4330E-08
        0.900 6.4750E-08
        0.950 6.8347E-08
        1.000 7.1944E-08
        1.050 7.5541E-08
        1.060 8.4777E-08
        1.100 7.9138E-08
        1.200 7.6702E-08
        1.300 8.3093E-08
        1.400 2.1371E-07
        1.500 1.3203E-07
        1.550 1.2397E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.36e-06 1.02e-08 -4.81e-11 6.1e-07 6.81e-10 4.77e-09
    nd: 1.58313
    Vd: 59.46
    glass_code: 583595
    glass_status: standard
    density:
      - value: 3010
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.9e-06
      - temperature_range: 293 573
        value: 9e-06
    dPgF: -0.0008
    resistance:
        climatic: 1.0
        stain: 3.0
        acid: 3.0