# 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: 3.07279 -0.01366385 2 0.02527346 -2 0.000612182 -4 -1.147045e-05 -6 1.543e-06 -8
  - type: tabulated k
    data: |
        0.320 5.5977E-06
        0.330 2.9035E-06
        0.340 1.5688E-06
        0.350 8.9184E-07
        0.360 4.9949E-07
        0.370 2.8741E-07
        0.380 1.7747E-07
        0.390 1.2023E-07
        0.400 8.0589E-08
        0.420 5.3908E-08
        0.440 4.2271E-08
        0.460 3.3094E-08
        0.480 3.4533E-08
        0.500 3.5972E-08
        0.550 3.9569E-08
        0.600 4.3166E-08
        0.650 4.6764E-08
        0.700 5.0361E-08
        0.750 4.1925E-08
        0.780 4.3602E-08
        0.800 5.1134E-08
        0.830 5.3052E-08
        0.850 4.7515E-08
        0.900 4.3101E-08
        0.950 3.7894E-08
        1.000 4.7890E-08
        1.050 4.1883E-08
        1.060 4.2282E-08
        1.100 4.3877E-08
        1.200 3.8274E-08
        1.300 4.1463E-08
        1.400 5.5844E-08
        1.500 5.9833E-08
        1.550 7.4230E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 8.39412e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.77377
    Vd: 47.17
    glass_code: 774472
    glass_status: standard
    density:
      - value: 4620
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.1e-06
      - temperature_range: 293 573
        value: 7.7e-06
    dPgF: -0.0078
    resistance:
        climatic: 1.0
        stain: 2.0
        acid: 3.0