# 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: 3.0209214 -0.0157801 2 0.02114253 -2 0.00095556554 -4 -7.4489819e-05 -6 4.360632e-06 -8
  - type: tabulated k
    data: |
        0.280 8.8309E-06
        0.290 6.4170E-06
        0.300 5.2913E-06
        0.310 4.4152E-06
        0.320 2.8542E-06
        0.330 1.8573E-06
        0.340 1.2330E-06
        0.350 7.8644E-07
        0.360 4.7571E-07
        0.370 2.8416E-07
        0.380 1.7747E-07
        0.390 1.1701E-07
        0.400 8.0589E-08
        0.420 4.3734E-08
        0.440 2.8124E-08
        0.460 1.8349E-08
        0.480 7.6471E-09
        0.500 3.9809E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
        0.750 1.1949E-08
        0.780 1.8649E-08
        0.800 6.3694E-09
        0.830 2.6473E-08
        0.850 4.7515E-08
        0.900 3.5900E-08
        0.950 3.0300E-08
        1.000 3.1895E-08
        1.050 3.3490E-08
        1.060 3.3809E-08
        1.100 3.5084E-08
        1.200 4.7866E-08
        1.300 5.1855E-08
        1.400 7.8260E-08
        1.500 4.7842E-08
        1.550 4.9437E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.37335e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.75591
    Vd: 51.18
    glass_code: 756512
    glass_status: standard
    density:
      - value: 4410
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.2e-06
      - temperature_range: 293 573
        value: 7.7e-06
    dPgF: -0.0079
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 4.0