# 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: 3.0705638 -0.013310234 2 0.025280355 -2 0.00021829234 -4 3.2555293e-05 -6 -8.1300421e-07 -8
  - type: tabulated k
    data: |
        0.280 8.3104E-06
        0.290 5.3604E-06
        0.300 3.9273E-06
        0.310 3.7919E-06
        0.320 1.9335E-06
        0.330 1.3110E-06
        0.340 8.5520E-07
        0.350 5.3242E-07
        0.360 3.2741E-07
        0.370 1.8532E-07
        0.380 1.1715E-07
        0.390 7.2215E-08
        0.400 5.1341E-08
        0.420 3.0216E-08
        0.440 1.7551E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        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 5.9713E-09
        0.780 6.2101E-09
        0.800 6.3694E-09
        0.830 1.9845E-08
        0.850 1.3542E-08
        0.900 1.4338E-08
        0.950 1.5135E-08
        1.000 1.5931E-08
        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 6.7046E-08
        1.500 5.9833E-08
        1.550 7.4230E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.74e-06 9.55e-09 -5.15e-11 6.48e-07 3.61e-10 0.166
    nd: 1.77250
    Vd: 49.50
    glass_code: 773495
    glass_status: standard
    density:
      - value: 4620
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.7e-06
      - temperature_range: 293 573
        value: 7e-06
    dPgF: -0.0072
    resistance:
        climatic: 1.0
        stain: 2.0
        acid: 4.0