# 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: 2.813412 -0.01332448 2 0.01927865 -2 0.0004124452 -4 -9.940432e-06 -6 9.622024e-07 -8
  - type: tabulated k
    data: |
        0.290 7.7365E-06
        0.300 5.5945E-06
        0.310 4.0202E-06
        0.320 2.7397E-06
        0.330 1.7837E-06
        0.340 1.1079E-06
        0.350 6.5301E-07
        0.360 3.6622E-07
        0.370 2.0104E-07
        0.380 1.1401E-07
        0.390 6.9040E-08
        0.400 4.8108E-08
        0.420 2.6846E-08
        0.440 1.7551E-08
        0.460 1.0998E-08
        0.480 3.8216E-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 5.9713E-09
        0.780 6.2101E-09
        0.800 6.3694E-09
        0.830 6.6082E-09
        0.850 6.7675E-09
        0.900 7.1656E-09
        0.950 7.5636E-09
        1.000 7.9617E-09
        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 3.3473E-08
        1.500 3.5864E-08
        1.550 3.7059E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.06e-06 7.53e-09 -3.42e-11 7.88e-07 1.05e-09 4.45e-10
    nd: 1.69350
    Vd: 53.20
    glass_code: 694532
    glass_status: standard
    density:
      - value: 3520
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.5e-06
      - temperature_range: 293 573
        value: 8.6e-06
    dPgF: -0.0059
    resistance:
        climatic: 1.0
        stain: 4.0
        acid: 4.0