# 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: 3.2722586 -0.018817211 2 0.027264508 -2 0.0032789193 -4 -0.00032827672 -6 2.1743362e-05 -8
  - type: tabulated k
    data: |
        0.350 6.1732E-06
        0.360 2.9189E-06
        0.370 1.4894E-06
        0.380 8.9016E-07
        0.390 5.8952E-07
        0.400 4.2141E-07
        0.420 2.4615E-07
        0.440 1.6122E-07
        0.460 1.1150E-07
        0.480 7.3273E-08
        0.500 4.4010E-08
        0.550 1.3150E-08
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
        0.750 1.7932E-08
        0.780 1.2427E-08
        0.800 1.9127E-08
        0.830 1.3223E-08
        0.850 1.3542E-08
        0.900 2.1518E-08
        0.950 2.2714E-08
        1.000 2.3909E-08
        1.050 1.6728E-08
        1.060 1.6887E-08
        1.100 1.7525E-08
        1.200 9.5541E-09
        1.300 1.0350E-08
        1.400 2.2304E-08
        1.500 2.3897E-08
        1.550 2.4694E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 8.48492e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.83461
    Vd: 37.29
    glass_code: 835373
    glass_status: standard
    density:
      - value: 4390
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.1e-06
      - temperature_range: 293 573
        value: 7.7e-06
    dPgF: -0.0047
    resistance:
        climatic: 1.0
        stain: 3.0
        acid: 3.0