# 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: |
    General glass Type
DATA:
  - type: formula 3
    wavelength_range: 0.36501 1.01398
    coefficients: 2.6399644 -0.011645718 2 0.023061733 -2 0.0017348219 -4 -0.00013986059 -6 1.391667e-05 -8
  - type: tabulated k
    data: |
        0.360 5.9802E-06
        0.370 2.0645E-06
        0.380 7.9428E-07
        0.390 3.5818E-07
        0.400 1.8007E-07
        0.420 8.4619E-08
        0.440 6.0036E-08
        0.460 5.1610E-08
        0.480 3.4533E-08
        0.500 2.3945E-08
        0.550 1.7542E-08
        0.600 1.4345E-08
        0.650 2.0732E-08
        0.700 2.2326E-08
        0.750 1.1949E-08
        0.780 1.2427E-08
        0.800 1.2745E-08
        0.830 1.3223E-08
        0.850 1.3542E-08
        0.900 1.4338E-08
        0.950 1.5135E-08
        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 4.4653E-08
        1.500 4.7842E-08
        1.550 6.1827E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.64769
    Vd: 33.84
    glass_code: 648338
    density:
      - value: 2770
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.8e-06
      - temperature_range: 293 573
        value: 1.09e-05
    dPgF: 0.0049
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 1.0