# 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: 3.2606321 -0.017780398 2 0.040902938 -2 0.0056076934 -4 -0.00056434039 -6 5.4763391e-05 -8
  - type: tabulated k
    data: |
        0.370 7.1228E-06
        0.380 2.8242E-06
        0.390 1.3227E-06
        0.400 7.6649E-07
        0.420 3.7076E-07
        0.440 2.2784E-07
        0.460 1.7238E-07
        0.480 1.2423E-07
        0.500 9.2583E-08
        0.550 4.3988E-08
        0.600 4.3166E-08
        0.650 6.2446E-08
        0.700 4.4743E-08
        0.750 2.9916E-08
        0.780 1.8649E-08
        0.800 1.9127E-08
        0.830 1.9845E-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 7.1835E-08
        1.550 8.6645E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -4.62e-06 1.29e-08 -2.11e-11 1.04e-06 1.27e-09 0.296
    nd: 1.84666
    Vd: 23.78
    glass_code: 847238
    density:
      - value: 3500
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.7e-06
      - temperature_range: 293 573
        value: 1.07e-05
    dPgF: 0.0137
    resistance:
        climatic: 2.0
        stain: 1.0
        acid: 1.0