# 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: |
    Recommended glass type
DATA:
  - type: formula 3
    wavelength_range: 0.36501 1.01398
    coefficients: 3.1189869 -0.015820772 2 0.044425024 -2 0.0035834882 -4 -0.00023943449 -6 3.8756542e-05 -8
  - type: tabulated k
    data: |
        0.370 8.9407E-06
        0.380 2.7936E-06
        0.390 8.8044E-07
        0.400 3.7094E-07
        0.420 1.6090E-07
        0.440 1.1750E-07
        0.460 9.2677E-08
        0.480 7.3273E-08
        0.500 6.4177E-08
        0.550 3.5155E-08
        0.600 2.8734E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
        0.750 2.3921E-08
        0.780 2.4878E-08
        0.800 1.9127E-08
        0.830 6.6082E-09
        0.850 6.7675E-09
        0.900 7.1656E-09
        0.950 1.5135E-08
        1.000 1.5931E-08
        1.050 1.6728E-08
        1.060 1.6887E-08
        1.100 1.7525E-08
        1.200 1.9118E-08
        1.300 2.0711E-08
        1.400 6.7046E-08
        1.500 1.1997E-07
        1.550 1.2397E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -1.09e-05 4.1e-09 -1.04e-11 1.01e-06 1.33e-09 0.307
    nd: 1.80809
    Vd: 22.76
    glass_code: 808228
    glass_status: standard
    density:
      - value: 3320
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.6e-06
      - temperature_range: 293 573
        value: 1.18e-05
    dPgF: 0.0213
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 1.0