# 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: 3.0534415 -0.01275181 2 0.040609369 -2 0.0022706109 -4 -7.8086606e-05 -6 1.9874026e-05 -8
  - type: tabulated k
    data: |
        0.370 5.9622E-06
        0.380 2.3879E-06
        0.390 1.1651E-06
        0.400 6.7075E-07
        0.420 3.0787E-07
        0.440 1.9437E-07
        0.460 1.3421E-07
        0.480 9.6707E-08
        0.500 6.8222E-08
        0.550 3.0745E-08
        0.600 3.8351E-08
        0.650 5.1986E-08
        0.700 5.0361E-08
        0.750 2.9916E-08
        0.780 1.8649E-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 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 7.4230E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -1.29676e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.78472
    Vd: 25.72
    glass_code: 785257
    density:
      - value: 3220
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.1e-06
      - temperature_range: 293 573
        value: 1.08e-05
    dPgF: 0.0138
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 1.0