# 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: 3.563784 -0.025449644 2 0.058401659 -2 0.0092310983 -4 -0.00095499727 -6 0.00011777456 -8
  - type: tabulated k
    data: |
        0.390 9.5561E-06
        0.400 3.2520E-06
        0.420 4.9245E-07
        0.440 2.0549E-07
        0.460 1.3801E-07
        0.480 1.0063E-07
        0.500 8.0384E-08
        0.550 3.9569E-08
        0.600 1.9137E-08
        0.650 1.5541E-08
        0.700 1.1152E-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 2.1518E-08
        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 3.1082E-08
        1.400 1.1197E-07
        1.500 2.1682E-07
        1.550 1.8642E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.60984e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.94595
    Vd: 17.98
    glass_code: 946180
    glass_status: standard
    density:
      - value: 3510
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.7e-06
      - temperature_range: 293 573
        value: 7.1e-06
    dPgF: 0.0386
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 1.0