# 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: 3.563784 -0.025449644 2 0.058401659 -2 0.0092310983 -4 -0.00095499727 -6 0.00011777456 -8
  - type: tabulated k
    data: |
        0.400 8.2878E-06
        0.420 2.3774E-06
        0.440 1.0401E-06
        0.460 6.1651E-07
        0.480 4.2800E-07
        0.500 3.1881E-07
        0.550 1.5140E-07
        0.600 8.6727E-08
        0.650 6.7684E-08
        0.700 4.4743E-08
        0.750 3.5918E-08
        0.780 3.1113E-08
        0.800 2.5516E-08
        0.830 6.6082E-09
        0.850 1.3542E-08
        0.900 2.8705E-08
        0.950 5.3105E-08
        1.000 6.3918E-08
        1.050 8.3977E-08
        1.060 8.4777E-08
        1.100 8.7976E-08
        1.200 1.1528E-07
        1.300 1.4585E-07
        1.400 2.0236E-07
        1.500 2.5334E-07
        1.550 2.4919E-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
    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