# 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/ohara_2017-11-30.agf">OHARA Zemax catalog 2017-11-30</a> (obtained from <a href="http://www.ohara-inc.co.jp/en/product/optical/list/">http://www.ohara-inc.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.pdf">OHARA glass data sheets</a>
COMMENTS: |
    Recommended 
DATA:
  - type: formula 2
    wavelength_range: 0.33 2.4
    coefficients: 0 0.953128328 0.00387638985 0.637613977 0.0185094632 1.65245647 159.442367
  - type: tabulated k
    data: |
        0.330 5.3577E-06
        0.340 2.2213E-06
        0.350 9.9342E-07
        0.360 4.6558E-07
        0.370 2.2637E-07
        0.380 1.2660E-07
        0.390 7.5393E-08
        0.400 4.8108E-08
        0.420 3.0216E-08
        0.440 2.8124E-08
        0.460 2.2030E-08
        0.480 1.9146E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 1.9118E-08
        1.400 1.0072E-07
        1.600 7.6624E-08
        1.800 1.8743E-07
        2.000 4.3563E-07
        2.200 1.4979E-06
        2.400 4.0245E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -3.24e-07 1.31e-08 -3.71e-11 4.21e-07 6.87e-10 0.207
    nd: 1.622992
    Vd: 58.165763
    glass_code: 623582
    density:
      - value: 3600
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.5e-06
      - temperature_range: 293 573
        value: 7.8e-06
    dPgF: -0.0016
    resistance:
        climatic: 2.0
        acid: 52.2
        phosphate: 3.2