# 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: |
    Low Softening Temperature 
DATA:
  - type: formula 2
    wavelength_range: 0.3 2.4
    coefficients: 0 0.917473918 0.00527701411 0.352687665 0.0170809497 1.05579788 104.302583
  - type: tabulated k
    data: |
        0.300 6.0297E-06
        0.310 2.2604E-06
        0.320 8.7214E-07
        0.330 3.6571E-07
        0.340 1.6166E-07
        0.350 7.6235E-08
        0.360 4.0390E-08
        0.370 2.3650E-08
        0.380 1.8198E-08
        0.390 1.2439E-08
        0.400 9.5636E-09
        0.420 1.0042E-08
        0.440 1.0520E-08
        0.460 1.0998E-08
        0.480 7.6471E-09
        0.500 3.9809E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 2.9349E-07
        1.600 7.6624E-08
        1.800 1.7293E-07
        2.000 4.1928E-07
        2.200 2.4381E-06
        2.400 4.2617E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 6.37e-06 1.48e-08 -4.17e-11 4.37e-07 7.14e-10 0.147
    nd: 1.516330
    Vd: 64.065129
    glass_code: 516641
    density:
      - value: 2380
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.8e-06
      - temperature_range: 293 573
        value: 7.1e-06
    dPgF: -0.0045
    resistance:
        climatic: 3.0
        acid: 1.0
        phosphate: 1.2