# 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: 0.32 2.4
    coefficients: 0 0.882514764 0.00464504582 0.389271907 0.0200551397 1.10693448 136.234339
  - type: tabulated k
    data: |
        0.320 4.8310E-06
        0.330 1.6672E-06
        0.340 6.0374E-07
        0.350 2.2015E-07
        0.360 9.3172E-08
        0.370 4.7491E-08
        0.380 3.0392E-08
        0.390 1.5557E-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 7.9657E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 2.8691E-08
        1.400 8.9485E-08
        1.600 1.1511E-07
        1.800 4.6586E-07
        2.000 1.1550E-06
        2.200 2.6405E-06
        2.400 4.0245E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -2.94e-06 1.06e-08 -3.57e-11 4.22e-07 5.7e-10 0.249
    nd: 1.518229
    Vd: 58.902057
    glass_code: 518590
    density:
      - value: 2480
    thermal_expansion:
      - temperature_range: 243 343
        value: 9e-06
      - temperature_range: 293 573
        value: 1.1e-05
    dPgF: -0.0005
    resistance:
        climatic: 1.0
        acid: 1.0
        phosphate: 1.0