# 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: 0.28 2.4
    coefficients: 0 1.13962742 0.00493294862 0.805227838 0.020247996 1.29488061 93.4746507
  - type: tabulated k
    data: |
        0.280 8.7166E-06
        0.290 5.0938E-06
        0.300 3.8422E-06
        0.310 2.6613E-06
        0.320 1.8690E-06
        0.330 1.2553E-06
        0.340 8.1468E-07
        0.350 5.1897E-07
        0.360 3.3384E-07
        0.370 2.0104E-07
        0.380 1.2660E-07
        0.390 8.4947E-08
        0.400 5.7818E-08
        0.420 3.3591E-08
        0.440 2.4596E-08
        0.460 1.8349E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 2.8691E-08
        1.400 6.7046E-08
        1.600 7.6624E-08
        1.800 2.0195E-07
        2.000 5.8353E-07
        2.200 1.7476E-06
        2.400 8.2273E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.63e-06 2.04e-08 -5.33e-12 5.86e-07 7.5e-10 0.176
    nd: 1.733997
    Vd: 51.470570
    glass_code: 734515
    density:
      - value: 4040
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.5e-06
      - temperature_range: 293 573
        value: 6.8e-06
    dPgF: -0.0096
    resistance:
        climatic: 2.0
        acid: 52.0
        phosphate: 2.0