# 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: 0.37 2.4
    coefficients: 0 2.1284434 0.0117309815 0.405082139 0.0508706599 1.67918461 107.091456
  - type: tabulated k
    data: |
        0.350 1.2826E-05
        0.360 5.2500E-06
        0.370 2.3511E-06
        0.380 1.1662E-06
        0.390 6.5398E-07
        0.400 4.4328E-07
        0.420 2.2106E-07
        0.440 1.3929E-07
        0.460 1.0019E-07
        0.480 7.3273E-08
        0.500 5.2065E-08
        0.550 2.6340E-08
        0.600 1.9137E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 5.5844E-08
        1.600 7.6624E-08
        1.800 2.1649E-07
        2.000 6.0004E-07
        2.200 2.0402E-06
        2.400 6.5411E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.66e-06 1.07e-08 -2.33e-11 9.1e-07 1.07e-09 0.262
    nd: 1.916499
    Vd: 31.604148
    density:
      - value: 4740
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.7e-06
    dPgF: 0.0008
    resistance:
        climatic: 1.0
        acid: 3.2
        phosphate: 1.1