# 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 1.37023101 0.00871920342 0.177665568 0.0405725552 1.30515471 112.703058
  - type: tabulated k
    data: |
        0.320 6.4317E-06
        0.330 1.9274E-06
        0.340 7.7836E-07
        0.350 3.8787E-07
        0.360 2.2334E-07
        0.370 1.4174E-07
        0.380 9.8348E-08
        0.390 6.9040E-08
        0.400 5.1341E-08
        0.420 3.6968E-08
        0.440 2.8124E-08
        0.460 2.5714E-08
        0.480 1.9146E-08
        0.500 1.1955E-08
        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 2.2304E-08
        1.600 7.6624E-08
        1.800 1.8743E-07
        2.000 4.5199E-07
        2.200 2.0402E-06
        2.400 5.2414E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.21e-06 1.49e-08 -3.78e-11 5.35e-07 6.88e-10 0.25
    nd: 1.613397
    Vd: 44.267706
    glass_code: 613443
    density:
      - value: 2930
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.5e-06
      - temperature_range: 293 573
        value: 7.8e-06
    dPgF: -0.0065
    resistance:
        climatic: 2.0
        acid: 1.0
        phosphate: 1.0