# 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: 0.34 2.4
    coefficients: 0 1.63056133 0.00899690705 0.186994897 0.0368011993 1.30014289 122.239544
  - type: tabulated k
    data: |
        0.340 5.3196E-06
        0.350 2.1029E-06
        0.360 9.0158E-07
        0.370 4.4408E-07
        0.380 2.4230E-07
        0.390 1.4615E-07
        0.400 1.0024E-07
        0.420 6.0709E-08
        0.440 4.9366E-08
        0.460 4.0489E-08
        0.480 3.0681E-08
        0.500 1.9944E-08
        0.550 1.3150E-08
        0.600 1.9137E-08
        0.650 2.5928E-08
        0.700 1.6736E-08
        0.800 1.2745E-08
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 1.9118E-08
        1.400 4.4653E-08
        1.600 5.1032E-08
        1.800 1.2950E-07
        2.000 2.8909E-07
        2.200 8.6118E-07
        2.400 3.1039E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.01e-06 1.19e-08 -3.79e-11 5.89e-07 6.69e-10 0.214
    nd: 1.697002
    Vd: 48.516066
    glass_code: 697485
    density:
      - value: 3770
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.1e-06
      - temperature_range: 293 573
        value: 8.3e-06
    dPgF: -0.0041
    resistance:
        climatic: 3.0
        acid: 5.2
        phosphate: 1.0