# 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: |
    
DATA:
  - type: formula 3
    wavelength_range: 0.3 2.4
    coefficients: 2.8219169 -0.0099182972 2 0.02439388 -2 0.00099651859 -4 -4.5521985e-05 -6 5.5512807e-06 -8
  - type: tabulated k
    data: |
        0.350 1.2826E-05
        0.360 5.2500E-06
        0.370 2.2864E-06
        0.380 1.0786E-06
        0.390 5.7828E-07
        0.400 3.1774E-07
        0.420 1.4341E-07
        0.440 9.5838E-08
        0.460 7.0220E-08
        0.480 5.3854E-08
        0.500 3.5972E-08
        0.550 1.7542E-08
        0.600 2.3933E-08
        0.650 3.1129E-08
        0.700 2.7922E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 6.002e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.701998
    Vd: 40.097173
    glass_code: 702401
    glass_status: preferred
    density:
      - value: 3970
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.4e-06
      - temperature_range: 293 573
        value: 8.4e-06
    dPgF: 0.0003
    resistance:
        acid: 4.2
        phosphate: 2.0