# 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: 2.4465509 -0.0097768464 2 0.01753112 -2 0.00095250889 -4 -5.4837761e-05 -6 4.7303899e-06 -8
  - type: tabulated k
    data: |
        0.310 1.1361E-05
        0.320 2.8232E-06
        0.330 9.3665E-07
        0.340 3.7679E-07
        0.350 1.6346E-07
        0.360 8.4307E-08
        0.370 5.0485E-08
        0.380 3.9569E-08
        0.390 1.8677E-08
        0.400 1.2758E-08
        0.420 1.3396E-08
        0.440 1.4034E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.5541E-08
        0.700 1.1152E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.712e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.581439
    Vd: 40.753351
    glass_code: 581408
    glass_status: preferred
    density:
      - value: 3230
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.7e-06
      - temperature_range: 293 573
        value: 9.8e-06
    dPgF: -0.0005
    resistance:
        acid: 1.0
        phosphate: 2.0