# 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: 0.29 2.4
    coefficients: 0 1.30663291 0.00611862448 0.571377253 0.021272147 1.24303605 90.6285686
  - type: tabulated k
    data: |
        0.290 8.0922E-06
        0.300 6.3485E-06
        0.310 4.6800E-06
        0.320 3.2416E-06
        0.330 2.1559E-06
        0.340 1.3821E-06
        0.350 8.3864E-07
        0.360 4.9949E-07
        0.370 2.9391E-07
        0.380 1.7427E-07
        0.390 1.1057E-07
        0.400 7.4066E-08
        0.420 4.0350E-08
        0.440 3.1655E-08
        0.460 2.2030E-08
        0.480 1.5310E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 1.9137E-08
        0.650 1.5541E-08
        0.700 1.6736E-08
        0.800 1.2745E-08
        0.900 2.1518E-08
        1.000 2.3909E-08
        1.200 2.8691E-08
        1.400 1.0072E-07
        1.600 1.1511E-07
        1.800 2.7477E-07
        2.000 7.3281E-07
        2.200 2.4381E-06
        2.400 9.1298E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.24e-06 1.31e-08 -3.71e-11 3.81e-07 4.99e-10 0.252
    nd: 1.712995
    Vd: 53.867058
    glass_code: 713539
    density:
      - value: 3790
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.1e-06
      - temperature_range: 293 573
        value: 7.4e-06
    dPgF: -0.0084
    resistance:
        climatic: 3.0
        acid: 52.0
        phosphate: 3.0