# 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 2
    wavelength_range: 0.3 2.4
    coefficients: 0 1.44845677 0.0092817361 0.22044806 0.0433001987 0.99476362 77.6475264
  - type: tabulated k
    data: |
        0.330 6.0467E-06
        0.340 3.1688E-06
        0.350 1.7683E-06
        0.360 1.0218E-06
        0.370 6.2044E-07
        0.380 3.5239E-07
        0.390 2.1190E-07
        0.400 1.3658E-07
        0.420 6.0709E-08
        0.440 3.5190E-08
        0.460 2.2030E-08
        0.480 1.5310E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
        0.800 6.3694E-09
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 9.5541E-09
        1.400 3.6234E-07
        1.600 2.1831E-07
        1.800 4.3630E-07
        2.000 1.3098E-06
        2.200 5.5097E-06
        2.400 1.4420E-05
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 9.679e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.654115
    Vd: 39.687638
    glass_code: 654397
    glass_status: preferred
    density:
      - value: 3490
    thermal_expansion:
      - temperature_range: 243 343
        value: 4.6e-06
      - temperature_range: 293 573
        value: 5.7e-06
    dPgF: -0.0065
    resistance:
        acid: 52.2
        phosphate: 4.2