# 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: |
    Low Softening Temperature 
DATA:
  - type: formula 2
    wavelength_range: 0.3 2.4
    coefficients: 0 1.08137176 0.00594210177 0.31325766 0.0198011567 0.879192863 109.893817
  - type: tabulated k
    data: |
        0.300 1.0994E-05
        0.310 4.5208E-06
        0.320 1.8165E-06
        0.330 7.5547E-07
        0.340 3.1530E-07
        0.350 1.3116E-07
        0.360 5.7876E-08
        0.370 2.6619E-08
        0.380 1.5158E-08
        0.390 9.3246E-09
        0.400 9.5636E-09
        0.420 1.0042E-08
        0.440 1.0520E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 1.0355E-08
        0.700 5.5732E-09
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 2.2304E-08
        1.600 1.4083E-07
        1.800 5.2517E-07
        2.000 1.0017E-06
        2.200 2.0402E-06
        2.400 2.8805E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -4.53e-06 8.19e-09 -3.49e-11 4.89e-07 4.76e-10 0.221
    nd: 1.558800
    Vd: 62.558541
    glass_code: 559625
    glass_status: special
    density:
      - value: 3030
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.9e-06
      - temperature_range: 293 573
        value: 1.3e-05
    dPgF: 0.0027
    resistance:
        climatic: 3.0
        acid: 51.1
        phosphate: 4.1