# 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 1.1626263 0.0125957437 0.325661051 -0.0032691105 1.35132486 119.214596
  - type: tabulated k
    data: |
        0.300 6.7165E-06
        0.310 3.2300E-06
        0.320 1.6167E-06
        0.330 8.2645E-07
        0.340 4.3972E-07
        0.350 2.2619E-07
        0.360 1.2891E-07
        0.370 7.4545E-08
        0.380 4.8774E-08
        0.390 3.4328E-08
        0.400 2.5567E-08
        0.420 2.3478E-08
        0.440 2.4596E-08
        0.460 1.8349E-08
        0.480 1.5310E-08
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 2.8691E-08
        1.400 1.0072E-07
        1.600 7.6624E-08
        1.800 1.5844E-07
        2.000 3.5405E-07
        2.200 1.1954E-06
        2.400 4.0245E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.03e-06 1.22e-08 -3.81e-11 4.93e-07 5.76e-10 0.16
    nd: 1.589130
    Vd: 61.152601
    glass_code: 589612
    density:
      - value: 2820
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.6e-06
      - temperature_range: 293 573
        value: 8.1e-06
    dPgF: -0.0043
    resistance:
        climatic: 3.0
        acid: 52.2
        phosphate: 3.2