# 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: 0.28 2.4
    coefficients: 0 1.50276318 0.0145462356 0.430224497 -0.00332784153 1.3472606 93.3508342
  - type: tabulated k
    data: |
        0.280 7.1722E-06
        0.290 3.6016E-06
        0.300 2.8743E-06
        0.310 2.8109E-06
        0.320 1.5224E-06
        0.330 1.0128E-06
        0.340 6.7225E-07
        0.350 4.2007E-07
        0.360 2.6389E-07
        0.370 1.6345E-07
        0.380 1.0147E-07
        0.390 6.9040E-08
        0.400 5.1341E-08
        0.420 3.0216E-08
        0.440 2.1072E-08
        0.460 1.4672E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 9.5589E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
        0.800 1.2745E-08
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 3.8274E-08
        1.400 1.0072E-07
        1.600 1.1511E-07
        1.800 2.6018E-07
        2.000 7.1616E-07
        2.200 2.4381E-06
        2.400 9.7561E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.46e-06 1.15e-08 -3.23e-12 6.57e-07 8.65e-10 0.0
    nd: 1.729157
    Vd: 54.680013
    glass_code: 729547
    density:
      - value: 4180
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.9e-06
      - temperature_range: 293 573
        value: 6.9e-06
    dPgF: -0.0086
    resistance:
        climatic: 1.0
        acid: 51.2
        phosphate: 2.0