# 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: 0.3 2.4
    coefficients: 0 1.243442 0.0116396708 0.166301104 -0.00890464938 1.10586114 114.11122
  - type: tabulated k
    data: |
        0.300 7.1518E-06
        0.310 3.4199E-06
        0.320 1.7147E-06
        0.330 8.6267E-07
        0.340 4.3972E-07
        0.350 2.1714E-07
        0.360 1.1695E-07
        0.370 6.5499E-08
        0.380 4.5703E-08
        0.390 3.1191E-08
        0.400 2.2360E-08
        0.420 2.0114E-08
        0.440 2.1072E-08
        0.460 1.8349E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 9.5589E-09
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 2.8691E-08
        1.400 1.4578E-07
        1.600 8.9440E-08
        1.800 2.3104E-07
        2.000 4.6837E-07
        2.200 1.6896E-06
        2.400 3.5586E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.27e-06 1.2e-08 -4.09e-11 3.6e-07 6.17e-10 0.254
    nd: 1.563839
    Vd: 60.666575
    glass_code: 564607
    density:
      - value: 2780
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.5e-06
      - temperature_range: 293 573
        value: 9.1e-06
    dPgF: -0.0031
    resistance:
        climatic: 2.0
        acid: 51.2
        phosphate: 3.0