# 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=\"http://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=\"http://refractiveindex.info/download/data/2017/ohara_2017-11-30.pdf\">OHARA glass data sheets</a>"
COMMENTS: "Leaded"
DATA:
  - type: formula 3 
    range: 0.3 2.4
    coefficients: 2.9830277 -0.010435952 2 0.036346467 -2 0.0026194115 -4 -0.00017513176 -6 2.1325099e-05 -8
  - type: tabulated k
    data: |
        0.360 1.3193E-05
        0.370 4.8898E-06
        0.380 2.1571E-06
        0.390 1.0629E-06
        0.400 5.9311E-07
        0.420 2.4255E-07
        0.440 1.2838E-07
        0.460 7.7690E-08
        0.480 4.9982E-08
        0.500 3.1959E-08
        0.550 1.3150E-08
        0.600 1.9137E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
        0.800 6.3694E-09
        0.900 7.1656E-09
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 1.331e-05 0.0 0.0 0.0 0.0 0.0
    n_d: 1.761797
    V_d: 27.107724
    glass_code: 762271
    glass_status: preferred
    density: 4.79 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 7.5e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 8.5e-06 K<sup>-1</sup>
    ΔP_gF: 0.0085
    acid_resistance: 3.2
    phosphate_resistance: 2.2
