# 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: ""
DATA:
  - type: formula 3 
    range: 0.3 2.4
    coefficients: 2.3036685 -0.0076028355 2 0.014811205 -2 0.00024182527 -4 4.8392964e-06 -6 8.9395406e-07 -8
  - type: tabulated k
    data: |
        0.300 1.0994E-05
        0.310 3.2300E-06
        0.320 1.0198E-06
        0.330 3.9607E-07
        0.340 1.5879E-07
        0.350 7.6235E-08
        0.360 4.0390E-08
        0.370 3.2567E-08
        0.380 3.0392E-08
        0.390 1.5557E-08
        0.400 9.5636E-09
        0.420 1.3396E-08
        0.440 1.7551E-08
        0.460 1.4672E-08
        0.480 1.1476E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 3.435e-06 0.0 0.0 0.0 0.0 0.0
    n_d: 1.531717
    V_d: 48.904553
    glass_code: 532489
    glass_status: preferred
    density: 2.79 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 8.3e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 9e-06 K<sup>-1</sup>
    ΔP_gF: -0.0027
    acid_resistance: 1.0
    phosphate_resistance: 1.0
