# 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: 2.533703 -0.0090417017 2 0.016851835 -2 0.00051005408 -4 -1.7651257e-05 -6 1.8665437e-06 -8
  - type: tabulated k
    data: |
        0.320 8.1968E-06
        0.330 3.2507E-06
        0.340 1.4276E-06
        0.350 6.9202E-07
        0.360 3.6622E-07
        0.370 1.9160E-07
        0.380 1.2344E-07
        0.390 8.1759E-08
        0.400 5.1341E-08
        0.420 4.0350E-08
        0.440 4.2271E-08
        0.460 3.3094E-08
        0.480 2.6832E-08
        0.500 1.9944E-08
        0.550 1.3150E-08
        0.600 2.3933E-08
        0.650 3.1129E-08
        0.700 2.2326E-08
        0.800 1.9127E-08
        0.900 2.1518E-08
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 3.33e-06 0.0 0.0 0.0 0.0 0.0
    n_d: 1.607289
    V_d: 49.188575
    glass_code: 607492
    glass_status: preferred
    density: 3.39 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 8.1e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 9.1e-06 K<sup>-1</sup>
    ΔP_gF: -0.001
    acid_resistance: 52.2
    phosphate_resistance: 2.2
