# 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: 2.5600597 -0.0097457249 2 0.015970594 -2 0.00066802115 -4 -4.4172822e-05 -6 3.1024931e-06 -8
  - type: tabulated k
    data: |
        0.340 6.5150E-06
        0.350 2.8455E-06
        0.360 1.3695E-06
        0.370 6.9405E-07
        0.380 3.8656E-07
        0.390 2.2522E-07
        0.400 1.3326E-07
        0.420 7.4350E-08
        0.440 6.0036E-08
        0.460 4.7899E-08
        0.480 3.8389E-08
        0.500 2.7950E-08
        0.550 1.7542E-08
        0.600 2.3933E-08
        0.650 3.1129E-08
        0.700 2.7922E-08
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 2.882e-06 0.0 0.0 0.0 0.0 0.0
    n_d: 1.614839
    V_d: 51.172377
    glass_code: 615512
    glass_status: preferred
    density: 3.45 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 7.1e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 8.2e-06 K<sup>-1</sup>
    ΔP_gF: -0.0012
    acid_resistance: 4.2
    phosphate_resistance: 2.0
