# 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: 2.6543867 -0.0084478289 2 0.022275774 -2 0.00090008133 -4 -3.5291806e-05 -6 4.7103195e-06 -8
  - type: tabulated k
    data: |
        0.330 7.8670E-06
        0.340 3.0829E-06
        0.350 1.4228E-06
        0.360 8.2415E-07
        0.370 5.1336E-07
        0.380 3.5239E-07
        0.390 2.4867E-07
        0.400 1.6998E-07
        0.420 9.8359E-08
        0.440 6.7167E-08
        0.460 4.4192E-08
        0.480 3.0681E-08
        0.500 1.9944E-08
        0.550 1.3150E-08
        0.600 1.9137E-08
        0.650 2.0732E-08
        0.700 2.2326E-08
        0.800 2.5516E-08
        0.900 3.5900E-08
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 2.492e-06 0.0 0.0 0.0 0.0 0.0
    n_d: 1.650158
    V_d: 39.390461
    glass_code: 650394
    glass_status: preferred
    density: 3.91 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 9.2e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 1.05e-05 K<sup>-1</sup>
    ΔP_gF: 0.0015
    acid_resistance: 51.2
    phosphate_resistance: 2.0
