# 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: 2.5613591 -0.01200739 2 0.020780357 -2 0.001425606 -4 -0.00011027477 -6 1.1477786e-05 -8
  - type: tabulated k
    data: |
        0.360 8.5821E-06
        0.370 3.0911E-06
        0.380 1.3027E-06
        0.390 6.1590E-07
        0.400 2.8624E-07
        0.420 1.0870E-07
        0.440 7.4313E-08
        0.460 5.9043E-08
        0.480 4.9982E-08
        0.500 3.9989E-08
        0.550 2.1939E-08
        0.600 2.8734E-08
        0.650 3.6335E-08
        0.700 2.7922E-08
        0.800 1.9127E-08
        0.900 1.4338E-08
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 4.227e-06 0.0 0.0 0.0 0.0 0.0
    n_d: 1.620955
    V_d: 35.880852
    glass_code: 621359
    glass_status: preferred
    density: 2.66 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 7.5e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 8.9e-06 K<sup>-1</sup>
    ΔP_gF: 0.0058
    acid_resistance: 1.0
    phosphate_resistance: 1.0
