# 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: 2.579457 -0.0094225577 2 0.021195926 -2 0.0008094349 -4 -2.4922189e-05 -6 3.9861235e-06 -8
  - type: tabulated k
    data: |
        0.330 4.5032E-06
        0.340 1.7693E-06
        0.350 8.7654E-07
        0.360 4.9949E-07
        0.370 3.0695E-07
        0.380 2.1295E-07
        0.390 1.3965E-07
        0.400 9.3675E-08
        0.420 5.3908E-08
        0.440 4.5817E-08
        0.460 3.3094E-08
        0.480 2.2987E-08
        0.500 1.9944E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 2.0732E-08
        0.700 1.6736E-08
        0.800 1.2745E-08
        0.900 1.4338E-08
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 4.781e-06 0.0 0.0 0.0 0.0 0.0
    n_d: 1.626059
    V_d: 39.215631
    glass_code: 626392
    glass_status: preferred
    density: 3.63 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 8.2e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 9.2e-06 K<sup>-1</sup>
    ΔP_gF: 0.0001
    acid_resistance: 2.2
    phosphate_resistance: 1.2
