# 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: 2.4269332 -0.0089789895 2 0.017578385 -2 0.00079125417 -4 -4.3016897e-05 -6 4.2474552e-06 -8
  - type: tabulated k
    data: |
        0.310 8.6503E-06
        0.320 2.5318E-06
        0.330 8.2645E-07
        0.340 3.1530E-07
        0.350 1.4286E-07
        0.360 6.9593E-08
        0.370 4.7491E-08
        0.380 4.2634E-08
        0.390 1.8677E-08
        0.400 1.2758E-08
        0.420 1.3396E-08
        0.440 1.4034E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 1.5947E-08
        0.550 8.7623E-09
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 7.1656E-09
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 4.819e-06 0.0 0.0 0.0 0.0 0.0
    n_d: 1.575006
    V_d: 41.491052
    glass_code: 575415
    glass_status: preferred
    density: 3.2 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 7.6e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 9e-06 K<sup>-1</sup>
    ΔP_gF: -0.0015
    acid_resistance: 1.0
    phosphate_resistance: 1.0
