# 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: 2.6928266 -0.0090141372 2 0.025058968 -2 0.0010140502 -4 -3.2164637e-05 -6 5.6431441e-06 -8
  - type: tabulated k
    data: |
        0.330 1.0273E-05
        0.340 3.6447E-06
        0.350 1.5172E-06
        0.360 7.8620E-07
        0.370 4.7852E-07
        0.380 3.1860E-07
        0.390 2.2856E-07
        0.400 1.5992E-07
        0.420 9.4918E-08
        0.440 6.7167E-08
        0.460 4.4192E-08
        0.480 3.0681E-08
        0.500 1.9944E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 4.851e-06 0.0 0.0 0.0 0.0 0.0
    n_d: 1.664459
    V_d: 35.812757
    glass_code: 664358
    glass_status: preferred
    density: 3.96 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 8.5e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 9.4e-06 K<sup>-1</sup>
    ΔP_gF: 0.0013
    acid_resistance: 3.2
    phosphate_resistance: 2.2
