# 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: 0.365 0.9
    coefficients: 2.628582 -0.009085873 2 0.0195519 -2 0.0006698928 -4 -2.510153e-05 -6 3.047777e-06 -8
  - type: tabulated k
    data: |
        0.380 2.6532E-07
        0.390 1.7228E-07
        0.400 1.1011E-07
        0.420 6.0709E-08
        0.440 4.2271E-08
        0.460 3.3094E-08
        0.480 2.2987E-08
        0.500 1.5947E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 2.0732E-08
        0.700 1.6736E-08
        0.800 1.9127E-08
        0.900 2.1518E-08
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 25.0 °C
    coefficients_of_thermal_dispersion: 3.9903e-06 0.0 0.0 0.0 0.0 0.0
    n_d: 1.639300
    V_d: 44.878032
    glass_code: 639449
    glass_status: preferred
    density: 3.8 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 7.6e-06 K<sup>-1</sup>
    coefficient_of_thermal_expansion_2: 8.7e-06 K<sup>-1</sup>
    ΔP_gF: -0.0001
