# 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/nikon_2017-11.agf\">NIKON Zemax catalog 2017-11</a> (obtained from <a href=\"http://www.nikon.com/products/glass/lineup/materials/optical/\">http://www.nikon.com</a>)<br>See also <a href=\"http://refractiveindex.info/download/data/2017/hikari_2017-04-01.pdf\">HIKARI glass data sheets</a>"
COMMENTS: ""
DATA:
  - type: formula 3 
    range: 0.4 0.7
    coefficients: 2.6768086 -0.0102173269 2 0.0177389501 -2 2.82247162e-05 -4 4.32740016e-05 -6 -2.15847266e-06 -8
  - type: tabulated k
    data: |
        0.400 -0.0000E+00
        0.700 -0.0000E+00
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 23.0 °C
    n_d: 1.651000
    V_d: 56.171366
    glass_status: preferred
    density: 3.26 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 8.1e-06 K<sup>-1</sup>
    ΔP_gF: -0.0012
