# 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: 3.162451 0.04629811 2 0.09621568 -2 -0.01807107 -4 0.002856517 -6 -0.0001616506 -8
  - type: tabulated k
    data: |
        0.350 1.2826E-05
        0.360 4.9125E-06
        0.370 2.1004E-06
        0.380 1.0357E-06
        0.390 6.1590E-07
        0.400 4.0691E-07
        0.420 2.0680E-07
        0.440 1.4293E-07
        0.460 7.3953E-08
        0.480 3.8389E-08
        0.500 3.9989E-08
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 -0.0000E+00
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    n_d: 1.834000
    V_d: 37.338765
    glass_code: 834373
    glass_status: preferred
    density: 4.32 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 7.9e-06 K<sup>-1</sup>
    ΔP_gF: -0.003
