# 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: 2.661342 -0.01187903 2 0.02328061 -2 0.001777729 -4 -0.0001298549 -6 1.138748e-05 -8
  - type: tabulated k
    data: |
        0.340 4.6396E-06
        0.350 1.6149E-06
        0.360 7.1179E-07
        0.370 3.7639E-07
        0.380 2.2596E-07
        0.390 1.4290E-07
        0.400 9.3675E-08
        0.420 4.3734E-08
        0.440 2.4596E-08
        0.460 1.0998E-08
        0.480 3.8216E-09
        0.500 3.9809E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 5.5705E-11
SPECS:
    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    n_d: 1.654460
    V_d: 33.855439
    glass_code: 654339
    glass_status: preferred
    density: 3.93 g/cm<sup>3</sup>
    coefficient_of_thermal_expansion_1: 8.8e-06 K<sup>-1</sup>
    ΔP_gF: 0.0001
