# 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="https://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="https://refractiveindex.info/download/data/2017/hikari_2017-04-01.pdf">HIKARI glass data sheets</a>
COMMENTS: |
    
DATA:
  - type: formula 3
    wavelength_range: 0.4 0.7
    coefficients: 3.261335 -0.01832792 2 0.0415517 -2 0.00494909 -4 -0.0003884548 -6 3.837014e-05 -8
  - type: tabulated k
    data: |
        0.370 4.2020E-06
        0.380 1.6998E-06
        0.390 8.5172E-07
        0.400 4.8008E-07
        0.420 1.9261E-07
        0.440 9.5838E-08
        0.460 5.9043E-08
        0.480 3.0681E-08
        0.500 1.9944E-08
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 -0.0000E+00
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.846660
    Vd: 23.884051
    glass_code: 847239
    glass_status: preferred
    density:
      - value: 5520
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.2e-06
    dPgF: 0.0118