# 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: 3.11728297 -0.0142927167 2 0.0450361555 -2 0.00356204671 -4 -0.000265603903 -6 4.19369865e-05 -8 2.98920058e-05 4
  - type: tabulated k
    data: |
        0.380 5.7368E-06
        0.390 2.3432E-06
        0.400 1.0902E-06
        0.420 3.8949E-07
        0.440 2.2411E-07
        0.460 1.6089E-07
        0.480 1.2029E-07
        0.500 9.2583E-08
        0.550 5.2839E-08
        0.600 3.8351E-08
        0.650 5.7213E-08
        0.700 6.7249E-08
        0.800 1.0916E-07
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 9.5541E-09
        1.400 2.2304E-08
        1.600 1.1511E-07
        1.800 3.4797E-07
        2.000 5.6702E-07
        2.200 1.1579E-06
        2.400 1.9487E-06
CONDITIONS:
    temperature: 296
PROPERTIES:
    nd: 1.808090
    Vd: 22.787261
    glass_status: preferred
    density:
      - value: 3320
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.09e-05
    dPgF: 0.0236