# 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: 2.842085 0.01641576 2 0.05206046 -2 -0.002610463 -4 0.000446977 -6 -9.429829e-06 -8
  - type: tabulated k
    data: |
        0.370 1.3559E-05
        0.380 5.0220E-06
        0.390 2.0897E-06
        0.400 8.7356E-07
        0.420 2.3537E-07
        0.440 9.2241E-08
        0.460 4.0489E-08
        0.480 1.5310E-08
        0.500 3.9809E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 5.5732E-09
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.728250
    Vd: 28.346990
    glass_code: 728283
    glass_status: preferred
    density:
      - value: 4270
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.5e-06
    dPgF: 0.0083