# 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: 2.577488 -0.01546625 2 0.01135863 -2 0.001651928 -4 -0.0001733264 -6 9.058966e-06 -8
  - type: tabulated k
    data: |
        0.320 6.4317E-06
        0.330 2.4062E-06
        0.340 1.0435E-06
        0.350 4.8561E-07
        0.360 2.6075E-07
        0.370 1.3865E-07
        0.380 7.9663E-08
        0.390 5.0058E-08
        0.400 2.5567E-08
        0.420 1.6753E-08
        0.440 1.0520E-08
        0.460 7.3285E-09
        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 5.5732E-09
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.617200
    Vd: 53.959056
    glass_code: 617540
    glass_status: preferred
    density:
      - value: 3600
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.2e-06
    dPgF: -0.002