# 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: 2.92263 -0.01150018 2 0.02875835 -2 0.004472855 -4 -0.0004973006 -6 4.089372e-05 -8
  - type: tabulated k
    data: |
        0.380 7.2815E-06
        0.390 2.7671E-06
        0.400 1.1811E-06
        0.420 2.5335E-07
        0.440 7.4313E-08
        0.460 2.5714E-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 5.5732E-09
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.740771
    Vd: 27.644962
    glass_code: 741276
    glass_status: preferred
    density:
      - value: 4370
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.1e-06
    dPgF: 0.0093