# 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: 2.6768086 -0.0102173269 2 0.0177389501 -2 2.82247162e-05 -4 4.32740016e-05 -6 -2.15847266e-06 -8
  - type: tabulated k
    data: |
        0.400 -0.0000E+00
        0.700 -0.0000E+00
CONDITIONS:
    temperature: 296
PROPERTIES:
    nd: 1.651000
    Vd: 56.171366
    glass_status: preferred
    density:
      - value: 3260
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.1e-06
    dPgF: -0.0012