# 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: 2.983846 -0.01289956 2 0.03563966 -2 0.002969076 -4 -0.000222699 -6 2.674236e-05 -8
  - type: tabulated k
    data: |
        0.380 9.0589E-06
        0.390 3.6348E-06
        0.400 1.5734E-06
        0.420 4.2725E-07
        0.440 1.7224E-07
        0.460 8.8925E-08
        0.480 4.6114E-08
        0.500 1.1955E-08
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 1.0355E-08
        0.700 5.5705E-11
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.761820
    Vd: 26.556302
    glass_code: 762266
    glass_status: preferred
    density:
      - value: 4570
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.5e-06
    dPgF: 0.0122