# 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: 2.98384614 -0.0128995609 2 0.035639664 -2 0.00296907641 -4 -0.00022269905 -6 2.67423649e-05 -8
  - type: tabulated k
    data: |
        0.370 7.4367E-06
        0.380 2.6961E-06
        0.390 1.2896E-06
        0.400 7.1029E-07
        0.420 3.2625E-07
        0.440 2.0549E-07
        0.460 1.5325E-07
        0.480 1.1241E-07
        0.500 7.2272E-08
        0.550 4.3790E-09
        0.600 1.9137E-08
        0.650 4.6764E-08
        0.700 5.5732E-09
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 3.3473E-08
        1.600 8.9440E-08
        1.800 3.1864E-07
        2.000 4.8477E-07
        2.200 1.3460E-06
        2.400 2.2256E-06
CONDITIONS:
    temperature: 296
PROPERTIES:
    nd: 1.761820
    Vd: 26.556301
    glass_code: 762266
    glass_status: preferred
    density:
      - value: 3160
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.4e-06
    dPgF: 0.0122