# 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: 2.570478 -0.01196865 2 0.01497124 -2 0.001128455 -4 -0.0001104138 -6 7.39815e-06 -8
  - type: tabulated k
    data: |
        0.340 1.0585E-05
        0.350 3.8611E-06
        0.360 1.6611E-06
        0.370 7.6955E-07
        0.380 3.8656E-07
        0.390 2.2189E-07
        0.400 1.2994E-07
        0.420 6.0709E-08
        0.440 3.8729E-08
        0.460 2.5714E-08
        0.480 1.1476E-08
        0.500 3.9809E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 5.1751E-09
        0.700 -0.0000E+00
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.617720
    Vd: 49.779141
    glass_code: 618498
    glass_status: preferred
    density:
      - value: 3230
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.7e-06
    dPgF: -0.0008