# 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: 2.93385862 -0.0150347642 2 0.0198579837 -2 0.000500310675 -4 -2.05752531e-05 -6 1.37499776e-06 -8
  - type: tabulated k
    data: |
        0.280 7.1722E-06
        0.290 4.2291E-06
        0.300 2.9552E-06
        0.310 2.6613E-06
        0.320 1.4765E-06
        0.330 9.7443E-07
        0.340 6.0374E-07
        0.350 3.5604E-07
        0.360 2.0175E-07
        0.370 1.0795E-07
        0.380 4.2634E-08
        0.390 1.2439E-08
        0.400 3.1847E-09
        0.420 3.3439E-09
        0.440 3.5032E-09
        0.460 3.6624E-09
        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
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 1.1146E-08
        1.600 1.2739E-08
        1.800 2.8677E-08
        2.000 5.1762E-07
        2.200 2.2380E-06
        2.400 9.4404E-06
CONDITIONS:
    temperature: 296
PROPERTIES:
    nd: 1.729157
    Vd: 54.658831
    glass_code: 729547
    glass_status: preferred
    density:
      - value: 4160
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.9e-06
    dPgF: -0.0084