# 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: 2.620359 0.002381459 2 0.03560544 -2 -0.001773085 -4 0.0003452771 -6 -1.282207e-05 -8
  - type: tabulated k
    data: |
        0.350 9.7665E-06
        0.360 3.4491E-06
        0.370 1.2684E-06
        0.380 4.9145E-07
        0.390 2.1523E-07
        0.400 8.7125E-08
        0.420 2.0114E-08
        0.440 7.0098E-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
CONDITIONS:
    temperature: 293
PROPERTIES:
    nd: 1.648311
    Vd: 33.769773
    glass_code: 648338
    glass_status: preferred
    density:
      - value: 3730
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.5e-06
    dPgF: 0.002