# 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: |
    Low	Tg	glass
DATA:
  - type: formula 3
    wavelength_range: 0.4 0.7
    coefficients: 2.10062741 -0.0047428655 2 0.00658636025 -2 0.00010373696 -4 -5.35155073e-06 -6 2.98151037e-07 -8
  - type: tabulated k
    data: |
        0.280 1.0261E-05
        0.290 8.0922E-06
        0.300 5.7485E-06
        0.310 3.7352E-06
        0.320 2.2091E-06
        0.330 1.2981E-06
        0.340 7.4253E-07
        0.350 4.2007E-07
        0.360 2.3265E-07
        0.370 1.4174E-07
        0.380 7.9663E-08
        0.390 5.3213E-08
        0.400 4.1652E-08
        0.420 3.3591E-08
        0.440 3.5190E-08
        0.460 2.9402E-08
        0.480 2.6832E-08
        0.500 2.3945E-08
        0.550 2.6340E-08
        0.600 3.3540E-08
        0.650 4.6764E-08
        0.700 5.5985E-08
        0.800 6.3982E-08
        0.900 7.1980E-08
        1.000 5.5900E-08
        1.200 3.8274E-08
        1.400 4.4653E-08
        1.600 6.3822E-08
        1.800 8.6203E-08
        2.000 7.9777E-08
        2.200 8.7755E-08
        2.400 1.1494E-07
CONDITIONS:
    temperature: 296
PROPERTIES:
    nd: 1.455620
    Vd: 91.248565
    glass_status: preferred
    density:
      - value: 3680
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.6e-05
    dPgF: 0.0437