# 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=\"http://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=\"http://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: 2.839803 -0.004469128 2 0.03464028 -2 0.001334322 -4 -5.451762e-05 -6 1.214724e-05 -8
  - type: tabulated k
    data: |
        0.340 1.2460E-05
        0.350 4.7761E-06
        0.360 2.1027E-06
        0.370 1.1792E-06
        0.380 7.1281E-07
        0.390 4.6808E-07
        0.400 3.1422E-07
        0.420 1.4341E-07
        0.440 6.3599E-08
        0.460 2.2030E-08
        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
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    nd: 1.717360
    Vd: 29.486634
    glass_code: 717295
    glass_status: preferred
    density: 4.47 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 9e-06 K<sup>-1</sup>
    dPgF: 0.0032
