# 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: 2.971993 -0.01524352 2 0.02020612 -2 0.0008752522 -4 -7.671807e-05 -6 4.848072e-06 -8
  - type: tabulated k
    data: |
        0.290 6.9134E-06
        0.300 4.2302E-06
        0.310 2.8109E-06
        0.320 1.9226E-06
        0.330 1.2981E-06
        0.340 8.8881E-07
        0.350 5.5273E-07
        0.360 3.6622E-07
        0.370 2.2001E-07
        0.380 1.2975E-07
        0.390 7.5393E-08
        0.400 5.1341E-08
        0.420 2.3478E-08
        0.440 1.4034E-08
        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
SPECS:
    n_absolute: false
    wavelength_vacuum: false
    temperature: 20.0 °C
    nd: 1.741000
    Vd: 52.672067
    glass_code: 741527
    glass_status: preferred
    density: 4.15 g/cm<sup>3</sup>
    thermal_expansion:
      - temperature_range: -30 70 °C
        coefficient: 7e-06 K<sup>-1</sup>
    dPgF: -0.01
