# 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: 2.65253732 -0.0207076891 2 0.00823565189 -2 0.00259890034 -4 -0.00030272324 -6 1.591967e-05 -8
  - type: tabulated k
    data: |
        0.400 -0.0000E+00
        0.700 -0.0000E+00
CONDITIONS:
    temperature: 296
PROPERTIES:
    nd: 1.638540
    Vd: 55.479598
    glass_status: preferred
    density:
      - value: 3670
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.1e-06
    dPgF: -0.0021