# 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: 3.32566886 -0.0131396072 2 0.0340298328 -2 0.000803745646 -4 1.03681091e-05 -6 2.05840857e-06 -8 -0.000123587896 4
  - type: tabulated k
    data: |
        0.330 1.2093E-05
        0.340 7.6121E-06
        0.350 3.8611E-06
        0.360 1.8734E-06
        0.370 1.0084E-06
        0.380 5.6345E-07
        0.390 3.6167E-07
        0.400 2.3100E-07
        0.420 1.2601E-07
        0.440 8.1473E-08
        0.460 5.9043E-08
        0.480 4.2250E-08
        0.500 2.7950E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        0.900 2.8705E-08
        1.000 1.5931E-08
        1.200 9.5541E-09
        1.400 1.1146E-08
        1.600 2.5490E-08
        1.800 1.0062E-07
        2.000 3.8663E-07
        2.200 1.0833E-06
        2.400 4.2617E-06
CONDITIONS:
    temperature: 296
PROPERTIES:
    nd: 1.851170
    Vd: 40.049954
    glass_status: preferred
    density:
      - value: 5270
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.3e-06
    dPgF: -0.0072