A.illuminant.spct

A dataset containing wavelengths at a 5 nm interval (300 nm to
  830 nm) and the corresponding spectral energy irradiance normalized to 1 at
  560 nm. Spectrum approximates typical, domestic, tungsten-filament lighting
  and 'corresponds' to a black body a 2856 K. CIE standard illuminant A is
  intended to represent typical, domestic, tungsten-filament lighting.
  Original data from <url>http://files.cie.co.at/204.xls</url> downloaded on
  2014-07-25 The variables are as follows:

datasets

Definitions of classes, methods, operators and functions for use in
    'photobiology' and radiation meteorology and climatology. Calculation of
    effective (weighted) and not-weighted 'irradiances'/doses, 'fluence' rates,
    'transmittance', 'reflectance', 'absorptance', 'absorbance' and diverse
    ratios and other derived quantities from spectral data. Local 'maxima' and
    'minima'. Conversion between energy- and photon-based units. Wavelength
    interpolation. Astronomical calculations related solar angles and day
    length. Colours and vision.

A.illuminant.spct: CIE A illuminant data

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