Gossen Foto- und Lichtmesstechnik GmbH 15
3.3.1
Spectrum
This measured value window displays the spectral power distribution of a light source and also provides information
concerning color temperature and illuminance. The window as well as the colored background for the spectral power
distribution can be shown or hidden with the help of the corresponding function in the presentation menu (see section 4).
CCT
Correlated color temperature in Kelvin (K)
E vis
Illuminance (lx/fc)
Graphic Standardized spectral power distribution (mW/m²/nm) over the entire measured waveband
3.3.2
Report
This measured value window lists all measured values calculated by the device from the measured spectral power
distribution. The window as well as the individual values can be shown or hidden with the help of the corresponding
function in the presentation menu (see section 4).
E vis
Illuminance (lx/fc)
CCT
Correlated color temperature in Kelvin (K)
Duv
Delta uv
– color temperature difference relative to the Planckian locus
CRI
Color rendering index Ra
ʎ peak
Wavelength (nm) of the maximum spectral radiant intensity (ʎp) – peak intensity
ʎ dominant
Dominant wavelength
Purity
Color purity
Flicker index
Flicker index
Flicker [%]
Flicker as a percentage
Flicker [Hz]
Flicker frequency