But you have to do something effective against anxiety and demand stronger health protection 4. Light spectrum of the light energy saving bulb can be considered an electromagnetic wave and has a range of different wavelengths for colors of purple on green, yellow to red. The human visible spectrum, the wavelengths of approximately 300nm are (blue) until approx. 600nm (red). Including are the for the people invisible ultraviolet and infrared portion.
The bulb produces a uniform spectrum of light through the entire wavelength, and by the high red – and yellow share a warm and pleasant light 5. On the other hand, the light spectrum of the energy-saving lamp has a much higher blue and green, and thus a rather unnatural-looking light. Also striking on the spectral graph that the spectrum is ticked off and not continuous and flowing, as is the case when the bulb (fig. 2). This deficiency is cooking many probably not consciously. Perhaps, it is that things just Gray, and unnaturally acting such as red wine or beef under this light.
So for example the Philips plant manager Thomas Mertes in mirror TV confessed to”a:”the energy saving lamp I would not recommend, where colours should of course be represented. For example, over a dining table. The food is then not really appetizing. And the opposite, the guest who sits, there seems a bit greyish. And Yes, you get the impression immediately, it would have not tasted it. “The quality of a color reproduction is described by the color rendering index RA. A value of 100 is optimal, how this will be achieved by incandescent and halogen lamps. Fluorescent lamps with a color rendition under 80 are considered deprecated and should no longer be used. Today’s standard values reached by three gang lamps are about 80. The full spectrum of five gang lamps reach values above 90.