SUN.LIGHT.QUALITY. ONE STEP AHEAD.

The chip in an LED (light-emitting diode) converts electric energy via electroluminescence into light. The complex and customized interplay between semi-conductor crystal and the fluorescent conversion layer above it defines the LED module as a "package". The customized composition of this package also plays a part in deciding on the quality, colour rendition, colour saturation and depth of field of the lighting. BRILLIANT COLOUR, EFFICIENT WHITE and BRILLIANT FOOD: our LED modules in unprecedented specification are the result of intensive research and development.

The colour rendering index CRI comprises, according to DIN 6169, only eight specified test colours consisting of pastel shades between antique rose and lilac. This so-called Ra was later supplemented in order, for example, to be able to better assess a saturated red (R 9): The extended CRI (Re) therefore includes six additional colours: red, yellow, green, blue, plus pink (flesh colour) as well as leaf green. The ideal value for the most natural colour rendering is in the case of the CRI generally 100. Already on the basis of the two indices Ra and Re it becomes clear: equal or similar CRI values do not automatically mean that the colour rendering of a light source is equal or similar. It is only the graph that makes the differences clear in detail.

The Fidelity Index (Rf) provides information on the colour accuracy of the light spectrum that is emitted and rendered by a light source. This colour fidelity is determined with 99 test colours (CES colours) with a possible maximum value of 100. As a rule, the fidelity value is lower than the classic CRI since a calculated mean value is formed from 99 colours and not only from 8 or 14.

The Gamut Index (Rg) describes the colour saturation of an LED. The colour saturation of a natural light source such as the sun serves as a reference for the assessment of the artificial light source. An LED can, in this comparison, show a saturation of more than 100. The LED module BRILLIANT COLOUR shows in all colour areas not only homogeneous colour saturation, but even achieves a higher saturation in all colours. Especially in the challenging red shades, BRILLIANT COLOUR achieves best results: it is this extra colour performance of the LED module that generates the radiant brilliance on the product that retail needs and demanded.

Representation of the colour saturation of an LED in comparison to the natural reference light source (white line). The Gamut Index (Rg) alone cannot provide a statement about the colour saturation. Only in combination with the graphic representation is an objective assessment possible here.

That is new: in the case of an LED luminaire the lamp does not project into the reflector like a rod, but is located flat on a circuit board at the light emission aperture of the reflector. The light shines only in one direction upwards instead of all around. We are the first to take that into account. The classic LED reflectors have remained the same in the final finish and are structured everywhere in the same way, roughly like the eye of an insect. However, like that, LED light cannot be guided in an optimum way.  Our approach is innovative: we have looked at the LED from the viewpoint of the reflector with the question: how can I guide the light emitted in a perfect way?

We have developed our reflector precisely for what is special about the LED. In doing so, we were able to make use of the rule that the light can always be well guided if the light source itself is almost point-shaped. And that is exactly how our facets are made: close to the LED they have a ring structure, further away they show a grooved structure. In the middle of the reflector there is a progression from a ring to a groove structure: in that way we achieve a better and, above all, controlled guidance of the light onto goods, products and surfaces.

Creating a clear core light with only little scattered light – that is always our aim. The art of the generation of quality light consists in controlling and combining these two different kinds of light in keeping with requirements. And that is exactly what we have succeeded in with our new reflectors. With this innovation we are moving ahead in the market. And we provide you with a significant plus point in lighting.

Two optimized LED modules and unique reflectors enrich our standard range. Thanks to the modular structure of our luminaires we hence achieve a maximum level of design freedom. That is lighting quality according to dimensions and requirements.

The driver is also a decisive module for the best lighting quality. An LED is nowadays very sensitive; it directly also absorbs power fluctuations. If the driver supplies pure current without alternating current components, the LED power is not subject to any fluctuations either, and it is flicker-free. The level of the ripple current and its frequency are decisive as regards how strong the flickering of the LED, that is harmful to health in the long term, is felt to be.

Large Projects in Retail often arise in the network of specialists. Our external partnerships in lighting design and in shopfitting have been growing for years and prove successful every day. Short distances, economical coordination and creative solutions in the planning team implement excellent store concepts.