New WE-EF LED lens ensures pedestrian crossings are clearly visible

WE-EF offers different types of LED lenses for its street and area lighting luminaires that meet the demands of efficient lighting for streets, pathways and public spaces.

A new lens is now available specifically for lighting pedestrian crossings in conformity with the relevant standards. The [P45] lens can be integrated as standard in existing WE-EF product series, which means that entire lighting systems can now be installed with a uniform luminaire design. The first conversion project in Bielefeld city of North Rhine-Westphalia, Germany has demonstrated the potential for efficient lighting of street and pedestrian crossings using a singular design.

Part of a logically structured system

As with all lenses from WE-EF, in the development of the P45 the focus was on the system concept. For example, the [P45] lens can be fitted in WE-EF’s PFL540, PFL240, RFL540-SE, VFL540 and VFL540-SE product families, and configured in accordance with the respective sizes and power ratings of the luminaires. This means that lighting designers can plan systems with a uniform luminaire design – from the different classes of general street lighting to the lighting of public spaces and pedestrian crossings.

Lighting precision, planning flexibility

Ever since LED technology was first used in street and area lighting, WE-EF has attached great importance to lenses that emit light efficiently and distribute it precisely. By investing in the in-house development of lenses, the company has built up extensive expertise in this area. The [P45] lens for pedestrian crossings was also developed by WE-EF. The CAD-optimised lens, made of PMMA, is precisely tailored to the special requirements. There are two variants that enable a pedestrian crossing, including waiting areas, to be illuminated from every direction in accordance with the relevant directives and standards.

When fitted at the typical mounting height of four to six metres, the lenses ensure that the light has the necessary illuminance and uniformity, and that there is no glare. The distribution tapers softly at the edges of the assessment field. This creates a balanced transition to the next nearest luminaire of the normal street lighting and prevents dangerous dark areas in front of or behind the pedestrian crossing. At the same time the soft edges of the distribution allow certain tolerances in the location of the luminaires; this leeway is particularly welcome when existing poles are used.

The first project demonstrates the advantages

The city of Bielefeld, Germany has already switched almost 50 per cent of its luminaires used for public street lighting to LEDs. Almost 15,000 luminaires with various conventional lamps have been replaced with energy-efficient LED luminaires from WE-EF. Until now, lighting for pedestrian crossings was not included in this measure. However, thanks to the [P45] lens, LED luminaires can now be installed in the city. The first luminaires to be switched to LEDs are at the Elbeallee pedestrian crossing show the potential for better visual conditions together with lower power consumption and lower maintenance costs.

www.weef.de

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