Good lighting has to meet a wide range of requirements: supporting the safety of road users and local residents, taking different usage situations into account and providing urban planners with options for application-tailored lighting. Static lighting cannot always meet these requirements. Adaptive systems, on the other hand, enable lighting to be flexibly adjusted to changing situations and offer a wide range of forward-looking solutions.
Changing the light colour
People and nature should be affected by artificial light no more than is absolutely necessary. This can be achieved with controlled, colour-changing light, providing the right light output and light colour for each situation. As the night becomes quieter, the “Insect Mode” switches to warmer light colours such as Amber. Its extremely low blue component can help to reduce the attraction of certain insects and minimise the scattering of light into the night sky.
For this purpose, two different light colours are combined within a single luminaire, for example neutral white at 4,000 K and a warmer light colour at 2,200 K. By adjusting the mixing ratio of the two light colours, the emitted light can be changed to a warmer, more pleasant light during the quieter evening and night-time hours. In the morning, the proportion of neutral white light is increased again, resulting in brighter, higher-contrast illumination to meet the increased safety requirements associated with rising traffic levels. The Multi-Layer principle, in which each individual LED illuminates the entire area, ensures uniform illumination at all times – regardless of the selected combination of light colours.
In combination with motion sensors, the lighting can be controlled even more precisely. During periods when the lighting is operating at a reduced output or dimmed level, the presence of people or vehicles can trigger an increase in luminous flux, followed by a subsequent reduction, helping to meet the relevant safety requirements.
Advantages
- Autonomous adjustment of the light colour and luminous flux
- Neutral white light in the early evening and morning enables good contrast vision and increases the attention of road users
- Warm, dimmed light during the late-night hours can support the sleep of local residents, is particularly insect-friendly thanks to its extremely low blue component and reduces light emissions into the night sky
- Smooth transition between colour temperatures
- Multi-layer principle guarantees uniform illumination of the entire area in the respective light colour combination
- Light colours can be combined according to customer requirements
- Illuminance and dimming profile can be programmed according to customer requirements
Colour combinations
Standard version STREET (colour temperature 4,000 – 2,200 Kelvin)
Autonomous power reduction (LA) until 8 pm 100% 4.000 K Dimming ramp 180 seconds |
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Version INDUSTRY (colour temperature 6,500 – 3,000 Kelvin)
| Traffic areas in industrial zones are illuminated with high-contrast cool white light and switched to warm white during the night-time hours. |  |
Version ENVIRONMENT (colour temperature 3,000 – 1,800 Kelvin)
| Parks, waterfront promenades and areas close to nature can, for example, be illuminated with 3,000 K from dusk onwards and switched to a warmer light colour such as Amber later in the evening and during the night. |  |
Ausführung CUSTOM
Combination of any 2 light colours according to customer requirements
Options
- Control via motion detector
- Control via RFL or LIMAS Air SYNC light management system
- Example: Cycle path in outdoor area
Basic lighting 20% in 1,800 or 2,200 Kelvin, dimming up to 100% and 3,000 or 4,000 Kelvin when motion is detected, following light (light on demand)
Changing the light distribution
Poor weather conditions such as rain, fog or snow can pose challenges for road users. In addition to impairing visibility and the ability to perceive other road users, wet roads in particular can cause significant glare.
Adapting the light distribution to changing weather conditions – for example, by using luminaires with two different optical systems – can offer a potential solution. A wide-beam light distribution for dry roads and a narrow-beam light distribution for wet roads can help to reduce glare and, in turn, improve the safety of road users.
Whether such a solution is appropriate in a particular application can only be determined as part of a detailed consultation. However, the relevant normative requirements for both dry and wet road conditions are already met by both our AB optic and our low-glare ABL optic.
