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Light and people	Light for working	Light to enjoy	Design fundamentals
ELI and LENI	Directives and standards	Research


Intellectually and emotionally satisfying light.
People who work in offices have high emotional demands placed on them. Factors such as creativity, the ability to communicate and to take decisions are becoming more and more important. People can only handle their allotted workload if lighting meets all the quality criteria for their particular visual task. If people feel good, work seems much easier. Good light motivates and picks up on the diurnal rhythm of our body clock by, for example, illuminating walls with stimulating bright light colours at the appropriate time of day. High levels of daylight enhance people's sense of wellbeing and reduce - in dynamic combination with artificial light - energy consumption.



Concrete measures: fluorescent lamps with colour rendition index in excess of 80 time-controlled accent lighting of walls improves people's sense of well-being in the workplace direct/indirect luminaires for pleasantly bright ceilings Task Area concepts focus light on to the visual task area daylight-based lighting control

Offices and Education



	ELI - LENI Top picture: Münchner Rückversicherungsgesellschaft (reinsurance company) at Münchner Tor (Germany) relies on fully automatic lighting and blinds control with facilities for adjustment by individual users. The quality of the lighting is confirmed by above-average acceptance by employees. The energy figures prove the efficiency of the lighting: the building's primary energy requirement of 237 kWh/m²/year is significantly below average. ELI: Ergonomic Lighting Indicator LENI: Lighting Energy Numeric Indicator



	ELI - LENI At the vocational college in Ravensburg (Germany), lighting scenes are adapted to suit the appropriate form of learning at the push of a button. Lighting, blinds and room control are precisely matched to the college timetable. In this way, intelligent technology ensures management that is gentle on resources.



	ELI - LENI Frankfurt am Main, Germany: Energy consumed by lighting has been reduced on average to 5.95 kWh per square metre a year in the offices of Kreditanstalt für Wiederaufbau. This is equivalent to less than 4 % of the building's primary energy requirement. This goal was achieved by ceiling-mounted light sails with built-in LIGHT FIELDS.



	ELI - LENI Glare-free LIGHT FIELDS are used in the training and computer rooms of the school complex in Bünzmatt, Switzerland. Micro-pyramidal optics and a luminaire operating efficiency in excess of 86 % pave the way for meeting Swiss "MINERGIE" requirements of 8.2 kWh/m³ a year.



	ELI - LENI The new "T-Center" on the south east expressway in Vienna (Austria) acts as a corporate image showcase 24 hours a day. Inside the building, CLARIS direct/indirect luminaires provide varied, pleasant lighting scenes for 2,500 employees. LUXMATE Professional ensures efficient use of energy with a mix of daylight-based and time-based control.



	ELI - LENI Converting the "GIL Ensemble", which was built in 1934, into the Headquarters of the European Academy (EURAC) in Bolzano (Italy) called for great sensitivity and talent for integration. The need for a balanced lighting solution was met by a mix of well-engineered luminaires: MIREL Bivergenz Plus louvre luminaires, SPHEROS pendant luminaires and PANOS downlights with compact fluorescent lamps.

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