The importance of lighting
- Light has been known for a long time to enable sight, safety and orientation.
- Light can do more than enabling vision. Light has the power to energize, to relax, to increase alertness and cognitive performance, to impact mood and to improve the sleep-wake cycle of people.
- Light can do much more than saving energy.
- The true value of light lies in the combination of excellent visual, biological and emotional benefits.
We need light and darkness
There is a period of the day when we are active and a period when we are sleeping Light is the most important timer for our internal clock
Provide dynamic and tunable light (dimming and boosting light intensity and tuning spectrum) enabling Human Centric Lighting.
Lighting systems are measured in actual energy consumed and not in maximum installed power
The 'lighting system design process' will be an important tool to
Define the lighting design according to user needs and investor interest
Achieve transparency, documentation and planning certainty
Ensure energy performance and lighting quality according to design
Lighting systems react instantly to users' needs, thereby reducing energy consumption
Timing, occupancy and daylight sensors
There is a discrepancy between natural and electric light with regard to intensity, color and dynamics of light
Natural light is dynamic from sunrise to sunset
Electric lighting is fixed: from wake-up to go-to-sleep
Light has an effect on
Mood, energize and relaxation
We need the right light for our activities at the right place at the right time
Metrics exist for visual aspects and new metrics are in development for non-visual aspects
Melanopic equivalent daylight illuminance
Age-related needs for light
Light levels entering the eye