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Human-centric lighting combines light’s visual, biological benefits

Human-centric lighting combines light’s visual, biological benefits

By BizLED Bureau

Mar 10, 2017: With the aim to understand human-centric LED lighting and to guide a smoother proliferation of the technology, LightingEurope and the International Association of Lighting Designers (IALD) have issued a joint paper in which they defined the benefits, technologies, and potential applications.

The position paper aims to make the way for smoother deployment of the technology that is becoming popular with more and more transition to LED lighting. The paper also makes it easy to choose companies that are leveraging human-centric lighting products in the market.

According to the paper, human-centric lighting should deliver combinations of “excellent visual, biological, and emotional effects of light.” The position paper explains the natural cycle of light’s impact on human body’s internal clock, and gives examples of how to mimic that cycle with electric light.

The paper also describes the concepts of technical and content enablers of human-centric lighting.

Technical enablers for human-centric lighting

  • Intelligent lighting (including sensors and controls to support dynamics)
  • Tunable white (at least tunable in light intensity and color)
  • Personal control (allowing personal settings depending on age, gender, chronotype, preference and activity)

Content enablers for human-centric lighting

  • Circadian light (following specific dynamics or a 24hr light-dark pattern of natural light)
  • Activity support (lighting pre-sets supporting typical activities in that application)
  • Natural light (directional and natural effects linking to the unconscious effects on people)
  • The paper says that human-centric lighting is aimed at providing the right light at the right place and at the right time.

The paper states that the benefits of human-centric lighting should be supported by scientific evidence and should be realized through dedicated design and specification process.

The paper states that human-centric lighting combines visual and non-visual impact of light to improve human health and performance. However, the benefits differ from application to application.

  • Visual benefits: Good visibility, visual comfort, safety, orientation
  • Biological benefits: Alertness, concentration, cognitive performance, stable sleep-wake cycle
  • Emotional benefits: Improved mood, energize, relaxation, impulse control.
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