What is Human Centric Lighting?

Human Centric Lighting

Human Centric LightingHuman Centric Lighting is the name given to lighting that is designed for the visual, emotional and biological wellbeing of humans.

Humans today spend about 90% of our time indoors under artificial lighting. With the development of LEDs, we now have unprecedented ability to adjust the exact parameters of that lighting. Because of this there is now much more interest in the affect that different light sources have on the body, physiologically, psychologically and biologically.

There is now an increasing volume of research around this subject, in a number of different areas such as: Increasing productivity in the workplace, increasing patient recovery rates in hospitals, improving sleep quality and improving focus in classrooms. ‘

In order to quantify light for these studies a tool that uses a spectrometer is essential. It is necessary to measure not only the intensity (Lux) of the light but also analyse the spectral power distribution, Correlated Colour Temperature, Colour Rendering Index and often other parameters.

Dynamic Lighting Using Tuneable LEDs

Dynamic Lighting from day to nightNatural lighting, from the sun and moon, is not consistent. Throughout the day the light changes from a low intensity, low CCT light in the morning, through to a bright, high CCT light mid-afternoon and then back into a dim evening light with low CCT. Our natural body clock uses this changing light to control the cycle of hormones, circadian rhythm, that affects mood, alertness and sleepiness throughout the day.

However, being in an office lit by one type of light at a constant intensity and CCT all day can disrupt this rhythm and lead to health problems. In order to combat this dynamic lighting is becoming increasingly mainstream, where the light’s intensity and CCT can be tuned to mimic natural light and minimise disruption to the body’s daily rhythm. Well-designed dynamic lighting has the potential to increase alertness, motivation, productivity and sleep quality while reducing stress and daytime tiredness.

What are the Challenges?

Human centric and dynamic lighting is a new frontier for the lighting industry, designers, architects and lighting users. How do we measure the impact of human-centric lighting? How do we account for varying environmental conditions? How do we leverage the long-life and low energy potential of LEDs most effectively? It all starts with being able to measure and get insight about light. At Wave we call this getting ‘clarity from light’. Wave’s mission is to make measuring light accurate, easy and connected so that we can live in a healthier, safer, more beautifully lit world. Click below to find out more.

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