Lighting : LIGHTING August-September 2017
34 LIGHTING MAGAZINE | August/September 2017 August/September 2017 | LIGHTING MAGAZINE 35 The term “smart systems” according to Wikipedia, refers to the incorporation of functions such as sensing, actuation and control that allow you to describe and analyse a situation, make decisions on the available data in a predictive or adaptive manner, thereby performing smart actions. TECHNICAL FEATURE How smart is your lighting design A look at how new smart technology is integrating into our daily life By Martin Klaasen* * Founder and principal of Klaasen Lighting Design. Paper presented at Hong Kong International Lighting Fair 2017 (Spring Edition). INTRODUCTION, WHAT IS SMART? Smart is a widely used term that seems to have different meanings to different people. According to the dictionary the adjective “smart” refers to a ready mental ability to respond in a, clever, shrewd or sharp way when dealing with other people or in businesses. Smart can also refer to an impressive, neat appearance in a more sophisticated and fashionable sense. The term “smart systems” according to Wikipedia, refers to the incorporation of functions such as sensing, actuation and control that allow you to describe and analyse a situation, make decisions on the available data in a predictive or adaptive manner, thereby performing smart actions. In general the “smartness” of a system is attributed to an autonomous operation that is based on closed loop control, energy efficiency and networking capabilities. CYBORGS I had the pleasure of meeting Neil Harbisson (Figure 1) during the 2015 PLDC in Rome and for those not aware, Neil is one of the first officially recognised cyborgs on this planet. His cyborg status (and photo with his implanted sensor on his head) is officially listed in his passport. Neil is unable to see any colours except shades of grey from white to black. He understood early in his life that sounds and colours are related and over the years he developed a sensor that converts colours into sounds (vibrations). The sensor is implanted on his skull and each colour that is sensed is translated into vibrations that he feels. So he “hears” colours. In Rome he told us he is able to discern more than 300 colours/sounds! I guess we classify this as smart! SMART LIGHTING, THE NEXT BIG THING? First there was just incandescent light, quite an invention at the time but not really something classified as smart, more an evolution of technology that was later followed by “energy saving” lamps. The big word here is “sustainable”, which most of the time is wrongly being translated by advocating lighting as producing fewer watts per square meter. But lighting is not designed for lux or energy meters, it is designed for people to see, to enjoy or socialise! To prove my point, we can do zero watts per square meter but then we would have no light... More recently light and lighting design was being (and still is in many case) branded as “human centric”, if anything it is a smart sales slogan invented by manufacturers to provide potential clients a new buying incentive. After all we are all humans, aren’t we? Figure 1. Neil Harbisson is a “colour blind” artist who “hears” colours. But there are actually some smart functions advocated within the human centric approach: one of them being tuneable light (Figure 2). Light that is being tuned to artificially reproduce the intensity and colours of natural daylight as it progresses during the day, from sunrise to dusk. It is said to have positive impact to our circadian rhythms, health and productivity, though to my understanding the jury is still out on the actual measurable effects. Today long haul intercontinental Figure 2. Varying CCT with the time of day can set circadian rhythms. flights, hospitals, offices and schools are applications where tuneable white light is being introduced. ARTIFICIAL DAYLIGHT One of the smartest tuneable day lighting systems available today has to be from CoeLux. An artificial lighting system that is capable of reproducing sun/day light for any longitude or latitude coordinates in the world. I have personally experienced it and the (visual) effect is amazing.
LIGHTING October-November 2017