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www.dailymail.co.uk_sciencetech 2015 02221.txt.txt

#The light bulb that lasts 37 YEARS: James Dyson's son invents £399 lamps that stay bright for decades By Sarah Griffiths for Mailonline Published: 16:53 GMT, 8 june 2015 Updated: 16:54 GMT, 8 june 2015 It is asked often how many men it takes to change a light bulb and in this case, it just one. The son of British inventor Sir James Dyson has created an innovative light that he claims will last, and stay bright, for almost four decades. Jake Dyson CSYS task light, which comes in three different forms, uses'Heat Pipe'technology to direct heat away from LEDS to stop them becoming dimmer and less efficient over time. Scroll down for video The inventor started work on the new types of LED lighting in 2006 after becoming frustrated that so many designs have a short life-span despite LEDS being invented originally to last a lifetime. His gripe with conventional lights is that they fail to protect LEDS from heat, exposing them to temperatures up to 130°C (266°F) and damaging the phosphorous coating, meaning LEDS produce worse quality light over time. To solve this problem, he has designed CSYS task lights that have unique technology in order to direct heat away from their LEDS. perating at 55°C (131°F), they don lose quality or efficiency for 37 years, according to his website. Speaking in a video, Dyson said his greatest innovation to date is the ability to cool LEDS which he said are ompletely critical to the LED market. e said the LEDS are hidden in conical cones, which produce an even spread of light, so they are highly efficient without using diffusers. The technology lets them produce arm, white lightfor years, instead of rival products which he says can become 30 per cent less bright within six months. Dyson has also come up with a way get the lights, which come in clamp, desk and standard light forms, to stay where people want them. sing 3-Axis Glide motion, CSYS task lights adjust horizontally, vertically and rotationally with the touch of a fingertip, the website says. While conventional lights usually rely on springs and tension to stay in position, the new design uses gravity. The arm moves vertically using a counterweight pulley system inspired by the construction crane lifts and drawing boards, while anti-friction bearings enable to it move horizontally. The lights are also touch sensitive so that people can dim them easily, while the CSYS lights remember the last lighting level. The LEDS use a fifth of the energy of a conventional halogen bulb and because there are few bulbs to replace in a lifetime, Dyson claims the light could save users up to £1, 200 ($1, 835) over 37 years. The CSYS light costs £399 ($610) for the clamp or desk light design and £599 ($916) for a freestanding taller version. On coming up with the design, Dyson said that his starting point was to investigate the failures of modern lights and not just create another one that looks good.''It hasn been a hindrance going down the same path as my father...I find it easier to invent than replicate, he said.''In some ways it easier to start from scratch...than to improve on something else someone has done'.

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