Those who want to switch from energy wasting incandescent light bulbs but can't stand the fluorescent alternative may soon have another choice - LEDs or light emitting diodes. Chances are you or one of your neighbours already uses LED Christmas lights or maybe even an LED flashlight. They're durable, use very little electricity and don't even get hot but they've been slow to catch on for household use because of their limited candlepower.
Now a team from the University of Glasgow thinks it has a solution.
Now researchers believe they have found a way of introducing a new generation of LEDs into households that are brighter and use even less power than standard energy efficient light-bulbs.
Dr Faiz Rahman, the researcher leading the project at the University of Glasgow, said: “By making microscopic holes on the surface of the LEDs it is possible to extract more light, thus increasing the brightness of the lights without increasing the energy consumption. As yet, LEDs have not been introduced as the standard lighting in homes because the process of making the holes is very time consuming and expensive. However, by using world-class facilities at the University of Glasgow we believe we have found a way of imprinting the holes into billions of LEDs at a far greater speed, but at a much lower cost.
“LEDs not only use less power than current energy efficient light-bulbs but they are much smaller and can last years without needing to be replaced. This means the days of the humble light-bulb could soon be over."
The team of researchers use a technique called nano-imprint lithography to directly imprint the holes, imperceptible to the human eye, onto the LEDs allowing more of the light to escape."
Now a team from the University of Glasgow thinks it has a solution.
Now researchers believe they have found a way of introducing a new generation of LEDs into households that are brighter and use even less power than standard energy efficient light-bulbs.
Dr Faiz Rahman, the researcher leading the project at the University of Glasgow, said: “By making microscopic holes on the surface of the LEDs it is possible to extract more light, thus increasing the brightness of the lights without increasing the energy consumption. As yet, LEDs have not been introduced as the standard lighting in homes because the process of making the holes is very time consuming and expensive. However, by using world-class facilities at the University of Glasgow we believe we have found a way of imprinting the holes into billions of LEDs at a far greater speed, but at a much lower cost.
“LEDs not only use less power than current energy efficient light-bulbs but they are much smaller and can last years without needing to be replaced. This means the days of the humble light-bulb could soon be over."
The team of researchers use a technique called nano-imprint lithography to directly imprint the holes, imperceptible to the human eye, onto the LEDs allowing more of the light to escape."
It's hoped these new bulbs could be on the market for household use within three years.
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