Super-efficient light bulbs using LED technology outshines low-energy bulbs

The new generation of super-efficient light bulbs unveiled by scientists yesterday, would spell the end of regular filament models within three years. Employing Light Emitting Diode technology, the bulbs would use less electricity than the low energy versions that families are currently being urged to invest in. LED lights, which are used in electrical gadgets such as mobile phones and computers, have been judged unsuitable to light homes until now because they are not bright enough to illuminate whole rooms. But researchers at University of Glasgow believe that they have found a way of making the devices much brighter without using any more power.
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.

The research team has been using a technique called nano-imprint lithography to etch microscopicholes on to the LEDs, allowing more of their light to escape. The project is being developed in conjunction with the Institute of Photonics and the University of Strathclyde in Glasgow.

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    It’s not surprising how LED’s have evolved since the early days of indicator RED LED’s
    Today the Thin Film Technology Luxeon Rebel’s and Cree XR-E LED’s have crossed 100 lumens per watt in terms of efficiency… easily challenge the high efficiency CFL’s
    Added Advantage for for LED’s apart from being hyperefficient is they do not require Mercury or Lead, last 50K hours and are more pleasing to Eyes.
    I have a small reviews site for LED Flashlights at … flashlights have come a long way since MiniMag AA was considered as Professional Tool…. Today, we have Flashlights in which we can Program Light Output Levels and a flashlight just the size of bezel of MiniMag AA could produce upwards of 150 Lumens Lasting for more than 2 hours Regulated. (MiniMag Produces 4 – 7 Lumens, non Regulated, 1 hour and diminishing to less than 1 lumen in 2 hours!!!)

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