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LED


— Electronics

Gallium nitride transistors promise brighter future for LEDs

Although known for long life and low energy consumption, the LED uses a DC power supply, or driver, to overcome its sensitivity to current fluctuations, and it’s the high-frequency, high-speed switching transistors in this driver that’s made the LED so costly for use in large-scale commercial applications dominated by fluorescent and incandescent lighting. But that’s about to change. Fraunhofer researchers are developing a new, more economical means of making the high-performance gallium nitride transistors needed for the LED’s high-efficiency driver. Read More

Scientists create world's thinnest LEDs

In regular microchips, work is performed via the movement of electrons within the chip. Thanks to the recent creation of the thinnest-ever LEDs, however, such chips may one day be able to use light instead of electrons, saving power and reducing heat. Of course, those LEDs could also just be used as a really flat form of lighting, in any number of applications. Read More

LightSpur enlightens your heels

Anyone who runs or cycles after the sun goes down will tell ya, it's vitally important to make sure that you're visible to motorists. Nathan's LightSpur is one of the latest products designed to provide you with that visibility, and it looks like it draws equal inspiration from Tron and A Fistful of Dollars. Read More
— Around The Home

Smartcharge lightbulb keeps the lights on when the power goes out

When the lights go out due to a power outage at night, you'll probably have to spend the next few minutes fumbling around in the dark hoping to lay your hands on a nearby torch or trying to remember where you put the candles and matches. If only the lights could stay on for a while after the power was cut. The SmartCharge LED bulb has been developed with the simple aim of ensuring that users are never left in the dark again. It includes technology that's able to determine whether someone has just turned off the light at the switch, or there's been an actual power failure. If the latter, the bulb will provide users with hours of continuous light. Read More
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