New instrument that measures LED intensity could help cities with traffic light maintenance
(Phys.org)—In many of the nation's traffic lights, light-emitting diodes or LEDs with their brighter light and longer life have replaced standard bulbs. But knowing when to replace the signal heads has remained a guessing ...
LG Chem cable batteries may reshape mobile designs
'Spintronic' LED invented: New technology promises brighter TV, computer displays
University of Utah physicists invented a new "spintronic" organic light-emitting diode or OLED that promises to be brighter, cheaper and more environmentally friendly than the kinds of LEDs now used in television ...
Study may lead to less expensive consumer lasers and LEDs
(Phys.org) -- A recent theoretical study by a University of Waterloo doctoral candidate in nanotechnology engineering suggests that manufacturers may one day make lasers and LEDs out of silicon, with the potential to significantly ...
White LEDs directly on paper
Imagine a white luminous curtain waving in the breeze. Or wallpaper that lights up your room with perfect white light. The applications are not very far away. White LEDs, made from zinc oxide and a conducting polymer, can ...
Relocating LEDs from silicon to copper enhances efficiency
Chinese researchers have succeeded in transferring gallium nitride (GaN) light-emitting diodes (LEDs) grown on a layer of silicon to a layer of copper.
Leap Motion creates finger-happy gesture control (w/ Video)
Scientists track your carbon footprint, step by step
If you're driving your SUV to the farmers market to buy local asparagus and thinking you're making a difference for the planet, - not so fast. You're focused on a detail and ignoring the gas-hogging elephant in the room.
LEDs on silicon can reduce production costs
A new manufacturing technology is expected to greatly reduce the cost of light-emitting diodes (LEDs) in the future. For the first time ever, researchers at the Siemens subsidiary Osram Opto Semiconductors ...
Mini-projector for smartphones
Their very small displays sometimes make smartphones diffi cult to operate. In the future, a projector will help: if the cell phone is standing on a table, for instance, it can project a large-format display ...
Electrical engineers develop LED 'Magic Wands'
Engineers from the University of Bristol have developed illuminating magic wands that work by picking up radio signals from mobile devices. The wands, to be showcased on BBCs Bang Goes the ...
Virtual blue skies brighten the office of the future
There is light at hand for those who toil away in a poorly-lit office. Scientists at the CeBIT high-tech fair have developed a system that gives the feeling of working outside under blue skies.
LED's efficiency exceeds 100%
Samsung commits to LED screens, will spin off LCD unit
Samsung Electronics Co. is spinning off its LCD display manufacturing business and merging with its smaller LED display unit in a move that reveals the company's vision of the future of televisions and mobile screens.