General Electric to sell parts of overseas lighting business
General Electric has reached an agreement to sell its overseas lighting operations in Europe, the Middle East, Africa and Turkey, the conglomerate said Thursday.
Feb 16, 2018
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Accelerating light beams in curved space
By shining a laser along the inside shell of an incandescent light bulb, physicists have performed the first experimental demonstration of an accelerating light beam in curved space. Rather than moving along a geodesic trajectory ...
The microscopic origin of efficiency droop in LEDs
Light-emitting diodes—or LEDs, as they are commonly known—have been slowly replacing incandescent light bulbs in applications ranging from car taillights to indicators on electronics since their invention in the 1960s.
Researchers create gallium nitride semiconductors doped with beryllium
Physicists at Aalto University have discovered a microscopic mechanism that will allow gallium nitride semiconductors to be used in electronic devices that distribute large amounts of electric power.
Research demonstrates method to alter coherence of light
Brown University researchers have demonstrated for the first time a method of substantially changing the spatial coherence of light.
Absorbing electromagnetic energy while avoiding the heat
Electrical engineers at Duke University have created the world's first electromagnetic metamaterial made without any metal. The device's ability to absorb electromagnetic energy without heating up has direct applications ...
A guide to understanding new light-bulb terms, LEDs and more
Anyone who has stood in confusion in the light-bulb aisle (and that's most of us) knows that technology and the push to save energy are continuing to flip the script on home lighting options.
Optimizing lighting for better learning
The intensity of artificial lighting has been shown to have a range of effects on our mood and our ability to concentrate. New research explores the color of lighting and its effect on our cognitive performance. The study, ...
How photonics can reshape the spectrum of light, and rehabilitate Edison's light bulb along the way
Traditional light bulbs, thought to be well on their way to oblivion, may receive a reprieve thanks to a technological breakthrough.
Researchers create light emitting diodes from food and beverage waste
Most Christmas lights, DVD players, televisions and flashlights have one thing in common: they're made with light emitting diodes (LEDs). LEDs are widely used for a variety of applications and have been a popular, more efficient ...
