Solid-state lighting pioneers long have held that replacing the inefficient Edison light bulb with more efficient solid-state light-emitting devices (LEDs) would lower electrical usage worldwide, not only "greenly" decreasing ...
General Physics
Aug 24, 2010
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(AP) -- Light-emitting diodes, or LEDs, are starting to become cost-effective alternatives to standard light bulbs and fluorescent tubes. That opens up some interesting possibilities, such as the combination LED light and ...
Hi Tech & Innovation
May 12, 2010
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A recent advance by Arizona State University researchers in developing nanowires could lead to more efficient photovoltaic cells for generating energy from sunlight, and to better light-emitting diodes (LEDs) that could replace ...
Nanomaterials
Mar 22, 2010
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University of Pittsburgh researchers have conducted the first cradle-to-grave assessment of light-emitting diode (LED) streetlights and determined that the increasingly popular lamps strike the best balance between brightness, ...
Energy & Green Tech
Mar 8, 2010
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(PhysOrg.com) -- In a new MIT project called Flyfire, tiny robotic helicopters with LEDs can act as flying pixels, moving together to create transient images in three-dimensional space. If it sounds like something out of ...
(PhysOrg.com) -- Researchers from Siemens have broken their own record for wirelessly transmitting data over white LED light. They’ve now achieved rates of 500 megabits per second (Mbps), shattering the previous record ...
The giants of the electronics industry make the big splash at the Consumer Electronics Show, as usual, with towering displays, celebrity spokespeople (Taylor Swift sang for Sony, live and in 3-D) and invitation-only soirees.
Consumer & Gadgets
Jan 15, 2010
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(AP) -- A third to a half of the Sony Corp. TV sets sold annually will be packed with 3-D features by the year ending March 2013, a senior executive said Thursday.
Hi Tech & Innovation
Nov 26, 2009
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One way the United States could slash its electricity use, dependence on fossil fuels and emissions of heat-trapping gases is really quite simple: better light bulbs.
Energy & Green Tech
Aug 13, 2009
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(PhysOrg.com) -- Monochromatic light-emitting diodes cover a large part of the visible spectrum with high effi-ciency. For blue light, nitride diodes achieve external quantum efficiencies in excess of 65%, i. e., one photon ...
Condensed Matter
Jul 23, 2009
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