News tagged with leds

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LED efficiency puzzle solved by theorists

Researchers at the University of California, Santa Barbara, say they've figured out the cause of a problem that's made light-emitting diodes (LEDs) impractical for general lighting purposes. Their work will help engineers ...

Apr 19, 2011
4.6 / 5 (22) 16 | with audio podcast

Flexible LEDs for implanting under the skin

(PhysOrg.com) -- Researchers in the US, China, Korea and Singapore have collaborated to develop flexible ultra-thin sheets of inorganic light emitting diodes (LEDs) and photodetectors for implantation under ...

Oct 18, 2010 report
4.8 / 5 (19) 12 | with audio podcast

Tiny particles make LED light more pleasing

(AP) -- Light-emitting diodes are prime candidates for replacing inefficient incandescent bulbs, but have a few things working against them. They can provide a pleasing warm light or they can be energy-efficient, ...

May 05, 2009
4.9 / 5 (11) 0

Solar-powered LED light made of bottles

(PhysOrg.com) -- The Solarbulb, a new lighting gadget from miniWIZ, doesn't exactly come with all parts included: you have to add your own water or soda bottle. The LED Solarbulb screws onto just about any ...

Jan 20, 2009 weblog
3.3 / 5 (26) 7

Smart Lighting: New LED Drops the 'Droop'

(PhysOrg.com) -- Researchers at Rensselaer Polytechnic Institute have developed and demonstrated a new type of light emitting diode (LED) with significantly improved lighting performance and energy efficiency.

Jan 12, 2009
4.8 / 5 (24) 14

Giving LEDs a cozy, warm glow

When the 2014 Nobel Prize in physics was awarded this October to three Japanese-born scientists for the invention of blue light emitting diodes (LEDs), the prize committee declared LED lamps would light the ...

Nov 19, 2014
4 / 5 (6) 1