News tagged with leds

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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 ...

Jul 10, 2012
4 / 5 (6) 3

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 BBC’s Bang Goes the ...

Apr 17, 2012
5 / 5 (1) 0

All That Glitters Is Now Gold

(PhysOrg.com) -- In full sunlight at mid-day, gold objects are brilliant and richly colored. Put those same objects in a dark interior room with only fluorescent lamps, however, and they will look pale and ...

Oct 01, 2009
3.4 / 5 (5) 0

LEDs bringing good things to light

Forecasting the future of technology is anything but an exact science. In late 2006, for instance, my colleagues and I put together an article outlining our predictions for the top 10 tech trends for 2007. My record was, ...

Jul 01, 2010
3 / 5 (3) 1

Powerful mini-LEDs for thin touchscreens

Osram Opto Semiconductors has developed an infrared light-emitting diode (IRED) for use in very thin optical touchscreens. Called the SFH 4053, the small new lamps are housed in a frame surrounding a display. ...

Sep 16, 2011
4 / 5 (4) 0

Strength through diversity

(PhysOrg.com) -- Tiny light-emitting diodes with optical microsystems that can produce all the colors of the rainbow, a new method for producing printed circuit boards - Fraunhofer researchers are showing ...

Feb 11, 2009
5 / 5 (1) 0

Green LED is bright enough for large projector

Osram Opto Semiconductors has developed an extremely bright, green light-emitting diode (LED) that makes LED projectors in office environments possible. Projectors in conference rooms have to be very bright ...

Mar 17, 2011
5 / 5 (1) 0