News tagged with leds

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Shedding light on risks of LEDs

If you haven't taken down your Christmas lights yet, do it very carefully. Those modern, light-emitting diode bulbs marketed as safe, environmentally preferable alternatives to traditional lights actually ...

dateMar 01, 2011 in Environment
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Nanoworld in color

Lights off – projector on. Lecture theaters, conference halls and seminar rooms currently have to be darkened if the speaker wants to project a presentation on screen. Unfortunately, the attention of ...

dateJan 21, 2011 in Engineering
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Powerful LED flash for smartphones

Researchers from Osram Opto Semiconductors have developed an LED chip that makes it possible to offer smaller pocket projectors, vehicle headlights, and cell phone camera flashes. In combination with a new ...

dateNov 26, 2010 in Semiconductors
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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, ...

dateJul 01, 2010 in Energy & Green Tech
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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 ...

dateOct 01, 2009 in Engineering
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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 ...

dateFeb 11, 2009 in Nanomaterials
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