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Low-cost LEDs to slash household electric bills

A new way of making LEDs could see household lighting bills reduced by up to 75% within five years.

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NIST 'Vision Science Facility' aims for lighting revolution

Light-emitting diodes, or LEDs, have become popular with backpackers and cyclists who mount them on headbands for a reliable, hands-free source of illumination. Now, a new lab at the National Institute...

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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...

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Osram sues Samsung, LG for alleged LED patent violations

German lighting company Osram, which is owned by industrial giant Siemens, said Monday that it had filed suit against Samsung and LG of Korea for patent violations.

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Nano-LEDs emit full visible spectrum of light

(PhysOrg.com) -- Physicists from Taiwan have designed and fabricated nano-sized light-emitting diodes (LEDs) that emit light spanning the entire visible spectrum. Although the tiny full-color LEDs...

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Philips shows of glowing wallpaper

(PhysOrg.com) -- Recently, Philips has announced that it will partner with Kvadrat Soft Cells in order to create a luminous type of textile to the consumer market. The panels will work by integrating...

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Data are traveling by light

Regular LEDs can be turned into optical WLAN with only a few additional components thanks to visible light communication (in short, VLC). The lights are then not just lighting up, they also transfer...

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A touch of gold makes glass more see through

(PhysOrg.com) -- Physicists at the King's College London have discovered a means of making glass more transparent - by coating it in a thin layer of gold.

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High-quality white light produced by four-color laser source

(PhysOrg.com) -- The human eye is as comfortable with white light generated by diode lasers as with that produced by increasingly popular light-emitting diodes (LEDs), according to tests conceived at...

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Zinc oxide microwires improve the performance of light-emitting diodes

Researchers have used zinc oxide microwires to significantly improve the efficiency at which gallium nitride light-emitting diodes (LED) convert electricity to ultraviolet light. The devices are...

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Researchers roll out a new form of lighting

In this month's edition of Physics World, Paul Blom and Ton van Mol from the Holst Centre in Eindhoven describe a way of creating thin, flexible sheets of organic light-emitting diodes (OLEDs) using a...

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LED lights point shoppers in the right direction

Looking for an item in a large department store or mall can be like searching for a needle in a haystack, but that could change thanks to a hybrid location-identification system that uses radio...

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All set and ready to glow

A new technique that paves the way for manufacturing affordable LED light bulbs is to be exploited in the UK, in a deal that researchers say could have a dramatic impact on carbon emissions.

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Researchers combine mobile phone technology and microscopy

VTT Technical Research Centre of Finland has developed an optical accessory that turns an ordinary camera phone into a high-resolution microscope. The device is accurate to one hundredth of a...

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Virtual blue skies brighten the office of the future

There is light at hand for those who toil away in a poorly-lit office. Scientists at the CeBIT high-tech fair have developed a system that gives the feeling of working outside under blue skies.

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LEDs on silicon can reduce production costs

A new manufacturing technology is expected to greatly reduce the cost of light-emitting diodes (LEDs) in the future. For the first time ever, researchers at the Siemens subsidiary Osram Opto...

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Relocating LEDs from silicon to copper enhances efficiency

Chinese researchers have succeeded in transferring gallium nitride (GaN) light-emitting diodes (LEDs) grown on a layer of silicon to a layer of copper.

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'Spintronic' LED invented: New technology promises brighter TV, computer...

University of Utah physicists invented a new "spintronic" organic light-emitting diode or OLED that promises to be brighter, cheaper and more environmentally friendly than the kinds of LEDs now used in...

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Li-Fi: Edinburgh prof seeds LEDs for communication

(Phys.org)—"We believe wireless communications should be as reliable as lighting." That is a company motto of startup PureVLC (Visible Light Communication), which aims to connect the two—communications...

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Copper, gold and tin for efficient chips

With gold, copper or tin and special galvanizing processes, scientists are improving the function of semi-conductors and making the manufacture of microelectronic systems a child's play. Especially the...

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