(PhysOrg.com) -- Of the 1.5 billion people in developing countries who do not have electricity, many rely on kerosene lamps for light after the sun goes down. But now, researchers from Denmark have designed an LED lamp that ...
NXP Semiconductors today announced three major developments in its portfolio of mains connected LED driver solutions: the success of its SSL2101 LED driver IC in matching LED lifetimes in an accelerated lifetime test; the ...
Electronics & Semiconductors
Nov 5, 2009
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Just when you were finally warming up to the idea of swapping out your old light bulbs with compact fluorescent ones, you may soon find a new alternative at your local hardware store.
Energy & Green Tech
Oct 22, 2009
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(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 slightly greenish ...
Engineering
Oct 1, 2009
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HP today introduced the world's thinnest full-performance notebook PC as well as a slim, stylish consumer notebook that delivers an optimal balance of mobility, performance and affordability.
Hardware
Sep 15, 2009
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(PhysOrg.com) -- A new process for creating ultrathin, ultrasmall inorganic light-emitting diodes (LEDs) and assembling them into large arrays offers new classes of lighting and display systems with interesting properties, ...
Engineering
Aug 20, 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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(PhysOrg.com) -- Scientists have developed a lighting device that can change its color temperature throughout the day, matching the natural daylight chromaticities produced by the sun. Currently, no other type of lighting ...
Anyone who takes underwater photos knows how challenging it is to navigate in the water while holding a camera. Another obstacle can be trying to see through the camera's viewfinder or LCD screen while wearing an underwater ...
Consumer & Gadgets
Jul 2, 2009
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