1000 lumen LED developed - new technologies emerge

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1000 lumen LED developed - new technologies emerge

Get ready for a hand held data projector, a search light the size of a penlight, and a wide number of light intensive applications. Not to mention new styles of domestic lighting with LEDs built in that will last for 100 years or so and never need changing.

The Ostar Lighting LED, which will be launched on the market this summer, can provide sufficient light for a desk from a height of two meters, for example. Its small size also enables the creation of completely new lamp shapes.

A lumen (lm) is the unit of measurement for the amount of light emitted by a light source. A 60-watt light bulb emits 730 lm, while a 50-watt halogen lamp has an output of approximately 900 lm.

Different types of LEDs are used today in various areas, for example as background lighting in cell phone displays, as well as in car turn-signal lights, brake lights, and daytime running lights.

The benefits are obvious:
The diodes are extremely small and consume little energy because they efficiently convert electricity into light. The Ostar Lighting LED, for example, produces 75 lumens per watt at 350 milli-amperes of operating current — much more than an incandescent lamp, which only converts a fraction of the electricity supplied into light, with the rest lost as heat energy.

In addition, LEDs contain no lead or mercury, which makes them very environmentally friendly. They also last around ten times longer than halogen lamps and 50 times longer than incandescent lamps, thereby helping to significantly reduce maintenance costs.

For many years, however, LEDs were unsuited for room lighting applications because they weren’t bright enough. The Ostar Lighting LED marks a further step toward suitability for such applications.

Osram has already supplied a Migros supermarket in the Swiss canton of St. Gallen with 18,000 Golden Dragon LEDs, which have a lower output than the Ostar Lighting units.

These LEDs emit neither UV rays nor heat, which means they have virtually no negative impact on delicate grocery items such as milk, meat, fruit and vegetables.

 http://www.physorg.com/news...
By netchicken: posted on 17-3-2007








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