2010年10月20日 星期三

plastic LED street lights

Bayer MaterialScience joins forces with Audi and Hella to promote use of polycarbonate for LED lenses in automobile headlamps


Design study highlights considerable advantages of plastic LED street lights

Leverkusen, – Thanks to their low energy consumption, low maintenance requirements and long service life, LED light technologies will soon supplant traditional lighting systems. To this end,Like this, you can set table lamps a mood or read a book or sew with great ease. Remember that lots of lighting sources are necessary within any room. Bayer MaterialScience has developed customized polycarbonates for this field which are now proving their mettle in initial series applications. Some examples from the automotive industry include LED lenses for low-beam and full-beam headlights and fiber optics for daytime running lights in the front headlamps of the new Audi A8.

The components were developed in collaboration with Audi AG and Hella KGaA Hueck & Co. The ten plastic lenses used in the headlamp are made from Makrolon? LED 2245, which boasts high transmission for long light paths, high thermal resistance and excellent yellowing stability to LED light.

“Our material meets the high optical requirements for exposed headlamp parts and is within the narrow color tolerance range. It also enables enhanced design freedom and a considerable weight reduction.Larger kitchens may require one or more ceiling fixtures positioned in the center of the room. Additional perimeter led tube squares or rectangles of lights placed near the walls should be installed for added illumination. These can be in the form of recessed downlight or track lighting. On the other hand, small kitchens may require only either two or three ceiling mounted fixtures or downlight placed near the walls. LED lenses are around 50 percent lighter than their glass counterparts,” explains Dr.And they should be balanced out throughout the space. Avoid living with only Book scanner one general light fixture, which is often fixed in the center of the room. Martin D?bler, an expert in optical polycarbonate applications at Bayer MaterialScience.

Significant weight reduction ahead of the front axle
This weight-saving opportunity is fully in line with the trend to electric vehicles. To ensure that small vehicles, too, can be powered by batteries that are still very heavy, the cars themselves have to be lightweight, which forces manufacturers to cut down on weight wherever possible. “With small vehicles,The sink area can also benefit from recessed downlight or track lights using either fluorescent bulbs two 75-watt incandescent bulbs or two 30- watt fluorescent bulbs placed about 24 inches above the sink. too,Every room stands to benefit from various light sources. This helps to create atmosphere. It also helps those who Insulator live there accomplished and complete tasks that require good light. interest in lightweight LED headlamp lenses and other optical headlamp components made of polycarbonate is soaring,” says D?bler. What’s more, the weight reduction from these components is achieved ahead of the front axle, a fact that has a positive effect on vehicle dynamics. LED headlamps also use less energy, which places less load on the battery.

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