Due to a number of benefits offered by light emitting diode (LED) lighting in comparison to traditional incandescent bulbs, LED lighting is increasingly getting popular. Some of the benefits include typical lifecycle of 50,000 hours, low maintenance and low energy consumption. Borealis Lighting, a division of PolyBrite International (USA), is at the forefront of LED lighting technology, designing and manufacturing solid-state LED lighting systems and products. Borealis Lighting's patented PolyBriteTM polymer and light transmitting technology is a unique polymer/LED combination that conducts, angles and radiates a light source through the polymer lens material illuminated by LEDs.
The lenses of several lamp products from Borealis lighting for indoor and outdoor illumination are molded from Bayer MaterialScience's Makrolon® polycarbonate resin. Makrolon polycarbonate offers advanced benefits for this application. For example, it does not block as much light as other materials, and the higher light transmittance allows the PolyBrite technology to use fewer LEDs. According to the company, Makrolon® PC resin was selected due to high impact strength and glass-like transparency, among the many other benefits.
Borealis Lighting uses Makrolon 6557 polycarbonate in its R20, PAR30 and PAR38 lamps. The lamps are used in a variety of general lighting applications, including residential, commercial and retail areas. The Borealis lamps that feature Makrolon polycarbonate resin all provide brightness that is comparable to incandescent lamps, but with reduced glare and improved shock and vibration resistance. The PolyBrite combination of polymer and LEDs can be either extruded into a variety of light-scattering shapes, or injection molded, depending on the particular application.
28-May-09 
