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This study addresses ultra-high brightness light-emitting diodes (LEDs) which, as defined here, are capable of operating at one watt or higher - typically one to five watts. The study details the circumstances leading to the emergence of high-power LED products. It then compares their attributes with conventional high-brightness LEDs as well as their recent demand for use in key applications, especially general illumination.
This study describes core technological structures and components of high-power LEDs and product innovations that are setting new efficacy standards. It also compares different types of LEDs and illustrates why these products are important to the growth of the overall lighting industry. The study then showcases the competitive environment and the future outlook envisaged for these high-power LEDs, such as legislation and regulations governing their production.
A detailed analysis of the technology, structure and composition of LEDs and highpower LEDs, also highlighting the crucial characteristics determining LED and high-power LED performance, as well as the latest technological innovations and advancements made by leading manufacturers across the world in the field of high-power LEDs. The chapter ends with a discussion on possible futuristic technology applications for these LEDs. Key application areas for high-power LEDs encompassing a whole gamut of diverse sectors, i.e. general illumination, airport andaviation, plant cultivation medical and backlighting applications; along with pertinent examples of high-power LEDs from our day-to-day lives.
A comparison between different types of ultra-high brightness LEDs and between modern and traditional lighting systems, and the different approaches adopted with regard to high-power LEDs for addressing varied lighting requirements have been analysed. Side by side, the crucial performance issues and the superiority of high-power LEDs vis-à-vis traditional systems like fluorescent lights, incandescent bulbs, tungsten halogen lamps, etc, is also firmly established.
An insight into the future outlook for high-power LEDs, which includes potential future applications, as companies constantly strive to come up with something new and gain the competitive edge, thereby grabbing a greater chunk of the market. Key end user industry areas like the automotive industry and mobile/cellular phones and are also examined.
An overview of the various regulations and legislations governing high-power LEDs is discussed. This includes a reference to important EU regulations like the CE marking, the General Production Safety Directive (GPSD), radiation safety norms, electromagnetic compatibility (EMC) issues, and last but not the least, the important RoHs (Restriction of Hazardous Substances) directive, and its applicability in other regions like Asia-Pacific and North America.
Company profiles of selected ultra-high brightness LED manufacturers are also included.