Advances in Ultra-high Brightness LEDs by Pira International Ltd

By Pira International Ltd

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No. 19, Hoping Road Taipei, Taiwan Republic of China T +886 2 2959 1090 F +886 2 2954 7006 Page 33 © Copyright Pira International Ltd 2007 Advances in Ultra-high Brightness LEDs Selected manufacturers American Bright Optoelectronics Corp. ) 13815-C Magnolia Ave. com Headquartered in Taiwan, Bright LED Electronic Corporation’s principal activities consist of manufacturing and selling of LED indicator lamps and LED display. Products include LED displays, IRLED, SMD, LED modules, LED lamps, lamp holders, backlights, axials, photo couplers, photo diodes, photo interrupters, photo links, photo transistors and receiver modules.

In the recent past, high-power LED manufacturers have made considerable advancements in terms of efficiency and have produced dies for white LEDs, which attain 80 lm/W. However, the negative effects of heat are more pronounced with regard to high-power LED fixtures, as compared to traditional lighting systems. 3. Thus, when taking into account power, optical and thermal losses, high-power LEDs have a system efficiency of 60%, which is at par with high pressure sodium bulbs. com However, it is important to note here that while evaluating efficiency, both the system and source efficiency should be looked at for the various technologies.

Applications include flashlights, reading lamps, architectural and garden lighting. Additionally, it can also lead to new lighting applications like optimally backlit signs with the thickness of a picture frame. BridgeLux Inc. com BridgeLux Inc. is a leading supplier of energy saving power-LED chips for high-demand market applications. Buyers generally use BridgeLux InGaN (indium gallium nitride) power-LED chips to substitute traditional bulb technologies with solid state products that provide a powerful and energy-efficient source of blue, green, or white light.

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