Design and Analysis of High Brightness LED Emergency Lighting Lamp

• Main Authors: JIA-YUAN YE, 葉佳原
• Other Authors: BIN-HAN
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/30627530532596860523

碩士 === 國立中興大學 === 精密工程學系所 === 97 === In this thesis, a novel high brightness LED emergency lighting lamp is designed and developed, which can be used widely for the passageway lighting when the electric power is down. For the improvement of electric functions, several items are made as the following. First, the AC starting capacitive voltage transformer is utilized as the input power which can provide a stable source and the advantages of low weight, small volume and high efficiency. Second, a surge protector is installed to beep the circuit from surge damage. Third, a low voltage indicator is used to indicate the need of recharge. Forth, the backup LEDs are used to maintain the illuminance of this device when some LEDs are out of function. For the improvement of optical function, optical design and simulation are employed. Starting from the LED Lamp, the reflector and the outer mask are designed and evaluated for their best performance. With all those above results, a sample is built and tested for its validity. It is found this LED lamp can pass the required specifications and achieve the goals of high efficiency, long life, low power consumption.