Secondary Optical Lens Design for LED Motorcycle Headlamp

• Main Authors: Lee,Wei-Hua, 李偉華
• Other Authors: Chen,Jin-Jia
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/qu399b

碩士 === 國立彰化師範大學 === 電機工程學系 === 105 === In recent years, owing to the rapid increase of light-emitting diode (LED) luminous efficiency, LEDs gradually become the new century lighting sources. This thesis presents an optical design method of a projection LED motorcycle headlamp which consists of a single secondary optical lens and a single LED light source. The light emitted by the LED can be effectively projected and controlled to the lighting area on a target plane through the secondary optical lens to comply with the regulation (ECE R113) of the European Economic Community. The results of the optical simulation show that the total efficiency of the LED motorcycle headlamp designed by this method can reach above 90% on the target plane and the ground plane at a distance of 25-m away.