Abstract
As civilization progresses in the past decades, illumination has been widely spreading to human’s daily life. Hence, energy consumption in illumination gradually increases in the last century. Due to breakthrough in manufacture technology of light emitting diode (LED), the recent achievements in LED industry, today LEDs have been able to provide high power, high illumination efficacy, long life-cycle, fast response, and vibration resistance. Typical applications are products for white-light LEDs in illumination, LCD display monitors, flashlights, and cell-phone backlights. Automotive lightings have provided drivers with road conditions at night as well as safer environment for passengers and pedestrians. Therefore, safety regulations for LED lightings in automotives are now established with beam profile and illumination intensity. In this thesis, procedures for design of motorcycle LED headlamp have been devised with following steps; 1) measurement of illumination intensity of LED light sources, 2) establishment of simulation models of LED light sources with experimental verifications, 3) design of a motorcycle LED headlamp by using elliptical reflector plus meniscus lens, 4) optics analysis for design satisfying ECE regulations. The final goal has been achieved with satisfactory results.