| 摘要: | 本論文中，我們以通過聯合國歐洲經濟委員會 (the United Nations Economic Commission for Europe, UNECE) 制定的Regulation No. 113 Revision 3 Class B機車近遠燈法規及德國自行車近遠燈法規 (StVZO 22A TA23,K-mark) 作為設計目標。首先，我們針對多款市售高功率車規白光LED光源來分析其光學特性，在考量其光學特性及成本後，選定最符合需求的LED光源，並以達到市售同級最小的燈具尺寸進行設計。本設計雖然為單一反光鏡，但須通過近光燈與遠光燈的法規，同時提供發散角約30度的道路照明。
本論文所設計與驗證之反光鏡Designed300不僅通過UNECE No.113 Class B近遠燈法規，同時也通過K-mark近遠燈法規；最後完成的尺寸為35 mm × 69 mm × 30 mm (高×寬×深)、光學效率達83.4%、十公尺處最大照度Emax達280 lx、截止線線性度為±0.1度、銳利度達0.94、投射於法規面之光學有效利用率 (Optical Utilization Factor, OUF) 為38.0%、投射於路面 (Roadway) 之光學有效利用率為36.7%、設計中總光學有效利用率為74.7%。以我們的最佳知識所悉，此近遠燈為世界目前唯一同時實證通過E-mark與K-mark的單一反光鏡設計，可說是同級車前燈產品之世界最佳表現。
;In this thesis, we aim to design a white LED head lamp to meet Regulation No. 113 Revision 3 Class B (by the United Nations Economic Commission for Europe, UNECE), and Germany regulation of StVZO 22A TA23 (so called K-mark). In order to design a headlamp with the smallest size, we start from checking several high-quality power white LED and analyze the optical characteristic, and then select a most appropriate one with considering the performance and cost. The design is on a single optical reflector, but needs to meet the both regulations in low beam and high beam as well. Besides, an additional benefit to a rider is to provide ground illumination with a divergent beam of 30o.
Finally, we design and demonstrate a reflector (Designed300) which successfully meet the low beam and high beam regulations of UNECE No.113 Class B and K-mark. The final specifications are reported : the dimensions of are 35 mm × 69 mm × 30 mm (hight×length×depth), the optical efficiency is 83.4%, the maximum illuminance at a distance of 10 m reaches 280 lx, the linearity of the cutoff line is ±0.1o, the sharpness reaches 0.94, the optical utilization factor on the target plane (ground) is 38% (36.7%), and the total optical utilization factor reaches 74.7%. To our best knowledge, our headlamp is the only one meeting the low/high beam regulation of E-mark and K mark in the world, i.e., it can be regarded the best performance in the world. |
