臺灣博碩士論文加值系統

　　本研究主要是針對非對稱汽車頭燈進行參數化光學設計，探討如何應用參數化的變焦拋物面方程式於汽車頭燈之自由曲面式反射鏡設計，藉由調整方程式中的四項參數，達到歐規ECE R112及國內法規之光型要求，最後利用ZEMAX光學分析軟體與實體模型，進行比較驗證。

　　本研究以逆向工程的掃描作業將實體車燈反射鏡進行CAD建構，並依角度等分剖面，蒐集量測取得曲線點資料，利用點資料定義出變焦拋物曲線的a、b、c、d四項參數，而本研究共定義出八條變焦拋物曲線，並以此八條曲線建構出一參數化曲面反射鏡，再針對八組a、b、c、d四項參數進行靈敏度分析，得到各項參數對於光型變化的影響，進而調整出一組符合法規光型要求之參數設計自由曲面反射鏡。

The proposed research provided an alternative approach to design an automobile headlamp base on the parameterized optical design. Differing from the traditional free form reflectors, this paper uses eight variable-focus-parabolic curves, in which each curve is determined by four parameters, construct a free form reflector. In order to obtain a certain light pattern (e.g. Europe ECE R112 regulations for automotive headlamps), sensitivity analysis is necessary to determine the relationship between the curves’ parameters and the certain light pattern. Base on the results of sensitivity analysis, we can tune the useful parameters to finally satisfy the requested light pattern. The validity of the final design is demonstrated by means of ZEMAX simulations. It is shown that the parameterized free form reflector design yields a significant improvement in efficency compared to conventional free form reflector design.

摘要........................................i
Abstract..................................ii
誌謝......................................iii
目錄.......................................iv
表目錄.....................................vi
圖目錄....................................vii
符號說明...................................xi
第一章、緒論................................1
1.1 研究動機與目的......................1
1.2 文獻回顧...........................8
1.3 研究方法...........................10
1.4 本文架構...........................10
第二章、基本原理............................11
2.1 幾何光學原理.......................11
2.2 光線追蹤..........................15
2.3 齊次座標轉換.......................17
第三章、曲面邊界歪斜光線追蹤..................22
3.1 曲面邊界參數式.....................22
3.2 幾何光學的折(反)射..................24
3.3 變焦拋物面邊界之歪斜光線追蹤法.........28
第四章、非對稱光型分佈之參數化設計.............31
4.1 逆向Scan 3D.......................31
4.2 Zemax光型分析.....................32
4.3 曲面取點..........................34
4.4 參數化曲面建構.....................36
第五章、參數化調整模擬與結果..................38
5.1 參數調整..........................38
5.2 參數設計..........................50
5.3 比較驗證..........................61
第六章、結果討論與未來展望....................62
參考文獻..................................63
附錄A.....................................67
附錄B.....................................68
附錄C.....................................69
附錄D.....................................70
附錄E.....................................73
Extended Abstract........................74
簡歷......................................77

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