新的自由曲面設計方法於準直TIR透鏡之應用

Free-form Surface Design Method for Collimator TIR Lens

潘葳妮(Wei-Ni Pan)

指導教授 ： 蔡忠佑

國立虎尾科技大學/工程學院/機械與電腦輔助工程系碩士班/碩士(2017年)

摘要

本研究主要提出一種全新的自由曲面(Free-form)設計方法，應用在建構準直全反射透鏡(Collimator TIR lens)之光學邊界上，其中包括了兩組自由曲面的同步設計。而應用此自由曲面設計方法所建構出全反射透鏡的邊界，能導引(包括反射與折射)所有光線至任意給定的方向上，並在目標平面上形成任意給定的光型，最後除了以ZEMAX軟體模擬以外，並以實驗證明此方法的有效性。其結果證明，本論文提供了使用者一種完整且可程式化的自由曲面設計方法，能廣泛、有效、且快速地應用在光學系統的設計上。

關鍵字

自由曲面設計 ； 全反射透鏡 ； 準直器

並列摘要

A free-form (FF) surface design method is proposed for a general axial-symmetrical collimator system consisting of a light source and a TIR lens with two coupled FF boundary surfaces. The profiles of the boundary surfaces are designed using a FF surface construction method such that each incident ray is directed (refracted and reflected) in such a way as to form a specified image pattern on the target plane. The light ray paths within the system are analyzed using an exact analytical model and a skew-ray tracing approach. In addition, the validity of the proposed FF design method is demonstrated by means of ZEMAX simulations. It is shown that the illumination distribution formed on the target plane is in good agreement with that specified by the user. The proposed surface construction method is mathematically straightforward and easily implemented in computer code. As such, it provides a useful tool for the design and analysis of general axial symmetrical optical systems.

並列關鍵字

free-form design ； TIR lens ； collimator

參考文獻

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