本研究發展一閉迴路微射出壓縮成形技術，並探討多尺度複合式光學元件之Fresnel繞射結構複製性。研究中以LabVIEW與電腦系統建立一控制發展平台，在此平台上控制器的設計、模擬與應用皆可整合於同一架構下完成。模穴壓力控制則採用PI控制法則，以LabVIEW實現之，並比較模擬和實驗結果。在複合式光學元件製造部份，本研究使用FANUC ROBOSHOT α15-ίA全電式射出成形機及Asahi Kasei 80NH PMMA塑料進行實驗，由實驗結果可用已發展之模穴壓力控制方法將複合式光學元件以閉迴路微射出壓縮成形技術製造，並在模穴壓力響應比對上，模擬分析結果與實際射出充填結果相似，最後實驗結果顯示出閉迴路微射出壓縮成形技術，在模具溫度100°C時，可提高微結構轉寫率達98.27%。未來可應用於含有微結構與非球面表面之光學元件，以提高模造光學元件之光學性質。

This research is to develop a novel Closed-Loop micro injection compression molding (CLMICM) process for fabricating the multi-scale hybrid optical elements with Fresnel diffraction structure. The research adopts the LabVIEW and PC-Based control system to construct a controller developing platform. In this Study performance analysis, controller design, simulation, and system application have been completed and tested on this platform. The cavity pressure controller uses a mold-based PI controller for closed-loop control scheme. Experimental results have demonstrated the feasibility of the proposed system. Results show that the HOEs can be fabricated successfully by the CLMICM. The cavity pressure response is similar as show in simulation and experiment. Moreover, the groove filling ratio (GFR) has been achieved as 98.27% by CLMICM with mold temperature 100°C. Further research focuses on the CLMICM for optical elements with micro structures and aspheric surface to increase the optical performances.

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