模造玻璃微陣列平凸透鏡之研究

Simulation and experimental study of glass moulding of plano-convex micro-lens array

王琬萱(Wan-Hsuan Wang)

指導教授 ： 趙崇禮

淡江大學/工學院/機械與機電工程學系碩士班/碩士(2013年)

https://doi.org/10.6846/TKU.2013.00736

摘要

平凸透鏡和陣列透鏡被廣泛應用於光學及光電系統中，在一些特定的
應用場合中，尤其是作業環境牽涉高溫或長期紫外光照射時，比起塑膠材
料，玻璃更具持久性。然而，玻璃陣列透鏡之製程要比起塑膠材料複雜得
多。雖然玻璃模造製程已被認為是生產精密玻璃鏡片最有效的方法之一，
但在一些非成像(如照明等)之應用上，精密碳化鎢模具的製造成本實在太高
且非必要。
本研究旨在探討碳化鎢/鈷平板模具熱壓成形平板玻璃以產出玻璃平凸
透鏡陣列的可行性。本研究使用有限元素法模擬及實驗以釐清開模/閉模
法、孔徑、孔間距、玻璃厚度及玻璃尺寸對透鏡之曲率半徑及其成形一致
性之影響。研究結果顯示模造方式、孔徑、孔間距及玻璃厚度皆會對透鏡
成品之曲率半徑有著造成很大之影響。

關鍵字

玻璃模造 ； 玻璃陣列透鏡 ； 有限元素模擬 ； 帶孔平板

並列摘要

Plano-convex lenses and lens-arrays are widely used in optical and optoelectronic systems. In certain applications, especially when high working temperature or long term ultra-violet exposure are involved, glass is more environmental sustainable than plastic material. However, generating glass lensarrays are far more complicated than those made of plastics. Though glass molding process is considered to be a very effective way for making precision glass lenses, the high cost of producing the precision WC molds is, in the case of applications in lighting, just too much and not necessary. This study aims to investigate the feasibility of producing glass plano-convex lens array by molding glass plate against a WC/Co plate with corresponding micro-hole arrays. Both experimental and FEM-based simulations study are carried out in this research to clarify the influence of open die/closed die molding, hole diameter, hole pitch,
glass thickness and glass size on the curvature and uniformity of the obtained lenses. The results showed that way of molding, hole diameter/pitch and glass thickness all have profound effects on the achievable curvature of the obtained lenses.

並列關鍵字

Glass molding ； Glass lens array ； Simulation ； Holed plate

參考文獻

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