本篇論文展示了一光場虛擬實境系統設計，其系統僅需要一個顯示器，就可顯示一四維影像，並可提升穿戴時的舒適度、方便製造聚焦線索與降低成本等優點。在本論文中系統設計主要可以分為兩個部分，第一部分主要在分析不同形狀對於微透鏡陣列成像品質的影響。目前微透鏡陣列已廣泛應用於成像產品中，用於縮小系統體積、提升系統的可視角與擷取空間四維影像訊息等。而微透鏡陣列有許多不同形狀，最常見的為方型與圓型，但並沒人深入探討不同形狀對於微透鏡陣列成像品質的影響，因此，我們就在本論文中提出四種形狀的微透鏡陣列，分別為：方型、圓形、非球面方型與非球面圓型，討論各種形狀透鏡的成像品質。

第二部分將用第一部分最佳成像品質的形狀透鏡陣列進行光場虛擬實境系統的設計，此系統包含一顯示器、一混合透鏡與一透鏡組，我們提供了一硬體架構設計與優化過程，其優化過程分析圖表包含光斑圖、調製函數轉換圖、色差分析、賽德爾係數與輻照度圖。

透過這些分析過程可以讓我們所模擬設計的系統更貼近實際情況，避免造成模擬與實際製作時的差距，而此系統不僅縮小了系統體積、減少長期穿戴造成的眼睛疲勞、容易做出聚焦線索與方便製造立體影像等優點。

The paper describes a new light field virtual reality(VR) system’s key component development. The system includes a display, convex lens and hybrid lens. The hybrid lens is composed by aspherical microlens and diffraction element which is the key component in the system. We want to design a high image quality hybrid lens for the system. Firstly, we analyzed the different shapes of microlens array image quality. Microlens array are widely used in imaging systems to reduce systems sizes, extend the camera field of view, and capture the 3D objects information as well. Lenses in the array may have different shapes. The common shapes of microlens array is rectangular or circular. Different lens types have different aberration effects in the imaging systems, but people seldom discussed it. Therefore, we presented four different types of lenses: circular, rectangular, aspherical circular and aspherical rectangular, to analyze their effects on the image quality produced by the associated imaging system.
Secondly, we use the best image quality microlens array to the light field VR system from the first part simulation result. We present the system optimization process which include spot diagram, modulation transfer function(MTF), longitudinal aberration diagram, seidel aberration coefficients and irradiance map. These charts can help us comprehensive analysis the system of key component make it more perfect and closer practice situation. We use aspherical surface and diffraction to build hybrid lens which can correct primary aberration and chromatic dispersion. The system has the advantage of smaller size, low vergence-accommodation conflict, easy creation depth cue and stereo imaging.

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