頭戴式顯示裝置波前檢測之初步探討

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曾凱佑(Kai-Yu Tseng) 查詢紙本館藏

畢業系所

照明與顯示科技研究所

論文名稱

頭戴式顯示裝置波前檢測之初步探討
(Preliminary Research on the Wavefront Measurement of Wearable Display Device)

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摘要(中)

現今頭戴式裝置發展迅速，但在產業中缺乏一個完整的檢測架構用來
量測其光學系統，常用的檢測設備僅僅量測光學系統的成像品質，並無法作更近一步的模擬人眼所見之影像。因此必須依照人眼的視場大小及瞳孔變化，並將人眼像差也一併考慮。這是目前的產業中的檢測設備無法完整量測分析的部分。
本篇論文中，提出寬視場波前量測系統之基本架構，硬體架設方面，使用本實驗室開發的高動態範圍Shack-Hartmann 波前檢測器，利用大片幅相機使其適合大視角量測，並使用三色RBG 點矩陣作為光源。程式撰寫方面，控制LED 點矩陣對不同視場進行RGB 三色的波前量測，且完成不同視場的高動態範圍取像；最後利用成像位置及擬合的像差，對軸對稱的光學系統分析其場波前數據，計算數個市售VR 眼鏡對成像影響較大的光學參數，並初步分析Shack-Hartmann 波前檢測器於光軸上的場波前數據。
此量測系統為初步量測架構，未來其他設備的增進及改善可以使其擁有更
多可量測的數據，並對頭戴式裝置建立一個評估的標準。

摘要(英)

In recent years, head-mounted devices have been developed rapidly.
Nevertheless, they lacked a completetesting method for measuring the optical elementsinthe industry. The commonly usedtesting devices only measured the imaging quality of the optical elements and couldn’t make a closer simulation of the image seen by the eyes. Therefore, we had to simulate the magnitude and the variety of human eyes and take the aberration of the eyes on account. This is the
part of the current industry where testing devices cannot be fully measured and analyzed.
In this study, the basic structure of the wide-field wavefront measurement system is proposed. For hardware erection, high dynamic range Shack-Hartmannwavefront sensordeveloped by our laboratory is used. Modification for
large viewing angle measurement is conducted and three-color RGB array is used as the light source. In terms of programming, the LED array is controlled to perform field wavefront of the three colors of RGB measurement for different field and high dynamic range photograph of different field is completed. Finally,using the imaging position and the fitted aberration, the field wavefront data is analyzed for the axisymmetric optical system and the optical parameters that have a large impact on imaging by several available VR glasses, and only the field wavefront on the optical axis of Shack-Hartmannwavefront sensor is analyzed.
This measurement system is apreliminary measurement structure, and future enhancements and improvements to other devices will allow it to have more measurable data and establish an evaluation standard for head-mounted devices.

關鍵字(中)

★ 頭戴式顯示裝置
★ 波前檢測

關鍵字(英)

論文目次

中文摘要 i
Abstract ii
誌謝 iii
目錄 iv
圖目錄 vii
表目錄 x
一、緒論 1
1-1　　研究背景 1
1-2　　文獻回顧 2
1-3　　研究動機 4
二、研究內容與方法 6
2-1　　光學像差理論 6
2-1-1　波前像差與橫向像差 7
2-1-2 色差 8
2-1-3 Seidel像差多項式 9
2-1-4 Zernike像差多項式 11
2-1-5 軸對稱場波前像差 13
2-2 Shack-Hartmann波前檢測器 18
2-2-1 量測原理 18
2-2-2 高動態Shack-Hartmann波前檢測器 19
2-2-3 動態範圍和靈敏度 19
2-2-4 點指派(Spot Assignment) 21
2-2-5 光點質心計算法 22
2-2-6 點光源位置量測 23
2-2-7 波前重建 24
三、實驗方法 26
3-1 實驗架構 26
3-1-1 Shack-Hartmann波前檢測器硬體架構 27
3-1-2 LED點光源 30
3-2 光學系統校正 34
3-3 寬視場取像控制 37
3-4 場波前掃描 44
四、實驗分析 45
4-1 寬視場畸變之數據分析 46
4-2 寬視場場曲之數據分析 53
4-3 寬視場色差之數據分析 64
五、結論 69
參考文獻 71

參考文獻

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指導教授

梁肇文(Chao-wen Liang)

審核日期

2019-8-13

推文