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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 蘇國棟(Guo-Dung Su) | |
| dc.contributor.author | Yi-Shiuan Cherng | en |
| dc.contributor.author | 程怡瑄 | zh_TW |
| dc.date.accessioned | 2021-06-16T10:21:36Z | - |
| dc.date.available | 2018-09-07 | |
| dc.date.copyright | 2013-09-07 | |
| dc.date.issued | 2013 | |
| dc.date.submitted | 2013-08-16 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/60558 | - |
| dc.description.abstract | 昆蟲的複眼是由幾千到幾萬個小眼所組合而成，其優點為能提供廣大的視角以及偵測高速的動作。因此，和傳統平面式光學元件相比，複眼式光學元件被應用在廣視角成像系統中，能大幅減少透鏡數目以及系統體積。然而傳統製程技術皆屬於平面製程，使得在曲面上製作微結構變得困難。在本篇論文中，我們提出一種在球面上製作微透鏡陣列的方法。利用熱回流製造緊密排列的微透鏡陣列，再用多次翻模技術將平面轉製成球面，製程的中間產物包含了凹面微透鏡陣列的曲面模具，這使得曲面型微透鏡陣列可以很容易地被大量複製。我們使用聚二甲基矽氧烷做為模具和透鏡的材料，由於液態的聚二甲基矽氧烷具有良好的覆蓋性，固化後具有彈性且對可見光波段的穿透度高，因此很適合用作微透鏡陣列的複製材料。實驗結果對曲面型微透鏡陣列進行分析，並和其他不同製程方法相比較。這種方法提供了簡單且低成本的曲面微透鏡製程。 | zh_TW |
| dc.description.abstract | An insect’s compound eye may consist of thousands of ommatidia. It allows wide field of view and can detect fast movement. Therefore, compared to traditional planar optical devices, compound-eye structured optical elements can reduce components and volume when being applied to compact imaging system. However, fabrication process for microstructures on curvilinear surface has a lot of difficulties since traditional fabrication techniques are planar. In this thesis, we present a method to fabricate microlenses on spherical surface. Microlenses with high fill factor were formed by thermal reflow technique, followed by multiple replication processes to transfer the microlenses from planar substrate onto spherical surface. During the process, we made a curved mold with concave microlenses, which allowed this method to be duplicable easily. Polydimethylsiloxane (PDMS) elastomer was employed as the material of both microlenses and mold. Because of the good coverability of liquid PDMS and the flexiblility and transparency for visible light after curing, PDMS is suitable for the replication process. The experimental results of curved microlens arrays were analyzed and compared with the other fabrication methods. This method provides a simple and low-cost fabrication process. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T10:21:36Z (GMT). No. of bitstreams: 1 ntu-102-R00941040-1.pdf: 4581067 bytes, checksum: 2bdbf8ed623bb957b9f8ab6f7de1e31e (MD5) Previous issue date: 2013 | en |
| dc.description.tableofcontents | 口試委員會審定書 #
致謝 i 中文摘要 ii ABSTRACT iii CONTENTS iv LIST OF FIGURES vi LIST OF TABLES xi Chapter 1 Introduction 1 1.1 Review of curved microlens array fabrication technologies 1 1.1.1 Reconfigurable microtemplating [10] 4 1.1.2 Laser lithographic fabrication [13] 5 1.1.3 Bridge-structured microlens arrays 6 1.1.4 3D micro projection [16] 7 1.1.5 Femtosecond (fs)-laser microfabrication [18] 8 1.2 Applications of curved microlens array 11 1.2.1 Curved artificial compound eye 11 1.2.2 Bionic contact lens 12 1.2.3 Bio-inspired compact camera [22] 13 Chapter 2 Aberrations 16 2.1 Chromatic aberration 19 2.2 Seidel aberrations 20 2.2.1 Spherical aberration 21 2.2.2 Coma 22 2.2.3 Astigmatism 23 2.2.4 Field curvature 24 2.2.5 Distortion 25 2.3 Aberration correction by microlens array 26 2.3.1 Reduction of distortion [27] 26 2.3.2 Reduction of spherical aberration [28] 28 Chapter 3 Working principle and fabrication process 30 3.1 Thermal reflow 30 3.2 Materials 35 3.2.1 AZ P4620 36 3.2.2 Polydimethylsiloxane 37 3.3 Fabrication process 38 3.3.1 Photoresist MLA 38 3.3.2 Planar PDMS MLA 38 3.3.3 Surface treatment 40 3.3.4 Curved PDMS MLA 41 Chapter 4 Experimental results 43 4.1 Photoresist MLAs 43 4.2 Planar PDMS MLAs 47 4.3 Curved PDMS MLAs 55 Chapter 5 Conclusion 70 REFERENCE 72 | |
| dc.language.iso | en | |
| dc.subject | 微透鏡陣列 | zh_TW |
| dc.subject | 翻模製程 | zh_TW |
| dc.subject | 視角 | zh_TW |
| dc.subject | 球面 | zh_TW |
| dc.subject | 人工複眼 | zh_TW |
| dc.subject | replication process | en |
| dc.subject | field of view | en |
| dc.subject | artificial compound eye | en |
| dc.subject | spherical surface | en |
| dc.subject | microlens array | en |
| dc.title | 在球面上應用多次翻模製造之聚二甲基矽氧烷微透鏡陣列 | zh_TW |
| dc.title | Fabrication of Polydimethylsiloxane microlens array on spherical surface using multi-replication process | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 101-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蔡永傑(Wing-Kit Choi),黃鼎偉(Ding-Wei Huang) | |
| dc.subject.keyword | 球面,微透鏡陣列,人工複眼,視角,翻模製程, | zh_TW |
| dc.subject.keyword | spherical surface,microlens array,artificial compound eye,field of view,replication process, | en |
| dc.relation.page | 77 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2013-08-16 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 光電工程學研究所 | zh_TW |
| 顯示於系所單位： | 光電工程學研究所 | |
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