手機閃光燈之複合透鏡光學設計

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姓名

廖政凱(Cheng-Kai Liao) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

手機閃光燈之複合透鏡光學設計
(Optical Design of Compound Flash Light in Mobile Phone)

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至系統瀏覽論文 (2024-7-1以後開放)

摘要(中)

本論文主要為優化手機閃光燈之複合透鏡的光學設計，其中改良方式是將傳統菲涅耳透鏡方式所設計之折射型閃光燈透鏡加以改良，使其變成菲涅耳加上全內反射所構成的複合式透鏡，此優化能夠有效的提升閃光燈之光學效率以及目標區域的照度與均勻度。
　　在此研究中，我們先探討各種閃光燈的設計優劣，再從中歸納出目前手機閃光燈最理想的設計方式為複合式透鏡，接著分析複合式透鏡的相關文獻資料，隨後提出我們的設計概念及方法，由模擬結果得知此設計方式能將光學有效利用率提升 1.3 倍、中心照度提升 1.19倍、 0.7 視場平均照度度提升 1.32 倍， 1.0 視場平均照度提升 3.65 倍。最後，我們使用超精密加工搭配射出成型將閃光燈透鏡製作出來進行實驗量測，並將量測結果與模擬值做比對分析，其實驗與模擬的各項光學性能之誤差值皆有小於 4.26% 的水準。

摘要(英)

In this thesis, we mainly optimize the optical design of the compound flash light of the mobile phone. The proposed compound lens consists of a Fresnel lens and total internal reflection structure. This optimized lens can effectively improve the optical efficiency of the flash light, and the illuminance and uniformity of the target region.
In this study, we first discuss the design advantages and disadvantages of various flash light, and then conclude that the most ideal design method for the flash light of the mobile phone is the use of the compound lens. After the analyses of the relevant literature of the compound lens, we propose our design concepts and methods about the proposed compound lens. According to the simulation results, this design method can increase the optical utilization factor by 1.3 times and the center illuminance by 1.19 times. The average illuminance of 0.7 field and 1.0 field can be respectively increased by 1.32 times and 3.65 times. Finally, we made the designed flash lens and measured the optical performance. Compared with the simulation results, the error of the ecperiment results are all less than 4.26%.

關鍵字(中)

★ 閃光燈
★ 複合式透鏡

關鍵字(英)

★ Flash light
★ Compound lens

論文目次

摘要 I
Abstract II
致謝 III
目錄 IV
圖目錄 VII
表目錄 XII
第一章緒論 1
1-1　研究背景 1
1-2　研究動機與目的 3
1-2-1　閃光燈設計分析 5
1-2-2　複合式閃光燈文獻回顧 9
1-3　論文大綱 17
第二章基礎原理 19
2-1　引言 19
2-2　LED基本介紹 19
2-2　中場擬合法 24
2-3　幾何光學理論 26
2-2-1　折射定律 27
2-2-2　反射定律 28
2-2-3　全內反射 28
2-2-4　光線追跡法 29
2-3　菲涅耳透鏡 33
2-4　光度學 35
第三章　閃光燈設計 40
3-1　閃光燈規格制定 40
3-2　光源量測分析 42
3-3　複合式閃光燈透鏡設計 47
3-3-1　折射區透鏡設計 50
3-3-2　全反射區透鏡設計 55
3-4　閃光燈設計結果分析 64
3-5　閃光燈透鏡公差分析 67
第四章　閃光燈量測實驗 71
4-1　閃光燈成品結構 71
4-2　閃光燈光學量測 72
4-3　實測與模擬差異分析 73
第五章　結論 76
參考文獻 79
中英文名詞對照表 83

參考文獻

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指導教授

孫慶成楊宗勳(Ching-Cherng Sun Tsung-Hsun Yang)

審核日期

2019-9-19

推文