臺灣博碩士論文加值系統

相機光學鏡頭設計重點在於設計參數的最佳化及可行性公差的分析；而製造上的重點則是每一部品製造的精確度與整體組裝的準確度。從目前的光學設計軟體上瞭解到在設計上重點研究已有突破性的發展；隨著機械工業精密度的增加，其製造的準確性也逐漸提高。但因光學鏡片在製作上的變動因素仍多且不容易控制，其中以光學鏡片的表面光學係數精度控制最為困難。因此本文研究如何使鏡片的光學面精度在製作上達到光學鏡片的理想設計值為目標。

本研究提出一套有效的光學參數補正方法來進行改良模具模仁的製造。此補正方法先利用表面輪廓儀來量測實際製造出的光學鏡片表面，計算與設計之理想光學鏡面面精度的差異量，利用回歸分析與逆回歸計算的方式，修正製造時的光學鏡頭參數，使得再製作的光學鏡片面精度更接近於設計值。在模具模仁的調校之前，最好能先了解所製造光學鏡片的品質狀況並決定是否適合進行補正計算。一些考量因素如製造射出成型的鏡片是否已達飽壓，是否應力均勻，是否達到光學的回轉對稱性等，本文中將會提出討論。

由實驗證明，本文所提方法確實能有效降低光學鏡片在製造上的誤差，使檢討時間也相對縮短，並增加組裝上的精準度與容許誤差更接近於設計值，讓影像光學的特性達到最佳的表現。

The major concerns of camera optical-lens designs are optimization of design parameters and analysis of feasible tolerance. For production, the major concerns are preciseness of individual components and their assembly. So far, the existing softwares have shown significant improvements on optical designs, and the preciseness improvement in mechanical industry also has advanced production quality. However, many factors affect lens quality in production, which are not easy to control. One of the most difficulties is the preciseness control of optical-lens surface. Threfore, this thesis studies how to produce lenses with optical surfaces which are as precise as those in optical-lens designs.

This study proposes an effective method of optical parameter revision for the manufacture of improved lenses with precise surfaces. The proposed method first measures the lens surface of manufacture by utilizing Surface Contour Instrument, calculates the difference between the surfaces of manufacture and design, and then revise the values of optical parameters of manufacture using regression-based methods. Using the revised values of design parameters, the precision improvement of reproduced optical-lens surfaces is expected. Before doing any adjustment to mold core pins, it is better to know the status of the produced lens and then determine whether the revision is appropriate for lens reproduction. Some concerns will be discussed such as whether lens is filled up fully; whether the stress is even; whether it has reached optical symmetry, etc.

Experimental results show that the proposed method can effectively reduce the manufacture errfor of optical lenses. Consequently, the debugging and development periods are shortened, and the quality of optical images can be enhanced.

誌謝………………………………………………………………… i
摘要………………………………………………………………… ii
Abstract…………………………………………………………… iii
目錄………………………………………………………………… iv
圖目錄……………………………………………………………… v
表目錄……………………………………………………………… vi
縮寫及符號對照表………………………………………………… vii
第一章 導論………………………………………………………… 1
1.1 背景…………………………………………………… 1
1.2 研究目標……………………………………………… 1
1.3 論文架構……………………………………………… 3
第二章 相關研究…………………………………………………… 4
2.1 光學設計與設計工具………………………………… 4
2.1.1 光學設計………………………………………… 4
2.1.2 光學設計軟體…………………………………… 5
2.1.3 可與光學軟體搭配的設計語言的研究………… 7
2.2 光學鏡片製造相關知識……………………………… 7
2.2.1 探討模具製作與成型條件對鏡片成品的影響… 7
2.2.2 工廠的製作精度能力的了解…………………… 9
2.2.3 鏡頭組裝技術及檢討分析技術的研究………… 10
2.3 最佳化在設計研究中之應用………………………… 12
第三章 光學設計相關模式建立…………………………………… 14
3.1 建立光學設計優化模式……………………………… 14
3.2 建立光學設計公差分析的模式……………………… 17
第四章 建立光學面精度量測與補正的模式……………………… 20
4.1 建立光學係數補正流程……………………………… 21
4.2 如何量測鏡片表面光學精度………………………… 23
4.3 如何分析此面精度量測的資料……………………… 25
4.4 建立光學係數補正驗算……………………………… 27
第五章 實驗成果與分析…………………………………………… 34
第六章 結論………………………………………………………… 42
參考文獻……………………………………………………………… 43
作者簡介……………………………………………………………… 45

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