定焦背投影透鏡系統設計

Fixed-focus Lens System Design for Rear Projection

陳信德(Hsin-Te Chen)

指導教授 ： 張明文

元智大學/電機通訊學院/電機工程學系/碩士(2008年)

https://doi.org/10.6838/YZU.2008.00084

摘要

本論文主要是設計一個定焦背投影透鏡系統應用於50吋螢幕背投影電視。研究方向利用Zemax光學軟體找出最佳化的透鏡系統，在設計過程中搭配合適的評價函數，進而設計出兩種不同反焦式架構的廣角定焦透鏡系統，而設計架構皆採用七片透鏡來達到光學效能。
藉由探討這兩種透鏡系統的公差分析結果，可得到光學元件製造誤差變異對成像品質的影響是符合預定規格；再依據公差分析結果將公差範圍重新分配，使定焦透鏡系統有較寬鬆的製造公差及組裝公差，且具有低成本優勢、可製造性的廣角定焦透鏡系統。另外在前鏡組與後鏡組之間放置一個反射鏡，改變系統光路的方向，可減少背投電視徑深厚度。

關鍵字

定焦鏡頭 ； 公差分析 ； 光學設計

並列摘要

In this thesis, we study the fixed-focal projection lens system to apply to a 50 inches screen rear projection television. The research direction is using the Zemax software to find out the optimized lens system. In its design process we choose the appropriate merit function to design two kinds of different reverse telephoto structure of the wide-angle fixed-focal lens system. All the two processes seven lenses are used to achieve the optical performance.
By discussion of these two kinds of lens system's tolerance analysis result, we obtain the optical component manufacture error variation which conforms to the predetermined specification to the image quality influence. According to the tolerance analysis result, we will redistribute the tolerance range, to cause the fixed-focal lens system to have the easy manufacture, the easy assembly and the advantage of low cost . It is possible to make the fixed-focal lens system. In addition, to arrange a reflection mirror between the front group and the rear group, it changes lens system path of rays direction. The function can reduce the rear projection television of the radial direction thickness.

並列關鍵字

fixed-focus Lens ； optical design ； tolerance analysis

參考文獻

[2].儀器中心，光機電系統整合概論，儀器科技研究中心出版，新竹，2005。

[11].許紘齊，精巧型矽基投影機照明系統之研究，長庚大學光電研究所碩士論文，2004。

[9].JURGEN R. MEYER-ARENDT,M.D, Introduction to Classical and Modern Optics, Prentice-Hall, 1989.

[1]. http://www.pjtime.com/2007/4/68237967.shtml

[3].耿繼業、何建娃，幾何光學，全欣資訊圖書，第四本，1995。