高解析度變焦數位相機鏡頭設計

Designing High-resolution Zoom Lens for the Digital Camera

林瑞興(Juei-Hsing Lin)

指導教授 ： 張明文

元智大學/工程學院/電機工程學系/碩士(2000年)

摘要

本論文針對設計高解析度變焦數位相機之鏡頭，依據CCD規格及有效焦距範圍，制訂一具鏡頭規格。然後推導無窮共軛光學系統之三群鏡組變焦軌跡方程，利用第三群透鏡組固定不動方式求取已知鏡組之變焦參考位置。將已知鏡組數據和求得的變焦參考位置引入光學設計軟體建立多重群組結構(multi-configuration)，以形成新的起始設計結構。
本論文為了使新的起始設計結構和鏡頭規格不相似處能結合在一起，並且使繞射分析指令-MTF在最大空間頻率處能達到30%以上。利用光學設計軟體的優化功能，設計可以控制系統初階特性、製造性、玻璃合理性和校正像差的優化運算指令集合，利用優化技巧，提出設計高解析度變焦鏡頭之方法，並設計一實用之變焦鏡頭。

關鍵字

digital camera ； zoom lens ； three-group lenses ； optimization ； high-resolution

並列摘要

This thesis hands in the design method of digital camera zoom lenses with high-resolution. Here depend on CCD’s specification and effective focal length, then make a lens’s specification. Deriving zoom tracking of three-group lenses in the infinite-conjugate system and getting zoom reference points of known lens groups in the third group fixed method. The known lens data and zoom reference points are fitted in computer design software to establish the multi-configuration as new starting design.
This thesis combines together to the end that unlike portion between new starting design and lens specification and achieves above thirty percent in the largest spatial frequency for MTF is diffraction analytic command. Here use the optimization operands of the computer design software and design a command set that is able to control the first-order properties、fabrication、reasonable glass and adjustable aberrations in the optical system. Using optimizing skills to hand a method that designs a high-resolution zoom lens of a practical one is created.

並列關鍵字

數位相機 ； 變焦鏡頭 ； 三群鏡組 ； 優化 ； 高解析度

參考文獻

2. 葉茂勳，「變焦鏡頭高斯光學之設計與分析」，國立交通大學光電所，博士論文，民國86年。

3. M.S.Yeh, S.G.Shiue,and M.H.Lu,”Two-optical-component method for designing zoom system,”Optical Engineering, Vol.34,pp.1826-1834, 1995.

1. Tanaka, T. & Kawagoe：U.S. Patent 5909318, 1998.

4. E. Hecht, Optics, 3rd ed., Addison Wesley Longman, New York, 1998.

5. Gregory H. S., Practical Computer-Aided Lens Design, 1st ed., Willmann-Bell, Virginia, 1998.