手機數位相機防手振機構之最佳化

Optical Design of the Anti-Shake Mechanism of Digital Cameras in Mobile Phones

吳定遠(Ting-Yuan Wu)

指導教授 ： 趙昌博 ； 黃健生

中原大學/工學院/機械工程研究所/碩士(2006年)

https://doi.org/10.6840/cycu200600882

摘要

目前市面上的照像手機越來越普及了，畫素也不斷的提高。但衍生出來的問題便是手機手振後所造成的影像模糊。而本研究則是提出一個新穎防手振機構，並以影像感測元件(CMOS/CCD)來進行反手振的補償，其大小為1.5cm×1.5cm。首先設計出具備二軸運動的機構，其運動方向與影像呈垂直及水平移動，並且以二個音圈馬達(VCMs)來進行驅動，做為達到補償晃動所造成之影像模糊。而影像感測元件則安置在補償振動機構上，其優點在於補償方式為移動影像感測器元件，與鏡片组無關，所以適用於各式之鏡片組。而最佳化的過程則是透過基因演算法(GA)對VCMs力量的靈敏度來決定，並進行機構尺寸、重量、材質、電磁力等等來作通盤考慮，使得機構整體效率能越高越好。

關鍵字

靈敏度 ； 防手振 ； 音圈馬達(VCMs) ； 基因演算法(GA)

並列摘要

Cameras in cell phones in the current market become popular recently. The number of pixels in the cameras is continuously increased. One of the next challenges of the cell camera development is to avoid the picture blurring caused by hand shakes. This proposes an novel anti-shake mechanism in size smaller than 1.5cm x 1.5 cm and image sensor component (CMOS/CCD) to realize the function of anti-shake. The mechanism consists of two axial motion, and it can move along vertical and horizontal directions. The actuation forces are realized by two voice coil motors (VCMs) for the compensation of image blurring caused by hand shake. The image sensor component was installed at shake compensation mechanism, the advantage of which is by the method of compensation to act as the image sensor component on movement without connection with lens, and thus it is applicable to each kind of lens set. The optimization on mechanism size and materials are next conducted via Genetic Algorithm (GA), in the purpose of maximizing the sensitivity of the driving VCM forces to net weight of moving parts of the designed mechanism. The mechanism is finally realized and proven efficient as predicted.

並列關鍵字

voice coil motors (VCMs) ； sensitivity. ； Anti-shake ； Genetic Algorithm (GA)

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