音圈馬達之手機相機光學變焦模組設計;

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Please use this identifier to cite or link to this item: http://ccur.lib.ccu.edu.tw/handle/A095B0000Q/100

Title:	音圈馬達之手機相機光學變焦模組設計
Authors:	胡誠齊
Contributors:	機械工程系研究所
Keywords:	手機相機模組;致動器;音圈馬達;光學變焦模組;稜鏡
Date:	2017
Issue Date:	2019-05-23 12:52:31 (UTC+8)
Publisher:	機械工程系研究所
Abstract:	輕便又多功能的智慧型手機近年改變了人類的生活習慣，諸多功能的智慧型手機同時亦取代多樣電子產品，數位相機便是其中之一。隨著手機相機模組技術不斷的進步，已逐漸取代數位相機，相較於傳統相機的三大功能：自動對焦、光學防手震以及光學變焦，手機相機的模組已具備有自動對焦，光學防手震也越趨成熟，然而在變焦方面，受到智慧型手機的外型體積等許多條件限制，發展變得困難，因此多採用數位變焦的方式，然而若要達到影像的放大縮小而不失真，則需要光學變焦。　　目前市面上少數幾款具有光學變焦效果的智慧型手機，搭配的微致動器較多採用步進馬達，ASUS近期推出具備三倍光學變焦的手機相機，搭配的是HOYA公司的CUBE模組備受關注，因此本論文將透過逆向工程研究搭載在其智慧型手機上的相機模組，以利了解手機相機模組之特性與規格，並且搭配閱讀其他文獻與專利後，提出一款使用音圈馬達驅動的光學變焦模組。而本論文利用稜鏡的反射改變光行徑的路線，藉此在有限的空間中達到拉長行程的效果，並且搭配閉迴路的控制，分別控制兩側的音圈馬達，達到變焦的效果。而在模擬與完整模組之設計後，本論文透過製作金屬雛形品進行實驗，以驗證搭配音圈馬達之手機相機模組的性能。亦將實驗結果與模擬進行比較，以證明長行程光學變焦特徵之音圈馬達手機相機模組設計能與模擬匹配，並且符合市售產品要求。 In recent years lightweight and multifunction smartphones have changed the way that people live. It also replaced multi-electronic products, and digital camera is one of them. As cell phone camera module technology has been improved continuously, the digital camera has been gradually replaced by the cell phone. Comparing to the three major functions of the traditional camera: auto-focus (AF), optical image stabilization (OIS) and optical zoom, mobile phone camera module has been equipped maturely in terms of AF and OIS. However, in the aspect of optical zoom, restricted by the appearance and volume of smart phones or any other conditions, the development of optical zoom becomes more difficult so that most of the cell phones equipped with digital zooming. To achieve the image zooming without distortion, technology of optical zoom is needed.Currently there are few smartphones with optical zoom which are driven by stepper motors in the market. Recently, ASUS presented a novel smartphone ASUS Zoom ZX551ML, which equipped with triple optical zoom by HOYA's CUBE module catches more consumers’ attention. According to the observation, this thesis aims to get more information and specification through the reverse engineering of this camera module. In order to propose a novel optical zoom module driven by voice coil motors, further studying relative references and patents was needed. To achieve the effect of elongated stroke in a limited space, the new camera module used prism reflection to change the path of light and drive two voice coil motors on both sides with closed-loop control. After designing the complete module, this thesis evaluated its performance using a laboratory-built prototype which is matched to the simulation. The simulation and experimental results showed that the proposed camera module is satisfied with the requirements of the commercial products.
Appears in Collections:	[機械工程學系] 學位論文

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