- 學位論文
具削邊磁鐵特徵之音圈馬達手機相機模組設計
Design of VCM Actuator with the cutting edge magnet for Cellphone Camera Modules
摘要
由於行動裝置持續的蓬勃發展，現在對於行動裝置的配備要求也是越來越高，而相機功能幾乎已成為了標準配備，且當今人手一台的智慧型手機市場更是不容小覷。隨著技術不斷的進步，手機相機的自動對焦功能已不在話下，而廠商更進一步的推出光學防手震功能，作為高階手機的區別。且目前智慧型手機幾乎都具備了前後雙鏡頭，如此的市場必然商機無限。 而光學防手震之技術與市場卻被日本所壟斷，故本論文透過拆解日系大廠之手機相機模組產品，做完整之逆向工程以了解市售產品之實際規格與標準。並針對具備自對焦功能與光學防手震功能之手機相機模組，做創新且具有專利性的磁路結構設計，提出一款具削邊磁鐵特徵之音圏馬達手機相機模組，透過磁鐵的形狀特徵並搭配充磁方向，達到磁力集中的效益；且將光學防手震之線圈配置於模組側邊，則使兩側光學防手震之線圈的作用力，產生相互補償的效果，使整體之光學防手震之音圈力達到線性均勻。 本論文除了做模組結構之模擬分析外，也透過製做金屬雛型品，針對光學防手震模組進行實驗驗證，證實光學防手震模組之性能，且其能夠達到市售產品規格之標準，展現設計模組之競爭力及可行性。
並列摘要
Along with the booming development of the mobile devices, the equipment of mobile devices become more and more important, as a result, each mobile phone has the camera feature. Thus everyone has mobile phone, cause the growing smartphone market. With the advance of science and technology, the auto-focus (AF) function of a mobile phone camera module has been very popular. Therefore, manufacturers of smartphone has started launching the “optical image stabilization” (OIS) function as the difference between high-end phones. Currently almost all smartphones has the dual lenses, making substantial opportunities of the related market. Because that the technology of OIS was monopolized by Japan, this research has completed reverse engineering of mobile phone camera module, which is made by Japanese manufacturer, in order to understand the actual specifications and standards of commercial products. For the mobile phone’s camera modules which have AF and OIS function, an innovative magnetic circuit structure design was proposed in this thesis. This thesis proposed a voice coil motor phone camera module with the feature of a magnet with cutting edge. We coordinated the shape features of magnet and the direction of magnetization to produce magnetic concentration benefits. The coil configuration has been setup by the side of the module, that both sides of the coil force can have an effect of mutual compensation, finally making the result of voice coil force quite linear. Apart from simulation analysis for the structural design of the module, this thesis also conducted the experimental verification by using a metal prototype. The experimental results showed that performance of the proposed camera module can reach standards of commercially available product specifications.