M318736 ，八、新型說明： 【新型所屬之技術領域】 本創作係為一種八角形微型鏡頭對焦結構，特別是關於— 種以電磁驅動之方式帶動鏡頭移動而達成對焦功能之微型對 焦結構。 【先前技術】 ❿ 由於科技的進步，使得數位相機的體積縮的相當地小，而 目前的行動電話亦大都建置有數位相機的功能，這些都歸功於 攝像鏡頭的模組化及微型化，而在微型鏡頭内有許多種類的自 動對焦驅動結構，目前最普遍被使用的是音圈馬達(VCM)，因 其具有體積小、用電量少、致動位移精確及價格低廉等優點， 適合作為微型鏡頭自動對焦的短距驅動。 如圖一所示，在一般的對焦裝置10中，主要是由包括—鏡 頭組11、以及一光感測元件12所組成，該鏡頭組丨丨可將被攝= %件之反射影像光成像於光感測元件12上；如果鏡頭組η與光减 ~ ’則元件12間的距離係為固定（亦即定焦鏡頭），則其僅能清晰 呈現2-3公尺以外距離（Hyper focal Distance)的物件；若欲擁 有近拍功能，則必須利用一額外的鏡頭對焦裝置來帶動鏡頭組 位移，以改變鏡頭組與光感測元件之間的距離，達到隹 (Focus)之目的。 “、、 夕而當鏡頭組具有光學變焦（zoom)功能時，鏡頭組内部 之多組鏡群之間亦必須配合變焦倍率的改變，來產生相對應之 位移，此時，所述之鏡群位移亦需將對焦裝置設計於鏡頭^組 之中。 M318736 習知對焦機構設計’其移動鏡頭組的機構設計採用「手 動方式」為主’❹上财錢；本_將針對上述之缺點進 订改善’將鏡頭之對焦方式由手動改為電磁驅動，同時簡化機 構之設計，降低生產成本且改良㈣製程，缝將此微型對隹 結構用於手機、筆記型電腦、PDA···等產品之照相模組上。 【新型内容】 本:IH乍之目的疋在k供一種以電磁驅動之方式帶動鏡頭 移動而達成對焦功此’且具有體積小、鏡頭大等優點之微型對 焦結構。 為達到上述之目的，本創作之八角形微型鏡頭對焦結構包 :承載座，供承載—鏡頭；至少—線圈元件，包覆於承載座 =外圍Y至少一彈性元件，連結承載座及線圈元件；以及至少 磁陸元件’當通電後，電流藉由彈性元件傳導至線圈元件 該線圈70件與磁性元件之間產生作用力而使承載座產生位 移，達到自動對焦之功能。 【實施方式】 為I使貴審查委員能更進一步瞭解本創作為達成預定 =、所知取之技術、手段及功效，請參閱以下有關本創作之詳 :二明與附圖，相信本創作之目的、特徵與特點，當可由此得 冰入且具體之瞭解，然而所附圖式僅提供參考與說明用，並 非用來對本創作加以限制者。 20、=圖=所示’一種八角形微型鏡頭對焦結構包括一承載座 上蓋60、至少一彈性元件50、四磁性元件40、一線圈元 M318736 •件30、一框架7〇及一感光元件80。 該承載座20供承載一鏡頭21，該鏡頭21具有一軸向22,其 為鏡頭21用以聚光之軸心方向；該承載座2〇為一中空環狀結構 且於軸向22具有一貫穿孔23，於貫穿孔23與鏡頭21之間具有可 對應鎖合之螺牙結構24，以便將鏡頭21鎖固於貫穿孔23中。 該框架70為一中空結構且於轴向22投影之内緣輪廓對應 於承載座20之外緣輪廓，當承載座20容納於框架7〇時，兩者之 内、外輪廓的配合構成線性導引機構，使得承載座2〇僅 f架70内進行線性位移而無法旋轉。 如圖三所示，該線圈元件3〇包覆於承載座20之外圍，且並 呈八邊形，當鏡頭21旋轉安裝於貫穿孔23時，因會產生扭力/、， 故八邊形之線圈元件30可限制鏡頭21旋轉安裝之角度，避免過 大之扭力破壞承載座20之内部結構。 圖ΐ、四所示，該磁性元件4G係屬永久磁鐵，位於線圈 二吉π卜_其*四個邊緣且間距相同，使鏡頭21可以達到 屬材質，^Ϊ 罩該料41呈人邊形，係屬金 止磁力外漏。磁場，使内部磁場更強、效率更好，且防 51連結承載細及上^ 下平板彈箐52，該上平板彈簧 架m平板彈\==^=5菁352連:承載座20及框 :處該圓孔54位於中心且二= 20，該固定處μ办认' * 用以固疋承載座 M318736 吸收衝擊、振動、落下的X、Y、Z方向之受力並使受力平均， 使上平板彈箐51不易產生形變。 如圖六所示，該承載座20另具有一凸部25，支撐於框架7〇 底面，使下平板彈簧52彎曲而產生一向下之力，當承載座2〇不 論是朝上放置、朝下放置或水平放置，其都會被向下之力固定 住，使其在任何方向之初始位置都不會晃動、位移。 使用時，該線圈元件30及磁性元件4〇驅動承載座2〇於框架 70内進行沿軸向22之前、後方向的線性位移運動，將電流藉由 下平板彈簀52傳導至線圈元件30 ,使線圈元件30產生磁場而具 有推力，與磁性元件40 —同驅動承載座20產生位移，將承載座 20與鏡頭21固定在對焦位置上而完成對焦動作。該線圈元件3〇 所提供之推力方向與磁性元件40之推力方向相同，也就是實質 上提供了幾乎等同於兩倍之推力，大幅提高電磁驅動承載座2〇 之效能。 知上所述，八邊形之線圈元件3〇之設計，可避免過大之扭 力破壞承載座20之内部結構；該磁性元件4〇之設置，使達到外 型體積小但鏡頭21大之效果；該外罩41之設計，使内部磁場更 強、效率更好且防止磁力外漏；該蛇狀處55之設計，使上平板 彈簧51不易產生形變；該凸部25之設計，使承載座2〇在任何方 向之初始位置都不會晃動、位移；本創作以電磁驅動之方式帶 動承載座20與鏡頭21移動而達成對焦功能，且具有驅動效能 佳、體積小、鏡頭大及製造成本低等優點。 職是，本創作確能藉上述所揭露之技術，提供一種迥然不 同於習知者的設計，堪能提高整體之使用價值，又其申請前未 見於刊物或公開使用，誠已符合新型專利之要件，爰依法提出 新型專利申請。 M318736 惟，上述所揭露之圖式、說明，僅為本創作之實施例而已， 凡精于此項技藝者當可依據上述之說明作其他種種之改良，而 這些改變仍屬於本創作之發明精神及以下所界定之專利範圍 中〇 M318736 【圖式簡單說明】 圖一為習知鏡頭對焦原理之示意圖； 圖二為本創作八角形微型鏡頭對焦結構之立體分解圖； 圖三為本創作八角形微型鏡頭對焦結構之前視示意圖； 圖四為本創作八角形微型鏡頭對焦結構之磁性元件之立 體圖； 圖五為本創作八角形微型鏡頭對焦結構之彈性元件之前 視圖， 圖六為本創作八角形微型鏡頭對焦結構之剖面圖。 【主要元件符號說明】 10 攝影裝置 11 鏡頭組 12 光感測元件 20 承載座 21 鏡頭 22 轴向 23 貫穿孔 24 螺牙結構 25 凸部 30 線圈元件 40 磁性元件 41 外罩 50 彈性元件 51 上平板彈簧 M318736 52 下平板彈簧 53 固定處 54 圓孔 55 蛇狀處 60 上蓋 70 框架 80 感光元件M318736, eight, new description: [New technology field] This creation is an octagonal micro lens focusing structure, especially for the micro-focus structure that uses the electromagnetic drive to drive the lens to achieve the focusing function. [Prior Art] ❿ Due to advances in technology, the size of digital cameras has been reduced considerably, and most of the current mobile phones have digital camera functions, which are attributed to the modularization and miniaturization of camera lenses. There are many types of autofocus drive structures in miniature lenses. Currently, the most commonly used voice coil motor (VCM) is because of its small size, low power consumption, accurate actuation displacement and low price. As a short-range drive for micro lens autofocus. As shown in FIG. 1 , in the general focusing device 10, it mainly consists of a lens assembly 11 and a light sensing component 12, which can image the reflected image of the captured component. On the light sensing element 12; if the lens group η and the light minus ~ 'the distance between the elements 12 is fixed (ie, a fixed focus lens), then it can only clearly show a distance of 2-3 meters (Hyper focal Distance); if you want to have a close-up function, you must use an additional lens focusing device to drive the lens group displacement to change the distance between the lens group and the light sensing element for the purpose of Focus. ",, and when the lens group has an optical zoom function, the plurality of groups of mirrors inside the lens group must also match the zoom magnification to generate a corresponding displacement. At this time, the mirror group The displacement also needs to design the focusing device in the lens group. M318736 The conventional focusing mechanism design 'the structure of the moving lens group adopts the "manual mode" as the main 'selling money; this _ will be ordered for the above shortcomings Improve 'focusing the lens from manual to electromagnetic drive, simplifying the design of the mechanism, reducing production costs and improving (4) process, sewing this miniature confrontation structure for mobile phones, notebook computers, PDAs, etc. On the camera module. [New content] This: The purpose of IH乍 is to provide a micro-focus structure that has the advantages of small size and large lens, which is used to drive the lens to move by electromagnetic drive. In order to achieve the above purpose, the octagonal micro lens focusing structure package of the present invention: a carrier for bearing-lens; at least - a coil component, covering the carrier = peripheral Y, at least one elastic component, connecting the carrier and the coil component; And at least the magnetic land element 'when energized, the current is transmitted to the coil element by the elastic element, and the force is generated between the coil 70 and the magnetic element to displace the carrier to achieve the function of autofocus. [Implementation] I will enable your review board to further understand the creation of the technology, the means and the efficacy of the creation, please refer to the following details about the creation: two Ming and the drawings, I believe this creation The purpose, features, and characteristics of the present invention are to be understood as being limited and not limited by the present invention. 20, = Fig. = 'An octagonal micro lens focusing structure includes a carrier upper cover 60, at least one elastic member 50, four magnetic members 40, a coil element M318736, a member 30, a frame 7A, and a photosensitive member 80. . The carrier 20 is configured to carry a lens 21, and the lens 21 has an axial direction 22, which is an axial direction of the lens 21 for collecting light; the carrier 2 is a hollow annular structure and has a consistent axial direction 22 The through hole 23 has a threaded structure 24 corresponding to the lock between the through hole 23 and the lens 21 to lock the lens 21 in the through hole 23. The frame 70 is a hollow structure and the inner edge contour projected in the axial direction 22 corresponds to the outer edge contour of the carrier 20. When the carrier 20 is received in the frame 7〇, the inner and outer contours of the two constitute a linear guide. The guiding mechanism causes the carrier 2 to be linearly displaced within the frame 70 and cannot be rotated. As shown in FIG. 3, the coil component 3 is wrapped around the periphery of the carrier 20 and has an octagonal shape. When the lens 21 is rotatably mounted on the through hole 23, a torsion force is generated, so that the octagon is formed. The coil element 30 can limit the angle at which the lens 21 is rotatably mounted, avoiding excessive torque to damage the internal structure of the carrier 20. As shown in Fig. 4 and Fig. 4, the magnetic element 4G is a permanent magnet, which is located at the four edges of the coil and has the same pitch, so that the lens 21 can reach the genus material, and the cover 41 is a humanoid shape. , is a gold stop magnetic leakage. The magnetic field makes the internal magnetic field stronger and more efficient, and the anti-51 joint carries the fine and upper and lower plate magazines 52. The upper plate spring frame m plate bombs \==^=5 cyanine 352: the carrier 20 and the frame : The circular hole 54 is located at the center and the second is 20, and the fixed portion is recognized as '* for fixing the bearing M318736 to absorb the impact, vibration, falling force in the X, Y, Z direction and to average the force. The upper plate magazine 51 is less susceptible to deformation. As shown in FIG. 6, the carrier 20 further has a convex portion 25 supported on the bottom surface of the frame 7 to bend the lower flat spring 52 to generate a downward force when the carrier 2 is placed upward or downward. Placed or placed horizontally, it will be fixed by the downward force so that it will not shake or shift at the initial position in any direction. In use, the coil element 30 and the magnetic element 4 drive the carrier 2 to perform linear displacement movement in the front and rear directions of the axial direction 22 in the frame 70, and conduct current to the coil element 30 through the lower plate magazine 52. The coil element 30 is caused to generate a magnetic field and has a thrust force. The magnetic element 40 is displaced from the drive carrier 20, and the carrier 20 and the lens 21 are fixed at the in-focus position to complete the focusing operation. The coil element 3 is provided with the same thrust direction as the thrust direction of the magnetic element 40, that is, substantially equivalent to twice the thrust, substantially improving the performance of the electromagnetic drive carrier 2 . As described above, the design of the octagonal coil element 3〇 can avoid excessive torque to damage the internal structure of the bearing base 20; the magnetic element 4〇 is arranged to achieve a small outer volume but a large lens 21 effect; The outer cover 41 is designed to make the internal magnetic field stronger, more efficient, and prevent magnetic leakage; the serpentine 55 is designed to make the upper flat spring 51 less susceptible to deformation; the convex portion 25 is designed to make the carrier 2 The initial position in any direction will not be shaken or displaced; this creation drives the carrier 20 and the lens 21 to move to achieve the focusing function by electromagnetic driving, and has the advantages of good driving efficiency, small size, large lens and low manufacturing cost. . The job is to create a design that is different from the well-known ones by the above-mentioned techniques, which can improve the overall use value, and it has not been seen in the publication or public use before the application, and has already met the requirements of the new patent. , 提出 file a new type of patent application. M318736 However, the above-mentioned drawings and descriptions are only examples of the present invention, and those skilled in the art can make other improvements according to the above description, and these changes still belong to the inventive spirit of the present invention. And the patent scope defined below 〇M318736 [Simple description of the figure] Figure 1 is a schematic diagram of the conventional lens focusing principle; Figure 2 is an exploded perspective view of the octagonal micro lens focusing structure; Figure 3 is the creation of the octagonal shape The front view of the miniature lens focusing structure; Figure 4 is a perspective view of the magnetic component of the octagonal micro lens focusing structure; Figure 5 is a front view of the elastic component of the octagonal micro lens focusing structure, Fig. 6 is the octagonal miniature of the creation A cross-sectional view of the lens focusing structure. [Main component symbol description] 10 Photographic device 11 Lens group 12 Light sensing element 20 Carrier 21 Lens 22 Axial 23 Through hole 24 Screw structure 25 Projection 30 Coil element 40 Magnetic element 41 Cover 50 Elastic element 51 Upper flat spring M318736 52 Lower plate spring 53 Fixing point 54 Round hole 55 Snake 60 Upper cover 70 Frame 80 Photosensitive element