200935876 . 九、發明說明： 【發明所屬之技術領域】 本發明涉及成像領域，尤其涉及—種用 置的相機模組。 礴式電子衣 【先前技術】 =前’移動電話向著整合多功能性發展 顯，除了具備普通的诵 另题术越月 ❹ 摄草μ μ 力此外，還加人了影音播放以及拍 攝等功肖b ’尤其具有拍攝功能 费去㈣Y… 攝力月匕之移動電話一經推出即倍受消 限制，、因此目魏的設料致移動電話的體積受到 植均係ml讀具有拍攝魏的移動電話内的相機模 拍=:=成1=::模組對成像尤其係近處 動電話相機的拍攝如此將大大影響移 署^女“ 免計出適用於便攜式電子裝 置的具有自動對焦功能的相機握 【發明内容】 b的相機拉組成為急需解決的問題。 ^於此’本發明提供—種適用於便攜式電子裝置的具 有自動對焦功能的相機模組。 -種相機模組’其包括—個電路板、一個影像感測器、 以及一個鏡襲組。所錢頭模組包括-個第-光學透鏡及 Γ個微致動器。所述微致動器包括一個固定部和-個移動 t所34移動部具有-個通孔，所述第―光學透鏡嵌設在所 =通孔内。所述固定部、所述移動部以及所述影像感測器均 〃、所述電路板電性連接。缝穿輯述鏡頭模組成像於所述 影像感測器上。 200935876 與先前技術相比，所述相機模組在給所述電路板通電 時，所述微致動器驅動嵌設在所述移動部内的第一光學透鏡 沿著相機模組巾⑽方向移動進行自動戦，讀該相機模 組適用於便攜式電子裝置且具有自動對焦功能。 【實施方式】 下面將結合附圖，對本發明作進一步的詳細說明。 請參閱圖1 ’為本發明提供的相機模組⑽，立包括— ❹ 個影像感測模組10’ 一個鏡頭模組14，以及一個電路板16。 所述影像感測模組10設於所述電路板16上並與其電性連 接。外界減經所述鏡頭餘丨4絲於所述影像感測模組 10上。 請參閱圖2 ’所述影像感測模組1〇包括一個影像感測器 102 ’ 一個基底104。所述影像感測器1 〇2設置於所述基底 104上，所述基底104設置於所述電路板16上且通過導線（圖 未示）或者焊錫（圖未示）使所述影像感測器102與所述電路 φ板16電性連接。 所述鏡頭模組14包括一個第四光學透鏡140, 一個第一 光學透鏡142 ’ 一個第二光學透鏡146 ’ 一個液態透鏡144， 一個第三光學透鏡148以及一個微致動器12。所述微致動器 12由矽晶片、鍺晶片或氧化辞等材料經RIE(活性離子蝕刻， Reactive Ion Etch)技術製成。所述微致動器12包括一個固定 部120、一個移動部122以及附著在所述固定部120上的粘 著材料124、126。所述移動部122具有一個通孔128，所述 第一光學透鏡142嵌設在所述通孔128内。所述固定部120 200935876 . 與所述移動部122均通過導線（圖未示）與所述電路板16電性 連接，當所述電路板16通上電流，所述固定部120與所述 移動部122之間產生電位差，由此所述固定部120與所述移 動部122之間產生一靜電力，所述靜電力驅動所述移動部 122沿著鏡頭模組1〇〇光轴〇〇’的方向移動。 依照成像時光線入射至鏡頭模組14的方向，所述第四 光學透鏡140，所述微致動器12，所述第二光學透鏡146， 所述液態透鏡144以及所述第三光學透鏡148依次排列。所 〇 述第二光學透鏡146通過陽極結合方式或者共晶結合方式與 所述第三光學透鏡148相接。所述液態透鏡144嵌設於所述 第二光學透鏡146與所述第三光學透鏡148之間。所述液態 透鏡144内部具有折射率不同的兩種液體，比如導電性水溶 液與不導電性油。所述液態透鏡144進行了疏水性處理，使 導電性水溶液形成穩定的曲面狀態，從而起到類似球狀曲率 的凸透鏡作用。所述液態透鏡144通過導線（圖未示）與所述 ❹電路板16電性連接。所述第三光學透鏡148通過粘著方式 與所述影像感測器102相接。所述第四光學透鏡wo以轴著 材料124與所述微致動器12相接，所述第二光學透鏡146 以钻者材料126與所述微致動器12相接。優選地，所述枯 著材料124、126為本丙環丁烯材料或者環氧負性光刻材料。 所述第四光學透鏡140，所述第一光學透鏡142，所述第二 光學透鏡146，所述液態透鏡144，所述第三光學透鏡148 以及所述影像感測器102共軸設置。 當所述電路板16通上電流，所述微致動器12啟動，所 200935876 . 述移動部122因為電位差產生的靜電力開始帶動嵌設在所述 、 通孔128内的第一光學透鏡142沿著鏡頭模組1〇〇光車由〇〇, 的方向移動，從而實現自動對焦動作。在所述電路板16通 上電流的同時，所述液態透鏡144也因為電位差的作用疏水 性發生改變，所述液態透鏡144的形狀也隨之改變。通過調 整電路板16的電流強度’所述液態透鏡144的曲率會發生 改變’比如從凸透鏡狀態調整到凹透鏡狀態，從而改變所述 〇鏡頭模組14的焦距’實現自動對焦’使所述鏡頭模組14成 像於所述影像感測器102上。可以理解’當所述電路板16 通上電流，可以係只有微致動器12被驅動帶動第一光學透 鏡142沿著鏡頭模組1〇〇光軸〇〇,的方向移動，從而實現自 動對焦動作。也可以係只有液態透鏡144曲率發生改變從而 改變所述鏡頭模組14的焦距，實現自動對焦。還可以係如 岫所述微致動器12啟動的同時液態透鏡144曲率發生改 變’共同動作實現自動對焦。 ❹ 本發明的相機模組100將第一光學透鏡142設置於所述 微致動器12的移動部122上，移動部122因為電位差產生 的靜電力帶動第一光學透鏡142沿著相機模組100光軸00, 方向移動，從而保證該相機模組1〇〇適用於便攜式電子裝置 且具有自動對焦功能。同時，本發明的相機模組100在鏡頭 模、’且14中敗設液態透鏡144，也可以實現自動對焦功能。另 外’所述相機模組1〇〇並不需要傳統的鏡筒，因而其結構更 加小型化。 綜上所述，本發明確已符合發明專利要件’爰依法提出 200935876 . 專利申請。惟，以上所述者僅為本發明之較佳實施方式，舉 ^ 凡熟悉本案技藝之人士，於援依本案發明精神所作之等效修 飾或變化，皆應包含於以下之申請專利範圍内。 【圖式簡單說明】 圖1為本發明相機模組的結構示意圖。 圖2為圖1中相機模組的結構分解圖。 【主要元件符號說明】 相機模組 100 影像感測模組 10 影像感測器 102 基底 104 微致動器 12 固定部 120 移動部 122 粘著材料 124 、 126 通孔 128 鏡頭模組 14 第四光學透鏡 140 第一光學透鏡 142 液態透鏡 144 第二光學透鏡 146 第三光學透鏡 148 電路板 16 11200935876. IX. INSTRUCTIONS: FIELD OF THE INVENTION The present invention relates to the field of imaging, and more particularly to a camera module for use.礴-style electronic clothing [previous technology] = the former 'mobile phone to develop integrated versatility, in addition to the ordinary 诵 诵 越 越 越 ❹ ❹ ❹ 摄 摄 摄 摄 μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ μ 此外 此外 此外 此外 此外 此外b 'especially with the shooting function fee to go to (four) Y... The mobile phone of the power of the moon is released as soon as it is released, so the volume of the mobile phone caused by the material of the eye is affected by the planting of the mobile phone. Camera Mold ===1 =:: Modules for imaging, especially for close-up mobile phone cameras, will greatly affect the transfer of the camera. "Without the camera grip with autofocus for portable electronic devices." SUMMARY OF THE INVENTION The camera pull of b is an urgent problem to be solved. [This invention provides a camera module with an autofocus function suitable for a portable electronic device. - A camera module that includes a circuit a plate, an image sensor, and a mirror group. The head module includes a first-optical lens and a micro-actuator. The micro-actuator includes a fixed portion and a movement t The moving portion has a through hole, and the first optical lens is embedded in the through hole. The fixing portion, the moving portion and the image sensor are evenly connected, and the circuit board is electrically connected. The stitching lens module is imaged on the image sensor. 200935876 Compared with the prior art, the camera module is embedded in the camera module when the circuit board is powered The first optical lens in the moving portion is automatically moved along the direction of the camera module towel (10), and the camera module is adapted to be used in a portable electronic device and has an autofocus function. [Embodiment] The present invention will be described below with reference to the accompanying drawings. For further details, please refer to FIG. 1 'the camera module (10) provided by the present invention, comprising: - one image sensing module 10', a lens module 14, and a circuit board 16. The image sensing mode The group 10 is disposed on the circuit board 16 and electrically connected to the circuit board 16. The external lens is reduced by the lens of the lens to the image sensing module 10. Referring to Figure 2, the image sensing module 1 〇 includes an image sensor 102 ' a substrate 104. The image sensor 1 〇 2 is disposed on the substrate 104. The substrate 104 is disposed on the circuit board 16 and is made by wires (not shown) or solder (not shown). The image sensor 102 is electrically connected to the circuit φ board 16. The lens module 14 includes a fourth optical lens 140, a first optical lens 142', a second optical lens 146', and a liquid lens 144. A third optical lens 148 and a microactuator 12. The microactuator 12 is fabricated by a RIE (Reactive Ion Etch) technique from a silicon wafer, a germanium wafer, or an oxidized material. The actuator 12 includes a fixing portion 120, a moving portion 122, and an adhesive material 124, 126 attached to the fixing portion 120. The moving portion 122 has a through hole 128, and the first optical lens 142 is embedded in the through hole 128. The fixing portion 120 200935876 . and the moving portion 122 are electrically connected to the circuit board 16 through wires (not shown), and when the circuit board 16 is connected with current, the fixing portion 120 and the moving portion A potential difference is generated between the portions 122, whereby an electrostatic force is generated between the fixing portion 120 and the moving portion 122, and the electrostatic force drives the moving portion 122 along the optical axis of the lens module 1 The direction of movement. The fourth optical lens 140, the microactuator 12, the second optical lens 146, the liquid lens 144, and the third optical lens 148 are in accordance with a direction in which light is incident on the lens module 14 during imaging. Arrange in order. The second optical lens 146 is in contact with the third optical lens 148 by an anodic bonding method or a eutectic bonding method. The liquid lens 144 is embedded between the second optical lens 146 and the third optical lens 148. The liquid lens 144 has two liquids having different refractive indices inside, such as a conductive aqueous solution and a non-conductive oil. The liquid lens 144 is subjected to a hydrophobic treatment to form a stable curved state of the conductive aqueous solution, thereby functioning as a convex lens having a spherical curvature. The liquid lens 144 is electrically connected to the cymbal circuit board 16 through a wire (not shown). The third optical lens 148 is coupled to the image sensor 102 by an adhesive means. The fourth optical lens wo is coupled to the microactuator 12 by a shafting material 124 that interfaces with the microactuator 12 as a drill material 126. Preferably, the dry material 124, 126 is a propylenecyclobutene material or an epoxy negative lithographic material. The fourth optical lens 140, the first optical lens 142, the second optical lens 146, the liquid lens 144, the third optical lens 148, and the image sensor 102 are disposed coaxially. When the circuit board 16 is energized, the microactuator 12 is activated, and the moving portion 122 starts to drive the first optical lens 142 embedded in the through hole 128 due to the electrostatic force generated by the potential difference. Along the lens module 1, the Twilight car moves in the direction of 〇〇, thereby achieving an autofocus action. While the current is applied to the circuit board 16, the liquid lens 144 also changes in hydrophobicity due to the potential difference, and the shape of the liquid lens 144 also changes. By adjusting the current intensity of the circuit board 16, the curvature of the liquid lens 144 may change, such as adjusting from the state of the convex lens to the state of the concave lens, thereby changing the focal length of the lens module 14 to achieve autofocusing. Group 14 is imaged on image sensor 102. It can be understood that when the current is applied to the circuit board 16, only the micro-actuator 12 can be driven to move the first optical lens 142 along the optical axis of the lens module 1. action. It is also possible that only the curvature of the liquid lens 144 is changed to change the focal length of the lens module 14 to achieve autofocus. It is also possible to achieve autofocus by co-acting the change of the curvature of the liquid lens 144 while the microactuator 12 is activated. The camera module 100 of the present invention places the first optical lens 142 on the moving portion 122 of the microactuator 12, and the moving portion 122 drives the first optical lens 142 along the camera module 100 due to the electrostatic force generated by the potential difference. The optical axis 00 moves in the direction, thereby ensuring that the camera module 1 is suitable for portable electronic devices and has an autofocus function. At the same time, the camera module 100 of the present invention can defeat the liquid lens 144 in the lens mode, and the autofocus function can also be realized. In addition, the camera module 1 does not require a conventional lens barrel, and thus its structure is further miniaturized. In summary, the present invention has indeed met the requirements of the invention patent 爰 提出 2009. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a camera module of the present invention. 2 is an exploded view of the camera module of FIG. 1. [Main component symbol description] Camera module 100 Image sensing module 10 Image sensor 102 Base 104 Microactuator 12 Fixing portion 120 Moving portion 122 Adhesive material 124, 126 Through hole 128 Lens module 14 Fourth optical Lens 140 first optical lens 142 liquid lens 144 second optical lens 146 third optical lens 148 circuit board 16 11