201027222 .六、發明說明： • 【發明所屬之技術領域】 、 本發明涉及一種鏡座、其製造方法及具有該鏡座之 . 相機模組。 【先前技術】 照相功能已經成為各種便攜式電子產品例如手機 及個人數位助理（PDA)不可或缺之主要功能之一。相機 模組通常包括至少一個鏡頭模組，以及一個與鏡頭模組 β 相對設置之影像感測器元件。鏡頭模組通常包括鏡座、 設置於鏡座之鏡筒、以及沿光軸方向依次固定於鏡筒内 之透鏡組、間隔環與濾光片等光學元件。而影像感測器 元件通常封裝於鏡座内，與鏡頭模組配合用於成像。 然，現有之鏡頭模組之鏡座之材料為塑膠如 PC/ABS (聚丙烯/丙烯腈-丁二烯-苯乙烯）工程塑料、 聚四氟乙烯等，通常不具備良好之抗電磁波干擾能力， 影像感測器元件容易受到外界電磁波之干擾而產生雜 ❹ 訊’該電磁波之干擾可通過如Zhenguang Liang等人於 2006年1〇月SPIE系統檢測儀錶與控制技術第六次國際 研討會（Sixth International Symposium on Instrumentation and Control Technology)上發表之論文 Radiated electromagnetic interference (EMI) measuring system中揭示之電磁干擾測量系統測得。該電磁波之干 擾導致無法獲得清晰之圖像，造成成像品質不佳。當成 像解析度較高時，外界電磁波對影像感測器元件干擾所 201027222 ♦ * 造成之對成像品質之影響就更為明顯。 ' 目前，可通過鍍膜之方法於鏡座之外表面形成一層 - 銅/不銹鋼抗電磁干擾塗層來降低電磁波對與鏡頭模組 . 相配合之影像感測器元件之干擾，但此種方法需要昂貴 之鍍膜設備與真空系統。 【發明内容】 有鑑於此，有必要提供一種成本較低之鏡座、其製 造方法及相機模組。 ® —種鏡座，該鏡座之材料為主要由奈米碳管、碳黑 及聚合物組成之具有抗電磁干擾功能之複合材料，該奈 米碳管與該碳黑分散於該聚合物中。 一種上述鏡座之製造方法，其包括以下步驟：製備 包含奈米碳管與碳黑之混合物；將該包含有奈米碳管與 碳黑之混合物與聚合物通過加熱混合而使奈米碳管及 碳黑分散於該聚合物中，得到主要由奈米碳管、碳黑及 聚合物組成之具有抗電磁干擾功能之複合材料；以該複 合材料為原料，採用注射成型法得到該鏡座。 一種相機模組，其包括：至少一鏡片；一收容該至 少一鏡片之鏡筒；一鏡座；及一影像感測模組，該影像 感測模組設置於鏡座相對於鏡筒之另外一侧，該鏡座之 材料為主要由奈米碳管、碳黑及聚合物組成之具有抗電 磁干擾功能之複合材料，該奈米碳管與該碳黑分散於該 聚合物中。 相較於先前技術，該相機模組之鏡座由具有良好之 201027222 ‘ 抗電磁波干擾能力之奈米碳管、碳黑及聚合物複合材料 ' 通過注塑成型法形成，可省去使用昂貴之鍍膜設備與真 、 空系統之步驟，成本較低。 . 【實施方式】 下面將結合附圖，對本發明實施例作進一步之詳細 說明。 請參閱圖1與圖2，其為本發明實施例提供之一種 相機模組100。該相機模組100包括若干鏡片40，一收 ❿容該若干鏡片40之鏡筒10，鏡座20，及一影像感測模 組50。其中，該鏡筒10、鏡座20、及若干鏡片40構成 一鏡頭模組。 該鏡筒10之外壁設置有外螺紋。該鏡座20包括一 圓筒形部位202以及一與該圓筒形部位202相貫通之方 框形部位204。該圓筒形部位202内壁設置有可與該鏡 筒10之外螺紋相嚙合之内螺紋。 該影像感測模組50包括一影像感測器502以及一 電路板504。該影像感測器502可為電荷耦合器件 (Charge Coupled Device，簡稱CCD)或互補金屬氧化 物半導體電晶體（Complementary Metal Oxide Semiconductor Transistor，簡稱 CMOS )。該影像感測器 502封裝於該電路板504上，並設置於該鏡座20之方框 形部位204内。 該影像感測模組50設置於鏡座20相對於鏡筒10 之另外一側。該影像感測模組50設置於鏡座20中，即 201027222 • 設置於鏡座20之方框形部位204處。該影像感測器502 ' 可為電荷耦合元件（Charge Coupled Device，CCD)或者 、 互補金屬氧化物半導體元件（Complementary Metal -Oxide Semiconductor，CMOS )。 該鏡座20之材料為主要由奈米碳管208、碳黑207 及聚合物206組成之複合材料，該奈米碳管208與該碳 黑207分散於該聚合物206中，該奈米碳管208占該聚 合物206之重量百分比為1.0%-15%，該碳黑207占該 ® 聚合物206之重量百分比為1·0%-10%。該聚合物206 材料為聚碳酸酯（Polycarbonate)、聚碳酸酯/丙稀腈-丁 二晞-苯乙稀（polycarbonate/Acrylonitrile Butadiene Styrene，PC/ABS )、聚碳酸酯/玻璃纖維 (Polycarbonate/Glass fiber )、聚鄰苯二甲醯胺 (Polyphthalamide，PPA)、或聚苯釀（Polyphenylene oxide，PPO)。奈米碳管208可為單壁奈米碳管或多壁 φ奈米碳管。 上述鏡座可採用以下方法製造： 步驟一，採用電弧放電（Arc-Discharge )方法製備 包含奈米碳管208與碳黑207之混合物。 步驟二，將該包含有奈米碳管208與碳黑207之混 合物與聚合物206通過加熱混合而使奈米碳管208及碳 黑207分散於該聚合物206中，得到主要由奈米碳管 208、碳黑207及聚合物206組成之具有抗電磁干擾功 能複合材料。 6 201027222 ‘ 步驟三，以該複合材料為原料，採用注射成型法得 到該鏡座20。 、 相較於先前技術，該相機模組100之鏡座20由具 - 有良好之抗電磁波干擾能力之奈米碳管、碳黑及聚合物 複合材料通過注塑成型法形成，可省去使用昂貴之鍍膜 設備與真空系統之步驟，成本較低。 綜上所述，本發明確已符合發明專利之要件，遂依 法提出專利申請。惟，以上所述者僅為本發明之較佳實 ® 施方式，自不能以此限制本案之申請專利範圍。舉凡熟 悉本案技藝之人士援依本發明之精神所作之等效修飾 或變化，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明實施例提供之相機模組之剖視圖。 圖2係圖1之局部放大圖。 【主要元件符號說明】 鏡筒 10 相機模組 100 鏡片 40 鏡座 20 影像感測模組 50 圓筒形部位 202 方框形部位 204 影像感測器 502 電路板 504 201027222 奈米碳管 208 碳黑 207 聚合物 206201027222. 6. Description of the Invention: • The technical field to which the invention pertains relates to a lens holder, a method of manufacturing the same, and a camera module having the same. [Prior Art] Camera functions have become one of the main functions that are indispensable for various portable electronic products such as mobile phones and personal digital assistants (PDAs). The camera module typically includes at least one lens module and an image sensor element disposed opposite the lens module β. The lens module generally includes a lens holder, a lens barrel disposed on the lens holder, and an optical element such as a lens group, a spacer ring, and a filter which are sequentially fixed in the lens barrel in the optical axis direction. The image sensor components are typically packaged in a lens mount for use with the lens module for imaging. However, the lens holder of the existing lens module is made of plastic such as PC/ABS (polypropylene/acrylonitrile-butadiene-styrene) engineering plastic, polytetrafluoroethylene, etc., and usually does not have good resistance to electromagnetic interference. The image sensor component is easily interfered by external electromagnetic waves and generates noise. The interference of the electromagnetic wave can be passed through the sixth international seminar on instrumentation and control technology of the SPIE system in the first month of 2006, such as Zhenguang Liang et al. International Symposium on Instrumentation and Control Technology, published in the paper on the Radiated electromagnetic interference (EMI) measuring system. The interference of the electromagnetic wave causes a clear image to be obtained, resulting in poor image quality. When the image resolution is high, external electromagnetic waves interfere with the image sensor components. 201027222 ♦ * The impact on imaging quality is more obvious. ' At present, a layer of copper-stainless steel anti-electromagnetic interference coating can be formed on the outer surface of the lens holder by coating method to reduce the interference between the electromagnetic wave pair and the lens sensor component. However, this method requires Expensive coating equipment and vacuum system. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a lens holder having a lower cost, a manufacturing method thereof, and a camera module. ® - a lens holder whose material is a composite material mainly composed of a carbon nanotube, carbon black and a polymer having electromagnetic interference resistance, and the carbon nanotube and the carbon black are dispersed in the polymer. A manufacturing method of the above lens holder, comprising the steps of: preparing a mixture comprising a carbon nanotube and a carbon black; and mixing the mixture comprising the carbon nanotube and the carbon black with the polymer to heat the carbon nanotube And the carbon black is dispersed in the polymer to obtain a composite material having an anti-electromagnetic interference function mainly composed of a carbon nanotube, a carbon black and a polymer; and the composite material is used as a raw material, and the lens holder is obtained by an injection molding method. A camera module includes: at least one lens; a lens barrel housing the at least one lens; a lens holder; and an image sensing module disposed on the lens holder opposite to the lens barrel On one side, the material of the mirror holder is a composite material mainly composed of a carbon nanotube, carbon black and a polymer having electromagnetic interference resistance, and the carbon nanotube and the carbon black are dispersed in the polymer. Compared with the prior art, the lens holder of the camera module is formed by injection molding using a good carbon nanotube, carbon black and polymer composite with good electromagnetic interference resistance of 201027222, eliminating the need for expensive coating. The cost of the equipment and the real and empty system is lower. [Embodiment] Hereinafter, embodiments of the present invention will be further described in detail with reference to the accompanying drawings. Referring to FIG. 1 and FIG. 2, a camera module 100 according to an embodiment of the present invention is provided. The camera module 100 includes a plurality of lenses 40, a lens barrel 10 for receiving the plurality of lenses 40, a lens holder 20, and an image sensing module 50. The lens barrel 10, the lens holder 20, and the plurality of lenses 40 constitute a lens module. The outer wall of the lens barrel 10 is provided with an external thread. The lens holder 20 includes a cylindrical portion 202 and a frame-shaped portion 204 that penetrates the cylindrical portion 202. The inner wall of the cylindrical portion 202 is provided with internal threads that are engageable with the external threads of the lens barrel 10. The image sensing module 50 includes an image sensor 502 and a circuit board 504. The image sensor 502 can be a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor Transistor (CMOS). The image sensor 502 is packaged on the circuit board 504 and disposed in the frame portion 204 of the lens holder 20. The image sensing module 50 is disposed on the other side of the lens holder 20 relative to the lens barrel 10. The image sensing module 50 is disposed in the lens holder 20, that is, 201027222. • is disposed at the square portion 204 of the lens holder 20. The image sensor 502' may be a Charge Coupled Device (CCD) or a Complementary Metal-Oxide Semiconductor (CMOS). The material of the lens holder 20 is a composite material mainly composed of a carbon nanotube 208, a carbon black 207 and a polymer 206, and the carbon nanotube 208 and the carbon black 207 are dispersed in the polymer 206, the carbon nanotube 208% by weight of the polymer 206 is from 1.0% to 15%, and the carbon black 207 is from 1.0% to 10% by weight of the ® polymer 206. The polymer 206 material is Polycarbonate, Polycarbonate/Acrylonitrile Butadiene Styrene (PC/ABS), Polycarbonate/Glass fiber. , polyphthalamide (PPA), or polyphenylene oxide (PPO). The carbon nanotube 208 can be a single-walled carbon nanotube or a multi-walled φ carbon nanotube. The above lens holder can be manufactured by the following method: Step one, a mixture comprising a carbon nanotube 208 and a carbon black 207 is prepared by an arc discharge method. In step two, the mixture comprising the carbon nanotube 208 and the carbon black 207 and the polymer 206 are mixed by heating to disperse the carbon nanotube 208 and the carbon black 207 in the polymer 206, thereby obtaining a carbon nanotube mainly. 208, carbon black 207 and polymer 206 are composite materials with anti-electromagnetic interference function. 6 201027222 ‘Step 3, using the composite material as a raw material, the lens holder 20 is obtained by injection molding. Compared with the prior art, the lens holder 20 of the camera module 100 is formed by injection molding using a carbon nanotube, a carbon black and a polymer composite material having good anti-electromagnetic interference capability, thereby eliminating the need for expensive use. The steps of the coating equipment and the vacuum system are relatively low in cost. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application in accordance with the law. However, the above is only the preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application in this case. Equivalent modifications or variations made by those skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a camera module according to an embodiment of the present invention. Figure 2 is a partial enlarged view of Figure 1. [Main component symbol description] Lens barrel 10 Camera module 100 Lens 40 Mirror holder 20 Image sensing module 50 Cylindrical portion 202 Square-shaped portion 204 Image sensor 502 Circuit board 504 201027222 Carbon tube 208 Carbon black 207 polymer 206
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