200941057 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種照相模組，尤其涉及一種用於便攜式 電子產品上的照相模組及其製造方法。 【先前技術】 請參閱第一圖，其係美國專利公開第20060290802號 揭露的一種用於便攜式電子產品之照相模組Γ。該照相模 @ 組1’具有一鏡座10’、一鏡頭20’及一影像感測器30’。該 鏡座10’呈中空筒狀，鏡頭20’具有一鏡筒21’及至少一固 設於該鏡筒21’内的鏡片22’。影像感測器30’具有一基座 31’、一影像感測元件32’及一透光蓋體34’，影像感測元件 32’具有影像感測區32Γ，該影像感測元件32’組裝於基座 31’上，透光蓋體34’藉由黏膠33’固設於基座31’上，影像 感測元件32’之影像感測區32Γ由透光蓋體34’及黏膠33’ ❾ 完全封閉。該照相模組Γ於製造時，先分別製造鏡片22’ 和透光蓋體34’，將鏡片22’組裝在鏡筒21’内形成鏡頭 20’，再分別將鏡頭20’和透光蓋體34’組裝於鏡座10’上和 基座31’上。 惟，該照相模組Γ之鏡頭20’及影像感測器30’採用先 分別獨立地組裝再藉由鏡座10’將二者連接的方式，為防止 組裝誤差導致鏡片22’與透光蓋體34’發生干涉，必須在鏡 片22’與透光蓋體34’之間預留一定的間隙，從而難以進一 200941057 步減小該照相模組r的體積；並且上述照相模組r的製造 方法生產效率較低。 此外，為了達到所需的光學成像效能，往往必須增加 鏡片數目，但這會造成鏡頭厚度增加，而各種便攜式電子 產品日益小型化，應用於電子產品的照相模組亦需隨之小 型化。 並且由於影像感測器可以感測人眼無法看見之紅外 © 光，照相模組必須具有過濾紅外光的功能，習知一般採用 在照相模組的某一元件上鍍紅外光過濾膜的方式使照相模 組具有過濾紅外光的功能，或是採用具有吸收紅外光特性之 玻璃平板。由於塑膠鏡片無法耐受鍍膜過程之高溫，而在 非球面之模造玻璃上鍍膜無法獲得良好的均勻特性，故往 往必須在平板玻璃上鍍紅外光過濾鍍膜以形成一紅外光過 濾鏡片，或是採用具有吸收紅外光特性之玻璃平板鏡片，並 ❹ 將該紅外光過濾鏡片組裝於照相模組内。此外，為了防止 在組裝過程中有微小灰塵或異物掉落於影像感測器表面而 妨礙影像感測功能，往往必須在將影像感測器組裝於基板 上後就立即組裝一片玻璃蓋板以隔絕微小灰塵或異物。然 而該玻璃蓋板和紅外光過濾鏡片佔據照相模組内相當大的 空間，同時也導致最後一片鏡片距離影像感測器較遠，限 制了鏡頭的成像效能並且不利於照相模組的小型化。即使 能夠將玻璃蓋板和紅外光過濾鏡片整合為單一濾光片，仍 200941057 然限制了鏡頭的成像效能且不利於照相模組的小型化。 【發明内容】 本發明的目的係針對上述習知技術之缺陷提供一種可 縮小體積的照相模組及其製造方法。 為達成上述目的，本發明所提供一種照相模組包括鏡 頭及影像感測器。該影像感測器具有基板、固設於基板上 的影像感測元件、電性連接基板與影像感測元件的訊號線 〇 及固設於基板上的支架，該支架與所述影像感測元件固設 於基板之同一側。該鏡頭具有一鏡筒及至少一前鏡片組及 一後鏡片組，該前鏡片組固設於鏡筒内；該鏡筒設置於所 - 述支架上。所述後鏡片組包括一具有過濾、紅外光功能之遽 波透光蓋體及形成於該濾波透光蓋體一侧的鏡片，該後鏡 片組亦設置於支架上。 本發明所提供照相模組的製造方法包括如下步驟： ❹ 步驟一，於大片具有過濾紅外光功能的濾波透光蓋體 一侧形成複數個鏡片，以形成一具有複數個鏡片的光學元 件陣列並使鏡片固化； 步驟二，將大片的濾波透光蓋體進行分割，形成多個 獨立的後鏡片組。 如上所述，本發明照相模組藉由將鏡片形成於濾波透 光蓋體上以形成後鏡片組，使鏡片與濾波透光蓋體之間無 間隙，從而減小了該照相模組的體積，亦增加了該照相模 7 200941057 組光學設計上的自由度，並且其光學補償效果更好，亦提 升了該照相模組的效能。 本發明照相模組的製造方法將鏡片與與濾波透光蓋體 整合成後鏡片組，以陣列方式生產後再切割，可使後鏡片 組生產效率大為提高，便於組裝且可提高整體生產效率。 本發明照相模組的另一製造方法可進一步先將影像感 測器與基板以陣列方式組成，接著將以陣列方式形成的支 @ 架組裝於像感測器與基板陣列之上，然後將後鏡片組陣列 與組裝於支架陣列之上，再進行切割，最終再組裝前鏡片 組，如此達到提高整體生產效率的目標。 【實施方式】 為詳細說明本發明之技術内容、所達成的目的及功 效，以下茲舉實施例並配合圖式詳予說明。 請參閱第二圖及第三圖，該照相模組1包括一鏡頭10 〇 及一影像感測器20。 所述鏡頭10具有一鏡筒11、至少一前鏡片組12及至 少一後鏡片組13，所述前鏡片組12及後鏡片組13均由耐 高溫材料製成。該後鏡片組13由球面或非球面的鏡片131 及濾波透光蓋體132組成，該濾波透光蓋體132具有過濾 人眼無法看見而影像感測元件22可感測之紅外光之功能。 該濾波透光蓋體132可為一平板玻璃133，於該平板玻璃 133之朝向影像感測元件22的一侧鍍有一過濾鍍膜134以 8 200941057 達成過濾紅外光之功效，鏡片131形成於該平板玻璃133 之背向影像感測元件22的一側，如第二圖所示。 該濾波透光蓋體132亦可由具有吸收紅外光特性之破 璃製成，如此則不需要鍍過濾鍍膜134 ’如第三圖所示。 鏡筒11具有一呈圓筒狀的筒壁111，筒壁111的一端 垂直於該筒壁111向内延伸有一環形的延伸部112。所述前 鏡片組12固設於鏡筒11内之鄰近於延伸部112處。 ❹ 請繼續參閱第二圖及第三圖，所述影像感測器20具有 一基板21、影像感測元件22、訊號線23及支架24。所述 影像感測元件22固設於基板21上’並藉由訊號線23與基 板21電性連接以將影像訊號傳遞至基板21上。所述支架 24具有支持部241及自支持部241的一侧垂直於該支持部 241延伸形成的承載部242。該支架24之支持部241固持 於基板21上，所述濾波透光蓋體132固設於支架24之承 ❹ 載部242上，濾波透光蓋體132之設有過濾鍍膜133的一 侧朝向影像感測元件22設置。濾波透光蓋體132、基板21 以及支架24形成一封閉空間，所述影像感測元件22位於 該封閉空間内，以防止灰塵落於影像感測元件22上。鏡頭 10設置於支架24之承载部242上，並使影像感測元件22 位於鏡頭10的光路上，所述後鏡片組13位於鏡筒11内且 位於前鏡片組12與影像感測元件22之間。 請參閱第四圖’為一種上述照相模組1之製造方法， 200941057 包括如下步驟： 步驟一，於大片的濾波透光蓋體132上塗佈具有光學 成像特性之液體材料以形成特定形狀，利用紫外光照射戋 其他方法固化形成圓形非球面的鏡片131，以形成一具有複 數個鏡片131的光學元件陣列； 步驟二，將大片的濾波透光蓋體132沿第四囷中所示 之虛線進行分割，形成多個獨立的後鏡片組13。 ❾ 步驟二，將後鏡片組13組裝於支架24之承栽部242 上，然後將後鏡片組13與支架24的組合體固持於組裝有 影像感測元件22之基板21上，最後將組裝有前鏡片組12 之鏡筒11組裝於承載部242上。於本步驟中，亦可先將支 架24固持於組裝有影像感測元件22之基板21上，然後將 後鏡片組13組裝於支架24之承載部242上再組裝鏡筒 參閱第五圖，顯然，於製造時亦可於上述步驟一之後， © 將複數個影像感測元件22之陣列固設於大片的基板21 上，再將以陣列形式製作之支架24黏結固設於大片的基座 上2卜然後將☆置有鏡片131 車列之大片的遽波透光蓋體 132黏結固設於支架24上，最後再進行切割，以製得影像 感測器2〇與後鏡片組I3的組合體，最後將組裝有前鏡片 組12之鏡筒11組裝於承載部242上。 如上所述’本發明照相模組1藉由將鏡片131設置於 濾波透光蓋體132上以形成後鏡片組13，使鏡片131與濾 200941057 波透光蓋體132之間無_，從㈣小了該照相⑽且i的 體積’亦增加了該照相模組！光學設計上的自由> 其f學補償效果更好，亦提升了該照相模組！的^。並 且前鏡片組U及後鏡片組13均由耐高溫材料製成，於後 續製程中可利用迴禪爐方式組裝於系統印刷電路板上，從 而降低系統組裝成本並提昇產品可靠度。 —本發㈣相模組1的製造方法將偏131與濾波透光 ❹蓋體132整合成後鏡片組13，以_方式生產後再切割， 可使後鏡片組13生產效率大為提高，便於組裝且可提高整 體生產效率。 綜上所述，本發明之「照相模組及其製造方法」由上 述揭露之結構及方法，可以達到所述之功效，且本發明之 申請合乎專利之要件，故依法提出申請。惟，以上所揭露 者，僅為本發明之較佳實施例，自不能以此限定本發明之 ❹權利範圍。至於本發明之其他等效之修飾或變化，皆應涵 蓋在以下本案之申請專利範圍内。 【圖式簡單說明】 第一圖係一種習知的照相模組的剖面示意圖。 圖係本發明之照相模組的一種實施例的剖面示意 圖。 第三圖係本發明之照相模組的另一種實施例的剖面示 意圖。 11 200941057 第四圖係本發明之照相模組的製造方法中將鏡片形成 於大片的濾波透光蓋體的示意圖。 第五圖係本發明之照相模組的製造方法中陣列形式製 作之支架與大片的基板組合的示意圖。 【主要元件符號說明】BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera module, and more particularly to a camera module for use in a portable electronic product and a method of manufacturing the same. [Prior Art] Please refer to the first figure, which is a camera module for portable electronic products disclosed in U.S. Patent No. 2,060,290,802. The camera module 1' has a lens holder 10', a lens 20' and an image sensor 30'. The lens holder 10' has a hollow cylindrical shape, and the lens 20' has a lens barrel 21' and at least one lens 22' fixed in the lens barrel 21'. The image sensor 30 ′ has a pedestal 31 ′, an image sensing component 32 ′ and a transparent cover 34 ′. The image sensing component 32 ′ has an image sensing area 32 Γ, and the image sensing component 32 ′′ is assembled. On the pedestal 31', the transparent cover 34' is fixed on the pedestal 31' by the adhesive 33', and the image sensing area 32' of the image sensing component 32' is made of the transparent cover 34' and the adhesive. 33' 完全 Completely closed. When the camera module is manufactured, the lens 22' and the transparent cover 34' are separately manufactured, the lens 22' is assembled in the lens barrel 21' to form the lens 20', and the lens 20' and the transparent cover are respectively respectively 34' is assembled on the lens holder 10' and on the base 31'. However, the lens 20' and the image sensor 30' of the camera module are respectively assembled separately and then connected by the lens holder 10', so as to prevent the assembly error, the lens 22' and the transparent cover are prevented. When the body 34' interferes, a certain gap must be reserved between the lens 22' and the transparent cover 34', so that it is difficult to reduce the volume of the camera module r by step 200941057; and the manufacturing method of the above camera module r Production efficiency is low. In addition, in order to achieve the required optical imaging performance, it is often necessary to increase the number of lenses, but this will result in an increase in the thickness of the lens, and various portable electronic products are increasingly miniaturized, and the camera module used in electronic products needs to be miniaturized. Moreover, since the image sensor can sense the infrared light that cannot be seen by the human eye, the camera module must have the function of filtering the infrared light, and the conventional method generally adopts the method of plating the infrared light filter film on a certain component of the camera module. The camera module has the function of filtering infrared light or a glass plate having the property of absorbing infrared light. Since the plastic lens cannot withstand the high temperature of the coating process, and the coating on the aspherical molded glass cannot obtain good uniform characteristics, it is often necessary to plate the infrared light filter coating on the flat glass to form an infrared light filtering lens, or adopt A glass flat lens having infrared light absorbing characteristics and assembling the infrared light filtering lens into the camera module. In addition, in order to prevent the micro-dust or foreign matter from falling on the image sensor surface during the assembly process and hinder the image sensing function, it is often necessary to assemble a glass cover immediately after assembling the image sensor on the substrate. Tiny dust or foreign matter. However, the glass cover and the infrared filter lens occupy a considerable space in the camera module, and at the same time, the last lens is far from the image sensor, which limits the imaging performance of the lens and is not conducive to miniaturization of the camera module. Even if the glass cover and infrared filter lens can be integrated into a single filter, 200941057 limits the imaging performance of the lens and is not conducive to miniaturization of the camera module. SUMMARY OF THE INVENTION An object of the present invention is to provide a camera module capable of reducing the volume and a method of manufacturing the same, in view of the above-mentioned drawbacks of the prior art. In order to achieve the above object, a camera module provided by the present invention includes a lens and an image sensor. The image sensor has a substrate, an image sensing component fixed on the substrate, a signal line electrically connected to the substrate and the image sensing component, and a bracket fixed on the substrate, the bracket and the image sensing component It is fixed on the same side of the substrate. The lens has a lens barrel and at least one front lens group and a rear lens group. The front lens group is fixed in the lens barrel; the lens barrel is disposed on the bracket. The rear lens group includes a chopper transparent cover body having a filtering and infrared light function and a lens formed on one side of the filter translucent cover body, and the rear lens group is also disposed on the bracket. The method for manufacturing a camera module provided by the present invention comprises the following steps: ❹ Step 1: forming a plurality of lenses on a side of a large filter transparent cover body having a function of filtering infrared light to form an optical element array having a plurality of lenses and The lens is cured; in step 2, the large filter transparent cover is divided to form a plurality of independent rear lens groups. As described above, the camera module of the present invention forms a rear lens group by forming a lens on the filter transparent cover body, so that there is no gap between the lens and the filter transparent cover body, thereby reducing the volume of the camera module. It also increases the degree of freedom in optical design of the camera module 7 200941057, and its optical compensation effect is better, which also improves the performance of the camera module. The manufacturing method of the camera module of the invention integrates the lens and the filter transparent cover into a rear lens group, and then cuts and then cuts in an array manner, which can greatly improve the production efficiency of the rear lens group, facilitate assembly and improve overall production efficiency. . Another manufacturing method of the camera module of the present invention may further form an image sensor and a substrate in an array manner, and then assemble the arrayed support frame on the image sensor and the substrate array, and then The lens array is assembled on the array of the support, and then cut, and finally the front lens group is assembled, thus achieving the goal of improving overall production efficiency. [Embodiment] The detailed description of the technical contents, the objects and the effects of the present invention will be described in detail below with reference to the embodiments. Referring to the second and third figures, the camera module 1 includes a lens 10 and an image sensor 20. The lens 10 has a lens barrel 11, at least one front lens group 12 and at least one rear lens group 13, and the front lens group 12 and the rear lens group 13 are each made of a high temperature resistant material. The rear lens group 13 is composed of a spherical or aspherical lens 131 and a filter transparent cover 132. The filter transparent cover 132 has a function of filtering infrared light that can be sensed by the human eye and sensed by the image sensing element 22. The filter transparent cover 132 can be a flat glass 133. The filter glass 134 is plated on the side of the flat glass 133 facing the image sensing component 22 to achieve the function of filtering infrared light by the 8 200941057, and the lens 131 is formed on the flat plate. The side of the glass 133 facing away from the image sensing element 22 is as shown in the second figure. The filter translucent cover 132 can also be made of a glass having the property of absorbing infrared light, so that the plating filter 134' is not required as shown in the third figure. The lens barrel 11 has a cylindrical wall 111 having an annular extension 112 extending inwardly from one end of the barrel wall 111. The front lens group 12 is fixed in the lens barrel 11 adjacent to the extension portion 112. Continuing to refer to the second and third figures, the image sensor 20 has a substrate 21, an image sensing element 22, a signal line 23, and a bracket 24. The image sensing component 22 is fixed on the substrate 21 and electrically connected to the substrate 21 via the signal line 23 to transmit the image signal to the substrate 21. The bracket 24 has a support portion 241 and a bearing portion 242 extending from the support portion 241 on one side of the support portion 241. The support portion 241 of the bracket 24 is fixed on the substrate 21, and the filter transparent cover 132 is fixed on the bearing portion 242 of the bracket 24. The side of the filter transparent cover 132 provided with the filter coating 133 is oriented. The image sensing element 22 is disposed. The filter transparent cover 132, the substrate 21 and the bracket 24 form a closed space, and the image sensing element 22 is located in the closed space to prevent dust from falling on the image sensing element 22. The lens 10 is disposed on the carrying portion 242 of the bracket 24, and the image sensing component 22 is located on the optical path of the lens 10. The rear lens group 13 is located in the lens barrel 11 and is located in the front lens group 12 and the image sensing component 22. between. Referring to FIG. 4, a manufacturing method of the camera module 1 described above, 200941057 includes the following steps: Step 1: Applying a liquid material having optical imaging characteristics to a large-sized filter transparent cover 132 to form a specific shape, and utilizing Ultraviolet light irradiation 戋 other methods solidify to form a circular aspherical lens 131 to form an array of optical elements having a plurality of lenses 131; Step two, a large piece of filtered light transmissive cover 132 along the dashed line shown in the fourth turn Segmentation is performed to form a plurality of independent rear lens groups 13. Step 2: The rear lens group 13 is assembled on the bearing portion 242 of the bracket 24, and then the combination of the rear lens group 13 and the bracket 24 is fixed on the substrate 21 on which the image sensing element 22 is assembled, and finally assembled. The lens barrel 11 of the front lens group 12 is assembled on the carrier portion 242. In this step, the bracket 24 may be firstly fixed on the substrate 21 on which the image sensing component 22 is assembled, and then the rear lens assembly 13 is assembled on the bearing portion 242 of the bracket 24 to assemble the lens barrel. In the manufacturing process, after the first step, the array of the plurality of image sensing elements 22 is fixed on the large substrate 21, and the brackets 24 fabricated in the array are bonded and fixed on the large base. 2b then ☆ ☆ 置 置 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 131 Finally, the lens barrel 11 in which the front lens group 12 is assembled is assembled on the carrier portion 242. As described above, the camera module 1 of the present invention forms the rear lens group 13 by disposing the lens 131 on the filter transparent cover 132, so that there is no _ between the lens 131 and the filter 200941057 wave transmissive cover 132, from (4) The camera (10) is smaller and the volume of i has also increased the camera module! Freedom in optical design> The f-sense compensation is better, and the camera module is also improved! ^. Moreover, the front lens group U and the rear lens group 13 are all made of high temperature resistant materials, and can be assembled on the system printed circuit board by means of a aging furnace in the subsequent process, thereby reducing system assembly cost and improving product reliability. - The manufacturing method of the (four) phase module 1 integrates the partial 131 and the filter translucent cover 132 into the rear lens group 13, and then cuts after being produced in a _ mode, so that the production efficiency of the rear lens group 13 is greatly improved, and is convenient. Assembly and improved overall productivity. In summary, the "camera module and its manufacturing method" of the present invention can achieve the above-mentioned effects by the structure and method disclosed above, and the application of the present invention meets the requirements of the patent, so the application is made according to law. However, the above disclosure is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. Other equivalent modifications or variations of the present invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic cross-sectional view of a conventional camera module. BRIEF DESCRIPTION OF THE DRAWINGS Figure is a schematic cross-sectional view of one embodiment of a camera module of the present invention. The third drawing is a cross-sectional view of another embodiment of the camera module of the present invention. 11 200941057 The fourth figure is a schematic view showing a method of manufacturing a photographic module of the present invention in which a lens is formed on a large-sized filter transparent cover. Fig. 5 is a schematic view showing a combination of a frame-formed stent and a large substrate in the method of manufacturing a camera module of the present invention. [Main component symbol description]
[本發明] 照相模組 1 鏡頭 10 Jbiu 鏡简 11 筒壁 111 延伸部 112 前鏡片組 12 後鏡片組 13 鏡片 131 濾波透光蓋體 132 平板玻璃 133 過濾鍍膜 134 影像感測器 20 基板 21 影像感測元件 22 訊號線 23 支架 24 支持部 241 承載部 242 [習知] 照相模組 Γ 鏡座 10, 鏡頭 20， 鏡筒 21， 鏡片 22， 影像感測器 30, 基座 31， 影像感測元件 32, 影像感測區 321， 黏膠 33, 透光蓋體 34， 12[Invention] Camera Module 1 Lens 10 Jbiu Mirror 11 Wall 111 Extension 112 Front Lens Group 12 Rear Lens Group 13 Lens 131 Filter Translucent Cover 132 Plate Glass 133 Filter Coating 134 Image Sensor 20 Substrate 21 Image Sensing element 22 Signal line 23 Bracket 24 Support part 241 Bearing part 242 [Practical] Camera module 镜 Mirror base 10, lens 20, lens barrel 21, lens 22, image sensor 30, pedestal 31, image sensing Element 32, image sensing area 321, adhesive 33, light transmissive cover 34, 12