200842486 九、發明說明： 【發明所屬之技術領域】 種移動電話用 本發明涉及一種鏡頭模組，特別涉及一 數位相機之鏡頭模組。 【先前技術】 隨著科技的不斷發展，攜帶式電子裝置，如移動電話 的應用日益廣泛，同時也日漸趨向於輕巧、美觀及二BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens module, and more particularly to a lens module of a digital camera. [Prior Art] With the continuous development of technology, portable electronic devices, such as mobile phones, are becoming more and more widely used, and at the same time, they tend to be lighter, more beautiful, and
化，其中，攝像功能係近年新發展的攜帶式電子裝置附加 功能。具數位相機的移動電話因可實現即拍功能、使用^ 便，因此越來越受到廣大使用者之青睞。因移動電話體積 小，故需安裝於其内的鏡頭模組具有較小體積。在人們對 移動電話用數位相機模組追求小型化的同時，亦希望有較The camera function is an additional function of the newly developed portable electronic device in recent years. Mobile phones with digital cameras are becoming more and more popular among users because they can realize the instant shooting function and use them. Since the mobile phone is small in size, the lens module to be mounted therein has a small volume. While people are pursuing miniaturization of digital camera modules for mobile phones, they also hope to have more
咼之成像品質，而物體之成像品質於很大程度上取決於鏡 頭模組之優劣。 A 常見之鏡頭模組通常包括收容於鏡筒内之複數透鏡、 光圈片、濾光片等光學元件，以及用於控制各種光學元件 間距之墊圈等。在該種鏡頭模組之組裝過程中，將上述透 鏡、光圈片、濾光片等光學元件依次收容於鏡筒内，濾光 片與其相鄰的透鏡通過墊圈隔開。濾光片藉由點膠工藝與 墊圈膠合在一起。 ' 鏡頭模組實際應用中，部分鏡頭模組的失效係由於濾 光片脫落造成。濾光片脫落的主要原因係由於在組裝過程 中，濾光片與墊圈點膠不均勻或點膠量不足，使得濾光片 與墊圈之間的附著力不足。 6 200842486 【發明内容】 針對以上内容，有必要提供一種具有較強濾光片附著 力之鏡頭模組。 一種鏡頭模組，其包括：一鏡筒，所述鏡筒内依次收 容有一透鏡組，一塾圈及一濾光片。所述鏡筒具有一内壁， 所述濾光片具有一環狀外側壁。所述濾光片與墊圈相對的 部分及所述濾、光片之環狀外側壁分別通過點膠與所述墊圈 及所述鏡筒内壁膠合在一起。 相對於先雨技術’本發明所提供的鏡頭模組内的濾光 片之與墊圈相對的部分及其環狀外侧壁，分別通過點膠與 墊圈及鏡筒内壁相膠合，因此具有較強之附著力，不易發 生脫落。 【實施方式】 請參閱圖1及圖2，本發明第一實施例的鏡頭模級包 括-鏡筒10、-透鏡紅20、_塾圈3〇及一渡光片4〇。該 透鏡組20、墊圈30及濾光片4Q依次收容於鏡筒1〇内， 且與鏡筒10相配合。 鏡筒10為-端開口-端半封閉的中空圓柱體，其具有 内i 100。慮光片4〇通過點膠工藝與内壁觸及墊圈3〇 膠合在一起。 20 士透鏡且2G由鏡組成。在本實施例中，該透鏡組 ζυ由兩透鏡200，210組成。 柄^圈.3〇為一圓’其外經略小於鏡筒内壁1⑻之直 -〜塾圈30用於調整透鏡組2〇與渡光片⑽之間的距離。 7 200842486 濾光片40為圓片狀，其具有一個環狀外側壁400。該 濾光片40可用於過濾光線，其外徑略小於鏡筒内壁j⑻的 直徑。不同的濾光片4〇可過濾不同波長的光線，在本實施 例中，該濾光片40可以係紅外光截止濾光片、紅外濾光 片、低通濾光片或其他類蜜濾光片。 裝配時，將透鏡組20、墊圈30及濾光片4〇自鏡筒如 的開口端依次裝入鏡筒10内。然後通過點膠的方式將濾先The image quality of the image, and the image quality of the object depends to a large extent on the quality of the lens module. A common lens module usually includes optical components such as a plurality of lenses, aperture plates, and filters housed in the lens barrel, and a gasket for controlling the pitch of various optical components. In the assembly process of the lens module, the optical elements such as the lens, the aperture plate, and the filter are sequentially housed in the lens barrel, and the filter is separated from the adjacent lens by a gasket. The filter is glued to the gasket by a dispensing process. In the actual application of the lens module, the failure of some lens modules is caused by the dropout of the filter. The main reason for the detachment of the filter is that the adhesive between the filter and the gasket is insufficient due to uneven dispensing of the filter and the gasket or insufficient dispensing. 6 200842486 SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a lens module with strong filter adhesion. A lens module includes: a lens barrel in which a lens group, a loop and a filter are sequentially accommodated. The lens barrel has an inner wall, and the filter has an annular outer side wall. The portion of the filter opposite to the gasket and the annular outer sidewall of the filter and the light sheet are respectively glued together with the gasket and the inner wall of the lens barrel. Compared with the prior rain technology, the portion of the filter in the lens module provided by the present invention opposite to the gasket and the annular outer side wall thereof are respectively glued to the gasket and the inner wall of the lens barrel, thereby having a stronger Adhesion, not easy to fall off. [Embodiment] Referring to Figures 1 and 2, a lens module of a first embodiment of the present invention includes a lens barrel 10, a lens red 20, a _ ring 3 〇, and a light-passing sheet 4 。. The lens group 20, the gasket 30, and the filter 4Q are sequentially housed in the lens barrel 1 and are engaged with the lens barrel 10. The lens barrel 10 is an end-opening-end half-closed hollow cylinder having an inner i 100. The light-receiving sheet 4 is glued together with the inner wall-contacting gasket 3〇 by a dispensing process. 20 lens and 2G consist of mirror. In the present embodiment, the lens unit is composed of two lenses 200, 210. The handle ring 〇 〇 〇 〇 〇 ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ ’ 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 7 200842486 The filter 40 is in the form of a disk having an annular outer side wall 400. The filter 40 can be used to filter light having an outer diameter slightly smaller than the diameter of the inner wall j (8) of the lens barrel. The different filters 4 〇 can filter light of different wavelengths. In this embodiment, the filter 40 can be an infrared light cut filter, an infrared filter, a low pass filter or other honey filtering. sheet. At the time of assembly, the lens group 20, the gasket 30, and the filter 4 are sequentially loaded into the lens barrel 10 from the open end of the lens barrel. Then filter by filtering
片40與墊圈30相對的部分膠合在—起，再用相同的方式 將濾光片40的環狀外侧壁400與鏡筒内壁1〇〇相膠合在— 起。此時，墊圈30位於透鏡組20與濾光片4〇之間Y相互 抵持並與鏡筒1〇相配合。由於濾光片4〇與塾圈3〇相對的 部分及濾光Μ的雜外觀，分顧過點料墊圈％ 及鏡筒内壁_婦合，因此具有較強_著力 生脫落。 4閱圖3及圖4 ’本發明第二實施例與上述第一 施例大致相同，不同之處在於鏡筒内壁1〇加鱼遽^片4 的環狀外侧壁雜相接觸之部分均勻分佈有溢膠样ιι〇 該溢膠槽可以為圓形槽、方形槽及各種不規則曰形狀 温膠槽’本實施例中’該溢膠槽11〇為方形槽。於點膠 程中’該溢膠槽携-方面可以防止過多的膠水 至透鏡级衞，另-方面可叫容以的清 片40a的附著力。 曰強了，慮 請參閱圖5至圖6，本發明第三實施例盘上— 施例大致相同，不同之處在於鏡筒内壁聰與濾光片^ 8 200842486 的％狀外側壁4_相_料分妨 槽创。於點膠過程中，該環狀溢膠槽120 止過多的膠水溢出渗入至透鏡組20b，另一方面 更多的膠水，增強了濾光片.的附著力。μ收合 相對於先則技術，本發明所提供的鏡頭模組 ^之與墊__部分及其職外觀，分 勝' 生脫落 墊圈及鏡筒内壁相膠合，因此具有較強之附著力，不易發The portion of the sheet 40 opposite the gasket 30 is glued together, and the annular outer side wall 400 of the filter 40 is glued to the inner wall 1 of the lens barrel in the same manner. At this time, the gasket 30 is located between the lens group 20 and the filter 4A to resist each other and to cooperate with the lens barrel 1B. Due to the difference between the portion of the filter 4〇 and the ring 3〇 and the miscellaneous appearance of the filter, the % of the gasket and the inner wall of the barrel are separated, so that it has a strong force to fall off. 4 and FIG. 4 'The second embodiment of the present invention is substantially the same as the first embodiment described above, except that the inner wall of the lens barrel 1 and the annular outer side wall of the fishing rod 4 are uniformly distributed. The overflow glue tank can be a circular groove, a square groove and various irregular shape-shaped warm glue tanks. In the present embodiment, the overflow tank 11 is a square groove. In the dispensing process, the excess glue can be prevented from being attached to the lens level, and the adhesion of the sheet 40a can be called. Reluctantly, please refer to FIG. 5 to FIG. 6. The third embodiment of the present invention is substantially the same on the disc - the difference is that the inner wall of the lens barrel is the same as the % outer side wall 4_ of the filter ^ 200842486 _ material scores can be created. During the dispensing process, the annular overflow tank 120 prevents excessive glue from penetrating into the lens group 20b, and on the other hand, more glue enhances the adhesion of the filter. Compared with the prior art, the lens module provided by the present invention has a strong adhesion to the pad __ part and its appearance, and the sub-sliding gasket and the inner wall of the lens barrel are glued together. Not easy to send
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例， 自不能=此限制本案之申請專利範圍。舉凡熟悉本案技藝 =人士棱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係本發明第一實施例之鏡頭模組之立體分解圖。 圖2係本發明第一實施例之鏡頭模組之剖示圖。 圖3係本發明第二實施例之鏡頭模組之立體分解圖。 圖4係本查明弟一貫施例之鏡頭模組之剖示圖。 圖5係本發明第三實施例之鏡頭模組之立體分解圖。 圖6係本發明第三實施例之鏡頭模組之剖示圖。 【主要組件符號說明】 30 100，100a，100b 40,40a，40b 鏡筒 10 墊圈 溢膠槽 110,120 鏡筒内壁 透鏡組 20,20a，20b濾光片 9 200842486 透鏡 200,210 外側壁 400,400a，400bIn 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 description is only a 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 the person in accordance with the spirit of the present invention are intended to be within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of a lens module according to a first embodiment of the present invention. 2 is a cross-sectional view showing a lens module according to a first embodiment of the present invention. 3 is an exploded perspective view of a lens module according to a second embodiment of the present invention. Figure 4 is a cross-sectional view of the lens module of the present invention. Fig. 5 is an exploded perspective view showing a lens module according to a third embodiment of the present invention. Figure 6 is a cross-sectional view showing a lens module of a third embodiment of the present invention. [Main component symbol description] 30 100,100a,100b 40,40a,40b Lens barrel 10 Washer Ejection tank 110,120 Inner wall of lens barrel Lens group 20,20a,20b Filter 9 200842486 Lens 200,210 Outer side 400,400a,400b