200941058 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種鏡片及鏡頭模組，尤其涉及一種應用 於手機與數位相機等電子產品中之鏡片及鏡頭模組。 【先前技術】 近年來，隨著多媒體技術之發展，鏡頭模組之應用範 圍越來越廣，如應用到數位相機、攝像機及帶有攝像功能 之手機等電子產品中。 在人們對數位相機、攝像機及帶有攝像功能之手機追 求小型化之同時，對其拍攝出之物體之影像品質亦提出了 更高之要求，即希望拍攝物體之影像畫面清晰。物體之成 像品質於很大程度上取決於組裝過程中，鏡頭模組中之各 鏡片之光軸是否對齊。Alpheus W. Burner等人於1995年 SPIE系統、圖像計量學第四次會議（Videometrics IV)上發 表之論文 Zoom Lens Calibration For Wind Tunnel Measurements中揭示了由於鏡頭模組中之各鏡片之光軸不 對齊而產生之影響。 如圖5所示，先前技術之一種鏡頭模組50包括一個鏡 筒52，及依次設置於鏡筒52内之第一鏡片54、間隔體58 及第二鏡片56。組裝時，將第一鏡片54、間隔體58與第 二鏡片56依次垂直組裝到鏡筒52内，從而第二鏡片56通 過間隔體58與第一鏡片54共同配合成像。然而，鏡頭模 組50之第二鏡片56係通過間隔體58與第一鏡片54配合， 由於組裝間隔體58與第二鏡片56產生之累積誤差，可能 5 200941058 出現第一鏡片54之光軸與第二鏡片56之光軸偏離，從而 影響鏡頭模組50之成像品質，進而降低鏡頭模組5〇之組 裝良率。 【發明内容】 因此，有必要提供一種可提高鏡頭模組中各鏡片光軸 同心度且組裝方便之應用於手機與數位相機等電子產品中 之鏡片及鏡頭模組。 ❹ 一禋鏡月，其包括一個位於該鏡片中心之光學部及一 個位於該光學部週邊之固定部，該固定部之表面設置有一 個沿鏡片光轴方向延伸之環形之凸台，該凸台用於與鏡頭 =中相鄰之鏡片卡固配合，該凸台包括一個頂面，該凸 〇罪近鏡片中心之表面包括兩個相鄰之第-側面及第二側 面矣其中，該第一側面與該固定部之表面相接且與固定部 2 :所呈：角為直角’該第二側面連接於第 面之間，且與第—侧面相傾斜。 ❹ 一種鏡頭模組，其包括. 之第-鏡片，该第；^ 涛設置於該鏡筒内 部… 片包括一個位於該鏡片中心之光學 置：一：位於該光學部週邊之固定部，該固定部之表面設 二= 固沿鏡片光轴方向延伸之環形之第一凸台，該第一 勺：一個第-頂面，該第-凸台靠近鏡片中心之表面 包括兩個相鄰之第一側面及第m面 亩，^ 接且與固定部之表面所呈夾角為直 角该第二側面連接於第一侧面與第 角為直 一側面相傾斜；及$ 日1 ’且與第 計及叹置於该鏡筒内之第二鏡片，該第二鏡 6 200941058 片包括一個位於該鏡片中心之光學部及一個位於該光學部 週邊之固疋部，該第二鏡片之固定部卡設於該第一鏡片之 第一凸台之内部，且該第二鏡片之固定部之側面與該第一 鏡片之第一凸台之第一侧面相互貼合，從而使該第一鏡月 與該第二鏡片配合固定。 相較於先前技術，本發明鏡頭模組中，第一鏡片固定 部之表面設置有第一凸台，該第一凸台包括一個第一頂 ❹面該第一凸台靠近鏡片中心之表面包括兩個相鄰之第— 侧面及第二侧面，其中，該第一側面與固定部之表面所呈 夾角為直角，該第二侧面連接於第一側面與第一頂面之 間’且與第-側面相傾斜。第二鏡片之固定部卡設於該第 -鏡片之第-凸台中。該第—凸台之呈直角形狀之第一侧 面可用於穩疋卡固第二鏡片，且使鏡片不易偏心；而該第 -凸台之第二側面與第一侧面相傾斜，於裝配時，該第二 可導引第二鏡片裝配至第一鏡片之第一凸台中，從而 ❹使得裝配更為容易、方便。 【實施方式】 下面將結合附圖 明。 對本發明實施例作進一步之詳細說 iJ ^，圖卜為本發明第—實施例提供之鏡頭模組10， 一 同1叹置於鏡筒11内之第一鏡片12和第 一鏡片13。 第一鏡片 位於該光學部 12包括一個位於其中心之光學部及一個 121週邊之固定部122。該固定部122之表面 7 200941058 1221設置有一第一凸台123。該第一凸台123沿著平行於 . 該第一鏡片12之光軸方向自固定部122向遠離固定部122 . 之方向延伸。該第一凸台123用於與第二鏡片13卡固配 合。第一凸台123自固定部122沿該第一鏡片12中心向外 呈環形分佈。該第一凸台123具有一第一頂面1233。該第 一凸台123靠近鏡片中心之一側包括兩個相鄰之第一侧面 1231及第二侧面1232。其中，該第一侧面1231與該固定 部122之表面1221相鄰且與固定部122之表面1221所呈 Ο 夾角為直角。該第二侧面1232連接於第一側面1231及第 一頂面1233之間，且與第一侧面1231相傾斜。於本實施 例中，該第二側面1232設置為具有一定傾角之斜平面。該 第一側面1231用於與第二鏡片13相抵配合，從而達到第 一鏡片12與第二鏡片13之精確對位而不會偏心。該第二 侧面1232設置為斜平面，則於裝配中，可起到引導第二鏡 片13之作用，從而可較容易將第二鏡片13卡設於第一鏡 ❹片12之第一凸台123中。 與第一鏡片12類似，第二鏡片13亦包括一個位於其 中心之光學部131及一個位於該光學部131週邊之固定部 132。該固定部132具有一侧面1321。該第二鏡片13之固 定部131卡設於該第一鏡片12之第一凸台123之内部。具 體地，該第二鏡片13之固定部131之侧面1321與第一鏡 片12之第一凸台123之第一側面1231相互貼合，且配合 固定，從而達到使該第一鏡片12與第二鏡片13精確對位， 保證第一鏡片12之光軸與第二鏡片13之光軸於同一條直 200941058 線上。 . 鏡頭模組10之組裝方法如下：將第二鏡片13卡設於 第一鏡片12之第一凸台123内，組裝時，首先通過第一鏡 片12之第一凸台之第二侧面1232起引導作用，將第二鏡 片13之固定部132設置於第一鏡片12之第一凸台123内， 然後將第二鏡片13之固定部132之側面1321與第一凸台 123之第一侧面1231對準並使兩個面互相貼合配合，從而 使第二鏡片固定於第一鏡片12之第一凸台123内；然後將 ®第一鏡片12與第二鏡片13組成之鏡片組組裝於鏡筒11中。 本發明第一實施例之第一鏡片12具有一第一凸台 123，第一凸台用於與第二鏡片13之固定部132卡固配合， 從而實現第一鏡片12與第二鏡片13之精確對位，進而保 證第一鏡片12之光轴與第二鏡片14之光軸保持於同一直 線上。而第一鏡片12之第一凸台123設置為具有兩個相鄰 之第一側面1231及第二侧面1232，且第一侧面1231與固 ❹定部之表面1221所呈夾角為直角，第二側面1232設置為 斜平面。此設置，使得第一側面1231可與第二鏡片13之 固定部132之側面1321相互貼合配合，從而使第二鏡片13 與第一鏡片12精確對位不會偏心，而第一鏡片12之第一 凸台123之第二侧面1232設置為斜平面，可於裝配時起到 一定之導引作用，而使第二鏡片13較容易卡設入第一鏡片 12之第一凸台123中。故採用該第一鏡片12可提高鏡頭模 組10成像品質及鏡頭模組10之組裝良率。 請參閱圖2，本發明第二實施例提供之鏡頭模組20與 9 200941058 第一實施例之鏡頭模組10類似，區別在於：鏡頭模組20 包括一第一鏡片22、第二鏡片23、第三鏡片24,第一鏡片 22具有一第一凸台223及一第二凸台224，第一凸台223 及第二凸台224分別設置於第一鏡片22之固定部222之兩 個相對之表面2221及2222上。第二凸台224包括兩個相 鄰之第三侧面2241及第四側面2242，其中，第三側面2241 與該固定部222之表面2222相鄰且與固定部222之表面 2222所呈夾角為直角，該第四側面2242設置為一斜平面。 該第二凸台224具有一第二頂面2243。該第四側面2242 連接於第三侧面2241及第二頂面2243之間，且與第三侧 面2241相傾斜。 第三鏡片24包括一個位於該鏡片中心之光學部241及 一個位於該光學部241週邊之固定部242，該固定部242 之表面2421設置有一個第三凸台243，該第三凸台243具 有一第五側面2431，該第五侧面2431與該第一鏡片22之 ❹第二凸台223之第三側面2241相互貼合，從而使第三鏡片 24與該第一鏡片22配合固定。第一鏡片22之第二凸台223 之第四側面2242設置為斜平面，從而使鏡片組裝時，第三 鏡片24之第三凸台243可先經過第四側面2242之導引， 進而卡設入第一鏡片22之第二凸台224中。 本發明第二實施例提供之鏡頭模組20之第一鏡片22 具有兩個相對之第一凸台223及第二凸台224，該兩個凸台 223及224可分別與第二鏡片23及第三鏡片24配合固定， 從而使整個鏡頭模組20可實現各鏡片之精確對位，進而保 200941058 證各鏡片之光軸在同一直線上。 請參閱圖3，本發明第三實施例提供之鏡頭模組30與 . 第一實施例提供之鏡頭模組10類似，區別在於：第二鏡片 33之固定部332可設置為具有一第四凸台333，該第四凸 台333之高度可根據實際需要而設置，主要用以調節第一 鏡片32與第二鏡片33之間之距離，使得此兩個鏡片之間 距不致過近。 請參閱圖4，本發明第四實施例提供之鏡頭模組40與 ¥第一實施例提供之鏡頭模組10類似，區別在於：第一鏡片 42之固定部422之表面設置有一第一凸台423。該第一凸 台423之第二側面4232連接於第一侧面4231與第一頂面 4233之間，且與第一側面4231相傾斜。於本實施例中，該 第二側面4232設置為具有一定孤度之曲面。 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係本發明第一實施例提供之鏡頭模組之剖視圖。 圖2係本發明第二實施例提供之鏡頭模組之剖視圖。 圖3係本發明第三實施例提供之鏡頭模組之剖視圖。 圖4係本發明第四實施例提供之鏡頭模組之剖視圖。 圖5係先前技術中之一種鏡頭模組之剖視圖。 11 200941058 【主要元件符號說明】 第一側面 1231 、 4231 第二侧面 1232 侧面 1321 第三鏡片 24 第二凸台 224 第三側面 2241 第四侧面 2242 第二頂面 2243 第三凸台 243 第五側面 2431 第四凸台 333 間隔體 58 Λ*1 鏡同 52、11 第一頂面 1233 〇 ¥光學部 121、131、241 第一凸台 123、 第二鏡片 56 、 13 、 23 、 33 鏡頭模組 50、10、20、 30、40 表面 1221 、 2221 、 2222、2421 第一鏡片 54 ' 12、22、 32、42 固定部 122、132 ' 222 ' 242、332 、422 ' 4232 、4233 223 、 423 12BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens and a lens module, and more particularly to a lens and a lens module for use in an electronic product such as a mobile phone and a digital camera. [Prior Art] In recent years, with the development of multimedia technology, the application range of lens modules has become wider and wider, such as in electronic products such as digital cameras, video cameras, and mobile phones with camera functions. While people are pursuing miniaturization of digital cameras, camcorders, and mobile phones with camera functions, there is a higher demand for the image quality of the objects they shoot, that is, the image of the subject is desired to be clear. The image quality of an object depends to a large extent on whether the optical axes of the lenses in the lens module are aligned during assembly. Alpheus W. Burner et al., Paper Lens Calibration For Wind Tunnel Measurements, presented at the 1995 SPIE System, Videometrics IV, revealed that the optical axes of the lenses in the lens module are not The effect of alignment. As shown in FIG. 5, a lens module 50 of the prior art includes a lens barrel 52, and a first lens 54, a spacer 58 and a second lens 56 which are sequentially disposed in the lens barrel 52. When assembled, the first lens 54, the spacer 58 and the second lens 56 are sequentially assembled vertically into the lens barrel 52 such that the second lens 56 is imaged by the spacer 58 in cooperation with the first lens 54. However, the second lens 56 of the lens module 50 is coupled to the first lens 54 through the spacer 58. Due to the cumulative error generated by the assembly spacer 58 and the second lens 56, it is possible that the optical axis of the first lens 54 appears on 5 200941058. The optical axis of the second lens 56 is deviated, thereby affecting the imaging quality of the lens module 50, thereby reducing the assembly yield of the lens module 5. SUMMARY OF THE INVENTION Therefore, it is necessary to provide a lens and a lens module for use in an electronic product such as a mobile phone and a digital camera, which can improve the optical axis concentricity of each lens in the lens module and is easy to assemble. ❹ a mirror month comprising an optical portion at the center of the lens and a fixing portion at the periphery of the optical portion, the surface of the fixing portion being provided with an annular boss extending in the optical axis direction of the lens, the boss For engaging with a lens adjacent to the lens=, the boss includes a top surface, the surface of the convex sinus near the center of the lens includes two adjacent first side and second side, wherein the first The side surface is in contact with the surface of the fixing portion and is opposite to the fixing portion 2: the angle is a right angle 'the second side surface is connected between the first surface and is inclined to the first side surface.镜头 A lens module comprising: a first lens, the first surface is disposed inside the lens barrel... The film comprises an optical device located at a center of the lens: a fixing portion located around the optical portion, the fixing The surface of the portion is provided with two first annular protrusions extending in the direction of the optical axis of the lens, the first scoop: a first-top surface, the surface of the first-protrusion near the center of the lens includes two adjacent first The side surface and the m-th surface of the mu and the surface of the fixed portion are at right angles to each other. The second side is connected to the first side and the first corner is inclined to the straight side; and $1' and the sigh a second lens disposed in the lens barrel, the second mirror 6 200941058 includes an optical portion at a center of the lens and a fixing portion at a periphery of the optical portion, wherein the fixing portion of the second lens is mounted on the lens The first protrusion of the first lens, and the side of the fixing portion of the second lens and the first side of the first protrusion of the first lens are adhered to each other, thereby making the first mirror month and the second The lens is fixed and fixed. Compared with the prior art, in the lens module of the present invention, the surface of the first lens fixing portion is provided with a first protrusion, and the first protrusion includes a first top surface. The surface of the first protrusion near the center of the lens includes Two adjacent first side and second side, wherein the first side is at an angle to the surface of the fixing portion, and the second side is connected between the first side and the first top surface - The side is inclined. The fixing portion of the second lens is engaged in the first boss of the first lens. The first side of the first boss having a right angle shape can be used to securely clamp the second lens and make the lens less eccentric; and the second side of the first boss is inclined with the first side, during assembly, The second guideable second lens is assembled into the first boss of the first lens, thereby making assembly easier and more convenient. [Embodiment] Hereinafter, the drawings will be described. Further to the embodiment of the present invention, the lens module 10 of the first embodiment of the present invention is slid together with the first lens 12 and the first lens 13 which are placed in the lens barrel 11. The first lens is located in the optical portion 12 and includes an optical portion at the center thereof and a fixing portion 122 at the periphery of a 121. A surface 7 of the fixing portion 122 is provided with a first boss 123. The first boss 123 extends in a direction parallel to the optical axis direction of the first lens 12 from the fixing portion 122 away from the fixing portion 122. The first boss 123 is for engaging with the second lens 13. The first bosses 123 are annularly distributed outward from the fixing portion 122 along the center of the first lens 12. The first boss 123 has a first top surface 1233. The first boss 123 is adjacent to one side of the lens center and includes two adjacent first side faces 1231 and second side faces 1232. The first side surface 1231 is adjacent to the surface 1221 of the fixing portion 122 and at an angle perpendicular to the surface 1221 of the fixing portion 122. The second side surface 1232 is connected between the first side surface 1231 and the first top surface 1233 and is inclined to the first side surface 1231. In the present embodiment, the second side surface 1232 is disposed as an inclined plane having a certain inclination angle. The first side surface 1231 is adapted to cooperate with the second lens 13 to achieve precise alignment of the first lens 12 and the second lens 13 without eccentricity. The second side surface 1232 is disposed as an inclined plane, so as to guide the second lens 13 during assembly, so that the second lens 13 can be easily locked to the first boss 123 of the first mirror blade 12 . in. Similar to the first lens 12, the second lens 13 also includes an optical portion 131 at its center and a fixed portion 132 at the periphery of the optical portion 131. The fixing portion 132 has a side surface 1321. The fixing portion 131 of the second lens 13 is disposed inside the first boss 123 of the first lens 12. Specifically, the side surface 1321 of the fixing portion 131 of the second lens 13 and the first side surface 1231 of the first boss 123 of the first lens 12 are adhered to each other and are fixedly fixed, so that the first lens 12 and the second lens are achieved. The lens 13 is accurately aligned to ensure that the optical axis of the first lens 12 and the optical axis of the second lens 13 are on the same straight line 200941058. The assembly method of the lens module 10 is as follows: the second lens 13 is locked in the first boss 123 of the first lens 12, and is assembled first through the second side 1232 of the first boss of the first lens 12. The guiding portion 132 is disposed in the first boss 123 of the first lens 12, and then the side surface 1321 of the fixing portion 132 of the second lens 13 and the first side 1231 of the first boss 123 Aligning and fitting the two faces to each other, so that the second lens is fixed in the first boss 123 of the first lens 12; then assembling the lens group composed of the first lens 12 and the second lens 13 into the mirror In the cylinder 11. The first lens 12 of the first embodiment of the present invention has a first boss 123 for engaging with the fixing portion 132 of the second lens 13 to realize the first lens 12 and the second lens 13 Accurate alignment ensures that the optical axis of the first lens 12 and the optical axis of the second lens 14 are maintained on the same line. The first protrusion 123 of the first lens 12 is disposed to have two adjacent first side surfaces 1231 and second side surface 1232, and the angle between the first side surface 1231 and the surface 1221 of the fixed portion is a right angle, and the second The side surface 1232 is set as an inclined plane. The arrangement is such that the first side surface 1231 can be mated with the side surface 1321 of the fixing portion 132 of the second lens 13 so that the second lens 13 and the first lens 12 are accurately aligned without being eccentric, and the first lens 12 is The second side surface 1232 of the first boss 123 is disposed as an inclined plane, which can play a certain guiding role during assembly, so that the second lens 13 can be easily inserted into the first boss 123 of the first lens 12. Therefore, the first lens 12 can improve the imaging quality of the lens module 10 and the assembly yield of the lens module 10. Referring to FIG. 2 , the lens module 20 of the second embodiment of the present invention is similar to the lens module 10 of the first embodiment. The difference is that the lens module 20 includes a first lens 22 and a second lens 23 . The third lens 24 has a first protrusion 223 and a second protrusion 224. The first protrusion 223 and the second protrusion 224 are respectively disposed on the opposite sides of the fixing portion 222 of the first lens 22. On the surfaces 2221 and 2222. The second boss 224 includes two adjacent third side faces 2241 and a fourth side face 2242, wherein the third side face 2241 is adjacent to the surface 2222 of the fixing portion 222 and at right angles to the surface 2222 of the fixing portion 222. The fourth side 2242 is disposed as an inclined plane. The second boss 224 has a second top surface 2243. The fourth side surface 2242 is connected between the third side surface 2241 and the second top surface 2243 and is inclined with respect to the third side surface 2241. The third lens 24 includes an optical portion 241 at the center of the lens and a fixing portion 242 at the periphery of the optical portion 241. The surface 2421 of the fixing portion 242 is provided with a third boss 243 having a third boss 243. A fifth side 2431, the fifth side surface 2431 and the third side surface 2241 of the second protrusion 223 of the first lens 22 are adhered to each other, so that the third lens 24 and the first lens 22 are fixedly coupled. The fourth side 2242 of the second boss 223 of the first lens 22 is disposed as an inclined plane, so that when the lens is assembled, the third boss 243 of the third lens 24 can be guided through the fourth side 2242, and then the card is set. Into the second boss 224 of the first lens 22. The first lens 22 of the lens module 20 of the second embodiment of the present invention has two opposite first and second bosses 223 and 224, and the two protrusions 223 and 224 are respectively associated with the second lens 23 and The third lens 24 is fixedly fixed, so that the entire lens module 20 can achieve precise alignment of the lenses, and thus ensure that the optical axes of the lenses are on the same line. Referring to FIG. 3, a lens module 30 according to a third embodiment of the present invention is similar to the lens module 10 provided in the first embodiment. The difference is that the fixing portion 332 of the second lens 33 can be disposed to have a fourth convex portion. The height of the fourth boss 333 can be set according to actual needs, and is mainly used to adjust the distance between the first lens 32 and the second lens 33 so that the distance between the two lenses is not too close. Referring to FIG. 4, the lens module 40 of the fourth embodiment of the present invention is similar to the lens module 10 of the first embodiment. The difference is that the surface of the fixing portion 422 of the first lens 42 is provided with a first boss. 423. The second side surface 4232 of the first boss 423 is connected between the first side surface 4231 and the first top surface 4233 and is inclined with the first side surface 4231. In this embodiment, the second side surface 4232 is disposed as a curved surface having a certain degree of degree of separation. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the patent application of the present invention is not limited thereto. Equivalent modifications or variations made by persons skilled in the art in light of the present 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 lens module according to a first embodiment of the present invention. 2 is a cross-sectional view of a lens module according to a second embodiment of the present invention. 3 is a cross-sectional view of a lens module according to a third embodiment of the present invention. 4 is a cross-sectional view of a lens module according to a fourth embodiment of the present invention. Figure 5 is a cross-sectional view of a lens module of the prior art. 11 200941058 [Description of main component symbols] First side 1231, 4231 Second side 1232 Side 1321 Third lens 24 Second boss 224 Third side 2241 Fourth side 2242 Second top surface 2243 Third boss 243 Fifth side 2431 fourth boss 333 spacer 58 Λ*1 mirror same 52, 11 first top surface 1233 光学 optical portion 121, 131, 241 first boss 123, second lens 56, 13, 23, 33 lens module 50, 10, 20, 30, 40 Surfaces 1221, 2221, 2222, 2421 First lens 54' 12, 22, 32, 42 Fixing portions 122, 132' 222 ' 242, 332, 422 ' 4232, 4233 223, 423 12