201118450 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種鏡頭模組，尤其涉及一種應用於手機上 之鏡頭模組。 [先前技術] [0002] 隨著光學成像技術之發展，鏡頭模組在各種成像裝置如 數碼相機、攝像機、手機中得到廣泛應用。整合有鏡頭 模組之手機等可檇式電子裝置，更是得到眾多消費者之 青睞。 〇 [0003] 手機相機之鏡頭尺寸一般較小，將鏡片組裝入鏡筒之後 ，鏡片一般需要精密之定位。如圖1所示，專有技術中之 手機之鏡頭模組3〇包括一個鏡筒3〇2，:及設丨i在鏡筒302 内之鏡片304。鏡筒302内之鏡片等光學元件一般是籍由 點膠固定在鏡筒302内。然而，若上述光學元件點膠固定 不牢固或者膠水老化時，缚頭穩來性會下降》 ί 1 , / 〇 例如，當鏡頭模組30受到金動時；組30中之光學 元件可能會沿著其光轴之方，淨;動，¥而降低鏡頭模組 30内部結構之穩定性。 【發明内容】 [0004] 有黎於此’有必要提供一種結構穩定性更佳之鏡頭模組 〇 [〇〇〇5] 一種鏡頭模組’其包括一個鏡筒及收容在所述鏡筒内之 一個第一鏡片。所述鏡筒包括側壁’所述側壁包括一個 内表面，所述内表面形成有第一卡合面。所述第一鏡片 邊緣形成有與所述第一卡合面相配合之第二卡合面。所 098140761 表單煸號A0101 第3頁/共14頁 0982069987-0 201118450 *卡5面與所述第二卡合面相互卡合，以限定所述 第—鏡片在所述鏡筒内沿其光軸方向移動。 [0006] [0007] [0008] [0009] [0010] [0011] 相較於現有技術，本發明之鏡頭模組籍由在鏡筒内壁以 及第—鏡片邊緣設置卡合面，將鏡片組裝入鏡筒時，該 卡合面能夠卡合鏡片，從而提高了鏡筒結構穩定性。 【實施方式】 下面將結合附圖對本發明作一具體介紹。 實施方式一 請參閱圖2，本發明第一實施方式之鏡頭模組1〇包括一個 鏡筒12以及收容在所述鏡筒12内之一個鏡片單元。所述 鏡片單元從物側到像侧依次包括有第一鏡片14，第二鏡 片16以及第三鏡片18。所述鏡片單元具有，個光轴〇〇， 〇 所述鏡筒12為筒狀結構’其包括側壁122以及設置在所述 側壁122—端之一個承載部I24。所述側壁122包括一個 内表面1222，所述内表面1222靠近所述承載部124處形 成一個圍繞所述第一鏡片14並且朝向所述第一鏡片14光 轴00’突起之第，環狀圓弧凸面1222a。所述承載部124 開設有一個通孔12 4 2 ’所述通孔12 4 2可以使外界之光線 入射到所述鏡筒丨2内° 所述第一鏡片14直接承靠在所述鏡筒12之承載部124上’ 其表面142與所述承載部124之内表面貼合。所述第一鏡 片14邊緣形成朝尚其光軸00’凹陷之第一環狀圓弧凹面 144，所述第一環狀圓弧凹面144與所述第一環狀圓娘凸 098140761 表單煸號A0101 第4頁/共14頁 201118450 面1222a相配合，從而可以將所述第一鏡片14卡合在所述 鏡筒12内部。 [0012] 〇 所述第二鏡片16粘貼在所述第一鏡片14上，所述第=鏡 片18粘貼在所述第二鏡片16上。所述第一鏡片14，第一 鏡片16以及第三鏡片18共同配合成像。所述第—鏡片 ’第二鏡片16以及第三鏡片18可以是球面透鏡或者是非 球面透鏡，在本實施方式中，優選地均為非球面透鏡。 所述第一鏡片14 ’第二鏡片16以及第三鏡片18可以是玻 璃透鏡或者塑膠透鏡等《在本實施方式中，優選地均為 塑膠透鏡。 [0013] 在組裝時’嚇所述第一鏡片14，第二鏡片1 6以及第三鏡 片18相互粘貼，然後將鏡烙單元用力壓入到所述鏡筒12 中，使所述第一鏡片14之第一環狀圓弧凹面144與所述鏡 琦12之第一 ％狀圓弧凸面1222a相卡合._。從而當鏡頭模组 10受到震動時’鏡片單元不會沿所述光軸00，方向發生 位移 〇 Ύ :J,.. 〇 [0014] 實施方式二"“」 [0015] 請參閱圖3 ’本發明第二實施方式提供之—種鏡頭模組2〇 包括一個鏡筒22以及收容在所述鏡筒22内之一個鏡片單 元。所述鏡片單元從物側到像側依次包括有第一鏡月24 ，第二鏡片26以及第三鏡片28。所述鏡筒22包括侧壁 222以及設置在所述側壁222—端之一個承載部224。所 述側壁222包括一個内表面2222。所述第一鏡片24直接 承靠在所述鏡筒22之承栽部224上，其表面242與所述承 098140761 表單編號A0101 第5頁/共14頁 0982069987-0 201118450 載部224之内表面貼合。 [0016]所述第二實施方式與所述第一實施方式之不同在於所魂 鏡筒22之内表面2222靠近所述承載部224處形成一個阌 繞所述第一鏡片24並且遠離所述第一鏡片24光軸00，方 向凹陷之第二環狀圓弧凹面2222a。所述第—鏡片24邊緣 形成遠離其光軸00’方向突出之第二環狀圓弧凸面244, 所述第二環狀圓弧凸面244與所述第二環狀圓弧凹面 2222a相配合，從而可以將所述第一鏡片24卡合在所埯麫 筒22内。 & [〇〇17]在組裝時，將f片單元用力壓入到所述鏡筒22中，使所 述第一鏡片24之第二環狀圓弧凸面244與所:述鏡筒22<箄 一環狀圓弧凹面2222a相卡合。從而當鏡頭模組2〇受糾惠 動時，鏡片單元不會沿所述光軸〇〇，方向發生位移。 [0018] 實施方式三 酬]請參閱圖4 ’本發明第三實施方式提供之一種鏡頭模_ 包括-個鏡筒32以及收容在所述鏡筒32内之一個鏡片單 元。所述鏡片單元從物側到像側依次包括有第—鏡片34 ’第二鏡片36以及第三鏡片38。所述鏡筒咖括側壁 322以及設置在所述_322 —端之—個承載部似。所 述側壁322包括-個内表面。所述第一鏡㈣直接 承靠在所述鏡筒32之承栽部m上，其表面犯與所述承 栽部324之内表面貼合。 [0020] 098140761 所述第三實施方式與所述第一杳& 耳施方式之不同在於所述 鏡筒32之内表面3222靠近所 H來栽部324處形成一個圍 表單編號A0101 第6頁/共14頁 0982069987-0 201118450 Ο [0021] [0022] G [0023] [0024] [0025] 繞所述第一鏡片34並朝所述第一鏡片34光軸00，突出之 第—斜面部3222a，並且所述第一斜面部3222a靠近所述 承栽部324 —端之鏡筒直徑大於遠離所述承載部324—端 之鏡筒直徑。所述第一鏡片34邊緣形成有與所述第一斜 面部3222a相配合之第二斜面部344，所述第二斜面部 344靠近所述承載部324之一端之鏡片直徑大於遠離所述 承栽部324—端之鏡片直徑。所述第一鏡片34表面342與 所述承載部324之内表面貼合，並且所述第二斜面部344 與所述第一斜面部3222a相互配合，從而可以將所述第一 鏡片34卡合在所述鏡筒32内。 在級裴時，將鐃片單元用力壓入到所述鏡筒32中，使所 述第一鏡片34表面342與所述承載部324之内表面貼合， 所述苐一鏡片34之第二斜面部344與所述鏡筒32之第一斜 面部3222a相卡合。從而當鏡頭模組30受到震動時，鏡片 單元不會沿所述光軸〇〇，方向發本位移。· » 相較於現有技術，本發明之鏡頭構組籍由在鏡筒内壁設 海:尹尹'涵』’’’长-夕.* ΐ.- 置卡合面，將鏡片組裝入蜂筒時，該卡合面能夠卡合鏡 片’從而提高了鏡筒結構穩定性β 另外，本領域技術人員還可在本發明精神内做其他變化 ，當然，這些依據本發明精神所做之變化，都應包含在 本發明所要求保護之範圍之内。 【圖式簡單說明】 圖1係現有技術之鏡頭模組之載面圖。 圖2係本發明第一實施方式之鏡頭模組之截面圖。 098140761 表單編號Α0101 第？頁/共14頁 0982069987-0 201118450 [0026] 圖3係本發明第二實施方式之鏡頭模組之截面圖 [0027] 圖4係本發明第三實施方式之鏡頭模組之截面圖 【主要元件符號說明】 [0028] 鏡頭模組10，20， 30 [0029] 鏡筒 12 ，22，32 [0030] 第一鏡片14 ，24 ，34 [0031] 第二鏡片16 ，26 ，36 [0032] 第三鏡片18 ，28 ，38 [0033] 侧壁 122，222，322 [0034] 承載部124，224， 324 [0035] 内表面 1222，2222，3222 [0036] 通孔 1242 ，2242 [0037] 表面 142 ，242， 342 [0038] 第一環狀圓弧凸面 1222a 1 [0039] 第一環狀圓弧凹面 144 [0040] 第二環狀圓弧凹面 2222a [0041] 第二環狀圓弧凸面 244 [0042] 第一斜面部3222a [0043] 第二斜面部344 098140761 表單編號A0101 第8頁/共14頁 0982069987-0201118450 VI. Description of the Invention: [Technical Field] The present invention relates to a lens module, and more particularly to a lens module applied to a mobile phone. [Prior Art] [0002] With the development of optical imaging technology, lens modules are widely used in various imaging devices such as digital cameras, video cameras, and mobile phones. The portable electronic devices, such as mobile phones with integrated lens modules, are favored by many consumers. 〇 [0003] The size of the lens of a mobile phone camera is generally small. After the lens assembly is placed in the lens barrel, the lens generally requires precise positioning. As shown in FIG. 1, the lens module 3 of the mobile phone of the prior art includes a lens barrel 3〇2, and a lens 304 disposed in the lens barrel 302. The optical components such as the lens in the lens barrel 302 are generally fixed in the lens barrel 302 by dispensing. However, if the above-mentioned optical component is not firmly fixed or the glue is aged, the stability of the connector may be lowered. ί 1 , / 〇 For example, when the lens module 30 is subjected to gold; the optical components in the group 30 may be along The stability of the internal structure of the lens module 30 is reduced by the square of the optical axis. SUMMARY OF THE INVENTION [0004] There is a need to provide a lens module with better structural stability. [〇〇〇5] A lens module includes a lens barrel and is housed in the lens barrel A first lens. The lens barrel includes a side wall. The side wall includes an inner surface, and the inner surface is formed with a first engaging surface. The first lens edge is formed with a second engaging surface that cooperates with the first engaging surface. 098140761 Form nickname A0101 Page 3 of 14 page 0982069987-0 201118450 * The card 5 face and the second engaging face are engaged with each other to define the first lens in the lens barrel along its optical axis Move in direction. [0009] [0010] [0011] Compared with the prior art, the lens module of the present invention mounts the lens group by providing an engaging surface on the inner wall of the lens barrel and the edge of the lens. When the lens barrel is used, the engaging surface can engage the lens, thereby improving the stability of the lens barrel structure. [Embodiment] Hereinafter, the present invention will be specifically described with reference to the accompanying drawings. Embodiment 1 Referring to Figure 2, a lens module 1A according to a first embodiment of the present invention includes a lens barrel 12 and a lens unit housed in the lens barrel 12. The lens unit includes a first lens 14, a second lens 16, and a third lens 18 in this order from the object side to the image side. The lens unit has an optical axis 〇〇, and the lens barrel 12 is a cylindrical structure. It includes a side wall 122 and a bearing portion I24 disposed at the end of the side wall 122. The side wall 122 includes an inner surface 1222, and the inner surface 1222 forms a first, rounded circle around the first lens 14 and toward the optical axis 00' of the first lens 14 near the bearing portion 124. Arc convex surface 1222a. The carrying portion 124 defines a through hole 12 4 2 '. The through hole 12 4 2 can make external light into the lens barrel 2. The first lens 14 directly bears against the lens barrel. The surface 142 of the bearing portion 124 of the 12 is attached to the inner surface of the carrying portion 124. The edge of the first lens 14 forms a first annular arc concave surface 144 that is recessed toward its optical axis 00', and the first annular circular arc concave surface 144 and the first circular round female convex 098140761 form nickname A0101 Page 4 of 14 201118450 The face 1222a is fitted so that the first lens 14 can be engaged inside the lens barrel 12. [0012] The second lens 16 is attached to the first lens 14, and the first lens 18 is attached to the second lens 16. The first lens 14, the first lens 16, and the third lens 18 cooperate to form an image. The first lens 16 and the third lens 18 may be spherical lenses or aspherical lenses. In the present embodiment, they are preferably aspherical lenses. The first lens 14' second lens 16 and the third lens 18 may be glass lenses or plastic lenses, etc. In the present embodiment, they are preferably plastic lenses. [0013] during assembly, 'frightened the first lens 14, the second lens 16 and the third lens 18 are pasted to each other, and then the mirroring unit is forced into the lens barrel 12 to make the first lens The first annular arc concave surface 144 of 14 is engaged with the first % circular arc convex surface 1222a of the mirror 12 . Therefore, when the lens module 10 is subjected to vibration, the lens unit does not move along the optical axis 00, and the direction is displaced: J, .. 〇 [0014] Embodiment 2 "" [0015] Please refer to FIG. A lens module 2A according to a second embodiment of the present invention includes a lens barrel 22 and a lens unit housed in the lens barrel 22. The lens unit includes a first mirror month 24, a second lens 26, and a third lens 28 in order from the object side to the image side. The lens barrel 22 includes a side wall 222 and a bearing portion 224 disposed at the end of the side wall 222. The sidewall 222 includes an inner surface 2222. The first lens 24 directly bears on the bearing portion 224 of the lens barrel 22, its surface 242 and the surface of the bearing 098140761 Form No. A0101 Page 5 / Page 14 0982069987-0 201118450 Carrier 224 fit. [0016] The second embodiment differs from the first embodiment in that the inner surface 2222 of the soul barrel 22 forms a wrap around the first lens 24 and away from the first portion 24 A lens 24 optical axis 00, a second annular arc concave surface 2222a recessed in the direction. The edge of the first lens 24 forms a second annular circular arc surface 244 protruding away from the optical axis 00', and the second annular circular convex surface 244 is matched with the second annular circular concave surface 2222a. Thereby, the first lens 24 can be engaged in the barrel 22. & [〇〇17] At the time of assembly, the f-chip unit is strongly pressed into the lens barrel 22, so that the second annular arc convex surface 244 of the first lens 24 and the lens barrel 22< The annular circular concave surface 2222a is engaged with each other. Therefore, when the lens module 2 is subjected to the entanglement, the lens unit does not move along the optical axis, and the direction is displaced. [0018] Embodiment 3 Remuneration] Please refer to FIG. 4, a lens module provided by a third embodiment of the present invention includes a lens barrel 32 and a lens unit housed in the lens barrel 32. The lens unit includes a first lens 34' second lens 36 and a third lens 38 in order from the object side to the image side. The lens barrel is provided with a side wall 322 and a bearing portion disposed at the end of the _322. The side wall 322 includes an inner surface. The first mirror (4) directly bears against the bearing portion m of the lens barrel 32, and its surface is bonded to the inner surface of the bearing portion 324. [0020] 098140761 The third embodiment differs from the first 杳& erection mode in that the inner surface 3222 of the lens barrel 32 forms a square form number A0101 near the H-planting portion 324. a total of 14 pages 0982069987-0 201118450 Ο [0022] [0024] [0024] [0025] around the first lens 34 and toward the optical axis 00 of the first lens 34, protruding the first oblique face 3222a, and the diameter of the lens barrel of the first inclined surface portion 3222a near the end of the bearing portion 324 is larger than the diameter of the lens barrel away from the end of the bearing portion 324. The edge of the first lens 34 is formed with a second inclined surface portion 344 that cooperates with the first inclined surface portion 3222a. The diameter of the lens of the second inclined surface portion 344 near one end of the carrying portion 324 is larger than the distance from the bearing. Part 324 - the lens diameter of the end. The first lens 34 surface 342 is in contact with the inner surface of the carrying portion 324, and the second inclined surface portion 344 and the first inclined surface portion 3222a are engaged with each other, so that the first lens 34 can be engaged Inside the barrel 32. In the stage ,, the cymbal unit is pressed into the lens barrel 32, so that the surface 342 of the first lens 34 is adhered to the inner surface of the bearing portion 324, and the second lens 34 is second. The inclined surface portion 344 is engaged with the first inclined surface portion 3222a of the lens barrel 32. Therefore, when the lens module 30 is subjected to vibration, the lens unit does not shift in the direction along the optical axis. · Compared with the prior art, the lens structure of the present invention is set in the inner wall of the lens barrel: Yin Yin 'han 』 '''长-夕.* ΐ.- 卡. In this case, the engaging surface can engage the lens 'to improve the stability of the lens barrel structure. Further, other variations can be made by those skilled in the art within the spirit of the present invention. Of course, these changes according to the spirit of the present invention are It should be included in the scope of the claimed invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view of a lens module of the prior art. 2 is a cross-sectional view showing a lens module according to a first embodiment of the present invention. 098140761 Form number Α 0101? 3 is a cross-sectional view of a lens module according to a second embodiment of the present invention. [0027] FIG. 4 is a cross-sectional view of a lens module according to a third embodiment of the present invention. DESCRIPTION OF REFERENCE NUMERALS [0028] lens module 10, 20, 30 [0029] lens barrel 12, 22, 32 [0030] first lens 14, 24, 34 [0031] second lens 16, 26, 36 [0032] Three Lenses 18, 28, 38 [0033] Sidewalls 122, 222, 322 [0034] Bearings 124, 224, 324 [0035] Inner Surfaces 1222, 2222, 3222 [0036] Through Holes 1242, 2242 [0037] Surface 142 , 242, 342 [0038] first annular circular arc surface 1222a 1 [0039] first annular circular arc concave surface 144 [0040] second annular circular arc concave surface 2222a [0041] second annular circular convex surface 244 [ 0042] First inclined surface 3222a [0043] Second inclined surface 344 098140761 Form number A0101 Page 8 of 14 0982069987-0