201116880 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種光學系統’尤其涉及一種鏡頭模組。 [先前技術3 [〇〇〇2] 隨著攝像技術之發展’鏡頭模組在各種用途之攝像裝置 中得到廣泛之應用，其中定焦鏡頭模組更是攝像專業人 士之摯愛。傳統定焦鏡頭模組一般包括鏡筒、鏡座及收 容於鏡筒中之透鏡組、間隔環和濾光片等元件。 [0003] 傳統之定焦鏡頭模組中，鏡座與鏡筒之間通過螺紋進行 緊密配合與鎖附’即通過螺紋配合，鏡筒與鏡座之間形 成鎖附力。調焦時，一般通趣調整調焦環來調節鏡頭模 組中之透鏡組與影像感測器之間之距離，以使鏡頭模組 獲得較好之祕效果。組裝鏡頭模組時，將鏡筒先組裝 之部位與鏡座相應之部位對準，然後進行相對旋轉 、 至鏡筒與鏡座裝配到位。鏡筒與鏡座及它們= 二 ，使得傳統鏡賴財存在如下„，切紋配合愈鎖 附中，-般存在不同螺牙之間鎖附力Μ或不均勾^現 象’這使得鏡筒與鏡座之間之扭力/扭矩不易控制，即不 易調整鏡筒與鏡座之間較精確之位 工 且 因此，在項隹拉 ==過簡單地調節來快速獲得較佳之調焦位置:造 成調焦不容易。 ^ 【發明内容】 [0004] [0005] 有鑑於此，有必要提供 一種調焦容易之鏡 頭模組。 098138179 —種鏡頭模組，其包括一鏡筒、一鏡座及 所述鏡筒包括依次相連接之—作動部及一 表單編號Α0101 一彈性元件； 袖接部，所述 0982065493-0 201116880 作動部之錄大祕料之錄，㈣糾具有一與軸 接部相連接之階梯r所躲接部上設置有外螺紋；所 述鏡座開設有收容所述鏡筒之通孔，該鏡座朝向於物側 之-端為上端面，料通㈣設置有内螺紋，且所述鏡 筒上之外螺紋與所述鏡座上之内螺紋形成松配合使得兩 者之間在轴向不相鎮附，所述彈性元件设置於鏡筒之階 梯面與鏡座之上端面之間’並彈性抵持在階梯面及上端 面之間。 [0006]與先前技術相比，本發明之鏡頭模組中之鏡筒與鏡座通 過松配合且相互之間不鎖附之螺紋實現配合，並採用彈 性元件使鏡筒與鏡座之間實現鎖附’使得鏡筒與鏡座之 間鎖附力均勻，可避免調焦過程因鎖附力不同或不均勻 . ：: ....... 而造成調焦不易。 【實施方式】 [0007] 下面將結合附圖與實施例對本技術方案作進一步詳細說 '丨.：..... 明0 .... .. 〔：. ' ^ ..201116880 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to an optical system', and more particularly to a lens module. [Prior Art 3 [〇〇〇2] With the development of camera technology' lens module has been widely used in various types of camera devices, and the fixed-focus lens module is the favorite of camera professionals. A conventional fixed-focus lens module generally includes a lens barrel, a lens holder, and a lens group, a spacer ring, and a filter housed in the lens barrel. [0003] In the conventional fixed-focus lens module, the mirror base and the lens barrel are tightly fitted and locked by a thread, that is, a threaded engagement is formed, and a locking force is formed between the lens barrel and the lens holder. When focusing, it is common to adjust the focus ring to adjust the distance between the lens group and the image sensor in the lens module, so that the lens module can obtain better secret effects. When assembling the lens module, align the parts of the lens barrel that are assembled first with the corresponding parts of the lens holder, and then rotate relative to each other until the lens barrel and the lens holder are assembled. The lens barrel and the mirror base and the second of them make the traditional mirrors have the following „, the cut pattern is more and more locked, and there is a lock force between the different threads or unevenness. This makes the barrel and The torque/torque between the mirror bases is not easy to control, that is, it is difficult to adjust the precise position between the lens barrel and the lens holder. Therefore, it is easy to adjust the item to quickly obtain a better focus position: In view of the above, it is necessary to provide a lens module that is easy to focus on. 098138179 A lens module including a lens barrel, a lens holder, and the like The lens barrel includes a moving part and a form number Α0101, an elastic element; a sleeve part, the 0982065493-0 201116880 recording part of the recording part, and (4) the correction has a connection with the shaft joint An external thread is disposed on the escaping portion of the step r; the lens holder is provided with a through hole for receiving the lens barrel, the end of the lens holder facing the object side is an upper end surface, and the material passage (4) is provided with an internal thread, and External threads on the lens barrel and internal threads on the lens holder The loose fit makes the axial direction not coincide with each other, and the elastic element is disposed between the step surface of the lens barrel and the upper end surface of the lens holder and elastically resists between the step surface and the upper end surface. [0006] Compared with the prior art, the lens barrel and the lens holder of the lens module of the present invention are matched by loosely fitting and non-locking threads, and the elastic element is used to lock the lens barrel and the lens holder. The locking force between the lens barrel and the lens holder is evenly distributed, and the focusing process can be prevented from being different or uneven due to the locking force. ::....... The focusing is not easy. [Embodiment] [0007] The technical solution will be further described in detail with reference to the accompanying drawings and embodiments. 丨.:..... 明0 .... .. 〔:. ' ^ ..
[00〇8] 如圖1至圖4所示，為本發明實施方式提供之一種鏡頭模 組10，其包括鏡筒11、鏡座12及彈性元件13。 [0009] 098138179 所述鏡筒11兩端開°且相貫通，所述鏡筒11之内部收容 有透鏡組、_環和濾U等元件（圖未示）。所述鏡 筒11自一端至另1依次包括相互連接之作動部111及轴 接部⑴。本實施例中，所述作動部⑴為圓盤狀，所述 轴接部112為圓_狀，且所述物MUW於軸 接部112之外徑，由此，所述作動部⑴鄰 112之-側形成〜個 、 k釉接邠 第5頁/共13頁 表單編號A0101 個階梯面113。所述作動部111邊緣間 0982065493-0 201116880 隔均句之開設有多個半圓形凹槽Ilia，所述凹槽Ilia用 於便於旋轉所述作動部111。所述軸接部112上遠離作動 部111之一端之外側形成有外螺紋112a。 [0010] 所述鏡座12開設有收容所述鏡筒11之通孔121，所述鏡座 1 2之一端為朝向於該鏡頭模組1 〇物側之上端面1 2 2，另一 端為朝向於像侧之下端面123。所述通孔121與所述鏡筒 11之轴接部112形成軸配合。所述通孔121内靠近下端面 123之位置處設置有與轴接部112上之外螺紋112a相耦合 之内螺紋121a。 ^ 〇 [0011] 所述鏡筒11之外螺紋112 a冬齒厚小於所述鏡座1 2之内螺 紋12la之螺距，從而使得鏡嫁11在與鏡座12配合以後， 兩者在轴向仍然有一定之活^空間，導致鏡筒1 1與鏡座 12之間不通過所述外螺紋112a與所述内螺紋121a進行袖 向鎖附。由此，鏡筒11與鏡座12之間不存在螺紋緊密配 合中不同螺牙間鎖附力不同或不均.勻之現象，避免了螺 紋配合中發生咬牙之情況。 [0012] 優選地，所述外螺紋112a與所述内嫘紋121a之螺紋圈數 ^ 為2~3圈，由此，既可容易地實現外螺紋112&與内螺紋 121a之松配合，又便於鏡筒11與鏡座12之加工。 [0013] 所述彈性元件13為環狀彈簧，其具有環狀部131及設在環 狀部131上之彈片132。彈片132—端與環狀部131連接， 另外一端向遠離環狀部131之一個端面翹起，從而形成彈 性自由端。本實施例中，所述彈片132設有4片，當然， 也可以均等地設3片、5片或6片。此外，彈性元件13也不 098138179 表單編號A0101 第6頁/共13頁 0982065493-0 201116880 [0014] ΟAs shown in FIG. 1 to FIG. 4, a lens module 10 according to an embodiment of the present invention includes a lens barrel 11, a lens holder 12, and an elastic member 13. [0009] 098138179 The lens barrel 11 is open at both ends and penetrates. The inside of the lens barrel 11 houses components such as a lens group, a ring, and a filter U (not shown). The lens barrel 11 includes, in order from the one end to the other, the actuating portion 111 and the abutting portion (1) which are connected to each other. In this embodiment, the actuating portion (1) has a disk shape, the shaft connecting portion 112 has a circular shape, and the object MUW is outside the outer diameter of the shaft connecting portion 112, whereby the actuating portion (1) is adjacent to 112. The - side forms ~, k glaze 邠 page 5 / a total of 13 pages form number A0101 step surface 113. The edge of the actuator portion 111 is provided with a plurality of semicircular recesses Ilia for the opening of the interval. The recess Ilia is for facilitating the rotation of the actuating portion 111. An external thread 112a is formed on the outer side of the shaft portion 112 away from the one end of the actuator portion 111. [0010] The lens holder 12 defines a through hole 121 for receiving the lens barrel 11. One end of the lens holder 12 faces the upper end surface of the lens module 1 at the upper end of the lens block 1 2 2 , and the other end is It faces the lower end surface 123 of the image side. The through hole 121 forms a shaft fit with the shaft portion 112 of the lens barrel 11. An internal thread 121a coupled to the external thread 112a of the shaft portion 112 is disposed at a position near the lower end surface 123 in the through hole 121. ^ 〇 [0011] The outer diameter of the outer thread 112 a of the lens barrel 11 is smaller than the pitch of the inner thread 12 la of the lens holder 12 , so that the mirror 11 is engaged with the lens holder 12 in the axial direction. There is still a certain amount of living space, resulting in sleeve locking between the lens barrel 11 and the lens holder 12 without the external thread 112a and the internal thread 121a. Therefore, there is no difference or unevenness in the locking force between the different threads in the tight fitting of the lens barrel 11 and the lens holder 12, thereby avoiding the occurrence of biting in the thread matching. [0012] Preferably, the number of turns of the external thread 112a and the inner ridge 121a is 2 to 3 turns, thereby making it easy to achieve the loose fit of the external thread 112& and the internal thread 121a. The processing of the lens barrel 11 and the lens holder 12 is facilitated. [0013] The elastic member 13 is an annular spring having an annular portion 131 and a resilient piece 132 provided on the annular portion 131. The elastic piece 132 is connected to the annular portion 131, and the other end is lifted away from one end surface of the annular portion 131 to form an elastic free end. In this embodiment, the elastic piece 132 is provided with four pieces. Of course, three, five or six pieces may be equally provided. In addition, the elastic element 13 is also not 098138179 Form No. A0101 Page 6 of 13 0982065493-0 201116880 [0014] Ο
[0015]G[0015] G
[0016] 098138179 局限於本實施例中之環狀彈性元件13，也可以為彈性元 件板等其它彈性元件。 在組裝過程中’將所述彈性元件13放置於鏡座12之上端 面122上’且使所述彈性元件13翹起之彈片132與上端面 122相接觸，然後將鏡筒11旋入到鏡座12之通孔121内， 直至所述階梯面113與彈性元件13相接觸 ，並對彈性元件 13形成播壓’且所述鏡筒丨丨與鏡座12之間為間隙配合。 由此’彈性元件13受壓縮時，將對所述階梯面113與所述 上端面122形成作用力’使松配合之外螺紋丨丨以與内螺紋 121 a相互抵靠形成鎖附力，即彈性元件13之作用力可使 所述鏡筒11與所述鏡座12相互鎖附。同時，在鏡頭模組 10調焦時’彈性元件13之作用力可保持鏡筒η與鏡座i2 鎖附時之穩定度，避免鏡筒u相對鏡座12晃動而造成光 軸傾斜之現象。 本發明之鏡頭模組中之鏡筒與鏡座通過松配合且相互之 間不鎖附之螺紋實現配合，並採用彈性元件使鏡筒與鏡 座之間實現鎖附，使得鏡筒奐鏡座之間鎖附力均勻，可 避免調焦過寿王因鎖附力不同或不均勻而造成調焦不易。 紅上所述，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係本發明實施方式提供之鏡頭模組之分解示意圖。 表單編號Α0101 第7頁/共13 1 [0017] 201116880 [0018] 圖2係圖1中鏡頭模組之另一角度分解示意圖。 [0019] 圖3係圖1中鏡頭模組之組裝立體示意圖。 [0020] 圖4係圖3所示之鏡頭模組沿IV-1V方向之剖視圖。 【主要元件符號說明】 [0021] 鏡頭模組：10 [0022] 鏡筒：11 [0023] 作動部：111 [0024] 軸接部：112 [0025] 階梯面：113 [0026] 凹槽：111a [0027] 外螺紋：112a [0028] 鏡座：12 [0029] 通孔：121 . [0030] 上端面：122 [0031] 下端面：123 [0032] 内螺紋：121 a [0033] 彈性元件：13 [0034] 環狀部：131 [0035] 彈片：132 098138179 表單編號A0101 第8頁/共13頁 0982065493-0[0016] 098138179 is limited to the annular elastic member 13 in the present embodiment, and may be other elastic members such as an elastic member plate. During the assembly process, the elastic member 13 is placed on the upper end surface 122 of the lens holder 12, and the elastic piece 132 that lifts the elastic member 13 is brought into contact with the upper end surface 122, and then the lens barrel 11 is screwed into the mirror. The through hole 121 of the seat 12 is in contact with the elastic member 13 until the stepped surface 113 is in contact with the elastic member 13 and the gap between the lens barrel and the lens holder 12 is clearance fit. Therefore, when the elastic member 13 is compressed, the stepped surface 113 and the upper end surface 122 are formed to exert a force 'to make the loose fitting outer thread 丨丨 to abut against the internal thread 121 a to form a locking force, that is, The force of the elastic member 13 allows the lens barrel 11 and the lens holder 12 to be locked to each other. At the same time, when the lens module 10 is in focus, the force of the elastic member 13 can maintain the stability of the lens barrel η and the lens holder i2 when the lens barrel n is locked, thereby preventing the lens barrel u from tilting relative to the lens holder 12 and causing the optical axis to tilt. In the lens module of the present invention, the lens barrel and the lens holder are matched by loosely fitting and non-locking threads, and the elastic element is used to lock the lens barrel and the lens holder, so that the lens barrel lens holder The locking force is evenly distributed, which can avoid the adjustment of the over-shoulder king due to the different or uneven locking force, which makes the focusing difficult. According to the above description, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to 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 of the present invention. Equivalent modifications or variations made by persons 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 an exploded perspective view of a lens module according to an embodiment of the present invention. Form No. Α0101 Page 7/Total 13 1 [0017] FIG. 2 is another perspective exploded view of the lens module of FIG. 3 is a perspective view showing the assembly of the lens module of FIG. 1. 4 is a cross-sectional view of the lens module shown in FIG. 3 taken along the IV-1V direction. [Main component symbol description] [0021] Lens module: 10 [0022] Lens barrel: 11 [0023] Actuator: 111 [0024] Shaft: 112 [0025] Step surface: 113 [0026] Groove: 111a External thread: 112a [0028] Mirror mount: 12 [0029] Through hole: 121 . [0030] Upper end face: 122 [0031] Lower end face: 123 [0032] Internal thread: 121 a [0033] Elastic element: 13 [0034] Annular portion: 131 [0035] Shrapnel: 132 098138179 Form No. A0101 Page 8 / Total 13 Page 0982065493-0