201038990 .六、發明說明： 【發明所屬之技術領域】 本發明涉及一種鏡頭模組。 【先A技術】 隨著光學成像技術的發展，鏡頭模組在各種成像裝置 如數位相機、攝像機中得到廣泛應用，而整合有鏡頭模組 的移動電話、筆記本電腦等電子裝置，更是得％眾多消費 ❹者的青昧。 為了盡可能減小鏡頭模組的體積，鏡頭模組往往利用 非常少的零件進行鏡片的固定。現有的鏡頭模組固定方式 主要有用間隔環、壓環、熱溶等方式。而壓環的固定方式 係在壓環和鏡筒上加工出螺紋，通過螺緊壓環，從而將鏡 片固定於鏡筒内。 、但當㈣螺緊後，由於搬運或移動產生的震動往往會 〇 f成螺接部分鬆動’從而造成鏡片偏斜或定位不准，由此 :::頭模Γ:裝良率的下降。另外’由於壓環組裴時需 轉’可能帶動鏡片轉動，從而會產生鏡片的偏心問題。 【發明内容】 有馨於此’有必要提供—種組裝可靠的鏡頭模組。 1鏡頭模組，其包括鏡筒、光學元件及壓環。所述 學：：的=於Γ内，所述壓環設置於鏡筒靠近所述光 、 用於將所述鏡片固定於所述鏡筒内。所述 4 201038990 ，筒罪近壓裱的一端設置有第一環狀卡合部及沿鏡筒軸向 ，置的第一定位部，所述壓環設置有至少兩個凸臂及沿壓 2軸向設置的第二定位部，所述凸臂上設置有第二環狀卡 合部y斤述第-環狀卡合部與所述第二環狀卡合部其中一 個狀突起結構，另一個係相配合的環狀凹槽結構，所 =疋位部及第二定位部相配合，用於防止壓環相對鏡 同的相對轉動。 ο 本發明提供的鏡頭模組的M環利用環狀 接卡合，所以不會產生因震動造成編轴 ==動，另通過第一定位部及第二定位部 ==對:筒的相對轉動’來避免帶動鏡片轉動造成的 偏。問碭’從而有利於提高鏡頭模組的組裝良率。 【實施方式】 Ο 二：：：合附圖’對本發明作進-步的詳細說明。 二參見W及圖2,本發明實施方 、、且1〇〇,其包括鏡筒1〇、光學元件20及壓環3〇。兄頭模 所述鏡筒10為一圓筒狀結 端⑴第二端U、外壁13、二；^鏡同10包括第-及第一定位部16。 ▲ 4、4一環狀卡合部15 所述第一定位部16形忐认& ^ 式中’所述第-定位部16形成於 轉動f實施方 的外壁13上。可以理解，當 =的弟一端11 疋鏡疴10套於所述壓環30 5 201038990 述第一 3〇與所述鏡筒10的内壁14相接觸時，所 & &口(5 16則形成於所述鏡筒1〇的内壁工 第一定位部16可工所述 中，所诚笛一— 月鍵結構或滑槽結構。本實施方式 裁面為弋位部16係四個繞所述鏡筒10等距排布的 14上：形的滑鍵結構。所述鏡筒10的第-端11的内辟 14上加工有喜陪灿沾 土 位光學元件2〇。構心所述臺階狀結構14a用於定 ❹诚於口 4所述第一裱狀卡合部15形成於所 兄同、夕壁13上。本實施方式中，所述第—環狀卡 合部!5形成於所述鏡筒1〇的第一❹的外壁13 = =理解’當所述鏡筒1()套於所述壓環如彳 的内壁14相接觸時，所述第一環狀卡:： 形成f所述鏡筒10的内壁14上。所述環狀卡合部15 7以為城突起結構或環狀槽結構。本實施方式中，所述 卡合部15係環狀突起結構，且所述第一環狀卡合部15 〇 ^面係二角形。所述第—環狀卡合部15也可以係梯形， 多邊形或半圓形等其他利於卡合的形狀。本實施方式中， 為了便^所述廢^ 3〇壓入，及防止所述壓環30脫離，所 Τ第一環狀卡合部15的截面的三角形係棘齒狀，且截面的 大角朝向所述鏡筒10的第二端12。所述第一環狀卡合部 可以係繞所述鏡筒1()—圈的整環，也可以係不連續的多 段。本實施方式中’所述第—環狀卡合部15係三個繞所述 鏡筒10 —圈的整環。 所述光學元件20收容於鏡筒10内。本實施方式中， 6 201038990 .所述光學鏡片20抵靠於所述鏡筒10的臺階狀結構14a上。 所述光學元件20可以係鏡片，也可以係濾光片等光學元 件。本實施方式中’所述光學元件2〇係鏡片。 所述壓環30套於鏡筒10靠近光學元件2〇的一端，用 於將所述光學元件20固定於所述鏡筒1〇内。本實施方式 中，所述壓裱30套於鏡筒10的第一端u的外側。可以理 解’所t述壓環30也可以套於所述鏡筒1〇第一端^的内側。 Ο Ο 抑請參閱圖5’所述壓環3〇包括通光孔31、壓環外壁32、 壓環内壁33、至少兩個凸臂34及第二定位部％。所述通 光孔31正對所述光學元件2〇用於透光。所述壓環内壁％ 加工有抵㈣33a，用純壓所述光學元件20。本實施方 式中’所述壓環3G包括四個繞所述壓環3()等距排布的凸 J 34。所述凸臂34上加工有第二環狀卡合部％。本實施 产L中料第一城卡合部％形成於所述壓環30的壓 L壁33上。可以理解，當所述鏡筒10套於所述屢環30 壓二：辟所述第一 J哀狀卡合部3钧則形成於所述壓環30的 上。所述第二環狀卡合部3知可以係環狀突起 二構，且所述第二環狀卡合部 的槽=二二相配Λ的槽型。所述第二環狀卡合部- 狀。本二二Γ 或半圓形等其他利於卡合的形 、也方式中，為了便於所述壓環30壓人， 脫離，所述第二環狀卡合部34二=: 齒狀，且截面的尖角朝向所述鏡筒1〇。曰/、 ’、 7 201038990 二定…5形成於所述壓環靖環内壁 理解，♦収^壓被30相對於所述鏡筒1G轉動。可以 丄;:=卜壁㈣於所述壓…時，所述第 二定位部35可3G的壓環外壁32上。所述第 所述第_ 鍵結構或滑槽結構。本實施方式中， Ο 二:::二部16相配合_ 繞所述壓環心錯位部35與所述凸臂34 狀凹St:鏡頭模組的壓環利用環狀突起結構與環 向移所以不會產生因震動造成壓環沿軸 止壓變另通過第一定位部及第二定位部的配合防 偏心問二=:對轉動，來避免帶動鏡片轉動造成的 從而有利於提高鏡頭模組的組裝良率。 化，作β本7員域技術人員可在本發明精神内做其他變 在本：所==::f所做的變化，都應包含 【圖式簡單說明】 圖1為本發明提供的鏡頭模組的分解圖； 圖2為圖1的鏡頭模組的組裝圖； 圖3為沿圖2的ΙΠ_ΙΠ線所得的剖視圖。 圖4為圖3中的ιν處的放大圖。 圖5為圖1的鏡頭模組的壓環的示意圖。 8 201038990 【主要元件符號說明】 鏡頭模組 100 hiu /r/r 鏡间 10 第一端 11 第二端 12 外壁 13 内壁 14 臺階狀結構 14a 第一環狀卡合部 15 第一定位部 16 光學元件 20 壓環 30 通光孔 31 壓環外壁 32 壓環内壁 33 抵靠部 33a 凸臂 34 第二環狀卡合部 34a 第二定位部 35 ❹ 9201038990. VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a lens module. [First A technology] With the development of optical imaging technology, lens modules are widely used in various imaging devices such as digital cameras and video cameras, and electronic devices such as mobile phones and notebook computers integrated with lens modules are more The savage of many consumers. In order to minimize the size of the lens module, the lens module often uses a very small number of parts to fix the lens. The existing lens module fixing method mainly uses a spacer ring, a pressure ring, and a hot solution. The fixing method of the pressure ring is to machine the thread on the pressure ring and the lens barrel, and the lens is fixed in the lens barrel by screwing the pressure ring. However, when (4) is tightened, the vibration caused by handling or moving tends to be loose, and the lens is loose or misaligned, thereby causing the lens to be skewed or misaligned. Thus::: Head mold: The drop in the yield. In addition, the rotation of the lens may be caused by the rotation of the pressure ring group, which may cause eccentricity of the lens. SUMMARY OF THE INVENTION It is necessary to provide a reliable lens assembly. A lens module comprising a lens barrel, an optical component, and a pressure ring. The pressure ring is disposed in the lens barrel near the light for fixing the lens in the lens barrel. The 4 201038990 is provided with a first annular engaging portion and a first positioning portion disposed along the axial direction of the lens barrel, and the pressure ring is provided with at least two convex arms and pressure 2 a second positioning portion disposed axially, wherein the convex arm is provided with a second annular engaging portion, wherein the first annular engaging portion and the second annular engaging portion have a one-like protruding structure, and A matching annular groove structure, the clamp portion and the second positioning portion cooperate to prevent relative rotation of the pressure ring relative to the mirror. ο The M-ring of the lens module provided by the present invention is engaged by the ring-shaped connection, so that the axis is not caused by the vibration, and the second positioning part and the second positioning part are the same. 'To avoid the bias caused by the rotation of the lens. Ask 砀' to help improve the assembly yield of the lens module. [Embodiment] Ο 2::: With reference to the drawings, a detailed description of the present invention will be made. 2, and FIG. 2, the present invention, and 1 〇〇, includes a lens barrel 1 , an optical element 20 , and a pressure ring 3 . The lens barrel 10 is a cylindrical end (1), a second end U, an outer wall 13, and a second; the mirror 10 includes a first and first positioning portion 16. ▲ 4, 4 ring-shaped engaging portion 15 The first positioning portion 16 is shaped and the first positioning portion 16 is formed on the outer wall 13 of the rotation f-implementing side. It can be understood that when the younger end 11 of the = 11 is placed on the pressure ring 30 5 201038990, the first 3 接触 is in contact with the inner wall 14 of the lens barrel 10, the && mouth (5 16 The first positioning portion 16 formed on the inner wall of the lens barrel 1 can be formed in the middle, and has a moon-moon key structure or a chute structure. The cutting surface of the embodiment is a winding portion 16 and four windings. The lens barrel 10 is arranged equidistantly on the shape of a 14-shaped sliding key structure. The inner periphery 14 of the first end 11 of the lens barrel 10 is processed with a squeezing earth optic element 2 〇. The first structure-like structure 15 is formed on the brother's body and the night wall 13. The first ring-shaped engaging portion! 5 is formed in the present embodiment. The outer wall 13 of the first cymbal of the lens barrel 1 = = understands that when the lens barrel 1 is placed in contact with the inner wall 14 of the pressure ring such as the cymbal, the first annular card: f The inner wall 14 of the lens barrel 10. The annular engaging portion 15 is a city protrusion structure or an annular groove structure. In the embodiment, the engaging portion 15 is an annular protrusion structure, and the First annular snap The first ring-shaped engaging portion 15 may have a shape such as a trapezoidal shape, a polygonal shape, or a semicircular shape, which is advantageous for the engagement. In the present embodiment, the waste is omitted. Pressing in and preventing the pressure ring 30 from coming off, the triangular shape of the cross section of the first annular engagement portion 15 is ratchet-shaped, and the large angle of the cross section faces the second end 12 of the lens barrel 10. An annular engaging portion may be wound around the entire circumference of the lens barrel 1 or a plurality of non-continuous segments. In the present embodiment, the first annular engaging portion 15 is three windings. The optical tube 20 is housed in the lens barrel 10. In the present embodiment, 6 201038990, the optical lens 20 abuts against the stepped structure 14a of the lens barrel 10. The optical element 20 may be a lens or an optical element such as a filter. In the present embodiment, the optical element 2 is a lens. The pressure ring 30 is sleeved on the end of the lens barrel 10 near the optical element 2〇. For fixing the optical component 20 in the lens barrel 1 . In the embodiment, the pressure clamp 30 is sleeved on the lens barrel The outer side of the first end u of 10. It can be understood that the pressure ring 30 can also be placed inside the first end ^ of the lens barrel 1 Ο 抑 抑 参阅 图 ' ' ' ' ' ' ' 所述 所述 所述The light-passing hole 31, the outer ring wall 32 of the pressure ring, the inner wall 33 of the pressure ring, the at least two convex arms 34 and the second positioning portion %. The light-passing holes 31 are opposite to the optical element 2 for transmitting light. The inner wall % of the ring is machined with a (four) 33a, and the optical element 20 is purely pressed. In the present embodiment, the pressure ring 3G includes four protrusions J 34 arranged equidistantly around the pressure ring 3 (). A second annular engagement portion % is machined on the arm 34. In the present embodiment, the first material engagement portion % of the material L is formed on the pressure wall 33 of the pressure ring 30. It can be understood that when the lens barrel 10 is sleeved on the repeating ring 30, the first J-shaped engaging portion 3 is formed on the pressure ring 30. The second annular engaging portion 3 is configured to be a ring-shaped projection structure, and the groove of the second annular engaging portion is a groove type of a two-two phase coupling. The second annular engaging portion is shaped. In the other shapes and manners, such as the second or the semicircular shape, in order to facilitate the pressing and disengaging of the pressure ring 30, the second annular engaging portion 34== tooth-shaped and cross-section The sharp corner faces the lens barrel 1〇.曰/, ‘, 7 201038990 bis... 5 is formed on the inner wall of the pressure ring. It is understood that the yoke 30 is rotated relative to the barrel 1G. The second positioning portion 35 may be 3G on the outer ring wall 32 of the pressure ring when the wall is at the pressure. The first _ key structure or the chute structure. In this embodiment, Ο 2::: two 16-phase fits _ around the press ring center misalignment portion 35 and the convex arm 34-shaped recess St: the pressure ring of the lens module utilizes an annular protrusion structure and a circumferential direction shift Therefore, the vibration of the pressure ring along the shaft is not caused by the vibration, and the eccentricity of the first positioning portion and the second positioning portion is prevented. XX is rotated to avoid the rotation of the lens, thereby facilitating the improvement of the lens module. Assembly yield. The technical staff of the 7-member domain can make other changes in the spirit of the present invention: the changes made by ==::f should include a simple description of the drawing. FIG. 1 is a lens provided by the present invention. 2 is an exploded view of the module; FIG. 2 is an assembled view of the lens module of FIG. 1; and FIG. 3 is a cross-sectional view taken along line ΙΠ_ΙΠ of FIG. Fig. 4 is an enlarged view of the ιν in Fig. 3. FIG. 5 is a schematic view of a pressure ring of the lens module of FIG. 1. FIG. 8 201038990 [Description of main component symbols] Lens module 100 hiu /r/r Inter-mirror 10 First end 11 Second end 12 Outer wall 13 Inner wall 14 Stepped structure 14a First annular engaging portion 15 First positioning portion 16 Optical Element 20 Pressure ring 30 Light-passing hole 31 Pressure ring outer wall 32 Pressure ring inner wall 33 Abutment portion 33a Projection arm 34 Second annular engagement portion 34a Second positioning portion 35 ❹ 9