201118449 六、發明說明： 【發明所屬之技彳标領域】 [0001] 本發明涉及一種間隔環及具有該間隔環的鏡頭模組。 【先前技術】 [0002] 隨著光學成像技術的發展，鏡頭模組在數位相機、攝像 機等成像裝置中得到廣泛應用，而整合有鏡頭模組的手 機、筆記本等電子裝置，更得到眾多消費者的青睞。具 有拍攝功能的鏡頭模組一般由光學元件以及間隔環等組 成，間隔環設置在相鄰的兩個光學元件之間以調整該相 鄰的兩個光學元件之間的距離，進而調整該鏡頭模組的 光學性能，如設置在兩個鏡片之間以調整鏡頭模組的有 效焦距。 [0003] 目前，間隔環一般藉由射出成型得到。某些實際應用中 ，為了阻隔透過鏡片邊緣的雜散光，間隔環的内表面需 設計成楔形。楔形内表面的尖角藉由靠破得到。一般地 ，若尖角過小（如：小於或等於45度），則靠破處不易成 型，導致間隔環的内徑比設計值小。若尖角過大（如：大 於或等於80度），則在從澆口注入原料時衝力使原料充滿 尖角處，由於衝力大，原料甚至可以充至公、母模之間 的縫隙，這樣就容易產生毛邊，成型後也會導致間隔環 的内徑的尺寸不均一，不準確。然而，在應用中，間隔 環的内徑的尺寸對鏡頭模組的光學性能的影響可能很大 ，間隔環的内徑可能無法滿足要求。 【發明内容】 [0004] 有鑒於此，有必要提供一種成型時其内徑的尺寸易滿足 098140759 表單編號A0101 第4頁/共13頁 098 201118449 要求的間隔環及具有該間隔環的鏡頭模組。 [0005] 一種間隔環，其用於安裝在一鏡筒内且設置於一第一光 學元件與一第二光學元件之間。該間隔環包括一用於抵 持該第一光學元件的第一表面、一相背且平行於該第一 表面並用於抵持該第二光學元件的第二表面、一與該第 一表面及該第二表面垂直連接且用於抵持該鏡筒的外侧 壁及一與該外側壁相背的内侧壁。該間隔環具有一向該 間隔環内突的頂點。該内侧壁包括一自該頂點平行於第 ❸ 一表面向該外侧壁延伸的第一侧壁、一用於連接該第二 表面與該第一側壁的第二側壁及一向該頂點的方向延伸 且連接該第一表面與該第一側壁的第三側壁。該第一侧 壁與該第三侧壁在該頂點處形成一尖角，該尖角在60度 至70度的範圍内。 [0006] 一種鏡頭模組，其包括一鏡筒、一第一光學元件、一第 二光學元件及一上述的間隔環。該第一光學元件、該間 〇 [0007] 隔環及該第二光學元件依次收容於該鏡筒内。 上述間隔環及具有該間隔環的鏡頭模組，其第一側壁與 第三側壁在頂點處形成一尖角，且該尖角在60度至70度 的範圍内，在該角度下該間隔環較容易成型且不容易產 生毛邊，可以保證成型後該間隔環的内徑較準確。 [0008] 【實施方式】 下面將結合附圖，對本發明作進一步的詳細說明。 [0009] 請參閱圖1，本發明提供的一種鏡頭模組100包括一鏡筒 10、一第一光學元件20、一第二光學元件30及一間隔環 098140759 表單編號Α0101 第5頁/共13頁 0982069985-0 40 ° 201118449 [0010] 該鏡筒1 0包括一成像侧11 0及一與該成像侧11 0相對的開 口側 12 0。 [0011] 該第一光學元件20、該間隔環40及該第二光學元件30從 該成像侧110到該開口側120依次收容於該鏡筒10内。本 實施方式中，該第一光學元件20及該第二光學元件30均 為鏡片且具有一共同的光轴00’ 。 [0012] 請結合圖2，該間隔環40包括一第一表面41、一相背且平 行於該第一表面41的第二表面42、一垂直連接該第一表 面41與該第二表面42的外側壁43及一與該外側壁43相背 的内侧壁4 4。 [0013] 該第一表面41靠近該開口側120，其用於抵持第二光學元 件30。該第二表面42靠近該成像側110，其用於抵持該第 一光學元件20。該外侧壁43用於抵持該鏡筒10。 [0014] 該間隔環40具有一向該間隔環40内突的頂點S。該内侧壁 44包括一自該頂點S沿平行於第一表面41向該外側壁43延 伸的第一側壁441、一連接該第二表面42與該第一侧壁 441的第二側壁442及一向該頂點S的方向延伸且連接該第 一表面41與該第一側壁441的第三侧壁443。可以理解， 該第一側壁441在該外侧壁43上的正投影位於該第一表面 41和該第二表面42之間。 [0015] 該第一側壁441與該第三側壁443在該頂點S處形成一尖角 6>，本實施方式中，60° S 0 $70°，如此，該尖角0較 容易成型且不容易產生毛邊，可以保證成型後該間隔環 098140759 表單編號Α0101 第6頁/共13頁 0982069985-0 201118449 [0016] ο [0017] Ο [0018] [0019] 40的内徑較準確。 由於現有的在缝馳巾存在対績母紅對合模時難 以對準而不容易形成該尖角Θ的問題。本實施方式中， 該間隔環40係藉由射出成型的方法得_，具㈣，在 公模（圖未示）與母模（圖未示）合模後形成—型腔，而該 間隔環40的頂點S則在該公模與該母模的交匯處形成，由 於該第-㈣441自該頂點平行於該第—表純向該外侧 壁43延伸得到。公模與母模合模時呈交錯靠近，這樣較 容易形成該尖角θ。在本實施方式巾，該第—側壁441的 長度在0.025毫米至0.035毫米的範圍内。 另外，若該第二側壁442與該光軸00，（圖中辨示為與光 轴00的平行線MM )所成的銳角的度數1太小，則成 型後容易產生毛邊使該間隔環4〇的内徑尺寸不準確，若 該第二側壁442與該光轴〇〇’所成的銳角的度數j太大 ，該間隔環40的尖端過尖，在生產過程中專容易成型。 本實施方式中，該該第二側壁442與該光軸〇〇，所成的銳 角的度數40 S 1 $60。。知此，易於成型且可以使該間 隔環40的内徑尺寸更準確。 該第三側壁443包括一第一段443a、一第二段443b及一 第三段443c。該第一段443a自該第一表面41垂直延伸出 來。該第二段443b與該第一段443a連接且向該頂點§的 方向延伸。該第三段443c的一端與該第二段443b連接， 另一端與該頂點S連接。 該第一段443a的長度不低於0.03毫米，即該第一段443a 098140759 表單編號A0101 第7頁/共13頁 0982069985-0 201118449 的長度可以為0. 03毫米，也可以大於0. 03毫米。如此’ 可以防止成型時產生的毛邊影響該間隔環40的内側壁44 處在與該外側壁43平行的方向上的厚度 ，從而使該第二 光學兀件30與該間隔賴的第-表面41貼合承靠 ，使該 第二光學元件30的光軸與第一光學元件20的光轴保持一 致。 [0020] [0021] [0022] [0023] [0024] [0025] 該第二段443b與該光軸〇〇，所成的銳角的度數6〇。$ 2 $70 ，該第三段443c與該光軸00’所成的銳角的度數 20 ~ 3^30°。如此’可以使該間隔環40的尖端不會 過尖’從而易於成型。 上述間隔環及具有該間隔環的鏡頭模組，其第一侧壁與 第二側壁在頂點處形成一尖角，且該尖角在度至度 的範圍内，在該角度下該間隔環較容易成型且不容易產 生毛邊，可以保證成型後該間隔環的内徑較準確。 综上所述，本發明確已符合發明專利之要件，遂依法提 出專利申明β惟，以上S亥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為本發明較佳實施方式的相機模組的剖視圖。 圖2為圖1中的間隔環的Π處的放大圖。 【主要元件符號說明】 鏡頭模組 098140759 表單編號Α0101 第8頁/共13頁 0982069985-0 100 10 201118449 [0026] 鏡筒 [0027] 成像側 [0028] 開口侧 [0029] 第一光學元件 [0030] 第二光學元件 [0031] 間隔環 [0032] 第一表面 〇 [0033] 第二表面 [0034] 外側壁 • [0035] 内侧壁 [0036] 第一側壁 [0037] 第二侧壁 q [0038] 第三侧壁 [0039] 第一段 [0040] 第二段 [0041] 第三段201118449 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a spacer ring and a lens module having the same. [Previous Technology] [0002] With the development of optical imaging technology, the lens module has been widely used in imaging devices such as digital cameras and video cameras, and electronic devices such as mobile phones and notebooks integrated with lens modules have received many consumers. Favor. The lens module with shooting function is generally composed of an optical element and a spacer ring, and the spacer ring is disposed between two adjacent optical elements to adjust the distance between the adjacent two optical elements, thereby adjusting the lens mode. The optical properties of the set, such as between two lenses, to adjust the effective focal length of the lens module. [0003] Currently, spacer rings are generally obtained by injection molding. In some practical applications, the inner surface of the spacer ring is designed to be wedge-shaped in order to block stray light passing through the edge of the lens. The sharp corners of the inner surface of the wedge are obtained by breaking. Generally, if the sharp corner is too small (e.g., less than or equal to 45 degrees), the breakage is not easily formed, resulting in the inner diameter of the spacer ring being smaller than the design value. If the sharp corner is too large (for example, greater than or equal to 80 degrees), the impulse will cause the raw material to fill the sharp corner when the raw material is injected from the gate. Due to the large force, the raw material can even fill the gap between the male and female molds, thus It is easy to produce burrs, and the inner diameter of the spacer ring is not uniform and inaccurate after molding. However, in applications, the size of the inner diameter of the spacer ring may have a large effect on the optical performance of the lens module, and the inner diameter of the spacer ring may not meet the requirements. SUMMARY OF THE INVENTION [0004] In view of the above, it is necessary to provide a spacer ring having a size that is easy to meet the requirements of 098140759 Form No. A0101, No. 4/13, 098, 201118449, and a lens module having the spacer ring. . [0005] A spacer ring for mounting in a lens barrel and disposed between a first optical component and a second optical component. The spacer ring includes a first surface for resisting the first optical element, a second surface opposite to the first surface and for resisting the second optical element, and a first surface and The second surface is vertically connected and is configured to resist an outer sidewall of the lens barrel and an inner sidewall opposite the outer sidewall. The spacer ring has an apex that projects into the spacer ring. The inner sidewall includes a first sidewall extending from the apex parallel to the second surface toward the outer sidewall, a second sidewall for connecting the second surface and the first sidewall, and a direction extending toward the apex and Connecting the first surface and the third sidewall of the first sidewall. The first side wall and the third side wall form a sharp corner at the apex, the sharp angle being in the range of 60 to 70 degrees. A lens module includes a lens barrel, a first optical element, a second optical element, and a spacer ring as described above. The first optical element, the spacer [0007] and the second optical element are sequentially housed in the lens barrel. The spacer ring and the lens module having the spacer ring have a first side wall and a third side wall forming a sharp corner at an apex, and the sharp angle is in a range of 60 degrees to 70 degrees, and the spacer ring is at the angle It is easier to form and is less prone to burrs, which ensures that the inner diameter of the spacer ring is more accurate after molding. [Embodiment] Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings. Referring to FIG. 1 , a lens module 100 according to the present invention includes a lens barrel 10 , a first optical component 20 , a second optical component 30 , and a spacer ring 098140759 . Form number Α 0101 5 / 13 Page 0982069985-0 40 ° 201118449 [0010] The lens barrel 10 includes an imaging side 110 and an open side 120 opposite the imaging side 110. [0011] The first optical element 20, the spacer ring 40 and the second optical element 30 are sequentially received in the lens barrel 10 from the imaging side 110 to the opening side 120. In this embodiment, the first optical element 20 and the second optical element 30 are both lenses and have a common optical axis 00'. [0012] Referring to FIG. 2, the spacer ring 40 includes a first surface 41, a second surface 42 opposite to the first surface 41, and a first surface 41 and a second surface 42. The outer side wall 43 and an inner side wall 44 opposite the outer side wall 43. [0013] The first surface 41 is adjacent to the open side 120 for resisting the second optical element 30. The second surface 42 is adjacent the imaging side 110 for abutting the first optical element 20. The outer side wall 43 is for resisting the lens barrel 10. [0014] The spacer ring 40 has a vertex S that projects into the spacer ring 40. The inner sidewall 44 includes a first sidewall 441 extending from the vertex S along the first surface 41 toward the outer sidewall 43 , a second sidewall 442 connecting the second surface 42 and the first sidewall 441 , and a direction The direction of the vertex S extends and connects the first surface 41 and the third sidewall 443 of the first sidewall 441. It can be understood that the orthographic projection of the first side wall 441 on the outer side wall 43 is located between the first surface 41 and the second surface 42. [0015] The first sidewall 441 and the third sidewall 443 form a sharp corner 6 at the vertex S, in the embodiment, 60° S 0 $70°, so that the sharp corner 0 is easier to shape and is not easy. The burr is generated to ensure that the spacer ring 098140759 after molding. Form No. 1010101 Page 6 / Total 13 Page 0992069985-0 201118449 [0017] [ [0018] The inner diameter of 40 is more accurate. Due to the existing problems in the stitching towel, it is difficult to form the mating angle when it is difficult to form the mother-red pair. In the present embodiment, the spacer ring 40 is obtained by injection molding, and has a cavity formed by clamping a male mold (not shown) and a female mold (not shown), and the spacer ring is formed. The vertex S of 40 is formed at the intersection of the male mold and the female mold, since the first (four) 441 extends from the vertex parallel to the first surface to the outer side wall 43. When the male mold and the female mold are closed, they are staggered, which makes it easier to form the sharp angle θ. In the towel of the present embodiment, the length of the first side wall 441 is in the range of 0.025 mm to 0.035 mm. In addition, if the degree 1 of the acute angle formed by the second side wall 442 and the optical axis 00 (the line parallel to the optical axis 00 is MM) is too small, the burr is easily generated after molding to make the spacer ring 4 The inner diameter of the crucible is inaccurate. If the degree j of the acute angle formed by the second side wall 442 and the optical axis 〇〇 is too large, the tip end of the spacer ring 40 is too sharp and is easily formed during the production process. In this embodiment, the second side wall 442 and the optical axis are formed at an acute angle of 40 S 1 $60. . Knowing this, it is easy to mold and the inner diameter of the spacer ring 40 can be made more accurate. The third sidewall 443 includes a first segment 443a, a second segment 443b, and a third segment 443c. The first segment 443a extends perpendicularly from the first surface 41. The second segment 443b is coupled to the first segment 443a and extends in the direction of the apex §. One end of the third segment 443c is connected to the second segment 443b, and the other end is connected to the vertex S. The length of the first segment 443a is not less than 0.03 mm, that is, the length of the first segment 443a 098140759, the form number A0101, the seventh page, the total length of . Thus, it is possible to prevent the burrs generated during molding from affecting the thickness of the inner side wall 44 of the spacer ring 40 in a direction parallel to the outer side wall 43, so that the second optical element 30 and the spaced-apart surface 41 The optical axis of the second optical element 30 is aligned with the optical axis of the first optical element 20. [0025] [0024] [0024] [0025] The second segment 443b and the optical axis 〇〇, the degree of acute angle formed by 6 〇. $ 2 $70, the degree of the acute angle formed by the third segment 443c and the optical axis 00' is 20 ~ 3^30°. Thus, the tip end of the spacer ring 40 can be made too sharp to be easily formed. The spacer ring and the lens module having the spacer ring have a first side wall and a second side wall forming a sharp corner at a vertex, and the sharp angle is in a range of degrees to degrees, and the spacer ring is at the angle It is easy to form and is not easy to produce burrs, and it can ensure that the inner diameter of the spacer ring is more accurate after molding. In summary, the present invention has indeed met the requirements of the invention patent, and the patent claim is legally provided. However, the above S Hai is only a preferred embodiment of the present invention, and the scope of the patent application of the present invention cannot be limited thereby. Equivalent modifications or variations made by those skilled in the art to 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 a cross-sectional view of a camera module in accordance with a preferred embodiment of the present invention. Figure 2 is an enlarged view of the weir portion of the spacer ring of Figure 1. [Major component symbol description] Lens module 098140759 Form number Α0101 Page 8 of 13 page 0982069985-0 100 10 201118449 [0026] Lens barrel [0027] Imaging side [0028] Opening side [0029] First optical element [0030] Second optical element [0031] spacer ring [0032] first surface 〇 [0033] second surface [0034] outer side wall • [0035] inner side wall [0036] first side wall [0037] second side wall q [0038] Third side wall [0039] first paragraph [0040] second paragraph [0041] third paragraph
110 120 20 30 40 41 42 43 44 441 442 443 443a 443b 443c 098140759 表單編號A0101 第9頁/共13頁 0982069985-0110 120 20 30 40 41 42 43 44 441 442 443 443a 443b 443c 098140759 Form number A0101 Page 9 of 13 0982069985-0