201116872 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及鏡頭模組，特別涉及一種互卡式鏡片組及具 有該互卡式鏡片組的鏡頭模組。 【先前技術】 [0002] 鏡頭模組一般包括有鏡筒及組裝於鏡筒内的複數鏡片。 目前，可通過鏡筒承靠或互卡兩種方式將複數鏡片裝於 鏡筒内。 [0003] 鏡筒承靠方式是指：將鏡筒及複數鏡片精准成型以使每 個鏡片的直徑等於或略大於鏡筒内徑；然後將複數互卡 式鏡片組裝入鏡筒内，通過鏡筒與鏡片的尺寸配合或額 外的點膠固定等手段將複數鏡片固定於鏡筒内。然而， 由於各個鏡片僅與鏡筒結構配合，鏡筒承f方式組裝成 的鏡頭模組往往存在各個鏡片之間的光轴相互偏離的現 象。另外，由於受鏡筒内徑的影響較大，微小的鏡筒内 :i·: 徑公差都可能極大地惡化鏡頭模組的成像品質。 [0004] 互卡方式是指：成型複數鏡片，使得直徑較大的一鏡片 的邊緣形成一第一環狀收容部，直徑較小的一鏡片形成 一第二環狀收容部，該第二環狀收容部具有與第一環狀 收容部的内徑相匹配的外徑。兩個鏡片通過環狀收容部 尺寸配合卡合在一起，再與其他鏡片通過類似的結構配 合組裝成互卡式鏡片組後組襞入鏡筒。在鏡片成型過程 中，一般將第二環狀收容部的外徑公差控制在一定範圍 内。然而，有可能由於模具精度不高，導致第二環狀收 容部的外徑過大。外徑過大的鏡片組裝時將出現過緊配 098137879 表單編號A0101 第4頁/共16頁 0982064972-0 201116872 合或者無法組裝的狀況。當兩個鏡片過緊配合時，在兩 個鏡片相互卡合處產生應力，應力由鏡片邊緣的非光學 部傳遞至鏡片中心的光學部，導致鏡片的光學部發生形 變，從而影響成像品質。另外，相互卡合的鏡片在溫度 變化過程中將發生形變，也可能導致這些鏡片的光學部 發生形變，惡化成像品質。 【發明内容】 [0005] Ο [0006] ❹ [0007] 有鑒於此，有必要提供一種成像品質不受卡合結構影響 的互卡式鏡頭組以及具有該互卡式鏡頭組的鏡頭模組。 一種互卡式鏡片組，其包括第一鏡片及第二鏡片。該第 一鏡片及該第二鏡片皆包括具有對應光軸的光學部及圍 繞對應光學部的非光學部。該第一鏡片的非光學部與該 第二鏡片相對的表面形成有環繞該第一鏡片的光學部的 内圓周斜面，該第二鏡片的非光學部與該第一鏡片相對 的表面形成有環繞該第二鏡片的光學部的外圓周斜面， 該外圓周斜面用於抵接該内__圓周斜面。該内圓周斜面相 對第一鏡片的光學部的光軸的傾角大於該外圓周斜面相 對該第二鏡片的光學部的光軸的傾角。 一種鏡頭模組，其包括鏡筒及互卡式鏡片組。該互卡式 鏡片組包括第一鏡片及第二鏡片。該第一鏡片及該第二 鏡片皆包括具有對應光軸的光學部及圍繞對應光學部的 非光學部。該第一鏡片的非光學部與該第二鏡片相對的 表面形成有環繞該第一鏡片的光學部的内圓周斜面，該 第二鏡片的非光學部與該第一鏡片相對的表面形成有環 繞該第二鏡片的光學部的外圓周斜面，該外圓周斜面用 098137879 表單編號Α0101 第5頁/共16頁 0982064972-0 201116872 於抵接該内圓周斜面。該内圓周斜面相對第一鏡片的光 學部的光軸的傾角大於該外圓周斜面相對該第二鏡片的 光學部的光轴的傾角。 1；_8]與先μ技術比較，該互卡式鏡#組以及鏡頭模組在第一 鏡片的光學部的内圓周斜面與第二鏡片的光學部的外圓 周斜面之間具有一預留的夾角，即使外圓周斜面的直徑 過大，也忐夠避免過緊配合或者無法組裝的狀況出現。 而且當溫度變化過程中第一鏡片與第二鏡片發生形變時 ，可避免形變傳遞到第一光學部及第二光學部，從而避 免互卡式鏡片組的咸像品質遭惡化。 【實施方式】 _9] T面將結合關，對本發明作進_步的詳細說明。 酬]請參閱圖1及圖2，本發明較佳實施方式的互卡式鏡片組 1〇〇包括第一鏡片1〇及第二鏡片2〇。第—鏡片1〇及第二 鏡片20可以是塑膠或玻璃鏡片。本實施方式中第一鏡 片10及第二鏡片20都為塑灕鏡片。 [_第-鏡片1G包括具有第—光轴12的第—光學部14及圍繞 第一光學部14的第-非光學部16。第—非光學㈣朝第 二鏡片20延伸有第一凸緣18 ’第一凸緣18環繞第一光學 部14，第一凸緣18形成有内圓周斜面18s。本實施方式中 ’内圓周斜面18s從第-鏡片1{)的表面沿徑向向外傾斜。 [_帛二鏡片20包括具有第二光轴22的第二光學部24及圍繞 第：絲部24的第：非光學㈣。第：非光學部26朝第 一鏡片10延伸有第二凸緣28，第二凸緣28環繞第二光學 098137879 表單編號A0101 第6頁/共16頁 0982064972-0 201116872 部26 ’第二凸緣28形成有外圓周斜面28s。本實施方式中 ’外圓周斜面28s從第二鏡片20的表面沿徑向向内傾斜。 [0013] ❹ 〇 請結合圖3，外圓周斜面28s用於與内圓周斜面18s相互抵 接。内圓周斜面18s相對第一光軸12的傾角大於外圓周斜 面28s相對第二光軸22的傾角，使得内圓周斜面18s與外 圓周斜面28s之間具有一夾角0。具體的，夾角0的取值 介於〇· 5度至5度之間。内圓周斜面18s上沿圓周方向等距 開°又有複數凹槽18a。本實施方式中，複數凹槽的底 部的連線形成一圓周’其直徑大於内圓周斜面18s的最大 直杧。每個凹槽18效的旅面上固定設置有一彈性件18b， 且每個彈性件181)的形變方向垂直於内圓周斜面18s，彈 性件18b用於與外圓周斜面28s相互抵接，以通過彈性件 18b的恢復力來抵持第二鏡片2〇。具體的，每個彈性件 18b包括-彈菁18〇以及一固定在彈菁18〇端部的保護墊 182，彈性件18b相對凹槽18a底面的長度大於等於該内 圓周斜面183到凹槽18a底面的距離。彈菁18〇通過膠體 固疋在凹槽18a的底面上。本實施方式中彈簧則由彈 性係數較小的材料製成，以避免恢復力過大而損傷鏡片 。保護墊182的材料為海綿，其用於避免彈簧18()與第二 鏡片20硬性接觸而劃傷第二鏡片2〇。 [0014] 另外，第一非光學部16和第二非光學部別之間設置有間 隔環3〇，其用以固^第—鏡片1〇和第二鏡片2G之間的距 098137879 離’且避免第-鏡片1()和第二鏡片2G間直接硬性磨擦。 當將第-鏡片10組裝至第二鏡片20上時，由於内圖周斜 面18s與外_斜面28s之間具有所述夹角^，即使外圓 表單編號A0101 -- 第7頁/共16頁 09820( [0015] 201116872 周斜面28s的直徑具有較大的公差，内圓周斜面18s的邊 緣仍可沿著外圓周斜面28s滑動，當内圓周斜面18s的邊 緣直徑等於外圓周斜面28s的直徑時，内圓周斜面185停 止滑動，使得第一鏡片1〇與第二鏡片2〇實現相互卡合。 在此過程中’外圓周斜面28s會壓縮彈性件18b，而彈性 件18b的恢復力會均勻反作用在内圓周斜面18s上，從而 使付第一鏡片1 〇能夠更加穩定地抵持第二鏡片2 〇。 [0016] 可以理解，互卡式鏡片組1〇〇可以包括更多數量的鏡片， 每兩個相鄰的鏡片之間通過類似第一鏡片1〇與第二鏡片 20的互卡方式互卡在—起ό複數四槽1名饪也可開設在外圓 周斜面28s上，此時，彈性件,18b設置在外圓周斜面28s 上以抵持内圓周斜面18 s。： [0017] 互卡式鏡片組100在内圓周斜面18s與外圓周斜面28s之 間具有所述夾角6»，即使外圓周斜面28s的直徑過大，也 能夠避免過緊配合或者無法組裝的狀況出現。而且當溫 度變化過程中第一鏡片1〇輿第二鏡片2〇發生形變時，由 於内圓周斜面18s僅通過邊緣與外圓周斜面28s抵接，第 一鏡片10與第二鏡片20的抵接面積較小，使得第一鏡片 10與第一鏡片20之間易於相互滑動，可避免形變傳遞到 第一光學部14及第二光學部24，從而避免互卡式鏡片組 10 0的成像品質遭惡化。 [0018] 請參閱圖4，本發明較佳實施方式的鏡頭模組2〇〇包括鏡 筒300與互卡式鏡片組1〇〇。第—鏡片1〇的外徑比第二鏡 片20的外徑大，並與鏡筒3〇〇的内徑基本相同。互卡式鏡 片組100通過鏡片11〇的外徑與鏡筒3〇〇的内徑相配合卡 098137879 表單編號A0101 第8頁/共16頁 0982064972-0 201116872 設在鏡筒300内。具體地，本實施方式的鏡頭模組10還包 [0019] 括設置於鏡筒300像侧的紅外濾光片300。 可以理解，在其他實施方式中，若第二鏡片20的外徑比 第一鏡片10的外徑大，則可利用第二鏡片20的外徑與鏡 筒300的内徑相配合卡設在鏡筒300内。若互卡式鏡片組 100包括多於兩個的鏡片，則利用外徑最大的鏡片與鏡筒 300卡設。 [0020] 另外，本領域技術人員可在本發明精神内做其他變化， 〇 然，凡依據本發明精神實質所做的變化，都應包含在本 發明所要求保護的範圍之内。 [0021] 【圖式簡單說明】 _ 圖1為本發明較佳實施方式的互卡式鏡片組的分解示意圖 〇 [0022] 圖2為圖1的互卡式鏡片組的組裝示意圖。 [0023] 圖3為圖2中的互卡式鏡片組的III部分的放大圖。 〇 [0024] 圖4為本發明較佳實施方式的鏡頭模組的截面示意圖。 [0025] 【主要元件符號說明】 互卡式鏡片組100 [0026] 第一鏡片10 [0027] 第一光軸12 [0028] 第一光學部14 [0029] 第一非光學部16 098137879 表單編號A0101 第9頁/共16頁 0982064972-0 201116872 [0030] 第一凸緣1 8 [0031] 凹槽 18a [0032] 彈性件18b [0033] 内圓周斜面18s [0034] 彈簧 1 8 0 [0035] 保護墊182 [0036] 第二鏡片20 [0037] 第二光軸22 [0038] 第二光學部24 [0039] 第二非光學部26 [0040] 第二凸緣28 [0041] 外圓周斜面28s [0042] 間隔環3 0 [0043] 鏡頭模組200 [0044] 鏡筒 30 0 [0045] 夾角 0 098137879 表單編號A0101 第10頁/共16頁 0982064972-0BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens module, and more particularly to a mutual card lens group and a lens module having the same. [Prior Art] [0002] A lens module generally includes a lens barrel and a plurality of lenses assembled in the lens barrel. At present, a plurality of lenses can be mounted in the lens barrel by means of a lens barrel or a mutual card. [0003] The lens barrel bearing means that the lens barrel and the plurality of lenses are precisely formed such that the diameter of each lens is equal to or slightly larger than the inner diameter of the lens barrel; then the plurality of inter-card type lens groups are loaded into the lens barrel through the mirror The plurality of lenses are fixed in the lens barrel by means of a size matching of the barrel and the lens or an additional dispensing. However, since each lens is only engaged with the lens barrel structure, the lens module assembled by the lens barrel tends to have a deviation of the optical axes between the lenses. In addition, due to the large influence of the inner diameter of the lens barrel, the i:: diameter tolerance in the tiny lens barrel may greatly deteriorate the imaging quality of the lens module. [0004] The mutual card mode means that a plurality of lenses are formed such that an edge of a lens having a larger diameter forms a first annular receiving portion, and a lens having a smaller diameter forms a second annular receiving portion, the second ring The shape-receiving portion has an outer diameter that matches the inner diameter of the first annular housing portion. The two lenses are snap-fitted together by the annular receiving portion, and then assembled with other lenses by a similar structure to form a mutual-clip lens group, and the rear group is inserted into the lens barrel. In the lens forming process, the outer diameter tolerance of the second annular receiving portion is generally controlled within a certain range. However, there is a possibility that the outer diameter of the second annular receiving portion is excessive due to the inaccuracy of the mold. When the lens with excessively large outer diameter is assembled, it will appear too tight. 098137879 Form No. A0101 Page 4 of 16 0982064972-0 201116872 The condition of the assembly is impossible or impossible. When the two lenses are over-tightened, stress is generated when the two lenses are engaged with each other, and the stress is transmitted from the non-optical portion of the lens edge to the optical portion at the center of the lens, causing the optical portion of the lens to be deformed, thereby affecting the image quality. In addition, the lenses that are engaged with each other will be deformed during temperature changes, and the optical portions of these lenses may be deformed to deteriorate the image quality. SUMMARY OF THE INVENTION [0007] In view of the above, it is necessary to provide a mutual-card type lens group in which the imaging quality is not affected by the engagement structure and a lens module having the mutual-card type lens group. A mutual card lens set includes a first lens and a second lens. The first lens and the second lens each include an optical portion having a corresponding optical axis and a non-optical portion surrounding the corresponding optical portion. The surface of the first lens opposite to the second lens is formed with an inner circumferential slope surrounding the optical portion of the first lens, and the non-optical portion of the second lens is formed with a surface opposite to the first lens. An outer circumferential bevel of the optical portion of the second lens, the outer circumferential bevel for abutting the inner circumferential bevel. The inclination of the inner circumferential slope relative to the optical axis of the optical portion of the first lens is greater than the inclination of the outer circumferential slope relative to the optical axis of the optical portion of the second lens. A lens module includes a lens barrel and a mutual card lens group. The inter-clip lens set includes a first lens and a second lens. The first lens and the second lens each include an optical portion having a corresponding optical axis and a non-optical portion surrounding the corresponding optical portion. The surface of the first lens opposite to the second lens is formed with an inner circumferential slope surrounding the optical portion of the first lens, and the non-optical portion of the second lens is formed with a surface opposite to the first lens. An outer circumferential bevel of the optical portion of the second lens, the outer circumferential bevel abutting the inner circumferential bevel with 098137879 Form No. 1010101 5th/16 pages 098206497-2-0 201116872. The angle of inclination of the inner circumferential slope relative to the optical axis of the optical portion of the first lens is greater than the angle of inclination of the outer circumferential slope relative to the optical axis of the optical portion of the second lens. 1;_8] compared with the prior μ technology, the mutual card type mirror group and the lens module have a reserved between the inner circumferential slope of the optical portion of the first lens and the outer circumferential slope of the optical portion of the second lens The angle is such that even if the diameter of the outer circumferential bevel is too large, it is sufficient to avoid over-tightening or assembly failure. Moreover, when the first lens and the second lens are deformed during the temperature change, the deformation can be prevented from being transmitted to the first optical portion and the second optical portion, thereby preventing deterioration of the salt image quality of the inter-cable lens group. [Embodiment] _9] The T-plane will be combined and the detailed description of the present invention will be made. Referring to FIG. 1 and FIG. 2, the mutual card lens set 1 of the preferred embodiment of the present invention includes a first lens 1 〇 and a second lens 2 〇. The first lens 1 and the second lens 20 may be plastic or glass lenses. In the present embodiment, both the first lens 10 and the second lens 20 are plastic lenses. The first lens 1G includes a first optical portion 14 having a first optical axis 12 and a first non-optical portion 16 surrounding the first optical portion 14. The first-non-optical (four) second lens 20 extends with a first flange 18'. The first flange 18 surrounds the first optical portion 14, and the first flange 18 is formed with an inner circumferential slope 18s. In the present embodiment, the inner circumferential slope 18s is inclined outward in the radial direction from the surface of the first lens 1{). The second lens 20 includes a second optical portion 24 having a second optical axis 22 and a second: non-optical (four) surrounding the second wire portion 24. The non-optical portion 26 extends toward the first lens 10 with a second flange 28, and the second flange 28 surrounds the second optical 098137879. Form No. A0101 Page 6 / Total 16 Page 0982064972-0 201116872 Part 26 'Second Flange 28 is formed with an outer circumferential slope 28s. In the present embodiment, the outer circumferential slope 28s is inclined inward in the radial direction from the surface of the second lens 20. [0013] Referring to FIG. 3, the outer circumferential slope 28s is for abutting against the inner circumferential slope 18s. The inclination of the inner circumferential slope 18s with respect to the first optical axis 12 is greater than the inclination of the outer circumferential slope 28s with respect to the second optical axis 22 such that there is an angle 0 between the inner circumferential slope 18s and the outer circumferential slope 28s. Specifically, the value of the angle 0 is between 〇·5 degrees and 5 degrees. The inner circumferential slope 18s is equidistant in the circumferential direction and has a plurality of grooves 18a. In the present embodiment, the line connecting the bottoms of the plurality of grooves forms a circumference which has a diameter larger than the maximum straight diameter of the inner circumferential slope 18s. An elastic member 18b is fixedly disposed on the traveling surface of each groove 18, and the deformation direction of each elastic member 181) is perpendicular to the inner circumferential inclined surface 18s, and the elastic member 18b is used to abut against the outer circumferential inclined surface 28s to pass The restoring force of the elastic member 18b abuts against the second lens 2''. Specifically, each of the elastic members 18b includes an elastic crystal 18〇 and a protective pad 182 fixed to the end of the elastic cyanine 18a. The length of the elastic member 18b opposite to the bottom surface of the recess 18a is greater than or equal to the inner circumferential inclined surface 183 to the recess 18a. The distance from the bottom. The elastic phthalocyanine 18 is fixed to the bottom surface of the recess 18a by a colloid. In the present embodiment, the spring is made of a material having a small modulus of elasticity to avoid damage to the lens due to excessive restoring force. The material of the protective pad 182 is a sponge for preventing the spring 18 () from coming into hard contact with the second lens 20 to scratch the second lens 2 . [0014] In addition, a spacer ring 3〇 is disposed between the first non-optical portion 16 and the second non-optical portion for fixing the distance between the first lens 1〇 and the second lens 2G by 098137879 Direct hard rubbing between the first lens 1 () and the second lens 2G is avoided. When the first lens 10 is assembled to the second lens 20, since the inner angle between the inner bevel 18s and the outer bevel 28s has the angle ^, even if the outer circle form number A0101 - page 7 / total 16 pages 09820( [0015] 201116872 The diameter of the circumferential bevel 28s has a large tolerance, and the edge of the inner circumferential bevel 18s can still slide along the outer circumferential bevel 28s, when the edge diameter of the inner circumferential bevel 18s is equal to the diameter of the outer circumferential bevel 28s, The inner circumferential slope 185 stops sliding, so that the first lens 1〇 and the second lens 2〇 are engaged with each other. In the process, the outer circumferential slope 28s compresses the elastic member 18b, and the restoring force of the elastic member 18b is evenly reacted. The inner circumference slope 18s, so that the first lens 1 〇 can more stably resist the second lens 2 〇. [0016] It can be understood that the mutual card lens group 1 can include a larger number of lenses, each two The adjacent lenses are mutually clamped by a mutual card-like manner similar to the first lens 1 〇 and the second lens 20, and the plurality of slots can also be opened on the outer circumferential slope 28s. At this time, the elastic member , 18b is set on the outer circumferential slope 28s to resist The inner circumferential bevel is 18 s.: [0017] The inter-clip lens group 100 has the included angle 6» between the inner circumferential bevel 18s and the outer circumferential bevel 28s, and can avoid overtightening even if the diameter of the outer circumferential bevel 28s is too large. When the first lens 1 〇舆 the second lens 2 〇 is deformed during the temperature change, since the inner circumferential slant 18 s abuts only the edge and the outer circumferential slant 28 s, the first lens 10 and The abutting area of the second lens 20 is small, so that the first lens 10 and the first lens 20 are easy to slide each other, and the deformation is prevented from being transmitted to the first optical portion 14 and the second optical portion 24, thereby avoiding the mutual card lens. The imaging quality of the group 100 is deteriorated. [0018] Referring to FIG. 4, the lens module 2 of the preferred embodiment of the present invention includes a lens barrel 300 and a mutual-clamp lens group 1 第. The outer diameter is larger than the outer diameter of the second lens 20, and is substantially the same as the inner diameter of the lens barrel 3. The outer diameter of the lens 11 through the outer diameter of the lens 11 is matched with the inner diameter of the lens barrel 3 098137879 Form No. A0101 Page 8 / Total 16 Page 098206497 -0 201116872 is provided in the lens barrel 300. Specifically, the lens module 10 of the present embodiment further includes [0019] an infrared filter 300 disposed on the image side of the lens barrel 300. It can be understood that in other embodiments, If the outer diameter of the second lens 20 is larger than the outer diameter of the first lens 10, the outer diameter of the second lens 20 can be engaged with the inner diameter of the lens barrel 300 in the lens barrel 300. The group 100 includes more than two lenses, and the lens having the largest outer diameter is attached to the lens barrel 300. In addition, those skilled in the art can make other changes in the spirit of the invention, and all changes that are made according to the spirit of the invention should be included in the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a mutual card type lens set according to a preferred embodiment of the present invention. [0022] FIG. 2 is an assembled view of the mutual card type lens unit of FIG. 3 is an enlarged view of a portion III of the inter-clip lens group of FIG. 2. 4 is a schematic cross-sectional view of a lens module according to a preferred embodiment of the present invention. [Description of Main Component Symbols] Inter-Clip Lens Set 100 [0026] First Optical Lens [0027] First Optical Axis 12 [0028] First Optical Portion 14 [0029] First Non-Optical Portion 16 098137879 Form Number A0101 Page 9 of 16 0982064972-0 201116872 [0030] First flange 1 8 [0031] Groove 18a [0032] Elastic member 18b [0033] Inner circumferential bevel 18s [0034] Spring 1 8 0 [0035] Protective pad 182 [0036] Second lens 20 [0037] Second optical axis 22 [0038] Second optical portion 24 [0039] Second non-optical portion 26 [0040] Second flange 28 [0041] Outer circumferential bevel 28s [0042] Spacer Ring 3 [0043] Lens Module 200 [0044] Lens Tube 30 0 [0045] Angle 0 098137879 Form No. A0101 Page 10 / Total 16 Page 0982064972-0