201102688 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及攝像領域，尤其涉及一種鏡頭模組及該鏡頭 模組之組裝方法。 [先前技術】 [0002] 現在行動電話數位相機之應用已日漸普及，人們對其性 價比要求越來越高，為降低製造成本，必須提升關鍵零 70件製程’以提升製程良率。行動電話數位相機鏡頭模 0 組便係一關鍵零元件，其包含塑膠鏡片、玻璃鏡片、間 隔環（Spacer)、間隔環（Soina)、紅外截止濾光片（ IR-Cut Filter)、鏡筒（Barrei)等組件。一般光學廠 面臨最大之問題便係於組裝:良率上，因為只要於組裝時 有一元件偏差一點點便會造成整個鏡頭模組光學性能降 低。 [0003] 常見之鏡頭模組包括一鏡筒、沿鏡筒之物侧方向依次設 於鏡筒中之第一鏡片、間隔環、第二鏡片、間隔環及紅 〇 外截止濾光片。該鏡頭模緣之組裝方式為依序將第一鏡 片、間隔環、第二鏡片、間隔環及紅外戴止濾光片由鏡 筒像侧廢進放入鏡筒中。 [0004] 惟，該組裝方式需等全部元件組裝完後，利用光學測試 系統量測才能知道此產品有無因為鏡片偏心（即，鏡片 光軸偏’離鏡筒中心軸而造成之鏡片偏心），而造成光學 性質下降，且知道後無法補救只能丟棄，導致組裝良率 無法有效提升，鏡頭模組製造成本無法降低。 【發明内容】 098122487 表單編號A0101 第3頁/共14頁 0982038181-0 201102688 _5]冑繁於此，有必要提供一種具有較低製造成本之鏡頭模 組及此夠降低鏡頭模組製造成本之鏡頭模組組裝方法。 _]-種鏡頭模組，其包括一鏡筒及至少—設於該鏡筒中之 鏡片，該鏡筒之筒壁上設有至少一通孔，該至少一鏡片 周緣設有一缺口，該缺口與該通孔相對應。 [0007] 一種鏡頭模組組裝方法，其包括以下步驟：提供一鏡筒 及至少一鏡片’該鏡筒之筒壁上設有至少一通孔，該至 少一鏡片周緣設有—缺口；將該至少一鏡片置入鏡筒中 ’並使該缺口與該通孔杻對應；測試錄片是否偏心；若 . : ..... . .. . . 是’用細棒插入通孔中，輕觸相應鏡片缺口之側面，以 撥動鏡片，直至鏡片光轴與鍊筒中心軸同軸。 [0008] 該鏡頭模組中之鏡筒之筒壁設有通孔，該鏡片周緣設有 缺口，該缺口與該通孔相對應。於後續之鏡頭模組測試 過程中，若發現鏡頭模組之鏡片偏心，則可用細棒等器 件插入通孔中，撥動鏡片，直矣鏡Μ光袖與鏡筒中心軸 同軸。如此，可以將稍微有偏心之鏡頭模組救回來，從 而有效提升組裝良率，進而降低镜頭模組製造成本。 【實施方式】 [0009] 下面將結合附圖，對本發明作進一步之詳細說明。 [0010] 請參閱圖1、圖2及圖3，本發明之第一實施例提供之一種 鏡頭模組20，其包括一具有收容腔212之鏡筒21及沿鏡筒 21之物側方向依次收容於該收容腔212中之第一鏡片22、 間隔環23、第二鏡片24、間隔環25及第三鏡片26。 [0011] 該鏡筒21之筒壁上設有至少一通孔214。本實施例中’該 098122487 表單編號Α0101 第4頁/共14頁 0982038181-0 201102688 鏡筒21之筒壁圓週方向上間隔設有三個通孔214。本實施 例中，該三個通孔214均為形狀相同之沿鏡筒21之軸向延 伸之長條形孔。 [0012] ❹ Ο 該第一鏡片22具有一位於其中心之光學部221及一位於該 光學部221周緣之非光學部222，該非光學部222具有一 缺口 223。該缺口 223設於該非光學部222周緣，其由一 面向第一鏡片22之徑向方向之正面2231及兩個面向第一 鏡片22圓週[全文修改]方向之侧面2232、2233圍成。該 第二鏡片24及第三鏡片26具有與該第一鏡片22相似之結 構。該第二鏡片24具有一位於其中心之光學部241及一位 於該光學部241周緣之非光學部242，該非光學部242具 有一缺口 243。該缺口 243設於該非光學部242周緣，其 由一面向第二鏡片24之徑向方向之正面2431及兩個面向 第二鏡片24圓週方向之侧面2432、2433圍成。該第三鏡 片26具有一位於其中心之光學部261及一位於該光學部 261周緣之非光學部262，該非光學部262具有一缺口 263 。該缺口 263設於該非光學部262周緣。本實施例中，該 第一鏡片22之缺口 223、第二鏡片24之缺口 243及第三鏡 片26之缺口 263沿鏡筒21軸向方向之長度相同，且均等於 第一鏡片22、間隔環23、第二鏡片24、間隔環25及第三 鏡片26之厚度之和。 [0013] 當然，該該第一鏡片22之缺口 223、第二鏡片24之缺口 243及第三鏡片26之缺口 263沿鏡筒21軸向方向之長度亦 可以大於或小於第一鏡片22、間隔環23、第二鏡片24、 間隔環25及第三鏡片26之厚度之和，只要任一缺口可與 098122487 表單編號Α0101 第5頁/共14頁 0982038181-0 201102688 一通孔連通即可。 [0014] 該第一鏡片22之缺口 223、第二鏡片24之缺口 243及第三 鏡片26之缺口 263沿鏡筒21圓週方向依次錯開，使得一缺 口與一通孔相連通。該缺口 223、243、263均為弧形缺 口。優選地，該第三鏡片26上還鍍有一層紅外濾光膜27 ，能夠阻止紅外光穿過。 [0015] 當然，若鏡筒21僅有一通孔214時，該第一鏡片22之缺口 223、第二鏡片24之缺口 243及第三鏡片26之缺口 263可 以均與該通孔214相連通。 [0016] 請參閱圖4，本發明第二實施例提供之一種鏡頭模組3〇， 其與該鏡頭模組20相似，其包括一鏡筒31及沿鏡筒31之 物侧方向依次設於鏡筒31中之第一鏡片32、間隔環33、 第二鏡片34、間隔環35及第三鏡片36。該鏡筒31之筒壁 設有三個通孔313、314及315。該第一鏡片32、第二鏡 片34及第三鏡片36分別具有一缺口 323 < 343及363。該 三個通孔313、314及315分別與#口 323、343及363相 連通。該鏡頭模組30與鏡頭模組20之區別於於，該三個 通孔313、314及31 5沿鏡筒31轴向方向之長度依次減小 〇 [0017] 本發明實施例還提供了一種鏡頭模組組裝方法，請參閱 圖1和圖2，其包括以下步驟：提供一鏡筒21及複數鏡片 22、24、26，該複數鏡片22、24、26分別包括一位於鏡 片中心之光學部221、241、261及一位於該光學部周緣 之非光學部222、242、262 ’該非光學部222、242、 098122487 表單編號A0101 第6頁/共14頁 0982038181-0 201102688 262分別具有—缺σ 223 '⑷⑽，該缺口如、⑽ 263由面向該鏡片之徑向方向之正面及兩個面向鏡片 圓週方向之側面圍成；從該鏡筒21之像側將該複數鏡片 26依-人置入鏡筒21中，且一缺口與一通孔相連 通0 [0018] [0019] Ο201102688 VI. Description of the Invention: [Technical Field] The present invention relates to the field of imaging, and in particular to a lens module and an assembly method of the lens module. [Prior Art] [0002] Nowadays, the application of mobile phone digital cameras has become more and more popular, and people are demanding higher and higher price ratios. In order to reduce manufacturing costs, it is necessary to upgrade the key zero-yield process to improve the process yield. The mobile phone digital camera lens module 0 is a key component, including plastic lens, glass lens, spacer, space ring (Soina), infrared cut filter (IR-Cut Filter), lens barrel ( Barrei) and other components. The biggest problem facing the general optical factory is assembly: the yield, because there is a component deviation in assembly that will cause the optical performance of the entire lens module to be reduced. [0003] A common lens module includes a lens barrel, a first lens sequentially disposed in the lens barrel along the object side of the lens barrel, a spacer ring, a second lens, a spacer ring, and a red outer cut filter. The lens module is assembled by sequentially disposing the first lens, the spacer ring, the second lens, the spacer ring and the infrared wear filter into the lens barrel from the image side of the lens. [0004] However, the assembly method needs to wait for all the components to be assembled, and the optical test system can be used to measure whether the product is eccentric (ie, the optical axis of the lens is off-centered from the central axis of the lens barrel). As a result, the optical properties are degraded, and after being known, it cannot be remedied and can only be discarded, resulting in an inability to effectively improve the assembly yield, and the manufacturing cost of the lens module cannot be reduced. SUMMARY OF THE INVENTION 098122487 Form No. A0101 Page 3 of 14 0982038181-0 201102688 _5] In this case, it is necessary to provide a lens module with lower manufacturing cost and a lens which can reduce the manufacturing cost of the lens module. Module assembly method. a lens module comprising a lens barrel and at least a lens disposed in the lens barrel, the barrel wall of the lens barrel being provided with at least one through hole, the at least one lens periphery being provided with a notch, the gap and the The through holes correspond. [0007] A lens module assembly method includes the steps of: providing a lens barrel and at least one lens, wherein at least one through hole is formed in a wall of the lens barrel, and the at least one lens periphery is provided with a notch; A lens is placed in the lens barrel 'and the gap corresponds to the through hole ;; whether the test recording is eccentric; if: ..... . . . . . is 'insert the thin hole into the through hole, touch the corresponding The side of the lens notch is to move the lens until the optical axis of the lens is coaxial with the central axis of the chain. [0008] The lens barrel of the lens module is provided with a through hole, and a peripheral edge of the lens is provided with a notch, and the notch corresponds to the through hole. During the subsequent lens module test, if the lens of the lens module is found to be eccentric, a device such as a thin rod can be inserted into the through hole, and the lens is rotated, and the straight sleeve of the lens is coaxial with the central axis of the lens barrel. In this way, a slightly eccentric lens module can be rescued, thereby effectively improving the assembly yield and thereby reducing the manufacturing cost of the lens module. [Embodiment] The present invention will be further described in detail below with reference to the accompanying drawings. Referring to FIG. 1 , FIG. 2 and FIG. 3 , a lens module 20 according to a first embodiment of the present invention includes a lens barrel 21 having a receiving cavity 212 and a direction along the object side of the lens barrel 21 . The first lens 22, the spacer ring 23, the second lens 24, the spacer ring 25 and the third lens 26 are accommodated in the receiving cavity 212. [0011] At least one through hole 214 is defined in the wall of the lens barrel 21. In the present embodiment, the 098122487 form number Α0101, 4th page, or 14th page 0982038181-0 201102688 is provided with three through holes 214 in the circumferential direction of the cylinder wall of the lens barrel 21. In the embodiment, the three through holes 214 are all elongated holes of the same shape extending in the axial direction of the lens barrel 21. [0012] The first lens 22 has an optical portion 221 at its center and a non-optical portion 222 at the periphery of the optical portion 221. The non-optical portion 222 has a notch 223. The notch 223 is provided on the periphery of the non-optical portion 222, and is surrounded by a front surface 2231 facing the radial direction of the first lens 22 and two side surfaces 2232, 2233 facing the circumference of the first lens 22 [in the full-text modification] direction. The second lens 24 and the third lens 26 have a similar structure to the first lens 22. The second lens 24 has an optical portion 241 at its center and a non-optical portion 242 located at the periphery of the optical portion 241. The non-optical portion 242 has a notch 243. The notch 243 is provided on the periphery of the non-optical portion 242, and is surrounded by a front surface 2431 facing the radial direction of the second lens 24 and two side surfaces 2432, 2433 facing the circumferential direction of the second lens 24. The third lens 26 has an optical portion 261 at its center and a non-optical portion 262 located at the periphery of the optical portion 261. The non-optical portion 262 has a notch 263. The notch 263 is provided on the periphery of the non-optical portion 262. In this embodiment, the notch 223 of the first lens 22, the notch 243 of the second lens 24, and the notch 263 of the third lens 26 have the same length along the axial direction of the lens barrel 21, and are equal to the first lens 22 and the spacer ring. 23. The sum of the thicknesses of the second lens 24, the spacer ring 25 and the third lens 26. [0013] Of course, the length of the notch 223 of the first lens 22, the notch 243 of the second lens 24, and the notch 263 of the third lens 26 may be greater or smaller than the first lens 22 and the interval along the axial direction of the lens barrel 21. The sum of the thicknesses of the ring 23, the second lens 24, the spacer ring 25 and the third lens 26 can be connected to a through hole of 098122487 Form No. Α0101 Page 5/14 pages 0982038181-0 201102688. [0014] The notch 223 of the first lens 22, the notch 243 of the second lens 24, and the notch 263 of the third lens 26 are sequentially shifted in the circumferential direction of the lens barrel 21 such that a notch communicates with a through hole. The notches 223, 243, and 263 are all arcuate notches. Preferably, the third lens 26 is further coated with an infrared filter film 27 to block infrared light from passing through. [0015] Of course, if the lens barrel 21 has only one through hole 214, the notch 223 of the first lens 22, the notch 243 of the second lens 24, and the notch 263 of the third lens 26 may both communicate with the through hole 214. [0016] Referring to FIG. 4, a lens module 3A according to a second embodiment of the present invention, similar to the lens module 20, includes a lens barrel 31 and is sequentially disposed along the object side direction of the lens barrel 31. The first lens 32, the spacer ring 33, the second lens 34, the spacer ring 35 and the third lens 36 in the lens barrel 31. The barrel wall of the lens barrel 31 is provided with three through holes 313, 314 and 315. The first lens 32, the second lens 34 and the third lens 36 respectively have a notch 323 < 343 & 363. The three through holes 313, 314, and 315 are in communication with the # ports 323, 343, and 363, respectively. The lens module 30 is different from the lens module 20 in that the lengths of the three through holes 313, 314, and 315 are sequentially decreased along the axial direction of the lens barrel 31. [0017] The embodiment of the present invention further provides a For the lens module assembly method, please refer to FIG. 1 and FIG. 2, which includes the steps of: providing a lens barrel 21 and a plurality of lenses 22, 24, 26, respectively, wherein the plurality of lenses 22, 24, 26 respectively comprise an optical portion located at the center of the lens. 221, 241, 261 and a non-optical portion 222, 242, 262 located at the periphery of the optical portion. The non-optical portion 222, 242, 098122487 Form No. A0101 Page 6 / 14 pages 0982038181-0 201102688 262 respectively have a missing σ 223 '(4)(10), the notch such as (10) 263 is surrounded by a front surface facing the radial direction of the lens and two sides facing the circumferential direction of the lens; the plurality of lenses 26 are placed in the image side of the lens barrel 21 In the lens barrel 21, a notch is connected to a through hole. [0018] [0019]
[0020] G[0020] G
[0021] a鏡頭Κ組裝方法中進—步包括：於該複數鏡片^、 24 6之每兩個相鄰鏡片間置入間隔環或間隔環。 於後續之鏡頭H職過財，若發現鏡頭模組中之鏡 片 貝】可用細棒等器件插入通吟中，輕撥相應鏡片 缺之側面，直至該鏡片患轴與該鏡筒21中心轴同轴’ 而後可以從該通孔或者其他通孔對該鏡片點勝，以使該 鏡片與該鏡筒固定為一體。如此，可以將稍微有偏心之 鏡頭模組救回來’從而有效提升組裝良率，進而降低鏡 頭模組製造成本。 可以理解，對於本領域之普通技術人貴來說，可以根據 本發月之技術構思做出其他各種相應之改變與變形，而 所有這些改變錢_朗於本發”請糊範圍第之 保護範圍。 綜上所述，本發日㈣已符合發明專利之要件，遂依法提 出專利巾„广惟’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中請專利範圍。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】 098122487 表單編號Α0101 第7頁/共14頁 0982038181-0 201102688 [0022] 圖1係本發明之第一實施例提供之鏡頭模組立體組合圖。 [0023] [0024] [0025] [0026] 圖2係圖1中之鏡頭模組之立體分解圖。 圖3係沿圖1中III-III線之截面圖。 圖4係本發明之第二實施例提供之鏡頭模組之立體分解圖 【主要元件符號說明】 鏡頭模組 20 ' 30 收容腔 212 ΛΆ- Λ-/Γ 鏡茼 21 ' 31 第一鏡片 22、32 第二鏡片 24、34 第三鏡片 26、36 間隔環 23、25、33、35 通孔 214 、 313 、 314 、 315 光學部 221 、 241 、 261 非光學部 222 ' 242 ' 262 缺口 223 ' 243 ' 263 ' 323 ' 343 ' 363 正面 2231 、 2431 侧面 2232 、 2233 、 2432 、 2433 紅外濾光膜 27 098122487 表單編號A0101 第8頁/共14頁 0982038181-0[0021] A lens Κ assembly method includes: inserting a spacer ring or a spacer ring between each two adjacent lenses of the plurality of lenses ^, 24 6 . In the subsequent lens H, if you find that the lens in the lens module can be inserted into the cymbal by means of a thin rod, etc., the side of the corresponding lens is flicked until the axis of the lens is the same as the central axis of the lens barrel 21. The shaft can then be slid from the through hole or other through hole to secure the lens to the barrel. In this way, a slightly eccentric lens module can be saved back to effectively increase the assembly yield, thereby reducing the manufacturing cost of the lens module. It will be understood that various other changes and modifications may be made in accordance with the technical concept of the present month, and all such changes may be made in the scope of protection of the present invention. In summary, this issue (4) has met the requirements of the invention patent, and the patent towel „广惟’ has been described above as the preferred embodiment of the invention. range. 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 a perspective assembled view of a lens module according to a first embodiment of the present invention. FIG. 1 is a perspective view of a lens module according to a first embodiment of the present invention. [0025] FIG. 2 is an exploded perspective view of the lens module of FIG. 1. Figure 3 is a cross-sectional view taken along line III-III of Figure 1. 4 is an exploded perspective view of a lens module according to a second embodiment of the present invention. [Main component symbol description] Lens module 20 ' 30 receiving cavity 212 ΛΆ- Λ-/Γ 茼 21 ' 31 first lens 22, 32 second lens 24, 34 third lens 26, 36 spacer ring 23, 25, 33, 35 through hole 214, 313, 314, 315 optical portion 221, 241, 261 non-optical portion 222 ' 242 ' 262 notch 223 ' 243 ' 263 ' 323 ' 343 ' 363 Front 2231 , 2431 Side 2232 , 2233 , 2432 , 2433 Infrared filter 27 098122487 Form No. A0101 Page 8 / Total 14 Page 0982038181-0