200903065 九、發明說明： 【發明所屬之技術領域】 本發明涉及光學領域，尤其涉及一種鏡頭模組。 【先前技術】 隨著電子產品多功能化之發展，鏡頭模組於行動電 冶、筆§己本電腦、數位相機、個人數位助理等消費性電子 產品中得到廣泛應用。人們於追求多功能化之同時，也希 望電子產品具有優良之影像效果，即，需要鏡頭模組具有 而品質之成像品質。200903065 IX. Description of the Invention: [Technical Field] The present invention relates to the field of optics, and in particular to a lens module. [Prior Art] With the development of multi-functional electronic products, the lens module has been widely used in consumer electronic products such as mobile power, pen § computer, digital camera, and personal digital assistant. While pursuing multi-functionality, people also hope that electronic products have excellent image effects, that is, they require the quality of the lens module.
Takano, Η 發表於 1995 年 2 月之《Consumer mect_ics》 上之篇名為《Two-phase direct-drive motor built into a camcorders zoom lens barrel》文章中，揭示了—種鏡頭模 組，其具有可伸縮鏡頭，同時具有結構緊湊之優點。如圖2 所示，先前技術之一種鏡頭模組2〇〇包括一個鏡筒221，及 設置於鏡筒21内之一第一鏡片222、第一間隔環223等。 該鏡頭模組200内具有之複數光學元件通常沿鏡筒221軸 線方=裝設，以實現設計光學性能，達到預定成像品質。 、’且裝％，通常係採用將數個光學元件依次裝置於鏡筒中。 由於鏡片222僅有側面與鏡筒221内壁接觸並固定，通常 需要垂直組裝入鏡筒221。然，由於鏡片222之外徑與鏡筒 内拴相§，鏡片222側面與鏡筒221内壁存在摩擦力，故 於組裝時，鏡片222從鏡筒上方裝入鏡筒底部之整個過程 都存在由於摩擦導致組裝不易之困難，並且由於摩擦，鏡 片222很容易發生歪斜，從而影響整個鏡頭模組2⑻之組 200903065 裝效率及成像品質，造成鏡頭模組2〇 不但降低了鏡頭模組之組裝良率，而且=不良口口。如此 模組之製造成本。而且大鴨度增加了鏡頭 因此，有必要提供一種組裝效率高， 之鏡頭模組。 且鏡片不易正斜 【發明内容】 有鑒於此，提供一種組裝效率古 鏡頭模組實為必要。 且鏡片不易歪斜之 鏡種鏡頭模組，其包括—個鏡筒及設於該 -鏡片勺括/ 該鏡筒包括—底部及-内壁，該第 週邊於㈣心之光學部、-位於該鏡片中心 g先子邛及面對鏡筒内壁之側 井擧邱目女 , 发弟鏡片之非 階梯狀環體，該鏡筒之底部自㈣延仲出一 丨白梯狀凸台，該第一鏡片 凸日啦人 乃心丨白梯狀％體與該鏡筒之階梯狀 凸σ相配合，以使第一鏡片固定於 側部端面與鏡筒内壁存在間隙。、詞内，該第一鏡片之 該鏡頭模組之第一镑g , ^ , 片側邛柒面與鏡筒内壁存在間 隙，因此於組裝之時，由上往 者 ^ΰ 1 鏡筒底部之時，老^田弟—鏡片逛沒有到達 右去- 不存在由於摩擦而組裝不易之困難。只 環h邮〜， 處之時’第一鏡片階梯狀 衣體之β刀側面與鏡筒底部之 觸，而產生座快乂丄 狀凸口之侧面才有相接 此，了女士仏。但由於這個摩擦面發生之距離較短，因 了大大F牛低發生組裝歪斜之幾率，並且，由於從上 又有摩擦’故可較大幅度地提高組裝效率。 200903065 .相較於先前技術，本發明提供之鏡頭模組具有如下優 =壯待組裳鏡片可方便地組製人鏡筒，提高了鏡頭模組之 、’、衣欢率，並且，大大減少了鏡片組裝歪斜之幾率，保證 了鏡碩板組之成像品質，提升了鏡頭模組之組裝良率，降 低了鏡頭模組之製造成本。 【貫施方式】 下面將結合附圖，對本發明實施例作進一步之詳細說 明參閱圖本發明實施例提供之鏡頭模組100包括一 個鏡筒10、一第一鏡片20及複數光學元件。本實施例中， 數光學元件包括第-間隔環30、第二鏡片40、第二間 50及濾光片6〇。該第一鏡片2〇及第二鏡片可以係 每鏡片或塑膠鏡片。第—間隔環％用於保持第_鏡片 々、弟二鏡片4〇間之距離，第二間隔環50用於保持第二 1兄片40及濾光片6〇間之距離。 —/鏡筒一 10為圓筒體，其内部具有收容空間用以收容第 鏡片2Q數光學元件。鏡筒1G具有相對之鏡筒内壁 該鏡筒㈣12”有螺紋（圖未示） 部;、二:未示）配合組裝。該鏡筒10具有-鏡筒底 立於鏡同内壁11靠近鏡頭模組100物側之一端，用 於穩定支撐第一鏡片20。 ^用 。亥第—鏡片20包括—位於鏡片中心之 心週邊之非光學部22和—面對鏡筒内… σ Μ學部21用於成像中實現-定之光學效果，而 7 200903065 非光學部22於成像過程中並不參與 丄 -一側部端面231，其對著鏡筒1Q之° #側部23具有 .存在間隙。也就是說，該第一鏡 土 U ’且與内壁Π 小於鏡筒10之内徑。 之側部23處之外徑 該第一鏡片20之非光學部22農 該第-鏡片20之階梯狀環體24具有―：：梯狀環體24’ 第—鏡片20固定於鏡筒1〇中。 έ面241’用於將 梯狀f也，該鏡筒1〇之底部13自内壁11延伸出^ 梯二台14 ’此階梯狀凸台14為圓環形，其可：乂 m與第-鏡片2。階梯狀環體2有二^^ 密結合，以使第-鏡片2〇固定於=:面中241相對，且緊 卜該第-鏡片20之卡固面24 二本貫施例 10之階梯狀凸台14之卡合面141卢兄片外從寺於該鏡筒 一鏡片20 士 处之鏡同内徑，這樣，第 i / 可與鏡筒1Q之卡^ π ^ 接觸，達到固定第一鏡片20之效果。 不山 ::實施：中，第—鏡片2〇僅有部分側面(卡固Takano, Η, published in the February 1995 issue of "Consumer mect_ics", entitled "Two-phase direct-drive motor built into a camcorders zoom lens barrel", reveals a lens module that is scalable The lens has the advantage of compact structure. As shown in FIG. 2, a lens module 2 of the prior art includes a lens barrel 221, and a first lens 222, a first spacer ring 223, and the like disposed in the lens barrel 21. The plurality of optical components included in the lens module 200 are typically mounted along the axis of the lens barrel 221 to achieve design optical performance to achieve a predetermined imaging quality. And %, usually by using several optical elements in sequence in the lens barrel. Since the lens 222 has only the side surface in contact with and fixed to the inner wall of the lens barrel 221, it is usually necessary to vertically fit the lens barrel 221. However, since the outer diameter of the lens 222 is opposite to the inner diameter of the lens barrel, and the side surface of the lens 222 has a frictional force with the inner wall of the lens barrel 221, the entire process of loading the lens 222 from the top of the lens barrel into the bottom of the lens barrel during assembly is due to Friction causes difficulty in assembly, and due to friction, the lens 222 is prone to skew, which affects the assembly efficiency and image quality of the entire lens module 2 (8) 200903065, resulting in the lens module 2 not only reducing the assembly yield of the lens module. And = bad mouth. The manufacturing cost of such a module. Moreover, the height of the duck has increased the lens. Therefore, it is necessary to provide a lens module with high assembly efficiency. Moreover, the lens is not easily inclined. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide an assembly efficiency ancient lens module. And a mirror lens module that is not easy to be tilted, comprising: a lens barrel and the lens barrel included in the lens barrel, the bottom portion and the inner wall, the first periphery of the (4) optical portion of the heart, the lens is located at the lens The center g first son and the side well facing the inner wall of the lens barrel lift the Qiumu female, the non-stepped ring body of the brother lens, the bottom of the lens barrel from the (four) extension of a white ladder-shaped boss, the first The lens is convex and the human body is matched with the stepped protrusion σ of the lens barrel so that the first lens is fixed to the side end surface and there is a gap between the side end surface and the inner wall of the lens barrel. In the word, the first pound g, ^ of the lens module of the first lens has a gap between the side surface of the lens and the inner wall of the lens barrel, so at the time of assembly, from the top to the bottom of the lens barrel , old ^ Tiandi - the lens does not reach the right to go - there is no difficulty in assembly due to friction. Only the ring h mail ~, at the time of the 'first lens stepped body of the β knife side and the bottom of the lens barrel, and the side of the seat is fast-shaped convex mouth to meet, this lady. However, since the friction surface occurs at a short distance, the assembly probability is greatly increased due to the low F-low, and the assembly efficiency is greatly improved due to friction from above. 200903065. Compared with the prior art, the lens module provided by the present invention has the following advantages: the group of lenses is convenient to form a human lens barrel, which improves the lens module, 'and the clothing rate, and greatly reduces The probability of lens assembly skewing ensures the imaging quality of the mirror group, improves the assembly yield of the lens module, and reduces the manufacturing cost of the lens module. The lens module 100 according to an embodiment of the present invention includes a lens barrel 10, a first lens 20, and a plurality of optical elements. In this embodiment, the number optical element includes a first spacer ring 30, a second lens 40, a second interval 50, and a filter 6〇. The first lens 2 and the second lens may be per lens or plastic lens. The first spacer ring is used to maintain the distance between the first lens and the second lens 4, and the second spacer ring 50 is used to maintain the distance between the second lens 40 and the filter 6. The lens barrel 10 is a cylindrical body having a housing space for receiving the second lens optical element of the first lens. The lens barrel 1G has a mirrored inner wall of the lens barrel (four) 12" threaded (not shown); and two: not shown. The lens barrel 10 has a barrel bottom standing on the mirror and the inner wall 11 near the lens mold. One end of the object side of the group 100 is used for stably supporting the first lens 20. The lens is included in the non-optical portion 22 around the center of the center of the lens and facing the inside of the lens barrel. The optical effect is achieved in the imaging, and the 7 200903065 non-optical portion 22 does not participate in the 丄-side end face 231 during the imaging process, which has a gap to the side portion 23 of the lens barrel 1Q. The first mirror soil U' and the inner wall Π are smaller than the inner diameter of the lens barrel 10. The outer diameter of the side portion 23 of the first lens 20 is non-optical portion 22 of the first lens 20 and the stepped ring body of the first lens 20 24 has a ―:: ladder-shaped ring body 24'. The first lens 20 is fixed in the lens barrel 1 。. The έ surface 241 ′ is used to extend the ladder shape f, and the bottom portion 13 of the lens barrel 1 延伸 extends from the inner wall 11 The two 14' stepped bosses 14 are annular, which can be: 乂m and the first lens 2. The stepped ring body 2 is combined with the two to make the first The sheet 2〇 is fixed in the =: face 241 opposite, and the clamping surface 24 of the first lens 20 is tightly coupled to the engaging surface 141 of the stepped boss 14 of the embodiment 10, and the brother is outside the temple. The lens of the lens barrel 20 is the same as the inner diameter of the lens, so that the i / can be contacted with the card π ^ of the lens barrel 1Q to achieve the effect of fixing the first lens 20. No:: implementation: medium, first lens 2〇 only part of the side (clamped
=7二 相接觸，這樣，可減少摩擦面積J=7 two-phase contact, thus reducing the friction area J
而減^組裝歪斜之幾率。並且，由於第—鏡片加之侧部U 於鏡向1〇之内徑’故组裝時，第-鏡片20由 ^鏡筒H)’僅在達到鏡筒1G底部13之階梯狀凸 錢觸"日^鏡片才與鏡筒1G内壁有摩擦，㈣前段都沒 有接觸，㈣，組裝起來很容易，不存在組人困難之問題。 於本貫施例中，該第一鏡片2〇之階梯狀環體以之卡 200903065 固面241之高度大於該鏡筒1〇之階梯狀凸台i4之卡合面 -141之问度。第一鏡片20與鏡筒1〇底部13緊密接觸，這 .樣，可起到更穩定地固定該第一鏡片2〇之作用。當然，此 卡固面241之高度也可等於或小於該卡合面141之高度。 。亥第鏡片20與鏡筒10之底部13也可不接觸，僅靠第一 鏡片20之卡固面241與該鏡筒1〇之卡合面i4i之緊密配 合即可固定該鏡片。 該鏡頭模組i 0 〇之第二鏡片4 0具有一階梯狀環體4 i， 其與該第一鏡片20之之階梯狀環體24相配合，以固定第 二鏡片40。於本實施例中，該第二鏡片4〇之階梯狀環體 41與該第一鏡片2〇之之階梯狀環體以互相卡合’卡合處 41之兩個面係緊密接觸。 該第二鏡片4〇進一步包括一面對鏡筒内壁之側部 42 „亥側部42具有一側部端面421，其對著鏡筒1〇之内壁 11，且與内壁11存在間隙。也就是說，該第二鏡片20之 側部42處之外徑小於鏡筒1〇之内徑。這樣，該第二鏡片 可通過該階梯狀環體41與該第—鏡片2〇相互卡合固 疋，而該第二鏡片40與鏡筒1〇内壁u沒有接觸，就避免 了組裝時之摩擦阻力問題，因此更便於組裝，且只要第— 鏡片20沒有組裝歪斜，第二鏡片4〇也不會組 ，本實施例之鏡頭模組包括兩個鏡片，^以理解， 遇可根據這-原理疊加第三、第四鏡片等，其餘各鏡片均 了設置為包含一階梯狀環體之結構’通過鏡片之部分側面 舁另一鏡片互相卡合，而與鏡筒内壁存在間隔這一構造， 200903065 來達到與鏡筒内壁無摩擦，從而實現便於組裝及避免組裝 歪斜之目的。 5玄鏡頭模址100包括至少一個設於該第一鏡片和第二 鏡片間之間隔環，該間隔環設於兩個鏡片之階梯狀環體内 側’用於間隔兩鏡片。 °亥鏡頭模組1 〇〇還可包括至少一個設於第一鏡片和第 一鏡片間之光圈片，該光圈片設於相鄰兩個鏡片之階梯狀 環體内側。 該鏡頭模組1〇0還包括一個紅外戴止濾光片6〇，能夠 阻止紅外光通過。 5玄各鏡片之階梯狀環體和該鏡筒1〇之階梯狀凸台工4 都可通過-體成型之方式製成。該鏡筒1()之之材料通常為 樹脂。 . 、 本實施例中’該階梯狀凸台14及鏡筒1Q均為樹脂， 故可一體成型形成該鏡筒1〇。 組裝該鏡頭模組100時，先將第一鏡片20組裳於鏡筒 10之階梯狀凸台14内側，再依次將第—間隔環、第二 二:隔環50、濾光片60等複數光學元件組ί 定同0内。各光學元件之間可採用膠水將各元件占合固 由於除第-鏡片外’每—鏡片與鏡筒 隙：因此不存在由於摩擦而組入不易之困自，且2 摩擦’自然也不存在由於摩擦會組裝歪之 二有 模組之第-鏡片之側部端面與鏡筒内壁存在 10 200903065 裝之時，由上往下，當第一鏡片還沒有到達鏡筒底部之 .時，都不存在由於摩擦而組裝不易之困難。只有當到達铲 .筒底部之階梯狀凸台處之時’第—鏡片階梯狀環體之部= 側面與鏡筒底部之階梯狀凸台之侧面才有相互接觸，而= 生摩擦。但由於這個摩擦面發生之距離較短，因此，可大 $降低發生，裝歪斜之幾率，並且’由於從上往下沒；摩 擦:故可較高幅度地提高組裝效率。並且，只要第—個: 片沒有歪斜，後面鏡片都不會歪斜。 本發明提供之鏡頭模組具有如下優點：待組裝鏡片可 方便地組裝入鏡筒，提高了鏡頭模組之組裝效率；並且， 大=減少了鏡片組裝歪斜之幾率，保證了鏡頭模組之成像 品質，提升了鏡頭模組之組裝良率，降低了鏡頭模組 綜上所述’本發㈣已符合發明專利之要件，遂依法 ，出，财請。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… 技藝之人士援依本發明之精神所作之等效㈣或變:，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明實施例提供之鏡頭模组之剖視圖。 圖2係先g技術之鏡頭模組之剖視圖。 【主要元件符號說明】 10,221 12 鏡頭模組 100，200 鏡筒 内壁 11 外壁 11 200903065 底部 卡合面 光學部 側部 階梯狀環體 第一間隔環 第二間隔環 13 階梯狀凸台 14 141 第一鏡片 20 ， 222 21 非光學部 22 23，42 侧部端面 231 ， 421 24，41 卡固面 241 30 ， 223 ^ 一 μ 弟-—鏡月 40 50 濾光片 60 12And reduce the probability of assembling the skew. Moreover, since the first lens is assembled with the side surface U of the lens at the inner side of the mirror, the first lens 20 is formed by the lens barrel H)' only at the bottom of the lens barrel 1G. The lens is rubbed against the inner wall of the lens barrel 1G, and (4) there is no contact in the front section. (4) It is easy to assemble, and there is no problem of difficulty for the group. In the present embodiment, the stepped ring of the first lens 2 is used for the card 200903065. The height of the solid surface 241 is greater than the engagement surface -141 of the stepped boss i4 of the lens barrel 1 . The first lens 20 is in close contact with the bottom portion 13 of the lens barrel 1 so that the first lens 2 can be more stably fixed. Of course, the height of the fastening surface 241 can also be equal to or less than the height of the engagement surface 141. . The second lens 20 and the bottom portion 13 of the lens barrel 10 may not be in contact with each other, and the lens may be fixed only by the close fit of the fastening surface 241 of the first lens 20 and the engagement surface i4i of the lens barrel 1〇. The second lens 40 of the lens module i 0 has a stepped ring body 4 i that cooperates with the stepped ring body 24 of the first lens 20 to fix the second lens 40. In this embodiment, the stepped ring body 41 of the second lens 4 and the stepped ring body of the first lens 2 are in close contact with each other by the two faces of the engaging portion 41. The second lens 4 further includes a side portion 42 facing the inner wall of the lens barrel. The side portion 42 has a side end surface 421 which faces the inner wall 11 of the lens barrel 1 and has a gap with the inner wall 11. The outer diameter of the side portion 42 of the second lens 20 is smaller than the inner diameter of the lens barrel 1〇. Thus, the second lens can be engaged with the first lens 2 through the stepped ring body 41. When the second lens 40 is not in contact with the inner wall u of the lens barrel 1 , the problem of frictional resistance during assembly is avoided, so that assembly is more convenient, and as long as the first lens 20 is not assembled, the second lens 4 will not be assembled. The lens module of the embodiment includes two lenses, and it is understood that the third and fourth lenses can be superimposed according to the principle, and the other lenses are all arranged to include a structure of a stepped ring. Part of the side of the lens and the other lens are engaged with each other, and there is a space between the inner wall of the lens barrel, 200903065 to achieve no friction with the inner wall of the lens barrel, thereby facilitating assembly and avoiding assembly skew. Including at least one located in the first a spacer ring between the lens and the second lens, the spacer ring is disposed on the inner side of the stepped ring body of the two lenses for spacing the two lenses. The lens module 1 can also include at least one disposed on the first lens and An aperture plate between the first lenses, the aperture plate is disposed inside the stepped ring body of the adjacent two lenses. The lens module 1〇0 further includes an infrared wear filter 6〇, which can block the passage of infrared light. 5 stepped ring body of each lens and stepped boss 4 of the lens barrel 1 can be formed by body molding. The material of the lens barrel 1 () is usually resin. In the example, the stepped boss 14 and the lens barrel 1Q are both resin, so that the lens barrel 1 can be integrally formed. When the lens module 100 is assembled, the first lens 20 is first placed on the step of the lens barrel 10. Inside the protrusion 14 , the plurality of optical element groups such as the first spacer ring, the second two: the spacer ring 50, and the filter 60 are sequentially determined to be the same as 0. Each of the optical elements can be glued to occupy the components. Solid because each lens except the first lens - lens and lens barrel gap: therefore there is no friction due to Easy to sleep, and 2 friction 'naturally does not exist due to friction will assemble the second part of the module - the side end of the lens and the inner wall of the lens barrel 10 200903065 installed, from top to bottom, when the first When the lens has not reached the bottom of the lens barrel, there is no difficulty in assembling due to friction. Only when it reaches the stepped boss at the bottom of the shovel tube, the part of the first step of the stepped lens ring = side and The sides of the stepped bosses at the bottom of the lens barrel are in contact with each other, and = friction, but because the friction surface occurs at a shorter distance, it can be reduced by a large amount, the probability of being skewed, and 'from the top to the top No; friction: Therefore, the assembly efficiency can be improved to a higher extent. Moreover, as long as the first: the sheet is not skewed, the rear lens will not be skewed. The lens module provided by the invention has the following advantages: the lens to be assembled can be conveniently assembled into the lens barrel, which improves the assembly efficiency of the lens module; and, the large = reduces the probability of lens assembly skew, and ensures the imaging of the lens module The quality has improved the assembly yield of the lens module, and reduced the lens module. The above-mentioned (4) has met the requirements of the invention patent, and is legally, out, and financial. 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. The equivalents (4) or variations of the skilled person in accordance with the spirit of the present invention are intended to be included in the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a lens module according to an embodiment of the present invention. Figure 2 is a cross-sectional view of the lens module of the first g technology. [Main component symbol description] 10,221 12 lens module 100,200 lens barrel inner wall 11 outer wall 11 200903065 bottom engagement surface optical portion side stepped ring body first spacer ring second spacer ring 13 stepped boss 14 141 first Lens 20, 222 21 non-optical portion 22 23, 42 side end surface 231, 421 24, 41 fastening surface 241 30, 223 ^ a μ brother - mirror month 40 50 filter 60 12