M261702M261702
【新型所屬之技術領域】 尤其係關於一種用於數 本創作係關於一種鏡頭模組 位相機調焦之鏡頭模組。 【先前技術】 隨著數位技術之不斷發展，數位 用，特別係近年來行動電話及PDA(PersQnai 廣泛應[Technical field to which the new type belongs] In particular, it relates to a lens module for digital creation, which relates to a lens module for focusing a camera. [Previous technology] With the continuous development of digital technology, digital applications, especially mobile phones and PDAs (PersQnai widely used in recent years)
Assistant，個人數位助理）等攜帶式 裝置之…a已成為發展移動多媒體技術之一 :二與：攜，式電子裝置結合之數位相機體積較；且結構 間早，因此多採用定焦結構，即其透鏡組之焦距不變，盆 透鏡組與影像感應器之距離保持不變，如於2〇〇1年12月^、日 授權公告之專利號為0 1 202 1 1 2.1之中國大陸專利公開了一 種定焦結構之鏡頭模組，該鏡頭模組中之影 其透鏡組之焦點位置。根據透鏡成像原理，當^遠大於 透鏡焦距之情況下，成像點位於焦平面上。因此，上述之 疋焦之鏡頭模組用於拍攝遠距離景物時不會影響成像質 量，但其拍攝近距離景物時，由於物距較小，像距增大， 造成成像面並非焦平面，因此導致於焦平面上之成像不清 晰。為改善此種情況’就需要調整像距，即透鏡組與影像 感應器之距離。請參閱第一圖，於2〇〇3年2月26曰授權公告 之專利號為0 2 2 2 0 1 1 5 · 7之中國大陸專利公開了一種可調整 像距之鏡頭模組，該鏡頭模組主要包括鏡頭2 1、調焦環 22、彈性裝置23及基座24。其中鏡頭21與調焦環22通過螺Assistant (personal digital assistant) and other portable devices ... a has become one of the development of mobile multimedia technology: two and: portable, electronic devices combined digital camera volume is relatively small; and early structure, so more fixed focus structure, that is, The focal length of the lens group remains the same, and the distance between the basin lens group and the image sensor remains the same. For example, in December 2001 ^, the number of the patent issued in Japan was 0 1 202 1 1 2.1. A lens module with a fixed focus structure is provided. The shadow in the lens module is the focal position of the lens group. According to the principle of lens imaging, when ^ is far greater than the focal length of the lens, the imaging point is located on the focal plane. Therefore, the above-focused lens module does not affect the imaging quality when used to shoot long-distance scenes, but when shooting close-range scenes, the distance between the objects is smaller and the image distance increases, resulting in the imaging surface not being the focal plane. As a result, the imaging on the focal plane is not clear. In order to improve this situation, it is necessary to adjust the image distance, that is, the distance between the lens group and the image sensor. Please refer to the first figure. The patent No. 0 2 2 2 1 1 5 · 7 issued on February 26, 2003 issued a patent in Mainland China discloses a lens module with adjustable image distance. The lens The module mainly includes a lens 21, a focusing ring 22, an elastic device 23, and a base 24. The lens 21 and the focusing ring 22 are screwed
M261702 五、創作說明（2) nt::焦j22與基座24之間由彈性裝置23連接，該 调焦：22下方設有調節槽221，基座“上設有與調節槽221 :配：點241。扳動調焦環22，使其相對於基座24轉 ;土座24之凸點241與調焦環22之調節槽221之不同 :面接觸，帶動鏡頭21沿光軸方向做直線運動， 且與影:象感應器之間距。該鏡頭模組之調焦環之轉動 …月n調即槽内不同之台面上停頓，即僅能分段調焦， ί r :二::焦Ϊ度’且該鏡頭模組之結構複雜，尤其對調 “、、衣之材料要求較高，增加製造成本及難度。 組實此’提供一種調焦精度高且結構簡單之鏡頭模 【新型内容】 該鏡頭模組之 一推頂機構、 該推頂機構包 該調焦機構包 本創作之目的在於提供一種鏡頭模組 調焦精度高且結構簡單。 本創作之鏡頭模組，其包括··一鏡筒 一調焦機構及一套筒。該鏡筒内設有透鏡 括一推桿=該推桿固持於該鏡筒之外側壁吻Μ成啊倂 二，it::及：可轉動之凸輪。該套筒包括-筒狀殼 ’ ’、徑一鏡筒之外徑相匹配，該筒狀殼體之側壁設有 :口。钂鏡筒收容於該套筒内，使該推頂機構容置於該 始二之Ρ::内’該彈性兀件與該凸輪之侧緣分別作用於該 推桿之力量方向相反。 Μ &相較驾知之鏡頭模組，本創作之鏡頭模組藉由凸輪之 轉動，驅動與該凸輪側邊滑動連接的推桿，使透鏡於鏡筒 M261702 五、創作說明（3) ' 之帶動下沿光軸做直線運動，進行連續漸進之調焦，從而 k局了鏡頭模組之調焦精度；該鏡頭模組之調焦機構僅由 一彈性元件及一凸輪構成，其結構簡單。 【實施方式】 請結合參照第二圖及第四圖所示，本創作之鏡頭模組 10，包括一鏡筒12、一推頂機構13、一調焦機構14及一套 筒15。 鏡筒1 2係一圓筒，其外側壁凸設有二對稱之軸向導執 122。透鏡（圖未示）裝配並固定於該鏡筒12内。該透鏡可 為一透鏡或複數透鏡以組成具有一定焦距之透鏡組，用於 匯聚入射光線。 鏡筒1 2於遠離導執1 2 2之外側壁設有推頂機構1 3。該推 頂機構1 3包括固持部1 3 2及推桿1 3 6。固持部1 3 2係一體成型 之部件，其縱剖面呈” L，，型，包括主體1 33及平台134。主體 133緊貼於鏡筒12之外壁或與鏡筒12 —體成型，平台134水 平位於其下端。推桿136豎直固持於平台丨34底面。 調焦機構14包括彈簧142、凸輪144及轉輪148。彈簣 142二端可固持於平台134上端，另一端為自由端。凸輪144 中部設有+—通孔145，轉輪148之一底面設有一轉軸146。轉 輪148可藉由轉軸146與通孔145之配合帶動凸輪144轉動。 轉輪148之外側面環設防滑紋149。 套筒15包括一殼體152及一側蓋155。殼體152係具一定 厚度之圓筒’其内徑與鏡筒12之外徑相匹配。殼體152内側 壁設有二對稱之軸向滑槽153，用以與鏡筒12之導執122配 M261702 五、創作說明（4) 合。殼體152遠離滑槽153 —側開設有一弓形開口 154，該開 口 154頂部内側向内凹陷形成一凹槽154a，用以於鏡筒12上 下滑動時容置固持部132之主體133。側蓋155用以配合殼體 1 5 2，其裝配後於接近開口 1 5 4 —侧之邊緣可緊貼殼體1 5 2之 外壁，另一側於中部開設一通孔156，允許轉輪148之轉軸 146穿過進而連接凸輪144。 底座16上設有與套筒15下方形狀一致的開孔162，底座 16於該開孔162 —側之表層下凹形成一凹槽164，該凹槽164 之橫截面為弓形，其半徑及長度與轉輪丨48相配合。 請結合參照第三圖所示，裝配時，將轉輪1 4 8之轉軸 146穿過側蓋155之通孔156，凸輪144於側蓋155之内側藉由 通孔145固持於轉軸146，使得轉輪148可帶動凸輪144同步 轉動。 —將彈簧142 —端固持於平台134上端，將套筒15之殼體 152藉由粘膠或螺釘等方式固持於底座16上，使殼體位 於開孔162上方，弓形開口154相對於凹槽164。將鏡筒12自 $座16下方置入套筒15之殼體152内，使導執122卡入滑槽 153内，推頂機構13容置於套筒15之開口154内。彈簧Η?之 自由端頂住套筒1 5之開口 1 5 4内壁頂部。 136下於下方將鏡筒12向上頂，彈餐丨“壓縮，推桿 = 空間。將ί接凸輪144與轉輪148的側蓋 緊貼和體;5: 1 ί上，使側盍155靠近凸輪144之-侧之邊緣 Ϊ/Π ’凸輪144通過開口154進入套筒15之殼 體152内，位於推桿136下$，而轉輪148則部份容置於凹槽M261702 V. Creation instructions (2) nt :: Jiao j22 and base 24 are connected by an elastic device 23, and the focusing: 22 is provided with an adjustment groove 221 below, and the base "is provided with an adjustment groove 221: with: Point 241. Move the focusing ring 22 so that it rotates relative to the base 24; the difference between the convex point 241 of the soil seat 24 and the adjusting groove 221 of the focusing ring 22: surface contact, which drives the lens 21 to make a straight line along the optical axis direction The distance between the camera and the image sensor. The rotation of the focus ring of the lens module ... The n-th adjustment is a pause on a different table in the slot, that is, it can only focus in sections. Ί r: 二 :: 焦The degree of complexity and the structure of the lens module are complicated, especially the material requirements for adjusting the lens and clothing are high, which increases the manufacturing cost and difficulty. Realize this'Provide a lens module with high focusing accuracy and simple structure [New content] One of the lens module's ejector mechanism, the ejector mechanism includes the focus mechanism, the purpose of this book is to provide a lens module High focusing accuracy and simple structure. The lens module of this creation includes a lens barrel, a focusing mechanism and a sleeve. The lens is provided with a lens in the lens barrel, including a push rod = the push rod is fixed on the outer side wall of the lens barrel, and it is formed. II, it :: and: a rotatable cam. The sleeve includes a cylindrical shell ′ and a diameter matching the outer diameter of the lens barrel, and a side wall of the cylindrical shell is provided with a mouth.钂 The lens barrel is contained in the sleeve, so that the ejection mechanism is accommodated in the first two P :: in '. The elastic member and the side edge of the cam act on the pusher in opposite directions. Μ & Compared with the well-known lens module, the lens module of this creation drives the putter slidably connected to the side of the cam through the rotation of the cam, so that the lens is in the lens barrel M261702 V. Creation Instructions (3) ' Drive the linear motion along the optical axis to perform continuous and progressive focusing, so that the focusing accuracy of the lens module is fixed; the focusing mechanism of the lens module is only composed of an elastic element and a cam, and its structure is simple. [Embodiment] Please refer to the second and fourth figures in combination. The lens module 10 of this creation includes a lens barrel 12, an ejection mechanism 13, a focusing mechanism 14, and a set of barrels 15. The lens barrel 12 is a cylinder with two symmetrical shaft guides 122 protruding from the outer wall. A lens (not shown) is assembled and fixed in the lens barrel 12. The lens can be a lens or a plurality of lenses to form a lens group with a certain focal length, which is used to focus incident light. The lens barrel 12 is provided with a pushing mechanism 13 on the outer side wall away from the guide 1 2 2. The ejection mechanism 13 includes a holding portion 1 3 2 and a push rod 1 3 6. The holding part 1 3 2 is an integrally formed component, and its longitudinal section is “L”, including the main body 1 33 and the platform 134. The main body 133 is closely attached to the outer wall of the lens barrel 12 or integrally formed with the lens barrel 12 and the platform 134 It is horizontally located at its lower end. The push rod 136 is vertically held on the bottom surface of the platform 丨 34. The focusing mechanism 14 includes a spring 142, a cam 144, and a rotating wheel 148. The two ends of the spring 142 can be fixed on the upper end of the platform 134, and the other end is a free end. The center of the cam 144 is provided with a through hole 145, and a rotating shaft 146 is provided on the bottom surface of one of the rotating wheels 148. The rotating wheel 148 can drive the cam 144 to rotate through the cooperation of the rotating shaft 146 and the through hole 145. The outer side of the rotating wheel 148 is non-slip Figure 149. The sleeve 15 includes a casing 152 and a side cover 155. The casing 152 is a cylinder having a certain thickness, and its inner diameter matches the outer diameter of the lens barrel 12. The inner wall of the casing 152 is provided with two symmetry The axial slide groove 153 is used to match the guide 122 of the lens barrel 12 with M261702. 5. Creation instructions (4). The casing 152 is away from the slide groove 153 and an arched opening 154 is opened on the side. The inside of the top of the opening 154 is inward. The recess forms a groove 154a for accommodating the holding portion 132 when the lens barrel 12 slides up and down The main body 133. The side cover 155 is used to match the housing 1 5 2 and is assembled close to the opening 1 15 4-the edge of the side can closely fit the outer wall of the housing 1 5 2 and the other side is provided with a through hole 156 in the middle to allow The rotation shaft 146 of the runner 148 passes through to connect the cam 144. The base 16 is provided with an opening 162 consistent with the shape below the sleeve 15. The base 16 is recessed in the surface layer on the side of the opening 162 to form a groove 164. The cross section of the groove 164 is arcuate, and its radius and length are matched with the runner 丨 48. Please refer to the third figure in combination. When assembling, pass the rotary shaft 146 of the runner 1 4 8 through the through hole of the side cover 155 156, the cam 144 is held on the inside of the side cover 155 by the through hole 145 on the rotating shaft 146, so that the rotating wheel 148 can drive the cam 144 to rotate synchronously.-The spring 142 is fixed at the upper end of the platform 134, and the casing of the sleeve 15 is held. 152 is held on the base 16 by means of glue or screws, so that the housing is located above the opening 162, and the arcuate opening 154 is opposite to the groove 164. The lens barrel 12 is placed into the housing of the sleeve 15 from under the seat 16 In 152, the guide 122 is snapped into the chute 153, and the ejection mechanism 13 is accommodated in the opening 154 of the sleeve 15. [Eta]? Free end against the sleeve opening 154 at the top of the inner wall 15. The barrel 136 below the top 12 upward, projectile meal | 'or compression plunger = space. Hold the cam 144 and the side cover of the runner 148 in close contact with the body; 5: 1 ί, so that the side 盍 155 is close to the edge of the side of the cam 144 Ϊ / Π 'the cam 144 enters the casing of the sleeve 15 through the opening 154 The body 152 is located under the push rod 136, and the runner 148 is partially accommodated in the groove
五、創作說明（5) 164内。此時鬆開鏡筒12，彈簧142回復彈性形變，鏡筒12 推桿136抵持凸輪144之侧緣。之後，將側蓋155藉 17:膠2釘等方式固持於底座16上。再將與影像感測器 = 的電路板18裝配至底座16下方，使影像感測器 17位於光通路上。 言月結合參照第四圖及第五圖所示，拍㈣，根據盥拍 =物之距離，撥動轉輪148使其於凹槽164内旋轉，藉由 :146驅動凸輪144同步轉自’推桿136與凸輪144之；面滑 ，使得推桿136於彈簧142之配合下驅動鏡筒124沿光 盘滑样節像距以得到清晰之影像。由於導軌122 二槽153之導向作用’鏡筒12不會於套筒15内旋轉 1 /、凸輪144之侧面之接觸點距轉軸146距離逐漸婵大 ；；’推桿1 44藉由凸輪“4側面之推力向上運動，推V大 沿光軸向上運動。鏡筒12相對於套筒15上： 。抵持於凹槽154内壁頂部之彈簧142被不斷 : 口導軌148之接觸點距轉軸146距離逐漸減小 1 ^ 釋放彈性勢能，作用於推頂機構1 3之平台 從而像距生二向下，推力’使得鏡筒1 2相對於套筒1 5下降， 外侧面产二古虽無外力作用於轉輪148時，因轉輪148之 轉輪148V靜止：滑紋1 49二其與凹槽1 64產生之摩擦力使該 服彈簧142對平a 之凸輪1 44即隨之靜止’從而克 靜止。 σ 134所施加之向下推力，使鏡筒124亦保持 可以理解，本創作之鏡頭模組10亦可與其他透鏡配 五、創作說明（6) :距以：i ΐ碩模組内之透鏡與其他透鏡組合之透 焦距，從而達到調焦之目的。彈箬二透鏡版之 右遴叙〜人 J 坪貝i4Z與凸輪144之位茧 "數、、且s，例如將彈箐142設置於推桿〗％之下鱼置可 ^且使彈簧142處於拉伸狀態。舉凡使彈箬Η〗。^44 者二藉查由推桿1 3 6而分別作用於鏡筒! 2之力量方向相輪J 4 4 者，均可達到本創作之目的。 门相反 利申Ϊ上：述’本創作符合新型專利要件，爰依法提出專 創I::惟：以上所述者僅為本創作之較佳實施方式，ί 之人4·^圍並不以上述實施方式為限，舉凡熟習本案技藝 h援依本創作之精神所作之等效修飾或變化，皆應涵 盖於以下申請專利範圍内。 M261702V. Creation Instructions (5) 164. At this time, the lens barrel 12 is released, and the spring 142 returns to elastic deformation, and the push rod 136 of the lens barrel 12 abuts the side edge of the cam 144. After that, the side cover 155 is fixed on the base 16 by means of 17: glue 2 nails or the like. The circuit board 18 corresponding to the image sensor is assembled under the base 16 so that the image sensor 17 is located on the light path. Yanyue combined with reference to the fourth and fifth pictures, slap, according to the distance of the toilet = object, turn the wheel 148 to rotate in the groove 164, by: 146 driving cam 144 synchronous rotation from the 'push The surface of the lever 136 and the cam 144 slides, so that the push rod 136 drives the lens barrel 124 along the optical disc pitch along with the cooperation of the spring 142 to obtain a clear image. Due to the guiding effect of the guide rail 122 and the two grooves 153, the lens barrel 12 will not rotate within the sleeve 15, and the distance between the contact point on the side of the cam 144 and the rotating shaft 146 will gradually increase; 'Push rod 1 44 by the cam "4 The lateral thrust moves upwards, pushing V to move along the optical axis. The lens barrel 12 is relative to the sleeve 15:. The spring 142 which abuts against the top of the inner wall of the groove 154 is continuously: The contact point of the mouth rail 148 is away from the rotating shaft 146 Gradually reduce 1 ^ to release the elastic potential energy, which acts on the platform of the ejector mechanism 1 3 so that the image distance is downward. The thrust force 'causes the lens barrel 12 to fall relative to the sleeve 15. Although there is no external force acting on the outer surface At the time of the runner 148, because the runner 148V of the runner 148 is at rest: the sliding force 1 49 2 and the frictional force generated by the groove 1 64 cause the cam spring 142 to be flat against the cam 1 44 and then stand still. Still. The downward thrust exerted by σ 134 keeps the lens barrel 124 intelligible. The lens module 10 of this creation can also be equipped with other lenses. 5. Creation instructions (6): Distance: i The focal length of the combination of the lens and other lenses, so as to achieve the purpose of focusing. The right version of the edition ~ person J pingbei i4Z and cam 144 position cocoon "quote, and s, for example, the impeachment 142 is set below the push rod〗% fish can be placed ^ and the spring 142 is in a stretched state .Jumping the impeachment. ^ 44 The second one can be checked by the putter 1 3 6 and act on the lens barrel! 2 The power direction phase wheel J 4 4 can achieve the purpose of this creation. Above: "This creation complies with the requirements of new patents, and the original creation is based on the law. I :: But the above is only a preferred implementation of this creation. The person 4 ^ Wai is not limited to the above implementations." For example, all equivalent modifications or changes that are familiar with the skills of this case and based on the spirit of this creation should be covered by the following patent applications. M261702
，一圖係習知之鏡頭模組之示意圖。 ，亡圖係本創作之鏡頭模組之立體分解圖。 ，二圖係本創作之鏡頭模組之裝配圖。 第四圖係本創作之鏡頭模組調節至較小像距狀態 視圖。 勹剖 第五圖係本創作之鏡頭模組調節至較大像距狀態之局部剖 【主要元件符號說明】 鏡頭模組 10 導軌 122 固持部 132 平台 134 调焦機構 14 凸輪 144 轉軸 146 防滑紋 149 殼體 152 開口 154 侧蓋 155 底座 16 凹槽 164 電路板 18 鏡筒 12 推頂機構 1 3 主體 U3 推桿 13 6 彈簧 1彳2 通孔 u5 轉輪 1彳§ 套筒 15 滑槽 153 凹槽 I54aA picture is a schematic diagram of a conventional lens module. The dead picture is a three-dimensional exploded view of the lens module created in this article. The second picture is the assembly drawing of the lens module created in this article. The fourth picture is a view of the lens module adjusted to a smaller image distance. The fifth figure is a partial section of the lens module adjusted to a larger image distance in this creation. [Description of the main component symbols] Lens module 10 Guide rail 122 Holding section 132 Platform 134 Focusing mechanism 14 Cam 144 Rotary shaft 146 Anti-slip pattern 149 Housing 152 Opening 154 Side cover 155 Base 16 Groove 164 Circuit board 18 Lens barrel 12 Push-up mechanism 1 3 Body U3 Push rod 13 6 Spring 1 彳 2 Through hole u5 Wheel 1 彳 § Sleeve 15 Slot 153 Groove I54a
通孔 1M 凹槽 U2 影像感測器 1 7Through hole 1M groove U2 image sensor 1 7