TWM364879U - Lens module for automatic focusing - Google Patents

Lens module for automatic focusing Download PDF

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Publication number
TWM364879U
TWM364879U TW098202729U TW98202729U TWM364879U TW M364879 U TWM364879 U TW M364879U TW 098202729 U TW098202729 U TW 098202729U TW 98202729 U TW98202729 U TW 98202729U TW M364879 U TWM364879 U TW M364879U
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TW
Taiwan
Prior art keywords
spring
lens
coil
cover
ring
Prior art date
Application number
TW098202729U
Other languages
Chinese (zh)
Inventor
han-zong Wu
jin-yi Zhou
Original Assignee
E Pin Optical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by E Pin Optical Industry Co Ltd filed Critical E Pin Optical Industry Co Ltd
Priority to TW098202729U priority Critical patent/TWM364879U/en
Priority to KR2020090007557U priority patent/KR200455061Y1/en
Publication of TWM364879U publication Critical patent/TWM364879U/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/08Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32Means for focusing
    • G03B13/34Power focusing
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10Power-operated focusing
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K41/00Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02Linear motors; Sectional motors
    • H02K41/03Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K41/00Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02Linear motors; Sectional motors
    • H02K41/035DC motors; Unipolar motors
    • H02K41/0352Unipolar motors
    • H02K41/0354Lorentz force motors, e.g. voice coil motors
    • H02K41/0356Lorentz force motors, e.g. voice coil motors moving along a straight path

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)

Description

M364879 支架11 中央孔12 定位稍13 凸起14 導電片20 定位孔21 凸片22 中央孔23 絕緣片30 定位孔31 中央孔32 永久磁鐵40 鏡頭套筒50 中央孔51 外凸緣52 光學鏡片組60 線圈70 彈簧組80 圈狀彈簧81 葉片彈簧82 内圈821 外圈822 上蓋90 上環蓋90a 紅外線濾光片100 五、新型說明: 【新型所屬之技術領域】 本創作係有關一種自動對焦鏡頭模組,尤指一種藉彈簧組的 • 平衡彈簧力與電磁力以控制光學鏡片組前/後移動而進行對焦者。 【先前技術】 數位相機或具拍攝功能的手機上均設有一鏡頭模組,而該鏡 頭模組之功能為驅動光學鏡片組沿著光軸移動,以達到自動對焦 * (autofocus)且/或變焦(zoom)的功能。光學鏡片組的移動方法之 、一為音圈馬達VCM(Voice coil motor),係藉由電流流經一線圈產 生電磁場,電磁場與永久磁鐵產生驅動力(driving f〇rce)而使光 學鏡片組沿著光軸移動。由於此種方法可以縮小鏡頭模組體積, 2 M364879 伽tf外忽- 近年已大量運用於小型相機、手機相機(camera-equi^ijed-- cellular phone)或網路相機(web-camera)中。 習知音圈馬達VCM型式的自動對焦模組如圖1所示,如美國 專利 US2008M013196、US6, 594, 450、US7,145, 738、台灣專利 TWM317027及日本專利JP3124292、JP3132575,其主要由一底蓋 110、二個導電片122、一絕緣片130、四個永久磁鐵140、鏡頭套 筒150、光學鏡片組160、一圈狀彈簧(coiled spring) 171、一 線圈180及一上蓋190所構成。其中’鏡頭套筒150、光學鏡片組 鲁 160、及線圈180係組成一可沿光軸移動的鏡頭組。其中,使用圈 狀彈簧171時,圈狀彈簧171可以產生直接有效的彈性力,使鏡 頭套筒150可以快速移動,但由於使用圈狀彈簧Hi可能會使鏡 頭組在移動過程中產生傾斜(tilt),致難以達到極高精密的要 求。另一種習知音圈馬達VCM型式的自動對焦模組如圖2所示, 其係使用葉片彈簧172(blade spring、leaf spring)之彈性力使 鏡頭套筒150移動,如美國專利US2008/0186601、 US2006/0181632、台灣專利 TWM331687、TWM318736、日本專利 φ JP63247924等。然而使用葉片彈簧172時,葉片彈簧172彈性力 及運動長度(extension length)較不足,使得鏡頭組移動緩慢, 難以符合快速對焦的要求;甚至習知技術使用二個葉片彈簧172 以補足運動長度不足的缺點,但仍存在移動緩慢的問題。 • 對於高精密、快速對焦的要求,在儘量減低現有設計或自動 •對焦模組商品的變更範圍下,利用彈簧組所組合的彈性力,在對 焦過程中鏡頭組以近乎等速度移動,將可有效達到高精密、快速 對焦、減低傾斜現象的要求。 【新型内容】 3 M364879 正 *本創作主要目的提供—種自動對焦鏡頭模組,其 底蓋、二導電片、-絕緣片、四永久磁鐵、一鏡頭套筒、 鏡片組、-彈簧組一線圈及—上蓋組成,而鏡頭套筒、光學^ 二組及線圈係構成-可同步連動之鏡頭組,而該四個永久磁鐵係 專距且對稱佈設在線圈之外圍且位於底蓋之四㈣處;其中 簧組係包含賺彈簧及葉片彈簧,該圈狀彈簧係套設在線圈之内 圍或外圍並彈性支禮在鏡頭套筒之環狀外凸緣與上蓋之間,該葉 片彈簧之内圈係固設在鏡頭套筒—端面上,其外圈保持定位不、 動;藉此’可藉由圈狀彈簧及葉片彈簧兩種不之彈脊的延 伸或壓縮而構餘合㈣簧力’用轉線圈職後與永久磁鐵之 間所產生之電磁力配合,贿該域縣筒、光學組及線圈 所構成之鏡頭組可以進行對焦移動,藉以達成快速移動、穩定對 焦並減少傾斜之功效。 【實施方式】 為使本創作更加明確詳實,茲配合下列實施例圖示詳述如後: 〈第一實施例〉 參考圖3、4所示,本創作鏡頭模組1主要包含一底蓋(base) 10、二導電片(copper plate) 20、一絕緣片(insulati〇nspacer) 3〇、四永久磁鐵(permanent magnet)4〇、一鏡頭套筒(lens h〇lder) 50、—光學鏡組(optical lens)60、一彈簧組(spring set)8〇、 一線圈70及一上蓋(top cover) 90 ;其中,該彈簧組80包含一 圈狀彈簧(coil spring)81及一葉片彈簧(blade spring)82 ;而該 鏡頭套筒50、光學鏡片組60與線圈70係組成一可同步移動的鏡 頭組,俾可在底蓋10與上蓋90之間上/下(前/後)移動而達成 對焦功效。 4 Μ364879 I》年汁卿日1、 請再參考圖5-12,其係本實施例各構件之間之連續1^··福一: 示意圖;玆配合圖4及圖14分別說明如下: 參考圖4、5、14所示,底蓋1〇係一矩形框架體,其四角處 設有扣合用四支架11供與上蓋9〇組合成一體,其中央處設有一 中央孔12供形成光學鏡片組6〇之光學路徑,其内 個定位稍13及隔緣用凸起π ;另’中央孔12下方處可言^一紅外 、線濾光片(IR cut-off filter) 1〇〇如圖4所示。 再參考圖4、6、14所示,二導電片20係分別藉其定位孔21 與定位稍13配合賴設在錢1G上並職電性隔離狀態,並各 藉一凸片22以連接不同電極;而二導電片2〇之間形成一中 23以對應底蓋1〇之中央孔a。 、 人再參考圖4、7所示’絕緣片3〇係藉其定位孔31與定位稍13 ^2而3貼設在二_ 2Q上,又其具-巾央錢崎應中央孔 再參考圖4、9、14所示,四個永久磁鐵^ ,分別立置固定在矩形底蓋1()之四=== 固叹在上蓋90與底蓋1〇之間,本實施 ^ 別壓覆並固定在葉片彈簧82之外瞧上面個水久磁鐵4〇係分 中,菩:14所示’鏡頭套筒50係設於中央孔12、23 τ立使葉片彈簧82之内圈821纽固定在 士 二外緣面上’·本實施例之鏡頭套筒 環:止知 51及一環狀外凡縿.丨&gt; 棚 圓環體,3又有一中央孔 央孔不=鏡片組6〇係鎖固在鏡頭套筒5。之中 如围為螺合方式或黏著方式。 頭套筒5〇之外緣面上並彈性狀彈簧81係套設鏡 與上蓋90之間。再如圖牙兄頭套缚50之環狀外凸緣52 冉如圖4、8、14所示,彈簧組別中之葉片彈簧 M3.64879 在鏡頭套筒50上,其外圈822係貼設在絕緣片30上,如圖13所 示其内圈821可夾設固定在鏡頭套筒5〇之底端之外緣面上,而其 外圈822係固設在絕緣片3〇上並保持不動;而依據葉片彈簧拟 的結構特性,該内圈821與外圈822固定後,藉由内圈821與外 圈822之間的拉伸作用可產生彈性力。鏡頭組(包含鏡頭套筒5〇、 光學鏡片組60及線圈70)係受電磁力、圈狀彈簧81之彈性力及 葉片彈簧82之彈性力所形成的淨合力(net f_)而產生移動對 焦,由於圈狀彈簧81與葉片彈簧82在結構上形成串聯型態,其 作用上為兩者彈性係數之和,藉此除可減弱其中任一彈簧力的單 獨影響外’其作財向可對綱套筒5{)產生細 而進-錢料-科所私單.__,藉喊錄頭Γ在移 動過程中產生傾斜(tilt)的現象。再者,圈狀彈簧Μ之彈性力及 葉片彈簧82之彈性力形成彈性力的合力,可改善習知技術只使用 葉片彈簧82之位移量不足或彈性力不足而移動緩慢之缺點。M364879 Bracket 11 Center hole 12 Positioning slightly 13 Raised 14 Conductive sheet 20 Positioning hole 21 Tab 22 Center hole 23 Insulation sheet 30 Positioning hole 31 Center hole 32 Permanent magnet 40 Lens sleeve 50 Center hole 51 Outer flange 52 Optical lens group 60 Coil 70 Spring set 80 Ring spring 81 Leaf spring 82 Inner ring 821 Outer ring 822 Upper cover 90 Upper ring cover 90a Infrared filter 100 V. New description: [New technical field] This is an autofocus lens module A group, especially one that relies on a spring group to balance the spring force and electromagnetic force to control the front/rear movement of the optical lens group. [Prior Art] A digital camera or a camera with a shooting function is provided with a lens module, and the function of the lens module is to drive the optical lens group to move along the optical axis to achieve autofocus and/or zoom. (zoom) features. One of the moving methods of the optical lens group is a voice coil motor (VCM), which generates an electromagnetic field by a current flowing through a coil, and an electromagnetic field and a permanent magnet generate a driving force (driving f〇rce) to cause the optical lens group to follow The optical axis moves. Because this method can reduce the size of the lens module, 2 M364879 gamma tf - in recent years has been widely used in small cameras, mobile phones (camera-equi^ijed--cellular phones) or web cameras (web-camera). A conventional voice coil motor VCM type of autofocus module is shown in FIG. 1 , such as US Pat. No. US2008M013196, US Pat. No. 6,594,450, US Pat. No. 7,145,738, Taiwan Patent No. TWM317027, and Japanese Patent No. JP3122922, JP3132575, which are mainly composed of a bottom cover. 110. Two conductive sheets 122, an insulating sheet 130, four permanent magnets 140, a lens sleeve 150, an optical lens group 160, a coiled spring 171, a coil 180 and an upper cover 190. The lens sleeve 150, the optical lens assembly 160, and the coil 180 constitute a lens group that is movable along the optical axis. Wherein, when the coil spring 171 is used, the coil spring 171 can generate a direct effective elastic force, so that the lens sleeve 150 can move quickly, but the use of the coil spring Hi may cause the lens group to tilt during the movement (tilt ), it is difficult to achieve extremely high precision requirements. Another conventional voice coil motor VCM type autofocus module is shown in FIG. 2, which uses the elastic force of a leaf spring 172 (blade spring, leaf spring) to move the lens sleeve 150, such as US Patent US2008/0186601, US2006. /0181632, Taiwan patent TWM331687, TWM318736, Japanese patent φ JP63247924 and the like. However, when the leaf spring 172 is used, the blade spring 172 has insufficient elastic force and extension length, so that the lens group moves slowly and is difficult to meet the requirements of fast focus; even the conventional technique uses two leaf springs 172 to compensate for insufficient exercise length. Disadvantages, but there is still a problem with slow movement. • For high-precision, fast-focusing requirements, the lens group can be moved at nearly constant speed during the focusing process by minimizing the range of changes in existing designs or auto-focus modules. Effectively achieve high precision, fast focus, and reduce the tilt phenomenon. [New Content] 3 M364879 The main purpose of this creation is to provide an autofocus lens module with a bottom cover, two conductive sheets, an insulating sheet, four permanent magnets, a lens sleeve, a lens group, a spring group and a coil. And the upper cover is composed, and the lens sleeve, the optical unit 2 and the coil system are configured to be synchronously linked to the lens group, and the four permanent magnets are disposed at a distance of the coil and are symmetrically disposed at the periphery of the coil and at the fourth (four) of the bottom cover The spring set includes a spring and a leaf spring, and the coil spring is sleeved on the inner circumference or the periphery of the coil and elastically supported between the annular outer flange of the lens sleeve and the upper cover, within the leaf spring The ring system is fixed on the lens sleeve-end surface, and the outer ring is kept in position and not moved; thereby, the ring spring and the leaf spring can be used to extend or compress the ridge (four) spring force. 'With the electromagnetic force generated between the rotating coil and the permanent magnet, the lens group consisting of the county tube, the optical group and the coil can be moved to achieve fast movement, stable focus and reduced tilt. . [Embodiment] In order to make the creation more clear and detailed, the following embodiments are described in detail as follows: <First Embodiment> Referring to Figures 3 and 4, the inventive lens module 1 mainly comprises a bottom cover ( Base) 10, two copper plate 20, an insulating sheet (insulati〇nspacer) 3 〇, four permanent magnets (permanent magnet) 4 〇, a lens sleeve (lens h〇lder) 50, - optical lens (optical lens) 60, a spring set 8〇, a coil 70, and a top cover 90; wherein the spring set 80 includes a coil spring 81 and a leaf spring (blade) The lens sleeve 50, the optical lens group 60 and the coil 70 form a synchronously movable lens group, and the cymbal can be moved up/down (front/rear) between the bottom cover 10 and the upper cover 90. Focusing effect. 4 Μ 364 879 I I 青 青 青 1 , Please refer to FIG. 5 - 12 again, which is a continuous 1 ^ ······························ As shown in Figures 4, 5 and 14, the bottom cover 1 is a rectangular frame body, and four brackets for fastening are provided at the four corners for integration with the upper cover 9 ,. A central hole 12 is formed at the center for forming an optical lens. The optical path of the group 6〇, the inner positioning is slightly 13 and the partition is convex π; the other is below the central hole 12, an IR cut-off filter is shown in the figure. 4 is shown. Referring to FIG. 4, FIG. 6, and FIG. 14, the two conductive sheets 20 are respectively disposed on the money 1G by the positioning holes 21 and the positioning holes 13 respectively, and are separated by a tab 22 respectively. The electrode; and a middle 23 is formed between the two conductive sheets 2 to correspond to the central hole a of the bottom cover 1〇. Referring to Figures 4 and 7, the insulative sheet 3 is attached to the second _ 2Q by its positioning hole 31 and the positioning slightly 13 ^ 2, and it has a - towel Yang Qianqi should be the central hole for reference. As shown in Figures 4, 9, and 14, four permanent magnets ^ are respectively vertically fixed to the rectangular bottom cover 1 () four === sigh between the upper cover 90 and the bottom cover 1 ,, this embodiment And fixed in the outer spring of the blade spring 82, the upper part of the water magnet 4, the pistol: 14 shown that the 'lens sleeve 50 is set in the central hole 12, 23 τ vertical to the inner ring 821 of the leaf spring 82 fixed On the outer edge of the second edge of the 'two lens' ring of this embodiment: stop knowing 51 and a ring outer 縿. 丨> shed ring body, 3 has a central hole, the central hole is not = lens group 6 〇 It is locked to the lens sleeve 5. Among them, the way is screwing or sticking. The elastic spring 81 is disposed between the mirror and the upper cover 90 on the outer peripheral surface of the head sleeve 5b. Then, as shown in Figures 4, 8, and 14, the leaf spring M3.64879 in the spring group is on the lens sleeve 50, and the outer ring 822 is attached to the insulation. On the sheet 30, as shown in FIG. 13, the inner ring 821 can be clamped and fixed on the outer edge surface of the bottom end of the lens sleeve 5〇, and the outer ring 822 is fixed on the insulating sheet 3〇 and remains stationary; According to the structural characteristics of the leaf spring, after the inner ring 821 and the outer ring 822 are fixed, an elastic force can be generated by the stretching between the inner ring 821 and the outer ring 822. The lens group (including the lens sleeve 5〇, the optical lens group 60, and the coil 70) is subjected to moving focus by the electromagnetic force, the elastic force of the coil spring 81, and the net force (net f_) formed by the elastic force of the leaf spring 82. Since the coil spring 81 and the leaf spring 82 form a series configuration on the structure, the action is the sum of the elastic coefficients of the two, thereby eliminating the single influence of any one of the spring forces. The sleeve 5{) produces a fine-in-money---------------------------------------------------------------------------------------------------------------------------------------------- Further, the elastic force of the ring spring and the elastic force of the leaf spring 82 form a resultant force of the elastic force, which can improve the conventional technique that only the blade spring 82 is insufficient in displacement or the elastic force is insufficient to move slowly.

82,具有一内圈821及一相連結之外圈822,其該内圈1 正 充 再參考圖4、12、14所示,線圈7〇係套設在圈狀彈簧81之 外圍並蚊在辆錢5Q之環狀外凸緣52上續鏡縣筒5〇址 合成-連動體。本實補進―步在上蓋9()下方設置—上環蓋(_ nng cover) 90a,使四個永久磁鐵4〇可分別固設在上 之四角内緣處,再將上蓋9Q鎖固在底蓋1G之四支架n上,以使 ,環蓋90a夾設在上蓋9〇與底蓋1()之間,以組裝完成一鏡頭模 、、且1,並使四水久磁鐵40夾固在上環蓋9〇a之内緣面與絕緣片3〇 參考圖4及圖8-14所示,其中該鏡頭套筒5〇、光學鏡片組 、圈狀彈簧8卜葉片彈簧82及線圈7〇等構件間之組裝次序並 不限制,也就是圖8-12並非絲限繼等構件間讀裝次序,如 6 M364879 光學鏡片組60及線圈70可先與鏡頭套筒5〇 (圖8、9中未^^ 鏡片組60)組裝成一體,且葉片彈簧82也可先組設在鏡頭套筒 50 —端面上如圖13所示,再將已組裝有光學鏡片組6〇、線圈7〇 及葉片彈簧82之鏡頭套筒50組設在絕緣片3〇上。 又彈簧組80之圈狀彈簧81可採用壓縮式圈狀彈簧,當上蓋 90與底蓋10組合成一體時,該圈狀彈簧81可呈適當的壓縮狀態, 並相對壓迫鏡頭套/4 50向下;藉由彈簧組8〇之組合的彈簧力使 鏡頭組停置於其伸縮動程中之下(後)死點位置,而形成遠焦位 置;又線圈70之頭、尾端可改變不同電極及電流大小,藉以配合 永久磁鐵40之N、S極而產生向上/向下(向前/向後)之電磁力, 藉以驅動綱組(包含鏡頭套筒5G、光學鏡片組6()及線圈7〇) 及葉片彈簧82之内圈821上/下(前/後)移動以進行對焦動作; 而在本實施例中’線圈70與永久磁鐵4〇間電磁力之產生方式可 選擇只產生向上(向前)電磁力’使在遠焦位置時,_7〇可不 通電流,使鏡頭組不受電磁力作用而停留在下(後)死點位置(遠 焦位置當欲進行對焦動作時’則控制一適量電流通過線圈?〇 以產生-適量電磁力以驅使鏡頭組向上(前)移動,而形成近隹 狀態,而當鏡頭組上所受電磁力與彈簧組8〇之彈性力平衡時,“梦 頭組即停留在該調整後位置,因此,鏡頭組由遠焦向上(前兄 動至近焦位置須藉電磁力’而由近焦位置向下(後)回復 位置則可赫簧組8〇之喊力,藉崎成遠近·調整功效。… 本創作鏡頭模組1與習知鏡頭模組比較,藉由上述結構 組合的彈簧力與電磁力’可使鏡数快迷與觀移動、減少 的現象發生。 〈第二實施例&gt; 7 M364879 參考圖15 ,本實施例鏡頭模組la係包含一底蓋i〇、L^_ 片20、一、絕緣片30、四永久磁鐵4〇、一鏡頭套筒5〇、 片組60、一彈簧组δ〇、一線圈7〇、及一上蓋9〇,其中 刖包含一圈狀彈簧81及一葉片彈簧82;鏡頭套筒5〇、光學鏡 組60、線圈80及葉片彈簧82係組成一可同步移動的鏡頭植,俾 可^蓋U)與上蓋9G之間前/後(上/下)移動而達成對焦功效。 而本實施例鏡頭模組1a與第一實施例之鏡頭模組1的結構大致相 同’一者之間的最大差異係在於該圈狀彈簧81係套設在線圈7〇 二3圍而第—實施例之鏡頭模組1之圈狀彈簧81係套設在線圈 $作鏡頭模組卜la與習知鏡頭模組比較,藉由上述結構 傾斜的且:ί力與電磁力,可使鏡頭組快速與穩定移動、減少 以上所示僅為本創作之較佳實施例,對本創作而言僅 =^_性的。本專紐術人員爾 :限定:精神和範圍内可對其進行許多改變,修改,甚= 更,但都將落入本創作的保護範圍内。 寻欢變 【圖式簡單說明】 ^^習知―具音圈馬達戰湘圈狀彈箐)之自動對焦模組之 知另一具音圈馬咖(利用葉片彈簧)之自動對焦模組 =係本創作第-實施例之立體組合外觀圖。 係本創作第一實施例之立體分解圖。 圖5-12係本創作第一訾&amp; 弟實施例各構件之間之連續組合關係示意圖。 M3 64879 听斗 圖13係本創作第一實施例中葉片彈簧與鏡頭套筒之組裝示i (底 視)圖。 圖14係本創作第一實施例之一側面剖視圖。 圖15係本創作第二實施例之立體分解圖。 【主要元件符號說明】82, having an inner ring 821 and a phase connecting outer ring 822, wherein the inner ring 1 is filled with reference to FIGS. 4, 12, and 14, and the coil 7 is sleeved on the periphery of the coil spring 81 and the mosquito is in the vehicle. On the ring outer flange 52 of the money 5Q, the continuation of the county tube 5 〇 site synthesis - linkage body. The actual complement-step is set under the upper cover 9 () - upper ring cover (_ nng cover) 90a, so that the four permanent magnets 4 〇 can be respectively fixed at the inner edge of the upper four corners, and then the upper cover 9Q is locked at the bottom Covering the bracket n of the 1G so that the ring cover 90a is interposed between the upper cover 9 〇 and the bottom cover 1 () to assemble a lens mold, and 1 and to clamp the permanent magnet 40 The inner edge surface of the upper ring cover 9A and the insulating sheet 3 are shown in FIG. 4 and FIG. 8-14, wherein the lens sleeve 5〇, the optical lens group, the coil spring 8 and the leaf spring 82, and the coil 7〇, etc. The order of assembly between components is not limited, that is, Figure 8-12 is not the order of reading between components, such as 6 M364879 optical lens set 60 and coil 70 can be first with the lens sleeve 5 (Figures 8, 9 The lens group 60) is assembled into a single body, and the leaf spring 82 may be first assembled on the end surface of the lens sleeve 50 as shown in FIG. 13, and the optical lens group 6〇, the coil 7〇, and the blade are assembled. The lens sleeve 50 of the spring 82 is assembled on the insulating sheet 3''. Further, the coil spring 81 of the spring group 80 can adopt a compression type coil spring. When the upper cover 90 and the bottom cover 10 are integrated, the coil spring 81 can be in a proper compression state and relatively oppress the lens sleeve/4 50 direction. By the spring force of the combination of the spring group 8〇, the lens group is stopped at the lower (post) dead center position of the telescopic stroke to form a telephoto position; and the head and the tail end of the coil 70 can change different electrodes and The magnitude of the current is used to match the N and S poles of the permanent magnet 40 to generate an upward/downward (forward/backward) electromagnetic force, thereby driving the set (including the lens sleeve 5G, the optical lens group 6 (), and the coil 7 〇 And the inner ring 821 of the leaf spring 82 moves up/down (front/rear) to perform a focusing operation; in the present embodiment, the manner of generating the electromagnetic force between the coil 70 and the permanent magnet 4 can be selected to be only upward. The front electromagnetic force 'in the far focus position, _7 〇 can not pass current, so that the lens group is not affected by the electromagnetic force and stays in the lower (back) dead point position (the far focus position when the focus action is required), then control an appropriate amount of current Through the coil? 〇 to produce - the right amount of electricity The force drives the lens group to move up (front) to form a near squat state, and when the electromagnetic force on the lens group is balanced with the elastic force of the spring group 8 ,, the "dream group stays in the adjusted position, so The lens group is moved from the far focus upwards (the front brother moves to the near focus position to borrow electromagnetic force' and the near focus position to the downward (back) return position can be the screaming force of the Herong group. The present lens module 1 is compared with the conventional lens module, and the spring force and the electromagnetic force 'combined by the above-mentioned structure can cause the phenomenon that the number of mirrors is fast and the movement is reduced and reduced. <Second embodiment> 7 M364879 Referring to FIG. 15, the lens module 1A of the present embodiment includes a bottom cover i〇, an L^_piece 20, an insulating sheet 30, four permanent magnets 4〇, a lens sleeve 5〇, a sheet set 60, and a The spring group δ 〇, a coil 7 〇, and an upper cover 9 〇, wherein the cymbal includes a coil spring 81 and a leaf spring 82; the lens sleeve 5 〇, the optical lens assembly 60, the coil 80 and the leaf spring 82 are combined Simultaneously moving lens implants, front/rear (up/down) movement between the cover U) and the upper cover 9G The lens module 1a of the present embodiment has substantially the same structure as the lens module 1 of the first embodiment. The biggest difference between the ones is that the coil springs 81 are sleeved on the coils. The coil spring 81 of the lens module 1 of the first embodiment is sleeved on the coil $ as a lens module, and compared with the conventional lens module, the structure is tilted and: force and electromagnetic force, The lens group can be moved quickly and stably, and the above embodiment is only a preferred embodiment of the present invention. For the present invention, only the ^^_ sex is used. This specializes the staff: limited: spirit and scope can be Many changes, modifications, and even more are made, but they will all fall within the scope of protection of this creation. Seeking joy [simplified description of the schema] ^^知知-with the voice coil motor war Xiang Xiang-shaped magazine) The module knows another auto-focusing module with a voice coil horse (using a leaf spring) = a stereoscopic combined appearance of the first embodiment of the present invention. An exploded perspective view of the first embodiment of the present creation. Figure 5-12 is a schematic diagram showing the continuous combination relationship between the components of the first embodiment of the present invention. M3 64879 Talk Figure 13 is an assembly i (bottom view) view of the leaf spring and the lens sleeve in the first embodiment of the present invention. Figure 14 is a side cross-sectional view showing a first embodiment of the present invention. Figure 15 is an exploded perspective view of a second embodiment of the present creation. [Main component symbol description]

鏡頭模組1、la 底蓋10 支架11 中央孔12 定位稍13 凸起14 導電片20 定位孔21 凸片22 中央孔23 絕緣片30 定位孔31 中央孔32 永久磁鐵40 鏡頭套筒50 中央孔51 外凸緣52 光學鏡片組60 線圈70 彈簧組80 圈狀彈簧81 葉片彈簧82 内圈821 外圈822 上蓋90 紅外線濾光片100 上環蓋90aLens module 1, la bottom cover 10 bracket 11 central hole 12 positioning slightly 13 protrusion 14 conductive sheet 20 positioning hole 21 tab 22 central hole 23 insulating sheet 30 positioning hole 31 central hole 32 permanent magnet 40 lens sleeve 50 central hole 51 Outer flange 52 Optical lens set 60 Coil 70 Spring set 80 Ring spring 81 Leaf spring 82 Inner ring 821 Outer ring 822 Upper cover 90 Infrared filter 100 Upper ring cover 90a

Claims (1)

M364879 六、申請專利範圍: 1. 一種自動對焦鏡頭模組,包含一底蓋、二導電片、一絕緣片、 四永久磁鐵、一鏡頭套筒、一光學鏡片組、一彈簧組、一線圈 及一上蓋,其中: 底蓋’其四角處設有扣合用四支架供與上蓋扣合成一體,其中 央處設有一中央孔供形成光學鏡片組之光學路徑,其内面對角 處設有數個定位稍; 導電片’係分別藉定位孔與底蓋之定位稍配合,以固設在底蓋 上並形成電性隔離狀態,又二導電片之間形成一中央孔以對應 底蓋之中央孔; 絕緣片,其上設定位孔以對應配合底蓋之定位稍,使其貼設在 二導電片上,又其上設一中央孔; 永久磁鐵,係對稱形狀且略呈圓弧形之永久磁鐵,分別立置在 底蓋之四支架的内侧; 鏡頭套筒,係一圓環體,設有一中央孔及一環狀外凸緣; 光學鏡片組,係固設在鏡頭套筒之中央孔中; 彈簧組,包含至少一圈狀彈簧及一葉片彈簧; 線圈,係固定在鏡頭套筒之環狀外凸緣上,其頭、尾端導線係 分別連接至二導電片之不同電極; 上蓋,係套設在底蓋上並扣合成一體; 其中’該鏡頭套筒、光學鏡片組及線圈係組成一可同步移動的 鏡頭組; 其中’該圈狀彈簧係套設於鏡頭套筒之環狀外凸緣上並彈性支 揮在該環狀外凸緣與上蓋内緣面之間;而該葉片彈簧具有一内 圈及及一相連結之外圈,且其中該内圈係固設在鏡頭套筒上而 M364879 略修正 編 可隨鏡頭套筒移動,而該外圈係保持不動; 圈狀彈簧與葉片彈簧之組合的彈簧力,用以配合通 以==域之間所產生之電磁力作用,使鏡頭組可 2,=申請專利範圍第1項所述自動對焦鏡頭模組,其中該圈狀彈 簧係套設在線圈之内圍。 3. ^Ϊ專利範圍第1項所述自動對焦鏡頭模組,其中該圈狀彈 簧係套設在線圈之外圍。 4. 如申請專利範圍第丨項所述自動對焦鏡頭模組,其中該圈 簧可採用延伸式圈狀彈簧。 5. 如申請專利範圍第!項所述自動對焦鏡頭模組,其中該圈狀彈 簧可採用壓縮式圈狀彈簧。 6·如申請專利細第1項所述自動對焦鏡賴組,其進—步可在 上蓋之下方(内侧)設置-上環蓋,使四個永久磁鐵可分別先 固設在該上環蓋之四角内緣處,再將上蓋鎖固在底蓋之四支架 上,以使上環蓋夾設在上蓋與底蓋之間,並使四永久磁鐵夾'固 在上環蓋之内緣面與絕緣片之間。M364879 VI. Patent Application Range: 1. An autofocus lens module comprising a bottom cover, two conductive sheets, an insulating sheet, four permanent magnets, a lens sleeve, an optical lens group, a spring group, a coil and An upper cover, wherein: the bottom cover has four brackets for fastening and is integrated with the upper cover buckle at the four corners, and a central hole is provided at the center for forming an optical path of the optical lens group, and a plurality of positioning positions are arranged at the inner corners thereof. The conductive strips are slightly matched with the positioning of the bottom cover by the positioning holes to be fixed on the bottom cover and form an electrical isolation state, and a central hole is formed between the two conductive sheets to correspond to the central hole of the bottom cover; The insulating sheet has a positioning hole on the bottom surface corresponding to the positioning of the bottom cover, so as to be attached to the two conductive sheets, and a central hole is arranged thereon; the permanent magnet is a permanent magnet with a symmetrical shape and a slightly circular arc shape. Standing on the inner side of the four brackets of the bottom cover; the lens sleeve is a ring body, and has a central hole and an annular outer flange; the optical lens group is fixed in the central hole of the lens sleeve; bomb The set includes at least one coil spring and a leaf spring; the coil is fixed on the annular outer flange of the lens sleeve, and the head and the tail end wires are respectively connected to different electrodes of the two conductive sheets; the upper cover and the sleeve It is arranged on the bottom cover and buckled into one body; wherein the lens sleeve, the optical lens group and the coil system form a lens group which can be synchronously moved; wherein the ring spring is sleeved on the annular protrusion of the lens sleeve The edge is elastically supported between the annular outer flange and the inner surface of the upper cover; and the leaf spring has an inner ring and a connecting outer ring, wherein the inner ring is fixed to the lens sleeve The M364879 slightly modified can move with the lens sleeve, and the outer ring remains stationary; the spring force of the combination of the coil spring and the leaf spring is used to match the electromagnetic force generated between the == domains. The lens group can be 2, the patented range of claim 1 is the autofocus lens module, wherein the coil spring is sleeved inside the coil. 3. The autofocus lens module of claim 1, wherein the loop spring is sleeved on the periphery of the coil. 4. The autofocus lens module of claim 2, wherein the coil spring is an extended coil spring. 5. If you apply for a patent scope! The autofocus lens module of the present invention, wherein the coil spring can be a compression type coil spring. 6. If the autofocus lens assembly according to the first item of the patent application is applied, the advance step may be provided on the lower side (inside) of the upper cover - the upper ring cover, so that the four permanent magnets may be respectively fixed at the four corners of the upper ring cover. At the inner edge, the upper cover is locked on the four brackets of the bottom cover so that the upper ring cover is sandwiched between the upper cover and the bottom cover, and the four permanent magnet clips are fixed to the inner edge surface of the upper ring cover and the insulating sheet. between.
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