1353157 六、發明說明： ---- 【發明所屬之技術領域】 [0001] 本發明係關於-種數位相機_、機構及數位相機模組， 特別係關於一種手機用數位相機對焦機構及數位相機模 組。 [0002] 【先前技術】 目前，具有拍攝功能之手機在市場上屢見不鮮，具有拍 攝功能已成為消費者在選購手機時的重要考量因素，生 産廠家們亦極力開發迎合消費者需求之産品。然而由於 體積所限制，目前大多數拍攝手機之數位相機均係固定 焦距，而固定焦距之鏡頭對成像尤其係近處拍攝來說易 造成無法清晰聚焦之狀況，這將大大限制手機相機之拍 攝效果。 [0003] 而傳統數位相機之對焦機構，其—般採用普通傳動裝置 如直流馬達或者步進馬達來帶動相關光學組件，以進行 對焦動作，其體積大且耗電量較大，不適合裝配於手機 ;且當相關光學組件之鏡片數較多時，傳動裝置帶動該 光學組件也有一定困難；另，多數習知數位相機模組進 行對焦動作時，裝有鏡片組之鏡筒與影像感測器間會產 生相對旋轉，導致鏡片組無法對準影像感測器。 [0004] 有鑑於此，提供一種體積小、耗電量少且可避免鏡片組 與影像感測器偏心問題之手機數位相機對焦機構及手機 數位相機模組實為必要。 【發明内容】 [0005]本發明之目的在於提供一種體積小、耗電量少之手機數 093138273 表單編號Α0Ι01 第5頁/共15頁 1003146534-0 [0006]1353157 —- » 年 04月 27 日 本么明之另一目的在於提供— „„ .. 裡J避免鏡片組與影傻咸1353157 VI. Description of the Invention: [Technical Field] [0001] The present invention relates to a digital camera, a mechanism and a digital camera module, and more particularly to a digital camera focusing mechanism and a digital camera for a mobile phone Module. [0002] [Prior Art] At present, mobile phones with shooting functions are not uncommon in the market, and the shooting function has become an important consideration factor for consumers when purchasing mobile phones, and manufacturers are also trying to develop products that cater to consumers' needs. However, due to the limitation of volume, most of the digital cameras that shoot mobile phones are fixed focal lengths, and the fixed focal length lens is easy to focus on the imaging, especially in close proximity, which will greatly limit the shooting effect of the mobile phone camera. . [0003] The focus mechanism of the conventional digital camera generally uses an ordinary transmission device such as a DC motor or a stepping motor to drive the relevant optical components to perform a focusing operation, which is large in size and consumes a large amount of power, and is not suitable for assembly in a mobile phone. And when the number of lenses of the relevant optical component is large, the transmission device also has certain difficulties in driving the optical component; in addition, when most of the conventional digital camera modules perform the focusing operation, the lens barrel and the image sensor are equipped with the lens group. Relative rotation occurs, causing the lens set to fail to align with the image sensor. [0004] In view of the above, it is necessary to provide a mobile phone digital camera focusing mechanism and a mobile digital camera module which are small in size, low in power consumption, and capable of avoiding eccentricity problems of the lens group and the image sensor. SUMMARY OF THE INVENTION [0005] The object of the present invention is to provide a small size, low power consumption of the number of mobile phones 093138273 Form No. Ι 0Ι01 Page 5 / Total 15 pages 1003146534-0 [0006] 1353157 --- » Year 04 27 Japan Another purpose of Mo Ming is to provide - „„ .. in J to avoid lens group and shadow silly
測-偏心問題之手機數位相機模組。 、MMobile phone digital camera module for measuring - eccentricity problems. , M
[0007] =本發明之目的，提供一種手機數位相機對焦機構 ^ ★套筒、-外筒、-音圏激勵器及-内筒；其中 立絲筒-端固定有一蓋體；該外筒内設有内螺紋；該 音圈激勵H包括線圈及磁性件，該線圈纏繞於外筒外且 處於磁性件之磁場t;該内筒滑動套設於套筒内且其不 能繞套筒純旋轉’該㈣外設有與外筒内螺紋相配合 之外螺紋’其内固定有影像感測器或鏡片組；該外筒套 設於内筒外且與内筒相嚙合，該蓋體將外筒限制於該套 筒内’且該外筒不能沿套筒軸向移動。 [0008] 位相機對焦機構。 為實現本發明之另一目的，提供一種手機數位相機模組 ，包括：一鏡頭、一套筒'一外筒、一音圈激勵器及一 内筒’其中，該一鏡頭包括一鏡筒及一鏡片組’該鏡片 組固定於該鏡筒内；該套筒一端固定有一蓋體’該蓋體 外固定有該鏡頭；該外筒内設有内螺紋；該音圈激勵器 包括線圈及磁性件，該線圈纏繞於外筒外且處於磁性件 之磁場中；該内筒滑動套設於套筒内且其不能繞套筒轴 線旋轉，該内筒外設有與外筒内螺紋相配合之外螺紋， 其内固定有影像感測器；該外筒套設於内筒外且與内筒 相嚙合，該蓋體將外筒限制於該套筒内，且該外筒不能 沿套筒軸向移動；該鏡頭之光線可達到該影像感測器上 093138273 表單編號A0101 第6頁/共15頁 1003146534-0 100年04月27日倐正替换π 1353157 [0009] 相較習知技術，本發明手機數位相機對焦機構採用小型 音圈激勵器來驅動影像感測器或鏡片組改變位置，使像 距改變以進行對焦動作，其體積小、耗電量少；本發明 手機數位相機模組之兩鏡筒之軸線呈一角度，可減小該 手機數位相機模組之高度；另，由於鏡片組於影像感測 器之間沒有相對旋轉，可避免偏心問題。 【實施方式】 [0010] 本發明之手機數位相機對焦機構適用於具數位相機之手 機、PDA(Personal Digital Assistant，即個人數位 助理器）等便攜式電子裝置。 [0011] 請參閱第一圖所示，該手機數位相機對焦機構包括一套 筒10，其内部收納有一音圈激勵器20、一外筒23、一内 筒31及一影像感測器32。 [0012] 該套筒10—端内部凸設有一環形凸台101，該凸台101内 壁上沿軸向開設有一滑槽102。該套筒10還包括一蓋體11 ，該蓋體11中部具有一通孔110，該蓋體11可固定於套筒 10之遠離凸台101之一端。 [0013] 該音圈激勵器20包括一纏繞於外筒23外之線圈22及一磁 性件21。該磁性件21係四塊弧形永久磁鐵，其採用四極 靴設計，環繞固定於套筒10内壁上。該外筒23内壁上設 有内螺紋231。 [0014] 該内筒31係具有一開口之圓筒，其具有開口一端設有外 螺紋311，其此端可套設於外筒23内並與外筒23相嚙合。 該内筒31另一端可容置於套筒10環形凸台101内，内筒 093138273 表單編號A0101 第7頁/共15頁 1003146534-0 1353157 100年04月27日修正替換頁 31此端設有滑塊312且該滑塊31 2可容置於凸台101内壁 之滑槽102内。該内筒31之長度小於凸台101與外筒23之 長度和。該影像感測器32固定設置於内筒31内，且該内 筒31之開口由一透明板體313封閉，以避免灰塵等雜質進 入該内筒31影響該影像感測器3 2感測影像之質量。 [0015] 該套筒10具蓋體11之一端可固定一鏡頭40，且該鏡頭40 對準該影像感測器32。該鏡頭40包括一第一鏡筒41，其 内裝有第一鏡片組43，其一端由一玻璃板46封閉；一第 二鏡筒42，其内裝有第二鏡片組44，所述第二鏡筒42與 第一鏡筒41軸線成一定角度相連，本實施例中兩鏡筒軸 向垂直；一反射裝置45，該反射裝置45位於第一鏡筒41 和第二鏡筒42連接處，並且使光線從第一鏡筒41射到第 二鏡筒42内；一紅外截止濾光片47，其位於第二鏡片組 44後，用於濾除來自於被攝物反射之光線中之紅外線， 從而提高成像品質。該鏡頭40於兩垂直方向設置不同鏡 * 片組，且用反射裝置45來將光線從第一鏡片組43引導到 第二鏡片組44，從而可減小該鏡頭40之高度。 [0016] 裝配時，將内部固持有影像感測器32之内筒31由套筒10 具凸台101 —端放入固定有磁性件21之套筒10内且使滑塊 31 2與凸台101之滑槽102相配合，然後將纏繞有線圈22 之外筒23旋至内筒31上，使該線圈22位於磁性件21之磁 場中，之後將蓋體11固定於外筒23端部，將線圈22限制 於環形凸台101與蓋體11之間，最後將鏡頭40固定於套筒 10— 端。 [0017] 使用時，該音圈激勵器20之線圈22連接手機主電路板以 093138273 表單編號A0101 第8頁/共15頁 1003146534-0 1353157 100年04月27曰梭正頁 獲取電源。當手機啟動對焦功能時，該手機之微處理器 即控制適當電流通過該線圈22，該通電線圈22在磁性件 21磁場之作用下帶動外筒23發生轉動，由於該線圈22被 限制於凸台101與蓋體11之間不能沿軸向移動’且内筒31 上之滑塊31 2被卡設於凸台1〇1之滑槽102内而使内筒31 不能轉動，因此在外筒23内螺紋231與内筒31外嫘紋311 之嚙合下，該内筒31沿滑槽102直線滑動；該影像感測器 32隨該内筒31移動，其與鏡頭間距離發生變化，便可進 行對焦動作。使用者可通過手機屏幕預覽欲拍攝之影像 ，當影像清晰時，使用者可停止其對焦功能。 [0018] 可以理解，該手機數位相機對焦機構之内筒31内亦可固 持鏡片組，而影像感測器3 2可固定設置於鏡片組之光路 中，可藉由内筒31帶動鏡片組移動以改變鏡片組與影像 感測器32間之距離，最終達到對焦之目的。 [0019] 進-步可以理解，該手機數位相機^機構進―步可包 括—位置感㈣（圖未㈤，其與影像制器32相電連接 ^置：測器可檢測影像感測器32感測影像之清晰度 並傳送訊娩至手機之微處理 土 a & 予機微處理器通過此信 _線圈22之電流以控制線圈22之旋轉，最終控 制影像感測器32之移動位置 ’運到實現自動對焦之功能 [0020] 093138273 綜上所述，本發明符合發明專利申請。惟，以上所述者僅為本2件，爰依法提出專利 逆社莊 .本發明之較佳實施例，舉凡 熟悉本案技藝之人士，在、援依 t.. 本案創作精神所作之等 效修飾或變化，&應包含於以表單編號_ 第9頁/共15頁之申請專利範圍内。 1003146534-0 1353157 100年04月27日修正替换頁、 【圖式簡單說明】 [0021] 第一圖係本發明手機數位相機模組之刮示圖。 【主要元件符號說明】 [0022] 套筒：10 [0023] 凸台：101 [0024] 滑槽：102 [0025] 蓋體：11 [0026] 通孔：110 [0027] 音圈激勵器：20 [0028] 磁性件：21 [0029] 線圈：22 [0030] 外筒：23 [0031] 内螺紋：231 [0032] 内筒：31 [0033] 外螺紋：331 [0034] 滑塊：312 [0035] 透明板體：313 [0036] 影像感測器：32 [0037] 鏡頭：40 [0038] 第一鏡筒：41 表單編號A0101 093138273 第10頁/共15頁 1003146534-0 1353.157 100年04月27日梭正替换頁 [0039] 第二鏡筒：42 [0040] 第一鏡片組：43 [0041] 第二鏡片組：44 . [0042] 反射裝置：45 [0043] 玻璃片：46 [0044] 紅外截止濾波片：47 093138273 表單編號A0101 第11頁/共15頁 1003146534-0[0007] = the object of the present invention is to provide a mobile phone digital camera focusing mechanism ^ ★ sleeve, - outer cylinder, - sound hammer actuator and - inner cylinder; wherein the vertical drum - end is fixed with a cover; An internal thread is provided; the voice coil excitation H includes a coil and a magnetic member, and the coil is wound around the outer cylinder and is in a magnetic field t of the magnetic member; the inner cylinder is sleeved in the sleeve and cannot be rotated purely around the sleeve' The (4) is externally provided with an external thread of the outer cylinder, and an image sensor or a lens group is fixed therein; the outer cylinder is sleeved outside the inner cylinder and meshes with the inner cylinder, and the cover body is an outer cylinder Restricted within the sleeve 'and the outer cylinder cannot move axially along the sleeve. [0008] Camera focus mechanism. In order to achieve another object of the present invention, a mobile phone digital camera module includes: a lens, a sleeve, an outer cylinder, a voice coil actuator, and an inner cylinder, wherein the lens includes a lens barrel and a lens group 'the lens group is fixed in the lens barrel; the sleeve is fixed at one end with a cover body; the lens body is fixed with the lens; the outer tube is provided with an internal thread; the voice coil actuator includes a coil and a magnetic piece The coil is wound around the outer cylinder and is in the magnetic field of the magnetic member; the inner cylinder is sleeved and sleeved in the sleeve and cannot rotate around the sleeve axis, and the inner cylinder is provided with the internal thread of the outer cylinder. The external thread has an image sensor fixed therein; the outer sleeve is sleeved outside the inner cylinder and meshes with the inner cylinder, the cover body limits the outer cylinder to the sleeve, and the outer cylinder cannot be along the sleeve shaft Move to the camera; the light of the lens can reach the image sensor 093138273 Form No. A0101 Page 6 / Total 15 Page 1003146534-0 100 April 27 倐 Replace π 1353157 [0009] Compared with the prior art, this Invented the mobile phone digital camera focus mechanism using a small voice coil actuator to drive The image sensor or the lens group changes position, the image distance is changed to perform the focusing action, and the volume is small and the power consumption is small; the axis of the two lens barrels of the mobile phone digital camera module of the invention is at an angle, which can reduce the mobile phone The height of the digital camera module; in addition, since the lens group has no relative rotation between the image sensors, the eccentricity problem can be avoided. [Embodiment] The focus mechanism of the mobile phone digital camera of the present invention is suitable for a portable electronic device such as a digital camera or a PDA (Personal Digital Assistant). [0011] Referring to the first figure, the focus mechanism of the mobile phone digital camera comprises a set of cylinders 10, which internally houses a voice coil actuator 20, an outer cylinder 23, an inner cylinder 31 and an image sensor 32. [0012] An annular boss 101 is protruded from the inner end of the sleeve 10, and a sliding groove 102 is defined in the inner wall of the boss 101. The sleeve 10 further includes a cover body 11. The cover body 11 has a through hole 110 in the middle thereof. The cover body 11 can be fixed to one end of the sleeve 10 away from the boss 101. The voice coil actuator 20 includes a coil 22 wound around the outer cylinder 23 and a magnetic member 21. The magnetic member 21 is a four-arc permanent magnet which is designed to be attached to the inner wall of the sleeve 10 by a four-pole shoe design. The inner wall of the outer cylinder 23 is provided with an internal thread 231. The inner cylinder 31 has an open cylinder having an open end provided with an external thread 311 which is sleeved in the outer cylinder 23 and engages with the outer cylinder 23. The other end of the inner cylinder 31 can be accommodated in the annular boss 101 of the sleeve 10, the inner cylinder 093138273 Form No. A0101 Page 7 / 15 pages 1003146534-0 1353157 Correction replacement page 31 of April 27 The slider 312 and the slider 31 2 can be received in the sliding slot 102 of the inner wall of the boss 101. The length of the inner cylinder 31 is smaller than the length of the boss 101 and the outer cylinder 23. The image sensor 32 is fixedly disposed in the inner cylinder 31, and the opening of the inner cylinder 31 is closed by a transparent plate 313 to prevent impurities such as dust from entering the inner cylinder 31 to affect the image sensing device 3 2 Quality. [0015] The sleeve 10 has one end of the cover 11 for fixing a lens 40, and the lens 40 is aligned with the image sensor 32. The lens 40 includes a first lens barrel 41 having a first lens group 43 having one end closed by a glass plate 46, and a second lens barrel 42 having a second lens group 44 therein. The two lens barrels 42 are connected at an angle to the axis of the first lens barrel 41. In this embodiment, the two lens barrels are axially perpendicular; a reflecting device 45 is located at the junction of the first lens barrel 41 and the second lens barrel 42. And illuminating the light from the first lens barrel 41 into the second lens barrel 42; an infrared cut filter 47 located behind the second lens group 44 for filtering out light reflected from the object Infrared, which improves image quality. The lens 40 is provided with different mirrors in two vertical directions, and the reflecting means 45 is used to guide light from the first lens group 43 to the second lens group 44, so that the height of the lens 40 can be reduced. [0016] During assembly, the inner cylinder 31 of the inner solid image sensor 32 is placed in the sleeve 10 with the magnetic member 21 fixed by the sleeve 10 with the boss 101 end and the slider 31 2 and the convex The chute 102 of the table 101 is matched, and then the outer cylinder 23 around which the coil 22 is wound is screwed onto the inner cylinder 31, so that the coil 22 is placed in the magnetic field of the magnetic member 21, and then the cover 11 is fixed to the end of the outer cylinder 23. The coil 22 is confined between the annular boss 101 and the cover 11, and finally the lens 40 is fixed to the sleeve 10 end. [0017] In use, the coil 22 of the voice coil actuator 20 is connected to the main circuit board of the mobile phone to 093138273 Form No. A0101 Page 8 of 15 1003146534-0 1353157 100年04月27曰 Shuttle page Get the power. When the mobile phone activates the focusing function, the microprocessor of the mobile phone controls the appropriate current to pass through the coil 22. The energizing coil 22 drives the outer cylinder 23 to rotate under the magnetic field of the magnetic member 21, since the coil 22 is limited to the boss. The slider 101 and the cover 11 are not movable in the axial direction, and the slider 31 2 on the inner cylinder 31 is caught in the sliding groove 102 of the boss 1〇1 so that the inner cylinder 31 cannot rotate, and thus is in the outer cylinder 23. When the thread 231 is engaged with the outer rib 311 of the inner cylinder 31, the inner cylinder 31 linearly slides along the sliding slot 102; the image sensor 32 moves with the inner cylinder 31, and the distance between the lens and the lens changes to focus. action. The user can preview the image to be captured through the screen of the mobile phone, and when the image is clear, the user can stop the focusing function. [0018] It can be understood that the lens assembly can be held in the inner cylinder 31 of the focusing mechanism of the mobile phone digital camera, and the image sensor 32 can be fixedly disposed in the optical path of the lens group, and the lens group can be moved by the inner cylinder 31. In order to change the distance between the lens group and the image sensor 32, the focus is finally achieved. [0019] Further, it can be understood that the mobile phone digital camera can include a position sense (four) (not shown in FIG. 5), which is electrically connected to the image controller 32. The detector can detect the image sensor 32. Sensing the sharpness of the image and transmitting the micro-processing soil to the mobile phone to the mobile phone. The microprocessor sends the current of the signal to the coil 22 to control the rotation of the coil 22, and finally controls the moving position of the image sensor 32. To achieve the function of autofocus [0020] 093138273 In summary, the present invention is in accordance with the invention patent application. However, the above description is only the second one, and the patent is proposed according to law. Anyone who is familiar with the skill of this case, the equivalent modification or change made in the spirit of the creation of the case, shall be included in the scope of the application for the form number _ 9 pages / 15 pages. 1003146534-0 1353157 Correction of replacement page on April 27, 100, [Simplified description of the drawing] [0021] The first figure is a scraping diagram of the digital camera module of the mobile phone of the present invention. [Description of main component symbols] [0022] Sleeve: 10 [ 0023] Boss: 101 [0024] Chute 102 [0025] Cover: 11 [0026] Through hole: 110 [0027] Voice coil actuator: 20 [0028] Magnetic member: 21 [0029] Coil: 22 [0030] Outer cylinder: 23 [0031] Internal thread: 231 [0032] Inner cylinder: 31 [0033] External thread: 331 [0034] Slider: 312 [0035] Transparent plate: 313 [0036] Image sensor: 32 [0037] Lens: 40 [0038] First Tube: 41 Form No. A0101 093138273 Page 10 of 15 1003146534-0 1353.157 April 27th, 2014 Shuttle replacement page [0039] Second barrel: 42 [0040] First lens group: 43 [0041] Second lens group: 44. [0042] Reflecting device: 45 [0043] Glass piece: 46 [0044] Infrared cut filter: 47 093138273 Form number A0101 Page 11 of 15 1003146534-0