1337666 (二）本代表圖之元件符號簡 單說明 兩段式對焦裝置 100 鏡筒 10 第一鏡片組 11 第二鏡片組 12 正擋部 13 載具 14 容置空間 140 電磁裝置 15 可變電流電路 20 八本案若有化學式時’請揭示最能顯示發明特徵的化學式: 九、發明說明： 【發明所屬之技術領域】 本發明涉及-種數_機之兩段式對絲置，尤其是涉及電子裝 置用數位相機之兩段式對焦裝置。 【先前技術】 心電子裝置（如手機、PDA等）用數位相機之光學模組大都為定 焦設計_而無法實現變_。而_到更遠之物體需要, 物距’因《要調整鏡頭之位置，傳統數軸機之對焦機構—般採用 馬達及傳峨構軸鏡片軸進行對焦動作，其需要配置複雜的傳動 機構才能實施，無法使用在體積較小的電子裝置上。 為使小型裝置賴位減可實現對焦舰，f界採_性驅動鏡 頭移動達到自動功能，如中國大陸專利第卿心，並揭一 卜_自動_構，_機構在觀元件封_置室上= 设-感應線圈，於感光元件的上端結合_磁性元件i 而 性元件，該彈細L於容置崎卜:= 4 時’微處理n㈣適當電麵過錢賴，產生與雜元件相斥之磁 獅感光元件移動’通過控制電流的大小以控制感光元件的移動 量’進行㈣難_。完_紐，停止躲随電，即無磁力之 作用，感光it件在彈性元件之作用下恢復到初始位置。 准習知技術之相機自動對焦結構藉由感應線圈、磁性元件及彈 杜讀之結合貫現對焦舰，結顧H縣完錢藉由彈性元 件之彈性使感光元件恢復初始位置，對彈性元件之彈性範圍、感光元 件之容置室空間亦有嚴格要求。 因此，提供-種結構簡單、磁力實現對焦功能之裝置實為必須。 【發明内容】 ' 本發明目的在於提供一種結構簡單、磁力實現對焦功能的兩段式 對焦裝置。 為實現本發明之目的’本發明之技術方案係：一種兩段式對焦裝 置’包括含有可實現兩段式舰魏m组、第二鏡片組的鏡 筒，鏡筒之-端延伸形成-止卿，該第二鏡脸固定在鏡筒之另一 端’-電磁裝置固定於鏡筒内且位於該第二鏡片組無止购之間， —載具滑動地與鏡肢合，且位於電魏置與止卿之間，該載具上 合置有第-鏡片組，該電磁裝置通電後產生之磁力吸引或排斥該栽 具，以使該第一鏡片組靠近或遠離該第二鏡片組。 相較於習知技術，本發明兩段式對焦裝置藉助驅動線圈產生之磁 力方向帶動安裝在載具上之第—鏡片組移動，使之移動至適當位置從 而可將焦點設置在遠側位置或近麻置上以實現兩段式對焦，因而該 兩段式對焦裝置結構簡單。. 【實施方式】 °月蒼閱第—圖、第二圖所示’本發明之兩段式對焦裝置100包括 一鏡筒10、一栽具14及一電磁裝置15。 其中，錢筒1〇具有第一鏡片組]^、第二鏡片組12，第二鏡片 組12用勝水固定於鏡筒1G —端，鏡筒H)另-端靠近底部沿圓週整體 突出形成止指部13。 載-14係圓电形結構，本實施例中為圓環性永久磁鐵，其外徑略 J於鏡间1G之㈣，是以，該鏡筒1Q可將載具μ套於其卜該載具 14 -端沿圓週整體凹陷形成—階梯形容置空間_，該容置空間⑽ 可Μ子谷置第鏡片組u ’第一鏡片組u亦可由膠水固定於該容置空 間140中。 該電磁裝置15通電可產生感應磁場，其具有二接口（圖未示）， 該電磁裝置15可域應制、電磁_等。該電磁裝置π係圓環形 冓-卜仅略J、於鏡筒10之内控，該鏡筒可將該電磁裝置巧套 於其中。電磁裝置15之二接口分別與—可變電流電路卻之輸入、輸 出端口相連接，電磁裝置15可士败 置15 了由膠水固定於鏡筒10之内壁’且該電 磁裝置位於第二鏡片·組12與止擒部13之間。 當可變電流電路2〇之雷产岭λ s + "机輸人至電磁裝置15巾時，電磁裝置15 產生之磁力可將載具14吸引或 載具14於磁力作用下可沿該 鏡筒〗〇之内壁於電磁裝置15盥 〃止祜邛13之間上、下滑動，載具14 之上下滑動帶動安裝於其上的第一 鏡片··且II滑動，從而使第一鏡片組 1337666 11、第二鏡片組12之組合光學系統之焦距發生變化，因而可實現兩段 式對焦。 本實施方式定義當載具14位於止擋部13處時，第一鏡片組11與 第二鏡片組12之組合可使得該兩段式對焦裝置100具有第一對焦狀 態，載具14與電磁裝置15相接觸時具第二對焦狀態。 組裝時，首先將第一鏡片組丨1固定於載具14之容置空間14〇中； 然後將載具14、電磁裝置15先後放入鏡筒1〇中，並使載具μ與止擋 部13相接觸；根據兩段式對焦裝置丨⑼之兩焦距之關係確定電磁裝置 與止擋部13之間隔，並加以固定電磁裝置15 ;最後，保持第一鏡 片組11之位置不變，移動第二鏡片組12使其與第一鏡片組u進行對 焦操作，對焦後固定第二鏡片組12。 當啟動兩段式對焦功能時，處理器（圖未示）控制可變電流電路 20產生適當之電流輸人至電磁裝置15，使電磁裝置15之感應磁場之 磁力與載具14產生相吸引之作用，安裝於載具14上之第—鏡片組^ ~鏡片組12移動，從而使第一鏡片組u與第二1337666 (2) Element symbol of the representative diagram Brief description Two-stage focusing device 100 Lens barrel 10 First lens group 11 Second lens group 12 Positive portion 13 Carrier 14 Accommodating space 140 Electromagnetic device 15 Variable current circuit 20 If there are chemical formulas in the eight cases, please disclose the chemical formula that best shows the characteristics of the invention: IX. Description of the invention: [Technical field of the invention] The present invention relates to a two-stage pair of filaments of a number-machine, in particular to an electronic device A two-stage focusing device with a digital camera. [Prior Art] Most of the optical modules of digital electronic devices (such as mobile phones, PDAs, etc.) use a digital camera for the fixed focus design. And _ to the farther object needs, the object distance 'Because of the position of the lens to adjust the focus of the traditional digital axis machine - the use of the motor and the transmission axis lens axis for focusing action, it needs to configure a complex transmission mechanism to implement Cannot be used on smaller electronic devices. In order to reduce the size of the small device, the focus can be achieved. The f-mode drive lens moves to an automatic function, such as the Chinese patent, the heart of the Qing dynasty, and reveals a _ automatic _ structure, _ mechanism in the view of the component seal _ room Upper = set - induction coil, at the upper end of the photosensitive element combined with _ magnetic element i and the sexual element, the elastic L is used to accommodate the saturation: = 4 'micro-processing n (four) appropriate electrical surface over the money, resulting in the production of miscellaneous components Rejecting the magnetic lion photosensitive element to move 'by controlling the magnitude of the current to control the amount of movement of the photosensitive element' (four) difficult _. After the _ button, stop hiding with electricity, that is, no magnetic force, the photosensitive member returns to the initial position under the action of the elastic member. The camera autofocus structure of the prior art technology combines the induction coil, the magnetic element and the elastic read-to-read combination to achieve the focus ship, and the H-country money is restored by the elasticity of the elastic element to restore the photosensitive element to the initial position. The elastic range and the accommodation space of the photosensitive element are also strictly required. Therefore, it is necessary to provide a device having a simple structure and a magnetic force to achieve a focusing function. SUMMARY OF THE INVENTION The object of the present invention is to provide a two-stage focusing device which has a simple structure and a magnetic force to achieve a focusing function. In order to achieve the object of the present invention, the technical solution of the present invention is as follows: a two-stage focusing device includes a lens barrel including a two-stage type Wei Wei group and a second lens group, and the end extension of the lens barrel is formed. Qing, the second mirror face is fixed at the other end of the lens barrel'-the electromagnetic device is fixed in the lens barrel and is located between the second lens group without stoppage, the carrier is slidingly combined with the mirror limb, and is located in the electric Wei Between the setting and the stop, the carrier is provided with a first lens group, and the magnetic force generated by the electromagnetic device attracts or repels the device to bring the first lens group closer to or away from the second lens group. Compared with the prior art, the two-stage focusing device of the present invention drives the movement of the first lens group mounted on the carrier by the direction of the magnetic force generated by the driving coil, and moves it to an appropriate position to set the focus to the distal position or The two-stage focusing device is simple in structure, so that the two-stage focusing device is simple in structure. [Embodiment] The two-stage focusing apparatus 100 of the present invention includes a lens barrel 10, a plant 14 and an electromagnetic device 15. Wherein, the money cartridge 1 has a first lens group and a second lens group 12, and the second lens group 12 is fixed to the lens barrel 1G with the water, and the other end of the lens tube H) is integrally formed along the circumference near the bottom. The finger stop 13 is provided. The carrier-type 14-circular electric structure, in this embodiment is a circular permanent magnet, the outer diameter of which is slightly J (the fourth) between the mirrors (1), so that the lens barrel 1Q can be used to clamp the carrier to the carrier. The 14-end is integrally recessed along the circumference to form a stepped accommodating space _, and the accommodating space (10) can be placed in the accommodating space 140 by the first lens group u. The electromagnetic device 15 is energized to generate an induced magnetic field, and has a two interface (not shown), and the electromagnetic device 15 can be fabricated, electromagnetically, and the like. The electromagnetic device π is a circular ring 卜-b, which is only J, and is controlled inside the lens barrel 10, and the lens barrel can fit the electromagnetic device therein. The two interfaces of the electromagnetic device 15 are respectively connected to the input and output ports of the variable current circuit, and the electromagnetic device 15 can be disposed 15 by the glue fixed to the inner wall of the lens barrel 10 and the electromagnetic device is located in the second lens. Between the group 12 and the dam portion 13. When the variable current circuit 2 雷雷产岭 λ s + " machine input to the electromagnetic device 15 towel, the magnetic force generated by the electromagnetic device 15 can attract the carrier 14 or the carrier 14 under the action of the magnetic force along the mirror The inner wall of the cylinder is slid up and down between the electromagnetic device 15 and the stop 13 , and the carrier 14 is slid upward and downward to drive the first lens mounted on the second lens and the second lens to slide, so that the first lens group 1337666 11. The focal length of the combined optical system of the second lens group 12 changes, thereby enabling two-stage focusing. The present embodiment defines that when the carrier 14 is located at the stop portion 13, the combination of the first lens group 11 and the second lens group 12 can cause the two-stage focusing device 100 to have a first in-focus state, the carrier 14 and the electromagnetic device. The 15th contact has a second focus state. When assembling, the first lens set 丨1 is first fixed in the accommodating space 14〇 of the carrier 14; then the carrier 14 and the electromagnetic device 15 are sequentially placed in the lens barrel 1〇, and the carrier μ and the stop are arranged. The portion 13 is in contact with each other; the distance between the electromagnetic device and the stopper portion 13 is determined according to the relationship between the two focal lengths of the two-stage focusing device 丨 (9), and the electromagnetic device 15 is fixed; finally, the position of the first lens group 11 is kept unchanged, and moved The second lens group 12 is caused to perform a focusing operation with the first lens group u, and the second lens group 12 is fixed after focusing. When the two-stage focusing function is activated, the processor (not shown) controls the variable current circuit 20 to generate an appropriate current to be input to the electromagnetic device 15, so that the magnetic force of the induced magnetic field of the electromagnetic device 15 is attracted to the carrier 14. Actuating, the lens group 12 mounted on the carrier 14 moves to the lens group 12, so that the first lens group u and the second lens group
機可在該料Τ進行拍攝。 在載具14帶動下向第二鏡片: 鏡片組12之間間距發生變動 二鏡片組12之組合光學系統 15相接觸時，此時供接 第對焦狀悲运回第一對焦狀態時，處理器控制可變電流電 7 路20產生一與上述方向相反之電流輸入至電磁裝置 J5 1之电磁裝置 之磁場與載具14之磁場產生相排斥之磁力，安裝於載具】4上之第 〜鏡片組Π在載具14之作用下反方向朝第一對焦狀態位置移動，由 於止播部13之作用可以限定第—鏡#組u之移動f，因而相機可在 該模式下進行拍攝。 藉由改變通過電磁裝置15之電流方向，改變第—鏡片組^之移 ^方向’從而可達到第—鏡片組^與第二鏡版π之組合焦距發生 變化，使相機具有兩段式對焦功能。 综上所述，本發明符合發明專利要件，爰依法提出專利申請。惟， 斤述者僅為本發明之較佳實施例，舉凡熟悉本發明技藝之人士， 在援依本發明創作精神所作之等效修飾或變化皆應包含於以下之申 請專利範圍内。 【圖式簡單說明】 第-圖係本發明兩段式對焦裝置位於第—焦距之示意圖。 圖係本發明兩段式對焦裝置位於第^、距之示意圖。 【主要元件符號說明】 100 鏡筒 10 11 第二鏡片組 12 13 載具 14 140 電磁裝置 15 20 兩段式對焦装置 第一鏡片組 止擋部 容置空間 可變電流電路The machine can shoot at this magazine. When the carrier 14 is driven to the second lens: when the spacing between the lens groups 12 is changed, when the combined optical system 15 of the lens group 12 is in contact, the processor is connected to the first focusing state at this time, the processor The control variable current electric circuit 7 generates a magnetic force which is input to the electromagnetic device of the electromagnetic device J5 1 and is generated by the magnetic field of the electromagnetic device J5 1 and is generated by the magnetic field of the carrier 14 and is mounted on the carrier 4 The group 移动 moves in the opposite direction toward the first in-focus state by the action of the carrier 14, and the movement of the first mirror # group u can be limited by the action of the stop portion 13, so that the camera can take a picture in this mode. By changing the direction of the current passing through the electromagnetic device 15, changing the direction of movement of the first lens group ^, the combined focal length of the first lens group ^ and the second mirror plate π can be changed, so that the camera has a two-stage focusing function. . In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the present invention is intended to be a preferred embodiment of the present invention, and equivalent modifications and variations of the present invention are intended to be included within the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic diagram of the two-stage focusing device of the present invention at the first focal length. The figure is a schematic diagram of the two-stage focusing device of the present invention. [Main component symbol description] 100 Lens barrel 10 11 Second lens group 12 13 Carrier 14 140 Electromagnetic device 15 20 Two-stage focusing device First lens group Stop portion accommodating space Variable current circuit