1338184 099年12月20日修正替换頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種兩段式對焦機構，尤其係關於一種適 用於攜帶式電子裝置之兩段式對焦機構。 【先前技術】 [0002] 目前，攜帶式電子裝置不僅限於通話及一般訊息管理之 功能，其亦向著多媒體通訊方向發展，如視頻及圖像等 訊息之傳輸，而具攝像功能之攜帶式電子裝置即可滿足 這些要求。 [0003] 近年來，由於數位技術迅速發展，具攝像功能之攜帶式 電子裝置之應用越來越普及:。惟，其大部份攜帶式電子 - ... · 裝置用鏡頭模組僅具備數位對焦、功能，而並不具備光學 對焦功能。如三星SCH-E159之130萬畫素鏡頭模組、明 基S700之130萬畫素鏡頭模組等，均係支持連續拍照功能 及數位對焦功能，惟，並不支持光學對焦功能。 [0004] 目前，數位相機上廣泛運用具備3倍以上光學對焦功能之 鏡頭模組，惟，其結構複雜、組裝不便，通常使用電機 或磁性物質來實現對焦功能，並且，進行光學對焦操作 時，因通電之緣故，其耗電。因此，傳統之數位相機用 鏡頭模組不易直接應用於行動電話等攜帶式電子裝置中 〇 [0005] 有鑒於此，提供一種結構簡單、組裝方便及不耗電之兩 段式對焦機構實為必要。 【發明内容】 093137363 表單編號A0101 第3頁/共11頁 0993454819-0 1338184 099年12月20日修正替换頁 [0006] 本發明之目的在於提供一種結構簡單、組裝方便及不耗 電之兩段式對焦機構。 [0007] 本發明提供之兩段式對焦機構包括一鏡頭模組、一基座 及一影像感測器，該鏡頭模組内安置有光學元件，該鏡 頭模組及該影像感測器均容置於基座内，其中，該鏡頭 模組包括一套筒，該套筒之一端設置有突緣，套筒之側 壁上設置有至少一容置槽，所述容置槽内可滑動地容置 有一定位塊及一驅動定位塊滑動之彈簧；該基座上設置 有相互間隔之一近拍定位突台及一遠拍定位突台，該基 座與該鏡頭模組之間還設有回位彈簧；該鏡頭模組於基 座内沿光軸方向移動至一近满彈簧提供 一彈性力使該突緣與該近拍卡一:鏡頭模組 在基座内沿光軸方向移動至一遠拍位置時，所述容置槽 内之彈簧驅動定位塊與該遠拍定位突台卡配。 [0008] 與現有之鏡頭模組相比，本發明兩段式對焦機構利用特 殊之套筒機構，使其套筒於基座内沿光軸方向移動，並 且利用簡單之按壓操作可定位於兩個位置，從而實現對 焦功能，其結構簡單、組裝方便且不耗電。 【實施方式】 [0009] 請參閱第一圖及第二圖，本發明兩段式對焦機構包括一 鏡頭10、一套筒20及一基座30，其中，該鏡頭10内安置 有光學元件101、102，該鏡頭10容置於該套筒20内以及 該套筒20容置於基座30内，該基座30内進一步容置有影 像感測器40，該套筒20於基座30内沿光軸方向移動，並 且可定位於兩個位置。 093137363 表單編號A0101 第4頁/共11頁 0993454819-0 1338184 099年12月20日修正替換頁 [0010] 鏡頭1 0上設置有通過光線之通孔1 03，該通孔1 0 3由一透 明蓋體104蓋住，以防止灰塵等對光學元件101之污染， 並且該鏡頭1 0之外側圓周面上設置有外螺紋1 05。 [0011] 套筒20之内側壁上設置有内螺紋204，該内螺紋204與鏡 頭1 0之外螺紋1 05相配合，而使鏡頭1 0容置於該套筒20 之内。其中，該鏡頭10之旋進深度於鏡頭廠家統一調整 並固定，使該鏡頭10固定於套筒20内之適當位置之處。 [0012] 套筒20之側壁上按一定角度設置有複數個容置槽，本實 施方式中設置兩個容置槽20 5a、205b，該容置槽20 5a、 205b内對應的容置有彈簧201a、201b及定位塊2 02a、 202b。該套筒20之一端上設置有突緣203。 [0013] 基座30上設置有近拍定位突台303與遠拍定位突台304。 在近拍模式下，該近拍定位突台303可擋住套筒20之突緣 203 ;在遠拍模式下，該遠拍定位突台304可擋住套筒20 之定位塊202a、202b。 [0014] 基座30上開設有插入孔305a、305b，該插入孔305a、 305b内插入有回位按鍵302a、302b。 [0015] 基座30還包括置放影像感測器40之底板306，該底板306 與套筒20之間設置有回位彈簧301a、301b。 [0016] 底板306之上置放影像感測器40，該影像感測器40可以係 CCD (Charge Coupled Device，電荷搞合器）影像感 測器，也可以係CMOS (Complementary Metal-Oxide Semiconductor，互補金屬氧化物半導體）影像感測器 093137363 表單編號A0101 第5頁/共11頁 0993454819-0 [〇〇l?] [〇〇18] [〇〇19] [00¾)] 099年12月20日修 纽裝時，二光學元件101、1〇2安裝於鏡頭1〇内之適當位 置並固定’其次，藉由螺旋配合將其鏡頭1 〇固定於套筒 20内。從基座30之一端插入上述安裝有鏡頭10之套筒20 ’再利用置放有影像感測器40之底板306封住基座30。其 中’底板306與套筒20之間設置有二回位彈簧301a、 3〇lb。 對焦時’對套筒20施加光軸方向之壓力，套筒20克服回 位彈簧301a、301b之彈性力而沿著光軸方向移動，當套 筒20下壓到一定程度時，其定位塊202a、202b於彈酱 2〇la、201b之彈力作用下凸伸至近拍定位突台303與遠 拍定位突台304之間之槽内髮症婷回每评嗜邊|la、301b 4 vf' „ Ί. 之彈性力之作用下，其定位線2 o b蠢遠拍定位突 m巧.，‘.’㈣少. 八 台304抵頂。此時該機構處於遠拍模式；當按壓回位按鍵 302a、302b時，解除定位塊202a、202b與遠拍定位突 台304之配合，該套筒2〇於彈性恢復力作用下沿著光轴方 向移動’當套筒20之突緣2〇3與基座20之近拍定位突台 303接觸時，該機構回到近拍模式。 可以理解，該兩段式對焦機構中，鏡頭1〇與套筒2〇可一 體設計成镜頭模組，由此，可減小部件數量及降低生產 成本》 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，以上所迷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】 _37363 表單編號A0101 第6頁/共11頁 0993454819-0 1338184 099年12月20日核1 正替换頁.1338184 December 20, 2010, Amendment and Replacement Page 6 Description of the Invention: [Technical Field] [0001] The present invention relates to a two-stage focusing mechanism, and more particularly to a two-stage type suitable for portable electronic devices Focus mechanism. [Previous Technology] [0002] At present, portable electronic devices are not limited to the functions of call and general message management, but also develop toward multimedia communication, such as transmission of video and images, and portable electronic devices with camera functions. These requirements can be met. [0003] In recent years, due to the rapid development of digital technology, the application of portable electronic devices with camera functions has become more and more popular: However, most of the portable electronic - ... · device lens modules only have digital focus and function, and do not have optical focusing. For example, the 1.3 million pixel lens module of the Samsung SCH-E159 and the 1.3 million pixel lens module of the BenQ S700 support the continuous camera function and the digital focus function. However, the optical focus function is not supported. [0004] At present, a lens module having a optical focusing function of three times or more is widely used in a digital camera. However, the structure is complicated and inconvenient to assemble, and a motor or a magnetic substance is usually used for the focusing function, and when optical focusing operation is performed, Because of the power supply, it consumes electricity. Therefore, the conventional lens module for digital cameras is not easily applied directly to portable electronic devices such as mobile phones. [0005] In view of this, it is necessary to provide a two-stage focusing mechanism that is simple in structure, convenient in assembly, and non-consumption of power. . SUMMARY OF THE INVENTION 093137363 Form No. A0101 Page 3 of 11 0993454819-0 1338184 December 20, 2010 Revision Correction Page [0006] It is an object of the present invention to provide a simple structure, convenient assembly, and no power consumption. Focus mechanism. [0007] The two-stage focusing mechanism provided by the present invention includes a lens module, a base and an image sensor, wherein the lens module is provided with an optical component, and the lens module and the image sensor are uniform The lens module includes a sleeve, and one end of the sleeve is provided with a flange. The side wall of the sleeve is provided with at least one accommodating groove, and the accommodating groove is slidably accommodated. a positioning block and a spring for driving the positioning block to slide; the base is provided with a macro positioning positioning protrusion and a remote positioning positioning platform, and the base is further provided with the lens module a lens spring; the lens module moves in the optical axis to a near full spring to provide an elastic force to move the flange and the macro card: the lens module moves in the optical axis direction to the base In the telephoto position, the spring-driven positioning block in the receiving slot is engaged with the telephoto positioning protrusion. [0008] Compared with the existing lens module, the two-stage focusing mechanism of the present invention utilizes a special sleeve mechanism to move the sleeve in the optical axis direction in the base, and can be positioned in two by a simple pressing operation. The position is achieved, thereby achieving the focusing function, which is simple in structure, convenient in assembly, and consumes no power. [0009] Referring to the first and second figures, the two-stage focusing mechanism of the present invention comprises a lens 10, a sleeve 20 and a base 30, wherein the optical element 101 is disposed in the lens 10. The lens 10 is received in the sleeve 20 and the sleeve 20 is received in the base 30. The base 30 further houses an image sensor 40. The sleeve 20 is disposed on the base 30. The inner edge moves in the direction of the optical axis and can be positioned in two positions. 093137363 Form No. A0101 Page 4 of 11 0993454819-0 1338184 December 20, 2010 Correction Replacement Page [0010] The lens 10 is provided with a through hole 1 03 through the light, which is transparent The cover body 104 is covered to prevent contamination of the optical element 101 by dust or the like, and the outer circumferential surface of the lens 10 is provided with an external thread 105. [0011] The inner side wall of the sleeve 20 is provided with an internal thread 204 which cooperates with the external thread 156 of the lens 10 to accommodate the lens 10 within the sleeve 20. Wherein, the depth of the lens 10 is uniformly adjusted and fixed by the lens manufacturer, so that the lens 10 is fixed at an appropriate position in the sleeve 20. [0012] A plurality of accommodating grooves are disposed on the side wall of the sleeve 20 at a certain angle. In the present embodiment, two accommodating grooves 20 5a and 205b are disposed, and the corresponding accommodating grooves 20 5a and 205b are accommodated with springs. 201a, 201b and positioning blocks 2 02a, 202b. A flange 203 is disposed on one end of the sleeve 20. [0013] The base 30 is provided with a macro positioning gantry 303 and a telephoto positioning gantry 304. In the macro mode, the macro positioning gantry 303 can block the flange 203 of the sleeve 20; in the telephoto mode, the remote positioning gantry 304 can block the positioning blocks 202a, 202b of the sleeve 20. [0014] The base 30 is provided with insertion holes 305a and 305b, and the return buttons 302a and 302b are inserted into the insertion holes 305a and 305b. [0015] The base 30 further includes a bottom plate 306 on which the image sensor 40 is disposed, and a return spring 301a, 301b is disposed between the bottom plate 306 and the sleeve 20. [0016] The image sensor 40 is disposed on the bottom plate 306. The image sensor 40 can be a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal-Oxide Semiconductor, Complementary Metal Oxide Semiconductor) Image Sensor 093137363 Form No. A0101 Page 5 of 11 0993454819-0 [〇〇l?] [〇〇18] [〇〇19] [003⁄4)] December 20, 099 In the tampering, the two optical elements 101, 1 〇 2 are mounted at appropriate positions in the lens 1 并 and fixed 'secondarily, and the lens 1 〇 is fixed in the sleeve 20 by a screw fit. The sleeve 20' to which the lens 10 is attached is inserted from one end of the base 30, and the base 30 is placed by the bottom plate 306 on which the image sensor 40 is placed. Between the bottom plate 306 and the sleeve 20, two return springs 301a, 3b are provided. When focusing, 'the pressure of the optical axis direction is applied to the sleeve 20, and the sleeve 20 moves along the optical axis direction against the elastic force of the return springs 301a, 301b. When the sleeve 20 is pressed down to a certain extent, its positioning block 202a 202b protrudes from the elastic force of the elastic sauce 2〇la, 201b to the slot between the close-up positioning pedestal 303 and the telephoto positioning pedestal 304. The lingering edge is evaluated every time |la, 301b 4 vf' „ Ί. Under the action of the elastic force, its positioning line 2 ob stupidly locates the positioning of the protrusion m,. '.' (four) less. Eight sets of 304 to the top. At this time the mechanism is in the telephoto mode; when the return button 302a is pressed And 302b, the positioning block 202a, 202b is disengaged from the telephoto positioning protrusion 304, and the sleeve 2 is moved along the optical axis direction under the elastic restoring force. 'When the flange 20 of the sleeve 20 is 2 and the base When the close-up positioning pedestal 303 of the seat 20 is in contact, the mechanism returns to the macro mode. It can be understood that in the two-stage focusing mechanism, the lens 1 〇 and the sleeve 2 〇 can be integrally designed as a lens module, thereby , which can reduce the number of parts and reduce the production cost. In summary, the invention complies with the requirements of the invention patent, and patents are legally proposed. The above are only the preferred embodiments of the present invention, and those skilled in the art to which the present invention pertains, equivalent modifications or variations in the spirit of the present invention are intended to be included in the following claims. [Simple description of the schema] _37363 Form No. A0101 Page 6 of 11 0993454819-0 1338184 December 20, 2008 Core 1 Positive replacement page.
[0021] 第一圖係本發明兩段式對焦機構之近拍狀態示意圖； [0022] 第二圖係本發明兩段式對焦機構之遠拍狀態示意圖。 【主要元件符號說明】 [0023] 鏡頭：10 [0024] 光學元件：101 ' 102 [0025] 通孔：103 [0026] 蓋體：104 [0027] 外螺紋：105 [0028] 套筒：20 [0029] 彈簧：201a、201b [0030] 定位塊：202a、 202b [0031] 突緣：203 [0032] 内螺紋：204 [0033] 容置槽：205a、 205b [0034] 基座：30 [0035] 回位彈簧：301a、301b [0036] 回位按鍵：302a、302b [0037] 近拍定位突台： 303 [0038] 遠拍定位突台： 304 [0039] 插入孔：30 5a、 305b 表單編號A0101 093137363 第7頁/共Π頁 0993454819-0 1338184 、 099年12月20日梭正替換頁 [0040] ·底板：306 093137363 表單編號A0101[0021] The first figure is a schematic diagram of a close-up state of the two-stage focusing mechanism of the present invention; [0022] The second figure is a schematic diagram of a far-shot state of the two-stage focusing mechanism of the present invention. [Main component symbol description] [0023] Lens: 10 [0024] Optical component: 101 '102 [0025] Through hole: 103 [0026] Cover: 104 [0027] External thread: 105 [0028] Sleeve: 20 [ 0029] Spring: 201a, 201b [0030] Positioning block: 202a, 202b [0031] Flange: 203 [0032] Internal thread: 204 [0033] accommodating groove: 205a, 205b [0034] Base: 30 [0035] Return spring: 301a, 301b [0036] Return button: 302a, 302b [0037] Macro positioning pedestal: 303 [0038] Telephoto positioning pedestal: 304 [0039] Inserting hole: 30 5a, 305b Form number A0101 093137363 Page 7/Total page 0993454819-0 1338184, December 20, 099 Shuttle replacement page [0040] · Base plate: 306 093137363 Form number A0101
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