經濟部智慧財產局員工消費合作社印製 "4 344 5 1 Λ7 _Β7_ 五、發明說明（） 5 - 1發明領域： 本發明係關於一種應用於數位相機之中的可調式鏡頭 定位裝置，以使得鏡頭得以聚焦成像於光感測器（Pho to Sensor)之上 ° 5-2發明背景： 製造數位相機時，必須要精確的將鏡頭聚焦在光感測 器上，如電荷耦合元件（CCD)、或CMOS感測器等。傳統上 會利用一組鏡頭定位裝置，以將鏡頭固定在某一特定位置 上，而聚焦成像於數位相機内部的光感測器。參閱第1圖1 顯示了傳統之鏡頭定位裝置Ϊ 0的剖面圖，其中主要包含鏡 頭元件1 4與托架1 2等構件。托架1 2係固定於印刷電路板 2 2之上，而印刷電路板2 2的表面，則焊接有光感測器2 4。 鏡頭1 8封裝於螺栓狀之鏡頭元件1 4中，並透過中空管2 6 將光線聚焦於光感測器2 4。鏡頭元件1 4外側之第一螺紋 1 1，則與托架1 2内側的第二螺紋1 3相吻合，使得鏡頭元 件14可旋轉至托架12中某一特定位置上，而將鏡頭18調 整於聚焦位置。當焦距調整完畢之後，鏡頭元件1 4將會透 過分散在不同位置處的點膠20而固定於托架12上。 一般而言，光感測器 2 4 係透過表面接著技術 (Surface-Mount Technology)，使得位於光感測器24之接 本紙張尺度適用中國國家標準（CNS)A4規格（2〖0 χ 297公釐） -- η----------^------Γ ^---------線 (請先閒讀背面之注意事項再填寫本頁) A7 A 34 4 5 1 B7_ 五、發明說明（） 腳與印刷電路板 2 2之接點處的錫膏因熱融化再冷卻凝 固，而捋其固定在印刷電路板2 2的表面。當融化鎘膏時， 液化的錫膏會將光感測器2 4輕微的浮起，使其約略偏移其 預定的高度。因此為了要補償光感測器2 4的偏離位移，必 須沿著垂直方向微調鏡頭元件 1 4的位置1當調整完畢之 後*才能將其位置予以耀·結固定。 傳統鏡頭定位裝置10的一項缺點在於，第一螺紋11 與第二螺紋1 3之間的間隙，使得鏡頭元件1 4無法緊密的 固定於托架1 2内。因此，若任何突發的衝擊造成鏡頭元件 1 4發生些微的移動，將使其無法精碹的聚焦於光感測器2 4 之上。當點膠2 0固化之後，不同位置上的點膠2 0將會對 鏡頭元件1 4施加不勻的作用力，並因而迫使鏡頭1 4自原 本聚焦的位置處產生位移。此外，即便是點膠2 0能夠平均 對鏡頭元件1 4施加作用力，在凝固之前仍無法保證鏡頭元 件14不會於生產數位相機製程中的取置搬運震動中產生 位移。由於點膠2 0係將鏡頭元件1 4永久性的固定於托架 1 2上，因此一但當其產生位移之後而膠亦凝固時，即很難 再進行修復。 第2圖顯示了習知技藝中，另一種鏡頭定位裝置30， 其主要元件亦包括了鏡頭元件38與托架36。同理，托架 3 6係固定於印刷電路板3 2之上，而印刷電路板3 2的表面， 則焊接有光感測器3 4。鏡頭元件3 8可旋入托架3 6之中， 本紙張尺度適用中國國家標準（CNS)A4規格（210 * 297公f ) - ------------ki-------^訂---------線 (請先閒讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 -d 3 d 4- 5 I A7 _B7_ 五、發明說明（） 使得鏡頭 4 6得以位在聚焦位置上，而將光線導穿中空管 4 8而成像於光感測器3 4。為了進一步將鏡頭4 6緊定在焦 距上，托架3 6的一側會設計一個螺孔4 2，當螺栓4 0旋入 螺孔4 2中並鎖固於鏡頭元件時，即可將鏡頭元件3 8連同 鏡頭46緊緊的固定在焦距上。 在一般數位相機之製程中，若是每一個鏡頭所需的組 裝時間越小時，其整體的產能將會越高，易言之，組裝每 一個鏡頭時所產生的成本也將越小=然而如同第2圖所示 之鏡頭固定裝置的設計，螺栓4 0將需要花費一段很長的時 間才能夠旋入螺孔4 2之中，因此無疑的造成了組裝每個鏡 頭的時間增長，進而降低了整體數位相機的產能。另外， 由於必須在托架3 6的一側形成螺孔，因此在設計模具時必 須外加上一個橫向的滑塊，以構成乾架3 6的模型°因此使 得模具設計上更形複雜，而成本也於焉增加。再者，由於 鏡頭固定裝置3 0必須搭配螺栓4 0方得使用，因此更造成 了零件增加與成本提高等問題。 為了克服上述的問題，可將鏡頭元件與托架之間螺紋 配合的精度提高，以形成完美的密合。然而，當模具的精 度越高時，其花費的成本也越高。若把成本列入考慮1這 樣的模具在工程上，將不是一個很好解決方式。因此在兼 顧成本效益的考量下，在這項技術領域令，一直存在著對 新設計之鏡頭定位裝置的需要，以期能克服習知技藝中的 本紙張尺度適用Ψ國國家標準（CNS)A4規格（210 X 297公釐） ---------ki------- 訂---------線 (請，，元"-背面之注意事項再填寫本頁) A7 434451 B7_ 五、發明說明（） 種種缺點。 5-3發明目的及概述： 本發明之目的為在提供一種應闬於數位相機中，可精 確定位鏡頭的裝置。 本發明之另一目的為在提供一種於數位相機製作完成 後，仍可調整鏡頭的聚焦位置的鏡頭定位裝置。 本發明揭露了一種應用於數位相機中之可調式鏡頭定 位裝置，其中包含有鏡頭元件、托架、與定位桿等構件。 銳頭元件係為由螺桿部份與螺蓋部份所構成的螺栓狀結構 物。螺蓋部份的外緣係成鋸齒或凹凸狀的輪廓，而螺桿部 份的内部則具有中空管，管内則鑲嵌有鏡頭，以將光線經 由中空管導出而聚焦成像。鏡頭元件可透過螺桿旋入托架 之中，並調整其垂直高度聚焦於光感測器上。定位桿則位 於托架上，並向突伸直至與螺蓋部份的外緣相接觸。由於 定位桿的輪廓係與螺蓋部份的齒狀外緣相匹配，因此藉由 榫合於齒狀外緣的齒隙之間，將可拘束鏡頭元件的旋轉運 動3而當需要重新調整鏡頭元件的焦距時，僅需鬆脫定位 桿的拘束，旋轉調整鏡頭定位元件即可。 5 - 4圖式簡單說明： 本紙張尺度適用中國國家標準（CN'S)A-l規格（210 X 297公釐） , li:------訂---------線 (請先閱讀背面之-意事項再填寫本頁) 經濟部智慧財產局3工消費合作社印製Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs " 4 344 5 1 Λ7 _Β7_ V. Description of the Invention (5) 1 Field of Invention: The present invention relates to an adjustable lens positioning device used in digital cameras, so that The lens can be focused and imaged on the Pho to Sensor. 5-2 Background of the Invention: When manufacturing a digital camera, the lens must be precisely focused on the light sensor, such as a charge-coupled device (CCD), Or CMOS sensor. Traditionally, a set of lens positioning devices is used to fix the lens in a specific position and focus on the light sensor inside the digital camera. Refer to FIG. 1 for a cross-sectional view of a conventional lens positioning device ， 0, which mainly includes a lens element 14 and a bracket 12. The bracket 12 is fixed on the printed circuit board 22, and the surface of the printed circuit board 22 is soldered with a light sensor 24. The lens 18 is enclosed in a bolt-shaped lens element 14 and focuses the light on the light sensor 2 4 through the hollow tube 2 6. The first thread 11 on the outside of the lens element 14 is matched with the second thread 13 on the inside of the bracket 12 so that the lens element 14 can be rotated to a specific position in the bracket 12 and the lens 18 is adjusted At the focus position. After the focal length is adjusted, the lens elements 14 will be fixed to the bracket 12 through the dispensing 20 dispersed at different positions. Generally speaking, the light sensor 2 4 is surface-mount technology, so that the paper size of the light sensor 24 is applicable to the Chinese National Standard (CNS) A4 specification (2 〖0 χ 297 male Li)-η ---------- ^ ------ Γ ^ --------- line (please read the precautions on the back before filling this page) A7 A 34 4 5 1 B7_ V. Description of the invention () The solder paste at the contact between the pin and the printed circuit board 22 is melted and then cooled and solidified, and it is fixed on the surface of the printed circuit board 2 2. When the cadmium paste is melted, the liquefied solder paste will slightly lift the light sensor 24, offsetting it slightly from its predetermined height. Therefore, in order to compensate for the offset displacement of the light sensor 24, it is necessary to fine-adjust the position 1 of the lens element 14 in the vertical direction. After the adjustment is completed, * its position can be fixed and fixed. One disadvantage of the conventional lens positioning device 10 is that the gap between the first thread 11 and the second thread 13 prevents the lens element 14 from being tightly fixed in the bracket 12. Therefore, if any sudden impact causes a slight movement of the lens element 14, it will not be able to precisely focus on the light sensor 2 4. When the dispensing 20 is cured, the dispensing 20 at different positions will exert uneven force on the lens element 14 and thus force the lens 14 to shift from the original focus position. In addition, even if the dispensing 20 can exert an average force on the lens element 14 before the solidification, there is no guarantee that the lens element 14 will not be displaced by the handling vibration during the process of producing digital phase mechanism. Since Dispensing 20 fixes the lens element 14 to the bracket 12 permanently, once the glue is solidified after the displacement, it is difficult to repair it. FIG. 2 shows another lens positioning device 30 in the conventional art, and its main components also include a lens element 38 and a bracket 36. Similarly, the bracket 36 is fixed on the printed circuit board 32, and the surface of the printed circuit board 32 is soldered with a light sensor 34. The lens element 38 can be screwed into the bracket 36, and this paper size applies to the Chinese National Standard (CNS) A4 specification (210 * 297 male f) ------------- ki --- ---- ^ Order --------- line (please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy -d 3 d 4- 5 I A7 _B7_ V. Description of the invention () The lens 46 can be positioned at the focus position, and the light is guided through the hollow tube 4 8 and imaged on the light sensor 3 4. In order to further fix the lens 46 to the focal length, a screw hole 4 2 is designed on one side of the bracket 36, and when the bolt 40 is screwed into the screw hole 4 2 and locked to the lens element, the lens can be fixed. The element 38 and the lens 46 are tightly fixed at the focal length. In the general digital camera manufacturing process, if the assembly time required for each lens is smaller, the overall production capacity will be higher. In other words, the cost of assembling each lens will be smaller. However, as the first In the design of the lens fixing device shown in Figure 2, it will take a long time for the bolt 40 to be screwed into the screw hole 42, so it will undoubtedly increase the time to assemble each lens, thereby reducing the overall Digital Camera Capacity. In addition, since a screw hole must be formed on one side of the bracket 36, a lateral slider must be added when designing the mold to form a model of the dry rack 36, which makes the mold design more complex and costly. Yu Yu increased. Furthermore, since the lens fixing device 30 must be used with bolts 40, it has caused problems such as an increase in parts and costs. In order to overcome the above problems, the precision of the screw fitting between the lens element and the bracket can be improved to form a perfect fit. However, the higher the accuracy of the mold, the higher the cost. If the cost is considered as a mold in engineering 1, it will not be a good solution. Therefore, in consideration of cost-effectiveness, in this technology field, there has always been a need for a newly designed lens positioning device in order to overcome the paper standard in the conventional art and apply the national standard (CNS) A4 specification (210 X 297 mm) --------- ki ------- Order --------- line (please, Yuan "-Note on the back then fill out this (Page) A7 434451 B7_ 5. Explanation of the invention () Various shortcomings. 5-3 Object and Summary of the Invention: The object of the present invention is to provide a device which can be used in a digital camera and can accurately position a lens. Another object of the present invention is to provide a lens positioning device capable of adjusting the focus position of a lens after the digital camera is manufactured. The invention discloses an adjustable lens positioning device used in a digital camera, which includes a lens element, a bracket, a positioning rod and other components. The sharp-point element is a bolt-like structure composed of a screw portion and a screw cap portion. The outer edge of the screw cap part has a sawtooth or concave-convex outline, while the screw part has a hollow tube inside, and a lens is embedded in the tube to focus the light through the hollow tube for imaging. The lens element can be screwed into the bracket through the screw, and its vertical height can be adjusted to focus on the light sensor. The positioning lever is located on the bracket and protrudes toward the outer edge of the screw cap portion. Since the contour of the positioning rod matches the toothed outer edge of the screw cap part, by engaging the gap between the toothed outer edge, the rotational movement of the lens element can be restricted 3 and the lens needs to be adjusted again When the focal length of the component is loosened, it is only necessary to loosen the restraint of the positioning rod, and rotate and adjust the lens positioning component. 5-4 Schematic description: This paper size applies to China's National Standard (CN'S) Al specification (210 X 297 mm), li: ------ order --------- line (please first (Read the notice on the back-please fill in this page)
.US A7 B7 五、發明說明（ 第1圖 為傳統上鏡頭定位裝置的剖面圖。 第2圖 為傳統上另一鏡頭定位裝置的剖面圖。 第3圖 為本發明之實施例中可調式鏡頭定位裝置的 咅!]面圖。 第4圖 為本發明之實施例中可調式鏡頭定位裝置的 頂視圖。 第5圖 為本發明之實施例中可調式鏡頭定位裝置的 另一頂視圖。 第6圖 為本發明之實施例中可調式鏡頭定位裝置的 再一頂視圖。 第7圖 為本發明之實施例中可調式鏡頭定位裝置與 其搭配治具的剖面圖° 5 - 5圖號對照說明： 經濟部智慧財產局員工消費合作社印製 1 0鏡頭定位裝置 12托架 1 4鏡頭元件 20 點膠 2 4 光感測器 3 2印刷電路板 36 托架 40 螺栓 1 1第一螺紋 1 3第二螺紋 18鏡頭 2 2 印刷電路板 3 0 鏡頭定位裝置 3 4 光感測器 3 8 鏡頭元件 4 2 螺孔 - ^ '^i,------.訂---------線 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準<CNS)A4規烙UlO X 297公釐） A7 54 光 感 測 器 5 6 托 架 58 定 位 桿 60 鏡 頭 元 件 62 透 明 板 65 限 位 機 構 6 7 第 二 中 空管 72 彈 性 元 件 d3A A5 _B7_ 五、發明說明（） 46 鏡頭 48中空管 5 0 可調式鏡頭定位裝置 5 2 電路板 5 3 螺桿部份 5 5 螺蓋都份 5 7 螺紋 59 螺紋 6 1 托架頸部 64鏡頭 66第一中空管 7 0 彈性元件 了4治具 5 - 5發明詳細說明： 本發明藉由多個實施例，以說明應用於數位相機中之 鏡頭定位裝置的結構，並透過卡榫匹配的方式固定對焦完 畢的鏡頭，使之不致發生進一步的旋轉而偏離了聚焦的位 置=此外不同形狀的卡榫匹配設計，在實際的應用之上亦 各具有不同優點，以下將配合圖示以說明這些不同設計考 量下 '依據本發明之精神所衍生的實施例。 第3圖與第4圖顯示了本發明的第一個實施例。首先 參間第3圖所顯示之可調式鏡頭定位裝置5 0的剖面，其主 要元件包含鏡頭元件60、托架56、以及定位桿58。鏡頭 本紙張尺度適用中國國家標準（CNS)A.i規格（210 X 297公釐） .¾ I.------.訂---------線 (ΪΤ先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 ，。c 1 “ 4 一 A7 _ _ B7 五、發明說明（） 元件6 0具有螺栓狀的外貌，並可依據外覲形狀進一步區分 為螺桿部份5 3 ’以及自螺桿部份5 3頂端向外延伸的螺蓋 部份5 5 = —般而言’鏡頭元件6 0的材質係為塑勝，其闬 料量約略·為數個立方公分。然而依據不同的需求，亦可以 改變尺寸的設計，並選用其他材料，如橡膠、金屬等。螺 桿部份5 3的外側表面係成螺紋5 7圖案，而其内側則具有 第一中空管66»鏡頭64鑲嵌於第一中空管66之内，其上 並覆蓋有透明板6 2，使得光線得以穿過透明板6 2 ,並經由 鏡頭6 4的聚焦成像於光感測器5 4之上，如電荷耗合元件 (C C D )、或C Μ 0 S感測器等。螺蓋部份5 5的外緣則具有齒牙 狀的結構，以與定位桿5 8相匹配而達成固定鏡頭元件6 〇 的效果，其細節則詳於後文。 托架56概略為一筒狀结構，用以固定鏡頭元件60，並 承接電路板52。托架頸部61内部之第二中空管61管壁上 的螺紋5 9，匹配於螺桿部份5 3外側的螺紋5 7，使得銳頭 元件60得穿設於其中’並透過旋轉的方式而調整其與光感 測器54的距離，進而使得鏡頭64聚焦於光感測器54上。 托架5 6上則具有至少一個向上突伸直至與螺蓋部份5 5的 外緣相接觸的定位桿58 »由於定位桿58的輪廓係與螺蓋 部份55的齒狀外緣相匹配，故藉由令定位桿”榫合於齒 隙拘束鏡頭^件6"目對於托架頸部6i的旋轉運 動’而令鏡頭64得固定在其聚焦位置之上。此外，托架頸 部61的底部可選擇性的設計一向内突起的限位機構65, 本紙張尺度適用+國國家標準（CNS)A4規格（2i0 x 297公釐 _ 、 . 4^-----------------線 (請先閒讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 A7 _B7_ 五、發明說明（） 以規範鏡頭元件60向下運動的範圍。而為了進一步提供鏡 頭元件60於垂直方向上的拘束力，可於鏡頭元件60與托 架5 6之間，例如限位裝置6 5與螺桿都份5 3之間，或托架 5 6與螺蓋部份5 5之間，設計加入彈性元件了 0、7 2，如彈 吾、彈片、或橡膠墊圏等，以提供鏡頭元件60垂直方向的 拘東力。 請參閱第4圖，顯示了鏡頭元件6 0與定位桿5 8的頂 視圖。如圖中所述，鏡頭元件6 0之螺蓋部份外緣上的每一 齒牙皆具有向兩侧展開之斜面，以形成多個錐狀齒牙相連 的鋸齒狀外緣。而定位桿5 8則具有與齒牙之斜面相匹配的 錐面。當鏡頭元件6 0轉動時，定位桿5 8可沿著該斜面移 動，而對鏡頭元件6 0形成拘束效果。而由於定位桿5 8的 錐面與齒牙之間，在超過一定扭力之下可以沿著斜面相互 的運動，故此種匹配設計將可以兼顧轉動鏡頭元件6 0以調 整焦距，和拘束鏡頭元件6 0以固定焦距的效果。此外附帶 一提的是，本處實施例的精神在於使得定位桿5 8與鏡頭元 件6 0之間形成可轉動的拘束，而不僅限定於上述的機構。 例如，鏡頭元件6 0之螺蓋部份外緣可為呈波浪起伏狀之外 緣，而定位桿5 8則具有與之匹配的弧面。易言之，當施加 於鏡頭元件6 0上的扭矩超過一定限度時，即可鬆脫定位桿 5 6的拘束而調整鏡頭6 4之焦距。 第5圖、第6圖顯示了鏡頭元件6 0與定位桿5 8之間 本紙張尺度適用争國國家標準（CNS)A.l規格（210 X 297公釐） - ; 私--------訂---------線 (請先閲讀背面之注意事項再填寫本頁) Ο Λ7 Β7 五、發明說明（） 不同的E配情形。如第5圖所示’鏡頭元件60之螺蓋部份 的外緣，成凹凸狀的齒牙，而每相鄰的齒牙間則具有相鄰 的凹槽。定位桿5 8則具有至少一個凸面，用以與齒牙之間 的凹槽相匹配，使得定位桿得以緊鎖於齒狀外緣上，以拘 束鏡頭元件相對於托架頸部的旋轉運動。第6圖則顯示了 另一種匹配的樣式。相似地，鏡頭元件6 〇之螺蓋部份的外 緣，成凹凸狀的齒牙，而每相鄰的齒牙間則具有相鄰的凹 槽。夂位桿58具有一個雙凸面，用以與突起的齒牙相匹 配’使得固定桿5 8得以緊鎖於該使狀外緣上，以拘束鏡頭 元件的旋轉運動。由於第5圖與第6圖中，鏡頭元件外緣 的潰牙係成凹凸的輪廓’因此當轉動時，定位桿5 8無法相 對於齒牙產生位移，因此第5圖之實施例所提供的拘東 力，赞大於第4圖之實施例，而第6圖之實施例所提供的 拘束力，又將略大於第5圖之實施例》此外附帶一提的是， 此處所提及的實施例’主要精神在於利用定位桿5 8緊緊的 固定鏡頭兀件’使其無法轉動β因此定位桿5 8的結構並不 限定於單凸面或雙&面，鏡頭元件6〇外緣的輪廊亦不限定 於凹凸狀，任何可令定位桿58與鏡頭元件6〇緊密結合的 設計，當落於本發明所揭露的技術範圍之内。 雖然第5圖與第6圖之實施例，可提供鏡頭元件6〇較 大的拘束力，然而亦限制了調整鏡頭焦距時，鏡頭元件6 〇 的旋轉運動。此-問題可藉由設計一些特別的治具予以克 服。如第7圖所示，透過楔形治具74或住何等效的工具撐 IV Μ^--------訂---------線-> (請先--背面--意事項再填寫衣頁) 經濟部智慧財產局員工消費合作社印製 10 4 3dA5 ^ 五、發明說明（） 開宅位桿5 8，再旋轉鏡頭元件6 0以铜敢 利S焦距，岑县吉垃 以楔形治具挾持鏡頭元件6 0使之旋轉 ^ Λ調整焦距。俟隹距 調整完成後’再鬆開治具令定位桿5s + 6〇3 58失持固定鏡頭元件 由於本發明利用卡榫接合的方或m λ 巧固定鏡頭元件的位 置，因此避免了傳統上使用點膠而盔、、ι & …〃去重新調整鏡頭隹距 的問題。另外，本發明不須使用額外的碑1 ”' 片「的螺栓’或是於托架 中開設螺孔’因而可以進一步的節省匍从' ” 表作枒料以及降低開 模成本。同時，本發明固定鏡頭焦距的士 的方式十分簡易，因 此可以降低鏡頭的組裝時間’並進一步的節省大量的製造 成本 5 本發明以一較佳實施例說明如上，僅用於藉以繁助了 解本發明之實施’非用以限定本發明之精神，而熟悉此領 域技藝者於領悟本發明之精神後’在不脫離本發明之精神 範圍内，當可做些許更動潤飾及等同之變化替換，其專利 保護範圍當視後附之專利申請範圍及其等同領域而定。 -1-1'裝---------訂---------線，- (請先K15背面之事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 11 本紙張尺度適用中國國家樣準（CiNIS)A4規格（210 X 297公笼）.US A7 B7 5. Description of the Invention (Figure 1 is a sectional view of a conventional lens positioning device. Figure 2 is a sectional view of another conventional lens positioning device. Figure 3 is an adjustable lens in an embodiment of the present invention A top view of the positioning device. FIG. 4 is a top view of the adjustable lens positioning device in the embodiment of the present invention. FIG. 5 is another top view of the adjustable lens positioning device in the embodiment of the present invention. Fig. 6 is another top view of the adjustable lens positioning device in the embodiment of the present invention. Fig. 7 is a sectional view of the adjustable lens positioning device and its matching jig in the embodiment of the present invention. : Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1 0 lens positioning device 12 bracket 1 4 lens element 20 dispensing 2 4 light sensor 3 2 printed circuit board 36 bracket 40 bolt 1 1 first thread 1 3 Two-thread 18 lens 2 2 Printed circuit board 3 0 Lens positioning device 3 4 Light sensor 3 8 Lens element 4 2 Screw hole-^ '^ i, ------. Order -------- -Line (Please read the precautions on the back before filling out this page) National standard < CNS) A4 standard UlO X 297 mm) A7 54 light sensor 5 6 bracket 58 positioning rod 60 lens element 62 transparent plate 65 limit mechanism 6 7 second hollow tube 72 elastic element d3A A5 _B7_ V. Description of the invention (46) Lens 48 Hollow tube 5 0 Adjustable lens positioning device 5 2 Circuit board 5 3 Screw part 5 5 Cap parts 5 7 Thread 59 Thread 6 1 Bracket neck 64 Lens 66 No. A hollow tube 7 0 elastic element 4 fixture 5-5 Detailed description of the invention: The present invention uses multiple embodiments to explain the structure of a lens positioning device applied to a digital camera, and is fixed by means of a tenon matching. The lens that has been focused will not cause further rotation and deviate from the focus position. In addition, the matching design of different shapes of tenons also has different advantages in practical applications. The following diagrams will be used to illustrate these different designs. Consider the embodiment derived from the spirit of the present invention. Figures 3 and 4 show a first embodiment of the invention. First, the cross-section of the adjustable lens positioning device 50 shown in FIG. 3 includes main components including a lens element 60, a bracket 56, and a positioning rod 58. The paper size of the lens applies the Chinese National Standard (CNS) Ai specification (210 X 297 mm). ¾ I .------. Order --------- line (Fill in this page again) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. c 1 "4-A7 _ _ B7 V. Description of the invention () The element 60 has a bolt-like appearance, and can be further divided into a screw part 5 3 ′ and an outward extension from the top of the screw part 5 3 according to the shape of the outer shell. 5 5 =-Generally speaking, the material of the lens element 60 is plastic, and the amount of material is approximately several cubic centimeters. However, according to different needs, the size design can also be changed and selected. Other materials, such as rubber, metal, etc. The outer surface of the screw part 5 3 is threaded 5 7 pattern, and the inner side has a first hollow tube 66 »lens 64 is embedded in the first hollow tube 66, which It is covered with a transparent plate 6 2 so that the light can pass through the transparent plate 6 2 and is focused on the light sensor 54 by a lens 64, such as a charge consumable element (CCD), or C M 0 S sensor, etc. The outer edge of the screw cap part 5 5 has a tooth-like structure to match the positioning rod 5 8 to achieve the effect of fixing the lens element 6 0, details of which will be described later. The frame 56 is roughly a cylindrical structure for fixing the lens element 60 and receiving the circuit board 52. The thread 5 9 on the pipe wall of the second hollow tube 61 inside the neck 61 is matched with the thread 5 7 on the outside of the screw portion 5 3, so that the sharp-pointed element 60 must be placed in it and rotated by Adjust the distance from the light sensor 54 so that the lens 64 is focused on the light sensor 54. The bracket 56 has at least one protruding upward until it contacts the outer edge of the screw cap portion 55. Positioning rod 58 »Because the contour of the positioning rod 58 matches the toothed outer edge of the screw cap portion 55, the lens is“ tenuated ”to the backlash restraint lens ^ piece 6 " for the neck of the bracket The rotation movement of 6i 'causes the lens 64 to be fixed above its focus position. In addition, the bottom of the bracket neck 61 can optionally be designed with a limiting mechanism 65 that protrudes inward. This paper size applies + National National Standard (CNS) A4 specifications (2i0 x 297 mm_,. 4 ^ --- -------------- Line (please read the precautions on the back before filling out this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _B7_ V. Description of the invention The range of the downward movement of the element 60. In order to further provide the restraint force of the lens element 60 in the vertical direction, it can be between the lens element 60 and the bracket 56, for example, between the limit device 6 5 and the screw rod 5 3 Or, between the bracket 56 and the screw cap portion 55, elastic elements 0 and 72 are designed to be added, such as springs, shrapnels, or rubber pads, etc., to provide the vertical force of the lens element 60. Please refer to FIG. 4, which shows a top view of the lens element 60 and the positioning rod 58. As shown in the figure, each tooth on the outer edge of the screw cap portion of the lens element 60 has a side opening The bevel is formed to form a sawtooth-shaped outer edge connected by a plurality of tapered teeth. The positioning rod 5 8 has a matching surface with the bevel of the teeth. Conical surface. When the lens element 60 rotates, the positioning rod 58 can move along the inclined surface, which has a restraining effect on the lens element 60. However, the distance between the cone surface of the positioning rod 58 and the teeth is more than a certain degree. Under torsion, they can move with each other along the inclined plane, so this matching design can take into account the effects of rotating the lens element 60 to adjust the focal length and restraining the lens element 60 to fix the focal length. In addition, it is mentioned that the embodiments in this embodiment The spirit of the lens lies in the fact that a rotatable restraint is formed between the positioning rod 58 and the lens element 60, and it is not limited to the above mechanism. The positioning lever 5 8 has a curved surface matching it. In other words, when the torque applied to the lens element 60 exceeds a certain limit, the restriction of the positioning lever 5 6 can be released to adjust the lens 6 4 Figures 5 and 6 show the size of the paper between the lens element 60 and the positioning rod 5 8 This paper applies the national standard (CNS) Al specification (210 X 297 mm)-; Private ---- ---- Order --------- Line (Please read the notes on the back first Please fill in this page again) 〇 Λ7 Β7 V. Description of the invention () Different E distributions. As shown in Figure 5, the outer edge of the screw cap part of the lens element 60 is formed into concave and convex teeth, and each phase The adjacent teeth have adjacent grooves. The positioning rod 58 has at least one convex surface to match the groove between the teeth, so that the positioning rod can be locked on the outer edge of the tooth, so that Restrict the rotation of the lens element relative to the neck of the bracket. Figure 6 shows another matching pattern. Similarly, the outer edge of the screw cap portion of the lens element 60 is formed into concave and convex teeth, and each There are adjacent grooves between adjacent teeth. The position lever 58 has a double convex surface for matching with the protruding teeth 'so that the fixing lever 58 can be locked on the outer edge of the anchor to restrain the rotational movement of the lens element. As shown in FIG. 5 and FIG. 6, the broken teeth of the outer edge of the lens element have a concave-convex profile. Therefore, when the rotation is performed, the positioning rod 58 cannot be displaced relative to the teeth. Therefore, the embodiment of FIG. 5 provides The force of restraint is better than the embodiment of FIG. 4, and the restraint force provided by the embodiment of FIG. 6 will be slightly greater than the embodiment of FIG. 5. In addition, it is mentioned that the The embodiment "main spirit is to use the positioning rod 5 8 to firmly fix the lens element" so that it cannot rotate β. Therefore, the structure of the positioning rod 5 8 is not limited to a single convex surface or a double & surface. The contour is not limited to the concave-convex shape, and any design that can make the positioning rod 58 and the lens element 60 tightly fall within the technical scope disclosed in the present invention. Although the embodiments of FIG. 5 and FIG. 6 can provide a large restraint force for the lens element 60, it also limits the rotational movement of the lens element 60 when the lens focal length is adjusted. This problem can be overcome by designing some special fixtures. As shown in Fig. 7, through the wedge-shaped jig 74 or an equivalent tool to support the IV Μ ^ -------- Order --------- line-> (please first--back --Issue fill in the clothing page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 10 4 3dA5 ^ V. Description of the invention () Open the house post 5 8 and then rotate the lens element 60 Xian Jilan held the lens element 60 with a wedge-shaped jig to rotate it ^ Λ to adjust the focus. After the distance adjustment is completed, then the jig is loosened to make the positioning lever 5s + 603 58 lose the fixed lens element. Because the present invention uses a square or m λ to fix the position of the lens element, it traditionally avoids the traditional Use dispensing and helmet, ι & ... to re-adjust the lens pitch. In addition, the present invention does not require the use of additional "bolts" or "opening holes" in the bracket, thereby further saving materials from the "" table and reducing mold opening costs. At the same time, the method of fixing the lens focal length taxi of the present invention is very simple, so the assembly time of the lens can be reduced 'and further a lot of manufacturing costs can be saved. 5 The present invention has been described above with a preferred embodiment, and is only used to help understand the present invention. The implementation of the invention 'is not intended to limit the spirit of the present invention, and those skilled in the art after comprehending the spirit of the present invention' can do some modifications and replacements without departing from the spirit of the present invention. The scope of patent protection shall depend on the scope of the attached patent application and its equivalent fields. -1-1 'installed --------- order --------- line,-(please fill in the page on the back of K15 first) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 11 This paper size applies to China National Sample Standard (CiNIS) A4 (210 X 297 male cage)