200928479 九、發明說明： 【發明所屬之技術領域】 昜 本發明涉及一種校正系統，尤其涉及一種應用於鏡頭 ' 模組組裝過程中之校正系統。 【先前技術】 近年來，隨著多媒體技術之發展，鏡頭模組之應用範 圍越來越廣，如應用到數位相機、攝像機及帶有攝像功能 之手機等電子產品中。人們對數位相機、攝像機及帶有攝 像功能之手機追求小型化之同時，對其被拍攝物影像品質 D 也提出了更高之要求，即希望被拍攝物體之影像晝面清 晰，而物體之成像品質於很大程度上取決於組裝過程中鏡 頭模組中之各透鏡之光軸是否重合（lpheus W. Burner等人 於1995年SPIE系統、圖像計量學第四次會議（Videometrics IV)上發表之論文 “Zoom lens calibration for wind tunnel measurements”中揭示了由於鏡頭模組中之各透鏡之光軸不 對齊而產生之影響）。因此，透鏡之組裝必須相當精確，以 0提高光轴重合之幾率，從而提高鏡頭模組之成像品質。 鏡頭模組通常包括鏡筒（Barrel)、鏡座（Holder)、透鐃、 間隔環及濾光片等元件，其中，透鏡、間隔環及濾光片等 光學元件沿鏡筒之中心轴方向依次固定於鏡筒内。鏡頭模 組組裝過程中，吸嘴吸取透鏡、間隔環、濾光片等光學元 件並將該這些光學元件裝入鏡筒。光學元件裝入鏡筒内 後，通常先採用一校正治具，如壓棒伸入到鏡筒内校正這 些光學元件於鏡筒内之位置，然後再利用一測量儀器測量 200928479 已達到對應之位置，過程較為複 光學元件於鏡筒内是否 雜’組裝效率較低。 【發明内容】 有鑒於此 之校正系統。 有必要提供一種可提高鏡頭模組組裝效率 一種校正系統，用於鏡頭模組組裝過程中校正光學元 件於鏡筒内之位置，其包括：一個承載臺，該承載臺具有 承載面’用於承载該鏡筒；—支#架，該支#架包括一 ❹水平固定部，該水平固定部與該承載面相對設置，鏡頭模 組組裝過程中該鏡筒位於該水平固定部與該承载面之間； 及杈正/〇具’該校正治具包括：一固定套筒，該固定套 筒之外側面沿其軸向設置有第—長度刻度線；—旋轉套 筒1¾疑轉套筒套设於該固定套筒之外侧；一旋桿，該旋 桿與該固定套筒内徑面螺紋連接，該旋桿之一端穿過該固 定套筒固定於該旋轉套筒内侧底部，該旋桿之另一端為一 自由端’該旋轉套筒靠近該旋桿之自由端之端面用於指示 〇該第-長度刻度線之數值，該固定套筒遠離該旋轉套筒之 一端固定于該水平固定部，該固定套筒及該旋轉套筒位於 該水平固疋部之遠離該承載臺之一侧，該旋桿穿過該水平 固定部設置。 相對於先前技術，該校正治具利用該旋轉套筒靠近該 旋桿之自由端之端面指示固定套筒外表面之長度刻度線， 可精確控制該旋桿靠近該承載面之端部表面與該承載面之 間之距離’從而精確控制旋桿伸入放置於承載面之鏡筒對 200928479 光學元件壓合時，該光學元件處於鏡筒内之具體位置，從 而省去了使用另外之測量儀器來測量該光學元件於該鏡筒 * 内之位置，提高了組裝效率。 【實施方式】 下面將結合附圖對本發明作進一步之詳細說明。 請參閱圖1，為本發明實施例提供之一種校正系統 100,用在於鏡頭模組之組裝過程中校正一元件於鏡筒内之 位置，本實施例以校正透鏡32於鏡筒34内之位置為例。 ©於本實施例中，該透鏡32為雙凸透鏡，其包括中心部分之 光學部322及環繞該光學部322之連接部324。該校正系統 100包括一承載臺10、一支架12及一校正治具14。 該承載臺10具有一承載面102,該鏡筒34放置於該承 載面102上。該支架12具有一水平固定部122及兩個用於 支撐該水平固定部122之支撐腳124。該水平固定部122 位於該承載面102之上方並與承載面102相對，該兩個支 撐腳124位於該鏡筒34之兩側，且每個支撐腳124之兩端 ❹分別與水平固定部122及承載臺10連接固定，以將水平固 定部122與該承載面102保持一固定之距離。該支撐腳124 與水平固定部122之間可通過螺釘連接固定或為一體結 構，本實施例為一體結構。可以理解，該支撐腳124也可 為一個，此時該支撐腳124之兩端分別與該水平固定部122 及該承載臺10連接固定；或者將水平固定部122固定於一 壁板上，只要可將水平固定部122與承載面102之間保持 一固定距離即可。 200928479 該校正治具14包括一固定套筒142、一旋轉套筒144 . 及一旋桿148。該旋轉套筒144套設於該固定套筒142之一 端。該旋桿148與固定套筒142内徑面螺紋連接，旋桿148 之一端穿過該固定套筒142固定於該旋轉套筒144内側底 部。旋桿148之另一端為伸出固定套筒.142之自由端1482。 該固定套筒142之外表面沿其軸向設置有長度刻度線 1422，旋轉套筒144靠近該自由端1482之一端沿其外圓周 設置有長度刻度線1442。 Ο 該固定套筒142與該旋轉套筒144相對之一端固定于 該水平固定部122，旋桿148穿設于該水平固定部122，旋 轉套筒144及固定套筒142位於水平固定部122遠離該承 載臺10之一側，旋桿148之自由端1482位於水平固定部 122靠近該承載臺10之一侧。固定套筒142之中心軸垂直 于該水平固定部122。 旋轉套筒144靠近旋桿148之自由端1482之端面1444 與固定套筒142之外表面垂直，用於指示長度刻度線1422 ©之刻度示數，該固定套筒142之外表面沿其軸向延伸一基 準線1424,該基準線1424用於指示旋轉套筒144表面之長 度刻度線1442之刻度示數。長度刻度線1442沿旋轉套筒 144圓周之刻度總值，等於旋轉套筒144旋轉一周該旋桿 148沿其軸向移動之距離，長度刻度線1442類似於千分尺 之微分筒表面之刻度線，其用於估讀長度刻度線1422之最 小刻度值之下一位或下兩位讀數，該長度刻度線1422及 1442之示數之及等於旋轉套筒144之端面1444指示之刻度 200928479 示數。例如：長度刻度線1422之最小刻度值為lmm，長度 刻度線1442之刻度總值為1mm，且將該1mm之刻度總值 一百等分，當長度刻度線1422之示數為10mm，基準線1424 所指示長度刻度線1442之示數為0.12mm時，則此時旋轉 套筒144之端面1444所指示之刻度示.數為10.12mm。 該旋桿148之靠近承載面102之一端套設有一壓帽 150。該壓帽150之一端為一杯狀體1502，該杯狀體1502 之内侧形狀與該旋桿148之自由端1482相匹配，該杯狀體 _ 1502套設於該旋桿148之自由端1482,從而該杯狀體1502 與該旋桿148緊密配合。 該壓帽150與該杯狀體1502相對之另一端為壓合端 1504，該壓合端1504具有一壓合面1506，該壓合面1506 用於與透鏡32接觸並壓合透鏡32,從而校正透鏡32於鏡 筒34内之位置。該壓合面1506之中心區域開設有一凹陷 部1508，該凹陷部1508用於收容透鏡32之光學部322， 該凹陷部1508之大小設計成可將該光學部322全部收容其 ❹内，且凹陷部1508表面與光學部322之間尚留有一定間 隙，以防止壓合面1506壓合透鏡32時擦傷光學部322。該 壓合端1504設計成如此形狀也可校正組入鏡筒34内之其 他光學元件，如雙凹透鏡、一面凸一面凹之透鏡、間隔環 或濾光片等。 請一併參閱圖2，該校正系統100校正透鏡32於鏡筒 34内之位置之過程如下： (1)首先，調整該旋轉套筒144之端面1444指示零點 200928479 示數位置，當壓帽150之壓合面1506與承載面102接觸時， 端面1444所指示之長度刻度線1422及1442都為零時。 參 (2) 旋轉該旋轉套筒144使壓帽150抬高，將内部裝設 有透鏡32之鏡筒34放置於該承載臺10之承載面102上， 並使該鏡筒34與該旋桿148同軸。 (3) 旋轉該旋轉套筒144，帶動該旋桿148套設有壓帽 150之端部向靠近鏡筒34方向移動，使壓帽150伸入到鏡 筒34内，並使壓帽150之壓合面1506壓合該透鏡32之連 ^ 接部324，根據旋轉套筒144之端面1444所指示之長度刻 ❹ 度線1422及1442之刻度值，來控制壓合面1506相對於承 載面之高度，進而控制透鏡32组入鏡筒34内之深度，從 而將透鏡32壓合於鏡筒34内之適當位置。 因為固定套筒142之外側及旋轉套筒144之外圓周分 別設置有長度刻度線1422及1442，類似於千分尺之固定套 筒及微分筒，且水平固定部122與承載面102之間之距離 固定，所以可預先確定旋桿148端部之壓帽150所應處之 ❹位置，即壓合面1506與承載面102之距離，通過讀取旋轉 套筒144之端面1444所指示之刻度值來確定壓帽150於鏡 筒34内之位置，從而可於校正透鏡32之同時將透鏡32壓 合至預定之位置，省去了採用其他測量儀器測量透鏡32是 否於鏡筒34内之對應位置之步驟，使組裝效率提高。 可理解，校正系統100還可用來壓合組裝於鏡筒34内 之其他光學元件，如間隔環等，相應地，可根據所壓合之 光學元件之不同而更換具有不同形狀壓合面及不同大小之 11 200928479 壓帽；當然，也可將旋桿148之自由端1482設計成適合於 壓合光學元件之形狀，直接採用旋桿148之自由端1482之 端部表面來壓合鏡筒34内之光學元件，並不限於本實施例。 綜上所述，本發明確已符合發明專利之要件，遂依法 提出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明實施例提供之一種校正系統與鏡頭模組 之部分剖面示意圖。 圖2係圖1中之校正系統校正鏡片時之部分剖面示意 圖。 【主要元件符號說明】 承載臺 10 壓帽 150 支架 12 光學部 322 ❹校正治具 14 連接部 324 透鏡 32 長度刻度線 1422,1442 鏡筒 34 基準線 1424 校正系統 100 端面 1444 承載面 102 自由端 1482 水平固定部 122 杯狀體 1502 支撐腳 124 壓合端 1504 固定套筒 142 壓合面 1506 12 200928479 旋轉套筒 144 凹陷部 1508 旋桿 148 ❹200928479 IX. Description of the invention: [Technical field to which the invention pertains] 昜 The present invention relates to a correction system, and more particularly to a calibration system applied to a lens assembly process. [Prior Art] In recent years, with the development of multimedia technology, the application range of lens modules has become wider and wider, such as in electronic products such as digital cameras, video cameras, and mobile phones with camera functions. While digital cameras, camcorders, and mobile phones with camera functions are being miniaturized, there is a higher demand for the image quality D of the subject, that is, the image of the object to be photographed is clear, and the image of the object is imaged. The quality depends to a large extent on whether the optical axes of the lenses in the lens module are coincident during assembly (lpheus W. Burner et al., 1995, SPIE System, Imagemetrics IV) The paper "Zoom lens calibration for wind tunnel measurements" reveals the effect of the misalignment of the optical axes of the lenses in the lens module. Therefore, the assembly of the lens must be quite accurate, increasing the probability of coincidence of the optical axis by 0, thereby improving the imaging quality of the lens module. The lens module usually includes a barrel (Barrel), a mirror (Holder), a lens, a spacer ring, and a filter. The optical components such as a lens, a spacer ring, and a filter are sequentially arranged along the central axis of the lens barrel. Fixed in the lens barrel. During assembly of the lens module, the nozzle sucks optical elements such as lenses, spacers, and filters and loads the optical components into the lens barrel. After the optical component is placed in the lens barrel, a calibration fixture is usually used first, for example, the pressure rod extends into the lens barrel to correct the position of the optical component in the lens barrel, and then a measuring instrument is used to measure the position of 200928479. The process is more complicated than that of the complex optical component in the lens barrel. SUMMARY OF THE INVENTION A correction system is contemplated in view of this. It is necessary to provide a correction system for improving the assembly efficiency of the lens module for correcting the position of the optical component in the lens barrel during assembly of the lens module, comprising: a carrier having a bearing surface for carrying The lens frame includes a horizontal fixing portion, and the horizontal fixing portion is disposed opposite to the bearing surface. The lens barrel is located at the horizontal fixing portion and the bearing surface during assembly of the lens module And the correcting fixture comprises: a fixing sleeve, the outer side of the fixing sleeve is provided with a first length line along the axial direction thereof; the rotating sleeve 13⁄4 is suspected to be sleeved On the outer side of the fixing sleeve; a rotating rod, the rotating rod is screwed to the inner diameter surface of the fixing sleeve, and one end of the rotating rod is fixed to the inner bottom of the rotating sleeve through the fixing sleeve, and the rotating rod is The other end is a free end. The end surface of the rotating sleeve near the free end of the rotating rod is used to indicate the value of the first-length scale line. The fixing sleeve is fixed to the horizontal fixing portion away from one end of the rotating sleeve. , the fixing sleeve The rotating sleeve is located on one side and the supporting table away from the horizontal portion of the fixing piece goods, through the rotating rod of the horizontal fixing portion is provided. Compared with the prior art, the calibration jig uses the end face of the rotating sleeve near the free end of the rotating rod to indicate the length tick mark of the outer surface of the fixing sleeve, and can accurately control the end surface of the rotating rod near the bearing surface and the The distance between the bearing surfaces' thus precisely controls the rotation of the rotating rod into the lens barrel placed on the bearing surface. When the optical components of the 200928479 are pressed, the optical element is in a specific position in the lens barrel, thereby eliminating the need to use another measuring instrument. Measuring the position of the optical element within the lens barrel* improves assembly efficiency. [Embodiment] Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings. Please refer to FIG. 1 , which is a calibration system 100 for correcting the position of an element in a lens barrel during assembly of a lens module. This embodiment is used to correct the position of the lens 32 in the lens barrel 34 . For example. In the present embodiment, the lens 32 is a lenticular lens including an optical portion 322 at the center portion and a connecting portion 324 surrounding the optical portion 322. The calibration system 100 includes a carrier 10, a bracket 12, and a calibration fixture 14. The carrier 10 has a carrying surface 102 on which the lens barrel 34 is placed. The bracket 12 has a horizontal fixing portion 122 and two support legs 124 for supporting the horizontal fixing portion 122. The horizontal fixing portion 122 is located above the bearing surface 102 and opposite to the bearing surface 102 . The two supporting legs 124 are located at two sides of the lens barrel 34 , and the two ends of each supporting leg 124 and the horizontal fixing portion 122 respectively And the carrier 10 is fixedly connected to maintain the horizontal fixing portion 122 and the bearing surface 102 at a fixed distance. The supporting leg 124 and the horizontal fixing portion 122 can be fixed by screws or integrated, and the embodiment is an integral structure. It can be understood that the support leg 124 can also be one. At this time, the two ends of the support leg 124 are respectively fixedly connected to the horizontal fixing portion 122 and the loading platform 10; or the horizontal fixing portion 122 is fixed to a wall plate, as long as A fixed distance between the horizontal fixing portion 122 and the bearing surface 102 can be maintained. 200928479 The calibration fixture 14 includes a fixed sleeve 142, a rotating sleeve 144, and a rotating rod 148. The rotating sleeve 144 is sleeved at one end of the fixing sleeve 142. The rotary lever 148 is screwed to the inner diameter surface of the fixed sleeve 142, and one end of the rotary lever 148 is fixed to the inner bottom portion of the rotary sleeve 144 through the fixed sleeve 142. The other end of the rotary lever 148 is a free end 1482 that extends beyond the fixed sleeve 142. The outer surface of the fixing sleeve 142 is provided with a length scale line 1422 along its axial direction, and the rotating sleeve 144 is provided with a length scale line 1442 along its outer circumference near one end of the free end 1482. The one end of the fixing sleeve 142 opposite to the rotating sleeve 144 is fixed to the horizontal fixing portion 122, the rotating rod 148 is disposed on the horizontal fixing portion 122, and the rotating sleeve 144 and the fixing sleeve 142 are located away from the horizontal fixing portion 122. On one side of the carrying platform 10, the free end 1482 of the rotating rod 148 is located on one side of the horizontal fixing portion 122 near the carrying platform 10. The central axis of the fixed sleeve 142 is perpendicular to the horizontal fixing portion 122. The end face 1444 of the rotating sleeve 144 near the free end 1482 of the rotating rod 148 is perpendicular to the outer surface of the fixing sleeve 142 for indicating the scale indication of the length scale line 1422, the outer surface of the fixing sleeve 142 is along its axial direction. A reference line 1424 is extended for indicating the scale of the length scale line 1442 of the surface of the rotating sleeve 144. The total scale of the length scale line 1442 along the circumference of the rotating sleeve 144 is equal to the distance that the rotating rod 148 moves along the axial direction of the rotating sleeve 144. The length scale line 1442 is similar to the scale line of the micrometer surface of the micrometer. It is used to estimate one or the next two readings below the minimum scale value of the length scale line 1422. The sum of the indications of the length scale lines 1422 and 1442 is equal to the scale 200928479 indicated by the end face 1444 of the rotating sleeve 144. For example, the minimum scale value of the length scale line 1422 is 1 mm, the total scale value of the length scale line 1442 is 1 mm, and the total value of the scale of 1 mm is one hundred equal parts, and when the length scale line 1422 is 10 mm, the reference line When the indication of the indicated length scale line 1442 is 142 mm, the scale indicated by the end surface 1444 of the rotary sleeve 144 is 10.12 mm. A pressing cap 150 is disposed on one end of the rotating rod 148 near the bearing surface 102. One end of the pressure cap 150 is a cup 1502. The inner shape of the cup 1502 matches the free end 1482 of the screw 148. The cup _ 1502 is sleeved on the free end 1482 of the screw 148. Thereby the cup 1502 is in close cooperation with the screw 148. The other end of the pressing cap 150 opposite to the cup 1502 is a pressing end 1504. The pressing end 1504 has a pressing surface 1506 for contacting the lens 32 and pressing the lens 32, thereby The position of the lens 32 within the lens barrel 34 is corrected. The central portion of the pressing surface 1506 defines a recessed portion 1508 for receiving the optical portion 322 of the lens 32. The recessed portion 1508 is sized to receive the optical portion 322 entirely therein and recessed. A certain gap is left between the surface of the portion 1508 and the optical portion 322 to prevent the optical portion 322 from being scratched when the pressing surface 1506 is pressed against the lens 32. The press-fit end 1504 is designed in such a shape as to correct other optical components incorporated into the lens barrel 34, such as a biconcave lens, a concave lens, a spacer ring or a filter. Referring to FIG. 2 together, the calibration system 100 corrects the position of the lens 32 in the lens barrel 34 as follows: (1) First, the end face 1444 of the rotating sleeve 144 is adjusted to indicate the zero point 200928479 position, when the pressure cap 150 When the pressing surface 1506 is in contact with the bearing surface 102, the length scale lines 1422 and 1442 indicated by the end surface 1444 are both zero. The rotating sleeve 144 is rotated to raise the pressure cap 150, and the lens barrel 34 in which the lens 32 is mounted is placed on the bearing surface 102 of the loading table 10, and the lens barrel 34 and the rotating rod are mounted. 148 coaxial. (3) rotating the rotating sleeve 144, driving the end of the pressing rod 148 to be moved toward the lens barrel 34, so that the pressing cap 150 extends into the lens barrel 34, and the pressure cap 150 is The pressing surface 1506 presses the connecting portion 324 of the lens 32, and controls the pressing surface 1506 relative to the bearing surface according to the scale values of the length lines 1422 and 1442 indicated by the end surface 1444 of the rotating sleeve 144. The height, in turn, controls the depth of the lens 32 into the barrel 34 to press the lens 32 into place within the barrel 34. The outer circumference of the fixing sleeve 142 and the outer circumference of the rotating sleeve 144 are respectively provided with length marking lines 1422 and 1442, similar to the fixed sleeve and the differential cylinder of the micrometer, and the distance between the horizontal fixing portion 122 and the bearing surface 102 is fixed. Therefore, the position of the pressing cap 150 at the end of the rotating rod 148, that is, the distance between the pressing surface 1506 and the bearing surface 102, can be determined in advance by reading the scale value indicated by the end surface 1444 of the rotating sleeve 144. The pressure cap 150 is positioned within the lens barrel 34 so that the lens 32 can be pressed to a predetermined position while the lens 32 is being corrected, eliminating the need for other measuring instruments to measure whether the lens 32 is in the corresponding position within the lens barrel 34. To improve assembly efficiency. It can be understood that the calibration system 100 can also be used to press-fit other optical components assembled in the lens barrel 34, such as spacer rings, etc., and accordingly, differently shaped pressing faces can be replaced and different according to the different optical components to be pressed. Size 11 200928479 Pressure cap; of course, the free end 1482 of the rotary lever 148 can also be designed to be suitable for pressing the shape of the optical element, directly adopting the end surface of the free end 1482 of the rotary lever 148 to press the lens barrel 34 The optical element is not limited to this embodiment. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the present invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional view showing a correction system and a lens module according to an embodiment of the present invention. Fig. 2 is a partial cross-sectional view showing the correction system of Fig. 1 when the lens is corrected. [Main component symbol description] Carrying table 10 Pressure cap 150 Bracket 12 Optical part 322 ❹ Correction jig 14 Connection part 324 Lens 32 Length scale line 1422, 1442 Barrel 34 Reference line 1424 Correction system 100 End face 1444 Bearing surface 102 Free end 1482 Horizontal fixing portion 122 Cup 1502 Supporting foot 124 Pressing end 1504 Fixing sleeve 142 Pressing surface 1506 12 200928479 Rotating sleeve 144 Depression 1508 Rotary rod 148 ❹
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