200942363 ' 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種夾持裝置，尤其涉及一種用在於研磨 過程中對濾光片坯料進行精確夾持之夾持裝置。 【先前技術】 隨著攝像技術之發展，鏡頭模組於各種用途之攝像裝 置中得到廣泛之應用’鏡頭模組與各種可攜式電子裝置如 手持、電腦等之結合，更得到眾多消費者之青睞。 ❹ 鏡頭模組通常包括鏡座、與鏡座嚙合之鏡筒、以及收 容於鏡筒中之光學元件。該光學元件包括鏡片、濾光片、 及用以間隔鏡片與濾光片之間隔部件，如間隔體等。 作為鏡頭模組中之重要元件，濾光片對鏡頭模組之光 學成像起著不可或缺之作用，例如，紅外截止濾光片（IR cut filer)可防止CCD/CMOS由於圖元間隔所引起之波紋與偽 色、降低紅外光對CCD/CMOS成像效果之影響。具體可參 閱 Hakan Johansson 等人於文獻 IEEE Transactions on ® Circles and Systems (1999 年 7 月）中發表之“Filter structures composed of all-pass and FIR filters for interpolation and decimation by a factor of two”一文。 出於光學成像及安裝需要，現有之濾光片一般具有一 圓形輪廓。通常，為提高濾光片之圓心度（亦即濾光片近似 圓之程度），先前技術採用砂輪對濾光片坯料之外形輪廓進 行研磨，方法係，利用兩個相對設置之夾持棒對準濾光片 坯料之幾何中心夾持並移動濾光片坯料靠近砂輪，當砂輪 6 200942363 轉動對濾光片述料進行研磨時，藉由失持棒轉動濾光片坯 料，使得濾光片坯料沿周周方向各處受砂輪均勻=磨而最 終得到具圓形輪廓之濾光片。 惟’先前技術中炎持棒對濾光片坯料進行夾持時，其 難以對準滤光片链料之幾何中心，容易造成滤光片链料二 其周周方向受研磨不均勻而最終未能得到一圓心度較佳之 濾光片。 心度之夾BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holding device, and more particularly to a holding device for accurately clamping a filter blank during a grinding process. [Prior Art] With the development of camera technology, the lens module has been widely used in various types of camera devices. The combination of lens modules and various portable electronic devices such as handheld devices and computers has won many consumers. Favor.镜头 The lens module usually includes a lens holder, a lens barrel that engages the lens holder, and an optical component that is received in the lens barrel. The optical component includes a lens, a filter, and a spacer member for spacing the lens from the filter, such as a spacer. As an important component in the lens module, the filter plays an integral role in the optical imaging of the lens module. For example, the IR cut filer prevents the CCD/CMOS from being caused by the pixel spacing. Ripple and false color, reducing the effect of infrared light on CCD/CMOS imaging. For more details, see "Filter structures composed of all-pass and FIR filters for interpolation and decimation by a factor of two" by Hakan Johansson et al., IEEE Transactions on ® Circles and Systems (July 1999). Existing optical filters typically have a circular profile for optical imaging and mounting needs. Generally, in order to increase the center of gravity of the filter (that is, the degree to which the filter is approximately round), the prior art uses a grinding wheel to grind the outer contour of the filter blank by using two oppositely disposed pair of clamping rods. The geometric center of the quasi-filter blank holds and moves the filter blank near the grinding wheel. When the grinding wheel 6 200942363 rotates and grinds the filter material, the filter blank is rotated by the lost rod to make the filter blank The grinding wheel is evenly distributed around the circumference of the circumference to obtain a circular contoured filter. However, in the prior art, when the filter holder was clamped to the filter blank, it was difficult to align the geometric center of the filter chain, which easily caused the filter chain material to be unevenly polished in the circumferential direction. A filter with a better center of gravity can be obtained. Heart folder
有鑒於此，提供一種可使濾光片獲得較佳圓 持裝置實為必要。 【發明内容】 下面將以實施例說明一種夾持裝詈 得較佳之圓心度。 種爽持裝置#可使滤光片獲 -種夾持裝置，用於夾持複數濾、光片堪料以對其進 研磨得到所需滤光片，該夹持裝置包括兩個爽持臂 = = 複數__，且該兩個夾持臂可 ❹=轉以帶動该複數濾光片坯料一起轉動；一定心單元 =心單元包m槽及兩個與該收容槽 : :二收容槽由該定心單元之-表面向内開設而形= 疋、槽为別從該表面向内開設且從該 ==延伸，該收容槽用於對齊該_== ==:光片链料之幾何令心線相互重合，該兩個定心 滤光片㈣相匹配，其分別用於定位該兩個夾持臂 =個夾持臂之幾何中心線與該複數遽 之 何中心線相重合。 丁寸 7 200942363 相對於先前技術，該夾持裝置設置了一定心單元，該 定心單元上開設之收容槽可對齊複數（也即多個）濾光片^ 料以使其幾何中心線相互重合，而該定心單元上開設之兩 個定心槽則可使兩個夾持臂夾持該複數濾光片坯料時，其 幾何中心線與該複數濾光片坯料之幾何中心線相重合。' 故，當採用研磨裝置，如砂輪沿濾光片坯料之周周方向進 行研磨時，該遽光片述料可受砂輪之均句研磨而最終形成 具較佳圓心度之濾光片。 ❿【實施方式】 請參閱圖1，本發明實施例提供之夾持裝置 括兩個夾持臂11及一定心單元13。 請-起參Μ 2’料個夾持臂心於績複數滤光 片枉料20,該濾光片链料2〇通常為一長方體結構，且該長 Ο 方：結構具有一研磨面2〇〇，以及與該研磨面_相鄰：相 對没置之兩個疊加面202。該兩個夾持臂 側對該複數濾光片坯料20之疊加面2〇2進行抵目對之^兩 =濾光片链料20夾持住。該夾持臂u可具有一 輪廓，該圓柱形輪廓具有一幾何中心線a，當缺， 臂11亦可為其他形狀，如三角錐形輪摩等。另二：：： 持臂11可分別機械輕合—旋轉單元12，如/ 馬達等，以經由該兩個旋轉單元12驅 二、：服 該兩個旋轉單元12還可分別連接至—激勵進一步’ :臂U可驅動與該旋轉單元12相機械輕合之夹 8 200942363 該定心單元13包括一收容槽132，及兩個與該收容槽 132相貫通之定心槽134，其中’該收容槽132由該定心單 元13之一表面130向内開設，該兩個定心槽I%從該表面 130向定心單元13内開設，且進一步從該收容槽132相對 之兩側向外延伸。 請一起參閱圖3’該收容槽132可容置該複數濾光片坯 料20，以使該複數濾光片坯料2〇對齊且幾何中心線B相 互重合。具體地，該收容槽132與該濾光片坯料2〇相匹配， 〇由於本實施例中濾光片坯料2〇之疊加面2〇2具體為一正方 形，故，對應地，該收容槽132可為一個三角錐狀凹槽， 且該三角錐狀凹槽之截面形狀可為該正方形沿其對角線切 分所得之直角等腰三角形M。如圖3所示，該直角等腰三 角形Μ具有一底邊M1，沿該收容槽132之延伸方向截面 所得之複數直角等腰三角形M之底邊M1，其中點連線形 成-基準線W。該收容槽132之截面形狀沿其延伸方向處 ❹處相同，使得該複數濾光月坯料2〇放置於該收容槽132上 時，其可相互對齊，且其幾何中心線B亦相互重合並進一 步與該基準線W共線。 «•亥兩個疋w槽134與該兩個夾持臂丨丨相匹配，i分別 用於定位該兩個夾持臂！卜如圖2所示，該定心槽…截 面形狀可對應於5亥央持臂！ i之截面形狀設置為半圓形N， 化《亥定匕槽134之延伸方向截面所得之複數半圓形n， 其圓心連線（未標示）與該基準線玫相重合。 使用時’將該複數遽光片㈣2G放置於該定心單元η 200942363 之收容槽132上，該複數滤光片述料2〇之複數疊加面2〇2 相互平行，且該複數濾光片坯料20相互對齊並具有共同之 幾何中心線B。 ^ 進一步地，藉由該兩個激勵臂14分別驅動該兩個夾持In view of this, it is necessary to provide a device for obtaining a better holding of a filter. SUMMARY OF THE INVENTION A center of the clamping device is preferably described below by way of example. The holding device can make the filter obtain a clamping device for clamping a plurality of filters, and the light sheet is ready to be ground to obtain a desired filter, and the clamping device comprises two holding arms. = = plural __, and the two clamping arms can be rotated to drive the plurality of filter blanks to rotate together; the centering unit = the core unit package m slot and two and the receiving slot: The surface of the centering unit is opened inwardly and the shape = 疋, the groove is not opened from the surface and extends from the ==, the receiving groove is used for aligning the _====: the geometry of the light sheet chain The core lines are coincident with each other, and the two centering filters (4) are matched to respectively locate the geometric center lines of the two clamping arms=one clamping arms and coincide with the center line of the plurality of clamping points. Ding inch 7 200942363 Compared with the prior art, the clamping device is provided with a centering unit, and the receiving groove formed on the centering unit can align a plurality of (ie, a plurality of) filter materials such that their geometric center lines coincide with each other. And the two centering grooves provided on the centering unit can cause the two clamping arms to clamp the plurality of filter blanks, and the geometric center line thereof coincides with the geometric center line of the plurality of filter blanks. Therefore, when a grinding device is used, such as grinding wheel grinding along the circumferential direction of the filter blank, the calendering sheet can be ground by the grinding wheel to finally form a filter having a better center of gravity. [Embodiment] Referring to Figure 1, a clamping device according to an embodiment of the present invention includes two clamping arms 11 and a centering unit 13. Please - Μ Μ 2' material grip arm in the complex filter material 20, the filter chain 2 〇 usually a rectangular parallelepiped structure, and the structure: the structure has a polished surface 2〇 〇, and adjacent to the abrasive surface _: two superimposed faces 202 that are not placed. The two gripping arms are held against the superimposed surface 2〇2 of the plurality of filter blanks 20, and the filter strips 20 are clamped. The clamping arm u can have a contour having a geometric centerline a. When missing, the arm 11 can also have other shapes, such as a triangular conical wheel. The other two::: The holding arms 11 can be mechanically coupled respectively - the rotating unit 12, such as / motor, etc., to drive through the two rotating units 12, the two rotating units 12 can also be respectively connected to - the incentive further ': The arm U can drive the clip 8 that is mechanically coupled with the rotating unit 12 200942363 The centering unit 13 includes a receiving groove 132 and two centering grooves 134 extending through the receiving groove 132, wherein the receiving portion The slot 132 is opened inwardly from the surface 130 of the centering unit 13 . The two centering slots 1 % are opened from the surface 130 to the centering unit 13 and further extend outward from opposite sides of the receiving slot 132 . . Referring to FIG. 3' together, the receiving groove 132 can accommodate the plurality of filter blanks 20 such that the plurality of filter blanks 2 are aligned and the geometric centerlines B coincide with each other. Specifically, the receiving groove 132 is matched with the filter blank 2,, because the overlapping surface 2〇2 of the filter blank 2〇 is specifically a square in the embodiment, the receiving groove 132 is correspondingly It may be a triangular pyramidal groove, and the sectional shape of the triangular pyramidal groove may be a right angle isosceles triangle M obtained by dividing the square along its diagonal line. As shown in Fig. 3, the right-angled isosceles triangle has a bottom edge M1, and a bottom right edge M1 of a plurality of right-angled isosceles triangles M along the extending direction of the receiving groove 132, wherein the dot line forms a reference line W. The cross-sectional shape of the receiving groove 132 is the same along the extending direction of the receiving groove 132, so that when the plurality of filter blanks 2 are placed on the receiving groove 132, they can be aligned with each other, and the geometric center line B is further merged with each other. It is collinear with the reference line W. «•Hai two 疋w slots 134 match the two gripping arms i, i are used to position the two clamping arms respectively! As shown in Fig. 2, the centering groove... the cross-sectional shape can correspond to the 5 Hahyang arm! The cross-sectional shape of i is set to a semi-circular N, and the plurality of semi-circular n obtained by the cross-section of the extension of the crater 134 is fixed, and the center line (not shown) coincides with the reference line. When in use, the multi-layer calender sheet (4) 2G is placed on the receiving groove 132 of the centering unit η 200942363, and the plurality of filter sheets 2 〇 the plurality of superimposed surfaces 2 〇 2 are parallel to each other, and the plurality of filter blanks 20 are aligned with each other and have a common geometric centerline B. ^ Further, the two clamping arms 14 respectively drive the two clamping
煮11同時運動至該定心單S 13上，並將該兩個爽持臂U =準該定心單元13之兩個定心槽134放置。當該兩個爽持 臂11與兩個定心槽134無間隙接觸時，該兩個夹持臂π 之幾何中心線Α與該複數濾、光片链料2G之幾何中心線Β 相重合。此時，該兩個激勵臂14可朝相互靠近之方向運動， 兩個夾持臂u由相對之兩側對準並夾持該複數滤 元片堪料20， 請進一 步參閱圖 -----每场阿1回灭符臂11夾持該複數濾 ❹The boil 11 is simultaneously moved to the centering table S 13 and the two holding arms U = are placed in the two centering grooves 134 of the centering unit 13. When the two holding arms 11 are in no-gap contact with the two centering grooves 134, the geometric center line π of the two clamping arms π coincides with the geometric center line Β of the plurality of filter and film strips 2G. At this time, the two excitation arms 14 can move toward each other, and the two clamping arms u are aligned by the opposite sides and clamp the plurality of filter elements. 20, please refer to the figure--- - Each of the 1 annihilator arms 11 holds the plural filter
可再次藉由該兩個激勵臂14分別驅動該 兩個夾持f u同時運動’並靠近一研磨裝置，如一砂輪 3〇(此過程中兩個夾持臂u之間之位置關係保持不變），從 而可利用該砂輪3G對該複數濾光片铺2G 於研磨過程中，該兩個旋轉單幻2可驅動該兩個夹 =U及其所爽持之複數滤光片㈣2G —起 2數遽光片铺2G沿其周周方向可受砂輪均勻研磨，並 最終形成具較佳圓心度之複數渡光片40，如圖5所示。 上舉本發明夾持裝置10之一種實施方式，實際 還可有其他之各種實施方式，例如，本領 員=可利用該央持裝置10以夹持其他工件如鏡 片專。另’本領域技術人員可理解，當本發明之滤光片链 200942363 :20之數量為一時，該夾持裝置 達到使遽光片链料2()沿其 r仍了實施’並同樣可 最終形成具較佳圓心声、、二°受砂輪均勻研磨，從而 1主圓、度之濾光片40之目的。 提出發明確已符合發明專利之要件，遂依法 , 月 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 技藝之人士援依本發明之精φ 本案 π乏精砷所作之等效The two clamping arms 14 can be driven to simultaneously move the two clamping fus simultaneously and close to a grinding device, such as a grinding wheel 3 (the positional relationship between the two clamping arms u remains unchanged in the process) Therefore, the grinding wheel 3G can be used to lay 2G on the plurality of filters during the grinding process, and the two rotating single illusions 2 can drive the two clips=U and the plurality of filters they hold (4) 2G The calendering sheet 2G can be uniformly ground by the grinding wheel along its circumferential direction, and finally forms a plurality of light-passing sheets 40 having a better center of gravity, as shown in FIG. One embodiment of the clamping device 10 of the present invention can be implemented in various other embodiments. For example, the member = can utilize the holding device 10 to hold other workpieces such as a lens. Further, it will be understood by those skilled in the art that when the number of filter chains 200942363:20 of the present invention is one, the clamping device achieves that the tanning sheet chain 2 () is still implemented along its r and can also be finally The purpose is to form a filter 40 having a better center sound and a uniform grinding of the grinding wheel by two degrees, thereby forming a main circle and a degree of filter 40. The invention has indeed met the requirements of the invention patent. According to the law, the above-mentioned ones are only the preferred embodiments of the present invention, and the person who can't limit the patent application technique of the present invention can rely on the essence of the invention. Equivalent to arsenic
G 應涵蓋於以下申請專利範圍内。 ㈣變化s 【圖式簡單說明】 圖1係本發明實施例提供之夹持裝置之結構示意圖。 圖2係採用圖1所示夹持裝置對滤光片 之示意圖。 人符 圖3係圖 面示意圖。 所示夾持裝置之定心單元沿 ΙΙΙ-ΙΙΙ線之剖 圖4係採用砂輪對圖2所示之滤光片坯料進行 圖。 圖5係圖4所示濾光片坯料經研磨後形成濾光片之八 【主要元件符號說明】 失持裝置 10 失持臂 11 旋轉單元 12 定心單元 13 激勵臂 14 11 200942363G shall be covered by the following patent application. (4) Variations s [Simplified Description of the Drawings] FIG. 1 is a schematic structural view of a clamping device according to an embodiment of the present invention. Fig. 2 is a schematic view showing the filter using the holding device shown in Fig. 1. Figure 3 is a schematic diagram of the figure. The centering unit of the holding device shown in Fig. 4 is a cross-sectional view of the ΙΙΙ-ΙΙΙ line. The filter blank shown in Fig. 2 is shown by a grinding wheel. Figure 5 is a diagram showing the filter blank shown in Figure 4 after being polished to form a filter. [Main component symbol description] Loss of device 10 Missing arm 11 Rotating unit 12 Centering unit 13 Excitation arm 14 11 200942363
濾光片坯料 20 砂輪 30 濾光片 40 表面 130 收容槽 132 定心槽 134 研磨面 200 疊加面 202 直角等腰三角形 Μ 底邊 Ml 半圓形 N 幾何中心線 A、B 基准線 W 12Filter blank 20 Grinding wheel 30 Filter 40 Surface 130 Storage groove 132 Centering groove 134 Grinding surface 200 Superimposed surface 202 Right angle isosceles triangle Μ Bottom edge Ml Semicircle N Geometric center line A, B Reference line W 12