200825495 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種鏡頭之組立結構，尤指一種具有卡榫之鏡頭組立結 構，適用於投影機鏡頭。本發明亦有關於前述組立結構的組立方法。 【先前技術】 在投影機中，以可調整焦距之鏡頭將物方影像拉近或拉遠時，當解像 不良就必須再重組鏡頭，故其鏡頭組立結構影響使用便利性，當然，變更 鏡頭組立結構勢必影響成本。 請參閱第一圖，係先前技術之鏡頭組立結構，其包含一鏡筒1〇1，其内 部收納所需的鏡片組，外側設置一托框102，加強該鏡筒1〇1的機構強度， 以免變形，該托框設置複數個螺孔106; 一調焦套筒103，設置複數個曲線 溝槽109 ; —固定座1〇4，沿轴向設置複數個溝槽11〇，且其内侧具有一容 置室105 ;複數個螺絲1〇7以及複數個軸承1〇8，另外，該複數個螺孔1〇6 的間距與該複數娜槽110關距是_樣的。其組立方式係將該調焦套筒 103套置於該鏡请ιοί外側及該固定座1〇4夕卜側，且該鏡筒1〇1容置於該固 定座104之容置室105内。該托框之複數個螺孔1〇6對應於該固定座 上的複數個溝槽110。以該複數個螺絲1〇7套置該複數個轴承1〇8後，穿設 該調焦套筒103之複數個曲線溝槽1〇9與該固定座1〇4之溝槽11〇，且螺合 該鏡筒1〇1外侧托框之複數個螺孔1〇6，以達到組立該綱之目的。以該調 焦套筒之曲線溝槽1()9與該螺絲1()7所套置之轴承⑽配合做動，透過轉 動該調焦套筒103以完成調焦或變倍的功能。 5 200825495 然而’上述組立方式，當鏡頭解像不良時需重組該鏡頭，就必須鬆開 螺絲後’才能分開鏡筒與固定座。不僅耗費工時，且組立元件眾多。 所以需要發展-種組立架構，以解決上述的問題。 【發明内容】 本發明之-目_提供_種綱之組立、轉，喊少綱於解像不良 時’需重組該鏡頭所耗費之時間，以有效減少工時。 本發明之另-目的係提供—種麵之組讀構，以減少綱之組立元 件，降低成本。 本發明之鏡賴立結構包含有_鏡筒，其外側托框具有複數個卡榫， -固定座’雜向設置複數個穿槽，其觸具有—容置室，…調焦套筒， 设置複數個曲線溝槽’且其内部設置沿轴向設置複數個導槽連通至該複數 個曲線溝槽，另外，該複數個卡榫、穿槽以及導槽的角度間距是一樣的。 其組立方式係將該雛套筒套置於該鏡筒賴及_定座賴，該鏡筒外 侧之複數個卡榫沿著該固定座之複數個穿槽移動而將該鏡筒容置於該固定 % 座之容置室内。該卡榫亦沿著該調焦套筒内部之導槽移動至該曲線溝槽， 並旋動該調鏡套筒，以該調焦套筒之曲線溝槽卡合該卡榫，固定該鏡筒， 以達到組立該鏡頭之目的。 本發明與先前技術之差異在於無須鬆動螺絲，只需把托框旋轉至導槽 所在的位置就能分開鏡筒與固定座，減少旋開螺絲的時間。 進一步而言，利用該卡榫替換先前技術所使用之螺絲、轴承以及螺孔， 並設置固定座上的穿槽以及調焦套筒上的導槽而改善其組立時間的耗損， 6 200825495 減少組立元件數量。 如上所述之說明，本發明之優點包括：（一）節省重組鏡頭所耗費之時 間；以及（二）減少鏡頭之組立元件，降低成本。 【實施方式】 第2圖顯示出根據本發明之實施例的鏡頭之組立結構，其係適用於投 影機鏡頭上的鏡頭組立結構，主要包含有一鏡筒1〇1，其内部收納所需的鏡 片組（未顯示），外侧設置一托框1〇2，加強該鏡筒1〇1的機構強度，避免 變形，該托框1〇2上設置複數個卡榫2〇1 ; 一調焦套筒1〇3，設置複數個曲 線溝槽109，且其内部設置沿轴向設置複數個導槽2〇3，連通至該等複數個 曲線溝槽1〇9，該導槽2〇3係用來導引該卡榫2〇1至該曲線溝槽1〇9内；一 固定座104，其内側具有一容置室1〇5，且自該容置室1〇5前端起，沿轴向 议置複數個穿槽202’該穿槽202可供該鏡筒1〇1之卡榫2〇1移動而使鏡筒 101進入至該固疋座1〇4之容置室1〇5内。另外，該複數個卡榫2〇卜穿槽 202以及導槽203㈤角度間距是一樣的，以供該鏡筒1〇1能無誤的容置於該 ^ 固疋座内之各置至1〇5，且其卡榫2〇1可經由該調焦套筒1〇3之導槽2〇3進 入至該曲線溝槽109内。 可以瞭解到，固定座104上的穿槽2〇2及調焦套筒1〇3上的導槽2〇3 的寬度要稱大於卡榫2〇1的外徑，且該卡榫2〇1的形狀需能套合於曲線溝 槽109内，並於其内移動。 第3圖繪示依據本發明之鏡頭組立結構的組立流程圖。該 組立方法之流程包括以下步驟·· 7 200825495 步驟S302 :套置一調焦套筒套i〇3於一鏡筒1〇1外侧及一固定座1〇4 外侧。 步驟S304 ·容置該鏡筒1〇1於該固定座1⑽之一容置室内，係藉 由將該鏡筒101外側之一托框102上的複數個卡榫2〇1沿著該固定座1〇4 之複數個穿槽202移動而使該鏡筒1〇1移入至該容置室1〇5内，且其卡榫 201外露該固定座104外。 步驟S306:導引該卡榫201沿著該調焦套筒103之導槽203至該曲線 溝槽109，旋動該調鏡套筒103，以該調焦套筒103之曲線溝槽109卡合該 卡榫201，固定該鏡筒1〇1。 步驟S308:以該調焦套筒103之曲線溝槽1〇9與該卡榫201配合做動， 透過轉動該調焦套筒103以完成調焦或變倍的功能。 是以，相較於先前技術，本發明之鏡頭組立結構及組立方法係利用鏡 筒的卡榫、固定座的穿槽、及調焦套筒的導槽而改善其組立時間的耗損， 減少組立元件數量。意即當組立鏡頭時，如解像不良就必須再重組鏡頭， 若用原先的機構就必須要鬆開螺絲才能分開鏡筒和固定座，而本發明則無 須鬆動螺絲，只需把托框旋動至一定的位置就能分解鏡筒和固定座，可減 少旋開螺絲的時間，有效減少工時。 雖然本發明已以較佳實施例揭露如上，然其並非用以限定本發明，任 何熟悉此項技藝者，在不脫離本發明之精神和範圍内，當可做些許更動與 潤飾’因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 8 200825495 第1圖繪示依據本發明之先前技術中鏡頭組立結構圖。 第2圖繪示依據本發明之實施例中鏡頭組立結構圖。 第3圖繪示依據本發明之鏡頭組立結構的組立流程圖。 【主要元件符號說明】 101 鏡阂 102 托框 103 調焦套筒 104 固定座 105 容置室 106 螺孔 107 螺絲 108 軸承 109 曲線溝槽 110 溝槽 201 卡榫 202 穿槽 203 導槽 9200825495 IX. Description of the Invention: [Technical Field] The present invention relates to a lens assembly structure, and more particularly to a lens assembly structure having a cassette, which is suitable for a projector lens. The present invention also relates to a method of assembling the aforementioned group structure. [Prior Art] In the projector, when the object image is zoomed in or out with a lens with adjustable focal length, the lens must be reorganized when the image is poor, so the lens assembly structure affects the convenience of use. Of course, changing the lens The organizational structure is bound to affect costs. Please refer to the first figure, which is a lens assembly structure of the prior art, which comprises a lens barrel 1〇1, which accommodates a lens group required inside, and a support frame 102 on the outer side to strengthen the mechanical strength of the lens barrel 1〇1. In order to avoid deformation, the frame is provided with a plurality of screw holes 106; a focusing sleeve 103 is provided with a plurality of curved grooves 109; a fixing seat 1〇4, a plurality of grooves 11〇 are arranged in the axial direction, and the inner side thereof has a receiving chamber 105; a plurality of screws 1〇7 and a plurality of bearings 1〇8, and the spacing between the plurality of screw holes 1〇6 and the plurality of slots 110 are _like. The assembly mode is that the focusing sleeve 103 is sleeved on the outside of the mirror and the mounting seat is disposed on the side of the mounting bracket, and the lens barrel 1〇1 is received in the receiving chamber 105 of the fixing base 104. . The plurality of screw holes 1〇6 of the frame correspond to the plurality of grooves 110 on the fixing seat. After the plurality of screws 1 〇 7 are placed on the plurality of bearings 1 〇 8 , a plurality of curved grooves 1 〇 9 of the focusing sleeve 103 and the grooves 11 该 of the fixing seat 1 〇 4 are inserted, and A plurality of screw holes 1〇6 of the outer frame of the lens barrel 1〇1 are screwed to achieve the purpose of assembling the frame. The curve groove 1 () 9 of the focus sleeve is engaged with the bearing (10) of the screw 1 () 7 to be rotated, and the focus adjustment sleeve 103 is rotated to complete the function of focusing or zooming. 5 200825495 However, in the above-mentioned assembly method, when the lens needs to be reorganized when the lens is poorly resolved, the screw must be loosened to separate the lens barrel from the holder. Not only does it take time, but there are many components. Therefore, it is necessary to develop a kind of organizational structure to solve the above problems. SUMMARY OF THE INVENTION The object of the present invention is to provide a set of time, turn, and shout less when the solution is poor. The time required to reorganize the lens is to effectively reduce the working hours. Another object of the present invention is to provide a group readout of the seed surface to reduce the number of components and reduce costs. The mirror erect structure of the invention comprises a _ barrel, the outer tray has a plurality of cassettes, the fixing seat 'the plurality of slots are arranged in the miscellaneous direction, the contact has a accommodating chamber, ... the focusing sleeve, the setting A plurality of curved trenches' are disposed in the axial direction to connect a plurality of guiding grooves to the plurality of curved trenches. In addition, the angular spacing of the plurality of latching, slotting and guiding slots is the same. The assembly method is that the sleeve is placed on the lens barrel and the plurality of cassettes on the outer side of the lens barrel are moved along the plurality of slots of the fixed seat to accommodate the barrel. The fixed % seat accommodates the room. The cassette also moves along the guiding groove inside the focusing sleeve to the curved groove, and rotates the adjusting sleeve, and the curved groove of the focusing sleeve engages the locking plate to fix the mirror The cylinder, in order to achieve the purpose of assembling the lens. The difference between the present invention and the prior art is that there is no need to loosen the screw, and it is only necessary to rotate the bracket to the position where the guide groove is located to separate the lens barrel from the fixed seat, thereby reducing the time for unscrewing the screw. Further, the cartridge is used to replace the screws, bearings and screw holes used in the prior art, and the groove on the fixing seat and the guide groove on the focusing sleeve are used to improve the wear time of the assembly time. 6 200825495 Reduced assembly The number of components. As explained above, the advantages of the present invention include: (i) saving time spent reassembling the lens; and (2) reducing the number of components of the lens and reducing costs. [Embodiment] FIG. 2 shows a lens assembly structure according to an embodiment of the present invention, which is suitable for a lens assembly structure on a projector lens, and mainly includes a lens barrel 1〇1, which houses a lens required therein. Group (not shown), a support frame 1〇2 is arranged on the outer side to strengthen the mechanism strength of the lens barrel 1〇1 to avoid deformation, and a plurality of cassettes 2〇1 are arranged on the frame 1〇2; 1〇3, a plurality of curved grooves 109 are provided, and a plurality of guide grooves 2〇3 are disposed in the axial direction, and are connected to the plurality of curved grooves 1〇9, which are used for the guide grooves 2〇3 Guide the card 榫2〇1 to the curved groove 1〇9; a fixing seat 104 having an accommodating chamber 1〇5 on the inner side thereof, and from the front end of the accommodating chamber 1〇5, axially The plurality of slots 202' are provided for the slots 202 to be moved by the cassettes 2〇1 of the barrels 1 to cause the barrel 101 to enter the housing chambers 1〇5 of the holders 1〇4. In addition, the plurality of latches 202 and the slots 203 (five) have the same angular spacing, so that the lens barrels 1〇 can be placed in the fixed sockets to the first and second sides. And the cassette 2〇1 can enter the curved groove 109 via the guiding groove 2〇3 of the focusing sleeve 1〇3. It can be understood that the width of the slot 2〇2 on the fixing base 104 and the guiding slot 2〇3 on the focusing sleeve 1〇3 is greater than the outer diameter of the cassette 2〇1, and the cassette 2榫1 The shape needs to fit within the curved groove 109 and move within it. FIG. 3 is a flow chart showing the assembly of the lens assembly structure according to the present invention. The flow of the assembly method includes the following steps: 7 200825495 Step S302: Locating a focusing sleeve sleeve i〇3 on the outside of a lens barrel 1〇1 and outside a fixing seat 1〇4. Step S304: accommodating the lens barrel 1〇1 in one of the fixing bases 1 (10), by using a plurality of cassettes 2〇1 on one of the outer frames of the lens barrel 101 along the fixing base The plurality of slots 202 of 1〇4 move to move the lens barrel 1〇1 into the receiving chamber 1〇5, and the cassette 201 is exposed outside the fixing base 104. Step S306: guiding the cassette 201 along the guiding groove 203 of the focusing sleeve 103 to the curved groove 109, and rotating the adjusting sleeve 103 to form a curved groove 109 of the focusing sleeve 103. The cartridge 201 is fixed to fix the lens barrel 1〇1. Step S308: The curved groove 1〇9 of the focusing sleeve 103 cooperates with the cassette 201 to perform the function of focusing or zooming by rotating the focusing sleeve 103. Therefore, compared with the prior art, the lens assembly structure and the assembly method of the present invention utilize the cassette of the lens barrel, the groove of the fixing seat, and the guide groove of the focusing sleeve to improve the wear time of the assembly time and reduce the assembly. The number of components. That is to say, when the lens is assembled, if the image is bad, the lens must be reorganized. If the original mechanism is used, the screw must be loosened to separate the lens barrel and the fixed seat. However, the present invention does not need to loosen the screw, and only needs to rotate the frame. By moving to a certain position, the lens barrel and the fixing base can be decomposed, which can reduce the time for unscrewing the screw and effectively reduce the working hours. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS 8 200825495 FIG. 1 is a view showing a lens assembly structure in the prior art according to the present invention. FIG. 2 is a view showing a lens assembly structure according to an embodiment of the present invention. FIG. 3 is a flow chart showing the assembly of the lens assembly structure according to the present invention. [Main component symbol description] 101 Mirror 102 holder frame 103 Focusing sleeve 104 Mounting seat 105 accommodating chamber 106 Screw hole 107 Screw 108 Bearing 109 Curve groove 110 Groove 201 榫 202 Groove 203 Guide groove 9