1314224 九、發明說明： 【發明所屬之技術領域】 本發明係關於-種鏡頭之組立結構，尤指―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-圖，係先前技術之鏡頭組立結構，其包含—韻⑻，其内 部收納所需的鏡片組，外側設置-托框⑽，加強該鏡筒⑼的機構強度， 以免變形’眺框設置複數俩孔1G6織㈣⑽，設置複數個曲線 溝槽109 ; -固定座104，沿軸向設置複數個溝槽11〇，且其内側具有一容 置室105 ;複數個螺絲107以及複數個轴承1〇8，另外，該複數個螺孔ι〇6 的間距與該複數個溝槽110的間距是一樣的。其組立方式係將該調焦套筒 1〇3套置於該鏡筒ιοί外側及該固定s 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1〇5内。該托框之複數個螺孔1〇6對應於該固定座ι〇4 上的複數個溝槽110 〇以該複數個螺絲1σ7套置該複數個軸承1〇8後，穿設 該調焦套筒1G3之複數個鱗溝槽1G9與棚定座1()4之溝槽UG，且螺合 該鏡筒101外側托框之複數個螺孔1〇6，以達到組立該鏡頭之目的。以該調 焦套筒之曲線溝槽109與該螺絲1〇7所套置之軸承1〇8配合做動，透過轉 動該調焦套筒⑽以完成調焦或變倍的功能。 5 1314224 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。 所以需要發展一種組立架構，以解決上述的問題。 【發明内容】 本發明之一目的係提供一種鏡頭之組立結構，以減少鏡頭於解像不良 時’需重組該鏡頭所耗費之時間，以有效減少工時。 本發明之另一目的係提供一種鏡頭之組立結構，以減少鏡頭之組立元 ® 件，降低成本。 本發明之鏡頭組立結構包含有一鏡筒，其外侧托框具有複數個卡榫， 一固定座’沿轴向設置複數個穿槽，其内部具有一容置室，一調焦套筒， 設置複數個曲線溝槽’且其内部設置沿軸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。 其組立方式係將該調焦套筒套置於該鏡筒外側及該固定座外側，該鏡筒外 側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 1314224 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—鏡筒⑼，其内部收納所需的鏡 片組（未顯示），外側設置一托框1〇2，加強該鏡筒ι〇ι的機構強度，避免 變形’該托框1〇2上設置複數個卡榫加；一調焦套筒1〇3，設置複數個曲 線溝槽1〇9，且其内部設置沿軸向設置複數個導槽2〇3，連通至該等複數個 曲線溝槽⑽’該導槽203係用來導引該卡_至該曲線溝槽一 固定座ΠΗ，其_具有—容置讀，且自該容置請前端起，沿麵向 設置複數個穿槽2〇2’該穿槽加可供該鏡請之卡榫Μ移動而使鏡筒 1〇1進入_定座⑽之容置請内。另外，該複數個卡榫加、穿槽 2〇2以及導槽加的角度間距是—樣的，以供該鏡筒⑼能無誤的容置於該 固疋座内之合置至1〇5，且其卡榫2〇1可經由該調焦套筒⑽之導槽加進 入至該曲線溝槽109内。 可以暸解到’固定座1()4上的穿槽2〇2及調焦套筒⑽上的導槽加 的寬度要稱大於卡榫201的外您. ，且該卡榫201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 1314224 步驟S302 :套置一調焦套筒套103於一鏡筒101外侧及一固定座104 外侧。 _ 步驟S304 :容置該鏡筒1〇1於該固定座1〇4之一容置室1〇5内，係藉 由將該鏡筒101外側之一托框1〇2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ι〇1移入至該容置室1〇5内，且其卡榫 201外露該固定座1〇4外。 步驟S306 :導引該卡榫2〇1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1〇9卡合該 卡榫201，固定該鏡筒101。 步驟S308:以該調焦套筒1〇3之曲線溝槽1〇9與該卡榫2〇1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 1314224 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 A*. Mr 鏡闾 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1314224 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a group structure of a lens, in particular, a lens assembly structure having a cassette, which is suitable for a projector lens. The present invention also has 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. Therefore, 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 rhyme (8), which accommodates a lens group required inside, and an outer setting-support frame (10), which strengthens the mechanical strength of the lens barrel (9) to avoid deformation. A plurality of holes 1G6 woven (four) (10) are provided, and a plurality of curved grooves 109 are provided; a fixing seat 104 is provided with a plurality of grooves 11 沿 in the axial direction, and an accommodating chamber 105 is provided on the inner side thereof; a plurality of screws 107 and a plurality of bearings In addition, the pitch of the plurality of screw holes ι 6 is the same as the pitch of the plurality of grooves 110. The assembly mode is that the focusing sleeve 1〇3 is placed on the outside of the lens barrel ιοί and the fixed s1〇4 side, and the lens barrel 〇1 is received in the accommodating chamber of the fixing base 104. Within 1〇5. The plurality of screw holes 1〇6 of the frame correspond to the plurality of grooves 110 on the fixing seat 〇4, and the plurality of bearings 1〇7 are sleeved by the plurality of screws 1σ7, and the focusing sleeve is inserted. The plurality of scale grooves 1G9 of the barrel 1G3 and the groove UG of the shed seat 1 () 4 are screwed into a plurality of screw holes 1〇6 of the outer frame of the barrel 101 to achieve the purpose of assembling the lens. The curved groove 109 of the focusing sleeve is engaged with the bearing 1〇8 of the screw 1〇7, and the focusing sleeve (10) is rotated to complete the function of focusing or zooming. 5 1314224 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 group structure to solve the above problems. SUMMARY OF THE INVENTION One object of the present invention is to provide a lens assembly structure to reduce the time required for the lens to be reconfigured when the lens is poorly resolved, so as to effectively reduce the working time. Another object of the present invention is to provide a lens assembly structure for reducing the number of components of the lens and reducing the cost. The lens assembly structure of the present invention comprises a lens barrel, the outer frame of the lens has a plurality of cassettes, and the fixing frame is provided with a plurality of slots in the axial direction, and has an accommodation chamber inside, a focusing sleeve, and a plurality of sets The curved grooves 'and the internal arrangement thereof are arranged in the axial direction to connect the plurality of guiding grooves to the plurality of curved grooves. In addition, the angular spacing of the plurality of the latches, the slots and the guiding grooves are the same. The assembly method is that the focusing sleeve is sleeved on the outer side of the lens barrel and outside the fixing seat, and the plurality of cassettes on the outer side of the lens barrel are moved along the plurality of slots of the fixing seat to accommodate the lens barrel In the housing of the fixed seat. 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 1314224 Reduce the 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 (9), which accommodates a lens group required therein. (not shown), a support frame 1〇2 is arranged on the outer side, and the mechanism strength of the lens barrel ι〇ι is strengthened to avoid deformation. A plurality of cassettes are set on the frame 1〇2; a focus sleeve 1〇3 a plurality of curved grooves 1〇9 are disposed, and a plurality of guiding grooves 2〇3 are disposed in the axial direction, and are connected to the plurality of curved grooves (10). The guiding groove 203 is used to guide the card _ To the curved groove, a fixed seat, the _ has a accommodating read, and from the front end of the accommodating, a plurality of slots 2 〇 2 ′ are arranged along the surface to add a card for the mirror.榫Μ Move and let the lens barrel 1〇1 enter the _ seat (10). In addition, the plurality of card insertions, the slots 2〇2, and the angular spacing of the guide slots are the same, so that the lens barrel (9) can be placed in the solid housing in an uncorrected manner to 1〇5. And the cassette 2〇1 can be inserted into the curved groove 109 via the guide groove of the focusing sleeve (10). It can be understood that the width of the groove 2〇2 on the fixing seat 1() 4 and the guiding groove on the focusing sleeve (10) is larger than that of the cassette 201, and the shape of the cassette 201 needs to be able to It fits within the curved groove 109 and moves within it. FIG. 3 is a flow chart showing the assembly of the lens assembly structure according to the present invention. The process of the method includes the following steps: 7 1314224 Step S302: Locating a focusing sleeve 103 outside the lens barrel 101 and outside the fixing base 104. _ Step S304: accommodating the lens barrel 1〇1 in one of the holding chambers 1〇5 of the fixing base 1〇4, by a plurality of cards on the outer side of the lens barrel 101 The 榫2〇1 moves along the plurality of slots 202 of the fixing seat 1〇4 to move the lens barrel ι〇1 into the accommodating chamber 1〇5, and the latch 201 exposes the fixing seat 1〇4 outer. Step S306: guiding the cassette 2〇1 along the guiding groove 203 of the focusing sleeve 103 to the curve | the groove 109, and rotating the adjusting sleeve 103 to curve the groove of the focusing sleeve 103. The groove 1〇9 engages the cassette 201 to fix the lens barrel 101. Step S308: The curved groove 1〇9 of the focusing sleeve 1〇3 cooperates with the cassette 2〇1 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. This means that when the lens is assembled, the lens must be reassembled if the solution is poor. ® If the original mechanism is used, the screw must be loosened to separate the lens barrel and the holder. However, the present invention does not need to loosen the screw, and only the frame is required. Rotating to a certain position can decompose the lens barrel and the fixing seat, which can reduce the time for unscrewing the screw and effectively reduce the working time. While the invention has been described above by way of a preferred embodiment, it is not intended to limit the invention, and the invention may be modified and modified in the present invention 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 1314224 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 A*. Mr mirror 102 102 frame focusing sleeve 104 fixing seat 105 housing chamber 106 screw hole 107 screw 108 bearing 109 curve groove 110 groove 201 cassette 202 through groove 203 guide groove