M318737 八、新型說明： 【新型所屬之技術領域】 本新型是有關於一種光學鏡頭，特別是指一種鏡頭與 外觀環的組合體。 【先前技術】 參閱圖1、2分別為現有一種投影機鏡頭之立體分解圖 及剖面圖，並包含一鏡頭3、一外觀環4，及三螺絲5。該 鏡頭3包括一鏡筒31，該鏡筒31具有三沿該鏡筒31之圓 周方向呈等角度分佈之螺孔311，該等螺絲5是分別與該等 螺孔311螺合。該外觀環4包括一套設於該鏡筒31之内環 壁41，該内環壁41具有三限位孔411，用以與該等螺絲5 卡合，進而將該外觀環4固定於該鏡筒31上。 由於該鏡筒3 1必須加工出該等螺孔3丨丨，又必須嫘鎖 該等螺絲5，所需之部品數量多且組裝程序較多，因此需較 高之生產成本及組裝工時。 【新型内容】 因此，本新型之一目的，即在提供一種可減少部品數 量，進而降低生產成本之鏡頭與外觀環的組合體。 本新型之又目的’即在提供一種可降低組裝工時之 鏡頭與外觀環的組合體。 於是，本新型之鏡頭與外觀環的組合體，包含一鏡頭 ，及一外觀環。 該鏡頭包括一鏡筒，該鏡筒具有複數一體成型之凸出 部。 5 M318737 該外觀環包括一環繞該鏡頭之内環壁，該内環壁具有 複數與該等凸出部卡合之限位部。 本新型之外觀環藉由該内環壁之限位孔與該鏡筒之凸 出部卡合而固定於該鏡筒，可快速組裝並減少部品之使用 數量，進而降低生產成本及組裝工時。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在M318737 VIII. New description: [New technical field] The present invention relates to an optical lens, in particular to a combination of a lens and an appearance ring. [Prior Art] Referring to Figures 1 and 2, respectively, an exploded perspective view and a cross-sectional view of a conventional projector lens, and including a lens 3, an appearance ring 4, and three screws 5. The lens 3 includes a lens barrel 31 having three screw holes 311 which are equiangularly distributed along the circumferential direction of the lens barrel 31, and the screws 5 are screwed into the screw holes 311, respectively. The outer ring 4 includes a set of inner ring walls 41 of the lens barrel 31. The inner ring wall 41 has three limiting holes 411 for engaging with the screws 5, thereby fixing the outer ring 4 to the outer ring 4 On the lens barrel 31. Since the lens barrel 31 must process the screw holes 3, and the screws 5 must be locked, the number of parts required is large and the assembly procedure is large, so that high production cost and assembly man-hour are required. [New content] Therefore, it is an object of the present invention to provide a combination of a lens and an appearance ring which can reduce the number of parts and further reduce the production cost. A further object of the present invention is to provide a combination of a lens and an appearance ring which can reduce assembly man-hours. Thus, the combination of the lens and the appearance ring of the present invention comprises a lens and an appearance ring. The lens includes a lens barrel having a plurality of integrally formed projections. 5 M318737 The outer ring includes an inner ring wall surrounding the lens, and the inner ring wall has a plurality of limiting portions that engage with the protruding portions. The appearance ring of the present invention is fixed to the lens barrel by the limiting hole of the inner ring wall and the protruding portion of the lens barrel, which can quickly assemble and reduce the number of parts used, thereby reducing production cost and assembly man-hour. . [Embodiment] The foregoing and other technical contents, features and effects of the present invention are
以下配合參考圖式之一較佳實施例的詳細說明中，將可清 楚的呈現。 入…Η叫，个艰丨：现 與外觀環的組合體之較佳實施例是適用於—投影機，並 含一鏡頭1，及一外觀環2。 該鏡頭1包括一鏡筒u、五片設置於該鏡筒u内之' 數體成型之凸出部lu，及 3螺合之外螺紋⑴，其卜該等凸出部ui分別是= 狀且沿该鏡筒^之圓周方向呈等角产八德.. ，該等凸出部⑴之數目可視二^ :佈，值得說明的; ，在本實施例中，該等凸h /關之尺寸而彈性調4 数曰了依所需之光學特性 在本施例中，該鏡筒u 接用入 欠化。又， 體形成該等凸出部U1，惟本新=不讀加卫製成’直接- 塑卿:體射出成型而具有該等凸=。，例如亦可以 该外觀環2包括—環繞該鏡頭 一環繞 M318737 該内環壁21之外環壁22，及一由該内環壁21之一侧緣延 伸且與該外環壁22相連接之前端壁23。該内環壁21具有 複數與該等凸出部ill卡合之限位部211，每一限位部211 各具有一限位孔212,及一由該内環壁21之一側緣延伸且 與該限位孔212連通之滑槽213，其中，該滑槽213之寬度 小於該限位孔212之孔徑。該外環壁22具有一形成於一外 周面且橫截面呈錯齒狀之止滑部221。In the following detailed description of a preferred embodiment of the drawings, reference will be made. The preferred embodiment of the combination of the present and the appearance ring is suitable for the projector, and includes a lens 1 and an appearance ring 2. The lens 1 includes a lens barrel u, five pieces of a plurality of shaped protrusions lu disposed in the lens barrel u, and three threaded external threads (1), wherein the protrusions ui are respectively shaped And in the circumferential direction of the lens barrel ^ is an equal angle of production of Bade.., the number of the protrusions (1) can be seen as two: cloth, worthy of explanation; in this embodiment, the convex h / off The size and the elasticity of the number are adjusted according to the required optical characteristics. In this embodiment, the lens barrel u is used in the under-induction. Further, the body forms the projections U1, but the new = not read and made into the 'direct-plastic: body injection molding with the convex =. For example, the appearance ring 2 may include a ring surrounding the outer ring wall 22 of the M318737 surrounding the lens, and a side edge extending from one of the inner ring walls 21 and connected to the outer ring wall 22. Front end wall 23. The inner ring wall 21 has a plurality of limiting portions 211 that are engaged with the protruding portions ill. Each of the limiting portions 211 has a limiting hole 212 and a side edge of the inner ring wall 21 extends. The sliding slot 213 is connected to the limiting hole 212. The width of the sliding slot 213 is smaller than the aperture of the limiting hole 212. The outer ring wall 22 has a stopper portion 221 formed on an outer peripheral surface and having a toothed cross section.
該外觀環2與該鏡頭丨組裝時，先使該鏡頭丨之凸出 部U!與該外觀環2之滑槽213相對，再將該外觀環2往該 鏡頭1之鏡筒11推送，使該等凸出部U1個別通過與其相 對之滑槽213而進入該限位孔212，由於每—滑槽213之寬 度是小於每一限位孔212之孔徑，因此該等凸出部⑴將卡 合於=等限位孔212内’並使得該外觀環2㈣於該鏡頭i 之鏡筒11。組裝完成後，使用者可藉由旋轉該外觀環2而 帶動該鏡筒U相對該承座13螺進或螺退，以達到改變焦距 开目的在本實例中，該外觀環2是採用塑膠材質 惟本新型不以此為限，只要是易使該等滑槽213彈【 擴張之材質均可適用。 為非2提的疋’在—變化例中，該外觀環2之滑槽213 環壁2、Γ之之特徵，該外觀環2之每—限位孔212是由該内 :凹設而具有—寬度小於該限位孔212之開 同樣可與鏡頭1之凸出部111卡合。 孔21=，本新型之外觀環2藉:該内環"之限位 與该鏡頭卜體成型之凸出部⑴卡合而固定於該鏡 7 M318737 笱11，可快速組裝並減少部品之使用數量，進而降低，生產 成本及組裝工時，故確實能達到本新型之目的。 惟以上所述者，僅為本新型之較佳實施例而已，當不 $以此限定本新型實施之範圍，即大凡依本新型申請專利 範圍及新型說明内容所作之簡單的等效變化與修飾，皆仍 屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是習知一 _ e 投影機鏡頭之立體分解圖，其中一外繼 衣疋以局部剖視呈現； 规 是習知該投影機鏡頭之一剖面圖，說明該外觀環 與 圖2 鏡筒組裝之情形； 圖 外觀環是以局部剖視呈現；及"例之立體刀解圖’其中- 環與I參二本新型該較佳實施例之—剖面圖，說明該外 鏡筒組裝之情形 觀 M318737 【主要元件符號說明】 1…… …·鏡頭 21 ····· •…内環壁 11 ·.··· 鏡闾 211… •…限位部 111… •…凸出部 212… …·限位孔 112… …·外螺紋 213… •…滑槽 12••… 鏡片 22••… •…外環壁 13…·. •…承座 221… •…止滑部 2…… •…外觀環 23 ♦ •… •…前端壁When the outer ring 2 is assembled with the lens cymbal, the protruding portion U! of the lens cymbal is first opposed to the sliding groove 213 of the outer ring 2, and the outer ring 2 is pushed toward the lens barrel 11 of the lens 1. The protrusions U1 are respectively inserted into the limiting holes 212 through the sliding slots 213 opposite thereto. Since the width of each of the sliding slots 213 is smaller than the aperture of each of the limiting holes 212, the protruding portions (1) will be stuck. Fitted in the = equal position hole 212' and the outer ring 2 (four) is placed on the lens barrel 11 of the lens i. After the assembly is completed, the user can rotate the outer ring 2 to drive the lens barrel U to screw or retreat relative to the socket 13 to achieve the purpose of changing the focal length. In the present example, the appearance ring 2 is made of plastic material. However, this new type is not limited to this, as long as it is easy to make these chutes 213 [expanded material can be applied. In the case of a variant of the outer ring 2, the groove 213 of the outer ring 2 is characterized by a ring wall 2, and the limit hole 212 of the outer ring 2 is formed by the inner: recessed The opening having a width smaller than the limiting hole 212 can also be engaged with the protruding portion 111 of the lens 1. Hole 21=, the appearance loop 2 of the present invention: the limit of the inner ring is engaged with the protrusion (1) formed by the lens body and fixed to the mirror 7 M318737 笱11, which can quickly assemble and reduce parts The use of the quantity, and thus the reduction, production cost and assembly man-hours, can indeed achieve the purpose of the present invention. However, the above is only the preferred embodiment of the present invention, and does not limit the scope of the present invention, that is, the simple equivalent change and modification of the novel patent application scope and the new description content. , are still within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a conventional lens of a projector, in which a peripheral garment is presented in a partial cross-section; a gauge is a cross-sectional view of the projector lens, illustrating the appearance The ring is assembled with the lens barrel of FIG. 2; the appearance ring is shown in partial cross-section; and the "three-dimensional knife solution of the example" is a cross-sectional view of the preferred embodiment of the present invention. Situation of assembly of the outer barrel M318737 [Description of main component symbols] 1...... ...·Lens 21 ······... Inner ring wall 11 ····· Mirror 211... •...Limit part 111... ... bulging portion 212 ... ... ... limiting hole 112 ... ... external thread 213 ... • ... chute 12 ••... lens 22 ••... •...outer ring wall 13...·.......seat 221... Sliding part 2... •... Appearance ring 23 ♦ •... •...Front end wall