1252941 五 、發明說明 (1) [ 發明 所 屬 之 技術 領 域 ] 本 發 明 係 有關 於 一 種 變 焦 裝 置 J 特別是 有關 於一種利 用 機 構動 作 實 行 光學 變 焦 的 變 焦 裝 置 〇 [ 先前 技 術 ] 傳 統 之 變 焦裝 置 ( 請 參 考 第 1圖） 在結構上， 除了第- 鏡 筒11及 第 二 鏡筒 12所 組 成 的 鏡 筒 組 10外， 並包 含有直線 槽 套 筒1E > 圓 柱 凸輪 套 筒 14及 外 套 筒 1Ε 丨，共有 四層 套筒以構 成 整 個變 焦 裝 置 。其 中 J 該 圓 柱 凸 輪 套 筒14藉 由設 於其上之 曲 線 凹槽 140 可正確控制第一 -群鏡筒1 1與第二群鏡筒1 2間相 對 變化 之 距 離 ，以 維 繫 焦 平 面 於 一 恆 定位置 ，而 該直線槽 套 筒 13， 則 限 制 鏡闾 組 10之 光 學 組 件 於 直線上 作前 後移動。 [ 發明 内 容 ] 本 發 明 的 目的 在 提 供 ^ 種 變 焦 裝 置，可 減少 機構件數 與 達 到小 型 化 之 目的 0 本 發 明 係 為一 種 變 焦 裝 置 包 括 :一具 有滑 槽的鏡筒 1 複 數個 鏡 片 固 定環 設 置 於 鏡 筒 内 部 ，鏡片 固定 環内部設 置 有 複數 個 光 學 鏡片 ； 一 凸 輪 筒 設 置 於鏡筒 的外 側，具有 複 數 個導 槽 與 一 齒形 凸 部 5 導 槽 具 有 複 數段非 變焦 區段導槽 ， 又 凸輪 筒 更 設 置有 一 連 通 槽 連 接 凸 輪筒上 導槽 的非變焦 區 段 導槽 ； 以 及 一驅 動 裝 置 組 設 置 於 凸輪筒 外側 。鏡筒在 相 對 於滑 槽 位 置 1 8 0度處設置有- -第一 -定位部 ’用於導引鏡片 固 定環 移 動 〇 另外 鏡 片 固 定 環 設 置 有一凸 出部 ，延伸通 過 於 鏡筒 的 滑 槽 ，又 在 凸 出 部 位 置 設 置有一 導柱 ’導柱係 與 凸 輪筒 之 導 槽 嵌合 更 在 相 對 應 於 鏡 筒之第 一定 位部位置 j1252941 V. Technical Description of the Invention [Technical Field] The present invention relates to a zoom device J, and more particularly to a zoom device that performs optical zoom using a mechanism action. [Prior Art] A conventional zoom device (please refer to Fig. 1 is structurally except for the lens barrel group 10 composed of the first barrel 11 and the second barrel 12, and includes a linear groove sleeve 1E > a cylindrical cam sleeve 14 and an outer sleeve 1Ε There are four layers of sleeves to form the entire zoom unit. Wherein the cylindrical cam sleeve 14 can correctly control the relative change distance between the first-group lens barrel 1 1 and the second group lens barrel 12 by the curved groove 140 disposed thereon to maintain the focal plane in one The constant position, and the linear groove sleeve 13, limits the optical components of the mirror group 10 to move back and forth in a straight line. SUMMARY OF THE INVENTION An object of the present invention is to provide a zoom device that can reduce the number of components and achieve miniaturization. The present invention is a zoom device including: a lens barrel having a chute 1 a plurality of lens fixing ring settings Inside the lens barrel, a plurality of optical lenses are disposed inside the lens fixing ring; a cam barrel is disposed on the outer side of the lens barrel, and has a plurality of guiding grooves and a tooth-shaped convex portion 5, and the guiding groove has a plurality of non-zooming section guiding grooves. Further, the cam barrel is further provided with a non-zoom section guide groove connecting the slot to the upper slot of the cam barrel; and a driving device group is disposed outside the cam barrel. The lens barrel is provided with a first-positioning portion for guiding the lens fixing ring to move at a position of 180 degrees with respect to the chute position, and the other lens fixing ring is provided with a protruding portion extending through the sliding groove of the lens barrel And a guide post is disposed at the position of the protrusion portion, and the guide post is fitted to the guide groove of the cam barrel to correspond to the position of the first positioning portion of the lens barrel.
1252941 五、發明說明（2) 設置有相對應的第二定位部。鏡片固定環的寬度係由鏡筒之 滑槽與凸輪筒的導槽在滑槽方向所交叉形成的最大間隙寬度 決定。在貫施例中，第一定位部係為一凸部，且第二定位部 係為一凹部。驅動裝置紐包括：一步進馬達，設置有一出力 轴’以及一齒輪’設置於馬達的出力轴上與凸輪筒的齒形凸 部嚅合。 【實施方式】 為了讓本發明之上述和其他目的、特徵、和優點能更明 顯易懂’特舉實施例，並配合所附圖示，作詳細說明如下。 第2圖顯示本發明變焦裝置的第一實施例，在本實施例 中，鏡筒1 0 1上設置有一滑槽1 〇 2與一第一定位部1 〇 3 ;鏡片 固定環1 〇 4具有一缺口 ；[ 0 5與一寬度1 〇 6，而光學鏡片1 〇 7係固 定於鏡片固定環10 4之缺口 1〇5内，鏡片固定環4具有一凸 出部108，凸出部10 8上設置有一導柱1〇9，且鏡片固定環1〇4 上設置有一第二定位部11 〇，設置於相對應第一定位部1 〇 3且 相對凸出部1 0 8 1 8 0度之處；鏡片固定環1 〇 4利用凸出部1 〇 8與 第二定位部1 1 0，分別配合鏡筒1 〇 1之滑槽1 〇 2與第一定位部 103，設置於鏡筒101内；鏡筒1〇1外側係為一凸輪筒m，該 凸輪筒1 1 1上設置有複數個導槽1 1 2與連接該複數個導槽1 1 2 的連通槽1 1 3 ;在組裝時，待鏡片固定環1 〇 4與光學鏡片i 〇 7 組裝完成後，置入鏡筒1 0 1内，此時所有的鏡片固定環1 〇 4均 只能延鏡筒1 0 1轴心方向移動；然後將凸輪筒1 1 1的連通槽 1 1 3對準鏡筒1 0 1的滑槽1 0 2，滑入結合鏡筒1 〇丨與凸輪筒 111 ;待鏡筒1 0 1與凸輪筒111結合後，此時鏡片固定環1 〇 4上1252941 V. Description of the invention (2) A corresponding second positioning portion is provided. The width of the lens retaining ring is determined by the maximum gap width formed by the chute of the lens barrel and the guide groove of the cam barrel intersecting in the direction of the chute. In the embodiment, the first positioning portion is a convex portion, and the second positioning portion is a concave portion. The driving device includes a stepping motor provided with a power output shaft 'and a gear wheel' disposed on the output shaft of the motor to engage with the toothed convex portion of the cam barrel. The above and other objects, features, and advantages of the present invention will become more apparent and understood in the < 2 shows a first embodiment of the zoom device of the present invention. In the embodiment, the lens barrel 1 0 1 is provided with a sliding slot 1 〇 2 and a first positioning portion 1 〇 3; the lens fixing ring 1 〇 4 has a notch; [0 5 and a width of 1 〇6, and the optical lens 1 〇7 is fixed in the notch 1〇5 of the lens fixing ring 104, the lens fixing ring 4 has a protrusion 108, and the protrusion 10 8 A guide post 1〇9 is disposed on the lens fixing ring 1〇4, and a second positioning portion 11〇 is disposed on the corresponding first positioning portion 1〇3 and opposite to the protruding portion 1 0 8 1 8 0 degrees. The lens fixing ring 1 〇4 is disposed in the lens barrel 101 by the protrusion 1 〇 8 and the second positioning portion 1 1 0, respectively, and the sliding groove 1 〇 2 of the lens barrel 1 〇 1 and the first positioning portion 103 are respectively disposed. The outer side of the lens barrel 1〇1 is a cam barrel m, and the cam barrel 1 1 1 is provided with a plurality of guiding grooves 1 1 2 and a connecting groove 1 1 3 connecting the plurality of guiding grooves 1 1 2; After the lens fixing ring 1 〇4 and the optical lens i 〇7 are assembled, they are placed in the lens barrel 1 0 1 , at this time, all the lens fixing rings 1 〇 4 can only extend the lens barrel 1 0 1 axial direction shift Then, the communication groove 1 1 3 of the cam barrel 1 1 1 is aligned with the chute 1 0 2 of the lens barrel 1 0 1 , and is slid into the combined lens barrel 1 〇丨 and the cam barrel 111; the lens barrel 1 0 1 and the cam After the barrel 111 is combined, at this time, the lens fixing ring 1 〇 4
1252941 五、發明說明（3) 的導柱1 0 9係欲入凸輪筒1 1 1上的導槽1 1 2中，然後調整鏡片 固定環1 0 4的位置進入凸輪筒1 1 1上對應的的非變焦區段導槽 1 1 4，再旋轉凸輪筒11 1讓鏡片固定環1 〇 4定位；凸輪筒π !上 設置有一齒形凸部1 1 5，與驅動裝置組中的齒輪1 1 β相屬合， 該齒輪1 1 6係設置在步進馬達1 1 7的出力軸1 1 8端，利用步進 馬達1 1 7驅動齒輪116，齒輪再帶動凸輪筒in,使得鏡片固 定環1 0 4可因為凸輪筒1 1 1上的導槽1 1 2與鏡筒1 〇 1上的滑槽 1 0 2相互作用下，延著滑槽1 〇 2方向移動，帶動光學鏡片丄〇 7 達到變焦的目的，如第3圖所示。 需特別注意的疋，因本發明係利用鏡片固定環1 〇 4透過 鏡筒1 0 1上的滑槽1 02與凸輪筒u丨上的導槽丨丨2相互作用，達 到變焦的目的，但因滑槽1 02與導槽i丨2交錯處會形成空隙， 造成漏光現象，所以鏡片固定環i 〇 4的寬度必須大於滑槽與 導槽交錯所形成的最大間隙寬度，以達到遮光的效果。 在另一實施例中（未圖示），鏡片固定環i 〇4之第二定 位部1 1 0的位置係設置於相對凸出部丨〇 8 i 2 〇度與2 4 〇度處，而 鏡筒1 0 1之第一定位部1 〇 3則相對應設置於相對滑槽丨〇 2丨2 〇度 與240度處。 在又一實施例中（未圖示），鏡片固定環i 0 4之第二定 位部1 1 0的位置係設置於相對凸出部i 〇 8 9 〇度、丨8 〇度盥2 7 〇度 處，而鏡筒101之第一定位部1〇3則相對應設置於相對滑槽 1 0 2 9 0度、1 8 0度與2 7 0度處。1252941 V. The guide column 1 0 9 of the invention description (3) is intended to enter the guide groove 1 1 2 on the cam barrel 1 1 1 , and then adjust the position of the lens fixing ring 104 to enter the corresponding position on the cam barrel 1 1 1 The non-zoom section guide groove 1 1 4, and the rotating cam barrel 11 1 positions the lens fixing ring 1 〇 4; the cam barrel π ! is provided with a tooth-shaped convex portion 1 15 , and the gear 1 1 in the driving device group The β phase is combined, the gear 1 16 is disposed at the output shaft 1 18 end of the stepping motor 1 17 , and the gear 116 is driven by the stepping motor 1 17 , and the gear drives the cam barrel in again, so that the lens fixing ring 1 0 4 because the guide groove 1 1 2 on the cam barrel 1 1 1 interacts with the chute 1 0 2 on the lens barrel 1 〇1, and moves in the direction of the chute 1 〇 2 to drive the optical lens 丄〇7 to reach The purpose of the zoom is shown in Figure 3. Special attention should be paid to the present invention. The present invention utilizes the lens retaining ring 1 〇4 to interact with the guide groove 丨 2 on the cam barrel u丨 through the chute 102 on the lens barrel 1 0 1 to achieve the purpose of zooming, but Since the gap between the chute 102 and the guide groove i丨2 will form a gap, causing light leakage, the width of the lens fixing ring i 〇4 must be larger than the maximum gap width formed by the staggered groove and the guide groove to achieve the shading effect. . In another embodiment (not shown), the position of the second positioning portion 110 of the lens fixing ring i 〇 4 is set at a relative convex portion i 8 i 2 and a degree of 2 4 ,, and The first positioning portion 1 〇3 of the lens barrel 1 0 1 is correspondingly disposed at the relative sliding groove 丨〇2丨2 and 240 degrees. In still another embodiment (not shown), the position of the second positioning portion 1 1 0 of the lens fixing ring i 0 4 is set at the relative convex portion i 〇 8 9 〇, 丨 8 盥 盥 2 7 〇 At the same time, the first positioning portion 1〇3 of the lens barrel 101 is correspondingly disposed at the relative chutes 10,290 degrees, 180 degrees, and 270 degrees.
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1252941 圖式簡早說明 【圖式簡單說明】 第1圖係為習知變焦裝置之示意圖； 第2圖係為本發明變焦裝 第3圖係為本發明本發明 【主要元件符號說明】 1 0鏡筒組 12第二鏡筒 1 4圓柱凸輪套筒 101鏡筒 1 0 3第一定位部 1 0 5 缺口 107光學鏡片 1 0 9導柱 1 1 1凸輪筒 1 1 3連通槽 1 1 5齒形凸部 1 1 7步進馬達 1 4 0曲線凹槽 置組裝爆炸示意圖；以及 變焦裝置組裝示意圖。 1 1第一鏡筒 1 3直線槽套筒 1 5外套筒 1 0 2滑槽 1 0 4鏡片固定環 106寬度 I 0 8凸出部 II 0第二定位部 1 1 2導槽 1 1 4非變焦區段導槽 116齒輪 1 1 8出力轴1252941 Brief description of the drawing [Simplified description of the drawing] Fig. 1 is a schematic diagram of a conventional zooming device; Fig. 2 is a zooming fixture of the present invention. Fig. 3 is a diagram of the present invention [Description of main components] 1 0 Tube group 12 second barrel 1 4 cylindrical cam sleeve 101 barrel 1 0 3 first positioning part 1 0 5 notch 107 optical lens 1 0 9 guide column 1 1 1 cam barrel 1 1 3 communication slot 1 1 5 teeth Shaped protrusion 1 1 7 stepping motor 1 40 Curved groove set assembly explosion diagram; and zoom device assembly schematic. 1 1 first barrel 1 3 linear groove sleeve 1 5 outer sleeve 1 0 2 chute 1 0 4 lens fixing ring 106 width I 0 8 projection II 0 second positioning part 1 1 2 channel 1 1 4 Non-zoom section guide groove 116 gear 1 1 8 output shaft