1325515 八、本案若有化學式時，請揭示最能顯示發明特徵的化學式： 九、發明說明： 【發明所屬之技術領域】 本發明係為一種變焦鏡頭結構，特別是有關於利 用一螺栓固定前後執道鏡筒，再藉由軌道與導槽之交 互關係，使前後鏡片組只需一驅動源即可一起連動。 【先前技術】 請參閱第1圖，係為習知之變焦鏡頭結構。在本 圖中，此變焦鏡頭結構至少包含一第一群鏡頭11、一 第二群鏡頭12、一固定環13、一圓柱凸輪套筒14、一 外套筒15及一驅動齒輪16，其中第一群鏡頭11具有 定位片111及一滑輪112，第二群鏡頭12具有一定位 槽121及滑輪112，固定環13具有定位板131及凸鍵 132，圓柱凸輪套筒14具有多線陽螺紋141、齒輪142 及曲線槽143，外套筒15具有直線凹槽151、多線陰 螺紋152及長孔槽153。在本圖中可清楚看出，第一群 鏡筒11以定位片111套設於第二群鏡筒12之定位槽 121中，而固定環13亦以定位板131套設於第二群鏡 筒12之定位槽121中，藉由定位片111、定位板131 及定位槽121，使第一群鏡筒11、第二群鏡筒12及固 5 1325515 定環13不產生相對位移，並將第一群鏡筒u及第二 群鏡筒12設置於圓柱凸輪套筒14内，並將第一群鏡 筒11上之滑輪112及第二群鏡筒上之滑輪ι12設置於 曲線槽143内，再將圓柱凸輪套筒μ設置於外套筒15 内，並使圓柱凸輪套筒14具有之多線陽螺紋ι41與外 套筒15之多線陰螺紋152相接觸，而固定環13上之 凸鍵132亦套設於外套筒15之直線凹槽ι51内，藉由 設置於外套筒15之長孔槽153内的驅動齒輪16,帶動 圓柱凸輪套筒14轉動，且因外套筒15之多線陰螺紋 152。與圓柱凸輪套筒14之多線陽螺紋14ι之關係，使 得圓柱凸輪套筒14可伸出外套筒15,並使第一群鏡筒 11及第二群鏡筒12伸出圓柱凸輪套筒14，達到變焦 的效果。 一然而，此種變焦鏡頭結構提供第一群鏡頭u及第 ^群鏡頭12在一個小範圍内連動，使得變焦的效果受 =極大的限制，因此便有研發人員為了加大變焦之效 ^，而將兩組鏡頭的相對距離拉長，以提供足夠的變 二距離，但如此通常需要使用到兩個驅動源來做 制，使得整體的體積顯得相當龐大。 1 為滿足上述所提出的使用一驅動源又能夠具有較 諸焦效果的需求。本發明人基於多年從事研究盘 ㈣=驗，經多方研究設計與專騎討，遂於本 出一種變焦結構以作為前述期望一實現方式與 6 •1325515 【發明内容】 有鑑於上述課題，本發明之目的為提供一種變焦 鏡頭結構，利用螺栓固定前後執道鏡筒，再藉由執道 與導槽交互關係，使前後組鏡片只需一驅動源即可一 起連動，達到變焦之目的。 緣是，為達上述目的，依本發明之變焦鏡頭結構， 至少包含一固定鏡筒、一光圈構件、一前執道鏡筒、 一後執道鏡筒、一前鏡片筒模組及一後鏡片組模組。 其中固定鏡筒具有一前鏡筒端及一後鏡筒端，且前鏡 筒端具有至少一第一導槽及一光攔孔，光欄孔係固定 光圈構件，而後鏡筒端具有至少一第二導槽，其中， 光圈構件一般為可變光欄模組且具有一可變光欄及一 馬達。前執道鏡筒具有一筒身、一從動齒輪及一後端 環，而筒身具有至少一第一執道，後端環具有至少一 調焦固定螺孔，並以劣弧狀之從動齒輪連择筒身及後 端環，後軌道鏡筒具有第二軌道及固定螺孔，以一螺 栓藉由調焦固定螺孔及固定螺孔，鎖固前執道鏡筒及 後執道鏡筒，使固定鏡筒、前執道鏡筒及後執道鏡筒 產生相對的轉動，且前鏡片筒模組具有一前鏡筒、第 一導螺柱及前鏡片組，後鏡片筒模組具有一後鏡筒、 第二導螺柱及後鏡片組，藉由該第一、第二導螺柱使 得前鏡片筒模組與後鏡片筒模組可於固定鏡筒内，且 分別於前軌道鏡筒及後軌道鏡筒内移動。 上述之「調焦固定螺孔及固定螺孔」之目的在使 後執道鏡筒與前軌道鏡筒相對轉動時，能具有調整第 7 〜導螺柱及前鏡片筒模組相對於第二導螺柱及後鏡片 筒模組之相對移動的功能，將前鏡片筒模組與後鏡片 筒模組調整到對焦清楚的相對位置後，再藉由螺栓固 定調焦固定螺孔及固定螺孔。此種設計可提供當前鏡 片筒模組與後鏡片筒模組的第一、第二導螺柱製造的 尺寸不精準時，具有利用軌道來調整前鏡片筒模组與 後鏡片筒模組的相對位置，達到對焦清楚的功能。 承上所述，因依本發明之變焦鏡頭結構，前鏡片 筒模組與後鏡片筒模組係分別裝置於固定鏡筒之前鏡 筒端與後鏡筒端處’在將前軌道鏡筒套設於固定鏡筒 之前鏡筒端處，後執道鏡筒套設於固定鏡筒之後鏡筒 端處，藉由裝置於前鏡筒上之第一導螺柱移動於第一 執道及第一導槽内’而裝置於後鏡筒上之第二導螺柱 則移動於第二軌道及第二導槽内，再以螺栓將前軌道 鏡筒與後軌道鏡筒鎖固在一起，當驅動馬達透過齒輪 帶動前軌道鏡筒之從動齒輪，使前軌道鏡筒轉動時， 因光圈構件固定於固定鏡筒之光欄孔中固定不動，使 得固定鏡筒亦維持不動的狀態，藉由固定鏡筒之第一 導槽與前軌道鏡筒之第一執道交互關係，由第一軌道 推動容置於其内之第一導螺柱產生位移，並帶動前鏡 片，模組產生位移，而固定鏡筒之第二導槽與後軌道 鏡筒之第二軌道交互關係，由第二軌道推動容置於其 内j第二導螺柱產生位移，且帶動後鏡片筒模組產生 ^前鏡片筒模組反向之位移，藉由一驅動源即可帶動 前後鏡片組，達到變焦之目的。 级為使責審查委員對本發明之技術特徵及所達 1325515 成之功效有更進一步之瞭解與認識’下文謹提供較佳 之實施例及相關圖式以為輔佐之用’並以詳細之說明 文字配合說明如後。 【實施方式】 以下係本發明之變焦鏡頭結構之較佳實施例’為 使便於理解，下述實施例中之元件符號係沿用與前一 實施例中相同元件之符號來說明。 請一併參閱第2圖及第3圖’第2圖係為本發明 之變焦鏡頭結構爆炸示意圖’第3圖係為本發明之變 焦鏡頭結構與可變光欄模組組合圖。在第2圖中，此 變焦鏡頭結構至少包含一固定鏡筒21、一前軌道鏡筒 22、一後執道鏡筒23、一前鏡片筒模組24及一後鏡片 筒模組25,其中固定鏡筒21具有一前鏡筒端211及一 後鏡筒端212,且在前鏡筒端211兩側設有第一導槽 213，上方設有光欄孔215，此光欄孔之長度係與 可變光欄311之寬度相等，使可變光欄311與光欄孔 215不產生相對位移，後鏡筒端212兩側設有第二導 槽214，且前鏡筒端211之直徑係大於後鏡筒端212 之直徑；而前執道鏡筒22具有一筒身221及一後端環 222 ’且筒身221更具有二相對之第一執道223延伸圍 繞筒身221 ’後端環222上具有二調焦固定螺孔226， 而筒身221與後端環222係以一劣弧狀從動齒輪224 14接’並形成一優弧狀光攔槽225與從動齒輪224相 接’且後端環222之直徑小於筒身221之直徑；後轨 9 1325515 道鏡23具有二相對之第二軌道231延伸圍繞後軌道 • 鏡筒23，在底部具有與調焦固定螺孔226相對應之固 定螺孔232，並以螺栓26鎖固調焦固定螺孔226與固 疋螺孔232’使前軌道鏡筒22與後軌道鏡筒23可同時 作動’又因調焦固定螺孔226呈一長條狀，使得在鎖 固前軌道鏡筒22與後軌道鏡筒23前’可先調整前軌 道鏡筒22與後執道鏡筒23中前鏡片組243及後鏡片 組251之相對位置，使前鐵片筒模組24與後鏡片筒模 • 組25達到最佳之焦距；前钂片筒模組24具有一前鏡 筒241、一前鏡片組243第一螺栓柱245，前鏡筒 241係容置前鏡片組243，炎以一固定環244固定前鏡 片組243不脫離前鏡筒241，再以二第一螺栓柱245穿 入第一導槽213及第一軌道223 ’鎖固在前鏡筒241之 兩侧的螺孔242内；後錬> 筒模組25具有一後鏡筒 25卜一後鏡片組252及二第二螺栓柱255 ’後鏡筒251 係容置後鏡片組252,並以〆固定環253固定後鏡片組 252不脫離後鏡筒251，再以二第二螺栓柱255穿入第 φ 二導槽214及第二軌道23丨’鎖固在後鏡筒251之兩侧 的螺孔254内。在第3 β中可清楚看出，為可變光欄 模組31之光圈構件具有/可變光攔311及一馬達 312，且在可變光攔311上異有一孔洞313，在可變光 欄模組31中更具有複數_葉片（圖未示）設置於孔洞 313上，並以馬達312控剎禁片，調整孔洞313開啟閉 合的大小以控制進光量，真可清楚看出，可變光攔模 組31的可變光攔311係穿過光攔槽222，並設置於光 欄孔215内，將可變光攔槔耝31與固定鏡筒21結合 1〇 1325515 在一起。 請一併參閱第4圖及第5圖，第4圖係為本 之般狀態示意圖，帛5圖係、為本發明之作動示 ^1325515 VIII. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: IX. Description of the invention: [Technical field of the invention] The present invention relates to a zoom lens structure, in particular to the use of a bolt for fixing before and after Through the interaction between the track and the guide groove, the front and rear lens groups can be linked together by only one driving source. [Prior Art] Referring to Fig. 1, it is a conventional zoom lens structure. In the figure, the zoom lens structure comprises at least a first group lens 11 , a second group lens 12 , a fixing ring 13 , a cylindrical cam sleeve 14 , an outer sleeve 15 and a driving gear 16 , wherein The lens 11 has a positioning piece 111 and a pulley 112. The second group lens 12 has a positioning groove 121 and a pulley 112. The fixing ring 13 has a positioning plate 131 and a convex key 132. The cylindrical cam sleeve 14 has a multi-line male thread 141. The gear 142 and the curved groove 143 have an outer groove 15 having a linear groove 151, a multi-wire female thread 152 and a long hole groove 153. As can be clearly seen in the figure, the first group of lens barrels 11 are sleeved in the positioning grooves 121 of the second group of barrels 12, and the fixing ring 13 is also sleeved on the second group of mirrors by the positioning plate 131. In the positioning groove 121 of the cylinder 12, the first group lens barrel 11, the second group lens barrel 12 and the solid group 5 1325515 ring 13 are not displaced by the positioning piece 111, the positioning plate 131 and the positioning groove 121, and The first group of barrels u and the second group of barrels 12 are disposed in the cylindrical cam sleeve 14, and the pulleys 112 on the first group of barrels 11 and the pulleys 126 on the second group of barrels are disposed in the curved groove 143. Then, the cylindrical cam sleeve μ is disposed in the outer sleeve 15, and the cylindrical cam sleeve 14 has the multi-thread male thread ι41 in contact with the multi-thread female thread 152 of the outer sleeve 15, and the fixing ring 13 is The convex key 132 is also sleeved in the linear groove ι51 of the outer sleeve 15, and the cylindrical gear sleeve 14 is rotated by the driving gear 16 disposed in the long hole groove 153 of the outer sleeve 15, and the outer sleeve is rotated. More than 15 lines of female thread 152. The relationship with the multi-thread male thread 14 of the cylindrical cam sleeve 14 allows the cylindrical cam sleeve 14 to extend out of the outer sleeve 15 and extend the first group of barrels 11 and the second group of barrels 12 out of the cylindrical cam sleeve 14 , to achieve the effect of zooming. However, such a zoom lens structure provides the first group of lenses u and the group of lenses 12 to be linked in a small range, so that the effect of the zoom is greatly limited by the limit, so that the developer has to increase the effect of the zoom ^, The relative distance between the two sets of lenses is extended to provide sufficient two-way distance, but this usually requires the use of two drive sources to make the overall volume appear quite large. 1 To meet the above-mentioned need to use a driving source and to have a more coke effect. The present inventors have been engaged in the research disk (four)=test, and have been researched and designed by a multi-party for many years, and have developed a zoom structure as the aforementioned desired implementation and 6 • 1325515. [Invention] In view of the above problems, the present invention The purpose of the invention is to provide a zoom lens structure, which uses bolts to fix the front and rear lens barrels, and then interacts with the guide grooves by the obstruction and the guide grooves, so that the front and rear group lenses can be linked together by only one driving source, thereby achieving the purpose of zooming. Therefore, in order to achieve the above object, the zoom lens structure according to the present invention comprises at least a fixed lens barrel, a diaphragm member, a front lens barrel, a rear lens tube, a front lens barrel module and a rear lens group. Module. The fixed lens barrel has a front barrel end and a rear barrel end, and the front barrel end has at least one first guiding groove and one light blocking hole, the light bar hole is fixed to the aperture member, and the rear barrel end has at least one The second guiding groove, wherein the aperture member is generally a variable diaphragm module and has a variable diaphragm and a motor. The front lens barrel has a barrel body, a driven gear and a rear end ring, and the barrel body has at least one first lane, the rear end ring has at least one focusing fixing screw hole, and is driven in a bad arc shape. The gear is connected to the barrel body and the rear end ring, and the rear rail lens barrel has a second track and a fixing screw hole, and a bolt is fixed by a focusing screw hole and a fixing screw hole to lock the front tube and the rear tube. The fixed lens barrel, the front tube and the rear tube are relatively rotated, and the front lens barrel module has a front barrel, a first guiding stud and a front lens group, and the rear lens barrel module has a rear mirror The first and second guiding studs enable the front lens barrel module and the rear lens barrel module to be fixed in the lens barrel and respectively in the front rail barrel and the second guiding stud and the rear lens group The rear track moves inside the lens barrel. The purpose of the above-mentioned "focusing fixed screw hole and fixing screw hole" is to adjust the 7th to the guide studs and the front lens barrel module relative to the second guide when the rear armature lens barrel and the front track lens barrel are relatively rotated. The relative movement function of the stud and the rear lens barrel module adjusts the front lens barrel module and the rear lens barrel module to a position where the focusing is clear, and then fixes the fixing screw hole and the fixing screw hole by bolts. The design can provide the first and second guide studs of the current lens barrel module and the rear lens barrel module in an inaccurate size. The track is used to adjust the relative front lens barrel module and the rear lens barrel module. Position, to achieve the function of focusing clearly. According to the zoom lens structure of the present invention, the front lens barrel module and the rear lens barrel module are respectively disposed at the end of the barrel barrel and the end of the barrel after the fixed barrel is fixed. It is disposed at the end of the lens barrel before the fixed lens barrel, and the rear lens barrel is sleeved at the end of the lens barrel after the fixed lens barrel, and is moved by the first guiding stud on the front lens barrel to the first way and the first The second guide stud in the guide groove and on the rear lens barrel is moved in the second track and the second guide groove, and then the front track lens barrel and the rear track lens barrel are locked together by bolts. The motor drives the driven gear of the front rail lens through the gear, so that when the front rail lens barrel is rotated, the diaphragm member is fixed in the light bar hole of the fixed lens barrel, so that the fixed lens barrel is also kept in a stationary state, and is fixed by the fixing. The first guide groove of the lens barrel interacts with the first obstruction of the front track lens barrel, and the first guide stud that is received by the first track is displaced, and the front lens is driven, and the module generates displacement. Fixing the second guide groove of the lens barrel and the second track of the rear track lens barrel The relationship is driven by the second track to accommodate the displacement of the second guide stud, and the rear lens barrel module generates the reverse displacement of the front lens barrel module, and the front and rear lenses can be driven by a driving source. Group, to achieve the purpose of zooming. The level of understanding and understanding of the technical features of the present invention and the efficacy of the 1325515 is considered to be the 'supplement of the preferred embodiments and related drawings for assistance'. As after. [Embodiment] The following is a preferred embodiment of the structure of the zoom lens of the present invention. For ease of understanding, the symbolic elements in the following embodiments are denoted by the same reference numerals as in the previous embodiment. Please refer to FIG. 2 and FIG. 3 together. FIG. 2 is a schematic view showing the explosion of the zoom lens structure of the present invention. FIG. 3 is a combination diagram of the zoom lens structure and the variable diaphragm module of the present invention. In FIG. 2, the zoom lens structure comprises at least a fixed lens barrel 21, a front track lens barrel 22, a rear lens barrel 23, a front lens barrel module 24 and a rear lens barrel module 25, wherein the zoom lens structure is fixed. The lens barrel 21 has a front barrel end 211 and a rear barrel end 212, and a first guiding groove 213 is arranged on both sides of the front barrel end 211, and a light bar hole 215 is arranged on the upper side, and the length of the light bar hole is Equal to the width of the variable diaphragm 311, the variable diaphragm 311 and the diaphragm hole 215 are not displaced relative to each other. The second barrel 214 is disposed on both sides of the rear barrel end 212, and the diameter of the front barrel end 211 is The front lens barrel 22 has a barrel body 221 and a rear end ring 222 'and the barrel body 221 has two opposite first lanes 223 extending around the barrel body 221 'back end ring The 222 has two focusing fixing screw holes 226, and the barrel body 221 and the rear end ring 222 are connected by a poor arc-shaped driven gear 224 14 and form a superior arc-shaped light blocking groove 225 which is connected with the driven gear 224. 'And the diameter of the rear end ring 222 is smaller than the diameter of the barrel 221; the rear rail 9 1325515 The mirror 23 has two opposite second rails 231 extending around the rear rail • The lens barrel 23 The fixing screw hole 232 corresponding to the focusing fixing screw hole 226 is provided at the bottom, and the focusing fixing screw hole 226 and the fixing screw hole 232' are locked by the bolt 26 so that the front rail lens barrel 22 and the rear rail lens barrel 23 Simultaneously actuating 'and because the focusing fixing screw hole 226 is elongated, so that the front rail barrel 22 and the rear rail barrel 23 can be adjusted before the front rail barrel 22 and the rear rail barrel 23 are locked. The relative positions of the front lens group 243 and the rear lens group 251 are such that the front iron cylinder module 24 and the rear lens cylinder module 25 achieve the optimum focal length; the front wafer tube module 24 has a front lens barrel 241 and a The front lens group 243 has a first bolt column 245, and the front lens barrel 241 receives the front lens group 243. The front lens group 243 is fixed by a fixing ring 244 without leaving the front lens barrel 241, and then penetrates the first first bolt column 245. The first guiding groove 213 and the first rail 223' are locked in the screw holes 242 on both sides of the front barrel 241; the rear barrel> has a rear barrel 25 and a rear lens group 252 and two The second bolt column 255 'the rear lens barrel 251 is for accommodating the rear lens group 252, and is fixed by the 〆 fixing ring 253. The lens group 252 does not detach from the rear lens barrel 251, and then the second lens Column bolt 255 penetrating the first guide groove 214 and two φ second Shu rail 23 'of the locking screw holes 251 on both sides of the barrel 254. It can be clearly seen in the third β that the aperture member of the variable diaphragm module 31 has a/variable light barrier 311 and a motor 312, and a hole 313 is formed on the variable light barrier 311 in the variable light. The column module 31 further has a plurality of blades (not shown) disposed on the hole 313, and the motor 312 controls the brake plate to adjust the opening and closing of the hole 313 to control the amount of light entering. It is clear that the variable light is visible. The variable light barrier 311 of the blocking module 31 passes through the light blocking slot 222 and is disposed in the light bar hole 215, and the variable light blocking 31 is combined with the fixed lens barrel 21 by 1〇1325515. Please refer to Figure 4 and Figure 5 together. Figure 4 is a schematic diagram of the state of the present, and Figure 5 is the action of the present invention.
在第4圖中，第-導螺柱245被限制在固定鏡筒。 第導槽（明參閱第2圖）及第一軌道223内，第二裝 螺柱255被限制在固定鏡筒21之第二導槽（請參閲= 圖）及第二執道231内，而可變光攔模組31穿過 道鏡筒22之光欄槽225，及固定鏡筒22之光欄孔（技 參閱第2圖）内，並與固定鏡筒22結合在一起，當= 動時，請參閱第5圖，藉由驅動馬達（圖未示）帶動 動齒輪224，致使前轨道鏡筒22及連接之後軌道鏡$ 23 —併轉動，且因優弧形之光欄槽225，使可變光^ 模組31及結合的固定鏡筒21維持不轉動，使得第 導螺柱245受限於第一導執及第一軌道223而作〜二 後動作，且第二導螺柱255受限於第二導執及第二= 道231亦作一前後動作，再者，因第一執道223與 二軌道231呈反方向狀態，使第一導螺柱245與^〜 導螺柱255之動作呈一接近或遠離之動作，亦帶動 接第一導螺柱245之前鏡片筒模組24，與連接第二導 螺柱255之後鏡片筒模組（參閱第2圖）作動，達 焦之目的。 變 請參閱第6圖，係為本發明之前鏡片筒模級與後 鏡片筒模組相對位置之示意圖。此圖係將後鏡片筒模 組25之第二導螺柱255設定為位於設計位置61丄，、 而以調焦固定螺孔226及固定螺孔232相互配合，來 調整前鏡片筒模組24到達設計位置62。使得當前鏡片 1325515 筒模組24之第一導螺柱245之實際位置63或64偏離 設計位置62時’藉由調焦固定螺孔226及固定螺孔232 的調整，使前鏡片筒模組24之第一導螺柱245之實際 位置63或64調回至設計位置62，獲得清楚的對焦f 接續，請參閱第7圖，係為本發明之前鏡片筒模 組與後鏡片筒模組相對位置之示意圖。此圖係將前鏡 片筒模組24之第一導螺柱245設定為位於設計位置71 上，而以調焦固定螺孔226及固定螺孔232相互配合， 來調整後鏡片筒模組25到達設計位置72。使得當後鏡 片琦模組25之第二導螺柱255之實際位置73或74偏 離設計位置72時，藉由調焦固定螺孔226及固定螺孔 232的調整，使後鏡片筒模組25之第二導螺柱255之 實際位置73或74調回至設計位置72，獲得清楚的對 焦。 综上所述，藉由本發明之調焦固定螺孔226及固 定螺孔232相互配合，使後軌道鏡筒23與前軌道鏡筒 22相對轉動時，能具有調整第一導螺柱245及前鏡片 筒模組24相對於第二導螺柱255及後鏡片筒模組25 之相對移動的功能，將前鏡片筒模組24與後鏡片筒模 魬25調整到對焦清楚的相對位置後，再藉由螺栓26 固定調焦固定螺孔226及固定螺孔232。此種設計可提 供當前鏡片筒模組24與後鏡片筒模組25的第一、第 〜導螺柱245、255製造的尺寸不精準時，具有利用轨 道來調整前鏡片筒模組24與後鏡片筒模組25的相對 仅置，達到對焦清楚的功能。 12 1325515 以上所述僅為舉例性，而非為限制性者。任何未 脫離本發明之精神與範疇，而對其進行之等效修改或 變更，均應包含於後附之申請專利範圍中。 【圖式簡單說明】 第1圖係為習知之變焦鏡頭結構； 第2圖係為本發明之變焦鏡頭結構爆炸示意圖； • 第3圖係為本發明之變焦鏡頭結構與可變光欄模組 組合圖； 第4圖係為本發明之一般狀態示意圖； 第5圖係為本發明之作動示意圖； 第6圖係為本發明之前鏡片筒模組與後鏡片筒模組 相對位置之示意圖；以及 第7圖係為本發明之前鏡片筒模組與後鏡片筒模組 蠢 相對位置之示意圖。 13 132-5515In Fig. 4, the first guide stud 245 is restrained to the fixed barrel. In the first guiding slot (see FIG. 2) and the first rail 223, the second mounting stud 255 is restrained in the second guiding slot of the fixed lens barrel 21 (see = figure) and the second lane 231. The variable optical barrier module 31 passes through the light bar slot 225 of the lens barrel 22, and the light bar hole of the fixed lens barrel 22 (refer to FIG. 2), and is combined with the fixed lens barrel 22, when When referring to FIG. 5, the driving gear 224 is driven by a driving motor (not shown), so that the front rail barrel 22 and the track mirror after the connection are rotated, and because of the curved arc groove 225, The variable optical module 31 and the combined fixed lens barrel 21 are kept not rotated, so that the guiding stud 245 is restricted to the first guiding and the first rail 223 for the second and second rear actions, and the second guiding stud 255 is limited to the second guide and the second = track 231 also acts as a front and rear, and further, because the first way 223 and the two tracks 231 are in the opposite direction, the first guide stud 245 and the guide lead 245 The action of the column 255 is an action of approaching or moving away, and also drives the lens barrel module 24 before the first guiding stud 245 and the lens barrel module after connecting the second guiding stud 255 (see FIG. 2) is actuated to achieve the purpose of focus. Please refer to Fig. 6 for a schematic view of the relative position of the lens barrel mold stage and the rear lens barrel module before the present invention. In this figure, the second guiding stud 255 of the rear lens barrel module 25 is set to be at the design position 61丄, and the focusing lens fixing hole 226 and the fixing screw hole 232 are matched with each other to adjust the front lens barrel module 24 . Arrived at design location 62. When the actual position 63 or 64 of the first guide stud 245 of the barrel 13 of the current lens 1325515 is offset from the design position 62, the front lens barrel module 24 is adjusted by adjusting the fixing screw hole 226 and the fixing screw hole 232. The actual position 63 or 64 of the first guiding stud 245 is adjusted back to the design position 62 to obtain a clear focus f. Referring to FIG. 7, the relative position of the lens barrel module and the rear lens barrel module is the present invention. Schematic diagram. In this figure, the first guiding stud 245 of the front lens barrel module 24 is set to be located at the design position 71, and the focusing fixing screw hole 226 and the fixing screw hole 232 are matched with each other to adjust the rear lens barrel module 25 to arrive. Design location 72. When the actual position 73 or 74 of the second guiding stud 255 of the rear lens module 25 is offset from the design position 72, the rear lens barrel module 25 is adjusted by the adjustment of the focusing fixing screw hole 226 and the fixing screw hole 232. The actual position 73 or 74 of the second guide stud 255 is adjusted back to the design position 72 for clear focus. In summary, when the focusing fixing screw hole 226 and the fixing screw hole 232 of the present invention cooperate with each other to make the rear rail lens barrel 23 and the front rail lens barrel 22 rotate relative to each other, the first guiding stud 245 and the front can be adjusted. With respect to the relative movement of the lens barrel module 24 relative to the second guide stud 255 and the rear lens barrel module 25, the front lens barrel module 24 and the rear lens barrel mold 25 are adjusted to a relatively in-focus position, and then The focusing fixing screw hole 226 and the fixing screw hole 232 are fixed by the bolts 26. The design can provide the first lens and the second guide stud 245, 255 of the current lens barrel module 24 and the rear lens barrel module 25 to have an inaccurate size, and the track is used to adjust the front lens barrel module 24 and the rear. The relative arrangement of the lens barrel modules 25 achieves a clear focusing function. 12 1325515 The foregoing is illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a conventional zoom lens structure; Fig. 2 is a schematic exploded view of the zoom lens structure of the present invention; • Fig. 3 is a zoom lens structure and a variable diaphragm module of the present invention Figure 4 is a schematic view of the general state of the present invention; Figure 5 is a schematic diagram of the operation of the present invention; Figure 6 is a schematic view showing the relative positions of the lens barrel module and the rear lens barrel module before the present invention; Figure 7 is a schematic view showing the relative position of the lens barrel module and the rear lens barrel module before the present invention. 13 132-5515
【主要元件符號說明】 11 :第一群鏡筒； 212 111 :定位片； 213 112 .滑論， 214 12 :第二群鏡筒； 215 121 :定位槽； 22 ： 13 :固定環； 221 131 :定位板； 222 132 :凸鍵； 223 14 :圓柱凸輪套筒； 224 141 :多線陽螺紋； 225 142 :齒輪； 226 143 :曲線槽； 23 ： 15 :外套筒； 231 151 :直線凹槽； 232 152 :多線陰螺紋； 24 ： 153 :長孔槽； 241 16 :驅動齒輪； 242 21 :固定鏡筒； 243 211 :前鏡筒端； 244 :後鏡筒端； :第一導槽； :第二導槽； :光攔孔； 前軌道鏡筒； :筒身； •後端壤， :第一執道； :從動齒輪； :光欄槽； :調焦固定螺孔； 後軌道鏡筒； :第二執道； :固定螺孔； 前鏡片筒模組； :前鏡筒； :螺孔； :前鏡片組； :固定環； 1325515 245 :第一導螺柱； 312 :馬達； 25 :後鏡片筒模組； 313 :孔洞； 251 :後鏡筒； 61 ： 設計位置； 252 :後鏡片組； 62 ： 設計位置； 253 :固定環； 63 ： 實際位置； •254 :螺孔； 64 ： 實際位置； 255 :第二導螺柱； 71 ： 設計位置； 26 :螺栓； 72 ： 設計位置； 31 :可變光欄模組； 73 ： 實際位置；以及 311 :可變光欄； 74 ： 實際位置。 15[Description of main component symbols] 11: first group of barrels; 212 111: positioning piece; 213 112. slip theory, 214 12: second group of barrels; 215 121: positioning groove; 22: 13: fixing ring; : positioning plate; 222 132 : male key; 223 14 : cylindrical cam sleeve; 224 141 : multi-thread male thread; 225 142 : gear; 226 143 : curved groove; 23 : 15 : outer sleeve; 231 151 : straight groove Groove; 232 152: multi-threaded female thread; 24: 153: long hole slot; 241 16: drive gear; 242 21: fixed barrel; 243 211: front barrel end; 244: rear barrel end; Groove; : second guide groove;: light barrier hole; front track lens barrel;: barrel body; • rear end soil, : first obey;; driven gear; : light bar groove; : focusing fixed screw hole; Rear track barrel; : second obedience; : fixed screw hole; front lens barrel module;: front lens barrel;: screw hole;: front lens group;: fixing ring; 1325515 245: first guiding stud; : motor; 25: rear lens barrel module; 313: hole; 251: rear lens barrel; 61: design position; 252: rear lens group; 62: design position; : fixed ring; 63 : actual position; • 254 : screw hole; 64 : actual position; 255 : second guide stud; 71 : design position; 26 : bolt; 72 : design position; 31 : variable diaphragm module ; 73 : actual position; and 311 : variable diaphragm; 74 : actual position. 15