200907452 九、發明說明： 【發明所屬之技術領域】200907452 IX. Description of the invention: [Technical field to which the invention belongs]
本發明涉及一種變焦裝置， 變焦裝置。 【先前技術】 變焦裝置被廣泛應用於成像領域，用以調整成像 尤其於數位攝像裝置中之應用更The present invention relates to a zoom device, a zoom device. [Prior Art] The zoom device is widely used in the field of imaging to adjust imaging, especially in digital camera devices.
之生產周期長’成本高。 透鏡之物距及像距， 爲廣泛。傳、统之縐隹 【發明内容】 有鑒於此，有必要提供一種結構簡單之變焦裝 i。 … I 種變焦裝置，其包括一鏡座、一驅動裝置、至 > —第一鏡筒。所述驅動裝置設置於所述鏡座外側， 斤這第鏡Λ收谷於所述鏡座内。所述鏡座包括一固 疋板與該固定板連接之容置環，所述固定板上開設有 一通孔，用以使光線穿過。所述容置環包括—容置 =，該容置壁上開設有一開口。所述第一鏡筒爲一中 二柱體，该第一鏡筒外壁上環設置傳動齒牙，該第一 _ 乂八傳動齒牙與鏡座之開口相對正之方式螺接> 7 200907452 於所述鏡座内。所：!市4 V边·駆動裝置包括一傳動齒輪，所述 .驅動裝置之傳動齒輪經由鏡座之容置環上之開口與 •所述第：鏡筒之傳動齒牙相嚙合。 相車乂 $ ^技術’本發明變焦裝置采用於鏡筒之外 壁上^置傳動ir牙并配合設置於該鏡筒之螺紋來實 見透鏡之》周焦，其結構簡單，組裝容易，可有效降低 變焦裝置之成本。 【實施方式】 明參閱圖1及圖2，本發明變焦裝置之較佳實施 例，5亥變焦裝置100包括-鏡座110、安裝於該鏡座 ^10側之驅動裝置12〇、設於鏡座no内之第一鏡 同1=’以及容置於所述第一鏡筒130内之透鏡150。 — π參閱圖3'圖4及圖5’所述鏡座1K)包括一 疋板112及與邊固定板連接成一體之容置環 U3。所述固定板112之中部開設有一通孔114，可 使透過鏡碩之影像清晰投射於圖像感測器（圖未示） ^ °玄固定板112上還設置有多個定位孔115用以將 肩鏡座110與使用該變焦裝置1〇〇之外部裝置定位配 合。所述容置環113爲一沿固定板112之通孔114 之内壁向所述固定才反112 < 一側延伸出之—圓形腔 體’其包括一容置壁116，沿該容置壁116内側環設 有一與所述容置環113 一體之襯套n〇1，該襯套 沿所述容置環113之軸向延伸一定長度，且該襯套 1101之兩端部分別與所述容置環113之兩端部之間 8 200907452 間隔一定距離。所述谷置環1 1 3内之概套1 1 〇 1之_中 部環設有一内環肩I103,該内環肩1103上設置有第 一螺紋部117，該第一螺紋部117用以螺接第一鏡筒 13 0。於所述容置環113内第一螺紋部^ j 7鄰近固定 板112 —侧之容置壁116上有一貫穿所述容置壁n6 之開口 118 ’該開口 118爲外部驅動裝置ι2〇與設置 於該鏡座110内之鏡筒相互配合提供通道。 請一并參閱圖1，所述驅動裝置12〇爲一由電動 馬達122及一組减速齒輪組124組成之動力源，該驅 動裝置120之末端設置有一傳動齒輪ι26，用以將該 驅動裝置120之驅動力傳至所述被驅動之鏡筒上。 所述第一鏡筒130爲一中空筒狀物，該第一鏡筒 13〇之一端之外壁上設置有轉動螺紋132。第一鏡筒 130上緊鄰該轉動螺紋132之下侧之外壁上凸設一外 環肩133’該外環肩1S3用以與鏡座11〇之襯套ιι〇ι 相配合從而保證該第一鏡筒13〇與該鏡座11〇之容置 環113之同心度。於第一鏡筒13〇中部鄰近該外環肩 133之外壁上環設有傳動齒牙134，所述傳動齒牙 用=與外部驅動裝置12〇之傳動齒輪126相配合構成 "亥’交焦I置之傳動鏈。所述傳動齒牙234及所述轉動 累、、文13 2刀別位於该外環肩13 3之兩側。第一鏡筒 130内可根據不同之需求設置鏡片150,所述鏡片15〇 可以通過粘接之方式收容於所述第一鏡筒内。爲 保4 5亥第一鏡筒130之傳動齒牙134於使用時不與驅 9 200907452 動裝置120之傳動齒輪126脫離，優選地，該傳動齒 牙134沿該第一鏡筒130軸向之長度大於形成於該第 一鏡筒i3〇端部之轉動螺紋132沿該第一鏡筒工⑽ 軸向所占據之長度。這樣當轉動螺紋132脫離與其配 合之鏡座11〇上之第一螺紋部117時，所述傳動齒牙 134仍然保持與驅動裝置12〇之傳動齒輪126相嚙 合’以便驅動裝置12〇可順利之反向驅動使所述第— 鏡筒130收回。 爲增加該調焦裝置100之成像範圍，該調焦裝置 還可包括一設置於所述鏡座11〇 一端之第二鏡筒 140。該第二鏡筒14〇爲一中空筒狀物，該鏡筒 之包括一階梯形段142及一配合段143。所述階梯形 段142是構成所述部分鏡第二筒14〇之一系列不同内 ，且沿該第二鏡筒14〇軸向延伸一定距離之同心圓 壞所構成，該階梯段可根據不同之需求用以容置鏡片 150 ’其中所述鏡片15Q之邊緣部分由所述階梯形段 142所形成之階梯面支撑於所述第二鏡筒丄仆内。所 述配合段143形成於所述第二鏡筒14〇之階梯段142 之下方，并與所述階梯形段142相鄰接。於第二鏡筒 140鄰近階梯形段142之配合段143上環設有一凸緣 144,於形成有凸緣144之配合端143上緊鄰該凸緣 144逛設置有一配合螺紋145。對應該配合螺紋145 於所述鏡座110之容置環112之開口端内壁上設置第 二螺紋部119,用以將該第二鏡筒14〇與鏡座11〇相 10 200907452 配合。 所述透鏡150爲光學透鏡，可以為球面透鏡，# 球面透鏡或者遽光片等用以成像之透光组件。 組裝時，請複參閱圖i及圖5， 鏡150分別設置於所述第-肝所迷逍 、弟—鏡同14〇及第一鏡筒130 内相應之位置處。接著，將所述第-鏡筒U0由所述 鏡座110固定板112之通孔m處置入所述鏡座110 之^環113内’并將所述第—鏡筒m端部外壁上 之轉動螺紋132與鏡座11G容置環113内之第—螺纹 部m相螺接，并將所述第一鏡筒13〇 齒牙 134對正於所述鏡物之容置壁116上開口 118, 以1 更驅動以120之傳動齒輪m可由所述開口 118 =第-：筒130之傳動齒牙134相嚙合。此時，所述 第一鏡同130之外環肩133與鏡座110之容置環113 内·^襯陳套1101相互緊密接觸，從而可保證該第一 鏡问130與該鏡做110之容置環113之同心度。隨 後’將所述第二鏡筒14〇通過其配合段143上之配合 螺、、、文145與所述鏡座11〇之容置壁ιι6端部之第二螺 、文邛U9相螺接，所述第二鏡筒140之凸緣144抵觸 於所述鏡座11〇之容置環113上形成有第二螺紋部 之開口端，從而保持所述第二鏡筒14〇與所述鏡 ^上10之相對位置。其中，所述第一鏡筒13〇與第二 鐃，140之間間隔—定距離，該距離之大小可以根據 X文焦凌置之不同而選擇不同之尺寸。最後將所述驅 11 200907452 動裝置120設置於所述鏡座11〇底部形成有開口 相鄰近之位置處，所述驅動裝置12〇之 穿過所述開口 118與收容於所述鏡座11〇内：二6 间130之傳動齒牙134相互嚙合。 使用時，所述驅動裝置120之馬達122啓動，并 帶動該驅動裝置内部之减速齒輪組124運動，經 齒輪組124變速後’由該驅動裝置12〇末端之=動齒 輪12^驅動與其相嚙合之傳動齒牙134轉動從而帶動 所述第-鏡同130沿順時針方向轉動。因爲所述第一 鏡筒130端部外壁上之轉動螺紋132與鏡座ιι〇容置 環113内之第一螺紋部117相螺接’當鏡座HO靜止 時，所述第一鏡筒130將沿所述所第一螺紋部ιΐ7 亡升，當所述第一鏡筒130上升到一定位置後，所述 弟一鏡筒130之外環肩133抵持於鏡座ιι〇之容置環 113内之内環肩1103上，此時該第一鏡筒停止 運動田5亥第一鏡筒130需要收回時，即可使驅動裝 置120反向旋轉帶動第一鏡筒13〇逆時針旋轉則可實 現將所述第-鏡筒13G之收回。此時，收容於所述第 鏡筒130内之透鏡15〇將隨該第一鏡筒13〇做相應 之移動，從而達到調焦之目的。 該變焦裝置1〇〇采用於第—鏡筒13〇之外壁上設 置傳動齒牙134配合設置於該第一鏡筒13〇上之螺紋 來實現透鏡之調焦，其結構簡單，組裝容易，可有效 降低變焦裝置之成本。 12 200907452 if所述’本發明符合發明專利要件，爰依法提 利明。惟，以上所述者僅為本發明之較佳實施 >弋本毛明之範圍並不以上述實施方式為限，舉凡 熟習本案技藝之人士援依本發明之精神所作之等效 修飾或變化’皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明變焦裝置較佳實施例之立體示意 圖； 圖2係圖1中變焦裝置之分解示意圖； 圖3係圖2中變焦裝置之部分部件分解示意圖； 圖4係圖3中變焦裝置之部分部件剖示圖； 圖5係圖4中變焦裝置之部分部件組裝後之剖示 圖。 【主要元件符號說明】 (本發明) 變焦裝置 100 固定板 112 通孔 114 容置壁 116 開口 118 襯套 1101 驅動裝置 120 傳動齒輪 126 轉動螺紋 132 鏡座 110 容置環 113 定位孔 115 螺紋部 117 第二螺紋部 119 内環肩 1103 减速齒輪組 124 第一鏡筒 130 外環肩 133 13 200907452 傳動齒牙 階梯形段 凸緣 透鏡 134 第二鏡筒 140 142 配合段 143 144 配合螺紋 145 150 14The production cycle is long and the cost is high. The object distance and image distance of the lens are wide.传,统之绉隹 [Summary of the Invention] In view of this, it is necessary to provide a zoom device i with a simple structure. ... I zoom device comprising a mirror mount, a drive device, to > a first lens barrel. The driving device is disposed outside the lens holder, and the first mirror is received in the lens holder. The lens holder includes a receiving ring connected to the fixing plate, and the fixing plate defines a through hole for allowing light to pass through. The accommodating ring includes a receiving area, and an opening is formed in the accommodating wall. The first lens barrel is a middle and two cylinders, and the upper lens of the first lens barrel is provided with a driving tooth, and the first _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Inside the mirror holder. The city's 4 V side swaying device includes a transmission gear, and the transmission gear of the driving device meshes with the driving teeth of the first: barrel through the opening on the accommodating ring of the mirror base. The utility model of the present invention is characterized in that the zoom device of the present invention is used on the outer wall of the lens barrel to dispose the ir teeth and cooperate with the thread disposed on the lens barrel to realize the "circumference" of the lens. The structure is simple, the assembly is easy, and the utility model can effectively Reduce the cost of the zoom unit. 1 and 2, in a preferred embodiment of the zoom device of the present invention, the zoom device 100 includes a mirror base 110, a driving device 12 mounted on the side of the lens mount 10, and a mirror. The first mirror in the seat no is the same as 1=' and the lens 150 housed in the first barrel 130. - π Referring to Fig. 3' Fig. 4 and Fig. 5', the lens holder 1K) includes a cymbal plate 112 and a receiving ring U3 integrally connected to the side fixing plate. A through hole 114 is defined in the middle of the fixing plate 112, so that the image of the mirror is clearly projected on the image sensor (not shown). The positioning plate 112 is further provided with a plurality of positioning holes 115. The shoulder mount 110 is positionally engaged with an external device using the zoom device 1〇〇. The receiving ring 113 is a circular cavity that extends along the inner wall of the through hole 114 of the fixing plate 112 toward the fixing surface 112. The circular cavity includes a receiving wall 116 along the receiving space. A bushing n〇1 integral with the accommodating ring 113 is disposed on the inner side of the wall 116. The bushing extends a certain length along the axial direction of the accommodating ring 113, and the two ends of the bushing 1101 are respectively Between the two ends of the reading ring 113, 8 200907452 is separated by a certain distance. The middle ring of the set ring 1 1 3 in the valley ring 1 1 3 is provided with an inner ring shoulder I103, and the inner ring shoulder 1103 is provided with a first threaded portion 117, and the first threaded portion 117 is used for the screw The first barrel 13 0 is connected. An opening 118 through the receiving wall n6 is disposed in the receiving wall 116 of the first threaded portion 113 adjacent to the fixing plate 112. The opening 118 is an external driving device and is disposed. The lens barrels in the lens holder 110 cooperate to provide a passage. Referring to FIG. 1 , the driving device 12 is a power source composed of an electric motor 122 and a set of reduction gear sets 124 . The driving device 120 is provided with a transmission gear ι 26 at the end thereof for the driving device 120 . The driving force is transmitted to the driven lens barrel. The first barrel 130 is a hollow cylinder, and the outer wall of one end of the first barrel 13 is provided with a rotating thread 132. An outer ring shoulder 133' is protruded from the outer wall of the first lens barrel 130 adjacent to the lower side of the rotating thread 132. The outer ring shoulder 1S3 is matched with the sleeve ιι〇 of the lens holder 11 to ensure the first The concentricity of the lens barrel 13〇 and the accommodation ring 113 of the lens holder 11〇. A driving tooth 134 is disposed on the outer wall of the first lens barrel 13 邻近 adjacent to the outer ring shoulder 133, and the driving tooth is matched with the driving gear 126 of the external driving device 12 to form a "Hai" I set the drive chain. The driving teeth 234 and the rotating teeth are located on both sides of the outer ring shoulder 13 3 . The lens 150 can be disposed in the first lens barrel 130 according to different requirements, and the lens 15 can be received in the first lens barrel by bonding. In order to ensure that the driving teeth 134 of the first lens barrel 130 are not disengaged from the driving gear 126 of the driving device 200907452, the driving teeth 134 are axially along the first lens barrel 130. The length is greater than the length of the rotating thread 132 formed at the end of the first barrel i3 in the axial direction of the first barrel (10). Thus, when the rotating thread 132 is disengaged from the first threaded portion 117 of the mirror base 11 that is engaged therewith, the drive tooth 134 remains engaged with the drive gear 126 of the drive unit 12' so that the drive unit 12 can be smoothly operated. The reverse drive retracts the first barrel 130. In order to increase the imaging range of the focusing device 100, the focusing device may further include a second barrel 140 disposed at one end of the lens holder 11'. The second barrel 14 is a hollow cylinder, and the barrel includes a stepped section 142 and a mating section 143. The stepped section 142 is formed by a series of different parts of the partial mirror second cylinder 14 , and extending along a certain distance of the second barrel 14 〇 axially, and the step section can be different according to different It is required to accommodate the lens 150' in which the edge portion of the lens 15Q is supported by the step surface formed by the stepped portion 142 in the second lens barrel. The mating segment 143 is formed below the stepped section 142 of the second barrel 14 and is adjacent to the stepped section 142. A flange 144 is formed on the mating section 143 of the second barrel 140 adjacent to the stepped section 142. A mating thread 145 is disposed adjacent to the flange 144 on the mating end 143 of the flange 144. A second threaded portion 119 is disposed on the inner wall of the open end of the accommodating ring 112 of the lens holder 110 in cooperation with the thread 145 for engaging the second lens barrel 14 with the mirror base 〇 phase 10 200907452. The lens 150 is an optical lens, and may be a spherical lens, a spherical lens or a light-emitting sheet or the like for imaging. When assembling, please refer to FIG. 1 and FIG. 5, respectively, and the mirrors 150 are respectively disposed at corresponding positions in the first liver, the second mirror, and the first lens barrel 130. Next, the first barrel U0 is disposed into the ring 113 of the lens holder 110 by the through hole m of the fixing plate 112 of the lens holder 110, and the outer wall of the end of the first barrel m is The rotating thread 132 is screwed with the first thread portion m in the lens holder 11G, and the first lens barrel 13 is aligned with the opening 118 of the receiving wall 116 of the mirror. The drive gear m, which is driven by 1 and is 120, can be engaged by the drive tooth 134 of the opening 118 = the -: barrel 130. At this time, the first mirror 130 and the outer ring shoulder 133 are in close contact with the inner sleeve 1101 of the lens holder 110, so that the first mirror 130 and the mirror 110 can be ensured. The concentricity of the ring 113 is accommodated. Then, the second lens barrel 14 is screwed through the matching screw on the engaging portion 143, and the text 145 is screwed to the second screw of the end of the receiving wall ι6 of the lens holder 11 The flange 144 of the second barrel 140 is in contact with the open end of the second ring portion formed on the receiving ring 113 of the lens holder 11 ,, thereby holding the second barrel 14 and the mirror ^ The relative position of the top 10. Wherein, the first lens barrel 13 is spaced apart from the second side, 140 by a distance, and the size of the distance may be different according to the difference of the X-shaped focal length. Finally, the drive 11 200907452 moving device 120 is disposed at a position where the bottom of the lens holder 11 is formed adjacent to the opening, and the driving device 12 passes through the opening 118 and is received in the lens holder 11 Inside: Two 6 130 drive teeth 134 mesh with each other. In use, the motor 122 of the driving device 120 is activated, and drives the reduction gear set 124 inside the driving device to move. After the gear unit 124 is shifted, the driving device 12 is driven by the rotating gear 12^. The driving teeth 134 rotate to drive the first mirror 130 to rotate in a clockwise direction. Because the rotating thread 132 on the outer wall of the end portion of the first barrel 130 is screwed with the first threaded portion 117 in the lens holder accommodating ring 113. When the mirror holder HO is stationary, the first barrel 130 Will fall along the first threaded portion ι7, and when the first lens barrel 130 rises to a certain position, the outer ring shoulder 133 of the first lens barrel 130 abuts against the receiving ring of the lens holder ιι〇 In the inner ring shoulder 1103 of 113, when the first lens barrel stops moving, the first lens barrel 130 needs to be retracted, so that the driving device 120 can rotate in the reverse direction to drive the first lens barrel 13 to rotate counterclockwise. Retraction of the first barrel 13G can be achieved. At this time, the lens 15〇 accommodated in the first barrel 130 will move correspondingly with the first barrel 13 to achieve the purpose of focusing. The zoom device 1 is configured to provide a focusing tooth on the outer wall of the first lens barrel 13 and a thread disposed on the first lens barrel 13 to realize focusing of the lens. The structure is simple and the assembly is easy. Effectively reduce the cost of the zoom device. 12 200907452 if the invention is in accordance with the requirements of the invention patent, and is legally prescribed. However, the above description is only a preferred embodiment of the present invention. The scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. All should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a preferred embodiment of a zoom device of the present invention; FIG. 2 is an exploded perspective view of the zoom device of FIG. 1; FIG. 3 is a partial exploded view of the zoom device of FIG. Figure 3 is a cross-sectional view showing a part of the zoom device of Figure 3; Figure 5 is a cross-sectional view showing a part of the zoom device of Figure 4 assembled. [Main component symbol description] (Invention) Zoom device 100 Fixing plate 112 Through hole 114 accommodating wall 116 Opening 118 Bushing 1101 Driving device 120 Transmission gear 126 Rotating screw 132 Mirror mount 110 accommodating ring 113 Positioning hole 115 Threaded portion 117 Second threaded portion 119 inner ring shoulder 1103 reduction gear set 124 first barrel 130 outer ring shoulder 133 13 200907452 transmission tooth stepped segment flange lens 134 second barrel 140 142 mating section 143 144 mating thread 145 150 14