M281182 八、新型說明： 【新型所屬之技術領域】 * 本創作係關於一種光學變焦鏡頭，尤其係關於一種行動電話用數位相機之 光學變焦鏡頭。 【先前技術】 隨著多媒體技術之發展，數位相機、攝影機越來越爲廣大消費者青睞，人 們對數位相機、攝影機追求小型化之同時，人們希望於同一位置可拍攝遠近距 離不同之物體，且獲得的影像畫面清晰，由此數位相機之變焦功能應運而生， 而相機之光學變焦係藉由相機内之鏡頭變焦實現。 ® 一般而言，數位相機鏡頭之變焦方式分爲數位變焦與光學變焦兩種。數位 變焦係利用影像感測器之電荷耗合器（Charge Coupled Device，下稱CCD)局部 成像，即於原來拍攝之照片中選取一塊放大，數位相機雖可藉由插值等方式於 一定程度上改善成像質量，但數位變焦係以犧牲解析度及圖像質量爲代價之變 焦。數位相機之光學變焦係依靠光學鏡頭結構實現變焦，即藉由改變變焦鏡頭 之各鏡片之相對位置，從而改變鏡頭之焦距使被拍攝之景物放大或縮小，光學 變焦倍數越大，其拍攝較遠景物就越清晰。由此，人們通常藉由光學變焦實現 相機鏡頭之變焦。 一種習知用於數位相機之光學變焦鏡頭，係藉由鏡筒組於光軸直線上作相 對運動實現光學變焦，如公告於1994年6月11日之臺灣專利第225008號所揭 鲁示，請參考第一圖，其揭示了一數位相機之變焦鏡頭，其包括一外套筒1〇、一 圓柱凸輪套筒12、一固定環13及一鏡筒組14，該外套筒1〇内設有若干條直線 凹槽101，可供該固定環13上所設之凸鍵131卡合於内，使固定環13浮鎖於圓 柱凸輪套筒12外，鏡筒組14包括有第一鏡筒142及第二鏡筒144，固定環13 上設置有定位片132卡合於第二鏡筒144上之定位槽145，以限制第二鏡頭旋 轉，第一鏡筒142上之定位片143亦卡合於定位槽145内，受第二鏡筒144之 限制而不能旋轉，第一鏡筒142與第二鏡筒144外設有滾輪15，可藉由外套筒 10—側開設之長孔槽102與圓柱凸輪套筒12外壁底部之齒輪121作用使圓柱二 輪套筒12於光軸直線上作線性移動，進而使得鏡筒組14於光軸直線上作相 運動，實現變焦功能。 ^ …該光學變焦鏡頭藉由鏡筒之移動帶動鏡頭之鏡片移動，雖能實現相機之 學變焦，然該光學變焦鏡頭體積偏大，將該光學變焦鏡頭安裝於行動電話等捭 M281182 π式電子衣置之機身内部時，其一般沿攜帶式 則此時光學變焦之距離受限於行動電話之 衣践身之厚度方向安裝， 光學變焦。 卞又二1日1，以致於不能實現高倍率之 【新型内容】 鑑於上述狀況，有必要提供一種體積較小、 率光學變焦之光學變焦鏡頭模組。 又機身厗度限制而實現高倍 一種光學變焦鏡頭模组，該光學變隹 筒，該第一鏡筒内設有一第一透鏡組，兮、'、、且匕括一第一鏡筒及一第二鏡 透鏡組可沿第-光轴方向移動；該第二^ 有—第—光軸’該第- 組’該反射鏡具有-反射面，該第二透鏡組具及透鏡 沿第二光軸方向移動；其中該第一鏡筒結合於第二二透鏡組可 於第二鏡筒内’與第-鏡筒相對摩，使得 间側’献射鏡安裝 射後沿第二光轴傳輸。使于/σ 5亥弟一光軸傳輸之光線經反射面反 相較習知技術，本創作之光學變焦鏡頭模組由 一鏡筒進入，經過第一透鏡纟且後之弁蠄应* & 了反射鏡將由弟 隹镑藏/之规反射了—疋角度，將綠反射至光學變 焦亦不受限於攜帶式電子裝置之厚度。 电丁忒罝/、文 【實施方式】 ”二圖=示’本創作較佳實施例之光學變焦鏡頭模組包括一第一鏡 二^一 w 一兄同一2。第一鏡筒2〇内設有一第一透鏡、组200(圖中僅示其一）， ，第j鏡組200具有-第一光轴搬。第二鏡筒22内設有一反射鏡22〇、一 弟-透鏡組222(圖中僅不其-)及—第三透鏡組创(圖中僅示其—），該第二鏡筒 22之側壁上設有-開孔(圖未標)，該反射鏡DO具有一反射面228，該反射鏡— 可為-稜鏡，亦可為-平面鏡，該第二透鏡組222與第三透鏡組224具有一重 合之第二光轴229，該第二透鏡M 222與第三透鏡組故可沿第二光袖挪方向 移動。其中該第-鏡筒20安裝於第二鏡筒22之開孔上，該反射鏡22〇呈一定 角度的安裝於該第二鏡筒22内，使得沿該第一光軸2〇2傳輸之光線經反射面228 反射後沿第二光軸229傳輸。 第透統組2⑻、第一透鏡組222及第三透鏡組224分別設於可移動之鏡片 座20卜221及223上，而該鏡片座2〇卜223及225係分別藉由三步進馬達2〇3、 225及227之驅動進行移動。 M281182 (CMOS)，^德，〆則^ 4〇係電荷轉合器(CCD) 5戈互補金屬氧化物半導體 象感測态40可將外部拍攝物之光信號轉化為電信號。 ㈣鏡頭模朗於成像卜界拍攝物之光線從第-賴Μ沿第- 红夕ίί光^ 方向依次穿過第二透鏡組222、第三透鏡組224及 紅外f 土片30」最後成像於影像感測器4〇上。 201、Ϊ=2^^^Γ夺，藉由步進馬達203、225及M281182 8. Description of the new type: [Technical field to which the new type belongs] * This creation is about an optical zoom lens, especially an optical zoom lens for a digital camera for mobile phones. [Previous technology] With the development of multimedia technology, digital cameras and video cameras are becoming more and more popular with consumers. While people are pursuing miniaturization of digital cameras and video cameras, people hope to shoot different objects at different distances at the same location, and The obtained image is clear, so the zoom function of the digital camera came into being, and the optical zoom of the camera was realized by the lens zoom in the camera. ® Generally speaking, the zoom method of digital camera lens is divided into digital zoom and optical zoom. The digital zoom uses the Charge Coupled Device (CCD) of the image sensor to perform partial imaging, that is, select one of the original photos to zoom in. Although the digital camera can be improved to some extent by interpolation, etc. Image quality, but digital zoom is the zoom at the expense of resolution and image quality. The digital camera's optical zoom relies on the optical lens structure to achieve zooming, that is, by changing the relative position of the lenses of the zoom lens, thereby changing the focal length of the lens to zoom in or out of the scene being photographed, the larger the optical zoom factor, the greater the distance. The clearer the thing becomes. Therefore, people usually use the optical zoom to achieve the zoom of the camera lens. An optical zoom lens conventionally used in digital cameras is realized by relative movement of a lens barrel group on a straight line of an optical axis to achieve optical zoom, as disclosed in Taiwan Patent No. 225008 published on June 11, 1994. Please refer to the first figure, which discloses a zoom lens of a digital camera, which includes an outer sleeve 10, a cylindrical cam sleeve 12, a fixing ring 13, and a lens barrel group 14. The outer sleeve 10 A plurality of linear grooves 101 are provided for the convex keys 131 provided on the fixing ring 13 to be engaged therein, so that the fixing ring 13 is floatingly locked outside the cylindrical cam sleeve 12, and the lens barrel group 14 includes a first mirror The barrel 142 and the second lens barrel 144. The fixing ring 13 is provided with a positioning piece 132 engaged with a positioning groove 145 on the second lens barrel 144 to restrict the rotation of the second lens. The positioning piece 143 on the first lens barrel 142 is also It is engaged in the positioning groove 145 and cannot be rotated due to the restriction of the second lens barrel 144. The first lens barrel 142 and the second lens barrel 144 are provided with a roller 15 outside, and a long hole can be opened on the side of the outer sleeve 10 The groove 102 interacts with the gear 121 at the bottom of the outer wall of the cylindrical cam sleeve 12 to make the cylindrical two-wheel sleeve 12 move linearly on the straight line of the optical axis. Therefore, the lens barrel group 14 is caused to perform phase movement on a straight line of the optical axis to implement a zoom function. ^… The optical zoom lens moves the lens of the lens by the movement of the lens barrel. Although the camera can achieve the academic zoom, the volume of the optical zoom lens is too large. The optical zoom lens is installed in mobile phones and other 捭 M281182 π-type electronics When the clothing is placed inside the body, it is generally installed along a portable type, and the distance of the optical zoom at this time is limited by the thickness of the mobile phone, and the optical zoom is installed.卞 On the 1st and the 21st, it is impossible to achieve a high magnification [New Content] In view of the above situation, it is necessary to provide an optical zoom lens module with a small volume and a high optical zoom. An optical zoom lens module is realized by limiting the body height. The optical zoom tube includes a first lens group in the first lens barrel, including a first lens barrel and a The second mirror lens group can be moved in the direction of the first optical axis; the second mirror lens has a reflecting surface, and the second lens group and the lens are along the second light axis. The first lens barrel is combined with the second and second lens groups and can be rubbed against the first lens barrel in the second lens barrel, so that the intermediate lens can be transmitted along the second optical axis after being installed. The light transmitted on the optical axis of / σ 5 Hai Di through the reflecting surface is relatively inverse technology. The optical zoom lens module created by this creation enters through a lens barrel, passes through the first lens, and the subsequent ones should be & The mirror will be reflected by the 隹 藏 藏 之 / 疋-疋 angle, the reflection of green to optical zoom is not limited to the thickness of portable electronic devices. Ding Ding /, [Embodiment] "Two Figures = Shows" The optical zoom lens module of the preferred embodiment of this creation includes a first lens 2 ^ 1 w one brother the same 2. Within the first lens barrel 20 A first lens and group 200 (only one of which is shown in the figure) are provided. The j-th lens group 200 has a first optical axis. A second mirror 22 and a second lens group 222 are provided in the second lens barrel 22. (Not shown in the figure only) and-a third lens group is created (only shown in the figure-), a side wall of the second lens barrel 22 is provided with an -opening (not shown in the figure), the mirror DO has a Reflecting surface 228, the reflecting mirror may be-稜鏡, or-plane mirror, the second lens group 222 and the third lens group 224 have a second optical axis 229 coincident, and the second lens M 222 and the first lens The three lens groups can thus be moved in the direction of the second optical sleeve. The first lens barrel 20 is mounted on the opening of the second lens barrel 22, and the reflecting mirror 22 is mounted on the second lens barrel 22 at an angle. Inside, so that the light transmitted along the first optical axis 202 is reflected by the reflecting surface 228 and transmitted along the second optical axis 229. The second transmission group 2⑻, the first lens group 222, and the third lens group 224 are respectively provided at The lens holders 20, 221, and 223 are moved, and the lens holders 20, 223, and 225 are moved by three stepping motors 203, 225, and 227, respectively. M281182 (CMOS), ^ 德, 〆 Then ^ 40 series charge coupler (CCD) 5 Ge complementary metal oxide semiconductor image sensing state 40 can convert the optical signal of the external subject into an electrical signal. The first-laiM passes through the second lens group 222, the third lens group 224, and the infrared f soil piece 30 "in the direction of the first-hongxi light, and is finally imaged on the image sensor 40. 201, Ϊ = 2 ^^^ Γ win, by stepping motors 203, 225 and
之相#位仔第一透鏡組、第二透鏡組222及第三透鏡組224之間 實現光學變』、:、'生改變，可將遠方或近處物體成像於影像感測器4°上，從而 入，之2變焦鏡頭模組由於採用了一反射鏡220，將由第一鏡筒20進 鏡頭度’絲狀射至沿光學變焦 早其厚度方向之限制，將該光學變焦模組裝於行動電話等攜帶式電 子哀置内°卩扦，其變焦亦不受限於攜帶式電子裝置之厚度。 、十、去ϊΐ:述’本創作符合新型專利要件，爰依法提“利帽。•，以上所 佳實關，舉職悉本案祕之人士，紐依本案創作精 神所作之#錄飾錢化，皆應包含独τ之申請專概_。 【圖式簡單說明】 =一圖係習知之光學變焦鏡頭之結構示意圖； 第二圖係本創作較佳實施例之結構示意圖。 【主要元件符號說明】 221 223 20第一透鏡組 200 202第二鏡筒 22 220第二透鏡組 222 223第三透鏡組 224 225反射面 228 229紅外濾光片 30 201 203 第一鏡筒 第一光軸 反射鏡 鏡片座 步進馬達 第二光軸 影像感測器 40Phase #Position to achieve optical change between the first lens group, the second lens group 222 and the third lens group 224 ",:, and" Life changes, can image distant or near objects on the image sensor 4 ° As a result, the 2nd zoom lens module uses a reflector 220 to shoot the lens from the first lens barrel 20 into the filament shape to the limit along the thickness direction of the optical zoom. The optical zoom module is assembled in Portable electronic devices, such as mobile phones, are not allowed to zoom in, and the zoom is not limited to the thickness of portable electronic devices. Ten, go to the description: "This creation meets the requirements of new patents, and according to the law," little hat. ", The above is a good practice, and those who know the secrets of this case, Neway's creative spirit made # 录 饰 钱 化, Should include the application profile of the independent τ. [Simplified illustration of the diagram] = a diagram is a schematic diagram of the structure of a conventional optical zoom lens; the second diagram is a diagram of the structure of the preferred embodiment of the creation. ] 221 223 20 First lens group 200 202 Second lens barrel 22 220 Second lens group 222 223 Third lens group 224 225 Reflection surface 228 229 Infrared filter 30 201 203 First lens barrel first optical axis mirror lens Block stepper motor second optical axis image sensor 40