200848779 九、發明說明： 【發明所屬之技術領域】200848779 IX. Description of the invention: [Technical field to which the invention belongs]
4本發明涉及一種鏡頭模組，尤其涉及一種具溫度補 機構之鏡頭模組及使用該鏡頭模組之相機模組。不 【先前技術】 隧著攝像技術之發展，相機模組於各種用途之攝像壯 置中得到廣泛之應用，相機模組與各種便攜式f子裝= 手機、攝像機、電腦等之結合，更是得到衆多消費者之青 而對於使用時溫度變化範圍較大之鏡頭模組，例如， 用鏡頭核組’由於汽車使用之溫度範圍相當之大 =之鏡碩自然也需要於相同之溫度範圍中可以卫作。但 ，之鏡頭普遍對溫度敏感，當溫度升高時，由於模_之 ::部品都受熱膨脹，體積有所變化，而鏡片之折射率也 =二酿度變化。故鏡頭到最佳成像面之距離會相對變化， Ϊ俜像良好’而高溫時成像品質不佳。這種情況通 吊係^用自動對焦之方式做補償。 A =而自動對焦機構往往佔用較大之空間，致使具有 雜對焦機構之鏡頭模組及相機模組體積較大且結構複 热法滿足輕薄短小之需求，並且，其成本也較大。 【發明内容】 有審·於此，有 必要提供一種體積小，成本低之具有溫 200848779 度補償機構之鏡頭模組，以及使用該鏡 t發明提供-種鏡頭模組，包括-個鏡座：:」 及至v-個補償片。該鏡座具有—個 π 兮於铃 ' 1合直腔用於容詈 :::二 内具有至少一個鏡片，該補償片連接於鏡The present invention relates to a lens module, and more particularly to a lens module having a temperature compensation mechanism and a camera module using the lens module. No [Prior Art] With the development of tunneling technology, camera modules have been widely used in various applications, and the combination of camera modules and various portable devices: mobile phones, video cameras, computers, etc. A lens module with a large range of temperature changes during use, for example, with a lens core group. Because the temperature range of the car is quite large, the mirrors naturally need to be in the same temperature range. Work. However, the lens is generally sensitive to temperature. When the temperature rises, the volume of the mold is changed due to the thermal expansion of the mold, and the refractive index of the lens is also the change of the second degree. Therefore, the distance from the lens to the optimal imaging surface will change relatively, and the image will be good, and the image quality will be poor at high temperatures. In this case, the system is compensated by means of autofocus. A = The autofocus mechanism often takes up a large space, so that the lens module and the camera module with the misfocus mechanism are large in size and the structural reheating method satisfies the requirements of lightness and thinness, and the cost thereof is also large. SUMMARY OF THE INVENTION In view of this, it is necessary to provide a lens module with a small, low-cost compensation mechanism with a temperature of 200848779 degrees, and a lens module provided by the invention, including a lens holder: :" and to v-compensation film. The lens holder has a π 兮 铃 ' ' 1 straight cavity for accommodating ::: 2 has at least one lens, the compensation piece is connected to the mirror
同與鏡座之間，該補償片可由於溫度 妾J w»: 成像面保持於預定平面。 鏡广了—種相機模組，包括-個鏡座、-個 兄Π έ衫像感測器及至少-個補償片。該鏡座且 Γ:=Γ容置該鏡筒，該鏡筒内具有至少=鏡 ί變=:::ΪΓ，義座之間，該補償片可由於溫 :匕而3曲亚一鏡筒沿光軸方向移動，使鏡頭模組之 成像面保持於影像感測器所在之平面上。 J鏡頭模組和相機模組具有至少一個補償片产 埦恤度變化，使得該補償片彎曲，從而 铲= 方向移動，進而達到對鏡頭模二= 又貝之目的。该鏡頭模組和相機模組避免了揉 自動對焦等機構，從而筒/卜敕_ 低成本。稱攸而間化整體結構，減小整體體積及降 【實施方式】 I面將結合附圖，對本發明作進一步之詳細說明。 明參閱圖1 ’爲本發明實施例提供之相機模組⑽，立 匕=個鏡座10、—個鏡筒20、至少—個補償片40及— 固影像感測器30。其中該鏡座1〇、—個鏡筒2()和至少— 200848779 •個補償片40組成一個鏡頭模組50。 • 該鏡座10具有一頂部容置腔13，用於容置鏡筒20。 優選地，該鏡座10頂部具有一個保護罩11，用於防止灰塵 等雜物進入鏡座10内污染鏡座10内之光學元件。該保護 罩11正對鏡筒20之部分爲透明材料製成，本實施例中， 該保護罩11正對鏡筒20之部分爲一個透明板12。 該鏡筒20内設有至少一個鏡片21，該鏡筒20外徑與 該頂部容置腔13直徑相當，從而使得該鏡筒20可於光軸 方向移動同時保證鏡筒20之中心軸不偏離光軸。該鏡筒20 之材料可採用聚碳酸酯或丙烯腈-丁二烯苯乙烯中之一種 或二者之混合。 該影像感測器30可以係電荷耦合器件或互補式金屬氧 化物半導體。優選地，該影像感測器30採用陶瓷引線晶片 載體封裝（Ceramic Leaded Chip Carrier，CLCC)，塑膠引線 晶片載體封裝（Plastic Leaded Chip Carrier, PLCC)或晶片尺 ； 寸封裝（Chip Scale Package，CSP)，其上具有用於保護影像 感測器30之玻璃板31。 請參閱圖2及圖3，該至少一個補償片40設於該鏡座 10和鏡筒20之間，其中每個補償片40 —端固定於鏡筒20 另一端固定於鏡座10，用於驅動鏡筒20沿光軸方向移動， 使鏡頭模組50之成像面保持於預定平面，即影像感測器30 所在之平面。優選地，該複數補償片40位於一個垂直於光 轴之平面上，且該複數補償片40等間距設置於鏡筒20外。 於本實施例中，該補償片之個數爲兩個，其也可以爲一個、 200848779 三個:四個或更多’均等間距設置於鏡筒20外。 、口玄補^片40包括至少兩種膨張係數不同之金屬片，通 過服度之·又化志夠使得該多金屬片沿光轴方向彎曲，從而 2㈣20沿光軸方向移動。具體的’於本實施例中，該 ?二1:〇包括兩種膨脹係數不同之金屬片，該補償片40 之雙金屬片靠近鏡座1Q &立 兄庄川底邛之金屬片41之膨脹係數比靠 ίϊ ΓΛ部之金屬片42之膨服係數大。這係因爲，高 二才戈仙組5。之最佳成像面相對於影像感測器」。所 會向遠離鏡筒20之方向偏移’故應增大鏡筒2〇 器30之間之距離，才可以使圖像清晰。故應使 像感測器30之方向移動，從 像感測器30之間之距籬悌+ ^ ^ ^ 升高時，金屬…全;：，4 =發生偏移。當溫度 Μ之熱膨脹係數比全屬片42 ;t ，由於金屬片 Ο發生之形變更大了熱膨脹係數大，故金屬片 將受到壓應力，金屬二了2:界面處之位移匹配，金屬片“ 金屬片42之一制托晶 字又到拉應力，故雙金屬片會向 會向金屬片41J :相應地，當溫度降低時，雙金屬片 個 側彎曲。相應地，該補償片也可以由二 個、四個或更多之金屬 J μ m _ 底邛之入严 冓成，/、也要滿足位於靠近鏡座 數大之^服係數比靠近鏡座頂部之金屬片之膨脹係 :多金屬片之材料可以爲銅、鎳、結 及其中至少兩種金屬夕人入 鈦寺至屬 之口至，或黃銅、不銹鋼、普通 8 200848779 寺，組合物。於本實施例中，金屬片41之材料選擇的係黃 铉90%之銅和1〇%之辞），而金屬片42之材料選擇的係不 ^。黃銅之熱膨㈣㈣23xlQ_6/t：，不銹鋼之敎膨張 係數係16x1〇-6/t，故滿足金屬片41之膨服係: C之膨脹係數大。兩金屬片之厚度可以相等，也可以不葛片 其厚度要根據具體之材料而定。這裏金屬片吣和 之厚度相等，均爲約U.5毫米。 。屬片 爲提高該補償片40 ©定於鏡座1G和鏡筒2 本實施例中，分別於該鏡座1〇和鏡筒2〇上開対複 和凹槽22’分別用於卡設補償片4q之兩端。該 自仏片40可進一步通過膠水將其兩端與凹们*和凹槽U =壁固定連接。本實施例中，該鏡座1()和鏡筒進 ^開設有複數轉孔15和23，分別與該凹槽14和凹样 2連通，從而便於對凹槽14和凹槽心壁進行點膜。 δ亥鏡頭模組和相機模組具有複數補償片，通過 她，使得該補償片彎曲，從而帶動具有光學鏡二 =沿光軸方向料，使鏡賴組之成像面始終料於預定 =面=影像感測器所在平面，進而達到對鏡頭模組和相 :、、且進仃溫度補償之目的。該鏡頭模組和相機模組避免 木用自動對f、等機構，從而簡化整體結構 積及降低成本。 X』正體肢 提出，本發明確已符合發明專利之要件，遂依法 式°惟，以上所述者僅為本發明之較佳實施方 ; 不能以此限制本案之申請專利範圍。舉凡熟悉本案 9 200848779 之等效修飾或變化，皆 技藝之人士援依本發明之精神所作 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明實施例提供之相機模組之剖面示意圖。 =2係本發明實施例提供之相機模組中之補償片彎曲時之 口1J面示意圖。 圖3係圖1中之相機模組沿III-III方向之截面圖 【主要元件符號說明】 鏡座 10 透明板 12 凹槽 14,22 鏡筒 20 影像感測器 30 補償片 40 鏡頭模組 50 相機模組 100 保護罩 11 7頁部容置腔 13 點膠孔 鏡片 15,23 21 坡埤板 31 金屬片 41，42Between the same and the lens holder, the compensation sheet can be maintained at a predetermined plane due to the temperature 妾J w»: the imaging surface. A wide range of camera modules, including a lens holder, a brother-in-law shirt-like sensor and at least one compensation sheet. The lens holder and the Γ:= 置 置 该 镜 , , , , , , , , , , 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜 镜Move along the optical axis to keep the imaging surface of the lens module on the plane where the image sensor is located. The J lens module and the camera module have at least one compensatory sheet to produce a change in the degree of treading, so that the compensating piece is bent, so that the shovel = direction moves, thereby achieving the purpose of the lens mode==. The lens module and camera module avoid 揉 autofocus and other mechanisms, resulting in low cost. The overall structure is reduced and the overall volume is reduced. [Embodiment] The present invention will be further described in detail with reference to the accompanying drawings. 1 is a camera module (10) according to an embodiment of the present invention, a camera housing 10, a lens barrel 20, at least one compensation sheet 40, and a solid image sensor 30. The lens holder 1 〇, the lens barrel 2 () and at least - 200848779 • the compensation sheet 40 constitute a lens module 50. • The mirror mount 10 has a top receiving cavity 13 for receiving the lens barrel 20. Preferably, the top of the lens holder 10 has a protective cover 11 for preventing dust and the like from entering the optical element in the lens holder 10 which contaminates the lens holder 10. The portion of the protective cover 11 facing the lens barrel 20 is made of a transparent material. In this embodiment, the portion of the protective cover 11 facing the lens barrel 20 is a transparent plate 12. The lens barrel 20 is provided with at least one lens 21, and the outer diameter of the lens barrel 20 is equivalent to the diameter of the top receiving cavity 13, so that the lens barrel 20 can be moved in the optical axis direction while ensuring that the central axis of the lens barrel 20 does not deviate. Optical axis. The material of the lens barrel 20 may be one of polycarbonate or acrylonitrile-butadiene styrene or a mixture of the two. The image sensor 30 can be a charge coupled device or a complementary metal oxide semiconductor. Preferably, the image sensor 30 uses a ceramic leaded chip carrier (CLCC), a plastic leaded chip carrier (PLCC) or a chip scale; a chip scale package (CSP) There is a glass plate 31 for protecting the image sensor 30 thereon. Referring to FIG. 2 and FIG. 3 , the at least one compensation sheet 40 is disposed between the lens holder 10 and the lens barrel 20 , wherein each of the compensation sheets 40 is fixed at the other end of the lens barrel 20 and fixed to the lens holder 10 at the other end. The driving lens barrel 20 is moved in the optical axis direction to maintain the imaging surface of the lens module 50 at a predetermined plane, that is, the plane in which the image sensor 30 is located. Preferably, the plurality of compensating sheets 40 are located on a plane perpendicular to the optical axis, and the plurality of compensating sheets 40 are equally spaced outside the barrel 20. In this embodiment, the number of the compensation sheets is two, which may also be one, 200848779 three: four or more' equally spaced outside the lens barrel 20. The mouth-and-eye patch 40 includes at least two metal sheets having different expansion coefficients, and the multi-metal sheet is bent in the optical axis direction by the degree of service, so that the 2 (four) 20 moves in the optical axis direction. Specifically, in the present embodiment, the two 1:1 includes two metal sheets having different expansion coefficients, and the bimetal of the compensation sheet 40 is adjacent to the expansion of the metal piece 41 of the lens holder 1Q & The coefficient is larger than the expansion factor of the metal piece 42 of the ΓΛ ΓΛ. This is because the high school is only the Gexian group 5. The best imaging surface is relative to the image sensor." The distance between the lens barrels 20 and the lens barrels 20 should be increased in order to make the image clear. Therefore, the direction of the image sensor 30 should be moved, and when the distance between the image sensor 30 is increased by the fence + ^ ^ ^, the metal...all;:, 4 = offset occurs. When the temperature coefficient of thermal expansion is higher than that of the whole piece 42;t, since the shape of the metal piece is changed, the coefficient of thermal expansion is large, so the metal piece will be subjected to compressive stress, and the metal is 2: the displacement at the interface is matched, the metal piece is " One of the metal pieces 42 is made to pull the crystal to the tensile stress, so the bimetal will be directed toward the metal piece 41J: correspondingly, when the temperature is lowered, the bimetal side is bent. Accordingly, the compensation piece can also be Two, four or more metals J μ m _ 邛 入 入 , , , , , , , , , , , , , , , , , , , , , , , , , , , , : : : : : : : : : : : : : : The material may be copper, nickel, knot and at least two of the metals of the genus to the genus to the genus, or brass, stainless steel, ordinary 8 200848779 temple, composition. In this embodiment, the metal sheet 41 The material selection is 90% copper and 1%% of the yellow enamel, and the material selection of the metal piece 42 is not. The thermal expansion of the brass (4) (4) 23xlQ_6/t:, the expansion coefficient of the stainless steel is 16x1〇-6 /t, so it satisfies the expansion of the metal sheet 41: C has a large expansion coefficient. The thickness of the metal piece may be equal, or the thickness of the piece may be determined according to the specific material. Here, the thickness of the metal piece is equal to about U. 5 mm. The piece is for improving the compensation piece 40. In the embodiment of the lens holder 1G and the lens barrel 2, the opening and the recess 22' are respectively formed on the lens holder 1 and the lens barrel 2, respectively, for clamping the two ends of the compensation sheet 4q. 40 can be further fixedly connected to the concave member * and the groove U = wall by glue. In this embodiment, the lens holder 1 () and the lens barrel are provided with a plurality of rotary holes 15 and 23, respectively The groove 14 and the concave sample 2 are connected to facilitate the filming of the groove 14 and the groove core wall. The δ ray lens module and the camera module have a plurality of compensation pieces through which the compensation piece is bent, thereby driving Optical mirror 2 = material along the optical axis, so that the imaging surface of the mirror group always takes the predetermined = surface = image sensor plane, and then achieve the purpose of lens module and phase:, and temperature compensation. The lens module and the camera module avoid the use of automatic mechanisms for wood and the like, thereby simplifying the overall structure and Low cost. X" is the body of the limb, the invention has indeed met the requirements of the invention patent, according to the law, only the above is only the preferred embodiment of the invention; can not limit the scope of the patent application of this case. Appropriate to the equivalent modification or change of the present invention 9 200848779, the person skilled in the art should be included in the scope of the following patent application according to the spirit of the present invention. [Simplified description of the drawings] FIG. 1 is a camera module provided by an embodiment of the present invention. 2 is a schematic view of the port 1J surface of the camera module in the camera module according to the embodiment of the present invention. FIG. 3 is a cross-sectional view of the camera module in FIG. 1 along the III-III direction. 】 Mirror base 10 transparent plate 12 groove 14, 22 lens barrel 20 image sensor 30 compensation piece 40 lens module 50 camera module 100 protective cover 11 7-page accommodating cavity 13 dispensing hole lens 15, 23 21 slope Seesaw 31 metal sheet 41, 42