201000956 九、發明說明： 【發明所屬之技術領域】 本發明涉及鏡頭模組技術領域，尤其涉及〆種液體鏡 頭及包括該液體鏡頭之鏡頭模組。 【先前技術】 *自動對焦技*已廣泛應用於相機、攝影機以及影像掃 ^等成像領域。自㈣焦技術使得鏡頭模組能根據物體之 =近自動調整鏡頭模組之對焦鏡片組之位置，以使得鏡頭 模組之成像平面上之成像清晰。 !知鏡頭模組中之每個鏡片之形狀及焦平面固定不 ϊ距能藉由改變各鏡片之相對位置來達成相機模組 …、距之a ’從而使得圖像中之景物達成放大或縮小。 馬達頭模組而言，業界—般採用步進馬達或飼服 為動力源驅動鏡片移動以達到變焦及對焦目的，盆 已/、有相對成熟之精確定位技術 2端:⑴機械式變焦、對焦鏡頭一般 成本高昂、耗ΐ量大及裝步刪、體積大、 成像裂置短 Γ 之他，難以滿足當前可攜式 構於機㈣薄之發展趨勢；⑺該複數傳動機 過程中易產生背隙，導致對焦精度不 導致該可攜式電子丄置：：件大多需通電才能工作，這 :攜式電子裝置易因為電磁幹擾而影響正常工作。 為適應可攜式成像震置小型化之需求， 201000956 *展了液體鏡頭。該液體鏡頭一 體，本亜茲士a^扣土乂…反+相浴之液 ρ. 9 °谷肩該液體之腔室施加電壓而改變液體之 間之介面曲率調節隹ΐΕ ^ …巨。但這種調節焦距之方法需一 腔室通電以避免液體之門—人 而直對 體之間之；丨面因重力使曲率變化，功耗 仍較大，且仍存有電磁幹擾。 有鑑於此，提供一種液體鏡頭及包括該液體鏡頭之鏡 頭模組以簡化結構及降低功耗實為必要。 【發明内容】 以下結合實施例說明一種液體鏡頭及包括該液體鏡頭 之鏡頭模組。 一種液體鏡頭，其包括承載體及光學體。該承載體具 有與外界相通之腔體。該光學體包括透明密封體及填滿於 該透明密封體内之一種透明液體，該光學體收容於該腔體 且部分凸出於腔體。 一種鏡頭模組’其包括鏡筒及設於鏡筒内之液體鏡 頭。該液體鏡頭包括承載體及光學體。該承載體具有與外 界相通之腔體。該光學體包括透明密封體及填滿於透明密 封體内之一種透明液體，該光學體收容於腔體且部分凸出 於腔體。 【實施方式】 以下將結合實施例及附圖對本技術方案提供之液體鏡 頭及包括該液體鏡頭之鏡頭模組進行詳細說明。 201000956 請一併參閱圖1及圖2,本技術方案實施例提供之液體 鏡頭20包括承載體21及光學體22。 承載體21具有底壁211、側壁212、頂壁213。頂壁 213與底壁211相對且相互平行設置，側壁213設於頂壁 213與底壁211之間，並分別與頂壁213與底壁211相連， 底壁211、側壁212與頂壁213配合圍合形成腔體214。頂 壁213開設有與腔體214相通之通孔215，由此使得腔體 214與外界相通。腔體214用於收容光學體22，並使得收 容於其中之部分光學體22具有與其匹配之形狀。承載體21 可全由透明導電材料製成，亦可僅底壁211由透明導電材 料製成。本實施例中，僅底壁211由透明導電材料製成。 該透明導電材料可為透明之金屬氧化物或金屬摻雜氧化 物，如銦錫氧化物、氧化鋅、氧化錫、銦摻雜一氧化錫、 錫摻雜三氧化二鎵、錫摻雜銀銦氧化物、銦錫氧化物、鋅 摻雜三氧化二銦、銻摻雜二氧化錫、鋁摻雜氧化鋅等。 光學體22 —部分收容於承載體21内，該部分光學體 22具有與腔體214匹配之形狀，另一部分光學體22藉由通 孔215而凸出於頂壁213。光學體22包括密封體221及填 充於密封體221内之一種液體222。 密封體221用於密封液體222，其由軟質透明材質製 成。當充滿液體222時，密封體221由於液體222之可流 動性而具有不定形狀，置於承載體21内時，密封體221由 於受承載體21之擠壓，其形狀會發生適應性地變化，直至 與腔體214形狀相同。該軟質透明材料可為本領域常用之 9 201000956 具有較1¾透光率及較好柔順性之塑膠薄膜或橡膠薄膜，如 聚甲基丙烯酉欠甲醋薄膜、聚碳酸醋薄膜、聚酿亞胺薄膜或 聚對苯二甲酸乙二醇g旨薄膜。此外，㈣冑221亦可由硬 質透明材料製成。 液體222可為一導電液體，亦可為一絕緣液體，但必 須具有較高之透明度’以不影響光線人射以及圖像之形 成。液體222可為本領域常用之材料，例如鹽水、硫酸納 溶液、石夕酮油溶液、漠代十二烧溶液中之一種。液體從 之體積大於腔體214之體積，以使填充有液體222之密封 體221放置於腔體214時，密封體221受承載體之擠壓 作用而部分凸出於頂壁213。 月^見圖3本技術方案實施例提供之鏡頭模組1 Q〇 包括鏡筒10、液體鏡頭20、壓電驅動裝置30、鏡片組4〇、 間隔體50、鏡頭座6〇及影像感測器元件7〇。其中，液體 鏡頭20鏡片組4〇、間隔體5〇沿光軸設於鏡筒内，壓 電驅動裝置30與液體鏡頭20相連。 鏡筒10於光軸方向設有光孔101，以使光線能射入液 體鏡頭20。為防止灰塵等雜物進入鏡頭裝置1〇〇，可於光 孔101處設置一透明擋板。鏡筒1〇可由射出成型方式制 得，其材質可選用金屬如銅合金或鋁合金，塑膠如聚丙烯/ 丙浠腈-丁 —烯_苯乙歸、聚碳酸酯或聚四氟乙烯或其它本領 域常用材料。鏡筒1〇之外壁可設有螺紋，其用於與鏡頭座 60所設之螺紋相配合，使得鏡筒10可固定於鏡頭座60。 鐘:筒10亦可藉由其它方式固定於鏡頭座6〇。 201000956 請一併參閱圖1、圖2及圖3，液體鏡頭20之部分光 學體22凸出於頂壁213，由此形成與光孔101對應之光學 部223及圍繞於該光學部223並與光學部223相連之擠壓 部224。優選地，光學部223於底壁211之投影與光孔101 於底壁211之投影重合。擠壓部224與光學部223相連， 且與光學部223具有相同中心軸線。此外，光孔101於底 壁211之投影可位於光學部223於底壁211之投影内。 壓電驅動裝置30包括壓電結構31及直流電壓供給器 32 ° 壓電結構31可為採用電子束熱蒸鍍等技術沉積於擠壓 部224表面之壓電陶瓷薄膜層，亦可為藉由膠合黏結等機 械固定方式固定於擠壓部224表面之壓電陶瓷片。壓電結 構31具機電轉換功能，可將施加其上之電能轉換為相應之 機械能，故，壓電結構31於電場作用下可發生一定形狀之 機械形變。由於锆鈦酸鉛（Pb(ZrTi)03，簡稱PZT)具有較 高靈敏度，且易於物體表面黏貼或内部嵌埋，故壓電結構 31優選由錯鈦酸錯製成。 直流電壓供給器32 —端與接觸於壓電結構31之電極 (圖未示）相連，另一端與設於底壁211之電極（圖未示） 相連，用於根據需要於壓電結構31及底壁211之間提供直 流電壓，從而使得壓電結構31於其極化方向產生直流電 場，而帶動擠壓部224產生機械形變。直流電壓供給器32 可為DC/DC轉換器或AC/DC轉換器，本實施例中，採用 DC/DC轉換器。壓電結構31之機械形變與施加其上之電場 11 201000956 .強度E成正比例關係，可用下述簡單公式表示壓電結構^ 之機械形變量與電場強度E之比例關係：s = dE，s為壓電 結構31於某-電場強度E時之形變量，d為壓電結構μ 之壓電常數。由上述公式可知，若要使壓電結構31發生一 定之形變S時，可施加電場強度E為s/d之直流電場。 當給壓電結構31施加一與極化方向相同（或相反）之 電場時，由於電場方向與極化方向相同（或相反），起著極 化強度增大（錢小）之仙，使壓電結構31引起沿極化 方向增長（或縮短）之機械形變。本實施例中，壓電社 31之極化方向垂直於漏部224與壓電結構31相連之表 面，直流電壓供給器32提供與壓電結構31極化方向相同 之電場，從而使得壓電結構31具有垂直於擠壓部224與壓 電結構31相連之表面方向之機械形變。 鏡片組40之個數及各鏡片之種類根據實際需要而定。 本實施例中，鏡片組40包括第一鏡片41、第二鏡片化及 弟三鏡片43。 \ 第一鏡片41及第二鏡片42可為球面鏡片或非球面鏡 片第鏡片41及第二鏡片42以本領域常見之互卡方式 固定於鏡筒10内，還可本領域常見之其它方式固定於鏡筒 10内，如點膠或於鏡筒10内壁設置螺紋。 第二鏡片43為濾、光片，用於消除因紅外線引起之色 偏，其既可為紅外遽光片，亦可為紅外_紫外複合之滤光片。 鏡片組40亦可不設置第三鏡片43。 間隔體50設於第一鏡片41與第二鏡片42之間、液體 12 201000956 •鏡頭20與第一鏡片41之間以及第二鏡片42與第三鏡片43 之間，用以控制光通量之大小及間隔相鄰兩光學元件。間 隔體50可為本領域常用之光圈或間隔環。 、鏡頭座60具有容置腔61，用於容納固定鏡筒ι〇及影 像感測器元件70。鏡頭座60具有第一基座部62及與第一 基座部62相連之第二基座部63。第一基座部62内壁設有 螺紋，其與鏡筒10之外壁之螺紋相配合，用於將鏡筒ι〇 固定於鏡頭座60。第二基座部63可用於與其它元件或裝置 相連，如連接於封裝有影像感測器元件之電路板。 影像感測器元件70可設於鏡筒1〇内，亦可設於鏡頭 座60本實細> 例影像感測器元件7〇收容於容置腔61，其 將從光孔101進入液體鏡頭2〇，並依次透過鏡片組之光 訊號轉換成電訊號，從而獲取數位圖像訊號。影像感測器 元件70可為電荷耦合元件或互補金屬氧化物半導體元件。 鏡頭模組100還可進一步包括套設於鏡頭座6〇之外表 、面之電磁遮罩套，以進一步遮罩外界電磁波對影像感測器 疋件7〇之幹擾，從而提升成像品質。該電磁遮罩套之材料 選自銅、鋁、銀、鎳、鈦及不銹鋼等之其令一種，其厚度 根據實際需要設計，優選為i微米至5〇微米。 、使用本實施例之液體鏡頭模組100進行兩段式變焦以 、拍時，只需利用直流電壓供給器施加愿電結構31 一 個與壓電結構31極化方向相同且強度適當之直流電場即可 電結構31產生形變，以驅動與壓電結構31相連之擠 β °卩224產生相應之機械形變，從而改變光學部223形狀， 13 201000956 使其達到近拍焦距所需曲率。當需遠焦距拍攝時，停止直 流電麼供給器32之工作，使藶電結構31及光學體22形變 回復，即可使鏡頭模組1〇〇達到遠拍時之焦距。 綜上所述，本發明確已符合發明專利之要件，遂依法 提出專利申請。惟’以上所述者僅為本發明之較佳實施方 式’自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝=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係本技術方案實施例提供之液體鏡頭之示意圖。 一圖2係本技術方案實施例提供之液體鏡頭之承載體之 示意圖。 圖3係本技術方案實施例提供之鏡頭模組之示意圖。 【主要元件符號說明】 液體鏡頭 20 承載體 21 光學體 22 底壁 211 側壁 212 頂壁 213 腔體 214 通孔 215 密封體 221 201000956 液體 222 鏡頭模組 100 鏡简 10 壓電驅動裝置 30 鏡片組 40 間隔體 50 鏡頭座 60 影像感測器元件 70 光孔 101 光學部 223 擠壓部 224 壓電結構 31 直流電壓供給器 32 第一鏡片 41 第二鏡片 42 第三鏡片 43 容置腔 61 第一基座部 62 第二基座部 63 15The present invention relates to the field of lens modules, and in particular to a liquid lens and a lens module including the liquid lens. [Prior Art] * Autofocus technology* has been widely used in cameras, video cameras, and image scanning. The (four) focus technology enables the lens module to automatically adjust the position of the focus lens group of the lens module according to the object's near-infrared to make the image on the imaging plane of the lens module clear. Knowing the shape of each lens in the lens module and the fixed focal length of the focal plane can achieve the camera module by changing the relative position of each lens, and the distance from the '', so that the scene in the image can be enlarged or reduced. . In terms of the motor head module, the industry generally uses a stepping motor or a feeding machine as a power source to drive the lens movement to achieve zooming and focusing purposes. The basin has / relatively mature precision positioning technology 2 end: (1) mechanical zoom, focus The lens is generally costly, consumes a lot of money, and has a large size and a short image. It is difficult to meet the current development trend of portable (4) thin; (7) the complex conveyor is prone to back Gap, resulting in focus accuracy does not cause the portable electronic device: Most of the components need to be powered to work, this: portable electronic devices are susceptible to normal operation due to electromagnetic interference. In order to meet the needs of miniaturization of portable imaging, 201000956 * exhibited a liquid lens. The liquid lens is one body, the 亜 士 a ^ 乂 乂 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 反 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该However, this method of adjusting the focal length requires a chamber to be energized to avoid the door of the liquid - the person is directly opposite to the body; the curvature of the face changes due to gravity, the power consumption is still large, and electromagnetic interference still exists. In view of the above, it is necessary to provide a liquid lens and a lens module including the liquid lens to simplify the structure and reduce power consumption. SUMMARY OF THE INVENTION A liquid lens and a lens module including the same are described below with reference to the embodiments. A liquid lens comprising a carrier and an optical body. The carrier has a cavity that communicates with the outside. The optical body includes a transparent sealing body and a transparent liquid filled in the transparent sealing body, the optical body being received in the cavity and partially protruding out of the cavity. A lens module 'includes a lens barrel and a liquid lens disposed in the lens barrel. The liquid lens includes a carrier and an optical body. The carrier has a cavity that communicates with the outer boundary. The optical body includes a transparent sealing body and a transparent liquid filled in the transparent sealing body, the optical body being received in the cavity and partially protruding from the cavity. [Embodiment] Hereinafter, a liquid lens provided by the present technical solution and a lens module including the liquid lens will be described in detail with reference to the embodiments and the accompanying drawings. 201000956 Please refer to FIG. 1 and FIG. 2 together, the liquid lens 20 provided by the embodiment of the present technical solution includes a carrier 21 and an optical body 22. The carrier 21 has a bottom wall 211, a side wall 212, and a top wall 213. The top wall 213 is opposite to the bottom wall 211 and is disposed in parallel with each other. The side wall 213 is disposed between the top wall 213 and the bottom wall 211, and is respectively connected to the top wall 213 and the bottom wall 211. The bottom wall 211 and the side wall 212 cooperate with the top wall 213. Enclosure forms a cavity 214. The top wall 213 is provided with a through hole 215 communicating with the cavity 214, thereby allowing the cavity 214 to communicate with the outside. The cavity 214 is for receiving the optical body 22 such that a portion of the optical body 22 received therein has a shape matched thereto. The carrier 21 may be entirely made of a transparent conductive material, or only the bottom wall 211 may be made of a transparent conductive material. In this embodiment, only the bottom wall 211 is made of a transparent conductive material. The transparent conductive material may be a transparent metal oxide or a metal doped oxide such as indium tin oxide, zinc oxide, tin oxide, indium doped tin oxide, tin doped gallium oxide, tin doped silver indium. Oxide, indium tin oxide, zinc-doped indium trioxide, antimony doped tin dioxide, aluminum doped zinc oxide, and the like. The optical body 22 is partially housed in a carrier 21 having a shape that matches the cavity 214, and the other portion of the optical body 22 protrudes from the top wall 213 by a through hole 215. The optical body 22 includes a sealing body 221 and a liquid 222 filled in the sealing body 221. The sealing body 221 is for sealing the liquid 222, which is made of a soft transparent material. When the liquid 222 is filled, the sealing body 221 has an indefinite shape due to the flowability of the liquid 222. When placed in the carrier 21, the shape of the sealing body 221 is adaptively changed by being pressed by the carrier 21. Until the shape is the same as the cavity 214. The soft transparent material can be commonly used in the field. 9 201000956 Plastic film or rubber film with higher light transmittance and better flexibility, such as polymethyl methacrylate acetal film, polycarbonate film, poly nitrite Film or polyethylene terephthalate g film. In addition, (4) 胄221 may also be made of a hard transparent material. The liquid 222 can be a conductive liquid or an insulating liquid, but must have a high degree of transparency to not affect the formation of light rays and images. The liquid 222 can be a material commonly used in the art, such as one of a brine, a sodium sulphate solution, a sulphuric acid oil solution, and a sulphuric acid solution. When the volume of the liquid is larger than the volume of the cavity 214 so that the sealing body 221 filled with the liquid 222 is placed in the cavity 214, the sealing body 221 is partially protruded from the top wall 213 by the pressing action of the carrier. The lens module 1 Q provided in the embodiment of the present invention includes a lens barrel 10, a liquid lens 20, a piezoelectric driving device 30, a lens group 4〇, a spacer 50, a lens holder 6〇, and image sensing. Device element 7〇. The liquid lens 20 lens group 4 〇 and the spacer 5 设 are disposed in the lens barrel along the optical axis, and the piezoelectric driving device 30 is connected to the liquid lens 20. The lens barrel 10 is provided with a light hole 101 in the optical axis direction to allow light to enter the liquid lens 20. To prevent dust and other debris from entering the lens unit 1 , a transparent shutter can be placed at the aperture 101. The lens barrel 1 can be made by injection molding, and the material thereof can be selected from metal such as copper alloy or aluminum alloy, plastic such as polypropylene / acrylonitrile - butylene - styrene, polycarbonate or polytetrafluoroethylene or other Materials commonly used in the field. The outer wall of the lens barrel 1 can be provided with a thread for cooperating with the thread provided by the lens holder 60 so that the lens barrel 10 can be fixed to the lens holder 60. Bell: The cartridge 10 can also be fixed to the lens mount 6 by other means. 201000956 Please refer to FIG. 1 , FIG. 2 and FIG. 3 , a part of the optical body 22 of the liquid lens 20 protrudes from the top wall 213 , thereby forming an optical portion 223 corresponding to the optical hole 101 and surrounding the optical portion 223 and The pressing portion 224 to which the optical portion 223 is connected. Preferably, the projection of the optical portion 223 on the bottom wall 211 coincides with the projection of the optical hole 101 on the bottom wall 211. The pressing portion 224 is connected to the optical portion 223 and has the same central axis as the optical portion 223. Furthermore, the projection of the aperture 101 in the bottom wall 211 can be located within the projection of the optical portion 223 at the bottom wall 211. The piezoelectric driving device 30 includes a piezoelectric structure 31 and a DC voltage supply device. The piezoelectric structure 31 can be a piezoelectric ceramic film layer deposited on the surface of the pressing portion 224 by electron beam thermal evaporation or the like. A piezoelectric ceramic sheet fixed to the surface of the pressing portion 224 by mechanical bonding such as gluing. The piezoelectric structure 31 has an electromechanical conversion function, which converts the electric energy applied thereto into a corresponding mechanical energy, so that the piezoelectric structure 31 can undergo a mechanical deformation of a certain shape under the action of an electric field. Since lead zirconate titanate (Pb(ZrTi) 03, abbreviated as PZT) has high sensitivity and is easy to adhere or embed the surface of the object, the piezoelectric structure 31 is preferably made of a wrong titanic acid. The DC voltage supplier 32 is connected to the electrode (not shown) contacting the piezoelectric structure 31, and the other end is connected to an electrode (not shown) provided on the bottom wall 211 for the piezoelectric structure 31 and A DC voltage is supplied between the bottom walls 211 such that the piezoelectric structure 31 generates a DC electric field in its polarization direction, and the pressing portion 224 is caused to mechanically deform. The DC voltage supplier 32 can be a DC/DC converter or an AC/DC converter. In this embodiment, a DC/DC converter is employed. The mechanical deformation of the piezoelectric structure 31 is proportional to the electric field 11 201000956. The intensity E is proportional to the relationship between the mechanical deformation of the piezoelectric structure and the electric field strength E: s = dE, s is The shape of the piezoelectric structure 31 at a certain electric field strength E, and d is the piezoelectric constant of the piezoelectric structure μ. It can be seen from the above formula that a DC electric field having an electric field intensity E of s/d can be applied if a certain deformation S occurs in the piezoelectric structure 31. When an electric field of the same (or opposite) direction to the polarization is applied to the piezoelectric structure 31, since the direction of the electric field is the same as (or opposite to) the polarization direction, the polarization is increased (the money is small), and the pressure is made. The electrical structure 31 causes mechanical deformation that increases (or shortens) in the direction of polarization. In this embodiment, the polarization direction of the piezoelectric element 31 is perpendicular to the surface of the drain portion 224 connected to the piezoelectric structure 31, and the DC voltage supplier 32 provides the same electric field as the polarization direction of the piezoelectric structure 31, thereby making the piezoelectric structure 31 has a mechanical deformation perpendicular to the surface direction of the pressing portion 224 and the piezoelectric structure 31. The number of lens groups 40 and the type of each lens are determined according to actual needs. In this embodiment, the lens group 40 includes a first lens 41, a second lens, and a third lens 43. The first lens 41 and the second lens 42 may be a spherical lens or an aspherical lens. The lens 41 and the second lens 42 are fixed in the lens barrel 10 in a mutual card manner commonly used in the art, and may be fixed in other manners common in the art. In the lens barrel 10, for example, dispensing or threading is provided on the inner wall of the lens barrel 10. The second lens 43 is a filter or a light sheet for eliminating the color shift caused by infrared rays, and may be an infrared fluorescent sheet or an infrared-ultraviolet composite filter. The lens group 40 may also not be provided with the third lens 43. The spacer 50 is disposed between the first lens 41 and the second lens 42, the liquid 12 201000956, the lens 20 and the first lens 41, and between the second lens 42 and the third lens 43 for controlling the luminous flux and The two optical elements are adjacent to each other. The spacer 50 can be a diaphragm or spacer ring commonly used in the art. The lens mount 60 has a receiving cavity 61 for receiving the fixed lens barrel and the image sensor element 70. The lens mount 60 has a first base portion 62 and a second base portion 63 connected to the first base portion 62. The inner wall of the first base portion 62 is provided with a thread that cooperates with the thread of the outer wall of the lens barrel 10 for fixing the lens barrel to the lens mount 60. The second base portion 63 can be used to connect to other components or devices, such as a circuit board that is packaged with image sensor components. The image sensor component 70 can be disposed in the lens barrel 1 or can be disposed on the lens holder 60. The image sensor element 7 is received in the accommodating cavity 61, and will enter the liquid from the optical hole 101. The lens is 2 〇, and is sequentially converted into an electrical signal by the optical signal of the lens group to obtain a digital image signal. Image sensor component 70 can be a charge coupled device or a complementary metal oxide semiconductor device. The lens module 100 further includes an electromagnetic shielding cover sleeved on the surface and the surface of the lens holder 6 to further shield the external electromagnetic wave from interfering with the image sensor element, thereby improving the image quality. The material of the electromagnetic shielding cover is selected from the group consisting of copper, aluminum, silver, nickel, titanium and stainless steel, and the thickness thereof is designed according to actual needs, preferably from 1 micrometer to 5 micrometers. When the liquid lens module 100 of the present embodiment is used for two-stage zooming, the DC power supply is used to apply the electro-optic structure 31. A DC electric field having the same polarization direction as the piezoelectric structure 31 and having an appropriate intensity is The electrically structurable structure 31 is deformed to drive the extrusion of the piezoelectric structure 31 to produce a corresponding mechanical deformation, thereby changing the shape of the optical portion 223, 13 201000956 to achieve the desired curvature of the macro focus. When the far focus shooting is required, the operation of the DC power supply 32 is stopped, and the piezoelectric structure 31 and the optical body 22 are deformed to be restored, so that the lens module 1 can reach the focal length at the time of the remote shooting. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the patent application of the present invention is not limited thereto. Equivalent modifications or variations made by persons skilled in the art, in accordance with the spirit of the invention, are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a liquid lens provided by an embodiment of the present technical solution. FIG. 2 is a schematic diagram of a carrier for a liquid lens provided by an embodiment of the present technical solution. FIG. 3 is a schematic diagram of a lens module provided by an embodiment of the present technical solution. [Main component symbol description] Liquid lens 20 Carrier 21 Optical body 22 Bottom wall 211 Side wall 212 Top wall 213 Cavity 214 Through hole 215 Sealing body 221 201000956 Liquid 222 Lens module 100 Mirror 10 Piezoelectric actuator 30 Lens group 40 Spacer 50 lens holder 60 image sensor element 70 light hole 101 optical part 223 pressing part 224 piezoelectric structure 31 DC voltage supply 32 first lens 41 second lens 42 third lens 43 accommodating cavity 61 first base Seat portion 62 second base portion 63 15