TWI636315B - Camera module and image capturing unit thereof - Google Patents
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Abstract
一種影像擷取單元,包括一基座、一框架、一鏡頭承載座、一第一磁鐵、一第一線圈、一第二磁鐵以及一第二線圈。前述框架活動地連接基座,前述鏡頭承載座活動地設置於框架內,用以收容一鏡頭。前述第一磁鐵設置於基座上,前述第一線圈設置於框架上,當第一線圈被施加電流時,第一磁鐵與第一線圈之間產生磁力迫使框架和鏡頭承載座相對於基座移動。前述第二磁鐵設置於框架上,前述第二線圈設置於鏡頭承載座上,當第二線圈被施加電流時,第二磁鐵與第二線圈之間產生磁力迫使鏡頭承載座相對於框架移動。 An image capturing unit includes a base, a frame, a lens carrier, a first magnet, a first coil, a second magnet, and a second coil. The frame is movably connected to the base, and the lens carrier is movably disposed in the frame for receiving a lens. The first magnet is disposed on the base, and the first coil is disposed on the frame. When a current is applied to the first coil, a magnetic force is generated between the first magnet and the first coil to force the frame and the lens carrier to move relative to the base. . The second magnet is disposed on the frame, and the second coil is disposed on the lens carrier. When a current is applied to the second coil, a magnetic force is generated between the second magnet and the second coil to force the lens carrier to move relative to the frame.
Description
本發明係關於一種攝像模組,特別係有關於一種具有磁鐵元件的攝像模組。 The invention relates to a camera module, in particular to a camera module with a magnet element.
在現有的雙鏡頭攝像模組中,兩個影像擷取單元(image capturing unit)之位置通常相當靠近,因此設置在不同鏡頭驅動模組內的磁鐵容易產生磁干擾(magnetic interference),使得會隨著鏡頭承載座移動之鏡頭的對焦速度及準確度受到影響;此外,在僅有單一影像擷取單元的攝像模組中,其內部的磁鐵也容易和其他元件產生磁干擾。有鑑於此,如何降低攝像模組內部之磁性元件所產生的磁干擾始成為一重要之課題。 In the existing dual-lens camera module, the positions of the two image capturing units are usually relatively close, so the magnets disposed in different lens driving modules are prone to magnetic interference, so that The focus speed and accuracy of the lens on which the lens holder moves are affected; in addition, in a camera module having only a single image capturing unit, the internal magnet is also susceptible to magnetic interference with other components. In view of this, how to reduce the magnetic interference generated by the magnetic components inside the camera module has become an important issue.
有鑑於上述習知問題點,本發明之一目的在於提供一種影像擷取單元,包括一基座、一框架、一鏡頭承載座、一第一磁鐵、一第一線圈、一第二磁鐵以及一第二線圈。前述框架活動地連接基座,前述鏡頭承載座活動地設置於框架內,用以收容一鏡頭。前述第一磁鐵設置於基座上,前述第一線圈設置於框架上,其中當第一線圈被施加電流時,第一 磁鐵與第一線圈之間產生磁力迫使框架和鏡頭承載座相對於基座移動。前述第二磁鐵設置於框架上,前述第二線圈設置於鏡頭承載座上,其中當第二線圈被施加電流時,第二磁鐵與第二線圈之間產生磁力迫使鏡頭承載座相對於框架移動。 In view of the above problems, an object of the present invention is to provide an image capturing unit including a base, a frame, a lens carrier, a first magnet, a first coil, a second magnet, and a The second coil. The frame is movably connected to the base, and the lens carrier is movably disposed in the frame for receiving a lens. The first magnet is disposed on the base, and the first coil is disposed on the frame, wherein when a current is applied to the first coil, a magnetic force is generated between the first magnet and the first coil to force the frame and the lens carrier relative to the base mobile. The second magnet is disposed on the frame, and the second coil is disposed on the lens carrier. When a current is applied to the second coil, a magnetic force is generated between the second magnet and the second coil to force the lens carrier to move relative to the frame.
於一實施例中,當第一線圈被施加電流時,框架和鏡頭承載座相對於基座沿一第一方向移動,且第一方向垂直於鏡頭之一光軸。 In one embodiment, when the first coil is applied with current, the frame and lens carrier move in a first direction relative to the base, and the first direction is perpendicular to one of the optical axes of the lens.
於一實施例中,當第二線圈被施加電流時,鏡頭承載座相對於框架沿一第二方向移動,且第二方向垂直於第一方向。 In an embodiment, when the second coil is applied with current, the lens carrier moves in a second direction relative to the frame, and the second direction is perpendicular to the first direction.
於一實施例中,前述影像擷取單元更包括一第三磁鐵以及一第三線圈,第三磁鐵設置於框架上,且第三線圈設置於基座上,當第三線圈被施加電流時,第三磁鐵與第三線圈之間產生磁力迫使框架和鏡頭承載座相對於基座移動。 In an embodiment, the image capturing unit further includes a third magnet and a third coil. The third magnet is disposed on the frame, and the third coil is disposed on the base. When the third coil is applied with current, The magnetic force generated between the third magnet and the third coil forces the frame and the lens carrier to move relative to the base.
於一實施例中,前述第一線圈以及第三磁鐵分別具有一底面,對應於第一磁鐵以及第三線圈,且第一線圈以及第三磁鐵之底面相互對齊。 In one embodiment, the first coil and the third magnet respectively have a bottom surface corresponding to the first magnet and the third coil, and the bottom surfaces of the first coil and the third magnet are aligned with each other.
於一實施例中,前述第一磁鐵以及第三線圈分別具有一頂面,對應於第一線圈以及第三磁鐵,且第一磁鐵以及第三線圈之些頂面相互對齊。 In one embodiment, the first magnet and the third coil respectively have a top surface corresponding to the first coil and the third magnet, and the top surfaces of the first magnet and the third coil are aligned with each other.
於一實施例中,前述影像擷取單元更包括一驅動板,且第三線圈固定於驅動板上,其中驅動板具有一C字形結構,且第一磁鐵位於於C字形結構之一開口處。 In one embodiment, the image capturing unit further includes a driving board, and the third coil is fixed to the driving board, wherein the driving board has a C-shaped structure, and the first magnet is located at one of the openings of the C-shaped structure.
於一實施例中,前述影像擷取單元更包括一第三 磁鐵以及一第三線圈,第三磁鐵設置於基座上,且第三線圈設置於框架上,當第三線圈被施加電流時,第三磁鐵與第三線圈之間產生磁力迫使框架和鏡頭承載座相對於基座移動。 In an embodiment, the image capturing unit further includes a third magnet and a third coil. The third magnet is disposed on the base, and the third coil is disposed on the frame. When the third coil is applied with current, The magnetic force generated between the third magnet and the third coil forces the frame and the lens carrier to move relative to the base.
於一實施例中,從垂直於鏡頭之一光軸的方向觀察,第一線圈以及第二磁鐵至少部分重疊。 In one embodiment, the first coil and the second magnet at least partially overlap when viewed in a direction perpendicular to the optical axis of one of the lenses.
於一實施例中,前述第一、二磁鐵的其中至少一者為多極磁鐵。 In one embodiment, at least one of the first and second magnets is a multi-pole magnet.
於一實施例中,本發明更提供一種攝像模組,包括兩個如前所述的影像擷取單元,其中前述影像擷取單元中的第一磁鐵以及第一線圈分別位於影像擷取單元彼此相鄰的兩側。 In an embodiment, the present invention further provides a camera module, comprising two image capturing units as described above, wherein the first magnet and the first coil of the image capturing unit are respectively located in the image capturing unit Adjacent sides.
於一實施例中,前述影像擷取單元中的前述第一磁鐵係以一體成形的方式製作而整合為單一構件。 In one embodiment, the first magnets in the image capturing unit are integrally formed and integrated into a single member.
於一實施例中,前述第一磁鐵係以一體成形的方式製作而整合為一六極磁鐵。 In one embodiment, the first magnet is integrally formed and integrated into a six-pole magnet.
於一實施例中,前述影像擷取單元中的底座係以一體成形的方式製作而整合為單一構件。 In one embodiment, the base in the image capturing unit is integrally formed and integrated into a single member.
於一實施例中,本發明更提供一種攝像模組,包括如前所述的影像擷取單元以及一照相單元,其中影像擷取單元和照相單元沿一長軸方向排列,且第一磁鐵以及第一線圈設置於影像擷取單元中鄰近於照相單元之一側。 In an embodiment, the present invention further provides a camera module, comprising the image capturing unit and a camera unit as described above, wherein the image capturing unit and the camera unit are arranged along a long axis direction, and the first magnet and The first coil is disposed in the image capturing unit adjacent to one side of the camera unit.
1、1’、2、2’‧‧‧影像擷取單元 1, 1', 2, 2' ‧ ‧ image capture unit
10、10’‧‧‧外殼 10, 10’‧‧‧ Shell
12、22‧‧‧開孔 12, 22‧‧‧ openings
20、20’‧‧‧基座 20, 20’ ‧ ‧ pedestal
30‧‧‧鏡頭承載座 30‧‧‧Lens carrier
32‧‧‧貫穿孔 32‧‧‧through holes
40‧‧‧第二線圈 40‧‧‧second coil
50‧‧‧框架 50‧‧‧Frame
52A、52B、52C‧‧‧側壁 52A, 52B, 52C‧‧‧ side walls
60‧‧‧第一線圈 60‧‧‧First coil
62、62’‧‧‧第一磁鐵 62, 62'‧‧‧ first magnet
64‧‧‧第二磁鐵 64‧‧‧second magnet
66‧‧‧第三磁鐵 66‧‧‧ Third magnet
70‧‧‧上簧片 70‧‧‧Upper reed
72‧‧‧下簧片 72‧‧‧Reed
74‧‧‧彈性元件 74‧‧‧Flexible components
80、80’‧‧‧電路基板 80, 80'‧‧‧ circuit substrate
82‧‧‧磁場感測元件 82‧‧‧ Magnetic field sensing components
90‧‧‧驅動板 90‧‧‧Drive board
91‧‧‧開口 91‧‧‧ openings
94‧‧‧第三線圈 94‧‧‧third coil
M、M’‧‧‧攝像模組 M, M’‧‧‧ camera module
O‧‧‧光軸 O‧‧‧ optical axis
第1圖顯示根據本發明一實施例之攝像模組的示意圖。 FIG. 1 is a schematic diagram showing a camera module according to an embodiment of the invention.
第2圖顯示第1圖中之影像擷取單元1的爆炸圖。 Fig. 2 shows an exploded view of the image capturing unit 1 in Fig. 1.
第3圖顯示沿第1圖中A-A線段之剖視圖。 Fig. 3 is a cross-sectional view taken along line A-A of Fig. 1.
第4圖顯示沿第1圖中B-B線段之剖視圖。 Fig. 4 is a cross-sectional view taken along line B-B of Fig. 1.
第5圖顯示兩個影像擷取單元1、2中之磁鐵、線圈以及鏡頭承載座的相對位置關係示意圖。 FIG. 5 is a schematic diagram showing the relative positional relationship between the magnets, the coils, and the lens carrier of the two image capturing units 1, 2.
第6圖顯示兩個影像擷取單元1、2中之磁鐵、線圈、鏡頭承載座以及驅動板的相對位置關係示意圖。 FIG. 6 is a schematic view showing the relative positional relationship between the magnets, the coils, the lens holders and the driving plates of the two image capturing units 1, 2.
第7圖顯示根據本發明另一實施例的影像擷取單元1、2中之磁鐵、線圈、鏡頭承載座以及驅動板的相對位置關係示意圖。 FIG. 7 is a schematic diagram showing the relative positional relationship between the magnet, the coil, the lens carrier and the driving plate in the image capturing units 1, 2 according to another embodiment of the present invention.
第8圖顯示根據本發明另一實施例之攝像模組的示意圖。 Figure 8 is a diagram showing a camera module in accordance with another embodiment of the present invention.
第9圖顯示第8圖中攝像模組之爆炸圖。 Figure 9 shows an exploded view of the camera module in Figure 8.
第10圖顯示第9圖中之六極磁鐵和第一驅動線圈的示意圖。 Fig. 10 is a view showing the six-pole magnet and the first driving coil in Fig. 9.
以下說明本發明實施例之攝像模組。然而,可輕易了解本發明實施例提供許多合適的發明概念而可實施於廣泛的各種特定背景。所揭示的特定實施例僅僅用於說明以特定方法使用本發明,並非用以侷限本發明的範圍。 The camera module of the embodiment of the present invention will be described below. However, it will be readily understood that the embodiments of the present invention are susceptible to many specific embodiments of the invention and can The specific embodiments disclosed are merely illustrative of the invention, and are not intended to limit the scope of the invention.
除非另外定義,在此使用的全部用語(包括技術及科學用語)具有與此篇揭露所屬之一般技藝者所通常理解的相同涵義。能理解的是這些用語,例如在通常使用的字典中 定義的用語,應被解讀成具有一與相關技術及本揭露的背景或上下文一致的意思,而不應以一理想化或過度正式的方式解讀,除非在此特別定義。 Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning meaning It will be understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant art and the context or context of the present disclosure, and should not be in an idealized or overly formal manner. Interpretation, unless specifically defined herein.
請先參閱第1圖,本發明一實施例之攝像模組M包括沿一長軸方向排列的兩個影像擷取單元1、2,其例如可設置於一手持式電子裝置(例如相機、手機或平板電腦等)內以擷取影像。接著請一併參閱第1至4圖,其中第2圖顯示第1圖中影像擷取單元1之爆炸圖,第3圖顯示沿第1圖中A-A線段之剖視圖,及第4圖顯示沿第1圖中B-B線段之剖視圖。由第2圖可以看出,影像擷取單元1主要包括一外殼10、一基座20、一鏡頭承載座30、一第一線圈60、一第二線圈40、一框架50、一第一磁鐵62、至少一第二磁鐵64、一第三磁鐵66、一上簧片70、一下簧片72、複數個彈性元件74、一電路基板80、複數個磁場感測元件82以及一驅動板90。 Please refer to FIG. 1 . The camera module M of the embodiment of the present invention includes two image capturing units 1 and 2 arranged along a long axis direction, which can be disposed, for example, on a handheld electronic device (eg, a camera or a mobile phone). Or tablet, etc.) to capture images. Please refer to Figures 1 to 4 together, where Figure 2 shows the exploded view of the image capture unit 1 in Figure 1, Figure 3 shows the cross-sectional view along the AA line in Figure 1, and Figure 4 shows the 1 is a cross-sectional view of the BB line segment. As can be seen from FIG. 2, the image capturing unit 1 mainly includes a casing 10, a base 20, a lens carrier 30, a first coil 60, a second coil 40, a frame 50, and a first magnet. 62. At least one second magnet 64, a third magnet 66, an upper reed 70, a lower reed 72, a plurality of elastic members 74, a circuit substrate 80, a plurality of magnetic field sensing elements 82, and a driving plate 90.
前述外殼10係與基座20相互結合,用以收容影像擷取單元1中的其他部件,在基座20下方則設有一影像感測元件(例如CCD),其中位在鏡頭承載座30內之一鏡頭(圖未示)可與前述影像感測元件於前述鏡頭之一光軸O方向上進行對焦。又,外殼10及基座20分別形成有開孔12及開孔22,外部光線可經由開孔12進入影像擷取單元1並穿過前述鏡頭,接著光線可經由開孔22離開影像擷取單元1而到達前述影像感測元件。 The housing 10 and the base 20 are coupled to each other for receiving other components in the image capturing unit 1. An image sensing component (for example, a CCD) is disposed under the base 20, and the lens housing 30 is disposed in the lens carrier 30. A lens (not shown) can be focused with the image sensing element in the direction of the optical axis O of the lens. Moreover, the outer casing 10 and the base 20 are respectively formed with an opening 12 and an opening 22, and external light can enter the image capturing unit 1 through the opening 12 and pass through the lens, and then the light can exit the image capturing unit through the opening 22. 1 arrive at the aforementioned image sensing element.
於本實施例中,鏡頭係固定於鏡頭承載座30之貫穿孔32內,第二線圈40則是環繞設置於鏡頭承載座30之外側 表面,其中鏡頭承載座30及其內之鏡頭可透過上簧片70和下簧片72(例如金屬彈片)連接框架50,進而可使鏡頭承載座30及鏡頭活動地設置於框架50內。 In this embodiment, the lens is fixed in the through hole 32 of the lens carrier 30, and the second coil 40 is disposed on the outer surface of the lens carrier 30, wherein the lens carrier 30 and the lens therein are permeable. The reed 70 and the lower reed 72 (e.g., metal domes) are coupled to the frame 50, thereby allowing the lens carrier 30 and the lens to be movably disposed within the frame 50.
如第2圖所示,本實施例中之驅動板90具有C字形結構,其可透過黏合方式固定於電路基板80上,並可與電路基板80電性連接,其中第一磁鐵62係設置於基座20上,並且位於驅動板90之一開口91處。請一併參閱第2~4圖,前述第一線圈60係固定於框架50上的一個與Y軸方向平行之側壁52A,且對應於前述第一磁鐵62;此外,兩個第二磁鐵64係分別固定於框架50上的兩個與X軸方向平行之側壁52B,且對應於鏡頭承載座30上的第二線圈40以及設置在驅動板90內部的兩個第三線圈94(第3圖),而第三磁鐵66則是固定於框架50上的另一個與Y軸方向平行之側壁52C,且對應於設置在驅動板90內部的另一個第三線圈94(第4圖)。 As shown in FIG. 2, the driving board 90 of the present embodiment has a C-shaped structure, which is fixed to the circuit board 80 through a bonding manner and can be electrically connected to the circuit board 80. The first magnet 62 is disposed on the circuit board 80. The base 20 is located at one of the openings 91 of the drive plate 90. Referring to FIGS. 2 to 4 together, the first coil 60 is fixed to a side wall 52A parallel to the Y-axis direction of the frame 50, and corresponds to the first magnet 62; further, two second magnets 64 are attached. Two side walls 52B parallel to the X-axis direction are respectively fixed to the frame 50, and correspond to the second coil 40 on the lens holder 30 and the two third coils 94 disposed inside the driving board 90 (Fig. 3) The third magnet 66 is another side wall 52C that is fixed to the frame 50 and is parallel to the Y-axis direction, and corresponds to another third coil 94 (FIG. 4) provided inside the driving board 90.
藉由上述設計,當鏡頭承載座30上的第二線圈40被施加一電流時,其可與固定於框架50上之第二磁鐵64產生磁力,以迫使鏡頭承載座30和前述鏡頭相對於框架50沿著鏡頭之光軸O方向(Z軸方向)移動,進而可執行鏡頭與影像感測元件之間的自動對焦(Auto focusing)。 With the above design, when the second coil 40 on the lens holder 30 is applied with a current, it can generate a magnetic force with the second magnet 64 fixed to the frame 50 to force the lens holder 30 and the aforementioned lens relative to the frame. 50 moves along the optical axis O direction (Z-axis direction) of the lens, thereby performing autofocus between the lens and the image sensing element.
需特別說明的是,第2圖中之四個彈性元件74(例如金屬桿件)係連接框架50與基座20,藉以使框架50、鏡頭承載座30和前述鏡頭可活動地設置於基座20之上。此外,前述電路基板80例如為一C字形的可撓性印刷電路板,其可透過黏合之方式固定於基座20上,並與前述彈性元件74以及設置在 影像擷取單元1外部之一控制單元(圖未示)電性連接;藉此,控制單元可透過電路基板80以及上簧片70電性連接至鏡頭承載座30上的第二線圈40,進而可施加電流到第二線圈40,以使第二線圈40和兩個第二磁鐵64之間產生磁力來驅動鏡頭承載座30和前述鏡頭相對於框架50沿著鏡頭之光軸O方向(Z軸方向)產生位移。 It should be particularly noted that the four elastic members 74 (for example, metal rods) in FIG. 2 are connected to the frame 50 and the base 20, so that the frame 50, the lens holder 30 and the aforementioned lens are movably disposed on the base. Above 20. In addition, the circuit board 80 is, for example, a C-shaped flexible printed circuit board that is fixed to the susceptor 20 by adhesive bonding, and is controlled by the elastic member 74 and one of the outside of the image capturing unit 1. The unit (not shown) is electrically connected; thereby, the control unit can be electrically connected to the second coil 40 on the lens carrier 30 through the circuit substrate 80 and the upper reed 70, thereby applying current to the second coil 40. The lens carrier 30 is driven to generate a magnetic force between the second coil 40 and the two second magnets 64, and the lens is displaced relative to the frame 50 in the optical axis O direction (Z-axis direction) of the lens.
於本實施例中,當框架50受到外力衝擊而使鏡頭相對於基座20產生水平方向(平行於XY平面)之偏移時,可透過設置於基座20上的磁場感測元件82感測框架50相對於基座20的水平偏移量,並可分別對框架50上的第一線圈60以及驅動板90內的第三線圈64施加電流,以使第一、第二、第三磁鐵62、64、66和第一、第三線圈60、64之間產生磁力,進而驅動框架50、鏡頭承載座30和位於其內的鏡頭沿著水平方向移動回到預設位置,進而可達到光學防手震(Optical image stabilization)的效果。舉例而言,前述磁場感測元件82例如為霍爾感測器(Hall effect sensor)、磁敏電阻感測器(MR sensor)、或磁通量感測器(Fluxgate)等。 In the present embodiment, when the frame 50 is subjected to an external force to cause the lens to be displaced in the horizontal direction (parallel to the XY plane) with respect to the susceptor 20, the magnetic field sensing element 82 disposed on the susceptor 20 can be sensed. The horizontal offset of the frame 50 relative to the base 20 and current can be applied to the first coil 60 on the frame 50 and the third coil 64 in the drive plate 90, respectively, to cause the first, second, and third magnets 62. , 64, 66 and the first and third coils 60, 64 generate a magnetic force, thereby driving the frame 50, the lens carrier 30 and the lens located therein to move back to the preset position in the horizontal direction, thereby achieving optical protection The effect of optical image stabilization. For example, the magnetic field sensing element 82 is, for example, a Hall effect sensor, a MR sensor, or a Fluxgate.
接著請一併參閱第1、5、6圖,前述影像擷取單元2中的磁鐵和線圈可採取和影像擷取單元1相同或類似的配置方式。如第5、6圖所示,在影像擷取單元1、2中的第一線圈60以及第一磁鐵62係設置在彼此相鄰的兩側,由於兩個第一磁鐵62皆是固定於第一線圈60下方的基座20上,因此影像擷取單元1、2中的兩個第一磁鐵62之間不會產生相對運動,所以能有效地避免兩個第一磁鐵62因相互靠近所造成彼此之 間的磁干擾。 Please refer to the figures 1, 5, and 6 together. The magnets and coils in the image capturing unit 2 can adopt the same or similar configuration as the image capturing unit 1. As shown in FIGS. 5 and 6, the first coil 60 and the first magnet 62 in the image capturing units 1, 2 are disposed on both sides adjacent to each other, since the two first magnets 62 are fixed to the first A pedestal 20 under the coil 60, so that no relative movement occurs between the two first magnets 62 in the image capturing units 1, 2, so that the two first magnets 62 can be effectively prevented from being close to each other. Magnetic interference between each other.
需特別說明的是,前述第一線圈60以及第三磁鐵66分別具有一底面,面朝第一磁鐵62以及第三線圈94,其中該些底面在Z軸方向上具有相同高度且相互對齊。同理,前述第一磁鐵62以及第三線圈94分別具有一頂面,面朝第一線圈60以及第三磁鐵66,其中該些頂面在Z軸方向上具有相同高度且相互對齊。此外,從垂直於鏡頭之光軸O的水平方向(平行於XY平面)觀察,前述第一線圈60以及第二磁鐵64在Z軸方向(高度方向)上至少部分重疊。 It should be noted that the first coil 60 and the third magnet 66 respectively have a bottom surface facing the first magnet 62 and the third coil 94, wherein the bottom surfaces have the same height in the Z-axis direction and are aligned with each other. Similarly, the first magnet 62 and the third coil 94 respectively have a top surface facing the first coil 60 and the third magnet 66, wherein the top surfaces have the same height in the Z-axis direction and are aligned with each other. Further, the first coil 60 and the second magnet 64 at least partially overlap in the Z-axis direction (height direction) as viewed in the horizontal direction (parallel to the XY plane) perpendicular to the optical axis O of the lens.
於另一實施例中,如第7圖所示,亦可僅將影像擷取單元1中的第一磁鐵62設置在第一線圈60的下方,而將影像擷取單元2中的第一磁鐵62設置在第一線圈60上方的框架50上,影像擷取單元2中的第一線圈60則和第三線圈94一樣是嵌設於基座20上方的驅動板90內,藉此可增加兩個第一磁鐵62彼此之間的距離以降低磁干擾。應了解的是,前述各實施例中之第一、第二、第三磁鐵62、64、66皆可採用多極磁鐵(multipolar magnet),例如第6、7圖中所示之四極磁鐵(4-pole magnet),藉此能更進一步地降低各個磁鐵之間的磁干擾,此外使用多極磁鐵尚可兼具有提升電磁驅動力、減少攝像模組的體積、以及降低製作成本等優點。或者,前述第三磁鐵60亦可和第三線圈94位置調換,意即可將第三磁鐵60設置於基座20上,並將第三線圈94設置於框架50上,如此同樣可產生磁力迫使框架50和鏡頭承載座30相對於基座20移動,以達到光學防手震的效果。 In another embodiment, as shown in FIG. 7, only the first magnet 62 in the image capturing unit 1 may be disposed under the first coil 60, and the first magnet in the image capturing unit 2 may be disposed. 62 is disposed on the frame 50 above the first coil 60. The first coil 60 in the image capturing unit 2 is embedded in the driving board 90 above the base 20 like the third coil 94, thereby adding two The distance between the first magnets 62 is to reduce magnetic interference. It should be understood that the first, second, and third magnets 62, 64, and 66 in the foregoing embodiments may employ multipolar magnets, such as the quadrupole magnets shown in FIGS. -pole magnet), thereby further reducing the magnetic interference between the magnets, and the use of multi-pole magnets can also have the advantages of increasing the electromagnetic driving force, reducing the size of the camera module, and reducing the manufacturing cost. Alternatively, the third magnet 60 may be exchanged with the third coil 94. The third magnet 60 may be disposed on the base 20 and the third coil 94 may be disposed on the frame 50. The frame 50 and the lens holder 30 are moved relative to the base 20 to achieve an optical anti-shake effect.
如前所述,當第一線圈60被施加電流時,第一磁鐵62與第一線圈60之間可產生磁力迫使框架50和鏡頭承載座30相對於基座20沿著平行於XY平面之方向(第一方向)移動,藉以達到光學防手震的效果;同理,當第三線圈94被施加電流時,第三線圈94和與其對應之第三磁鐵66之間亦可產生磁力迫使框架50和鏡頭承載座30相對於基座20移動沿著平行於XY平面之方向(第一方向)移動,藉以達到光學防手震的效果。此外,當第二線圈40被施加電流時,第二磁鐵64與第二線圈40之間則可產生磁力迫使鏡頭承載座30以及鏡頭相對於框架50沿著平行於光軸O之方向(第二方向)移動,以達到自動對焦的效果。 As previously mentioned, when a current is applied to the first coil 60, a magnetic force can be generated between the first magnet 62 and the first coil 60 forcing the frame 50 and the lens carrier 30 relative to the base 20 in a direction parallel to the XY plane. (first direction) moving, thereby achieving the effect of optical anti-shake; similarly, when the third coil 94 is applied with current, a magnetic force may be generated between the third coil 94 and the corresponding third magnet 66 to force the frame 50 And the lens carrier 30 moves relative to the susceptor 20 in a direction parallel to the XY plane (first direction), thereby achieving an optical anti-shake effect. In addition, when a current is applied to the second coil 40, a magnetic force is generated between the second magnet 64 and the second coil 40 to force the lens holder 30 and the lens relative to the frame 50 in a direction parallel to the optical axis O (second Direction) Move to achieve the effect of autofocus.
接著請一併參閱第8及9圖,其中第8圖顯示本發明另一實施例之攝像模組M’之示意圖,第9圖則顯示第8圖中之攝像模組M’的爆炸圖。由第8及9圖中可以看出,本實施例之攝像模組M’包括兩個影像擷取單元1’、2’,其與前述影像擷取單元1、2的不同之處在於:在本實施例之影像擷取單元1’、2’中,成對之外殼10’、基座20’、第一磁鐵62’、電路基板80’以及驅動板90’皆是以一體成形的方式製作而整合成為單一構件。 Referring to Figures 8 and 9, together, Figure 8 shows a schematic diagram of a camera module M' according to another embodiment of the present invention, and Figure 9 shows an exploded view of the camera module M' of Figure 8. It can be seen from the figures 8 and 9 that the camera module M' of the embodiment includes two image capturing units 1', 2' which are different from the image capturing units 1, 2 in that: In the image capturing unit 1', 2' of the embodiment, the pair of the outer casing 10', the base 20', the first magnet 62', the circuit board 80', and the driving board 90' are all integrally formed. And integration into a single component.
舉例而言,前述影像擷取單元1’、2’中的兩個第一磁鐵62’可以透過一體成形的方式製作而整合成為一六極磁鐵(6-pole magnet),而前述影像擷取單元1’、2’中的兩個底座20’亦可透過一體成形的方式製作而整合成為單一構件,其中在該單一構件上可形成用以收容前述第一磁鐵62’之凹槽24, 如此一來不僅可有助提升組裝的便利性,且能大幅降低組裝成本並有利於攝像模組M’的微型化。 For example, the two first magnets 62 ′ in the image capturing units 1 ′ and 2 ′ can be integrally formed into a six-pole magnet, and the image capturing unit is integrated. The two bases 20' of 1', 2' can also be integrally formed into a single member, wherein a recess 24 for receiving the first magnet 62' can be formed on the single member, such that Not only can it improve the convenience of assembly, but also greatly reduce the assembly cost and facilitate the miniaturization of the camera module M'.
如第10圖所示,前述影像擷取單元1’、2’中的兩個第一磁鐵62’可透過一體成形的方式製作而整合成為一六極磁鐵(6-pole Magnet),且同時對應於影像擷取單元1’、2’中的兩個第一線圈60,如此一來可避免兩者之間產生磁干擾的問題。應了解的是,當第10圖中的兩個第一線圈60被施加電流時,此六極磁鐵與上方的兩個第一線圈60之間可分別產生磁力,以迫使影像擷取單元1’、2’中的框架50和鏡頭承載座30分別相對於其基座20’沿著水平方向移動,進而可使兩個影像擷取單元1’、2’皆能達到光學防手震的效果,且可同時能避免兩個影像擷取單元1’、2’之間產生磁干擾的問題。 As shown in FIG. 10, the two first magnets 62' of the image capturing units 1', 2' can be integrally formed into a six-pole magnet, and simultaneously The two first coils 60 in the image capturing units 1', 2' can avoid the problem of magnetic interference between the two. It should be understood that when the two first coils 60 in FIG. 10 are applied with current, a magnetic force may be generated between the six-pole magnet and the upper two first coils 60 to force the image capturing unit 1' The frame 50 and the lens carrier 30 in 2' are respectively moved in the horizontal direction with respect to the base 20' thereof, so that the two image capturing units 1', 2' can achieve the optical anti-shake effect. Moreover, the problem of magnetic interference between the two image capturing units 1', 2' can be avoided at the same time.
綜上所述,本發明提供一種攝像模組,其中該攝像模組包括至少一個影像擷取單元,該影像擷取單元中之第一磁鐵係設置於固定的基座上,第一線圈則是設置於可相對於基座移動的框架上,藉此可避免第一磁鐵與其他磁性元件之間產生磁干擾。於一實施例中,前述攝像模組可更包括另一個影像擷取單元(照相單元),其中藉由將影像擷取單元內的第一磁鐵和第一線圈分別設置於固定的基座和可相對於基座移動的框架上,並使第一磁鐵以及第一線圈設置於影像擷取單元中鄰近於另一個影像擷取單元(照相單元)之一側,不僅可避免該影像擷取單元與另一影像擷取單元(照相單元)之間產生磁干擾的問題,同時能有助於整個攝像模組的微型化。 In summary, the present invention provides a camera module, wherein the camera module includes at least one image capturing unit, wherein the first magnet in the image capturing unit is disposed on a fixed base, and the first coil is It is disposed on a frame movable relative to the base, thereby avoiding magnetic interference between the first magnet and other magnetic elements. In an embodiment, the camera module may further include another image capturing unit (camera unit), wherein the first magnet and the first coil in the image capturing unit are respectively disposed on the fixed base and The first magnet and the first coil are disposed on one side of the image capturing unit adjacent to the other image capturing unit (the camera unit), and the image capturing unit and the image capturing unit are avoided. The problem of magnetic interference between the other image capturing units (camera units) can also contribute to the miniaturization of the entire camera module.
雖然本發明的實施例及其優點已揭露如上,但應 該瞭解的是,任何所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作更動、替代與潤飾。此外,本發明之保護範圍並未侷限於說明書內所述特定實施例中的製程、機器、製造、物質組成、裝置、方法及步驟,任何所屬技術領域中具有通常知識者可從本發明揭示內容中理解現行或未來所發展出的製程、機器、製造、物質組成、裝置、方法及步驟,只要可以在此處所述實施例中實施大抵相同功能或獲得大抵相同結果皆可根據本發明使用。因此,本發明之保護範圍包括上述製程、機器、製造、物質組成、裝置、方法及步驟。另外,每一申請專利範圍構成個別的實施例,且本發明之保護範圍也包括各個申請專利範圍及實施例的組合。 While the embodiments of the present invention and its advantages are disclosed hereinabove, it is understood that those skilled in the art can make modifications, substitutions and refinements without departing from the spirit and scope of the invention. In addition, the scope of the present invention is not limited to the processes, machines, manufacture, compositions, devices, methods, and steps in the specific embodiments described in the specification. Any one of ordinary skill in the art can. The processes, machines, fabrications, compositions, devices, methods, and procedures that are presently or in the future are understood to be used in accordance with the present invention as long as they can perform substantially the same function or achieve substantially the same results in the embodiments described herein. Accordingly, the scope of the invention includes the above-described processes, machines, manufactures, compositions, devices, methods, and steps. In addition, the scope of each of the claims constitutes an individual embodiment, and the scope of the invention also includes the combination of the scope of the application and the embodiments.
雖然本發明以前述數個較佳實施例揭露如上,然其並非用以限定本發明。本發明所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可做些許之更動與潤飾。因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。此外,每個申請專利範圍建構成一獨立的實施例,且各種申請專利範圍及實施例之組合皆介於本發明之範圍內。 While the invention has been described above in terms of several preferred embodiments, it is not intended to limit the invention. Those skilled in the art having the ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. In addition, each patent application scope is constructed as a separate embodiment, and various combinations of patents and combinations of embodiments are within the scope of the invention.
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CN201710344412.0A CN107404607B (en) | 2016-05-20 | 2017-05-16 | Camera module and image capturing unit thereof |
US15/926,289 US10281801B2 (en) | 2016-05-20 | 2018-03-20 | Optical member driving system |
US16/363,351 US10649314B2 (en) | 2016-05-20 | 2019-03-25 | Optical member driving system |
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TWM504958U (en) * | 2014-12-02 | 2015-07-11 | Largan Precision Co Ltd | Lens actuating module |
CN204807890U (en) * | 2015-06-25 | 2015-11-25 | 南昌欧菲光电技术有限公司 | Two camera modules |
CN205210489U (en) * | 2015-10-30 | 2016-05-04 | 金龙机电股份有限公司东莞分公司 | Image stabilising arrangement |
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TW201812425A (en) | 2018-04-01 |
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