• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    CAMERA MODULE. A camera module includes a lens barrel that includes at least one lens group; a movable frame that includes the lens cylinder and moves in an optical axis direction and in a first direction and in a second direction which are perpendicular to the optical axis direction; a fixed frame that movably supports the movable frame and provides the movable frame with a driving force in the optical axis direction, a driving force in the first direction, and a driving force in the second direction; and a base that fixes the fixed frame and includes an image sensor that is spaced from the at least one group of lenses in the optical axis direction.
    公开号:BR112015029406B1
    申请号:R112015029406-5
    申请日:2014-08-05
    公开日:2022-02-01
    发明作者:Young-jae Hwang；Kwang-seok Byon；Seung-Hwan Lee；Bong-su Jung
    申请人:Samsung Electronics Co., Ltd；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    [0001] One or more modalities refer to a camera module, and more specifically, to a camera module capable of performing optical image stabilization (OIS) and Auto Echo (AF). FUNDAMENTALS OF THE TECHNIQUE
    [0002] A digital camera is a device capable of storing an image of an object as a digital file including a portrait or a video image. Examples of a digital camera include a digital still camera (DSC), a digital video camera (DVD), and a digital camera module mounted on a mobile phone.
    [0003] Consumer demand for high quality still images and/or videos has increased considerably along with the use of digital photography devices such as DSCs and/or DVCs. Specifically, the demand for a camera module having an Auto Focus (AF) function to automatically adjust focus and an optical image stabilization (OIS) function to prevent a decrease in image sharpness due to flickering of the user's hand has increased.
    [0004] Such a camera module may include a single-axis drive unit that moves a lens barrel along an optical axis to perform an Auto Focus function and a two-axis drive unit that moves the lens barrel in a direction perpendicular to the optical axis. In other words, the camera module can include drive units to move the lens barrel along three axes. For this purpose, a printed circuit board is used to supply current from the outside to the drive units.
    [0005] When at least one of the drive units connected to the printed circuit board is moved together with the lens cylinder, the printed circuit board connected to the mobile drive unit is folded or unfolded. In this process, a predetermined voltage variation can be generated on the printed circuit board. Specifically, as the size of the camera module has become compact, the variation in voltage can obstruct a movement of the drive unit connected to the printed circuit board, degrading the quality of the camera module. DISCLOSURE OF THE INVENTION TECHNICAL PROBLEM
    [0006] One or more embodiments disclosed herein include a camera module capable of performing an Auto Focus (AF) function and an Optical Image Stabilization (OIS) function, whereby a lens can be accurately moved, and capable of reduce or prevent a change in voltage on a printed circuit board.
    [0007] Additional aspects will be presented in part in the following description and, in part, will be evident from the description, or can be learned by practicing the presented modalities. SOLUTION TO 0 PROBLEM
    [0008] According to one or more embodiments, a camera module includes: a lens barrel that includes at least one group of lenses; a movable frame that mounts the lens cylinder and travels in an optical axis direction, and in a first direction and in a second direction that is perpendicular to the optical axis direction; a fixed frame that movably supports the movable frame and provides the movable frame with a driving force in the optical axis direction, a driving force in the first direction, and a driving force in the second direction; and a base that fixes the fixed frame and includes an image sensor that is spaced from the at least one group of lenses in the optical axis direction.
    [0009] The fixed frame may include a first drive coil for moving the moving frame in the optical axis direction, a second drive coil for moving the moving frame in the first direction, and third drive coils for moving the moving frame in the second direction, wherein the movable frame includes first, second and third magnets corresponding respectively to the first, second and third drive coil.
    [00010] The camera module may also include a printed circuit board that is electrically connected to the fixed frame.
    [00011] The printed circuit board can supply current in the first, second and third drive coil to move the moving frame.
    [00012] The voltage of the printed circuit board can remain constant while the moving frame is moving.
    [00013] The first, second and third drive coils can be separated respectively from the first, second and third magnet in a direction perpendicular to the optical axis direction.
    [00014] The first, second and third drive coils can be arranged on the side walls of the fixed frame.
    [00015] The fixed frame may include a hole into which at least one of the first, second and third drive coils is inserted.
    [00016] The movable frame may include a slot portion into which at least one of the first, second and third magnets is inserted.
    [00017] The moving frame may include: a first moving frame which is movably supported by the fixed frame in the optical axis direction; and a second movable frame which is movably supported by the first movable frame in the first and second directions.
    [00018] Several spherical bearings can be arranged between the fixed frame and the first movable frame, wherein a guide groove that guides the plurality of spherical bearings in the optical axis direction is formed in at least one of the fixed frame and the first frame mobile.
    [00019] Several spherical bearings can be arranged between the first movable frame and the second movable frame, wherein a guide groove guiding the plurality of spherical bearings in the first or second direction is formed in at least one of the first movable frame and the second moving frame.
    [00020] The second movable frame may include: a first secondary movable frame which is moved in the first direction, wherein the second magnet is disposed on one side of the first secondary movable frame; and a second secondary movable frame which is moved in the second direction, wherein third magnets are disposed on two sides of the second secondary movable frame.
    [00021] The second secondary moving frame may be movably supported by the first secondary moving frame in the second direction, and the first secondary moving frame may be movably supported by the first secondary moving frame in the first direction.
    [00022] Several spherical bearings can be arranged between the first secondary movable frame and the second secondary movable frame, wherein a guide groove guiding the plurality of spherical bearings in the second axis direction is formed in at least one of the first movable frame secondary and the second secondary moving frame.
    [00023] Several spherical bearings may be arranged between the first secondary movable frame and the first movable frame, wherein a guide groove guiding the plurality of spherical bearings in the first direction is formed in at least one of the first secondary movable frame and the first moving frame.
    [00024] The first secondary moving frame may include an offset portion to offset the third magnets. The bypass portion and the third magnets can be separated from each other.
    [00025] The first movable frame may include a fork which is arranged to match the third magnets to prevent the second movable frame from detaching therefrom.
    [00026] The fixed frame may include first, second and third sensors which correspond to the first, second and third magnets respectively.
    [00027] The first, second and third sensors can be magnetic sensors.
    [00028] The first sensor can detect a position of the first magnet in the optical axis direction.
    [00029] The second sensor can detect a position of the second magnet in the first direction.
    [00030] Third sensors can detect a position of the third magnet in the second direction.
    [00031] The third magnet can be arranged on two sides in the first direction of the second moving frame, wherein the third sensor is arranged on two sides in the first direction of the fixed frame.
    [00032] A moving frame position in the second direction can be detected based on a first detection signal detected by one of the third sensors and a second detection signal detected by another of the third sensors.
    [00033] A moving frame position in the second direction can be detected based on a third detection signal which is a sum of the first detection signal and the second detection signal.
    [00034] A sum of a distance between one of the third sensors and one of the third magnets in the first direction and a distance between the other of the third sensors and the other of the third magnets can be constant. ADVANTAGEOUS EFFECTS OF THE INVENTION
    [00035] According to the camera module of the modalities described above, a printed circuit board is connected to a fixed frame for driving three axes, thus providing an Auto Focus (AF) function and an Optical Image Stabilization function. (OIS) whereby a lens can be accurately moved and a voltage variation on the printed circuit board can be prevented or minimized. BRIEF DESCRIPTION OF THE DRAWINGS
    [00036] These and/or other aspects will become evident and more easily considered from the following description of the modalities, taken together with the accompanying drawings in which: Figure 1 is an assembled perspective view of a camera module in accordance with with one embodiment; Figure 2 is an exploded perspective view illustrating a camera module of Figure 1 according to one embodiment; Figure 3 is an exploded perspective view of a moving frame of Figure 2 according to one embodiment Figure 4 is an exploded perspective view of a fixed frame of Figure 2, in accordance with one embodiment; Figure 5 is a conceptual block diagram illustrating a first magnet and a first sensor, in accordance with one embodiment; Figure 6 is a graph showing a magnetic flux density of a first magnet in an optical axis direction, according to one embodiment; Figure 7 is a graph showing a magnetic flux density detected when a first magnet is moved. in an optical axis direction while the first magnet and a first sensor are spaced apart in a second direction by a distance of 0.6 mm, according to one embodiment; Figure 8 is a graph showing a magnetic flux density detected by a third magnetic sensor when the third magnet is moved in the second direction, when a distance between the third magnet and the third sensor is varied in the first direction, according to one embodiment; Figure 9 is a plan view of the camera module of Figure 2 illustrating a second sub-movable frame, according to an embodiment; Figures 10a and 10b are plan views of the camera module illustrating a second secondary moving frame of Figure 9 moved in a first direction, in accordance with various embodiments; Figure 11 is a graph showing a magnetic flux density detected by a third sensor Figure 10a according to a position of the third magnet in a second direction, and Figure 11b is a graph showing a magnetic flux density detected by the third sensor of Figure 10b according to a position of the third magnet in the second direction; Figure 12 is a graph showing a third magnetic flux density which is a sum of the first and second magnetic flux density detected by the third sensors illustrated in Figures 11a and 11b, according to a position of a second secondary moving frame in a second direction. , according to one embodiment; Figure 13 is a cross-sectional perspective view of the camera module of Figure 1 cut along a line XIII- XIII' and Figure 14 is a cross-sectional perspective view of the camera module of Figure 1 cut along a line XIV-XIV'. MODE FOR THE INVENTION
    [00037] Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings, in which like reference numerals refer throughout to like elements. In this regard, the modalities in this document may take different forms and should not be considered to be limited to the descriptions presented herein. Accordingly, the embodiments are merely described below, with reference to the figures, to explain aspects of the present description. As used herein, the term "and/or" includes any and all combinations of one or more of the associated related items. Expressions such as "at least one of", when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list.
    [00038] It will be understood that although the terms "first", "second", "third", etc. can be used here to describe various elements, these elements should not be limited by these terms. The terms are used only to distinguish one element from another.
    [00039] Figure 1 is an assembly view of a camera module according to an embodiment.
    [00040] Referring to Figure 1, the camera module may include a lens barrel 10 that includes at least one lens group 11, a movable frame 200 that mounts (or includes) the lens barrel 10 to move the lens barrel 10 lens 10 in an optical axis direction (z axis direction) and in first and second directions (x axis and y axis directions) that are perpendicular to the optical axis direction (z axis), a fixed frame 100 that holds movable the movable frame 200, and a printed circuit board 300 that supplies a current to move the movable frame 200. The second direction (y-axis direction) may be orthogonal to the first direction (x-axis direction), but is not limited to this.
    [00041] The movable frame 200 can be driven along the optical axis direction (z axis direction), the first direction (x axis direction), and the second direction (y axis direction). Consequently, an Auto Focus (AF) function of automatically adjusting a focus on an image sensor 21 (see Figure 11) and an optical image stabilizer (OIS) function of preventing a decrease in image quality due to vibration such like hand flutter, can be performed. The movable frame 200 performs the Auto Focus function by moving the lens barrel 10 along the optical axis direction (z-axis direction), and also performing the OIS function by moving the lens barrel 10 so two-dimensional along directions (x-axis direction and y-axis direction) that are perpendicular to the optical axis direction (z-axis).
    [00042] The printed circuit board 300 provides the fixed frame 100 with a current to drive the three axes of the moving frame 200. The printed circuit board 300 can drive the mobile frame 200 along three axes by providing a current to the frame 100. The printed circuit board 300 may be a flexible printed circuit board.
    [00043] If the printed circuit board 300 supplies a current to the movable frame 200 and not the fixed frame 100, the printed circuit board 300 can be folded or unfolded while the movable frame 200 is moved. Consequently, the printed circuit board 300 may be damaged or a voltage applied to the printed circuit board 300 may vary. Voltage variation can hinder accurate movement of movable frame 200.
    [00044] However, according to the current embodiment, the printed circuit board 300 provides a current not to the moving frame 200, but to the fixed frame 100, thus preventing the folding or unfolding action of the printed circuit board 300 due to to a movement of the moving frame 200. As there is no voltage variation on the printed circuit board 300, the moving frame 200 can be moved exactly. Next, a structure will be described in detail in which an electrical connection is provided not to the moving frame 200, but to the fixed frame 100 via a printed circuit board 300 of the camera module.
    [00045] Figure 2 is an exploded perspective view illustrating the camera module of Figure 1. Figure 3 is an exploded perspective view of the moving frame 200 of Figure 2, according to one embodiment. Figure 4 is an exploded perspective view of the fixed frame 100 of Figure 2, according to one embodiment.
    [00046] Referring to Figures 2 to 4, the camera module includes a base 20, the fixed frame 100 attached to the base 20, a first movable frame 210 which is movably supported by the fixed frame 100 in an optical axis direction (z-axis direction), a second movable frame 220 which is movably supported by the first movable frame 210 in a direction perpendicular to the optical axis direction, a cover 30 covering an upper portion of the second movable frame 220, and a printed circuit board 300 which is disposed on a side portion of fixed frame 100.
    [00047] The base 20 is arranged on the fixed frame 100, and an image sensor 21 can be included in a central portion of the base 20. The lens barrel 10 can be spaced from the image sensor 21 in the optical axis direction ( z axis direction).
    [00048] Fixed frame 100 is attached to base 20. As fixed frame 100 is attached to base 20, the relative positions of fixed frame 100 and base 20 do not vary with respect to each other. In addition, the fixed frame 100 can be attached directly to the base 20 as illustrated in Figures 2 to 4, or the fixed frame 100 can be attached indirectly to the base 20 through another member.
    [00049] The fixed frame 100 movably supports the movable frame 200, and provides a driving force to the movable frame 200 in the optical axis direction (z-axis direction) and in a first direction (x-axis direction) and in a second direction (y-axis direction).
    [00050] Fixed frame 100 may include first to fourth side walls 101, 102, 103 and 104 that surround the side portions of movable frame 200. The four side walls 101, 102, 103 and 104 of fixed frame 100 respectively include first and second drive coils 110 and 120 and third drive coils 130a and 130b. For example, the first drive coil 110 for moving the first moving frame 210 in the optical axis direction (z-axis direction) is included in a hole 101a of the first side wall 101, the second drive coil 120 for moving the second frame movable 220 in the first direction (x-axis direction) is included in a hole 103a of the third side wall 103, and third drive coils 130a and 130b for moving the second movable frame 220 in the second direction (y-axis direction) are included. in the holes 102a and 104a of the second and fourth side walls 102 and 104. By including the third drive coils 130a and 130b in the second and fourth side walls 102 and 104, the second movable frame 220 can be stably moved in the second direction ( y-axis direction). The first and second drive coils 110 and 120 and the third drive coils 130a and 130b receive a current from the printed circuit board 300 to move the first and second moving frames 210 and 220. The first and second moving frames 210 and 220, are arranged within the fixed frame 100.
    [00051] The first moving frame 210 is moved in the fixed frame 100 in the optical axis direction (z axis direction). A first magnet 211 may be disposed on the first movable frame 210 to correspond to the first drive coil 110. The first magnet 211 includes an N-pole and an S-pole arranged along the optical axis direction (z-axis direction). The first magnet 211 may be a permanent magnet that generates a magnetic force without using an additional power supply.
    [00052] The first movable frame 210 can be movably supported by the fixed frame 100 in the optical axis direction (z axis direction). Several spherical bearings B1 may be arranged between the first movable frame 210 and the fixed frame 100. A guide groove 213 which guides the spherical bearings B1 to be moved along the optical axis direction (z-axis direction) may be formed in at least one of the first movable frame 210 and the second fixed frame 100. The guide groove 213 is extended in the optical axis direction (z axis direction), and can be used to remove a force that is applied to the spherical bearings B1 in direction other than the optical axis direction (z axis direction). Consequently, the first moving frame 210 can be accurately moved in the optical axis direction (z axis direction).
    [00053] The first moving frame 210 may have an L-shaped cross section. The first moving frame 210 includes a first region 210a which is parallel to the optical axis direction (z-axis direction) and a second region 210b which is perpendicular to the optical axis direction (z axis direction). The first magnet 211 and a groove portion 212 into which the first magnet 211 is to be inserted may be formed in the first region 210a. A second region 210b movably supports the second movable frame 220 in a direction perpendicular to an optical axis. In the second region 210b, a fork 215 to prevent detachment of the second moving frame 220 therefrom may be included.
    [00054] The second movable frame 220 is moved in a direction perpendicular to the optical axis in the fixed frame 100. For example, the second movable frame 220 may be movably held in the first movable frame 210 in a direction perpendicular to the optical axis. The second movable frame 220 may include a mounting portion I on which the lens barrel 10 may be mounted; and second magnets 231 and third magnets 241a and 241b disposed around a circumference of the mounting portion I to correspond respectively to second drive coils 120 and third drive coils 130a and 130b. The second magnet 231 includes an N-pole and an S-pole exposed in the first direction (x-axis direction) perpendicular to the optical axis. The third magnets 241a and 241b individually include an N-pole and an S-pole disposed in the second direction (x-axis direction) perpendicular to the optical axis. The N-pole and S-pole arrangement directions of the second magnets 231 and third magnets 241a and 241b may be perpendicular to the N-pole and S-pole arrangement direction of the first magnet 211. According to this arrangement , the first and second magnets 211 and 231 and third magnets 241a and 241b can be disposed on a side portion of the movable frame 200, and can move the first and second movable frames 210 and 220 along three axes. The second magnet 231 and the third magnets 241a and 241b may individually be a permanent magnet that generates a magnetic force without using an additional power supply.
    [00055] The second moving frame 220 may include a first secondary moving frame 230 and a second secondary moving frame 240. The first secondary moving frame 230 may be movably supported by the first moving frame 210 in the first direction (x-axis direction) . Several spherical bearings B2 may be arranged between the first secondary movable frame 230 and the first movable frame 210. A guide groove 214 which guides the spherical bearings B2 for movement in the first direction (x direction) may be formed in at least one of the first secondary movable frame 230 and first movable frame 210. Guide groove 214 is extended in the first direction (x-axis direction), and can remove a force that is applied to spherical bearings B1 in a direction other than the first direction (x-direction) . Consequently, the first secondary moving frame 230 can be accurately moved along the first direction (x direction). A slot portion 232 into which the second magnet 231 is inserted is formed in the first secondary movable frame 230, and an offset portion 230a which prevents interference of the first secondary movable frame 230 with the third magnets 241a and 241b may also be formed in the first secondary movable frame 230. When the third magnets 241a and 241b are moved in the second direction (y-axis direction), the offset portion 230a may be spaced from the third magnets 241a and 241b so as not to obstruct a movement of the third magnets 241a and 241b. For example, if the third magnets 241a and 241b are set to move by 0.2 mm in the second direction (y-axis direction), a distance between the offset portion 230a and the third magnets 241a and 241b can be approximately 0 .4 mm.
    [00056] The second subframe movable 240 can be movably supported by the first movable subframe 230 in the second direction (y-axis direction). Several spherical bearings B3 may be arranged between the second secondary movable frame 240 and the first secondary movable frame 230. A guide groove 233 which guides the spherical bearings B3 for displacement in the second direction (y-axis direction) may be formed in at least one of the second secondary movable frame 240 and first sub movable frame 230. The guide groove 233 is extended in the second direction (y-axis direction), and can remove a force that is applied to the spherical bearings B1 in a direction other than the second direction. (y-axis direction). Consequently, the second secondary movable frame 240 can be accurately moved in the second direction (y-axis direction). A slot portion 242 into which the third magnets 241a and 241b are to be inserted may be formed in the second secondary movable frame 240.
    [00057] The fixed frame 100 is electrically connected to the printed circuit board 300. Consequently, the first, second and third drive coils 110, 120, 130a and 130b included in the fixed frame 100 receive a current to move the first and second frames mobile 210 and 220.
    [00058] When a current is applied to the first and second coils 110 and 120 and the third drive coils 130a, 130b, the first and second magnets 211 and 231 and third magnets 241a and 241b corresponding thereto move in a predetermined direction of according to Fleming's left-hand rule. When a current is applied to the first drive coil 110, the first magnet 211 is moved in the optical axis direction (z axis direction). The first magnet 211 can be moved in a positive direction or in a negative direction of the optical axis direction (z axis direction) according to a direction in which current is supplied to the first drive coil 110. When a current is supplied to the second drive coil 120, the second magnet 231 is moved in a positive direction or in a negative direction of the first direction (x-axis direction) which is perpendicular to the optical axis. When a current is supplied to the third drive coils 130a and 130b, the third magnets 241a and 241b are also moved in a positive direction or in a negative direction from the second direction (y-axis direction) which is perpendicular to the optical axis.
    [00059] The printed circuit board 300 is electrically connected to the fixed frame 100. For example, a first printed circuit board 301 is connected to the first drive coil 110, and a second printed circuit board 302 is connected to the second voltage coil. drive 120 and the third drive coils 130a and 130b. First and second PI boards and P2 for connecting the printed circuit board 300 to the first and second drive coils 110 and 120 and the third drive coils 130a and 130b can be arranged outside the printed circuit board 300. The first PI board can be disposed external to the first printed circuit board 301, and the second board P2 may be disposed external to the second printed circuit board 302. The first and second boards P1 and P2 may be formed of various materials such as stainless steel.
    [00060] As described above, through the arrangement of the first and second magnets 211 and 231 and of the third magnets 241a and 241b that do not need to be electrically connected to the mobile frame 200 which is moved along three axes and arrangement of the first and second coil of drives 110 and 120 and the third drives 130a and 130b that need to be electrically connected, to the fixed frame 100 fixed to the base 20, the printed circuit board 300 that is electrically connected to the fixed frame 100 does not interfere with a movement of the moving frame 200. Consequently, the movable frame 200 can be moved exactly.
    [00061] First and second sensors 140 and 150 and third sensors 161 and 162 that detect movement of the movable frame 200 may be included in the first through fourth side walls 101, 102, 103 and 104 of the fixed frame 100. For example, the first sensor 140 is included in the first side wall 101 to detect a movement of the first magnet 211 in the optical direction (z-axis direction) and the second sensor 150 is included in the third side wall 103 to detect a movement of the second magnet 231 in the first axis), and third sensors 161 and 162 may be included in the second and fourth sidewalls, 102 and 104, to detect movement of the third magnets 241a and 241b in the second direction (y-axis direction).
    [00062] The first and second sensors 140 and 150 and the third sensors 161 and 162 can be magnetic sensors that can produce an electrical signal in proportion to a magnetic field of a magnet using a Hall effect, thus detecting a movement of the first and second magnets 211 and 231 and third magnets 241a and 241b and movable frame 200 in which first and second magnets 211 and 231 and third magnets 241a and 241b are installed.
    [00063] The first and second sensors 140 and 150 and third sensors 161 and 162 can detect the positions of the first and second magnets 211 and 231 and of the third magnets 241a and 241b used in moving the moving frame 200. Consequently, there is no need of installing an additional magnet for position detection and thereby a camera module structure can be simplified.
    [00064] The first sensor 140 can determine the position movement of the first magnet 211 in the optical axis direction (z axis direction). Figure 5 is a conceptual block diagram illustrating a first magnet and a first sensor, according to one embodiment. The principle of detecting a position of the first magnet 211 by means of the first sensor 140 will be described briefly with reference to Figure 5.
    [00065] The first magnet 211 can be moved in the optical axis direction (z axis direction). When the first magnet 211 is moved in the optical axis direction (z axis direction), a distance c between a center of the first magnet 211 and a center of the first sensor 140 in the optical axis direction (z axis direction) may vary. The first magnet 211 has an N pole and an S pole arranged in the optical axis direction (z axis direction) and thus the first magnet 211 can have a predetermined magnetic flux density in the optical axis direction (z axis direction). ) as shown in Figure 6. When the first magnet 211 is moved in the optical axis direction (z axis direction) with respect to the first sensor 140, a detection signal detected by the first sensor 140, for example, a magnetic flux density , varies.
    [00066] Figure 7 is a graph showing a magnetic flux density detected by the first sensor 140 while the first magnet 211 being spaced from the first sensor 140 by a predetermined distance of, for example, 0.6 mm, in the second direction (y-axis direction) , and is moved in the optical axis direction (z-axis direction) . Referring to Figure 7, a first magnetic flux density detected using the first magnetic sensor 211 has a predetermined value according to the distance c between the center of the first magnet 211 and the center of the first sensor 140 in the optical axis direction ( z axis direction). For example, if the distance c between the center of the first magnet 211 and the center of the first sensor 140 along the optical axis direction (z-axis direction) is 0, a first magnetic density detected by the first sensor 140 is 0 T ( tesla) and the distance c between the center of the first magnet 211 and the center of the first sensor 140 along the optical axis direction (z axis direction) is 0.12 mm, a first magnetic density detected by the first sensor 140 can be of 0.05 T. On the other hand, if the distance c between the center of the first magnet 211 and the center of the first sensor 140 along the optical axis direction (z-axis direction) is -0.12 mm, the first magnetic density detected by the first sensor 140 can be -0.05 T. That is, the first magnetic flux density detected by the first sensor 140 can be determined according to a position of the first magnet 211 along the optical axis direction (z axis direction). Thus, a position of the first magnet 211 along the optical axis direction (z-axis direction) can be determined based on the first magnetic flux density detected by the first sensor 140.
    [00067] In the above description of determining a position of the first magnet 211 along the optical axis direction (z-axis direction), it is assumed that the distance a between the first magnet 211 and the first sensor 140 along the second direction (y-axis direction) is constant. Referring to Figures 2 to 4 again, the first moving frame 210 in which the first magnet 211 is included is moved only in the optical axis direction (z-axis direction) with respect to the fixed frame 100, in which the first sensor 140 is included, via the guide groove 213, and thus the distance between the first magnet 211 and the first sensor 140 in the second direction (y-axis direction) is constant. A position movement of the first magnet 211 in the optical axis direction (z axis direction) can be determined based on a magnetic flux density detected by the first sensor 140 that is spaced from the first magnet 211 in the second direction (y axis direction). ) over a constant distance. Accordingly, the first sensor 140 can determine a motion motion of the first moving frame 210, in which the first magnet 211 is included, in the optical axis direction (z axis direction).
    [00068] The second sensor 150 can determine a position movement in the second magnet 231 in the first direction (x-axis direction). The first secondary movable frame 230 in which the second magnet 231 is included is moved in the first direction (x-axis direction) with respect to the first movable frame 210 via the guide slot 214. The first secondary movable frame 210 is not able to move in the second direction (y-axis direction) with respect to the first movable frame 210e, thus, a distance between the second sensor 140 installed in the fixed frame 100 and the second magnet 231 included in the first secondary movable frame 230 in the second direction (direction of y axis) is constant. In the same way as above, a position movement of the second magnet 231 in the first direction (x-axis direction) can be determined based on a magnetic flux density detected by the second sensor 150 which is spaced from the second magnet 231 by a constant distance. in the second direction (y-axis direction). Accordingly, the second sensor 150 can determine a position of the first secondary moving frame 230 in which the second magnet 231 is included.
    [00069] The third sensors 161 and 162 can determine a position movement of the pair of third magnets 241a and 241b in the second direction (y-axis direction). The second secondary movable frame 240 in which the third magnets 241a and 241b are included is shifted in the second direction (y-axis direction) with respect to the first secondary movable frame 230 via the guide slot 233. The second secondary movable frame 240 is not capable of moving in the first direction (x-axis direction) with respect to the first secondary movable frame 230, but the first secondary movable frame 230 movably supporting the second secondary movable frame 240 can be shifted in the first direction (axis direction x) as described above. Consequently, when the first secondary movable frame 230 is moved in the first direction (x-axis direction), the second secondary movable frame 240 is moved in the first direction, and consequently, the third magnets 241a and 241b are moved in the first direction (direction of X axis) . Consequently, the distance between the third magnet 241a and the third sensor 161 and the distance between the third magnet 241b and the third sensor 162 varies.
    [00070] Figure 8 is a graph showing a magnetic flux density detected by the third magnetic sensor 161 when the third magnet 241a is moved in the second direction (y-axis direction), when the distance a between the third magnet 241a and the third sensor 161 varies in the first direction (x-axis direction). Referring to Figure 8, the magnetic flux density detected by the third sensor 161 as the third magnet 241a is moved along the second direction (y-axis direction) varies according to the distance between the third magnet 241a and the third sensor 161 to the along the first direction (x-axis direction). For example, when the distance between the third magnet 241a and the third sensor 161 in the first direction (x-axis direction) was 0.6mm, 0.7mm, 0.8mm and 0.9mm, and the third magnet 241 moved from the third sensor 161 by 0.6 mm in the second direction (y-axis direction), a magnetic density detected using the third sensor 161 was approximately 0.225 T, approximately 0.2 T, approximately 0.175 T, and approximately 0.16 T, respectively. That is, even though the third magnet 241a is arranged in the same position along the second direction (y-axis direction), if the distance between the third magnet 241a and the third sensor 161 along the first direction (x-axis direction) varies , the magnetic flux density detected by the third sensor 161 is not constant. Consequently, if a position of the third magnet 241a along the second direction (y-axis direction) is determined only by the magnetic flux density detected by the third sensor 161, a significant error can occur.
    [00071] Because of this, according to the present embodiment, third sensors 161 and 162 that are spaced from each other by a predetermined distance are arranged on two sides of the pair of third magnets 241a and 241b in the first direction (x axis direction). ), and a position of the third magnets, 241a and 241b, in the second direction (y-axis direction) can be determined based on a magnetic flux density detected by the third sensors 161 and 162.
    [00072] Figure 9 is a plan view of the camera module of Figure 2 illustrating the second secondary movable frame 240, according to one embodiment. Figures 10A and 10B are plan views illustrating the second secondary movable frame 240 of Figure 9 moved in the first direction (x-axis direction) in accordance with embodiments.
    [00073] Referring to Figure 9, the second secondary movable frame 240 mounts the lens cylinder 10 and is moved in the first direction and in the second direction. The second secondary movable frame 240 includes third magnets 241a and 241b disposed on two sides in the first direction (x-axis direction). Fixed frame 100 includes third sensors 161 and 162 spaced apart in the first direction (x-axis direction) to correspond respectively to third magnets 241a and 241b. Third sensors 161 and 162 are spaced apart by a predetermined distance. When a distance between the third magnet 241a and the third sensor 161 in the first direction (x-axis direction) is al, and a distance between the other third magnet 241b and the other third sensor 162 in the first direction (x-axis direction) is bl , the distances a1 and bl vary according to the movement of the second secondary movable frame 240 in the first direction (x-axis direction). However, the sum of al + bl remains constant.
    [00074] Referring to Figure 10A, the second secondary movable frame 240 is moved in the first direction (x-axis direction) such that the third magnet 241a can be spaced from the third sensor 161 in the first direction (x-axis direction) by 0.7 mm, and the third magnet 241b can be spaced from the third sensor 162 in the first direction (x-axis direction) by 0.8 mm. Referring to Figure 10B, the second secondary movable frame 240 is moved in the first direction (x-axis direction) such that the third magnet 241a can be spaced from the third sensor 161 in the first direction (x-axis direction) at 0, 6 mm, and the third magnet 241b can be spaced from the third sensor 162 in the first direction (x-axis direction) by 0.9 mm.
    [00075] Figure 11A is a graph showing a magnetic flux density detected by the third sensors 161 and 162 of Figure 10A according to the positions of the third magnets 241a and 241b in the second direction (y-axis direction), and Figure 11B is a graph showing a magnetic flux density detected by the third sensors 161 and 162 of Figure 10B according to the position of the third magnets 241a and 241b in the second direction (y-axis direction). Figure 12 is a graph showing a third magnetic flux density which is a sum of the first and second magnetic flux density detected by the third sensors 161 and 162 shown in Figures 11A and 11B, according to a position of the second secondary moving frame 240 in the second direction (y-axis direction), according to one embodiment.
    [00076] With reference to Figures 11A and 11B, according to the position of the second secondary movable frame 240 in the second direction (y-axis direction), patterns of the first and second magnetic flux density detected by the third sensors 161 and 162 vary from according to the distances between the third sensors 161 and 162 and the third magnets 241a and 241b in the first direction (x-axis direction). For example, a pattern of the first magnetic flux density detected by the third sensor 161 when the distance between the third sensor 161 and the third magnet 241a along the first direction (x-axis direction) is 0.7 mm is different from a pattern of the second magnetic flux density detected by the third sensor 162 when the distance between the third sensor 162 and the third magnet 241b in the first direction (x-axis direction) is 0.8 mm. Also, a pattern of the first magnetic flux density detected by the third sensor 161 when the distance between the third sensor 161 and the third magnet 241a along the first direction (x-axis direction) is 0.9 mm is different from a pattern of the second magnetic flux density detected by the third sensor 162 when the distance between the third sensor 162 and the third magnet 241b along the first direction (x-axis direction) is 0.9 mm.
    [00077] However, with reference to Figure 12, the third magnetic density (sum, sum2), which is a sum of the magnetic flux densities detected by the third sensors, 161 and 162, exhibits substantially the same patterns regardless of the position of the second. secondary movable frame 240 along the first direction (x-axis direction). The third magnetic flux density (sum 1) is a sum of the first magnetic flux density detected by the third sensor 161 and the second magnetic flux density detected using the third sensor 162 of Figure 11A, and the third magnetic flux density ( sum2) is a sum of the first magnetic flux density detected by the third sensor 161 and the second magnetic flux density detected by the third sensor 162 of Figure 11B. The third magnetic flux density (sum, sum2) which is a sum of the first magnetic flux density and the second magnetic flux density has a constant value regardless of a movement of the first magnet 211 in the first direction (x-axis direction). The third magnetic flux density (sum, sum2) having a constant value according to a position of the third magnets 241a and 241b in the second direction (y-axis direction) means that even when the third magnets 241a and 241b are moved in the first direction (x-axis direction), an error of the third magnetic flux density (detected at the same position in the second direction (y-axis direction) is less than up to 2.9%.
    [00078] Thus, even when the third magnets 241a and 241b are located at different positions in the first direction (x-axis direction) as illustrated in Figures 8A and 8B, a third magnetic flux density which is the sum of the magnetic flux densities detected by the third sensor 161 and the third sensor 162 is constant according to a position of the third magnets 241a and 241b in the second direction (y-axis direction).
    [00079] Accordingly, a position information generation unit (not shown) can compare the third magnetic flux density which is the sum of the first magnetic flux density detected by the third sensor 161 and the second magnetic flux density detected by the third sensor 162 with a predetermined reference value, thereby generating position information from third magnets 241a and 241b in the second direction (y-axis direction). For example, the position information generation unit can compare the third magnetic flux density which is the sum of the first magnetic flux density detected by the third sensor 161 and the second magnetic flux density detected using the third sensors 162 with a predetermined reference value according to the position of the third magnets 241a and 241b in the second direction (y-axis direction), thus generating or determining position information of the third magnets 241a and 241b in the second direction (y-axis direction). As the third magnets 241a and 241b are attached to the second secondary movable frame 240, position information of the second secondary movable frame 240 can be generated or determined based on the position information of the third magnets 241a and 241b in the second direction (y-axis direction). ). The reference value can be a preset value based on the third magnetic flux density in the second direction illustrated in Figure 10.
    [00080] The position information generation unit may include a memory unit that stores a preset reference value according to the movement of the third magnets 241a and 241b in the second direction (y-axis direction) and a position determination unit. position that determines the position information of the third magnets 241a and 241b along the second direction (y-axis direction) by comparing the third magnetic flux density with the reference value.
    [00081] The magnetic flux density is used as an example of a detection signal detected by a magnetic sensor in the current mode. However, an electrical signal or the like can also be used.
    [00082] Table 1 below shows the results of a position movement of the moving frame 200 of the camera module of Figure 2 in a positive direction or in a negative direction of the second direction (y-axis direction). A current was supplied to the third drive coils 130a and 130b to move the third magnets 241a and 241b in a positive direction from the second direction (y-axis direction) nine times and in a negative direction from the second direction (y-axis direction) nine times. times when the moving frame 200 was in a reference position (Offset = 0 µm), when the movable frame 200 was spaced from the reference position by a distance of +100 µm in the first direction (x-axis direction) (Offset = + 100 µm), and when the movable frame 200 was spaced from the reference position by a distance of -100 µm in the first direction (x-axis direction) (Offset = -100 µm), respectively. By moving the third magnets 241a and 241b in the second direction (y-axis direction), position information of the third magnets 241a and 241b in the second direction (y-axis direction) generated based on the sum of detection signals detected by the third sensors 161 and 162 was used.

    [00083] With reference to Table 1, even when a position of the moving frame 200 varies in the first direction (x-axis direction), when a predetermined current was applied to the third drive coils 130a and 130b, the moving frame 200 was moved uniformly within a range of approximately 8 to 11 µm which is a predetermined range in the second direction (y-axis direction). An average distance was approximately 9.0 µm to approximately 10.4 µm.
    [00084] With respect to the uniform position movement of the moving frame 200 in the second direction (y-axis direction) as shown in Table 1 it is assumed that an exact position detection of the moving frame 200 occurs in the second direction (y-axis direction) . Consequently, based on the uniform position movement of the movable frame 200 in the second direction (y-axis direction) in a predetermined range, it can be indirectly confirmed that the positions of the third magnets 241a and 241b can be accurately detected based on the sum of the detection signals detected by third sensors 161 and 162.
    [00085] Figure 13 is a perspective cross-sectional view of the camera module of Figure 1 cut along the line XIII-XIII' and Figure 14 is a perspective cross-sectional view of the camera module of Figure 1 cut away along a line XIV-XIV'.
    [00086] Referring to Figure 13, the first drive coil 110 and the first sensor 140 are included in the first side wall 101 of the fixed frame 100, and the first magnet 211 is arranged in the movable frame 200 to correspond to the first drive coil 110 and to the first sensor 140. The first drive coil 110 and the first magnet 211 are spaced apart in the second direction (y-axis direction) perpendicular to an optical axis. Furthermore, the second drive coil 120 and the second sensor 150 are included in the third side wall 103 of the fixed frame 100, and the second magnet 231 is arranged in the movable frame 200 to correspond to the second drive coil 120 and the second sensor 150. The second drive coil 120 and the second sensor 150 are also spaced from each other in the second direction (y-axis direction) perpendicular to the optical axis. The first drive coil 110 and the first sensor 140 are electrically connected to the first printed circuit board 301, and the second drive coil 120 and second sensor 150 are electrically connected to the second printed circuit board 302.
    [00087] Referring to Figure 14, the third drive coils 130a and 130b and the third sensors 161 and 162 are included in the second side wall 102 and fourth side wall 104 of the fixed frame 200, respectively, and the third magnets 241a and 241b are arranged on movable frame 200 to correspond to third drive coils 130a and 130b and third sensors 161 and 162. Third drive coils 130a and 130b and third magnets 241a and 241b are spaced apart in the first direction (direction of x axis) which is perpendicular to the optical axis. The drive coil pair 130a and 130b and the pair of third sensors 161 and 162 are electrically connected to the second printed circuit board 302.
    [00088] When a current is supplied to one of the first and second drive coils 110 and 120 and the third drive coils 130a and 130b via the first and second printed circuit boards, the first and second magnets 211 and 231 and the third magnets 241a and 241b which are spaced from the first and second, 110 and 120, and from the third drive coils 130a and 130b in a direction perpendicular to the optical axis are moved in a predetermined direction. When a current is applied to the first drive coil 110, the first magnet 211 is moved in the optical axis direction (z axis direction). Furthermore, when a current is supplied to the second drive coil 120, the second magnet 231 is moved in the first direction (x-axis direction), and when a current is supplied to the third drive coils 130a and 130b, the third magnets 241a and 241b are moved in the second direction (y-axis direction). Current may be supplied individually or simultaneously to the first and second drive coils 110 and 120 and to the third drive coils 130a and 130b.
    [00089] While the first and second magnets 211 and 231 and the third magnets 241a and 241b are moved, the fixed frame 100 to which the first and second printed circuit boards 301 and 302 are electrically connected is fixed to the base 20 and not is moved, and thus the voltage variation of the first and second printed circuit boards 301 and 302 is not caused while the moving frame 200 to which the first and second magnets 211 and 231 and the third magnets 241a and 241b are mounted is moved . Consequently, the moving frame 200 can be moved accurately without being affected by the voltage variation applied to the first and second printed circuit boards 301 and 302.
    [00090] Furthermore, by spacing the first and second coils 110 and 120 and the third drive coils 130a and 130b with respect to the first and second magnets 211 and 231 and third magnets 241a and 241b in a direction perpendicular to the optical axis, the thickness of the camera module in the optical axis direction can be reduced. In detail, even when the first and second magnets 211 and 231 and the third magnets 241a and 241b have greater thicknesses, the thickness of the camera module in the optical axis direction may not increase.
    [00091] In the embodiment described above, the first sub-movable frame 230 is moved in the first direction (x-axis direction), and the second sub-movable frame 240 is moved in the second direction (y-axis direction), but the embodiments are not limited to that. For example, in contrast to the embodiment described above, the first secondary movable frame 230 can be moved in the second direction (y-axis direction), and the second secondary movable frame 240 can be moved in the first direction (x-axis direction). Furthermore, although a voice coil mechanism (VCM) method in which an electromagnetic force generated between a coil and a magnet is used to drive moving frame 200 is used in the embodiment described above, other methods for driving moving frame 200 for example, an ultrasonic wave engine method using a piezoelectric element or a method of driving the moving frame 200 by applying a current to a shape memory alloy may also be used.
    [00092] According to the camera module of the modalities described above, a printed circuit board is connected to a fixed frame for driving three axes, thus providing an Auto Focus (AF) function and an Optical Image Stabilization function. (OIS) whereby a lens can be moved accurately and a voltage variation on the printed circuit board can be prevented or minimized.
    [00093] For the purpose of promoting an understanding of the principles of the invention, reference has been made to the preferred embodiments illustrated in the drawings, and specific language has been used to describe these embodiments. However, no limitation on the scope of the invention is intended by that specific language, and the invention should be considered to encompass all embodiments that would normally occur to those of common knowledge in the art.
    [00094] The terms "mechanism" and "element" are used broadly and are not limited to mechanical or physical modalities, but may include software routines in conjunction with processors, etc.
    [00095] The specific implementations shown and described herein are illustrative examples of the invention and are not intended to otherwise limit the scope of the invention in any way. For the purposes of brevity, conventional electronics, control systems, software development, and other functional aspects of systems (and components of the systems' individual operating components) may not be described in detail. Additionally, the connecting lines or connectors shown in the various figures presented are intended to represent exemplary functional relationships and/or physical or logical couplings between the various elements. It should be noted that many alternative or additional functional relationships, physical connections or logical connections may be present in a practical device. Furthermore, no item or component is essential to the practice of the invention unless the element is specifically described as "essential" or "crucial".
    [00096] The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention (especially in the context of the following claims) should be considered as embracing the singular and the plural. Furthermore, the citation of ranges of values in this document is only intended to serve as a shorthand method of individually referring to each separate value within the range, unless otherwise indicated herein, and each separate value is incorporated in the report. descriptive as if it were cited here individually. Finally, the steps of all methods described herein may be performed in any suitable order unless otherwise indicated or otherwise clearly contradicted by the context. The use of any and all examples or exemplary language (e.g., "such as") provided herein is only intended to further illustrate the invention and does not present a limitation on the scope of the invention unless otherwise claimed. Various modifications and adaptations will be readily apparent to those skilled in the art without departing from the spirit and scope of the present invention.
    权利要求:
    Claims (10)
    [0001]
    1. APPARATUS, characterized in that it comprises: a cylinder of lenses (10) that includes at least one group of lenses (11); a base (20) that includes an image sensor (21) m away from the cylinder of lenses in the direction of an optical axis; a fixed frame (100) attached to the base, the fixed frame having four side walls including a first side wall, a second side wall, and a third side wall, each having a hole to accommodate a first coil of drive, a second drive coil, and a third drive coil, respectively; a first movable frame (210), which is movably supported by the fixed frame in the direction of the optical axis, having a first magnet attached thereto, the first magnet moved by the first drive coil to move the first frame along the optical axis direction; a plurality of first spherical bearings (B1) arranged between the fixed frame and the first movable frame, wherein a guide groove that guides the plurality The spherical bearing arrangement in the optical axis direction is formed in at least one of the fixed frame and the first movable frame; a second movable frame (220), m'velocityly supported on the first movable frame (210) in a direction perpendicular to the axis direction optic, having a lens cylinder mounted thereon, a second magnet mounted thereon, the second magnet moved by the third drive cylinder to move the second movable frame along a second direction perpendicular to the direction of the optical axis; a plurality of second bearings spherical bearings disposed between the first movable frame and the second movable frame wherein a guide groove guiding the plurality of the second spherical bearings in the first or second direction is formed in at least one of the first movable frame and the second movable frame; a flexible printed circuit board (300), the flexible printed circuit board connected to the first drive coil, the second drive coil, and the third drive drive bin to supply current; a first sensor connected to the flexible printed circuit board and configured to detect a position of the first magnet along the optical axis direction; a second sensor connected to the flexible printed circuit board and configured to detect a position from the second magnet along the first direction; and a third sensor connected to the flexible printed circuit board and configured to detect a position of the third magnet along the second direction.
    [0002]
    Apparatus as claimed in claim 1, characterized in that the first sensor is located within the first drive coil.
    [0003]
    An apparatus according to claim 1 or claim 2, characterized in that the second movable frame comprises: a first secondary movable frame which is moved in the first direction, wherein the second magnet is disposed on one side of the first secondary movable frame; and a second secondary movable frame which is moved in the second direction, wherein the third magnets are disposed on two sides of the second secondary movable frame.
    [0004]
    Apparatus according to claim 3, characterized in that: the second secondary movable frame is movably supported by the first secondary movable frame in the second direction; and the first secondary moving frame is movably supported by the first moving frame in the first direction.
    [0005]
    Apparatus according to claim 3 or claim 4, characterized in that: a plurality of first spherical bearings are arranged between the first secondary mobile frame and the second secondary mobile frame; and a first guide groove that guides the plurality of first spherical bearings in the second axis direction is formed in at least one of the first secondary movable frame and the second secondary movable frame, several second spherical bearings are disposed between the first secondary movable frame and the first moving frame; and a second guide groove that guides the plurality of second spherical bearings in the first direction is formed in at least one of the first secondary movable frame and the first movable frame.
    [0006]
    Apparatus as claimed in claims 3, 4 or 5, characterized in that the first secondary movable frame comprises an offset portion for offsetting the third magnets, wherein the offset portion and the third magnets are spaced between yes.
    [0007]
    Apparatus according to any one of claims 3 to 6, characterized in that the first movable frame comprises a yoke which is arranged to correspond to the third of the magnets which prevents the second movable frame from detaching.
    [0008]
    A camera module according to any one of claims 3 to 7, characterized in that: the third magnets are arranged on two sides in the first direction of the second moving frame; and the third sensors are arranged on two sides in the first direction of the fixed frame, and, optionally, wherein a position of the movable frame in the second direction is detected based on: a first detection signal being detected by one of the third sensors; and a second detection signal detected by other of the third sensors.
    [0009]
    Apparatus according to claim 8, characterized in that a position of the moving frame in the second direction is detected based on a third detection signal which is a sum of a first detection signal and a second detection signal.
    [0010]
    Apparatus according to claim 8, characterized in that a sum of a distance between one of the third sensors and one of the third magnets in the first direction and a distance between the other of the third sensors and the other of the third magnets is constant.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112015029406B1|2022-02-01|camera module
    US8818181B1|2014-08-26|Camera module, and position detector and position detection method used in the camera module
    CN107340668B|2019-11-19|Twin-lens photographic system
    KR101960493B1|2019-07-15|Optical adjusting apparatus
    CN103901701B|2019-09-06|The portable terminal of lens driver, photographing module and subsidiary video camera
    US8279289B2|2012-10-02|Optical unit with shake correcting function
    KR20130069406A|2013-06-26|Image stabilization apparatus, optical apparatus, and imaging apparatus
    US8849106B1|2014-09-30|Shake correction device
    JP5538020B2|2014-07-02|Optical device for photography
    US8243147B2|2012-08-14|Handshake correction apparatus
    KR20140035672A|2014-03-24|Image stabilizer and digital photographing apparatus comprising the same
    JP2017156775A5|2017-12-21|
    JP2011118032A|2011-06-16|Lens drive device
    KR20140140329A|2014-12-09|Camera module
    CN107329348A|2017-11-07|A kind of lens driver with stabilization function
    JP6376801B2|2018-08-22|Image blur correction device, lens barrel, and optical apparatus
    JP5861317B2|2016-02-16|Anti-vibration device, lens barrel and optical equipment
    JP2014186131A|2014-10-02|Optical device for photographing
    JP2007233140A|2007-09-13|Image blurring correction device
    JP6513928B2|2019-05-15|Position detection device
    JP2009230025A|2009-10-08|Coil drive unit, blur correction mechanism and imaging apparatus
    JP2012103735A|2012-05-31|Optical device
    JP2010039083A|2010-02-18|Optical vibration-proof device and optical equipment
    TWI495338B|2015-08-01|Camera module
    CN109477946A|2019-03-15|Lens barrel and camera
    同族专利:
    公开号 | 公开日
    EP3793187A1|2021-03-17|
    AU2014309689A1|2015-11-26|
    AU2014309689B2|2016-12-01|
    US20160353029A1|2016-12-01|
    KR102166329B1|2020-10-15|
    KR20150020951A|2015-02-27|
    EP3940441A1|2022-01-19|
    WO2015026078A1|2015-02-26|
    EP2852148B1|2021-05-05|
    EP2852148A2|2015-03-25|
    US9438801B2|2016-09-06|
    US9832383B2|2017-11-28|
    US20150049209A1|2015-02-19|
    BR112015029406A2|2018-05-29|
    EP2852148A3|2015-09-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP4191455B2|2002-11-14|2008-12-03|富士フイルム株式会社|camera|
    KR100524994B1|2003-12-17|2005-10-31|삼성전자주식회사|Magnetic circuit and optical recording and/or reproducing apparatus employing it|
    JP4416530B2|2004-02-10|2010-02-17|キヤノン株式会社|Vibration correction apparatus and optical apparatus|
    JP2006184544A|2004-12-27|2006-07-13|Sony Corp|Lens device and imaging device provided with the same|
    JP4639942B2|2005-05-11|2011-02-23|コニカミノルタオプト株式会社|Imaging device with shake correction mechanism|
    JP2007156351A|2005-12-08|2007-06-21|Sony Corp|Image blur correction device, lens device and imaging apparatus|
    WO2009139543A1|2008-05-14|2009-11-19|하이소닉|Photography device with anti-shake function|
    US8279289B2|2008-10-14|2012-10-02|Nidec Sankyo Corporation|Optical unit with shake correcting function|
    JP2010128366A|2008-11-28|2010-06-10|Sony Corp|Lens barrel and imaging apparatus|
    CN101959012B|2009-07-17|2013-08-21|鸿富锦精密工业（深圳）有限公司|Camera module|
    WO2011062123A1|2009-11-18|2011-05-26|日本電産サンキョー株式会社|Lens drive device|
    JP5461981B2|2009-12-25|2014-04-02|日本電産サンキョー株式会社|Lens drive device|
    US8254769B2|2010-03-04|2012-08-28|Tdk Taiwan Corp.|Anti-shake structure for auto-focus modular|
    KR101095108B1|2010-03-23|2011-12-16|삼성전기주식회사|Camera module|
    KR101085645B1|2010-10-04|2011-11-22|삼성전기주식회사|Image photographing device having function for compensation hand vibration|
    KR101706267B1|2010-10-28|2017-02-15|삼성전자주식회사|Optical device with adjustable optical element|
    KR101214708B1|2010-12-14|2012-12-21|엘지이노텍 주식회사|Camera Module|
    KR101182549B1|2010-12-16|2012-09-12|엘지이노텍 주식회사|3d stereoscopic camera module|
    JP5821356B2|2011-07-15|2015-11-24|ミツミ電機株式会社|Lens drive device|
    KR101960506B1|2011-07-26|2019-07-16|삼성전자주식회사|Position sensing assembly and optical device having the same|
    KR20130069406A|2011-12-16|2013-06-26|캐논 가부시끼가이샤|Image stabilization apparatus, optical apparatus, and imaging apparatus|
    TWI514869B|2011-12-27|2015-12-21|Hon Hai Prec Ind Co Ltd|Autofocus imaging module and autofocus method|
    JP2013140284A|2012-01-05|2013-07-18|Sony Corp|Image-blurring correction device and imaging apparatus|
    KR101314652B1|2012-03-30|2013-10-07|자화전자|Controlling apparatus for operating camera module and method thereof|
    TWI546604B|2012-07-05|2016-08-21|鴻海精密工業股份有限公司|Actuator and camera module using same|
    US9225886B2|2012-07-09|2015-12-29|Lg Innotek Co., Ltd.|Camera module|
    WO2014069251A1|2012-10-31|2014-05-08|富士フイルム株式会社|Camera module|
    JP5955756B2|2012-12-11|2016-07-20|日本電産サンキョー株式会社|Optical device|
    KR102125558B1|2013-08-19|2020-06-22|삼성전자주식회사|Camera module, position detector and position detection method|KR101300353B1|2011-12-22|2013-08-28|삼성전기주식회사|Hand vibration correction device|
    JP5857163B2|2013-07-29|2016-02-10|富士フイルム株式会社|Imaging module manufacturing method and imaging module manufacturing apparatus|
    US9372352B2|2013-08-23|2016-06-21|Samsung Electro-Mechanics Co., Ltd.|Lens driving device and camera module including the same|
    US9531953B2|2013-10-11|2016-12-27|Samsung Electro-Mechanics Co., Ltd.|Camera module and portable electronic device including the same|
    US9964778B2|2013-10-25|2018-05-08|Jahwa Electronics Co., Ltd.|Camera lens module|
    WO2015060637A1|2013-10-25|2015-04-30|자화전자|Camera lens module|
    US10133086B2|2013-10-25|2018-11-20|Jahwa Electronics Co., Ltd.|Camera lens module|
    KR101666087B1|2013-10-25|2016-10-14|자화전자|Camera lens module|
    KR102179952B1|2013-11-25|2020-11-17|삼성전자주식회사|Optical adjusting apparatus|
    KR101725442B1|2014-03-07|2017-04-11|자화전자|Camera lens module|
    US9578242B2|2014-04-11|2017-02-21|Samsung Electro-Mechanics Co., Ltd.|Camera module|
    US9618770B2|2014-04-11|2017-04-11|Samsung Electro-Mechanics Co., Ltd.|Camera module with function of auto-focus and image stabilize|
    KR101693462B1|2014-04-11|2017-01-09|삼성전기주식회사|Camera Module|
    US9921458B2|2014-05-30|2018-03-20|Samsung Electro-Mechanics Co., Ltd.|Camera module|
    US9791674B1|2015-02-06|2017-10-17|Apple Inc.|Miniature camera zoom actuator with magnet-induced friction|
    KR20160121298A|2015-04-10|2016-10-19|삼성전기주식회사|Lens driving device and camera module including same|
    KR101832568B1|2015-05-20|2018-02-27|삼성전기주식회사|Camera Module|
    US20160341975A1|2015-05-21|2016-11-24|Jahwa Electronics Co., Ltd.|Camera lens module|
    KR101694881B1|2015-06-23|2017-01-23|자화전자|Camera lens module|
    KR20170033663A|2015-09-17|2017-03-27|삼성전자주식회사|Camera module including multi-lens and electronic device having the same|
    KR101740814B1|2015-10-14|2017-05-26|삼성전기주식회사|Camera module|
    KR20170052977A|2015-11-05|2017-05-15|삼성전자주식회사|Camera module including multi-lens, electronic device having the same and method for controlling an operation of the camera module|
    KR20170070625A|2015-12-14|2017-06-22|삼성전자주식회사|Lens assembly and electronic device with the same|
    KR101704498B1|2016-03-10|2017-02-09|자화전자|Apparatus for auto focus with 3 location supporting structure|
    KR102348365B1|2016-05-03|2022-01-10|삼성전자주식회사|Electronic device including camera module|
    US9958756B2|2016-05-20|2018-05-01|Tdk Taiwan Corp.|Camera module and image capturing unit thereof|
    KR101978946B1|2016-06-09|2019-05-15|자화전자|Apparatus for auto focus|
    US10317779B2|2016-08-16|2019-06-11|Microsoft Technology Licensing, Llc|Imaging apparatus|
    WO2018223382A1|2017-06-09|2018-12-13|Huawei Technologies Co., Ltd.|Lens actuator with ois and af function|
    CN109391750A|2017-08-05|2019-02-26|宁波舜宇光电信息有限公司|One camera module and its electronic equipment and camera module preparation method|
    JP6630331B2|2017-10-23|2020-01-15|新思考電機有限公司|Lens drive device, camera device, and electronic device|
    KR20190092803A|2018-01-31|2019-08-08|삼성전자주식회사|Camera module|
    CN209446872U|2018-05-30|2019-09-27|台湾东电化股份有限公司|Optical element driving mechanism|
    CN209803436U|2018-07-25|2019-12-17|台湾东电化股份有限公司|Optical assembly driving mechanism|
    CN110784625A|2018-07-25|2020-02-11|台湾东电化股份有限公司|Driving mechanism of photosensitive assembly|
    KR102357533B1|2019-04-30|2022-02-04|삼성전기주식회사|Camera module|
    CN111856839A|2019-04-30|2020-10-30|三星电机株式会社|Camera module|
    法律状态:
    2018-11-06| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-04-14| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-12-21| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2022-02-01| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/08/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020130098132A|KR102166329B1|2013-08-19|2013-08-19|Camera module|
    KR10-2013-0098132|2013-08-19|
    PCT/KR2014/007209|WO2015026078A1|2013-08-19|2014-08-05|Camera module|
    [返回顶部]