Image capturing apparatus

Abstract

To provide an image capturing apparatus that suppresses an increase in size even when a width of a wiring portion of an FPC is increased.SOLUTION: An image capturing apparatus comprises: a fixed portion; a movable portion on which an imaging element is movably arranged relative to the fixed portion in a plane orthogonal to an optical axis of an image capturing optical system; and an image capturing FPC60 that electrically connects the fixed portion and the movable portion. The image capturing FPC60 includes a first image capturing FPC61 and a third image capturing FPC63. The first image capturing FPC61 and the third image capturing FPC63 overlap by W4 when viewed from an optical axis direction of the image capturing optical system, and are separated in the optical axis direction at a portion overlapping by W4.SELECTED DRAWING: Figure 11

Description

[Technical Field]

[0001] The present invention relates to an imaging device, and more particularly to an imaging device equipped with a drive device that performs position control. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there has been known a driving device that moves a movable part relative to a fixed part within a plane.

[0003] An example of an application of such a drive device is a vibration reduction mechanism mounted on an imaging device. In the vibration reduction mechanism, a circuit board on which an imaging element is mounted is mounted on a movable part, and electrical connection parts such as connectors are also mounted on this circuit board. Meanwhile, a control unit that drives and controls the movable part is mounted on a fixed part, such as a housing that holds the movable part, and electrical connection parts such as connectors are also mounted on this control board.

[0004] The electrical connection parts mounted on the movable and fixed parts are electrically connected by an FPC (flexible printed circuit board). Utilizing the flexibility of this FPC, the control unit mounted on the fixed part electrically connects the movable part and controls its drive.

[0005] In recent years, imaging devices have become more pixel-rich for video recording and have improved functionality, such as for high-speed continuous shooting, resulting in increased power consumption and the number of connection signals of imaging elements, and an increase in the width of the wiring portion of the FPC. Such an increase in the width of the wiring portion of the FPC places a burden on the driving of the moving part. For this reason, for example, Patent Document 1 discloses a technology for arranging multiple FPCs so that they do not overlap when the imaging device is viewed from the back, thereby reducing the driving load of the moving part. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2020-64281 Summary of the Invention [Problem to be solved by the invention]

[0007] However, as the functionality of imaging devices improves and the width of the wiring portion of the FPC increases, arranging the FPCs so that they do not overlap, as in the technology of Patent Document 1, may result in an increase in the size of the image stabilization mechanism, which in turn may result in an increase in the size of the imaging device.

[0008] Therefore, an object of the present invention is to prevent the size of the imaging device from increasing even when the width of the wiring portion of the FPC increases. [Means for solving the problem]

[0009] In order to solve the above problem, the imaging device of claim 1 of the present invention comprises a first unit, a second unit in which an imaging element is arranged so as to be movable relative to the first unit in a plane perpendicular to the optical axis of the imaging optical system, and two or more wiring members electrically connecting the first unit and the second unit, wherein the two or more wiring members include a first wiring member and a second wiring member, and the first wiring member and the second wiring member overlap by a predetermined amount when viewed from the optical axis direction of the imaging optical system and are spaced apart in the optical axis direction at the overlapping portion by the predetermined amount. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide an imaging device that does not increase in size even when the width of the wiring portion of the FPC increases. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a diagram illustrating a schematic configuration of an imaging device according to a first embodiment of the present invention. [Figure 2] 2 is an exploded perspective view of a shake correction unit provided in the imaging device in FIG. 1, the shake correction unit having a movable portion and a fixed portion. [Figure 3] FIG. 10 is another exploded perspective view of the image stabilization unit included in the imaging device. [Figure 4]FIG. [Figure 5] FIG. 10 is another exploded perspective view of the movable portion. [Figure 6] 1 is an exploded perspective view of a biasing magnetic circuit and a detecting magnetic circuit formed by combining a movable part and a fixed part. FIG. [Figure 7] 3A and 3B are a projection view and a cross-sectional view of a detection magnetic circuit taken along the optical axis. [Figure 8] FIG. 2 is an exploded perspective view of the imaging device. [Figure 9] 9A and 9B are a projection view and a cross-sectional view in the optical axis direction when the first imaging FPC in FIG. 8 is assembled. [Figure 10] 9A and 9B are a projection view and a cross-sectional view in the optical axis direction when the second imaging FPC in FIG. 8 is assembled. [Figure 11] 9A and 9B are a projection view and a cross-sectional view in the optical axis direction when the third imaging FPC in FIG. 8 is assembled. [Figure 12] 2A and 2B are a projection view and a cross-sectional view in the optical axis direction of a component of a heat dissipation path of the imaging element in FIG. 1; [Figure 13] 2A and 2B are a projection plane view and a cross-sectional view in the optical axis direction of the image stabilization unit according to the first embodiment. [Figure 14] 10A and 10B are a projection view and a cross-sectional view in the optical axis direction of an imaging FPC according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Here, the description will be given taking as an example a configuration in which a drive unit according to the present invention is applied to an image stabilization device for an imaging device, but application examples of the drive unit according to the present invention are not limited to image stabilization devices.

[0013] (First embodiment) FIG. 1 is a diagram illustrating a schematic configuration of an imaging device 10 according to a first embodiment of the present invention.

[0014] The imaging device 10 is a so-called mirrorless digital camera, and has an imaging device body 10a (hereinafter referred to as "body portion 10a") and a lens barrel 10b that is detachable from the body portion 10a.

[0015] Main body 10a includes a substantially rectangular imaging element 11 having an imaging surface 11a, a main body-side mount member 13a, a base member 13c, a camera control unit 14, a shake correction control unit 15, a vibration detection unit 16, an image processing unit 17, and a shake correction unit 20. Lens barrel 10b includes an imaging optical system 12 and a lens-side mount member 13b.

[0016] A virtual light ray representing the light beam irradiated onto the imaging surface 11a of the imaging element 11 via the imaging optical system 12 is referred to as the "imaging optical axis 12a" (hereinafter referred to as the "optical axis 12a"), and a plane perpendicular to the optical axis 12a is referred to as the "optical axis perpendicular plane" (hereinafter referred to as the "optical axis perpendicular plane 12c"). The optical axis 12a passes through the center of the imaging surface 11a and is perpendicular to the imaging surface 11a. In addition, to clarify the arrangement and positional relationship of each component constituting the imaging device 10 within the imaging device 10, the X direction, Y direction, and Z direction, which are perpendicular to each other, are defined as shown in FIG. 1. The Z direction is parallel to the optical axis 12a, the X direction is the width direction of the imaging device 10, and the Y direction is the height direction of the imaging device 10. When the X direction and the Z direction are both in a horizontal plane, the Y direction is the vertical direction. Therefore, the optical axis perpendicular plane 12c is an XY plane.

[0017] The imaging element 11 is composed of a photoelectric conversion element such as a CMOS image sensor or a CCD image sensor, and is arranged with its imaging surface 11a facing the subject (the lens barrel 10b side) and perpendicular to the optical axis 12a. The imaging element 11 generates an image signal by photoelectrically converting an optical image of the subject formed on the imaging surface 11a by the imaging optical system 12. The image signal generated by the imaging element 11 is converted into image data through various processes in the image processing unit 17 and stored in a memory (storage device) not shown.

[0018] The camera control unit 14 is a calculation means within a main IC (not shown), and controls the overall operation of the imaging device 10 by receiving input operations from a user via an operation means (not shown).

[0019] The imaging optical system 12 is composed of a lens group arranged inside the lens barrel 10b, which forms an image of a light beam incident from the subject side on the imaging surface 11a of the imaging element 11. While FIG. 1 shows three lenses included in the lens group, the number of lenses included in the lens group is not limited to three and may be one or more. In the imaging device 10, in order to position the imaging element 11 with high positional accuracy relative to the optical axis 12a, the imaging element 11 is attached to a base member 13c provided on the main body 10a, and the lens barrel 10b is also connected to the base member 13c. In this case, the imaging element 11 is attached to the base member 13c via the image stabilization unit 20. The lens barrel 10b is also connected to the base member 13c via the lens-side mount member 13b and the main body-side mount member 13a.

[0020] The image stabilization unit 20 corrects image blur caused by vibrations in the imaging device 10 by moving the imaging element 11 in a direction perpendicular to the optical axis or rotating it within the plane 12c perpendicular to the optical axis, thereby enabling a clear image of the subject. Specifically, if the orientation of the imaging device 10 changes relative to the subject during imaging, the imaging position of the subject light beam on the imaging surface 11a of the imaging element 11 changes, causing blur in the image captured through the imaging element 11. In this case, if the change in orientation of the imaging device 10 is sufficiently small, the change in the imaging position is uniform within the imaging surface 11a and can be considered as at least one of translational and rotational movement within the plane 12c perpendicular to the optical axis (image plane blur). Therefore, by performing at least one of translational and rotational movement of the imaging element 11 within the plane 12c perpendicular to the optical axis to cancel out this image plane blur, a clear image of the subject with image blur corrected can be obtained. Note that the imaging element 11 may also be configured to move in a direction perpendicular to the imaging surface when moving in a direction parallel to the imaging surface.

[0021] As will be described later with reference to Figure 2 etc., the image stabilization unit 20 generally has a fixed part 20a, a movable part 20b, and a plurality of drive force generation parts. The fixed part 20a is fixed to the base member 13c, and the movable part 20b holds the image sensor 11. The movable part 20b is supported by the fixed part 20a with three degrees of freedom, and is arranged to be movable and rotatable relative to the fixed part 20a within the plane 12c orthogonal to the optical axis. In other words, the image stabilization unit 20 is configured as a drive device (a so-called XYθ stage) capable of drive control on three axes, and is capable of moving and rotating the image sensor 11 within the plane 12c orthogonal to the optical axis.

[0022] The vibration detection unit 16 is configured with a gyro sensor, an acceleration sensor, etc., and is a shake detection means that detects angular velocity and acceleration in each direction of the imaging device 10 as shake information of the imaging device 10.

[0023] The shake correction control unit 15 calculates the amount of angular change and the amount of movement in each direction of the imaging device 10 based on shake information such as angular velocity and acceleration detected by the vibration detection unit 16. Furthermore, the shake correction control unit 15 calculates a target movement value for the imaging element 11 based on the shake information detected by the vibration detection unit 16, and controls the drive of the shake correction unit 20, thereby controlling the movement of the imaging element 11. Since any known method can be used to calculate the amount of angular change, the amount of movement, and the target movement value based on the shake information, a detailed description thereof will be omitted.

[0024] Next, the detailed configuration of the image stabilization unit 20 will be described.

[0025] 2 and 3 are exploded perspective views of the image stabilization unit 20, with the image stabilization unit 20 viewed from different directions in FIGS. 2 and 3. The image stabilization unit 20 includes a fixed portion 20a (first unit) and a movable portion 20b (second unit). Note that in FIGS. 2 and 3, the movable portion 20b is shown unexploded, while the fixed portion 20a is shown exploded. The fixed portion 20a and the movable portion 20b are each formed by combining one or more members.

[0026] The fixed portion 20a has a fixed member 21, a first rear yoke 22a, a second rear yoke 22b, a first rear magnet group 23a, a second rear magnet group 23b, and a third rear magnet group 23c. The first rear magnet group 23a and the second rear magnet group 23b are fixed to the first rear yoke 22a, and the third rear magnet group 23c is fixed to the second rear yoke 22b, respectively, with an adhesive or the like.

[0027] The fixed part 20a also has a first pillar member 24a, a second pillar member 24b, a third pillar member 24c, a front yoke 25, a first front magnet group 26a, a second front magnet group 26b, and a third front magnet group 26c. The front yoke 25 is fixed to the fixed member 21 with screws via the first pillar member 24a, the second pillar member 24b, and the third pillar member 24c. The first front magnet group 26a, the second front magnet group 26b, and the third front magnet group 26c are each fixed to the front yoke 25 with an adhesive or the like.

[0028] The fixed portion 20a further includes a detection magnet group 27, a detection yoke 28, a restricting member 29, and a cover 30. The detection magnet group 27 is composed of a first detection magnet group 27a, a second detection magnet group 27b, and a third detection magnet group 27c. In this embodiment, the first detection magnet group 27a, the second detection magnet group 27b, and the third detection magnet group 27c are each composed of two magnets magnetized in the optical axis direction (Z direction) and arranged with a gap between them so that they generate magnetic fields in opposite directions. However, this is not limited to this, and a single magnet magnetized with two poles may also be used. Each of the detection magnet group 27 is fixed to the detection yoke 28 with adhesive or the like. The first rear yoke 22a, the second rear yoke 22b, the front yoke 25, and the detection yoke 28 function as yokes, and therefore, magnetic materials are used.

[0029] The fixed part 20a is referred to as the fixed part 20a because it is a unit that serves as a reference for the position when the movable part 20b moves, but the fixed part 20a may also be configured to be held movably so that its position can be adjusted relative to the main body part 10a.

[0030] Furthermore, as will be described later, the fixed portion 20a is configured to support the movable portion 20b via multiple balls, but for example, the base member 13c and the movable portion 20b may be connected by a spring or wire, etc., to support the movable portion 20b.

[0031] 4 and 5 are exploded perspective views of the movable portion 20b, and the direction in which the movable portion 20b is viewed is different between FIG. 4 and FIG.

[0032] The movable section 20b has an imaging element holding member 31 and the imaging element 11, and the imaging element 11 is fixed to the imaging element holding member 31 with screws, adhesive, or the like (not shown). One end of an imaging FPC 60 is connected to the imaging element 11. The other end of the imaging FPC 60 is connected to a control board 70 (FIG. 8), and power is supplied to the imaging element 11 and imaging signals are transmitted via the imaging FPC 60, as will be described in detail later.

[0033] The movable section 20b also has a mask 32a, an infrared absorption filter 32b, and an optical low-pass filter 32c. The mask 32a, the infrared absorption filter 32b, and the optical low-pass filter 32c are held by a holder member 32d and a holder metal plate 32e, and are fixed to the image sensor 11 with an adhesive member or the like. Note that the configuration may not include at least one of the mask 32a, the infrared absorption filter 32b, and the optical low-pass filter 32c.

[0034] The movable part 20b further includes a first coil 33a, a second coil 33b, a third coil 33c, and a driving FPC 34. The driving FPC 34 is electrically connected to the first coil 33a, the second coil 33b, and the third coil 33c. The driving FPC 34 is disposed so as to overlap the first coil 33a, the second coil 33b, and the third coil 33c on the optical axis projection plane (on the XY plane when viewed from the Z direction), and is fixed to the imaging element holding member 31 with an adhesive or the like.

[0035] The imaging element holding member 31 has a first opening 31a, a second opening 31b, and a third opening 31c. The first coil 33a is disposed inside the first opening 31a, the second coil 33b is disposed inside the second opening 31b, and the third coil 33c is disposed inside the third opening 31c.

[0036] Furthermore, the movable part 20b is provided with a connecting member 38, which bridges the opening 31i of the imaging element holding member 31 and is fixed to the imaging element holding member 31 with screws 45 on both sides of the optical axis. In other words, the connecting member 38 is disposed opposite the imaging element 11. The connecting member 38 is provided with contact portions 38i in two locations, and the contact portions 38i come into contact with the restricting members 29 of the fixed part 20a, thereby restricting the movement of the movable part 20b within the plane 12c orthogonal to the optical axis within a predetermined range.

[0037] The thrust yoke 40 and the heat transfer member 80 are fixed to one side of the optical axis orthogonal plane 12c of the connecting member 38, and the detection FPC 36 is fixed to the other side with an adhesive or the like. The thrust yoke 40 is made of a magnetic material to fulfill the role of a yoke.

[0038] The detector 35 is mounted on the detection FPC 36. The detector 35 uses a Hall element or the like, and is made up of a first detector 35a, a second detector 35b, and a third detector 35c.

[0039] The connecting member 38 has a first opening 38a, a second opening 38b, and a third opening 38c. The first detector 35a is disposed inside the first opening 38a, the second detector 35b is disposed inside the second opening 38b, and the third detector 35c is disposed inside the third opening 38c.

[0040] 2 and 3, a first ball 44a, a second ball 44b, and a third ball 44c are provided between the fixed part 20a and the movable part 20b. When the movable part 20b operates, the first ball 44a, the second ball 44b, and the third ball 44c roll, allowing the movable part 20b to move smoothly on the plane 12c orthogonal to the optical axis relative to the fixed part 20a.

[0041] The fixed part 20a and the movable part 20b are combined to form a VCM (voice coil motor), a magnetic circuit for detection, and a magnetic circuit for biasing. These circuits will be described below.

[0042] First, the VCM (voice coil motor) will be explained.

[0043] In the fixed portion 20a, the first rear magnet group 23a and the first front magnet group 26a, which are arranged side by side in the optical axis direction, form a first driving magnetic circuit. Similarly, the second rear magnet group 23b and the second front magnet group 26b form a second driving magnetic circuit, and the third rear magnet group 23c and the third front magnet group 26c form a third driving magnetic circuit. The first driving magnetic circuit and the first coil 33a in the movable portion 20b form a VCM as a first actuator. The second driving magnetic circuit and the second coil 33b in the movable portion 20b form a VCM as a second actuator. The third driving magnetic circuit and the third coil 33c in the movable portion 20b form a VCM as a third actuator. A Lorentz force is generated in a direction perpendicular to the magnetic field generated in the optical axis direction by the first drive magnetic circuit and the current flowing through the first coil 33a, and the resultant direction of the Lorentz force changes depending on the direction of current flow through the first coil 33a. Similar Lorentz forces are generated by the second drive magnetic circuit and second coil 33b, and by the third drive magnetic circuit and third coil 33c. The first and second actuators generate forces (drive forces) approximately parallel to the Y direction, and the sum of these forces generates a translational force in the Y direction, while the difference between these forces generates a rotational force around the optical axis. Meanwhile, the third actuator generates a translational force in the X direction.

[0044] Next, the biasing magnetic circuit and the detecting magnetic circuit will be described with reference to FIGS.

[0045] Fig. 6 is an exploded perspective view of the biasing magnetic circuit and the detecting magnetic circuit. Fig. 7(a) is a projection view of the detecting magnetic circuit when viewed from the subject side in the optical axis direction. Fig. 7(b) is a cross-sectional view taken along the arrow AA in Fig. 7(a).

[0046] First, the biasing magnetic circuit will be described.

[0047] As shown in FIG. 6, the fixed part 20a has a detection magnet group 27, and the movable part 20b has a thrust yoke 40 at a position facing the detection magnet group 27. Regarding the first detection magnet group 27a, as shown in FIG. 7(b), magnetic flux from the first detection magnet group 27a flows through the thrust yoke 40, generating an attractive force between the first detection magnet group 27a and the thrust yoke 40. A similar attractive force is generated between the second detection magnet group 27b and the thrust yoke 40, and between the third detection magnet group 27c and the thrust yoke 40. In this way, the attractive force acting between the detection magnet group 27 of the fixed part 20a and the thrust yoke 40 of the movable part 20b biases the movable part 20b in the optical axis direction (Z direction) relative to the fixed part 20a.

[0048] Next, the detection magnetic circuit will be described.

[0049] The thrust yoke 40, the first detection magnet group 27a, and the detection yoke 28, which are arranged side by side in the optical axis direction, form a first magnetic circuit for detection. Similarly, the thrust yoke 40, the second detection magnet group 27b, and the detection yoke 28 form a second magnetic circuit for detection, and the thrust yoke 40, the third detection magnet group 27c, and the detection yoke 28 form a third magnetic circuit for detection.

[0050] The first detector 35a is disposed opposite the first detection magnet group 27a, the second detector 35b is disposed opposite the second detection magnet group 27b, and the third detector 35c is disposed opposite the third detection magnet group 27c. The thrust yoke 40 is disposed on the opposite side of the detector 35 from the detection magnet group 27 in the optical axis direction. When viewed from the optical axis direction, the thrust yoke 40 is disposed so as to cover the detector 35.

[0051] The first detection magnetic circuit and the first detector 35a will be described with reference to FIG. 7(b). The first detector 35a is disposed between the first detection magnet group 27a and the thrust yoke 40. Therefore, the first detector 35a detects position while the magnetic flux of the first detection magnet group 27a flows through the thrust yoke 40. Similarly, the second detector 35b detects position while the magnetic flux of the second detection magnet group 27b flows through the thrust yoke 40. Furthermore, the third detector 35c detects position while the magnetic flux of the third detection magnet group 27c flows through the thrust yoke 40. In this manner, highly accurate position detection is achieved by detecting position using the detector 35 in the magnetic field formed by the detection magnet group 27 of the fixed part 20a and the thrust yoke 40 of the movable part 20b. In this embodiment, the detection magnet group 27 is disposed in the fixed part 20a, and the detector 35 is disposed in the movable part 20b. When comparing the weights of the detection magnet group 27 and the detector 35, the detector 35 is lighter, and therefore the configuration in which the detector 35 is arranged on the movable part 20b can reduce the driving load on the movable part 20b compared to the configuration in which the detection magnet group 27 is arranged on the movable part 20b.

[0052] It should be noted that a configuration with a thrust yoke 40 can improve the position detection accuracy of the detector 35 because the magnetic field is more stable than a configuration without the thrust yoke 40, but the thrust yoke 40 is not essential for position detection by the detector 35.

[0053] Furthermore, although the thrust yoke 40 is used as both the biasing magnetic circuit and the detecting magnetic circuit in the above-described embodiment, it is also possible to use separate yokes for the biasing magnetic circuit and the detecting magnetic circuit.

[0054] Next, the imaging FPC 60 will be described with reference to FIGS.

[0055] The imaging FPC 60 (two or more wiring members) is composed of a first imaging FPC 61, a second imaging FPC 62, and a third imaging FPC 63. FIG. 8 is an exploded perspective view of the imaging device 10. FIGS. 9, 10, and 11 show the imaging FPCs arranged in the order of assembly. FIG. 9 shows a projection view and a cross-sectional view in the optical axis direction when the first imaging FPC 61 is assembled. FIG. 9(a) shows a projection view, and FIG. 9(b) is a cross-sectional view taken along arrow BB in FIG. 9(a). FIG. 10 shows a projection view and a cross-sectional view in the optical axis direction when the second imaging FPC 62 is assembled. FIG. 10(a) shows a projection view, and FIG. 10(b) is a cross-sectional view taken along arrow CC in FIG. 10(a). FIG. 11 shows a projection view and a cross-sectional view in the optical axis direction when the third imaging FPC 63 is assembled. 11(a) shows a projection view, FIG. 11(b) shows a cross-sectional view taken along the arrow DD shown in FIG. 11(a), and FIG. 11(c) shows a cross-sectional view taken along the arrow EE shown in FIG. 11(a).

[0056] The imaging FPC 60 connects the imaging element 11 inside the image stabilization unit 20 (FIG. 8) to the control board 70 (FIG. 8), but the control board 70 is omitted from FIGS. 9 to 11. Also, in FIGS. 9 to 11, only the cover 30 of the fixed part 20a is shown.

[0057] 9 to 11 will be explained in terms of directions relative to the respective projection planes. Specifically, the -Z direction is rear, the +X direction is left, the +Y direction is up, and the -Y direction is down.

[0058] First, the first imaging FPC 61 will be described with reference to FIG.

[0059] The first imaging FPC 61 is composed of a first wiring portion 61a, a first connection portion 61b, and a second connection portion 61c, and has a power supply wiring electrically connected from the first connection portion 61b to the second connection portion 61c via the first wiring portion 61a. The first imaging FPC 61 is connected to the imaging element 11 at the first connection portion 61b, and is connected to the control board 70 at the second connection portion 61c. In addition to the power supply wiring, the first imaging FPC 61 also has a ground wiring and wiring necessary for the imaging element 11.

[0060] The first wiring portion 61a extends downward from the first connection portion 61b, then curves rearward, passes through the first opening 30a of the cover 30, and extends upward. After that, the first wiring portion 61a bends leftward to a first attachment portion 65, where it is fixed to the cover 30 with double-sided tape or the like. The first wiring portion 61a bends (curves) at the end of the first attachment portion 65 and extends upward. The first wiring portion 61a then curves rearward and connects to the second connection portion 61c. The portion from the first connection portion 61b to the first bend is referred to as a first straight portion 61d, the portion that initially bends is referred to as a first curved portion 61e, and the portion beyond the first curved portion is referred to as a second straight portion 61f. 9, the second linear portion 61f is a straight line when viewed from the X direction, but has two curved portions in the XY plane, and a portion parallel to and perpendicular to the first linear portion 61d. In this embodiment, the second linear portion 61f has two curved portions in the XY plane, but may have two or more curved portions.

[0061] The first imaging FPC 61 is attached to the cover 30, which is a component of the fixed part 20a, by the first attachment part 65. Therefore, the range from the second connection part 61c to the first attachment part 65 is a fixed part, while the first imaging FPC 61 is configured to be movable in accordance with the movement of the movable part 20b in the range from the first connection part 61b to the first attachment part 65. Therefore, in order to reduce the driving load of the FPC when the movable part 20b moves in the X direction, a slit part 61s is provided in the first imaging FPC 61. The width of the first wiring part 61a including the slit part 61s is defined as a first width W1 (FIG. 11(c)).

[0062] The second imaging FPC 62 will be described with reference to FIG.

[0063] The second imaging FPC 62 is composed of a second wiring portion 62a, a third connection portion 62b, and a fourth connection portion 62c, and has a power supply wiring electrically connected from the third connection portion 62b to the fourth connection portion 62c via the second wiring portion 62a. The second imaging FPC 62 is connected to the imaging element 11 at the third connection portion 62b, and is connected to the control board 70 at the fourth connection portion 62c. In addition to the power supply wiring, the second imaging FPC 62 also has a ground wiring and wiring necessary for the imaging element 11, etc.

[0064] The second wiring portion 62a extends downward from the third connection portion 62b, then curves rearward, passes through the first opening 30a of the cover 30, and extends upward. The second wiring portion 62a overlaps the first wiring portion 61a midway and is fixed to the first wiring portion 61a and the cover 30 at the second mounting portion 66 with double-sided tape or the like. The second wiring portion 62a then curves rearward and connects to the fourth connection portion 62c. Here, the portion from the third connection portion 62b to the first curve is referred to as a third straight portion 62d, the portion that first curves is referred to as a second curved portion 62e, and the end of the second curved portion is referred to as a fourth straight portion 62f.

[0065] The second imaging FPC 62 is attached to the cover 30, which is a component of the fixed portion 20a, and the fixed portion of the first imaging FPC 61 (from the second connection portion 61c to the first attachment portion 65) at a second attachment portion 66 located midway. Therefore, the second imaging FPC 62 is configured to be movable in accordance with the movement of the movable portion 20b within the range from the third connection portion 62b to the second attachment portion 66. Therefore, in order to reduce the driving load of the FPC when the movable portion 20b moves in the X direction, a slit portion 62s is provided in the second imaging FPC 62. The width of the second wiring portion 62a including the slit portion 62s is defined as a second width W2 (FIG. 11(c)).

[0066] Next, the third imaging FPC 63 will be described with reference to FIG.

[0067] The third imaging FPC 63 is composed of a third wiring portion 63a, a fifth connection portion 63b, and a sixth connection portion 63c, and a high-speed transmission wiring is formed that is electrically connected from the fifth connection portion 63b to the sixth connection portion 63c via the third wiring portion 63a. For example, a differential transmission wiring is adopted as this high-speed transmission wiring. The imaging device 10 transmits imaging signals between the imaging element 11 and the control board 70 using this high-speed transmission wiring, thereby supporting high-speed transmission of imaging signals. The third imaging FPC 63 is connected to the imaging element 11 at the fifth connection portion 63b and to the control board 70 at the sixth connection portion 63c. In addition to the high-speed transmission wiring, the third imaging FPC 63 also has ground wiring and wiring necessary for the imaging element 11.

[0068] The third wiring portion 63a extends upward from the fifth connection portion 63b, then curves rearward, passes through the second opening 30b of the cover 30, and extends downward. The third imaging FPC 63 is fixed to the cover 30 at a third attachment portion 67 with double-sided tape or the like. The third wiring portion 63a then curves rearward and connects to the sixth connection portion 63c. Here, the portion from the fifth connection portion 63b to the first curve is referred to as a fifth straight portion 63d, the portion that first curves is referred to as a third curved portion 63e, and the end of the third curved portion 63e is referred to as a sixth straight portion 63f.

[0069] The third imaging FPC 63 is attached to the cover 30, which is a component of the fixed part 20a, at a third attachment part 67 located midway, so that the third imaging FPC 63 is configured to be movable in association with movement of the movable part 20b within the range from the fifth connection part 63b to the third attachment part 67. Therefore, in order to reduce the driving load of the FPC when the movable part 20b moves in the X direction, a slit part 63s is provided in a part of the third imaging FPC 63 that can move in association with movement of the movable part 20b. The width of the third wiring part 63a including the slit part 63s is defined as a third width W3 (FIG. 11(c)).

[0070] Next, the relationship between the third imaging FPC 63 and the first imaging FPC 61 will be described.

[0071] 11(a), the third imaging FPC 63 (second wiring member) and the first imaging FPC 61 (first wiring member) are arranged to overlap when viewed from the back. Here, as shown in FIG. 11(c), the overlap amount in the X direction between the third imaging FPC 63 and the first imaging FPC 61 is represented by W4 (a predetermined amount).

[0072] If the total width of the imaging FPC is WF1, it is expressed as follows: WF1=W1+W2+W3 On the other hand, if the total width of the imaging FPC when viewed from the back is W6, it is expressed as follows: W6 = W1 + W2 + W3 - W4

[0073] As described above, by partially overlapping the third imaging FPC 63 and the first imaging FPC 61, the total width W6 of the imaging FPC when viewed from the rear can be made smaller by W4 than the total width WF1 of the imaging FPC.

[0074] 11(b), the first imaging FPC 61 (first wiring member) and the third imaging FPC 63 (second wiring member) are spaced apart by Z1 in the optical axis direction (Z direction). In this way, the first imaging FPC 61 and the third imaging FPC 63 overlap by W4 when viewed from the rear (optical axis direction) and are spaced apart in the optical axis direction, thereby preventing interference between the first imaging FPC 61 and the third imaging FPC 63 when the movable part 20b is driven.

[0075] In the overlapping portion by W4, the first imaging FPC 61 and the third imaging FPC 63 extend in different directions (+Y direction and −Y direction) in this embodiment, but are not limited to this. For example, in a second embodiment described later, when the first imaging FPC 161 and the third imaging FPC 163 are viewed from behind, the first imaging FPC 161 and the third imaging FPC 163 are spaced apart in the optical axis direction and extend in approximately the same direction (+Y direction) in the overlapping portion by W14 (a predetermined amount).

[0076] In addition, in this embodiment, the first imaging FPC 61 and the third imaging FPC 63 are overlapped by W4 when viewed from the rear, but this is not limiting. For example, as in a second embodiment described later, the first imaging FPC 161 and the third imaging FPC 163 may be overlapped by W14 when viewed from the rear, and the second imaging FPC 162 and the third imaging FPC 163 may be overlapped by W15.

[0077] With the above-described configuration, even if the total width (WF1) of the wiring portion of the imaging FPC 60 is wide, the imaging FPC 60 can be routed within the limited space inside the imaging device 10. This makes it possible to prevent the image stabilization unit 20 and the imaging device 10 from becoming larger.

[0078] Next, the heat dissipation path of the image sensor 11 will be described with reference to Figs. 8, 12, and 13. Fig. 12 shows a projection view and a cross-sectional view in the optical axis direction of the components of the heat dissipation path of the image sensor 11. Fig. 12(a) shows the projection view, and Fig. 12(b) is a cross-sectional view taken along the arrow FF shown in Fig. 12(a). Fig. 13 shows a projection view and a cross-sectional view in the optical axis direction of the image stabilization unit 20. Fig. 13(a) shows the projection view, and Fig. 13(b) is a cross-sectional view taken along the arrow GG shown in Fig. 13(a).

[0079] Heat generated by the imaging element 11 is transferred to the imaging element substrate 11b, which is substantially rectangular and fixes the imaging element 11 in a die-bonding process. The imaging element substrate 11b is a rigid substrate and has an area that partially overlaps with the imaging element holding member 31, and heat is transferred by surface contact in that area.

[0080] Magnesium die-cast, aluminum die-cast, or the like is used for the imaging element holding member 31. The imaging element holding member 31 transfers heat transferred from the imaging element board 11b to the connecting member 38 at three fixing points secured by screws 45 (FIG. 5).

[0081] An aluminum alloy or the like is used for the connecting member 38. A heat transfer member 80 is connected to the connecting member 38, and a support member 43 is connected to the heat transfer member 80.

[0082] 10(b), the support member 43 is a member connected to the base member 13c, and the connecting member 38 is movable relative to the support member 43. That is, one end of the heat transfer member 80 is connected to the connecting member 38 of the movable part 20b, and the other end is connected to the support member 43 of the fixed part 20a. Details of the heat transfer member 80 will be described later.

[0083] As a result, heat generated by the imaging element 11 and transferred from the imaging element holding member 31 to the connecting member 38 is transferred to the support member 43 via the heat transfer member 80. The heat transferred to the support member 43 is transferred to the base member 13c, and is finally dissipated from the base member 13c to the outside air. An aluminum alloy or the like is used for the support member 43, and magnesium die-casting, aluminum die-casting, or the like is used for the base member 13c.

[0084] Next, the routing of the heat transfer member 80 will be described.

[0085] 12(a), heat transfer member 80 is composed of first heat transfer member 81 and second heat transfer member 82 that are provided at positions facing each other when viewed in the Z direction. Note that in Fig. 12 and Fig. 13, the directions will be described relative to the projection plane. For example, the -Z direction is rear, the +X direction is left, and the -X direction is right.

[0086] The first heat transfer member 81 is composed of a first mounting portion 81a, a first heat transfer portion 81b, and a second mounting portion 81c. The first heat transfer member 81 is fixed to the connecting member 38 at the first mounting portion 81a with double-sided tape or the like. The first heat transfer member 81 extends to the right from the first mounting portion 81a, then curves backward, passes through the first opening 30a of the cover 30 as shown in FIG. 13(a), and then passes through the opening 43a of the support member 43 as shown in FIG. 12(a), extends to the left, and connects to the second mounting portion 81c. Here, the section from the first mounting portion 81a to the first curve is referred to as a first straight portion 81d, the first curved portion is referred to as a first curved portion 81e, and the end of the first curved portion is referred to as a second straight portion 81f. The first heat transfer member 81 is fixed to the support member 43 at the second mounting portion 81c with double-sided tape or the like.

[0087] The second heat transfer member 82 is composed of a third mounting portion 82a, a second heat transfer portion 82b, and a fourth mounting portion 82c. The second heat transfer member 82 is fixed to the connecting member 38 at the third mounting portion 82a with double-sided tape or the like. The second heat transfer member 82 extends leftward from the third mounting portion 82a, then curves rearward, passes through the first opening 30a of the cover 30 as shown in FIG. 13(a), and then passes through the notch 43b of the support member 43 as shown in FIG. 12(a), extends rightward, and connects to the fourth mounting portion 82c. Here, the section from the third mounting portion 82a to the first curve is referred to as a third straight portion 82d, the first curved portion is referred to as a second curved portion 82e, and the end of the second curved portion is referred to as a fourth straight portion 82f. The second heat transfer member 82 is fixed to the support member 43 at the fourth mounting portion 82c with double-sided tape or the like.

[0088] One end of the heat transfer member 80 is connected to the connecting member 38 of the movable part 20b, and the other end is connected to the support member 43 of the fixed part 20a. This allows the heat transfer member 80 to move as the movable part 20b moves. Therefore, to avoid hindering the movement of the movable part 20b, a flexible sheet member with a thickness of approximately 0.1 mm, such as a graphite sheet, is used for the heat transfer member 80. The graphite sheet has a higher thermal conductivity than the connecting member 38, allowing the heat transfer member 80 to efficiently transfer heat from the connecting member 38 to the support member 43. Furthermore, to reduce the driving load on the heat transfer member 80 when the movable part 20b moves in the Y direction, the first heat transfer member 81 is provided with a slit 81s, and the second heat transfer member 82 is provided with a slit 82s.

[0089] Next, the routing of the imaging FPC 60 (first imaging FPC 61, second imaging FPC 62, third imaging FPC 63) and the heat transfer member 80 (first heat transfer member 81, second heat transfer member 82) will be described with reference to FIG.

[0090] As described above, the first imaging FPC 61 and the second imaging FPC 62 extend downward from the imaging element 11 away from the optical axis 12a, then curve rearward and extend upward. The third imaging FPC 63 extends upward from the imaging element 11 away from the optical axis 12a, then curve rearward and extend downward. The first heat transfer member 81 extends rightward from the connecting member 38 away from the optical axis 12a, then curve rearward and extend leftward. The second heat transfer member 82 extends leftward from the connecting member 38 away from the optical axis 12a, then curve rearward and extend rightward.

[0091] 11(a), the imaging FPC 60 is arranged so that the width direction of the wiring portions is aligned with the longitudinal direction (X direction) of the imaging element 11, and runs in the lateral direction (Y direction) of the imaging element 11. On the other hand, the heat transfer member 80 runs in the longitudinal direction (X direction) of the imaging element 11. By arranging the imaging FPCs 60 so that the width direction of the wiring portions is aligned with the longitudinal direction of the imaging element 11 in this way, it becomes possible to arrange an FPC with a wider total width of the wiring portions as the imaging FPC 60, compared to when the width direction of the wiring portions is aligned with the lateral direction of the imaging element 11.

[0092] Furthermore, the imaging FPC 60 and the heat transfer member 80 are configured so that, starting from the mounting portion of the movable portion 20b, they extend outward (away from the optical axis 12a) in four different directions (up, down, left, and right), then curve rearward and extend inward. Now, with reference to FIG. 13(b), attention will be focused on the first imaging FPC 61 and the first heat transfer member 81. When viewed in the optical axis direction (Z direction), the first straight portion 61d of the first imaging FPC 61, the first straight portion 81d of the first heat transfer member 81, the second straight portion 61f of the first imaging FPC 61, and the second straight portion 81f of the first heat transfer member 81 are arranged in this order. On the other hand, when viewed from the back, the first straight portion 61d of the first imaging FPC 61, the first straight portion 81d of the first heat transfer member 81, the second straight portion 61f of the first imaging FPC 61, and the second straight portion 81f of the first heat transfer member 81 are in a relationship in which at least a portion of each overlap.

[0093] Next, attention will be paid to the second imaging FPC 62 and the second heat transfer member 82. When viewed in the optical axis direction, they are arranged in the following order: the third straight portion 62d of the second imaging FPC 62, the third straight portion 82d of the second heat transfer member 82, the fourth straight portion 62f of the second imaging FPC 62, and the fourth straight portion 82f of the second heat transfer member 82. On the other hand, when viewed from the rear, the third straight portion 62d of the second imaging FPC 62, the third straight portion 82d of the second heat transfer member 82, the fourth straight portion 62f of the second imaging FPC 62, and the fourth straight portion 82f of the second heat transfer member 82 are overlapping with each other.

[0094] As described above, by arranging the imaging FPC 60 and the heat transfer member 80, the imaging FPC 60 and the heat transfer member 80 can be routed compactly in a limited space by increasing the radius of curvature of the curved portions, thereby reducing the load during movement. This makes it possible to suppress an increase in the size of the image stabilization unit 20 and the imaging device 10, while simultaneously achieving an increase in the number of signals that accompanies the high performance of the imaging element 11 and improved heat dissipation performance. Furthermore, by routing the imaging FPC 60 and the heat transfer member 80 in different directions, it is also possible to distribute the drive load on the imaging FPC 60 and the heat transfer member 80 when the movable part 20b moves.

[0095] In this embodiment, the imaging FPC 60 and the heat transfer member 80 are arranged alternately when viewed in the optical axis direction, but this is not necessarily the case. For example, the first linear portion 61d of the first imaging FPC 61, the first linear portion 81d of the first heat transfer member 81, the second linear portion 81f of the first heat transfer member 81, and the second linear portion 61f of the first imaging FPC 61 may be arranged in this order.

[0096] Furthermore, in this embodiment, the first heat transfer member 81 and the second heat transfer member 82 are described as separate components, but they may be an integrated component extending laterally from the connecting member as a starting point.

[0097] Furthermore, in this embodiment, the imaging FPC 60 (the first imaging FPC 61, the second imaging FPC 62, and the third imaging FPC 63) is configured to be routed in the vertical direction, and the heat transfer members 80 (the first heat transfer member 81 and the second heat transfer member 82) are configured to be routed in the horizontal direction, but this is not necessarily limited to this. The combination of the directions in which the imaging FPC 60 and the heat transfer members 80 are routed can be any combination, such as having the imaging FPC 60 routed in the horizontal direction and the heat transfer members 80 routed in the vertical direction, or having the imaging FPC 60 routed in the left / upward direction and the heat transfer members 80 routed in the right / downward direction.

[0098] (Second embodiment) The second embodiment of the present invention differs from the first embodiment mainly in that it includes first, second, and third imaging FPCs 161, 162, and 163, each having a different configuration, instead of the first, second, and third imaging FPCs 61, 62, and 63 of the first embodiment. This embodiment will be described below with reference to Fig. 14. Note that in this embodiment, the same components as those in the imaging device 10 of the first embodiment are designated by the same reference numerals, and redundant description will be omitted.

[0099] Fig. 14 shows a projection view and a cross-sectional view in the optical axis direction of the imaging FPC 160 of the second embodiment. Fig. 14(a) shows the projection view, Fig. 14(b) shows a cross-sectional view taken along arrow HH in Fig. 14(a), Fig. 14(c) shows a cross-sectional view taken along arrow II in Fig. 14(a), and Fig. 14(d) shows a cross-sectional view taken along arrow JJ in Fig. 14(a). Note that Fig. 14 will be explained in terms of directions relative to the projection view. Specifically, the -Z direction is rearward, the +X direction is leftward, the +Y direction is upward, and the -Y direction is downward.

[0100] As shown in FIG. 14( d ), the imaging FPC 160 is made up of a first imaging FPC 161 , a second imaging FPC 162 , and a third imaging FPC 163 .

[0101] First, the first imaging FPC 161 will be described with reference to FIG.

[0102] The first imaging FPC 161 is composed of a first wiring portion 161a, a first connection portion 161b, and a second connection portion 161c, and has a power supply wiring electrically connected from the first connection portion 161b to the second connection portion 161c via the first wiring portion 161a. The first imaging FPC 161 is connected to the imaging element 11 at the first connection portion 161b, and is connected to the control board 70 at the second connection portion 161c. In addition to the power supply wiring, the first imaging FPC 161 also has a ground wiring and wiring necessary for the imaging element 11 wired thereon.

[0103] 14(c), the first wiring portion 161a extends downward from the first connecting portion 161b, then curves rearward at a first curved portion 161d and extends upward. Thereafter, the first wiring portion 161a curves rearward at a second curved portion 161e and is connected to the second connecting portion 161c.

[0104] The first imaging FPC 161 is configured to be movable in the range from the first connection portion 161b to the second connection portion 161c in accordance with the movement of the movable portion 20b. Therefore, in order to reduce the drive load of the first imaging FPC 161 when the movable portion 20b moves in the X direction, a slit portion 161s is provided in the first imaging FPC 161. The width of the first wiring portion 161a including the slit portion 161s is defined as W11 (FIG. 14(d)). Also, as shown in FIG. 14(c), the height of the first connection portion 161b is defined as h1, the height of the second connection portion 161c is defined as h2, the inner diameter of the first curved portion 161d is defined as R1, and the inner diameter of the second curved portion 161e is defined as R2.

[0105] Next, the second imaging FPC 162 will be described with reference to FIG.

[0106] The second imaging FPC 162 is composed of a second wiring portion 162a, a third connection portion 162b, and a fourth connection portion 162c, and has a power supply wiring electrically connected from the third connection portion 162b to the fourth connection portion 162c via the second wiring portion 162a. The second imaging FPC 162 is connected to the imaging element 11 at the third connection portion 162b, and is connected to the control board 70 at the fourth connection portion 162c. In addition to the power supply wiring, the second imaging FPC 162 also has a ground wiring and wiring necessary for the imaging element 11 wired thereon.

[0107] 14(b), the second wiring portion 162a extends downward from the third connecting portion 162b, then curves rearward at a third curved portion 162d and extends upward. Thereafter, the second wiring portion 162a curves rearward at a fourth curved portion 162e and is connected to the fourth connecting portion 162c.

[0108] The second imaging FPC 162 is configured to be movable in the range from the third connection portion 162b to the fourth connection portion 162c in accordance with the movement of the movable portion 20b. Therefore, in order to reduce the drive load of the second imaging FPC 162 when the movable portion 20b moves in the X direction, a slit portion 162s is provided in the second imaging FPC 162. The width of the second wiring portion 162a including the slit portion 162s is defined as W12 (FIG. 14(d)). Also, as shown in FIG. 14(b), the height of the third connection portion 162b is defined as h3, the height of the fourth connection portion 162c is defined as h4, the inner diameter of the third curved portion 162d is defined as R3, and the inner diameter of the fourth curved portion 162e is defined as R4.

[0109] Next, the third imaging FPC 163 will be described with reference to FIG.

[0110] The third imaging FPC 163 is composed of a third wiring portion 163a, a fifth connection portion 163b, and a sixth connection portion 163c, and a high-speed transmission wiring is formed that is electrically connected from the fifth connection portion 163b to the sixth connection portion 163c via the third wiring portion 163a. ​​For example, a differential transmission wiring is adopted as this high-speed transmission wiring. The imaging device 10 transmits imaging signals between the imaging element 11 and the control board 70 using this high-speed transmission wiring, thereby supporting high-speed transmission of imaging signals. In addition to the high-speed transmission wiring, the third imaging FPC 163 also has a ground wiring and wiring necessary for the imaging element 11.

[0111] 14(b) and 14(c), the third wiring portion 163a extends downward from the fifth connecting portion 163b, then curves rearward at a fifth curved portion 165d and extends upward. Thereafter, the third wiring portion 163a curves rearward at a sixth curved portion 163e and is connected to the sixth connecting portion 163c.

[0112] The third imaging FPC 163 is configured to be movable in the range from the fifth connecting portion 163b to the sixth connecting portion 163c in accordance with the movement of the movable portion 20b. Therefore, in order to reduce the drive load of the third imaging FPC 163 when the movable portion 20b moves in the X direction, a slit portion 163s is provided in the third imaging FPC 163. The width of the third wiring portion 163a including the slit portion 163s is defined as W13 (FIG. 14(d)). Also, as shown in FIGS. 14(b) and 14(c), the height of the fifth connecting portion 163b is defined as h5, the height of the sixth connecting portion 163c is defined as h6, the inner diameter of the fifth curved portion 163d is defined as R5, and the inner diameter of the sixth curved portion 163e is defined as R6.

[0113] 14(d), when viewed from the rear, the third imaging FPC 163 and the first imaging FPC 161 are routed approximately parallel to the short side direction of the imaging element 11 and overlap by a width W14. When viewed from the rear, the third imaging FPC 163 and the second imaging FPC 162 are also routed approximately parallel to the short side direction of the imaging element 11 and overlap by a width W15.

[0114] Here, if the total width of the imaging FPC 160 is WF11, it is expressed as follows. WF11=W11+W12+W13 On the other hand, if the total width of the imaging FPC 160 when viewed from the rear is W16, it is expressed as follows. W16 = W11 + W12 + W13 - (W14 + W15)

[0115] Furthermore, if the width (length in the X direction (long side direction)) of the imaging element 11 fixed to the imaging element substrate 11b is W17 and the width (length in the X direction) of the imaging element substrate 11b is W18, the following relationship holds in this embodiment. W16 <W17<W18<WF11

[0116] As described above, the third imaging FPC 163 and the first imaging FPC 161, and the third imaging FPC 163 and the second imaging FPC 162 are overlapped with each other. As a result, the imaging FPC 160, which is wider than the imaging element 11, is accommodated in a position where it overlaps with the imaging element 11 in the width direction of the imaging element 11 when viewed from the optical axis direction.

[0117] Also, the third imaging FPC 163 and the first imaging FPC 161, and the third imaging FPC 163 and the second imaging FPC 162 are overlapped with each other. As a result, the imaging FPC 160, which is wider than the imaging element substrate 11b, is accommodated in a position where it overlaps with the imaging element substrate 11b in the width direction of the imaging element substrate 11b when viewed from the optical axis direction.

[0118] Next, the relationship in the optical axis direction of the imaging FPC 160 will be described with reference to Figures 14(b) and 14(c). Figure 14(b) is a cross-sectional view of the overlapping portion between the third imaging FPC 163 and the second imaging FPC 162, and Figure 14(c) is a cross-sectional view of the overlapping portion between the third imaging FPC 163 and the first imaging FPC 161.

[0119] 14(b), the height h5 of the fifth connection portion 163b of the third imaging FPC 163 is set higher than the height h3 of the third connection portion 162b of the second imaging FPC 162, and the heights h3 and h5 are set differently. Furthermore, the inner diameter R5 (second inner diameter) of the fifth curved portion 163d of the third imaging FPC 163 is set smaller than the inner diameter R3 (first inner diameter) of the third curved portion 162d of the second imaging FPC 162, and the inner diameters R3 and R5 are set differently. Furthermore, the height h6 of the sixth connection portion 163c of the third imaging FPC 163 is set higher than the height h4 of the fourth connection portion 162c of the second imaging FPC 162. Furthermore, the inner diameter R6 of the sixth curved portion 163e of the third imaging FPC 163 is set larger than the inner diameter R4 of the fourth curved portion 162e of the second imaging FPC 162. With the above configuration, the third imaging FPC 163 and the second imaging FPC 162 are spaced apart from each other by Z11 in the optical axis direction.

[0120] 14(c), the height h5 of the fifth connection portion 163b of the third imaging FPC 163 is set to be higher than the height h1 of the first connection portion 161b of the first imaging FPC 161. Furthermore, the inner diameter R5 of the fifth curved portion 163d of the third imaging FPC 163 is set to be smaller than the inner diameter R1 of the first curved portion 161d of the first imaging FPC 161. Furthermore, the height h6 of the sixth connection portion 163c of the third imaging FPC 163 is set to be higher than the height h2 of the second connection portion 161c of the first imaging FPC 161. Furthermore, the inner diameter R6 of the sixth curved portion 163e of the third imaging FPC 163 is set to be larger than the inner diameter R2 of the second curved portion 161e of the first imaging FPC 161. With the above configuration, the third imaging FPC 163 and the first imaging FPC 161 are spaced apart from each other by Z12 in the optical axis direction.

[0121] With the above configuration, even when the third imaging FPC 163 and the second imaging FPC 162 overlap when viewed from the rear, the third imaging FPC 163 and the second imaging FPC 162 are spaced apart in the optical axis direction, thereby preventing interference between them when the movable part 20b is driven. Furthermore, even when the third imaging FPC 163 and the first imaging FPC 161 overlap when viewed from the rear, the third imaging FPC 163 and the first imaging FPC 161 are spaced apart in the optical axis direction, thereby preventing interference between them when the movable part 20b is driven.

[0122] With the above-described configuration, even if the total width (WF11) of the wiring portion of the imaging FPC 160 is wide, the imaging FPC 160 can be routed within the limited space inside the imaging device 10. This makes it possible to prevent the image stabilization unit 20 and the imaging device 10 from becoming larger.

[0123] 14(d), in this embodiment, the imaging FPC 160 is disposed so as to extend substantially symmetrically in the left-right direction with respect to the optical axis 12a. Specifically, the third imaging FPC 163 is disposed so as to extend substantially symmetrically with respect to the optical axis 12a. The first imaging FPC 161 and the second imaging FPC 162 are disposed so as to extend substantially symmetrically in the left-right direction with respect to the optical axis 12a. Furthermore, the first imaging FPC 161 and the second imaging FPC 162 have substantially the same width, thickness, and length.

[0124] 14(a), when the movable part 20b is moved downward, an upward restoring force F1 is applied to the first imaging FPC 161, an upward restoring force F2 is applied to the second imaging FPC 162, and an upward restoring force F3 is applied to the third imaging FPC 163. Here, with the above configuration, the restoring forces F1 and F2 are substantially the same and are applied approximately symmetrically with respect to the center of the optical axis, making it possible to suppress the generation of unnecessary rotational force by the restoring forces.

[0125] In this embodiment, the imaging FPC 160 is disposed so as to extend substantially symmetrically in the left-right direction, but it may be disposed so as to extend substantially symmetrically in the up-down direction.

[0126] In general, electromagnetic noise may be generated from high-speed transmission wiring. If electromagnetic noise enters other FPCs, it may adversely affect camera functionality. In this embodiment, the third imaging FPC 163 includes high-speed transmission wiring, but the high-speed transmission wiring is provided in a portion excluding the overlapping portion (W14) with the first imaging FPC 161 and the overlapping portion (W15) with the second imaging FPC 162. Meanwhile, ground wiring is provided in the overlapping portion (W14) with the first imaging FPC 161 and the overlapping portion (W15) with the second imaging FPC 162. This prevents electromagnetic noise from the third imaging FPC 163 from entering the first imaging FPC 161 and the second imaging FPC 162.

[0127] The present invention has been described in detail above based on its preferred embodiments, but the present invention is not limited to these specific embodiments, and various forms within the scope of the invention that do not deviate from the gist of the invention are also included in the present invention.

[0128] The disclosure of this embodiment includes the following configuration. (Configuration 1) An imaging device comprising: a first unit; a second unit in which an imaging element is arranged so as to be movable relative to the first unit in a plane perpendicular to the optical axis of an imaging optical system; and two or more wiring members electrically connecting the first unit and the second unit, wherein the two or more wiring members include a first wiring member and a second wiring member, and the first wiring member and the second wiring member overlap by a predetermined amount when viewed from the optical axis direction of the imaging optical system and are spaced apart in the optical axis direction at the portion where they overlap by the predetermined amount. (Configuration 2) The imaging device according to configuration 1, wherein the first wiring member and the second wiring member extend in substantially the same direction in the portion where they overlap by the predetermined amount. (Configuration 3) The imaging device according to configuration 1, wherein the first wiring member and the second wiring member extend in different directions in the portion where they overlap by the predetermined amount. (Configuration 4) An imaging device described in any one of configurations 1 to 3, characterized in that the two or more wiring members have curved portions, and a first inner diameter of the curved portion of the first wiring member and a second inner diameter of the curved portion of the second wiring member are different. (Configuration 5) An imaging device described in any one of configurations 1 to 4, characterized in that the first unit includes a control board, the two or more wiring members electrically connect the imaging element and the control board, and the height of the connection portion of the first wiring member to the imaging element is different from the height of the connection portion of the second wiring member to the imaging element. (Configuration 6) An imaging device described in any one of configurations 1 to 5, characterized in that the imaging element has an approximately rectangular shape when viewed from the optical axis direction, the first wiring member and the second wiring member extend approximately parallel to the short side direction of the imaging element in the overlapping portion by the specified amount, and the two or more wiring members are located in a position overlapping with the imaging element in the long side direction of the imaging element when viewed from the optical axis direction. (Configuration 7) An imaging device described in any one of configurations 1 to 6, characterized in that an imaging element substrate that fixes the imaging element has an approximately rectangular shape when viewed from the optical axis direction, the first wiring member and the second wiring member extend approximately parallel to the short side direction of the imaging element substrate in the overlapping portion by the specified amount, and the two or more wiring members are located in a position that overlaps with the imaging element substrate in the long side direction of the imaging element substrate when viewed from the optical axis direction. (Configuration 8) The imaging device according to any one of configurations 1 to 7, wherein the two or more wiring members extend substantially symmetrically with respect to the optical axis. (Configuration 9) An imaging device described in any one of configurations 1 to 8, characterized in that at least one of the first wiring member and the second wiring member includes differential transmission wiring and ground wiring, and in the first wiring member and the second wiring member, the ground wiring is wired in the portion that overlaps by the predetermined amount, and the differential transmission wiring is wired in the portion excluding the portion that overlaps by the predetermined amount. [Explanation of symbols]

[0129] 10. Imaging device 11 Image sensor 20a Fixed part 20b Moving part 60,160 Imaging FPC 61,161 First imaging FPC 62,162 Second imaging FPC 63,163 Third Imaging FPC

Claims

1. A first unit; a second unit in which an image sensor is disposed so as to be movable relative to the first unit within a plane perpendicular to the optical axis of the image pickup optical system; two or more wiring members electrically connecting the first unit and the second unit; the two or more wiring members include a first wiring member and a second wiring member, An imaging device characterized in that the first wiring member and the second wiring member overlap by a predetermined amount when viewed from the optical axis direction of the imaging optical system and are spaced apart in the optical axis direction at the portion where they overlap by the predetermined amount.

2. 2. The imaging device according to claim 1, wherein the first wiring member and the second wiring member extend in substantially the same direction in the portion where they overlap by the predetermined amount.

3. 2. The imaging device according to claim 1, wherein the first wiring member and the second wiring member extend in different directions in the portion where they overlap by the predetermined amount.

4. the two or more wiring members each have a curved portion; 2. The imaging device according to claim 1, wherein a first inner diameter of the curved portion of the first wiring member is different from a second inner diameter of the curved portion of the second wiring member.

5. the first unit includes a control board; the two or more wiring members electrically connect the imaging element and the control board; 2. The imaging device according to claim 1, wherein a height of the connection portion of the first wiring member to the imaging element is different from a height of the connection portion of the second wiring member to the imaging element.

6. the imaging element has a substantially rectangular shape when viewed from the optical axis direction, The imaging device described in claim 1, characterized in that the first wiring member and the second wiring member extend approximately parallel to the short side direction of the imaging element in the overlapping portion by the specified amount, and the two or more wiring members are located in a position overlapping with the imaging element in the long side direction of the imaging element when viewed from the optical axis direction.

7. an imaging element substrate on which the imaging element is fixed has a substantially rectangular shape when viewed from the optical axis direction; 2. The imaging device according to claim 1, wherein the first wiring member and the second wiring member extend substantially parallel to the short side direction of the imaging element substrate in the overlapping portion by the predetermined amount, and the two or more wiring members are accommodated in a position overlapping with the imaging element substrate in the long side direction of the imaging element substrate as viewed from the optical axis direction.

8. 2. The imaging device according to claim 1, wherein the two or more wiring members extend substantially symmetrically with respect to the optical axis.

9. At least one of the first wiring member and the second wiring member includes a differential transmission line and a ground line, In the first wiring member and the second wiring member, The ground wiring is wired in the overlapping portion by the predetermined amount, 2. The imaging device according to claim 1, wherein the differential transmission wiring is routed in a portion excluding the portion overlapping by the predetermined amount.

Images