Optical module driving device

Abstract

An optical module driving device (101) capable of correcting hand jitter even in a case where the hand jitter is large, includes a first swing member (2); a second swing member (7) coupled to the first swing member (2) in a manner that the first swing member (2) is able to swing around a first swing axis (AX1); a fixed side member (FB) coupled to the second swing member (7) in a manner that the second swing member (7) is able to swing around a second swing axis (AX2); and a driving section (DM) that swings the first swing member (2) relative to the fixed side member (FB) to tilt an optical axis (OA). The driving section (DM) includes a first driving section (DM1) that swings the first swing member (2) around the first swing axis (AX1), and a second driving section (DM2) that swings the second swing member (7) around the second swing axis (AX2). The optical module driving device includes an assisting mechanism (AM) that assists driving of at least one of the first driving section (DM1) and the second driving section (DM2).

Description

Technical Field

[0001] This application relates to an optical module driving device. Background Technology

[0002] Previously, camera units equipped with an optical module and a shake correction device (optical module drive device) were known. The optical module has a lens and an imaging element, and the shake correction device is used to correct the shaking of the optical image formed on the imaging element through the lens (see Patent Document 1). The optical module drive device has an inner frame that fixes the optical module inside, a middle frame that supports the inner frame from the outside and is able to swing about a first axis, an outer frame that supports the middle frame from the outside and is able to swing about a second axis, and a voice coil motor located at the bottom of the inner frame and outside the outer frame.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2011-66580 Summary of the Invention

[0006] The technical problem that the invention aims to solve

[0007] Since the aforementioned optical module drive device uses a voice coil motor, there are concerns that it may not be able to handle situations with significant hand tremors.

[0008] Therefore, it is desirable to provide an optical module drive that can correct hand tremors even when the amount of hand tremor is large.

[0009] Means for solving technical problems

[0010] An optical module driving device according to one embodiment of the present invention includes: a first oscillating member capable of holding an optical module having a lens body and an imaging element; a second oscillating member connected to the first oscillating member such that the first oscillating member can oscillate about a first axis intersecting the optical axis direction; a fixed side member connected to the second oscillating member such that the second oscillating member can oscillate about a second axis intersecting the optical axis direction and perpendicular to the axial direction of the first axis; and a driving unit that causes the first oscillating member to oscillate relative to the fixed side member to tilt the optical axis of the lens body. In the optical module driving device, the driving unit has a first driving unit that causes the first oscillating member to oscillate about the first axis, and a second driving unit that causes the second oscillating member to oscillate about the second axis. The optical module driving device includes an auxiliary mechanism that assists in driving at least one of the first driving unit and the second driving unit.

[0011] Invention Effects

[0012] The aforementioned optical module drive device can correct hand tremors even when the amount of hand tremor is large. Attached Figure Description

[0013] Figure 1A It is an exploded 3D view of the camera device.

[0014] Figure 1B It is a 3D diagram of the camera assembly.

[0015] Figure 2 This is an exploded 3D view of the optical module drive device.

[0016] Figure 3 This is an exploded 3D view of the swing mechanism.

[0017] Figure 4A This is a front view of the shape memory alloy wire installed on the metal component.

[0018] Figure 4B This is a left view of the shape memory alloy wire installed on the metal component.

[0019] Figure 5A This is a top-view perspective view of the first swinging component.

[0020] Figure 5B This is a three-dimensional view of the first swinging component from below.

[0021] Figure 6A This is a top-view perspective view of the second swinging component.

[0022] Figure 6B This is a three-dimensional view of the second swinging component from below.

[0023] Figure 7 This is a top-view perspective view of the base component.

[0024] Figure 8A This is a top-view perspective view of the leaf spring, the first swinging component, the second swinging component, and the base component.

[0025] Figure 8B This is a top-view perspective view of the leaf spring, the first swinging component, the second swinging component, and the base component.

[0026] Figure 8C This is a left view of the leaf spring, the first swinging component, the second swinging component, and the base component.

[0027] Figure 9A It is a top-view perspective view of the metal components, leaf springs, shape memory alloy wires, inner conductive components, and outer conductive components.

[0028] Figure 9B yes Figure 9AA magnified view of a portion of the image.

[0029] Figure 9C Figure 9A A magnified view of a portion of the image.

[0030] Figure 10 This is a right view of the first swing component, the second swing component, and the base component.

[0031] Figure 11 This is a front view of the first swinging component, the second swinging component, and the base component, which are shown in cross-section as a part of the base component.

[0032] Figure 12A This is a cross-sectional view of the cover component and the magnetic component.

[0033] Figure 12B This is a cross-sectional view of the cover component and the magnetic component. Detailed Implementation

[0034] Hereinafter, the camera device ID including the optical module driving device 101 according to an embodiment of the present invention will be described with reference to the accompanying drawings. Figure 1A This is an exploded perspective view of the camera device ID after the camera module CM has been removed from the optical module driver 101. Figure 1B This is a perspective view of the camera device ID assembled with the camera module CM installed in the optical module driver 101. Figure 2 This is an exploded perspective view of the optical module driving device 101. Figure 3 This is an exploded perspective view of the swing mechanism SM that constitutes the optical module drive device 101.

[0035] exist Figure 1A In this system, X1 represents one direction of the X-axis constituting a three-dimensional orthogonal coordinate system, and X2 represents the other direction of the X-axis. Similarly, Y1 represents one direction of the Y-axis constituting a three-dimensional orthogonal coordinate system, and Y2 represents the other direction of the Y-axis. Likewise, Z1 represents one direction of the Z-axis constituting a three-dimensional orthogonal coordinate system, and Z2 represents the other direction of the Z-axis. Figure 1A In this diagram, the X1 side of the camera device ID corresponds to the front side (front view) of the camera device ID, and the X2 side corresponds to the rear side (back view) of the camera device ID. Additionally, the Y1 side of the camera device ID corresponds to the left side of the camera device ID, and the Y2 side corresponds to the right side of the camera device ID. Furthermore, the Z1 side of the camera device ID corresponds to the upper side (subject side) of the camera device ID, and the Z2 side corresponds to the lower side (image sensor side) of the camera device ID. The same applies to other diagrams, as well as to other devices, components, and mechanisms.

[0036] like Figure 1A , Figure 1B ,as well as Figure 2 As shown, the optical module drive device 101 includes a cover member 4 as part of the fixed side member FB. The cover member 4 includes an upper cover member 4U and a lower cover member 4D.

[0037] The cover member 4 functions as a housing HS that covers other components constituting the camera device ID. In this embodiment, the upper cover member 4U and the lower cover member 4D are formed of a magnetic material such as a magnetic metal. Additionally, as... Figure 1A As shown, the cover component 4 has a box-shaped shape that defines the receiving portion 4S. (As shown...) Figure 1B As shown, the camera module CM is housed within the housing section 4S. The camera module CM is an example of an optical module.

[0038] like Figure 1A As shown, the camera module CM comprises a substrate CB, a sensor holder SH, a lens drive unit LD, a lens body LS held by the lens drive unit LD, and an imaging element IS mounted on the substrate CB opposite to the lens body LS. The lens body LS is, for example, a cylindrical lens barrel having at least one lens, configured such that its central axis is along the optical axis OA. A partition is provided in the sensor holder SH, forming an opening for exposing the imaging element IS. Furthermore, the imaging element IS is housed on the lower side (Z2 side) of the partition, and an IR cutoff filter (not shown) is disposed on the upper side (Z1 side) of the partition. In this embodiment, the camera module CM is a voice coil motor-type camera module with autofocus functionality, incorporating a magnet and a coil. The camera module CM may also have a drive mechanism other than a voice coil motor, such as a piezoelectric or shape memory actuator. The substrate CB is connected to the outside via a flexible cable 3.

[0039] like Figure 2 As shown, the upper cover member 4U has a generally rectangular cylindrical outer peripheral wall portion 4A and a flat upper plate portion 4B continuously disposed at the upper end (Z1 side end) of the outer peripheral wall portion 4A. The outer peripheral wall portion 4A includes a first side plate portion 4A1 to a fourth side plate portion 4A4. The first side plate portion 4A1 and the third side plate portion 4A3 are opposite to each other, and the second side plate portion 4A2 and the fourth side plate portion 4A4 are opposite to each other. Moreover, the first side plate portion 4A1 and the third side plate portion 4A3 extend perpendicularly to the second side plate portion 4A2 and the fourth side plate portion 4A4. Figure 2 As shown, the upper plate 4B has an opening 4K in the center.

[0040] like Figure 2As shown, the lower side cover member 4D includes a frame-shaped (C-shaped) bottom 4C with a cutout in the front portion, a left wall portion 4WL continuously disposed from the left end of the bottom 4C, and a right wall portion 4WR continuously disposed from the right end of the bottom 4C. The left wall portion 4WL is configured such that its inner surface (the surface on the Y2 side) faces the outer surface (the surface on the Y1 side) of the second side plate portion 4A2 of the upper side cover member 4U. The right wall portion 4WR is configured such that its inner surface (the surface on the Y1 side) faces the outer surface (the surface on the Y2 side) of the fourth side plate portion 4A4 of the upper side cover member 4U.

[0041] The upper side cover component 4U and the lower side cover component 4D are bonded to the base component 8 by adhesive (see reference). Figure 3 The adhesive is, for example, a light-curing adhesive. Light-curing adhesives include, for example, UV-curing adhesives or visible-light curing adhesives. The adhesive can be either a moisture-curing adhesive or a thermosetting adhesive. The same applies to adhesives described later. Furthermore, as... Figure 2 As shown, a leaf spring 6, a swing mechanism SM, and an insulating substrate 10 are housed inside the cover component 4, which serves as the housing HS.

[0042] The swing mechanism SM is configured to allow the camera module CM to swing around a swing axis. Additionally, as... Figure 2 As shown, the oscillation axis includes a first oscillation axis AX1 and a second oscillation axis AX2 that are orthogonal to each other when viewed from above along the optical axis direction. Hereinafter, for ease of explanation, the first oscillation axis AX1 and the second oscillation axis AX2 will sometimes be referred to as the oscillation axis AX. The optical axis direction includes the direction of the optical axis OA associated with the lens body LS and the direction parallel to the optical axis OA.

[0043] Specifically, such as Figure 3 As shown, the swing mechanism SM consists of a movable side component MB, a metal component, a base component 8, and shape memory alloy wires.

[0044] The metal components include a first front metal component 5AF, a first rear metal component 5AB, a second front metal component 5BF, a second rear metal component 5BB, a third front metal component 5CF, a third rear metal component 5CB, a fourth left metal component 5DL, a fourth right metal component 5DR, a fifth left metal component 5EL, a fifth right metal component 5ER, a sixth left metal component 5FL, and a sixth right metal component 5FR.

[0045] For ease of explanation, the first front metal component 5AF and the first rear metal component 5AB are sometimes referred to as the first metal component 5A. For ease of explanation, the second front metal component 5BF and the second rear metal component 5BB are sometimes referred to as the second metal component 5B. For ease of explanation, the third front metal component 5CF and the third rear metal component 5CB are sometimes referred to as the third metal component 5C. For ease of explanation, the fourth left metal component 5DL and the fourth right metal component 5DR are sometimes referred to as the fourth metal component 5D. For ease of explanation, the fifth left metal component 5EL and the fifth right metal component 5ER are sometimes referred to as the fifth metal component 5E. For ease of explanation, the sixth left metal component 5FL and the sixth right metal component 5FR are sometimes referred to as the sixth metal component 5F. Furthermore, for ease of explanation, the first metal components 5A to the sixth metal components 5F are sometimes referred to as metal components 5.

[0046] The shape memory alloy wire is configured to extend along the inner surface of the outer peripheral wall 4A of the upper cover member 4U, and is capable of swinging the movable side member MB relative to the fixed side member FB. In this embodiment, the shape memory alloy wire includes a first inner wire 9A1 to a fourth inner wire 9A4 and a first outer wire 9B1 to a fourth outer wire 9B4, and is configured to allow the first swing member 2 and the second swing member 7, which are the movable side member MB, to swing relative to the base member 8, which is the fixed side member FB. For ease of explanation, the first inner wire 9A1 to the fourth inner wire 9A4 are sometimes referred to as the first shape memory alloy wire 9A. For ease of explanation, the first outer wire 9B1 to the fourth outer wire 9B4 are sometimes referred to as the second shape memory alloy wire 9B. Moreover, for ease of explanation, the first shape memory alloy wire 9A and the second shape memory alloy wire 9B are sometimes referred to as shape memory alloy wire 9.

[0047] The movable side member MB includes a first swing member 2 and a second swing member 7. The first swing member 2 is configured to hold the camera module CM that constitutes the optical module. In this embodiment, the first swing member 2 is configured to swing relative to the second swing member 7 about a first swing axis AX1, and the second swing member 7 is configured to swing relative to the base member 8 about a second swing axis AX2, so as to realize the action of tilting the optical axis OA associated with the lens body LS.

[0048] The movable side member MB moves by tilting the optical axis OA via the drive unit DM. The drive unit DM is configured to tilt the first swing member 2 relative to the fixed side member FB, thereby tilting the optical axis OA of the lens body. In this embodiment, the drive unit DM includes a first drive unit DM1 that tilts the first swing member 2 relative to the second swing member 7, and a second drive unit DM2 that tilts the second swing member 7 relative to the base member 8. The drive unit DM is composed of shape memory alloy wires 9. Specifically, the shape memory alloy wires 9 include a first shape memory alloy wire 9A disposed between the first swing member 2 and the second swing member 7, and a second shape memory alloy wire 9B disposed between the second swing member 7 and the fixed side member FB (base member 8). The first drive unit DM1 is composed of the first shape memory alloy wire 9A, and the second drive unit DM2 is composed of the second shape memory alloy wire 9B. The first swing member 2 moves by oscillating relative to the second swing member 7 about a first swing axis AX1 via the first shape memory alloy wire 9A. The second swing component 7 moves by means of the second shape memory alloy wire 9B, so as to be able to swing relative to the base component 8 about the second swing axis AX2.

[0049] The first swing member 2 has an upper retainer 2U and a lower retainer 2D. In this embodiment, the upper retainer 2U is formed of a magnetic metal to function as a magnetic shield. This is to suppress magnetic interference between the components of the camera module CM and the components of the optical module drive device 101. However, the upper retainer 2U may also be formed of a non-magnetic metal or a synthetic resin.

[0050] Specifically, such as Figure 3 As shown, the upper retainer 2U has a generally rectangular cylindrical outer peripheral wall portion 2A and a flat upper plate portion 2B continuously disposed at the upper end (Z1 side end) of the outer peripheral wall portion 2A. The upper plate portion 2B has an opening 2K in the center.

[0051] The lower retainer 2D is formed by injection molding of synthetic resins such as liquid crystal polymers (LCP). Figure 3 In the example shown, the lower retainer 2D includes a generally rectangular cylindrical frame portion 2F extending along the optical axis OA, and a pair of shaft portions (left shaft portion 2XL) protruding outward from the frame portion 2F along the first swing axis AX1. Figure 3 Not visible in the middle, refer to Figure 5B (and the right shaft portion 2XR). Hereinafter, for ease of explanation, the left shaft portion 2XL and the right shaft portion 2XR will sometimes be referred to as a pair of shaft portions 2X.

[0052] In the frame-like portion 2F, which has a roughly rectangular shape when viewed from above, four opposing circular protrusions 2T are formed at the upper ends of two of the four wall portions (rear wall portion 2WB, front wall portion 2WF, left wall portion 2WL, and right wall portion 2WR). Furthermore, a portion of a leaf spring 6 is mounted at the upper end of each of these two wall portions (left wall portion 2WL and right wall portion 2WR).

[0053] A pair of shaft portions 2X are parts constituting the first swing shaft AX1, including a left shaft portion 2XL formed on the outside of the left wall portion 2WL of the frame-shaped portion 2F (in Figure 3 Not visible in the middle, refer to Figure 5B The left shaft portion 2XL and the right shaft portion 2XR are formed on the outer side of the right wall portion 2WR of the frame portion 2F. Specifically, the left shaft portion 2XL and the right shaft portion 2XR each have an upwardly protruding semi-cylindrical shape. Moreover, the pair of shaft portions 2X are configured to receive a pair of receiving portions (left receiving portion 7SL and right receiving portion 7SR) provided on the second swing member 7. Hereinafter, for ease of explanation, the left receiving portion 7SL and the right receiving portion 7SR will sometimes be referred to as a pair of receiving portions 7S.

[0054] The upper retainer 2U and the lower retainer 2D are configured to accommodate at least a portion of the camera module CM. Furthermore, the lower retainer 2D is fixed to the upper retainer 2U with adhesive. At this time, the outer peripheral wall portion 2A of the upper retainer 2U is disposed inside the frame-like portion 2F of the lower retainer 2D.

[0055] The second swinging component 7 is formed by injection molding of a synthetic resin such as liquid crystal polymer (LCP). Figure 3 In the example shown, the second swing member 7 has a generally rectangular frame-shaped portion 7F. At the center of the lower ends of two opposing (left wall 7WL and right wall 7WR) of the four wall portions (rear wall 7WB, front wall 7WF, left wall 7WL, and right wall 7WR) constituting this frame-shaped portion 7F, a pair of receiving portions 7S are formed. Furthermore, on the outer sides of the other two opposing (rear wall 7WB and front wall 7WF) of the four wall portions constituting the frame-shaped portion 7F, a pair of shaft portions (front shaft portion 7XF and rear shaft portion 7XB) are formed. Hereinafter, for ease of explanation, the front shaft portion 7XF and the rear shaft portion 7XB will sometimes be referred to as a pair of shaft portions 7X.

[0056] In this embodiment, a pair of receiving portions 7S have an upwardly recessed, generally V-shaped groove that receives a pair of shaft portions 2X having an upwardly protruding semi-cylindrical shape. Specifically, the pair of receiving portions 7S includes a left receiving portion 7SL formed at the center of the lower end of the left wall portion 7WL of the frame-like portion 7F, and a right receiving portion 7SR formed at the center of the lower end of the right wall portion 7WR of the frame-like portion 7F.

[0057] A pair of shaft portions 7X constitute the second swing shaft AX2, including a front shaft portion 7XF formed on the outer side of the front wall portion 7WF of the frame-shaped portion 7F, and a rear shaft portion 7XB formed on the outer side of the rear wall portion 7WB of the frame-shaped portion 7F. Specifically, the front shaft portion 7XF and the rear shaft portion 7XB each have a downwardly protruding semi-cylindrical shape. Moreover, the pair of shaft portions 7X are configured to be received by a pair of receiving portions (front receiving portion 8SF and rear receiving portion 8SB) provided on the base member 8. Hereinafter, for ease of explanation, the front receiving portion 8SF and the rear receiving portion 8SB will sometimes be referred to as a pair of receiving portions 8S.

[0058] The base component 8 is formed by injection molding of a synthetic resin such as liquid crystal polymer (LCP). Figure 3 In the example shown, the base component 8 has a generally rectangular frame-shaped portion 8F. A pair of receiving portions 8S are formed at the center of the upper ends of two opposing (rear wall portion 8WB and front wall portion 8WF) of the four wall portions (rear wall portion 8WB, front wall portion 8WF, left wall portion 8WL, and right wall portion 8WR) constituting the frame-shaped portion 8F. In this embodiment, the pair of receiving portions 8S have a generally V-shaped groove that is recessed downwards, such that they receive a pair of shaft portions 7X with a downwardly protruding semi-cylindrical shape. Specifically, the pair of receiving portions 8S includes a front receiving portion 8SF formed at the center of the upper end of the front wall portion 8WF of the frame-shaped portion 8F, and a rear receiving portion 8SB formed at the center of the upper end of the rear wall portion 8WB of the frame-shaped portion 8F.

[0059] A base portion is formed at the upper end of both the front wall portion 8WF and the rear wall portion 8WB of the frame-shaped portion 8F. Figure 3 In the example shown, the base portion includes a first base portion 8D1 to a fourth base portion 8D4. The first base portion 8D1 and the second base portion 8D2 are formed on the upper end of the front wall portion 8WF in a manner that clamps the front receiving portion 8SF. The third base portion 8D3 and the fourth base portion 8D4 are formed on the upper end of the rear wall portion 8WB in a manner that clamps the rear receiving portion 8SB. Hereinafter, for ease of explanation, the first base portion 8D1 to the fourth base portion 8D4 will sometimes be referred to as base portion 8D.

[0060] As an example of a shape memory actuator, a shape memory alloy wire 9 constitutes a drive unit DM. In this embodiment, the shape memory alloy wire 9 includes a first shape memory alloy wire 9A and a second shape memory alloy wire 9B. The first shape memory alloy wire 9A includes a first inner wire 9A1 to a fourth inner wire 9A4. The second shape memory alloy wire 9B includes a first outer wire 9B1 to a fourth outer wire 9B4. When current flows through the shape memory alloy wire 9, the temperature rises, and the shape memory alloy wire 9 contracts accordingly. The drive unit DM can use the contraction of the shape memory alloy wire 9 to make the movable side member MB swing around the swing axis AX. Specifically, the drive unit DM (first drive unit DM1) can use the contraction of the first shape memory alloy wire 9A to make the first swing member 2 swing relative to the second swing member 7 around the first swing axis AX1. In addition, the drive unit DM (second drive unit DM2) can use the contraction of the second shape memory alloy wire 9B to make the second swing member 7 swing relative to the base member 8 around the second swing axis AX2.

[0061] exist Figure 3 In the example shown, the shape memory alloy wire 9 is configured such that if one or more of the first inner wire 9A1 to the fourth inner wire 9A4 and the first outer wire 9B1 to the fourth outer wire 9B4 contract, the movable side member MB swings, and through this swing, one or more other shape memory alloy wires are stretched. Specifically, the drive unit DM can cause the first swing member 2 to swing clockwise relative to the second swing member 7 towards the first swing axis AX1 when viewed from the right by simultaneously contracting the first inner wire 9A1 and the second inner wire 9A2. Furthermore, the drive unit DM can cause the first swing member 2 to swing counterclockwise relative to the second swing member 7 towards the first swing axis AX1 when viewed from the right by simultaneously contracting the third inner wire 9A3 and the fourth inner wire 9A4. Additionally, the drive unit DM can cause the first swing member 2 and the second swing member 7 to swing counterclockwise relative to the base member 8 towards the second swing axis AX2 when viewed from the front by simultaneously contracting the first outer wire 9B1 and the second outer wire 9B2. In addition, by simultaneously contracting the third outer line 9B3 and the fourth outer line 9B4, the drive unit DM enables the first swing member 2 and the second swing member 7 to swing clockwise relative to the base member 8 toward the second swing axis AX2 in the main view.

[0062] Thus, the drive unit DM has a plurality of first shape memory alloy wires 9A disposed between the first swing member 2 and the second swing member 7, and a plurality of second shape memory alloy wires 9B disposed between the second swing member 7 and the fixed side member FB (base member 8).

[0063] Furthermore, the first shape memory alloy wire 9A is disposed at two separate positions in the axial direction of the second swing axis AX2, separated from the first swing component 2, and the second shape memory alloy wire 9B is disposed at two separate positions in the axial direction of the first swing axis AX1, separated from the first swing component 2.

[0064] Two first shape memory alloy wires 9A are respectively arranged at two separate positions along the axial direction of the second swing axis AX2. When viewed along the axial direction of the second swing axis AX2, the two first shape memory alloy wires 9A intersect each other and form a first wire pair.

[0065] exist Figure 3 In the example shown, a first inner line 9A1 and a second inner line 9A2 are positioned at the front side of the first swing member 2. The first inner line 9A1 and the second inner line 9A2 intersect each other when viewed from the front and form a first front line pair. In addition, a third inner line 9A3 and a fourth inner line 9A4 are positioned at the rear side of the first swing member 2. The third inner line 9A3 and the fourth inner line 9A4 intersect each other when viewed from the rear and form a first rear line pair.

[0066] Two second shape memory alloy wires 9B are respectively arranged at two separate positions along the axial direction of the first swing axis AX1. When viewed along the axial direction of the first swing axis AX1, the two second shape memory alloy wires 9B intersect each other and form a second wire pair.

[0067] exist Figure 3 In the example shown, a first outer line 9B1 and a second outer line 9B2 are positioned on the left side of the first swing member 2. The first outer line 9B1 and the second outer line 9B2 intersect each other when viewed from the left and form a second left-side line pair. In addition, a third outer line 9B3 and a fourth outer line 9B4 are positioned on the right side of the first swing member 2. The third outer line 9B3 and the fourth outer line 9B4 intersect each other when viewed from the right and form a second right-side line pair.

[0068] In this embodiment, the shape memory alloy wire 9 is fixed to the movable side member MB and the fixed side member FB via metal parts 5. The metal parts 5 are configured to fix the ends of the shape memory alloy wire 9.

[0069] exist Figure 3In the example shown, one end (lower end) of each of the first inner wire 9A1 and the second inner wire 9A2 is connected to the first front metal component 5AF. That is, the first inner wire 9A1 and the second inner wire 9A2 are connected in series via the first front metal component 5AF. Similarly, one end (lower end) of each of the third inner wire 9A3 and the fourth inner wire 9A4 is connected to the first rear metal component 5AB. That is, the third inner wire 9A3 and the fourth inner wire 9A4 are connected in series via the first rear metal component 5AB.

[0070] The second front metal component 5BF is connected to the other end (upper end) of the first inner line 9A1, and the second rear metal component 5BB is connected to the other end (upper end) of the third inner line 9A3. The third front metal component 5CF is connected to the other end (upper end) of the second inner line 9A2, and the third rear metal component 5CB is connected to the other end (upper end) of the fourth inner line 9A4.

[0071] The fourth left-side metal component 5DL connects one end (upper end) of each of the first outer wire 9B1 and the second outer wire 9B2. That is, the first outer wire 9B1 and the second outer wire 9B2 are connected in series via the fourth left-side metal component 5DL. Similarly, the fourth right-side metal component 5DR connects one end (upper end) of each of the third outer wire 9B3 and the fourth outer wire 9B4. That is, the third outer wire 9B3 and the fourth outer wire 9B4 are connected in series via the fourth right-side metal component 5DR.

[0072] The fifth left metal component 5EL is connected to the other end (lower end) of the first outer line 9B1, and the fifth right metal component 5ER is connected to the other end (lower end) of the third outer line 9B3. The sixth left metal component 5FL is connected to the other end (lower end) of the second outer line 9B2, and the sixth right metal component 5FR is connected to the other end (lower end) of the fourth outer line 9B4.

[0073] The insulating substrate 10 is a component used to connect the drive unit DM and the control device (not shown). The control device is configured to supply current to the drive unit DM, and is typically located outside the housing HS. In this embodiment, the insulating substrate 10 is a flexible printed circuit board, such as... Figure 2 As shown, it includes a rear portion 10B, a left portion 10L, and a right portion 10R. The rear portion 10B includes a tongue 10T that bends at the front end of the central portion of the rear portion 10B and extends upward.

[0074] A magnetic sensor is mounted on the insulating substrate 10. The magnetic sensor is configured to detect the position of the movable side member MB by detecting the position of a magnet, which is a magnetic component, mounted on the movable side member MB. In this embodiment, the magnetic sensor includes a rear magnetic sensor 11B, a left magnetic sensor 11L, and a right magnetic sensor 11R. For ease of explanation, the rear magnetic sensor 11B, the left magnetic sensor 11L, and the right magnetic sensor 11R are sometimes referred to as magnetic sensor 11.

[0075] like Figure 2 As shown, the rear magnetic sensor 11B is mounted on the tongue 10T of the insulating substrate 10, the left magnetic sensor 11L is mounted on the left side 10L of the insulating substrate 10, and the right magnetic sensor 11R is mounted on the right side 10R of the insulating substrate 10.

[0076] In this embodiment, the magnetic sensor 11 is configured to detect the position of the movable side member MB using an analog output type Hall element. However, the magnetic sensor 11 may also be configured to detect the position of the movable side member MB using a magnetoresistive element such as a giant magnetoresistive effect (GMR) element, a semiconductor magnetoresistive (SMR) element, an anisotropic magnetoresistive (AMR) element, or a tunnel magnetoresistive (TMR) element that can detect the magnetic field generated by the magnet, which is a magnetic component.

[0077] Here, refer to Figure 4A as well as Figure 4B The metal component 5 on which the shape memory alloy wire 9 is installed will be described. Figure 4A This is the front view of the shape memory alloy wire 9 installed on the metal component 5. Specifically, Figure 4A The image shows the state of the first inner line 9A1 of the first front metal component 5AF and the second front metal component 5BF, and the second inner line 9A2 of the first front metal component 5AF and the third front metal component 5CF, as viewed from the X1 side (front side). Figure 4B This is a left view of the shape memory alloy wire 9 installed on the metal component 5. Specifically, Figure 4B The diagram shows the state viewed from the Y1 side (left side) as the first inner line 9A1 mounted on the first front metal component 5AF and the second front metal component 5BF, and the second inner line 9A2 mounted on the first front metal component 5AF and the third front metal component 5CF. Additionally, Figure 4A as well as Figure 4BThe positional relationships of the components shown correspond to the positional relationships of the components when the optical module drive device 101 is assembled. Furthermore, in Figure 4A as well as Figure 4B For clarity, illustrations of other components have been omitted. Additionally, refer to... Figure 4A as well as Figure 4B Although the following explanation pertains to the combination of the first inner line 9A1 and the second inner line 9A2, namely the first front line pair, it also applies to the combination of the third inner line 9A3 and the fourth inner line 9A4, namely the first rear line pair; the combination of the first outer line 9B1 and the second outer line 9B2, namely the second left line pair; and the combination of the third outer line 9B3 and the fourth outer line 9B4, namely the second right line pair.

[0078] Specifically, one end (lower end) of the first inner wire 9A1 is fixed to the first front metal component 5AF by a retaining part J1 located at the left end of the first front metal component 5AF, and the other end (upper end) of the first inner wire 9A1 is fixed to the second front metal component 5BF by a retaining part J2 located at the right end of the second front metal component 5BF. More specifically, the first inner wire 9A1 is fixed to the first front metal component 5AF by crimping or welding. Similarly, one end (lower end) of the second inner wire 9A2 is fixed to the first front metal component 5AF by a retaining part J3 located at the right end of the first front metal component 5AF, and the other end (upper end) of the second inner wire 9A2 is fixed to the third front metal component 5CF by a retaining part J4 located at the left end of the third front metal component 5CF.

[0079] The retaining part J1 is formed by bending a portion of the first front metal member 5AF. Specifically, the retaining part J1 is formed by bending a portion of the first front metal member 5AF while clamping one end (lower end) of the first inner line 9A1. Furthermore, one end (lower end) of the first inner line 9A1 is fixed to the retaining part J1 by welding. The same applies to the retaining parts J2 to J4.

[0080] like Figure 4A as well as Figure 4B As shown, the first inner line 9A1 and the second inner line 9A2 are arranged in a position that is twisted to each other. That is, the first inner line 9A1 and the second inner line 9A2 are arranged without contacting each other (non-contact).

[0081] Next, refer to Figure 5A as well as Figure 5B An example of the configuration of the first swinging component 2 will be described. Figure 5A This is a top-view perspective view of the first swinging component 2. Specifically, Figure 5A This is a three-dimensional view of the disassembled first swinging component 2 viewed from above. Figure 5B This is a perspective view of the first swinging component 2 from below. Specifically, Figure 5B This is a perspective view from below of the lower retainer 2D constituting the first swing member 2, and the illustration of the upper retainer 2U constituting the first swing member 2 is omitted. Furthermore, for clarity, in Figure 5A as well as Figure 5B In this process, a cross pattern is added to the first front metal component 5AF and the first rear metal component 5AB.

[0082] The first front metal component 5AF is mounted on the front wall portion 2WF of the frame-shaped portion 2F in the lower retainer 2D, and the first rear metal component 5AB is mounted on the rear wall portion 2WB of the frame-shaped portion 2F in the lower retainer 2D.

[0083] Specifically, the first front metal component 5AF is fixed to the frame-shaped portion 2F by an adhesive applied to the rectangular hole AH1. The same applies to the first rear metal component 5AB.

[0084] A stepped difference 2S is formed on the inner peripheral surface of the frame-shaped portion 2F of the lower retainer 2D. The lower end of the outer peripheral wall portion 2A of the upper retainer 2U is positioned by the stepped difference 2S when the upper retainer 2U is inserted into the lower retainer 2D. Furthermore, the upper retainer 2U and the lower retainer 2D are joined by an adhesive.

[0085] Camera module CM (reference) Figure 1A With the upper surface of the camera module CM (lens drive device LD cover) in contact with the top surface of the upper plate portion 2B of the upper retainer 2U, it is bonded to the upper retainer 2U by adhesive.

[0086] With this configuration, the camera module CM is held by the upper retainer 2U in a state where its position in the optical axis direction is determined. Furthermore, in this embodiment, the engagement of the upper retainer 2U and the lower retainer 2D is performed before the engagement of the camera module CM with the upper retainer 2U. Additionally, the upper retainer 2U can also serve as a cover for the camera module CM (a cover for the lens drive device LD).

[0087] Next, refer to Figure 6A as well as Figure 6B An example of the configuration of the second swinging component 7 will be described. Figure 6A This is a top-view perspective view of the second swinging component 7. Specifically, Figure 6A (a) is a top-view perspective view of the second swinging component 7, which has an inner conductive component embedded therein. Figure 6A (b) is a top-view perspective view of the conductive component embedded inside the second swing component 7. Figure 6A(c) is a top-view perspective view of the second swinging component 7, on which the metal component 5 is mounted. Figure 6B This is a perspective view of the second swinging component 7 from below. Additionally, for clarity, in... Figure 6A as well as Figure 6B In the middle, a cross pattern was added to metal part 5.

[0088] The inner conductive components include first inner conductive components 15A to fourth inner conductive components 15D. Hereinafter, for ease of explanation, the first inner conductive components 15A to fourth inner conductive components 15D will sometimes be referred to as inner conductive components 15. Furthermore, for clarity, in... Figure 6A as well as Figure 6B In the middle, a fine dot pattern is added to the inner conductive component 15.

[0089] In this embodiment, the inner conductive component 15 is formed of a metal plate containing materials such as copper, iron, or an alloy with copper or iron as the main components, and is embedded into the second swing component 7 by insert molding.

[0090] The first inner conductive member 15A has an upper surface connecting portion 15pA exposed on the upper surface (Z1 side surface) of the front wall portion 7WF of the second swing member 7, and a side connecting portion 15sA exposed on the front side (X1 side surface) of the front wall portion 7WF of the second swing member 7.

[0091] The second inner conductive member 15B has an upper surface connecting portion 15pB exposed on the upper surface of the front wall portion 7WF of the second swing member 7, and a side connecting portion 15sB exposed on the front of the front wall portion 7WF of the second swing member 7.

[0092] The third inner conductive member 15C has an upper surface connecting portion 15pC exposed on the upper surface of the rear wall portion 7WB of the second swing member 7, and a side connecting portion 15sC exposed on the rear side (X2 side) of the rear wall portion 7WB of the second swing member 7.

[0093] The fourth inner conductive member 15D has an upper surface connecting portion 15pD exposed on the upper surface of the rear wall portion 7WB of the second swing member 7, and a side connecting portion 15sD exposed at the rear of the rear wall portion 7WB of the second swing member 7.

[0094] The second front metal component 5BF is welded to the side connection portion 15sA of the first inner conductive component 15A, which is exposed on the front wall portion 7WF of the second swing component 7. The second front metal component 5BF can also be bonded to the side connection portion 15sA by a conductive adhesive.

[0095] The third front metal component 5CF is welded to the side connection portion 15sB of the second inner conductive component 15B, which is exposed on the front wall portion 7WF of the second swing component 7. The third front metal component 5CF can also be bonded to the side connection portion 15sB by a conductive adhesive.

[0096] The second rear metal component 5BB is welded to the side connection portion 15sD of the fourth inner conductive component 15D, which is exposed behind the rear wall portion 7WB of the second swing component 7. The second rear metal component 5BB can also be bonded to the side connection portion 15sD by a conductive adhesive.

[0097] The third rear metal component 5CB is welded to the side connection portion 15sC of the third inner conductive component 15C, which is exposed behind the rear wall portion 7WB of the second swing component 7. The third rear metal component 5CB can also be bonded to the side connection portion 15sC by a conductive adhesive.

[0098] Specifically, the second front metal component 5BF passes through the circular hole RH1 (refer to...) Figure 6A (c) is fixed to the second swinging component 7 by the adhesive applied, and by the circular hole RH2 (refer to) Figure 6A The metal is joined to the side connection 15sA by laser welding or other welding performed inside (c). The same applies to the second rear metal part 5BB, the third front metal part 5CF, and the third rear metal part 5CB.

[0099] like Figure 6A As shown, the fourth right-side metal component 5DR is bonded to the right side of the right wall portion 7WR of the second swing component 7, as... Figure 6B As shown, the fourth left-side metal component 5DL is bonded to the left side of the left wall portion 7WL of the second swing component 7.

[0100] Specifically, the fourth right-side metal component 5DR passes through the rectangular hole AH2 (refer to...). Figure 6A (c) is coated with adhesive and fixed to the second swinging part 7. The same applies to the fourth left-side metal part 5DL.

[0101] Next, refer to Figure 7 An example of the configuration of base component 8 will be described. Figure 7 This is a top-view perspective view of the base component 8. Specifically, Figure 7 (a) is a top-view perspective view of the base component 8, on which the outer conductive component is embedded. Figure 7 (b) is a top-view perspective view of the conductive component embedded on the outer side of the base component 8. Figure 7 (c) is a top-view perspective view of the base component 8 on which the metal component 5 is mounted.

[0102] The outer conductive components include the first outer conductive component 16A to the eighth outer conductive component 16H. Hereinafter, for ease of explanation, the first outer conductive component 16A to the eighth outer conductive component 16H will sometimes be referred to as the outer conductive component 16.

[0103] In this embodiment, the outer conductive component 16 is formed of a metal plate containing materials such as copper, iron, or alloys with copper or iron as the main components, and is embedded into the base component 8 by insert molding.

[0104] The first outer conductive member 16A has an upper surface connection portion 16pA exposed on the upper surface (Z1 side) of the front wall portion 8WF of the base member 8, and a terminal portion 16tA exposed on the lower surface (Z2 side) of the base member 8.

[0105] The second outer conductive member 16B has an upper surface connection portion 16pB exposed on the upper surface of the front wall portion 8WF of the base member 8, and a terminal portion 16tB exposed on the lower surface of the base member 8.

[0106] The third outer conductive member 16C has an upper surface connection portion 16pC exposed on the upper surface of the rear wall portion 8WB of the base member 8, and a terminal portion 16tC exposed on the lower surface of the base member 8.

[0107] The fourth outer conductive member 16D has an upper surface connection portion 16pD exposed on the upper surface of the rear wall portion 8WB of the base member 8, and a terminal portion 16tD exposed on the lower surface of the base member 8.

[0108] The fifth outer conductive member 16E has a side connection portion 16sE exposed on the right side (Y2 side) of the right wall portion 8WR of the base member 8, and a terminal portion 16tE exposed on the lower surface of the base member 8.

[0109] The sixth outer conductive member 16F has a side connection portion 16sF exposed on the left side (Y1 side) of the left wall portion 8WL of the base member 8, and a terminal portion 16tF exposed on the lower surface of the base member 8.

[0110] The seventh outer conductive member 16G has a side connection portion 16sG exposed on the left side of the left wall portion 8WL of the base member 8, and a terminal portion 16tG exposed on the lower surface of the base member 8.

[0111] The eighth outer conductive member 16H has a side connection portion 16sH exposed on the right side of the right wall portion 8WR of the base member 8, and a terminal portion 16tH exposed on the lower surface of the base member 8.

[0112] The fifth right-side metal component 5ER is welded to the side connection portion 16sH of the eighth outer conductive component 16H, which is exposed on the right side of the right wall portion 8WR of the base component 8. The fifth right-side metal component 5ER can also be bonded to the side connection portion 16sH by means of a conductive adhesive.

[0113] The fifth left-side metal component 5EL is welded to the side connection portion 16sG of the seventh outer conductive component 16G, which is exposed on the left side of the left wall portion 8WL of the base component 8. The fifth left-side metal component 5EL can also be bonded to the side connection portion 16sG by a conductive adhesive.

[0114] The sixth right-side metal component 5FR is welded to the side connection portion 16sE of the fifth outer conductive component 16E, which is exposed on the right side of the right wall portion 8WR of the base component 8. The sixth right-side metal component 5FR can also be bonded to the side connection portion 16sE by a conductive adhesive.

[0115] The sixth left-side metal component 5FL is welded to the side connection portion 16sF of the sixth outer conductive component 16F, which is exposed on the left side of the left wall portion 8WL of the base component 8. The sixth left-side metal component 5FL can also be bonded to the side connection portion 16sF by a conductive adhesive.

[0116] Next, refer to Figures 8A to 8C The connection relationships between the leaf spring 6 and the first swinging component 2 (lower retainer 2D), the second swinging component 7, and the base component 8 are explained. Figure 8A This is a top-view perspective view of the lower retainer 2D, leaf spring 6, second swing component 7, and base component 8 in their disassembled state. Figure 8B This is a top-view perspective view of the lower retainer 2D, leaf spring 6, second swing component 7, and base component 8 in their combined state. Figure 8C This is a left view of the lower retainer 2D, leaf spring 6, second swing member 7, and base member 8 in their assembled state. Additionally, in... Figures 8A to 8C For clarity, the upper retainer 2U constituting the first swing member 2 is omitted from the illustration. Additionally, in Figures 8A to 8C For clarity, a fine dot pattern is added to the lower retainer 2D, a coarser dot pattern is added to the second swing component 7, and a coarser dot pattern is added to the base component 8. For Figure 10 as well as Figure 11 The same.

[0117] The leaf spring 6 is configured to connect the first swinging member 2 (lower retainer 2D), the second swinging member 7, and the base member 8. In this embodiment, the leaf spring 6 is made of a metal plate, for example, using a copper alloy, a titanium-copper alloy (titanium copper), or a copper-nickel alloy (nickel-tin copper), and is configured to function as a conductive path. Specifically, the leaf spring 6 includes a first leaf spring 6A to a fourth leaf spring 6D.

[0118] The first leaf spring 6A is configured to connect the first swing member 2 (lower retainer 2D), the second swing member 7, and the base member 8. In this embodiment, the first leaf spring 6A has an inner portion 6iA fixed to the lower retainer 2D, a central portion 6mA fixed to the second swing member 7, an outer portion 6eA fixed to the base member 8, an inner elastic arm 6gA connecting the inner portion 6iA and the central portion 6mA, and an outer elastic arm 6fA connecting the outer portion 6eA and the central portion 6mA. Similarly, the second leaf spring 6B has an inner portion 6iB, a central portion 6mB, an outer portion 6eB, an inner elastic arm 6gB, and an outer elastic arm 6fB; the third leaf spring 6C has an inner portion 6iC, a central portion 6mC, an outer portion 6eC, an inner elastic arm 6gC, and an outer elastic arm 6fC; and the fourth leaf spring 6D has an inner portion 6iD, a central portion 6mD, an outer portion 6eD, an inner elastic arm 6gD, and an outer elastic arm 6fD. For ease of explanation, the inner portion 6iA to the inner portion 6iD will sometimes be referred to as the inner portion 6i, the central portion 6mA to the central portion 6mD will sometimes be referred to as the central portion 6m, the outer portion 6eA to the outer portion 6eD will sometimes be referred to as the outer portion 6e, the inner elastic arm portion 6gA to the inner elastic arm portion 6gD will sometimes be referred to as the inner elastic arm portion 6g, and the outer elastic arm portion 6fA to the outer elastic arm portion 6fD will sometimes be referred to as the outer elastic arm portion 6f.

[0119] like Figure 8A As shown by the dashed lines, the inner portion 6iA of the first leaf spring 6A is fixed to the upper end of the right wall portion 2WR of the frame-shaped portion 2F of the lower retainer 2D. Two first through holes 6H1 are formed in the inner portion 6iA, into which two protrusions 2T are inserted. These protrusions 2T are formed at the upper end of the right wall portion 2WR of the frame-shaped portion 2F and protrude upwards. In this embodiment, the inner portion 6iA and the protrusions 2T are fixed by hot riveting or cold riveting. However, the inner portion 6iA and the protrusions 2T can also be fixed by adhesive. The same applies to the inner portions 6iB of the second leaf spring 6B, 6iC of the third leaf spring 6C, and 6iD of the fourth leaf spring 6D.

[0120] like Figure 8AAs shown by the dashed lines, the central portion 6mA of the first leaf spring 6A is fixed to the upper surface connecting portion 15pA of the first inner conductive member 15A, which is exposed on the upper surface of the front wall portion 7WF of the second swing member 7. Two second through holes 6H2 are formed in the central portion 6mA for engaging with the upper surface connecting portion 15pA. In this embodiment, the engagement between the central portion 6mA and the upper surface connecting portion 15pA is achieved by welding, such as laser welding, performed within the second through holes 6H2. However, the engagement between the central portion 6mA and the upper surface connecting portion 15pA can also be achieved by solder or conductive adhesive. The same applies to the central portions 6mB of the second leaf spring 6B, 6mC of the third leaf spring 6C, and 6mD of the fourth leaf spring 6D.

[0121] like Figure 8A As shown by the dashed lines, the outer portion 6eB of the second leaf spring 6B rests on the upper surface of the second base portion 8D2 formed on the front wall portion 8WF of the base member 8, and is fixed to the upper surface connecting portion 16pB of the second outer conductive member 16B exposed on the upper surface of the second base portion 8D2. Two third through holes 6H3 and a fourth through hole 6H4 are formed in the outer portion 6eB for engaging with the upper surface connecting portion 16pB of the second outer conductive member 16B. The two third through holes 6H3 are inserted into two protrusions 8T formed on the upper surface of the second base portion 8D2 and protruding upwards. In this embodiment, the outer portion 6eB is fixed to the protrusions 8T by hot riveting or cold riveting. However, the outer portion 6eB and the protrusions 8T can also be fixed by adhesive. Furthermore, the engagement of the outer portion 6eB to the upper surface connecting portion 16pB is achieved by welding, such as laser welding, performed within the fourth through hole 6H4. However, the joining of the outer portion 6eB to the upper surface connecting portion 16pB can also be achieved using solder or conductive adhesive. The same applies to the outer portion 6eA of the first leaf spring 6A, the outer portion 6eC of the third leaf spring 6C, and the outer portion 6eD of the fourth leaf spring 6D.

[0122] In addition, such as Figure 8C As shown, the third leaf spring 6C is fixed to the first swing member 2 (lower retainer 2D) and the second swing member 7 such that the height of the central portion 6mC is higher than the height of the inner portion 6iC by a height H1. Due to this configuration, the third leaf spring 6C, having the central portion 6mC and the inner portion 6iC, functions as a first force-applying member, which applies a force such that a pair of shaft portions 2X (left shaft portion 2XL and right shaft portion 2XR) and a pair of receiving portions 7S (left receiving portion 7SL and right receiving portion 7SR) press against each other. Furthermore, as... Figure 8CAs shown, the third leaf spring 6C is fixed to the second swing member 7 and the base member 8 such that the height of the central portion 6mC is higher than the height of the outer portion 6eC by a height H2. Due to this configuration, the third leaf spring 6C, having the central portion 6mC and the outer portion 6eC, functions as a second force-applying member, which applies a force such that a pair of shaft portions 7X (front shaft portion 7XF and rear shaft portion 7XB) and a pair of receiving portions 8S (front receiving portion 8SF and rear receiving portion 8SB) press against each other. The same applies to the first leaf spring 6A, the second leaf spring 6B, and the fourth leaf spring 6D.

[0123] Next, refer to Figures 9A to 9C The positional relationships of the metal component 5, the leaf spring 6, the shape memory alloy wire 9, the inner conductive component 15, and the outer conductive component 16 are explained. Figure 9A This is a top-view perspective view of the assembled metal component 5, leaf spring 6, shape memory alloy wire 9, inner conductive component 15, and outer conductive component 16.

[0124] Figure 9B This is a top-view perspective view of the first front metal component 5AF, the second front metal component 5BF, the third front metal component 5CF, the first leaf spring 6A, the second leaf spring 6B, the first inner wire 9A1, the second inner wire 9A2, the first inner conductive component 15A, the second inner conductive component 15B, the first outer conductive component 16A, and the second outer conductive component 16B, which is equivalent to extracting... Figure 9A A portion of the image.

[0125] Figure 9C This is a top-view perspective view of the fourth right-side metal component 5DR, the fifth right-side metal component 5ER, the sixth right-side metal component 5FR, the third outer line 9B3, the fourth outer line 9B4, the fifth outer conductive component 16E, and the eighth outer conductive component 16H, which is equivalent to extracting... Figure 9A A portion of the image.

[0126] In addition, Figures 9A to 9C For clarity, a cross pattern is added to the metal part 5, a fine dot pattern is added to the leaf spring 6, a coarse dot pattern is added to the inner conductive part 15, and a coarser dot pattern is added to the outer conductive part 16.

[0127] like Figure 9A As shown, the first leaf springs 6A to the fourth leaf springs 6D each have the same shape and are arranged in a doubly rotationally symmetrical manner with respect to the optical axis OA. Therefore, this configuration can reduce the number of components in the optical module drive device 101. In addition, the leaf springs 6, which are composed of the first leaf springs 6A to the fourth leaf springs 6D, can provide good balanced support for the first swing member 2 and the second swing member 7 relative to the base member 8.

[0128] The outer portion 6eA of the first leaf spring 6A is welded to the upper surface connection portion 16pA of the first outer conductive component 16A (see reference). Figure 7 (b)

[0129] The outer portion 6eB of the second leaf spring 6B is welded to the upper surface connection portion 16pB of the second outer conductive component 16B (see reference). Figure 7 (b)

[0130] The outer portion 6eC of the third leaf spring 6C is welded to the upper surface connection portion 16pC of the third outer conductive component 16C (see reference). Figure 7 (b)

[0131] The outer portion 6eD of the fourth leaf spring 6D is joined to the upper surface connection portion 16pD of the fourth outer conductive component 16D by welding (see reference). Figure 7 (b)

[0132] The central portion 6mA of the first leaf spring 6A is welded to the upper surface connection portion 15pA of the first inner conductive component 15A (see reference). Figure 6A (b)

[0133] The central portion 6mB of the second leaf spring 6B is welded to the upper surface connection portion 15pB of the second inner conductive component 15B (see reference). Figure 6A (b)

[0134] The central portion 6mC of the third leaf spring 6C is welded to the upper surface connection portion 15pC of the third inner conductive component 15C (see reference). Figure 6A (b)

[0135] The central portion 6mD of the fourth leaf spring 6D is welded to the upper surface connection portion 15pD of the fourth inner conductive component 15D (see reference). Figure 6A (b)

[0136] The side connection portion 15sA of the first inner conductive component 15A (refer to) Figure 6A (b) is joined to the second front metal component 5BF by welding.

[0137] The side connection portion 15sB of the second inner conductive component 15B (refer to) Figure 6A (b) is joined to the third front metal component 5CF by welding.

[0138] The side connection portion 15sC of the third inner conductive component 15C (refer to) Figure 6A (b) is joined to the third rear metal component 5CB by welding.

[0139] The side connection portion 15sD of the fourth inner conductive component 15D (refer to) Figure 6A (b) is joined to the second rear metal component 5BB by welding.

[0140] The side connection portion 16sE of the fifth outer conductive component 16E (refer to) Figure 7 (b) is joined to the sixth right-side metal component 5FR by welding.

[0141] The side connection portion 16sF of the sixth outer conductive component 16F (refer to) Figure 7 (b) is joined to the sixth left-side metal part 5FL by welding.

[0142] The side connection portion 16sG of the seventh outer conductive component 16G (refer to) Figure 7 (b) is joined to the fifth left metal part 5EL by welding.

[0143] The side connection portion 16sH of the eighth outer conductive component 16H (refer to) Figure 7 (b) is joined to the fifth right-side metal component 5ER by welding.

[0144] The second front metal component 5BF is connected to the first front metal component 5AF via the first inner line 9A1, and the third front metal component 5CF is connected to the first front metal component 5AF via the second inner line 9A2.

[0145] The second rear metal component 5BB is connected to the first rear metal component 5AB via the third inner line 9A3, and the third rear metal component 5CB is connected to the first rear metal component 5AB via the fourth inner line 9A4.

[0146] The fifth left-side metal component 5EL is connected to the fourth left-side metal component 5DL via the first outer line 9B1, and the sixth left-side metal component 5FL is connected to the fourth left-side metal component 5DL via the second outer line 9B2.

[0147] The fifth right-side metal component 5ER is connected to the fourth right-side metal component 5DR via the third outer line 9B3, and the sixth right-side metal component 5FR is connected to the fourth right-side metal component 5DR via the fourth outer line 9B4.

[0148] Terminal section 16tA to terminal section 16tH (refer to) Figure 7 (b) is attached to a conductive pattern (not shown) formed on the upper surface of the insulating substrate 10 by solder or conductive adhesive.

[0149] Next, refer to Figure 9B The path of the current flowing in the first shape memory alloy wire 9A is explained. Specifically, Figure 9BThe diagram shows the current path when terminal 16tA of the first outer conductive member 16A is connected to a high potential and terminal 16tB of the second outer conductive member 16B is connected to a low potential. The following description pertains to the current path flowing from terminal 16tA through the first inner line 9A1 and the second inner line 9A2 into terminal 16tB. However, the same applies to the current path flowing from terminal 16tB through the second inner line 9A2 and the first inner line 9A1 into terminal 16tA, and also to the current path flowing through the third inner line 9A3 and the fourth inner line 9A4.

[0150] If the terminal portion 16tA of the first outer conductive component 16A is connected to a high potential, and the terminal portion 16tB of the second outer conductive component 16B is connected to a low potential, then the current is as follows: Figure 9B As shown by arrow AR1, the current flows from terminal 16tA into first leaf spring 6A through first outer conductive member 16A. Then, as shown by arrow AR2, the current flows through first leaf spring 6A; as shown by arrow AR3, it flows through first inner conductive member 15A; as shown by arrow AR4, it flows through second front metal member 5BF; as shown by arrow AR5, it flows through first inner wire 9A1; and then through first front metal member 5AF as shown by arrows AR6 and AR7. Next, the current flows through second inner wire 9A2 as shown by arrow AR8; through third front metal member 5CF as shown by arrow AR9; through second inner conductive member 15B as shown by arrow AR10; through second leaf spring 6B as shown by arrow AR11; and through second outer conductive member 16B as shown by arrow AR12, flowing into terminal 16tB.

[0151] If the terminal portion 16tB of the second outer conductive member 16B is connected to a high potential and the terminal portion 16tA of the first outer conductive member 16A is connected to a low potential, the current flows in the opposite direction to the above-described path.

[0152] Next, refer to Figure 9C The path of the current flowing in the second shape memory alloy wire 9B is explained. Specifically, Figure 9C The diagram shows the current path when the terminal portion 16tE of the fifth outer conductive member 16E is connected to a high potential and the terminal portion 16tH of the eighth outer conductive member 16H is connected to a low potential. The following description pertains to the current path flowing from the terminal portion 16tE through the fourth outer line 9B4 and the third outer line 9B3 into the terminal portion 16tH. However, the same applies to the current path flowing from the terminal portion 16tH through the third outer line 9B3 and the fourth outer line 9B4 into the terminal portion 16tE, and also to the current path flowing in the first outer line 9B1 and the second outer line 9B2.

[0153] If the terminal portion 16tE of the fifth outer conductive component 16E is connected to a high potential, and the terminal portion 16tH of the eighth outer conductive component 16H is connected to a low potential, then the current is as follows: Figure 9C As shown by arrow AR21, the current flows from terminal 16tE through the fifth outer conductive member 16E into the sixth right-side metal member 5FR. Then, as shown by arrow AR22, the current flows through the fourth outer line 9B4; as shown by arrow AR23, through the fourth right-side metal member 5DR; as shown by arrow AR24, through the third outer line 9B3; as shown by arrow AR25, through the fifth right-side metal member 5ER; and as shown by arrow AR26, through the eighth outer conductive member 16H and into terminal 16tH.

[0154] If the terminal portion 16tH of the eighth outer conductive component 16H is connected to a high potential and the terminal portion 16tE of the fifth outer conductive component 16E is connected to a low potential, the current flows in the opposite direction to the above-described path.

[0155] The optical module driving device 101 is controlled by a control device. The control device is typically a device located outside the optical module driving device 101 and connected to the optical module driving device 101 via an insulating substrate 10.

[0156] The control device can control the contraction of each of the eight shape memory alloy wires 9 by controlling the voltage applied to terminals 16tA to 16tH. Alternatively, the control device can control the contraction of each of the eight shape memory alloy wires 9 by controlling the current supplied to each of the eight shape memory alloy wires 9 via terminals 16tA to 16tH. Furthermore, the control device can, for example, use the driving force generated by the contraction of the shape memory alloy wires 9, which serves as the drive unit DM, to swing the movable side member MB. Moreover, by swinging the movable side member MB, the control device can realize a hand tremor correction function as one of the lens adjustment functions.

[0157] Next, refer to Figure 10 The configuration for causing the first swinging component 2 to swing relative to the second swinging component 7 is described. Figure 10 This is a right view of the first swinging component 2 (lower retainer 2D), the second swinging component 7, and the base component 8 in their assembled state. Specifically, Figure 10 (a) is a right view of the first swinging member 2 (lower holding body 2D), the second swinging member 7, and the base member 8 when the optical module drive device 101 is in the initial state. Figure 10(b) is a right view of the first swinging component 2 (lower holding body 2D), the second swinging component 7, and the base component 8 when the first swinging component 2 (lower holding body 2D) swings only an angle θ1 in the counterclockwise direction around the first swinging axis AX1.

[0158] The initial state of the optical module driving device 101 refers to the state in which no current is supplied to the shape memory alloy wire 9 constituting the driving section DM. In this initial state, the optical axis direction is perpendicular to the axial direction of the first swing axis AX1, and the optical axis direction is perpendicular to the axial direction of the second swing axis AX2. In addition, the initial state can also be referred to as the neutral state in which the first swing member 2 and the second swing member 7, which are swinging by the driving section DM, are in a neutral position.

[0159] like Figure 10 As shown, a right shaft portion 2XR protruding to the right is formed in the central portion of the right wall portion 2WR of the lower retainer 2D. In this embodiment, the right shaft portion 2XR has an upwardly protruding semi-cylindrical shape and is received by an upwardly recessed right receiving portion 7SR formed in the central portion of the right wall portion 7WR of the second swing member 7. Furthermore, in Figure 10 Although it is not visible in the middle, it is like Figure 5B As shown, a left shaft portion 2XL protruding to the left is formed in the central portion of the left wall portion 2WL of the lower retainer 2D. In this embodiment, the left shaft portion 2XL has a semi-cylindrical shape protruding upwards, as shown... Figure 6A As shown, it is received by the upwardly recessed left receiving portion 7SL formed in the central part of the left wall portion 7WL of the second swing member 7.

[0160] Furthermore, a pair of shaft portions 2X (left shaft portion 2XL and right shaft portion 2XR) formed on the lower retainer 2D and a pair of receiving portions 7S (left receiving portion 7SL and right receiving portion 7SR) formed on the second swing member 7 constitute the first swing mechanism SM1. The first swing mechanism SM1 is a part of the swing mechanism SM and is a mechanism for swinging the first swing member 2 about the first swing axis AX1 relative to the second swing member 7. In addition, the pair of receiving portions 7S are configured to have a generally V-groove shape to match the pair of shaft portions 2X which have a semi-cylindrical shape, but they can also be configured to have a semi-circular groove shape. In addition, the pair of shaft portions 2X and the pair of receiving portions 7S are configured to make line contact along the first swing axis AX1, but they can also be configured to make surface contact.

[0161] exist Figure 10In the example shown, the first swing mechanism SM1 is composed of a pair of shaft portions 2X formed on the lower retainer 2D and protruding upward, and a pair of receiving portions 7S formed on the second swing member 7 and recessed upward. However, it may also be composed of a pair of receiving portions formed on the lower retainer 2D and recessed downward, and a pair of shaft portions formed on the second swing member 7 and protruding downward.

[0162] exist Figure 10 In the example shown in (b), the control device causes the first swing member 2 (lower retainer 2D) to swing counterclockwise around the first swing axis AX1 when viewed from the right by contracting the third inner line 9A3 and the fourth inner line 9A4, which constitute the first rear line pair located on the rear side (X2 side) of the first swing member 2 (lower retainer 2D). Furthermore, the control device causes the first swing member 2 (lower retainer 2D) to swing clockwise around the first swing axis AX1 when viewed from the right by contracting the first inner line 9A1 and the second inner line 9A2, which constitute the first front line pair located on the front side (X1 side) of the first swing member 2 (lower retainer 2D).

[0163] Next, refer to Figure 11 The configuration for causing the second swinging member 7 to swing relative to the base member 8 is described. Figure 11 This is a front view of the first swinging component 2 (lower retainer 2D), the second swinging component 7, and the base component 8 in their assembled state, including, for example... Figure 8C The cross-section of the base component 8 when viewed from the X1 side as shown by the arrow, containing the single-dotted line XI-XI and parallel to the YZ plane. Specifically, Figure 11 (a) is a front view of the first swinging member 2 (lower holding body 2D), the second swinging member 7, and the base member 8 when the optical module drive device 101 is in the initial state. Figure 11 (b) is a front view of the first swing member 2 (lower side retainer 2D), the second swing member 7, and the base member 8 when the second swing member 7 swings only an angle θ2 in the counterclockwise direction around the second swing axis AX2.

[0164] like Figure 11 As shown, a forward-protruding front axle portion 7XF is formed in the central portion of the front wall portion 7WF of the second swing member 7. In this embodiment, the front axle portion 7XF has a downward-protruding semi-cylindrical shape and is received by a front receiving portion 8SF formed in the central portion of the front wall portion 8WF of the base member 8 and recessed downward. Furthermore, in Figure 11 Although it is not visible in the middle, it is like Figure 6BAs shown, a rear axle portion 7XB protruding rearward is formed in the central portion of the rear wall portion 7WB of the second swing member 7. In this embodiment, the rear axle portion 7XB has a downwardly protruding semi-cylindrical shape, such as... Figure 7 The rear receiving portion 8SB, which is formed in the central part of the rear wall portion 8WB of the base component 8 and recessed downwards, is received as shown.

[0165] Furthermore, a pair of shaft portions 7X (front shaft portion 7XF and rear shaft portion 7XB) formed on the second swing member 7 and a pair of receiving portions 8S (front receiving portion 8SF and rear receiving portion 8SB) formed on the base member 8 constitute the second swing mechanism SM2. The second swing mechanism SM2 is a part of the swing mechanism SM and is a mechanism for swinging the second swing member 7 relative to the base member 8 about the second swing axis AX2. In addition, the first swing member 2 swings together with the second swing member 7 about the second swing axis AX2 through the second swing mechanism SM2. In addition, the pair of receiving portions 8S are configured to have a generally V-groove shape to match the pair of shaft portions 7X which have a semi-cylindrical shape, but they can also be configured to have a semi-circular groove shape. In addition, the pair of shaft portions 7X and the pair of receiving portions 8S are configured to contact along the second swing axis AX2, but they can also be configured to contact at a surface.

[0166] exist Figure 11 In the example shown, the second swing mechanism SM2 is composed of a pair of shaft portions 7X formed on the second swing member 7 and protruding downward, and a pair of receiving portions 8S formed on the base member 8 and recessed downward. However, it may also be composed of a pair of receiving portions formed on the second swing member 7 and recessed upward, and a pair of shaft portions formed on the base member 8 and protruding upward.

[0167] exist Figure 11 In the example shown in (b), the control device causes the second swing member 7 to swing counterclockwise around the second swing axis AX2 when in the main view by contracting the first outer line 9B1 and the second outer line 9B2, which are located on the left side (Y1 side) of the second swing member 7 and constitute the second left side line pair. Furthermore, the control device causes the second swing member 7 to swing clockwise around the second swing axis AX2 when in the main view by contracting the third outer line 9B3 and the fourth outer line 9B4, which are located on the right side (Y2 side) of the second swing member 7 and constitute the second right side line pair.

[0168] Next, refer to Figure 12A as well as Figure 12B The configuration of the magnetic sensor 11 for detecting the swing state of the movable side component MB will be described. Figure 12A This is a cross-sectional view of the cover component and the magnetic component, showing, as follows Figure 1B As shown by the arrow in the image, when viewed from the Y2 side, it contains... Figure 1BThe state of the cover component 4 and the magnetic component in the cross-section of the single-dotted dashed line XIIA-XIIA and the virtual plane parallel to the XZ plane. Figure 12B This is a cross-sectional view of the cover component and the magnetic component, showing, as follows Figure 1B As shown by the arrow in the image, when viewed from the X1 side, it contains... Figure 1B The state of the cover component 4 and the magnetic component in the cross-section of the single-dotted line XIIB-XIIB and the virtual plane parallel to the YZ plane. Additionally, in Figure 12A as well as Figure 12B For clarity, illustrations of components other than the cover component 4 and the magnetic component are omitted. Additionally, in... Figure 12A as well as Figure 12B For clarity, a cross pattern is added to the N pole of the permanent magnet in the magnetic component, and a dot pattern is added to the S pole of the permanent magnet in the magnetic component.

[0169] The magnetic components include first magnetic components MG1 to tenth magnetic components MG10. Hereinafter, for ease of explanation, first magnetic components MG1 to tenth magnetic components MG10 will sometimes be referred to as magnetic components MG. Additionally, first magnetic components MG1 to fourth magnetic components MG4 and seventh magnetic components MG7 to tenth magnetic components MG10 will sometimes be referred to as movable magnetic components, and fifth magnetic components MG5 and sixth magnetic components MG6 will sometimes be referred to as fixed magnetic components.

[0170] like Figure 5B As shown, the first magnetic component MG1 and the second magnetic component MG2 are magnetic components disposed on the first swing component 2 (lower holding body 2D). Figure 5B For clarity, coarse dot patterns are added to the magnetic components (first magnetic component MG1, second magnetic component MG2, seventh magnetic component MG7, and eighth magnetic component MG8). Specifically, as shown... Figure 5B As shown, the first magnetic component MG1 is embedded in a recess formed in the center of the lower surface of the left wall portion 2WL of the lower retainer 2D and is fixed with adhesive. Similarly, the second magnetic component MG2 is embedded in a recess formed in the center of the lower surface of the right wall portion 2WR of the lower retainer 2D and is fixed with adhesive.

[0171] like Figure 6A As shown in (c), the third magnetic component MG3 and the fourth magnetic component MG4 are magnetic components disposed on the second oscillating component 7. Figure 6A In (c), for clarity, the third magnetic component MG3 and the fourth magnetic component MG4 are supplemented with a coarse dot pattern. Specifically, as shown... Figure 6AAs shown in (c), the third magnetic component MG3 is embedded in the recess formed by the central portion of the upper surface of the left wall portion 7WL of the second swing component 7 and is fixed by adhesive. Similarly, the fourth magnetic component MG4 is embedded in the recess formed by the central portion of the upper surface of the right wall portion 7WR of the second swing component 7 and is fixed by adhesive.

[0172] The fifth magnetic component MG5 and the sixth magnetic component MG6 are components constituting the fixed side component FB. In this embodiment, the fifth magnetic component MG5 is the lower side cover component 4D, and the sixth magnetic component MG6 is the upper side cover component 4U. However, the fifth magnetic component MG5 may also be other components mounted on the lower side cover component 4D. Similarly, the sixth magnetic component MG6 may also be other components mounted on the upper side cover component 4U.

[0173] like Figure 5B As shown, the seventh magnetic component MG7 and the eighth magnetic component MG8 are magnetic components disposed on the first swing component 2 (lower holding body 2D). Specifically, as... Figure 5B As shown, the seventh magnetic component MG7 is embedded in a recess formed in the center of the lower surface of the front wall portion 2WF of the lower retainer 2D and is fixed with adhesive. Similarly, the eighth magnetic component MG8 is embedded in a recess formed in the center of the lower surface of the rear wall portion 2WB of the lower retainer 2D and is fixed with adhesive.

[0174] like Figure 6B As shown, the ninth magnetic component MG9 and the tenth magnetic component MG10 are magnetic components disposed on the second oscillating component 7. Figure 6B For clarity, coarse dot patterns are added to the ninth magnetic component MG9 and the tenth magnetic component MG10. Specifically, as shown... Figure 6B As shown, the ninth magnetic component MG9 is embedded in the recess formed in the central portion of the lower surface of the front wall portion 7WF of the second swing component 7 and is fixed with adhesive. Similarly, the tenth magnetic component MG10 is embedded in the recess formed in the central portion of the lower surface of the rear wall portion 7WB of the second swing component 7 and is fixed with adhesive.

[0175] In this embodiment, the movable magnetic components (first magnetic component MG1 to fourth magnetic component MG4 and seventh magnetic component MG7 to tenth magnetic component MG10) are permanent magnets that are polarized along the Z-axis direction.

[0176] exist Figure 12AIn the diagram, the position of the magnetic component MG when the optical module driving device 101 is in its initial state is represented by a solid line. The positions of the seventh magnetic component MG7 and the eighth magnetic component MG8 when the first oscillating component 2 oscillates clockwise around the first oscillation axis AX1 when viewed from the right are represented by thick dashed lines. The positions of the seventh magnetic component MG7 and the eighth magnetic component MG8 when the first oscillating component 2 oscillates counterclockwise around the first oscillation axis AX1 when viewed from the right are represented by thin dashed lines. Furthermore, the positions of the ninth magnetic component MG9 and the tenth magnetic component MG10 do not change when the first oscillating component 2 oscillates around the first oscillation axis AX1.

[0177] exist Figure 12B In the diagram, the position of the magnetic component MG when the optical module driving device 101 is in its initial state is represented by a solid line; the positions of the first magnetic component MG1 to the fourth magnetic component MG4 when the second swing component 7 swings clockwise around the second swing axis AX2 in the main view are represented by a thick dashed line; and the positions of the first magnetic component MG1 to the fourth magnetic component MG4 when the second swing component 7 swings counterclockwise around the second swing axis AX2 in the main view are represented by a thin dashed line.

[0178] Here, we will explain the auxiliary mechanism that assists the driving force of the drive unit DM, which is used to swing the movable side member MB around the swing axis AX. First, we will explain the first auxiliary mechanism AM1 that assists the driving force of the first drive unit DM1, which is used to swing the first swing member 2 around the first swing axis AX1.

[0179] The swing state of the first swing component 2 is utilized as follows: Figure 5B The eighth magnetic component MG8, as shown, is installed on the first swing component 2 (lower retainer 2D), and as shown in the figure. Figure 2 The rear magnetic sensor 11B is installed on the tongue 10T located in the center of the rear side portion 10B of the insulating substrate 10 for detection.

[0180] like Figure 12A As shown, the rear magnetic sensor 11B is configured to detect the magnetic field generated by the eighth magnetic component MG8. Specifically, the closer the N-pole portions of the eighth magnetic component MG8 are to each other (i.e., the more the first swinging component 2 swings clockwise around the first swing axis AX1 when viewed from the right), the higher the voltage value output by the rear magnetic sensor 11B. Conversely, the closer the S-pole portions of the eighth magnetic component MG8 are to each other (i.e., the more the first swinging component 2 swings counterclockwise around the first swing axis AX1 when viewed from the right), the lower the voltage value output by the rear magnetic sensor 11B. Therefore, the control device can detect the swing state of the first swinging component 2 based on the magnitude of the voltage value output by the rear magnetic sensor 11B.

[0181] like Figure 12AAs shown, the seventh magnetic component MG7 and the ninth magnetic component MG9 are configured such that the magnetic attraction (hereinafter referred to as "first attraction") between the seventh magnetic component MG7 and the ninth magnetic component MG9 increases as the first swing component 2 rotates clockwise around the first swing axis AX1 when viewed from the right.

[0182] Furthermore, the driving force of the first drive unit DM1, which causes the first swing member 2 to swing clockwise, tends to decrease as the first swing member 2 swings clockwise. This is because the first drive unit DM1 is composed of a first shape memory alloy wire 9A, and the more the first shape memory alloy wire 9A contracts, the smaller its shrinkage rate becomes. The shrinkage rate is, for example, the amount of shrinkage of the first shape memory alloy wire 9A when a predetermined temperature rise occurs. Therefore, the first attractive force compensates for the decrease in the driving force of the first drive unit DM1. Specifically, the seventh magnetic component MG7 and the ninth magnetic component MG9 are configured such that, when viewed from the right, the more the first swing member 2 swings clockwise around the first swing axis AX1, the smaller the distance between the N pole portion of the seventh magnetic component MG7 and the S pole portion of the ninth magnetic component MG9 becomes.

[0183] On the contrary, such as Figure 12A As shown, the eighth magnetic component MG8 and the tenth magnetic component MG10 are configured such that the more the first swing component 2 swings counterclockwise around the first swing axis AX1 when viewed from the right, the greater the magnetic attraction (hereinafter referred to as "second attraction") between the eighth magnetic component MG8 and the tenth magnetic component MG10 increases.

[0184] Furthermore, the driving force of the first drive unit DM1, which is used to swing the first swing member 2 counterclockwise, is the same as the driving force of the first drive unit DM1, which is used to swing the first swing member 2 clockwise. This driving force tends to decrease as the first swing member 2 swings counterclockwise. Therefore, the second attractive force compensates for the decrease in the driving force of the first drive unit DM1. Specifically, the eighth magnetic member MG8 and the tenth magnetic member MG10 are configured such that, when viewed from the right, the distance between the N pole portion of the eighth magnetic member MG8 and the S pole portion of the tenth magnetic member MG10 decreases as the first swing member 2 swings counterclockwise around the first swing axis AX1.

[0185] Thus, the seventh magnetic component MG7 to the tenth magnetic component MG10 function as the first auxiliary mechanism AM1, which assists the driving force of the first drive unit DM1 used to make the first swing component 2 swing around the first swing axis AX1.

[0186] Next, the second auxiliary mechanism AM2, which assists the driving force of the second drive unit DM2 used to swing the second swing member 7 around the second swing axis AX2, will be described.

[0187] The swing state of the second swing component 7 is utilized as follows: Figure 5B The first magnetic component MG1 and the second magnetic component MG2, as shown, are installed on the first swing component 2 (lower retainer 2D), and as shown in the figure. Figure 2 The left magnetic sensor 11L and the right magnetic sensor 11R, which are mounted on the insulating substrate 10, are used for detection.

[0188] like Figure 12B As shown, the left magnetic sensor 11L is configured to detect the magnetic field generated by the first magnetic component MG1. Specifically, the closer the S pole portions of the first magnetic component MG1 are to each other, that is, the more the second oscillating component 7 oscillates counterclockwise around the second oscillation axis AX2 in the main view, the lower the voltage value output by the left magnetic sensor 11L. Figure 12B As shown, the right magnetic sensor 11R is configured to detect the magnetic field generated by the second magnetic component MG2. Specifically, the closer the S pole portions of the second magnetic component MG2 are to each other, that is, the more the second swing component 7 swings clockwise around the second swing axis AX2 in the main view, the lower the voltage value output by the right magnetic sensor 11R. Therefore, the control device can detect the swing state of the second swing component 7 based on the magnitudes of the voltage values ​​output by the left magnetic sensor 11L and the right magnetic sensor 11R, respectively.

[0189] like Figure 12B As shown, the first magnetic component MG1 and the fifth magnetic component MG5 (lower cover component 4D) are configured such that the more the second swing component 7 swings counterclockwise around the second swing axis AX2 in the main view, the greater the magnetic attraction (hereinafter referred to as the "third attraction") between the first magnetic component MG1 and the fifth magnetic component MG5 (lower cover component 4D). Specifically, the first magnetic component MG1 and the fifth magnetic component MG5 (lower cover component 4D) are configured such that the more the second swing component 7 swings counterclockwise around the second swing axis AX2 in the main view, the smaller the distance between the first magnetic component MG1 and the fifth magnetic component MG5 (lower cover component 4D).

[0190] like Figure 12BAs shown, the fourth magnetic component MG4 and the sixth magnetic component MG6 (upper cover component 4U) are configured such that the more the second swing component 7 swings counterclockwise around the second swing axis AX2 in the main view, the greater the magnetic attraction (hereinafter referred to as "fourth attraction") between the fourth magnetic component MG4 and the sixth magnetic component MG6 (upper cover component 4U). Specifically, the fourth magnetic component MG4 and the sixth magnetic component MG6 (upper cover component 4U) are configured such that the more the second swing component 7 swings counterclockwise around the second swing axis AX2 in the main view, the smaller the distance between the fourth magnetic component MG4 and the sixth magnetic component MG6 (upper cover component 4U).

[0191] Furthermore, the driving force of the second drive unit DM2, which is used to swing the second swing member 7 in a counterclockwise direction, tends to decrease as the second swing member 7 swings in a counterclockwise direction. This is because the second drive unit DM2 is composed of a second shape memory alloy wire 9B, and the more the second shape memory alloy wire 9B contracts, the smaller its contraction rate becomes. Therefore, the third and fourth attractive forces function to compensate for the decrease in the driving force of the second drive unit DM2.

[0192] like Figure 12B As shown, the second magnetic component MG2 and the fifth magnetic component MG5 (lower cover component 4D) are configured such that the more the second swing component 7 swings clockwise around the second swing axis AX2 in the main view, the greater the fifth magnetic attraction between the second magnetic component MG2 and the fifth magnetic component MG5 (lower cover component 4D). Specifically, the second magnetic component MG2 and the fifth magnetic component MG5 (lower cover component 4D) are configured such that the more the second swing component 7 swings clockwise around the second swing axis AX2 in the main view, the smaller the distance between the second magnetic component MG2 and the fifth magnetic component MG5 (lower cover component 4D).

[0193] like Figure 12B As shown, the third magnetic component MG3 and the sixth magnetic component MG6 (upper cover component 4U) are configured such that the more the second swing component 7 swings clockwise around the second swing axis AX2 in the main view, the greater the sixth magnetic attraction between the third magnetic component MG3 and the sixth magnetic component MG6 (upper cover component 4U). Specifically, the third magnetic component MG3 and the sixth magnetic component MG6 (upper cover component 4U) are configured such that the more the second swing component 7 swings clockwise around the second swing axis AX2 in the main view, the smaller the distance between the third magnetic component MG3 and the sixth magnetic component MG6 (upper cover component 4U).

[0194] Furthermore, the driving force of the second drive unit DM2, which is used to swing the second swing member 7 clockwise, is the same as the driving force of the second drive unit DM2, which is used to swing the second swing member 7 counterclockwise, and tends to decrease as the second swing member 7 swings clockwise. Therefore, the fifth and sixth attractive forces function to compensate for the decrease in the driving force of the second drive unit DM2.

[0195] Thus, the first magnetic component MG1 to the sixth magnetic component MG6 function as the second auxiliary mechanism AM2, which assists the driving force of the second drive unit DM2 used to make the second swing component 7 swing around the second swing axis AX2. Furthermore, for ease of explanation, the first auxiliary mechanism AM1 and the second auxiliary mechanism AM2 will sometimes be referred to as auxiliary mechanism AM.

[0196] As mentioned above, Figure 1A , Figure 1B , Figure 2 ,as well as Figure 3 As shown, the optical module driving device 101 according to an embodiment of the present invention includes: a first swing member 2 capable of holding an optical module (camera module CM) having a lens body LS and an imaging element IS; a second swing member 7 connected to the first swing member 2 such that the first swing member 2 can swing about a first axis (first swing axis AX1) intersecting the optical axis direction; a fixed side member FB (base member 8) connected to the second swing member 7 such that the second swing member 7 can swing about a second axis (second swing axis AX2) intersecting the optical axis direction and perpendicular to the axial direction of the first axis (first swing axis AX1); and a driving unit DM that swings the first swing member 2 relative to the fixed side member FB to tilt the optical axis OA of the lens body LS. The driving unit DM is composed of a plurality of shape memory alloy wires 9, which are disposed between the movable side member MB including the first swing member 2 and the second swing member 7, and the fixed side member FB.

[0197] Since this configuration does not require magnets and coils as in configurations using voice coil motors, it can suppress the increase in size compared to configurations using voice coil motors.

[0198] like Figure 3 As shown, the drive unit DM may also have a plurality of first shape memory alloy wires 9A (first inner wires 9A1 to fourth inner wires 9A4) disposed between the first swing member 2 and the second swing member 7. Additionally, as... Figure 3As shown, the multiple shape memory alloy wires 9 disposed between the movable side component MB and the fixed side component FB can also be composed of multiple second shape memory alloy wires 9B (first outer wire 9B1 to fourth outer wire 9B4) disposed between the second swing component 7 and the fixed side component FB (base component 8).

[0199] like Figure 3 As shown, the first shape memory alloy wire 9A can also be disposed at two positions separated by the first swing member 2 along the axial direction of the second axis (second swing axis AX2). Additionally, as... Figure 3 As shown, the second shape memory alloy wire 9B can also be disposed at two positions separated by the first swing member 2 in the axial direction of the first axis (first swing axis AX1).

[0200] In this configuration, the second swinging member 7, connected to the first swinging member 2, is supported in a balanced manner by shape memory alloy wires 9 at various positions, such as front, rear, left, and right of the first swinging member 2. Therefore, this configuration provides the effect of stabilizing the swing of the first swinging member 2 (lens body LS).

[0201] Alternatively, two first shape memory alloy wires 9A can be arranged at two separate positions along the axial direction of the second axis (second swing axis AX2). Furthermore, these two first shape memory alloy wires 9A can intersect each other when viewed along the axial direction of the second axis (second swing axis AX2), forming a first wire pair. Figure 3 In the example shown, the first inner line 9A1 and the second inner line 9A2 constitute the first front line pair as the first line pair, and the third inner line 9A3 and the fourth inner line 9A4 constitute the first rear line pair as the first line pair.

[0202] Alternatively, two second shape memory alloy wires 9B can be arranged at two separate positions along the axial direction of the first axis (first swing axis AX1). Furthermore, these two second shape memory alloy wires 9B can intersect each other when viewed along the axial direction of the first axis (first swing axis AX1), forming a second wire pair. Figure 3 In the example shown, the first outer line 9B1 and the second outer line 9B2 constitute the second left-side line pair as the second line pair, and the third outer line 9B3 and the fourth outer line 9B4 constitute the second right-side line pair as the second line pair.

[0203] Because this configuration uses a pair of shape memory alloy wires 9 to make the first oscillating member 2 (lens body LS) oscillate, it achieves a more stable oscillation of the first oscillating member 2 (lens body LS) compared to using a single shape memory alloy wire 9. Furthermore, by arranging the two shape memory alloy wires 9 at an angle, this configuration increases the length of the shape memory alloy wires 9 compared to arranging them parallel in the vertical direction (Z-axis direction). Therefore, if the shrinkage rate of the shape memory alloy wires 9 is the same, this configuration increases the amount of oscillation of the first oscillating member 2 (lens body LS) compared to arranging the two shape memory alloy wires 9 parallel in the vertical direction (Z-axis direction).

[0204] Preferably, one end of each of the two first shape memory alloy wires 9A constituting the first wire pair is conductive to each other, and / or one end of each of the two second shape memory alloy wires 9B constituting the second wire pair is conductive to each other. Figure 3 In the example shown, the first inner line 9A1 and the second inner line 9A2 constituting the first front line pair are connected in series, the third inner line 9A3 and the fourth inner line 9A4 constituting the first rear line pair are connected in series, the first outer line 9B1 and the second outer line 9B2 constituting the second left line pair are connected in series, and the third outer line 9B3 and the fourth outer line 9B4 constituting the second right line pair are connected in series.

[0205] This configuration readily forms a conductive path for energizing the two first shape memory alloy wires 9A constituting the first wire pair. Furthermore, it readily forms a conductive path for energizing the two second shape memory alloy wires 9B constituting the second wire pair. Additionally, when the two shape memory alloy wires 9 constituting the wire pair are connected in series, since the current flowing through the two series-connected shape memory alloy wires 9 can be made the same, it achieves the effect of suppressing differences in the amount of contraction of the two shape memory alloy wires 9 that are energized.

[0206] The first oscillating component 2 may also have a first metal component 5A that allows one end of each of the two first shape memory alloy wires 9A constituting the first wire pair to be connected to each other. In this case, one end of each of the two first shape memory alloy wires 9A is fixed to the first metal component 5A. Figure 3In the example shown, the first swing component 2 is equipped with a first front metal component 5AF that connects the first inner wire 9A1 and the second inner wire 9A2, which constitute the first front wire pair, in series, and a first rear metal component 5AB that connects the third inner wire 9A3 and the fourth inner wire 9A4, which constitute the first rear wire pair, in series. Furthermore, one end (lower end) of each of the first inner wire 9A1 and the second inner wire 9A2 is fixed to the first front metal component 5AF, and one end (lower end) of each of the third inner wire 9A3 and the fourth inner wire 9A4 is fixed to the first rear metal component 5AB.

[0207] In this configuration, there is no need to provide a circuit for allowing current to flow from the outside into the first shape memory alloy wire 9A in the first oscillating member 2. Therefore, in this configuration, there is no need to embed conductive components within the first oscillating member 2 through insert molding or the like. Thus, this configuration simplifies the construction of the first oscillating member 2.

[0208] The second oscillating component 7 may also have a second metal component 5B that fixes the other end of one of the two first shape memory alloy wires 9A, and a third metal component 5C that fixes the other end of the other of the two first shape memory alloy wires 9A. In this case, the first metal component 5A, the second metal component 5B, and the third metal component 5C may each have plate-like portions arranged in approximately parallel configurations. Figure 3 In the example shown, the second swing member 7 is equipped with a second front metal member 5BF that fixes the other end (upper end) of the first inner line 9A1, and a third front metal member 5CF that fixes the other end (upper end) of the second inner line 9A2. Furthermore, as... Figure 4B As shown, the plate-shaped portion PT1 of the first front metal component 5AF, the plate-shaped portion PT2 of the second front metal component 5BF, and the plate-shaped portion PT3 of the third front metal component 5CF are arranged approximately parallel to each other with a gap GP. Furthermore, since plate-shaped portions PT2 and PT3 are located on the same plane, plate-shaped portion PT2... Figure 4B It is not visible in the middle. Therefore, in Figure 4B The leader line indicating the position of the plate-shaped part PT2 is drawn with a dashed line.

[0209] In this configuration, the first front metal component 5AF, the second front metal component 5BF, and the third front metal component 5CF are formed from the same metal component (metal sheet), for example, through sheet metal processing. Furthermore, as shown in FIG4, the first front metal component 5AF, the second front metal component 5BF, and the third front metal component 5CF can be provided as modules with the first inner line 9A1 and the second inner line 9A2 mounted on them. Therefore, this configuration provides the effect of easily assembling the first front metal component 5AF, the second front metal component 5BF, and the third front metal component 5CF to the second swing member 7.

[0210] like Figure 6A As shown, a first conductive component (first inner conductive component 15A) and a second conductive component (second inner conductive component 15B) made of metal can also be embedded in the second swing component 7. Additionally, as... Figure 8B As shown, a first leaf spring component (first leaf spring 6A) and a second leaf spring component (second leaf spring 6B) made of metal may also be provided between the second swing component 7 and the fixed side component FB (base component 8). Furthermore, as... Figure 6A As shown, the first conductive member (first inner conductive member 15A) may also have a first connecting portion (side connecting portion 15sA) and a second connecting portion (upper surface connecting portion 15pA) exposed from the second swing member 7. Additionally, as... Figure 6A As shown, the second conductive member (second inner conductive member 15B) may also have a third connecting portion (side connecting portion 15sB) and a fourth connecting portion (upper surface connecting portion 15pB) exposed from the second swing member 7. In this case, the first connecting portion (side connecting portion 15sA) may also be connected to the second metal member 5B (second front metal member 5BF), and the third connecting portion (side connecting portion 15sB) may also be connected to the third metal member 5C (third front metal member 5CF). Furthermore, as... Figure 8A As shown, the second connecting part (upper surface connecting part 15pA) can also be connected to the first leaf spring 6A, and the fourth connecting part (upper surface connecting part 15pB) can also be connected to the second leaf spring 6B.

[0211] This configuration enables the implementation of a circuit that allows current to flow from the outside into the first shape memory alloy wire 9A with a simple structure.

[0212] The second oscillating component 7 may also have a fourth metal component 5D that enables one end of each of the two second shape memory alloy wires 9B constituting the second wire pair to be connected to each other. Furthermore, one end of each of the two second shape memory alloy wires 9B may be fixed in the fourth metal component 5D. Figure 3In the example shown, a fourth left-side metal component 5DL and a fourth right-side metal component 5DR are mounted on the second swing component 7. The fourth left-side metal component 5DL connects the first outer line 9B1 and the second outer line 9B2, which constitute the second line pair, in series. The fourth right-side metal component 5DR connects the third outer line 9B3 and the fourth outer line 9B4, which constitute the second line pair, in series. Furthermore, one end (upper end) of each of the first outer line 9B1 and the second outer line 9B2 is fixed to the fourth left-side metal component 5DL, and one end (upper end) of each of the third outer line 9B3 and the fourth outer line 9B4 is fixed to the fourth right-side metal component 5DR.

[0213] In this configuration, the first swing member 2 is provided with a first front metal member 5AF that connects the first front wire pairs in series and a first rear metal member 5AB that connects the first rear wire pairs in series, and the second swing member 7 is provided with a fourth left metal member 5DL that connects the second left wire pairs in series and a fourth right metal member 5DR that connects the second right wire pairs in series. Therefore, this configuration provides the effect of easily ensuring a conductive path for energizing the shape memory alloy wire 9.

[0214] The first swing member 2 and the second swing member 7 can also be configured such that, through a first shaft portion provided on one of the first swing member 2 and the second swing member 7, and a first receiving portion provided on the other and receiving the first shaft portion, the first swing member 2 can swing relative to the second swing member 7 about a first axis (first swing axis AX1). Figure 10 In the example shown, the first swing member 2 (lower holding body 2D) and the second swing member 7 are configured to connect via a pair of shaft portions 2X (left shaft portion 2XL (see reference) provided on the lower holding body 2D as the first shaft portion) that serve as the first shaft portion. Figure 5B ) and the right shaft portion 2XR), and a pair of receiving portions 7S (left receiving portion 7SL) provided on the second swing member 7 and receiving a pair of shaft portions 2X as the first receiving portion (refer to the left receiving portion 7SL). Figure 6A (c) and the right receiving part 7SR), the lower retainer 2D can swing relative to the second swinging part 7 about the first axis (first swinging axis AX1).

[0215] Alternatively, the second swing member 7 and the fixed-side member FB can be configured such that, through a second shaft portion provided on one of the second swing member 7 and the fixed-side member FB, and a second receiving portion provided on the other and receiving the second shaft portion, the second swing member 7 can swing relative to the fixed-side member FB about a second axis (second swing axis AX2). Figure 11In the example shown, the second swing member 7 and the fixed side member FB (base member 8) are configured such that a pair of shafts 7X (front shaft 7XF and rear shaft 7XB, which serve as second shafts) provided on the second swing member 7 are connected. Figure 6B ), and a pair of receiving parts 8S (front receiving part 8SF and rear receiving part 8SB) which are provided on the base member 8 and receive a pair of shaft parts 7X as second receiving parts (see reference 8SF). Figure 7 (c) The second swinging member 7 is able to swing relative to the base member 8 about the second axis (second swinging axis AX2).

[0216] This configuration enables the swing mechanism SM to be implemented with a simple structure. Specifically, the swing mechanism SM includes a first swing mechanism SM1 and a second swing mechanism SM2. Moreover, the first swing mechanism SM1 is simply implemented by combining a pair of shaft portions 2X and a pair of receiving portions 7S, and the second swing mechanism SM2 is simply implemented by combining a pair of shaft portions 7X and a pair of receiving portions 8S.

[0217] The first receiving portion may also have a concave portion that is open at least in the optical axis direction. Furthermore, a first force-applying member may be provided between the first swing member 2 (lower retainer 2D) and the second swing member 7 to exert a force that causes the first shaft portion and the first receiving portion to press against each other.

[0218] exist Figure 10 In the example shown, the right receiving portion 7SR has a concave portion that is open in the optical axis direction, i.e., a V-groove shape that is recessed upwards. For the left receiving portion 7SL (see reference...) Figure 6A (c) is also the same. Moreover, as Figure 8C As shown, a leaf spring 6 (first leaf spring 6A to fourth leaf spring 6D) is provided between the lower retainer 2D and the second swing member 7, functioning as a first force-applying member. This leaf spring 6 applies a force that presses the right shaft portion 2XR and the right bearing portion 7SR against each other, and also applies a force that presses the left shaft portion 2XL against the left bearing portion 7SL against each other. In the above embodiment, the inner portion 6i, the inner elastic arm portion 6g, and the central portion 6m of the leaf spring 6 function as the first force-applying member.

[0219] The second receiving portion may also have a concave portion that is open at least in the optical axis direction. Furthermore, a second force-applying member may be provided between the second swing member 7 and the fixed side member FB (base member 8) to exert a force that causes the second shaft portion and the second receiving portion to press against each other.

[0220] exist Figure 11 In the example shown, the front bearing portion 8SF has a concave portion that is open in the optical axis direction, i.e., a downwardly recessed V-groove shape. For the rear bearing portion 8SB (see...) Figure 7(c) is also the same. Moreover, as Figure 8C As shown, a leaf spring 6 (first leaf spring 6A to fourth leaf spring 6D) is provided between the second swing component 7 and the base component 8, which functions as a second force-applying component. The leaf spring 6 acts to cause the front axle portion 7XF to contact the front bearing portion 8SF (see reference). Figure 8A The force of pressing against each other, and the action of the rear axle 7XB and the rear bearing 8SB (see reference) Figure 8A The force is like pressing against each other. In the above embodiment, the outer portion 6e, the outer elastic arm portion 6f, and the central portion 6m of the leaf spring 6 function as a second force-applying component.

[0221] This configuration provides the effect of suppressing wobbling between a pair of shaft portions 2X and a pair of receiving portions 7S, and also suppressing wobbling between a pair of shaft portions 7X and a pair of receiving portions 8S.

[0222] The optical module driving device 101 can also be configured such that the first orientation (upward orientation) in which the first swing member 2 is forceped by the first force-applying member toward the side of the second swing member 7 (Z1 side) is opposite to the second orientation (downward orientation) in which the second swing member 7 is forceped by the second force-applying member toward the side of the fixed side member FB (base member 8) (Z2 side).

[0223] This configuration is achieved by positioning the central portion 6m of the leaf spring 6 higher than both the inner portion 6i and the outer portion 6e of the leaf spring 6. Therefore, compared to a configuration where one of the inner portion 6i and the outer portion 6e of the leaf spring 6 is higher than the central portion 6m and the other is lower than the central portion 6m, this configuration results in a reduction in the height dimension of the optical module drive device 101.

[0224] like Figure 5A as well as Figure 5B As shown, the first swing member 2 may also have: a first frame-shaped portion (frame-shaped portion 2F), and a first shaft portion (left shaft portion 2XL and right shaft portion 2XR) formed by two protruding portions protruding outward from the two opposing sidewall portions (left wall portion 2WL and right wall portion 2WR) of the first frame-shaped portion (frame-shaped portion 2F). Additionally, as... Figure 6AAs shown, the second swing member 7 may also have: a second frame-shaped portion (frame-shaped portion 7F) located outside the first frame-shaped portion (frame-shaped portion 2F), and a first receiving portion (left receiving portion 7SL and right receiving portion 7SR) formed by two concave portions at the lower ends of the two opposing sidewall portions (left wall portion 7WL and right wall portion 7WR) formed in the second frame-shaped portion (frame-shaped portion 7F). Moreover, the first receiving portion (left receiving portion 7SL and right receiving portion 7SR) may also be arranged on the upper side (subject side) of the first shaft portion (left shaft portion 2XL and right shaft portion 2XR). This configuration enables the first swing mechanism SM1 to be realized with a simple structure.

[0225] The first force-applying component and the second force-applying component can also be composed of the same leaf spring component (leaf spring 6). In the above embodiment, the first force-applying component is realized by the inner portion 6i, the inner elastic arm portion 6g, and the central portion 6m of the leaf spring 6, and the second force-applying component is realized by the central portion 6m, the outer elastic arm portion 6f, and the outer portion 6e of the leaf spring 6.

[0226] In this configuration, the leaf spring 6 functions as both a first force-applying component and a second force-applying component. Therefore, this configuration reduces the number of components. Furthermore, this configuration simplifies the assembly of the optical module drive unit 101. However, the first and second force-applying components could also be implemented as separate components.

[0227] The leaf spring 6 may also have a first fixing portion (inner portion 6i) fixed to the first swing member 2, a second fixing portion (central portion 6m) fixed to the second swing member 7, a third fixing portion (outer portion 6e) fixed to the fixing side member FB (base member 8), a first elastic arm portion (inner elastic arm portion 6g) disposed between the first fixing portion (inner portion 6i) and the second fixing portion (central portion 6m), and a second elastic arm portion (outer elastic arm portion 6f) disposed between the second fixing portion (central portion 6m) and the third fixing portion (outer portion 6e). In this case, the first fixing portion (inner portion 6i) may also be fixed to the first swing member 2 near the first axis (first swing axis AX1). This means that, for example, the position of the part where the inner portion 6i and the inner elastic arm portion 6g are connected is within a first predetermined distance from the first swing axis AX1 when viewed from above along the optical axis direction. Furthermore, the first predetermined distance is preferably a distance smaller than the first distance between the first swing axis AX1 and the front wall portion 2WF of the first swing member 2, more preferably a distance smaller than half of the first distance, and most preferably a distance smaller than one-quarter of the first distance. Additionally, the second fixing portion (central portion 6m) can also be fixed to the second swing member 7 near the second axis (second swing axis AX2). This means that, for example, the position of the portion where the central portion 6m connects to the outer elastic arm portion 6f, when viewed from above along the optical axis, is within a range of the second predetermined distance from the second swing axis AX2. Moreover, the second predetermined distance is preferably a distance smaller than the second distance between the second swing axis AX2 and the left wall portion 2WL of the first swing member 2, more preferably a distance smaller than half of the second distance, and most preferably a distance smaller than one-quarter of the second distance.

[0228] This configuration results in the ability to suppress the force (torque) borne by the leaf spring 6 when the movable side component MB swings.

[0229] Furthermore, in the optical module driving device 101 of the embodiment of the present invention, the driving unit DM may also have a first driving unit DM1 that causes the first swing member 2 to swing about a first axis (first swing axis AX1), and a second driving unit DM2 that causes the second swing member 7 to swing about a second axis (second swing axis AX2). In this case, the optical module driving device 101 may also have an auxiliary mechanism AM that assists in driving at least one of the first driving unit DM1 and the second driving unit DM2.

[0230] This configuration enables the movable side component MB to reliably swing even at large swing angles via the auxiliary mechanism AM.

[0231] The auxiliary mechanism AM preferably comprises: a first magnetic component MG1 and a second magnetic component MG2 disposed on one of the first swinging component 2 and the second swinging component 7, and a fixed magnetic component disposed on the fixed side component FB. In this case, the first magnetic component MG1 and the second magnetic component MG2 are arranged to face each other across a second axis (second swinging axis AX2) when viewed from above along the optical axis. Furthermore, the first magnetic component MG1 is configured such that when the second swinging component 7 swings in one direction around the second axis (second swinging axis AX2), the magnetic attraction between the first magnetic component MG1 and the fixed magnetic component increases. Additionally, the second magnetic component MG2 is configured such that when the second swinging component 7 swings in another direction around the second axis (second swinging axis AX2), the magnetic attraction between the second magnetic component MG2 and the fixed magnetic component increases.

[0232] In the above embodiments, the auxiliary mechanism AM has, for example... Figure 5B The diagram shows a first magnetic component MG1 and a second magnetic component MG2 installed in the first swinging component 2 (lower holding body 2D), and a cover component 4 serving as a fixed magnetic component. The first magnetic component MG1 and the second magnetic component MG2 are arranged to face each other across a second axis (second swinging axis AX2) when viewed from above along the optical axis. Furthermore, as shown... Figure 12B As shown, the first magnetic component MG1 is configured such that, when the first swinging component 2 and the second swinging component 7 swing counterclockwise around the second swing axis AX2 in the main view, the magnetic attraction between the first magnetic component MG1 and the fixed magnetic component (lower cover component 4D) increases. Furthermore, the second magnetic component MG2 is configured such that, when the first swinging component 2 and the second swinging component 7 swing clockwise around the second swing axis AX2 in the main view, the magnetic attraction between the second magnetic component MG2 and the fixed magnetic component (lower cover component 4D) increases.

[0233] This configuration enables the second swinging component 7 to reliably swing around the second axis (second swinging axis AX2) even when the swing angle is large, by utilizing the magnetic attraction between the magnetic components MG.

[0234] The auxiliary mechanism AM preferably has a first magnetic component MG1 and a second magnetic component MG2 provided on the first swing component 2, a third magnetic component MG3 and a fourth magnetic component MG4 provided on the second swing component 7, and a fifth magnetic component MG5 and a sixth magnetic component MG6 provided on the fixed side component FB (cover component 4).

[0235] In this case, the third magnetic component MG3 and the fourth magnetic component MG4 are configured to be opposite each other across the second axis (second swing axis AX2) when viewed from above along the optical axis.

[0236] Furthermore, the first magnetic component MG1 is configured such that when the second swing component 7 swings in one direction around the second axis (second swing axis AX2), the magnetic attraction between the first magnetic component MG1 and the fifth magnetic component MG5 increases, and the fourth magnetic component MG4 is configured such that when the second swing component 7 swings in one direction around the second axis (second swing axis AX2), the magnetic attraction between the fourth magnetic component MG4 and the sixth magnetic component MG6 increases.

[0237] The second magnetic component MG2 is configured such that when the second swing component 7 swings in another direction around the second axis (second swing axis AX2), the magnetic attraction between the second magnetic component MG2 and the fifth magnetic component MG5 increases, and the third magnetic component MG3 is configured such that when the second swing component 7 swings in another direction around the second axis (second swing axis AX2), the magnetic attraction between the third magnetic component MG3 and the sixth magnetic component MG6 increases.

[0238] In the above embodiments, the auxiliary mechanism AM has, for example... Figure 5B The first magnetic component MG1 and the second magnetic component MG2, which are provided in the first swing component 2 (lower holding body 2D), are shown as follows: Figure 6A The third magnetic component MG3 and the fourth magnetic component MG4, which are provided on the second swing component 7, are shown. Figure 12B The lower cover member 4D, which is the fifth magnetic component MG5, and the upper cover member 4U, which is the sixth magnetic component MG6, are shown. The third magnetic component MG3 and the fourth magnetic component MG4 are arranged to face each other across a second axis (second swing axis AX2) when viewed from above along the optical axis. Moreover, as... Figure 12BAs shown, the first magnetic component MG1 is configured such that, when the first swinging component 2 and the second swinging component 7 swing counterclockwise around the second swing axis AX2 in the main view, the magnetic attraction between the first magnetic component MG1 and the fifth magnetic component MG5 (lower cover component 4D) increases. The fourth magnetic component MG4 is configured such that, when the first swinging component 2 and the second swinging component 7 swing counterclockwise around the second swing axis AX2 in the main view, the magnetic attraction between the fourth magnetic component MG4 and the sixth magnetic component MG6 (upper cover component 4U) increases. Furthermore, the second magnetic component MG2 is configured such that, when the first swinging component 2 and the second swinging component 7 swing clockwise around the second swing axis AX2 in the main view, the magnetic attraction between the second magnetic component MG2 and the fifth magnetic component MG5 increases. And the third magnetic component MG3 is configured such that, when the first swinging component 2 and the second swinging component 7 swing clockwise around the second swing axis AX2 in the main view, the magnetic attraction between the third magnetic component MG3 and the sixth magnetic component MG6 increases.

[0239] This configuration results in the following effect: even when the swing angle is large, the second swing component 7 can reliably swing around the second axis (second swing axis AX2) by utilizing the magnetic attraction between the magnetic components MG.

[0240] The first magnetic component MG1, the second magnetic component MG2, the third magnetic component MG3, and the fourth magnetic component MG4, which are movable magnetic components, can also be made of magnets.

[0241] This configuration provides the following effect: even if the fixed side component FB does not have a magnet, that is, it does not use magnets as fixed magnetic components (the fifth magnetic component MG5 and the sixth magnetic component MG6), it can still assist the second swing component 7 in swinging around the second axis (the second swing axis AX2).

[0242] The fixed-side component FB may also be contained within a housing HS that internally configures the first swing component 2 and the second swing component 7. In this case, at least one of the fifth magnetic component MG5 and the sixth magnetic component MG6 may also be constituted by the housing HS. For example, at least one of the fifth magnetic component MG5 and the sixth magnetic component MG6 may also be part of the housing HS.

[0243] Because this configuration allows the components constituting the housing HS to be the same as those constituting the fixed magnetic components, it reduces the number of components.

[0244] The first swing member 2 and the second swing member 7 can also be configured such that the first swing member 2 can swing relative to the second swing member 7 about a first axis (first swing axis AX1) through a first shaft portion provided on one of the first swing member 2 and the second swing member 7 and a first receiving portion provided on the other and receiving the first shaft portion.

[0245] exist Figure 5A , Figure 5B , Figure 6A ,as well as Figure 6B In the example shown, the first swing member 2 and the second swing member 7 are configured such that the first swing member 2 can swing about a first axis (first swing axis AX1) relative to the second swing member 7 through a pair of shaft portions 2X (left shaft portion 2XL and right shaft portion 2XR) provided on the first swing member 2 as first shaft portions, and a pair of receiving portions 7S (left receiving portion 7SL and right receiving portion 7SR) provided on the second swing member 7 as first receiving portions and receiving the pair of shaft portions 2X.

[0246] In this case, the first magnetic component MG1 and the third magnetic component MG3 are as follows: Figure 8C As shown by the dashed line, the magnetic components MG1 and MG3 are arranged opposite each other across the left axis portion 2XL, and the magnetic force attracting each other acts between them. Figure 12B In the example shown, the first magnetic component MG1 and the third magnetic component MG3 are configured such that the N pole portion of the first magnetic component MG1 and the S pole portion of the third magnetic component MG3 face each other across a synthetic resin.

[0247] In addition, the second magnetic component MG2 and the fourth magnetic component MG4 are as follows Figure 10 As shown by the dashed line in (a), the magnetic components MG2 and MG4 are arranged opposite each other across the right shaft portion 2XR, and the magnetic force attracting each other acts between them. Figure 12B In the example shown, the second magnetic component MG2 and the fourth magnetic component MG4 are configured such that the N pole portion of the second magnetic component MG2 and the S pole portion of the fourth magnetic component MG4 face each other across a synthetic resin.

[0248] Furthermore, a leaf spring 6 (first leaf spring 6A to fourth leaf spring 6D) can be provided between the first swing member 2 and the second swing member 7 as a first force-applying member. This leaf spring 6 applies a force (acting force) that causes a pair of shaft portions 2X (left shaft portion 2XL and right shaft portion 2XR) serving as the first shaft portion and a pair of receiving portions 7S (left receiving portion 7SL and right receiving portion 7SR) serving as the first receiving portion to press against each other. In the above embodiment, the inner portion 6i, the inner elastic arm portion 6g, and the central portion 6m of the leaf spring 6 function as the first force-applying member.

[0249] This configuration results in the following effect: even if the force exerted by the first force-applying component is not very strong, it can be compensated for by the magnetic force acting between the magnetic components MG. For example... Figure 12A as well as Figure 12B As shown, the magnetic force acting between the magnetic components MG is the attraction force between the first magnetic component MG1 and the third magnetic component MG3, the second magnetic component MG2 and the fourth magnetic component MG4, the seventh magnetic component MG7 and the ninth magnetic component MG9, and the eighth magnetic component MG8 and the tenth magnetic component MG10, respectively.

[0250] Alternatively, a first magnetic sensor may be provided on the fixed-side component FB. In this case, the first magnetic sensor may also include a magnetic sensor disposed opposite to the first magnetic component MG1 or the third magnetic component MG3 in the optical axis direction, and a magnetic sensor disposed opposite to the second magnetic component MG2 or the fourth magnetic component MG4 in the optical axis direction.

[0251] exist Figure 2 In the example shown, a first magnetic sensor (left magnetic sensor 11L and right magnetic sensor 11R) is provided on the insulating substrate 10, which serves as the fixed-side component FB. Figure 12B As shown, the first magnetic sensor includes a left magnetic sensor 11L disposed opposite to the first magnetic component MG1 in the optical axis direction, and a right magnetic sensor 11R disposed opposite to the second magnetic component MG2 in the optical axis direction.

[0252] In this configuration, the first magnetic sensor uses the magnetic fields generated by the first magnetic component MG1 and the second magnetic component MG2 to detect the amount of swing of the second swing component 7 around the second swing axis AX2.

[0253] Auxiliary mechanisms (AM) can also have Figure 5B The seventh magnetic component MG7 and the eighth magnetic component MG8, as shown, are located on the first swing component 2 at a position on the second axis (second swing axis AX2) when viewed from above along the optical axis. Additionally, the auxiliary mechanism AM may also have... Figure 6B The ninth magnetic component MG9 and the tenth magnetic component MG10 shown are located on the second swing component 7 at a position on the second axis (second swing axis AX2) when viewed from above along the optical axis.

[0254] In this case, at least one of the seventh magnetic component MG7 and the ninth magnetic component MG9 is a magnet, and at least one of the eighth magnetic component MG8 and the tenth magnetic component MG10 is a magnet.

[0255] Furthermore, the seventh magnetic component MG7 and the ninth magnetic component MG9 are configured such that when the first swinging component 2 swings in one direction around the first axis (first swinging axis AX1), the magnetic attraction between the seventh magnetic component MG7 and the ninth magnetic component MG9 increases. For example, as Figure 12A As shown, the seventh magnetic component MG7 and the ninth magnetic component MG9 are configured such that the N pole portion of the seventh magnetic component MG7 and the S pole portion of the ninth magnetic component MG9 face each other across a synthetic resin in the optical axis direction.

[0256] Furthermore, the eighth magnetic component MG8 and the tenth magnetic component MG10 are configured such that when the first swinging component 2 swings in another direction around the first axis (first swinging axis AX1), the magnetic attraction between the eighth magnetic component MG8 and the tenth magnetic component MG10 increases. For example, as Figure 12A As shown, the eighth magnetic component MG8 and the tenth magnetic component MG10 are configured such that the N pole portion of the eighth magnetic component MG8 and the S pole portion of the tenth magnetic component MG10 face each other across a synthetic resin in the optical axis direction.

[0257] In the above embodiment, the seventh magnetic component MG7 to the tenth magnetic component MG10 are permanent magnets that are magnetized by two poles along the Z-axis direction.

[0258] Moreover, such as Figure 12A As shown, the seventh magnetic component MG7 and the ninth magnetic component MG9 are configured such that when the first swinging component 2 swings clockwise around the first swinging axis AX1 in a right-viewing position, the N pole portion of the seventh magnetic component MG7 approaches the S pole portion of the ninth magnetic component MG9, and the magnetic attraction between the seventh magnetic component MG7 and the ninth magnetic component MG9 increases.

[0259] In addition, such as Figure 12A As shown, the eighth magnetic component MG8 and the tenth magnetic component MG10 are configured such that when the first swinging component 2 swings counterclockwise around the first swinging axis AX1 in a right-viewing position, the N pole portion of the eighth magnetic component MG8 approaches the S pole portion of the tenth magnetic component MG10, and the magnetic attraction between the eighth magnetic component MG8 and the tenth magnetic component MG10 increases.

[0260] This configuration provides the following effect: the magnetic force acting between the magnetic components MG facilitates the oscillation of the first oscillating component 2 around the first oscillation axis AX1, based on the first drive unit DM1. Furthermore, this configuration provides the following effect: even with a large oscillation angle, the first oscillating component 2 can reliably oscillate around the first axis (first oscillation axis AX1) by utilizing the magnetic attraction force acting between the magnetic components MG.

[0261] The eighth magnetic component MG8 can also be made of a magnet. In this case, a second magnetic sensor (rear magnetic sensor 11B) for detecting the magnetic field from the eighth magnetic component MG8 can also be provided on the fixed side component FB so that the second magnetic sensor is located at a position separate from the outside of the eighth magnetic component MG8 along the direction of the second axis (second swing axis AX2).

[0262] In the above embodiment, the eighth magnetic component MG8 is composed of a permanent magnet magnetized with two poles along the Z-axis. Furthermore, as... Figure 12A As shown, the rear magnetic sensor 11B, which serves as the second magnetic sensor and detects the magnetic field from the eighth magnetic component MG8, is provided on the fixed-side component FB. Figure 2 The tongue 10T of the insulating substrate 10 shown is positioned so that the rear magnetic sensor 11B is separated from the outer side (X2 side) of the eighth magnetic component MG8 along the direction of the second axis (second swing axis AX2).

[0263] In this configuration, the second magnetic sensor (rear magnetic sensor 11B) can detect the amount of oscillation of the first oscillating component 2 around the first oscillating axis AX1 by using the magnetic field generated by the eighth magnetic component MG8.

[0264] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described above. Various modifications and substitutions can be applied to the above embodiments without departing from the scope of the present invention. In addition, the various features described with reference to the above embodiments can be appropriately combined as long as they are not technically contradictory.

[0265] For example, in the above embodiment, the first front side line pair formed by the first inner side line 9A1 and the second inner side line 9A2 is disposed on the front side (X1 side) of the first swing member 2, the first rear side line pair formed by the third inner side line 9A3 and the fourth inner side line 9A4 is disposed on the rear side (X2 side) of the first swing member 2, the second left side line pair formed by the first outer side line 9B1 and the second outer side line 9B2 is disposed on the left side (Y1 side) of the first swing member 2, and the second right side line pair formed by the third outer side line 9B3 and the fourth outer side line 9B4 is disposed on the right side (Y2 side) of the first swing member 2. However, the number of shape memory alloy wires 9 disposed in at least one of the front side, rear side, left side, and right side of the first swing member 2 may also be one. In this case, a single shape memory alloy wire 9 may also be fixed or supported at the two ends and the central part in a V-shape or an inverted V-shape. For example, a shape memory alloy wire 9 disposed on the front side of the first swing member 2 can also be hooked at the center to a protrusion formed in the front wall portion 7WF of the second swing member 7, with both ends fixed to the first front metal member 5AF. In this case, the first front metal member 5AF is divided into two.

[0266] In addition, in the above embodiment, the position of the movable side component MB is detected based on the output of the magnetic sensor 11, but it can also be detected based on the output of other sensors such as a sensor that detects the resistance value of the shape memory alloy wire 9.

[0267] In addition, in the above embodiments, the metal component 5 is fixed to the fixed object (first swing component 2 (lower side retainer 2D), second swing component 7, or base component 8) by adhesive or welding, but it can also be embedded in the fixed object, or it can be a conductive pattern formed on the surface of the fixed object.

[0268] Furthermore, in the above embodiment, the first swing member 2 and the second swing member 7 are configured such that the first swing member 2 can swing relative to the second swing member 7 about a first axis (first swing axis AX1) via a first shaft portion provided on one of the first swing member 2 and the second swing member 7, and a first receiving portion provided on the other and receiving the first shaft portion. However, it is also possible to configure it such that a sphere is disposed between the first swing member 2 and the second swing member 7, through which the first swing member 2 can swing relative to the second swing member 7 about the first axis (first swing axis AX1). That is, the first swing member 2 and the second swing member 7 can also be connected via a sphere.

[0269] Furthermore, in the above embodiment, the second swing member 7 and the fixed-side member FB are configured such that the second swing member 7 can swing relative to the fixed-side member FB about a second axis (second swing axis AX2) via a second shaft portion provided on one side of the second swing member 7 and the fixed-side member FB, and a second receiving portion provided on the other side and receiving the second shaft portion. However, it is also possible to configure it such that a sphere is disposed between the second swing member 7 and the fixed-side member FB, through which the second swing member 7 can swing relative to the fixed-side member FB about a second axis (second swing axis AX2). That is, the second swing member 7 and the fixed-side member FB can also be connected via a sphere.

[0270] Explanation of reference numerals in the attached figures

[0271] 2…First swinging component, 2A…Outer peripheral wall, 2B…Upper plate, 2D…Lower retainer, 2F…Frame-shaped part, 2K…Opening, 2T…Protrusion, 2U…Upper retainer, 2XL…Left shaft, 2XR…Right shaft, 2WB…Rear wall, 2WF…Front wall, 2WL…Left wall, 2WR…Right wall, 3…Flexible cable, 4…Cover component, 4A…Outer peripheral wall, 4A1…First side plate, 4A2…Second side plate, 4A3…Third side plate, 4A4…Fourth side plate, 4B…Upper plate, 4C…Bottom, 4D…Lower cover component, 4K…Opening, 4S…Receiving part, 4U…Upper cover component, 4WL…Left wall, 4WR…Right wall, 5…Metal component, 5A…First metal component 5B…Second metal component, 5C…Third metal component, 5D…Fourth metal component, 5E…Fifth metal component, 5F…Sixth metal component, 5AB…First rear metal component, 5AF…First front metal component, 5BB…Second rear metal component, 5BF…Second front metal component, 5CB…Third rear metal component, 5CF…Third front metal component, 5DL…Fourth left metal component, 5DR…Fourth right metal component, 5EL…Fifth left metal component, 5ER…Fifth right metal component, 5FL…Sixth left metal component, 5FR…Sixth right metal component, 6…Leaf spring, 6A…First leaf spring, 6B…Second leaf spring, 6C…Third leaf spring, 6D…Fourth leaf spring, 6H1… 6H2… Second through hole, 6H3… Third through hole, 6H4… Fourth through hole, 6eA~6eD… Outer part, 6fA~6fD… Outer elastic arm, 6gA~6gD… Inner elastic arm, 6iA~6iD… Inner part, 6mA~6mD… Central part, 7… Second swing member, 7F… Frame-shaped part, 7SL… Left support part, 7SR… Right support part, 7XB… Rear axle part, 7XF… Front axle part, 7WB… Rear wall part, 7WF… Front wall part, 7WL… Left wall part, 7WR… Right wall part, 8… Base member, 8D1… First base part, 8D2… Second base part, 8D3… Third base part, 8D4… Fourth base part, 8F… Frame-shaped part, 8SB… Rear support part 8SF…Front receiving portion, 8WB…Rear wall portion, 8WF…Front wall portion, 8WL…Left wall portion, 8WR…Right wall portion, 9…Shape memory alloy wire, 9A…First shape memory alloy wire, 9A1…First inner wire, 9A2…Second inner wire, 9A3…Third inner wire, 9A4…Fourth inner wire, 9B…Second shape memory alloy wire, 9B1…First outer wire, 9B2…Second outer wire, 9B3…Third outer wire, 9B4…Fourth outer wire, 10…Insulating substrate, 10B…Rear side portion, 10L…Left side portion, 10R…Right side portion, 10T…Tongue portion, 11…Magnetic sensor, 11B…Rear magnetic sensor, 11L…Left magnetic sensor, 11R…Right magnetic sensor, 15A…First inner conductive component15B…Second inner conductive component, 15C…Third inner conductive component, 15D…Fourth inner conductive component, 15pA~15pD…Upper surface connection portion, 15sA~15sD…Side connection portion, 16A…First outer conductive component, 16B…Second outer conductive component, 16C…Third outer conductive component, 16D…Fourth outer conductive component, 16E…Fifth outer conductive component, 16F…Sixth outer conductive component, 16G…Seventh outer conductive component, 16H…Eighth outer conductive component, 16pA~16pD…Upper surface connection portion, 16sE~16sH…Side connection portion, 16tA~16tH…Terminal portion, 101…Optical module driving device, AH1, AH2…Rectangular hole, AM…Auxiliary mechanism, AM1…First auxiliary mechanism, AM2…Second auxiliary mechanism, AX1…First swing axis, AX2… Two swing axes, CB…substrate, CM…camera module, DM…drive unit, DM1…first drive unit, DM2…second drive unit, FB…fixed side component, HS…housing, ID…imaging device, IS…imaging element, J1~J4…holding part, LD…lens drive device, LS…lens body, MB…movable side component, MG1…first magnetic component, MG2…second magnetic component, MG3…third magnetic component, MG4…fourth magnetic component, MG5…fifth magnetic component, MG6…sixth magnetic component, MG7…seventh magnetic component, MG8…eighth magnetic component, MG9…ninth magnetic component, MG10…tenth magnetic component, OA…optical axis, PT1~PT3…plate-shaped part, RH1, RH2…circular hole, SH…sensor holder, SM…swing mechanism, SM1…first swing mechanism, SM2…second swing mechanism.

Claims

1. An optical module driving device, characterized in that, have: The first swinging component is capable of holding the optical module, which has a lens and an imaging element; The second swinging component is connected to the first swinging component in such a way that the first swinging component can swing around a first axis that intersects the optical axis direction; The fixed side component is connected to the second swing component in such a way that the second swing component can swing about a second axis that intersects the optical axis direction and is perpendicular to the axial direction of the first axis. as well as The drive unit causes the first swinging component to swing relative to the fixed side component, thereby tilting the optical axis of the lens body. In the optical module driving device, The drive unit has a first drive unit that causes the first swing member to swing about the first axis and a second drive unit that causes the second swing member to swing about the second axis. The optical module driving device includes an auxiliary mechanism that assists in driving at least one of the first driving unit and the second driving unit. The auxiliary mechanism has: The first magnetic component and the second magnetic component are disposed on one of the first oscillating component and the second oscillating component; as well as A fixed magnetic component is provided on the fixed side component. The first magnetic component and the second magnetic component are configured such that, when viewed from above along the optical axis, they are positioned opposite each other across the second axis. The first magnetic component is configured such that, when the second oscillating component oscillates in one direction about the second axis, the magnetic attraction between the first magnetic component and the fixed magnetic component increases. The second magnetic component is configured such that, when the second oscillating component oscillates about the second axis in another direction, the magnetic attraction between the second magnetic component and the fixed magnetic component increases. The first magnetic component and the second magnetic component are made of magnets.

2. The optical module driving device as described in claim 1, The first magnetic component and the second magnetic component are disposed on the first oscillating component. The auxiliary mechanism also has: The third magnetic component and the fourth magnetic component are provided on the second swing component; and The fifth and sixth magnetic components are provided on the fixed side component. The third magnetic component and the fourth magnetic component are configured to be opposite each other across the second axis when viewed from above along the optical axis. The first magnetic component is configured such that, when the second oscillating component oscillates in one direction about the second axis, the magnetic attraction between the first magnetic component and the fifth magnetic component, which is the fixed magnetic component, increases; and the fourth magnetic component is configured such that, when the second oscillating component oscillates in one direction about the second axis, the magnetic attraction between the fourth magnetic component and the sixth magnetic component increases. The second magnetic component is configured such that when the second oscillating component oscillates in another direction about the second axis, the magnetic attraction between the second magnetic component and the fifth magnetic component increases, and the third magnetic component is configured such that when the second oscillating component oscillates in another direction about the second axis, the magnetic attraction between the third magnetic component and the sixth magnetic component increases.

3. The optical module driving device as described in claim 2, The third and fourth magnetic components are made of magnets.

4. The optical module driving device as described in claim 3, The fixed-side component has a housing in which the first swing component and the second swing component are disposed. At least one of the fifth magnetic component and the sixth magnetic component is formed by the housing.

5. The optical module driving device as described in claim 3 or 4, The first swing member and the second swing member are configured such that, through a first shaft portion provided in one of the first swing member and the second swing member, and a first receiving portion provided in the other of the first swing member and receiving the first shaft portion, the first swing member can swing about a first axis relative to the second swing member. The first magnetic component and the third magnetic component are arranged opposite each other across the first shaft portion, and a magnetic force attracts each other between the first magnetic component and the third magnetic component. The second magnetic component and the fourth magnetic component are arranged opposite each other across the first shaft portion, and a magnetic force attracts each other between the second magnetic component and the fourth magnetic component.

6. The optical module driving device as described in claim 5, A first force-applying component is provided between the first swing component and the second swing component. The first force-applying component applies a force that causes the first shaft portion and the first receiving portion to press against each other.

7. The optical module driving device as described in claim 5 or 6, A first magnetic sensor is provided on the fixed side component. The first magnetic sensor includes: A magnetic sensor disposed at a position opposite to the first magnetic component or the third magnetic component in the optical axis direction; and A magnetic sensor disposed at a position opposite to the second magnetic component or the fourth magnetic component in the optical axis direction.

8. The optical module driving device as described in any one of claims 1 to 7, The auxiliary mechanism has: The seventh and eighth magnetic components are disposed on the portion of the first oscillating component located on the second axis when viewed from above along the optical axis; and The ninth and tenth magnetic components are disposed on the portion of the second oscillating component located on the second axis when viewed from above along the optical axis. At least one of the seventh magnetic component and the ninth magnetic component is a magnet. At least one of the eighth magnetic component and the tenth magnetic component is a magnet. The seventh and ninth magnetic components are configured such that, when the first oscillating component oscillates in one direction about the first axis, the magnetic attraction between the seventh and ninth magnetic components increases. The eighth magnetic component and the tenth magnetic component are configured such that when the first oscillating component oscillates about the first axis in another direction, the magnetic attraction between the eighth magnetic component and the tenth magnetic component increases.

9. The optical module driving device as described in claim 8, The eighth magnetic component is made of a magnet, and a second magnetic sensor for detecting the magnetic field from the eighth magnetic component is disposed on the fixed side component such that the second magnetic sensor is located at a position separate from the outside of the eighth magnetic component along the direction of the second axis.

10. The optical module driving device as described in any one of claims 1 to 4, The first swing member and the second swing member are configured such that, through a first shaft portion provided in one of the first swing member and the second swing member, and a first receiving portion provided in the other of the first swing member and receiving the first shaft portion, the first swing member can swing about a first axis relative to the second swing member. The second swing member and the fixed side member are configured such that the second swing member can swing about the second axis relative to the fixed side member through a second shaft portion provided on one of the second swing member and the fixed side member and a second receiving portion provided on the other of the second swing member and the fixed side member and receiving the second shaft portion.

11. The optical module driving device as described in claim 10, The first receiving portion has a concave portion that is open at least in the optical axis direction. A first force-applying component is provided between the first swing component and the second swing component. The first force-applying component applies a force that causes the first shaft portion and the first receiving portion to press against each other. The second receiving portion has a concave portion that is open at least in the optical axis direction. A second force-applying component is provided between the second swing component and the fixed side component. The second force-applying component applies a force that causes the second shaft portion and the second receiving portion to press against each other.

12. The optical module driving device as described in claim 11, The first orientation in which the first swinging component is forced towards the second swinging component by the first force-applying component is opposite to the second orientation in which the second swinging component is forced towards the fixed side component by the second force-applying component.

13. The optical module driving device as described in claim 12, The first swinging component has a first frame-shaped portion and a first shaft portion, the first shaft portion being composed of two protruding portions that protrude outward from two opposing sidewall portions of the first frame-shaped portion. The second swing member has a second frame-shaped portion and a first receiving portion. The second frame-shaped portion is located outside the first frame-shaped portion, and the first receiving portion is composed of two concave portions formed at the lower ends of two opposing sidewall portions of the second frame-shaped portion. The first receiving part is disposed on the upper side of the first shaft part.

14. The optical module driving device as described in any one of claims 11 to 13, The first force-applying component and the second force-applying component are both composed of the same leaf spring component.

15. The optical module driving device as described in claim 14, The leaf spring component has a first fixing part fixed to the first swinging component, a second fixing part fixed to the second swinging component, a third fixing part fixed to the fixed side component, a first elastic arm part disposed between the first fixing part and the second fixing part, and a second elastic arm part disposed between the second fixing part and the third fixing part. The first fixing part is fixed to the first swinging component near the first axis. The second fixing part is fixed to the second swinging component near the second axis.

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