Module driving device and optical device

Abstract

A module drive device (100) is provided with: a module holder (2); a coupling member (3) coupled to the module holder (2) so that the module holder (2) is swingable about a third rotation axis (RX3) intersecting the optical axis direction; a base member (8) coupled to the coupling member (3) so that the coupling member (3) can swing about a second rotation axis (RX2); and a drive unit (DM) that moves the module holder (2) relative to the base member (8). The module holder (2) and the connecting member (3) are connected via two first rotating bodies (Q1) disposed so as to face each other across an optical axis (OA), and the module holder (2) and the connecting member (3) connected via the first rotating bodies (Q1) are configured so as to be rotatable relative to each other about the optical axis (OA).

Description

Technical Field

[0001] The present disclosure relates to a module driving device and an optical device. Background Art

[0002] Conventionally, there is known an optical unit configured to rotate a camera module around an optical axis using a drive mechanism including a magnet and a coil (see Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2021-139990 Summary of the invention

[0006] Problems to be solved by the invention

[0007] However, this optical unit requires a rotation support mechanism and a universal joint mechanism, so the structure may become complicated.

[0008] Therefore, it is desirable to provide a modular driving device having a simpler configuration.

[0009] Means for solving problems

[0010] A module driving device according to one embodiment of the present invention comprises: a module holding body capable of holding an optical module having a lens body and a shooting element; a connecting component connected to the module holding body in such a manner that the module holding body can swing around a first axis intersecting the optical axis direction; a fixed side component connected to the connecting component in such a manner that the connecting component can swing around a second axis perpendicular to the axial direction of the first axis; and a driving unit for moving the module holding body relative to the fixed side component. The module driving device is characterized in that at least one of the module holding body and the connecting component and the connecting component and the fixed side component are connected via two first rotating bodies arranged opposite to each other with the optical axis separated therefrom, and the two corresponding components connected via the first rotating bodies are configured to be able to rotate relative to each other around the optical axis.

[0011] Effects of the Invention

[0012] The module drive device described above can achieve a simpler structure than a device using a rotation support mechanism and a universal joint mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a stereogram of the optical device.

[0014] Figure 2 It is an exploded perspective view of the optical device.

[0015] Figure 3 It is an exploded perspective view of the module drive device.

[0016] Figure 4 It is a perspective view of a module holder with various components installed.

[0017] Figure 5 It is a figure which shows the upper surface and the bottom surface of a module holding body.

[0018] Figure 6 It is a perspective view of a connecting member to which various components are mounted.

[0019] Figure 7 It is a figure which shows the upper surface and the bottom surface of a connection member.

[0020] Figure 8 It is a perspective view of the base assembly with various components mounted thereon.

[0021] Fig. 9 It is a figure which shows the upper surface and the bottom surface of a base member.

[0022] Fig.10 It is a top view of the module holding body, the connecting member and the base member.

[0023] Fig.11 It is a cross-sectional view of the module holding body, the connecting member and the base member.

[0024] Fig.12 It is a cross-sectional view of the module holding body, the connecting member and the base member.

[0025] Fig.13 This is a right side view of a metal component with a shape memory alloy wire installed.

[0026] Fig.14 This is a front view of a metal component to which a shape memory alloy wire is mounted.

[0027] Fig.15 It is a three-dimensional diagram of metal parts, conductive parts, current-carrying parts, and shape memory alloy wires.

[0028] Fig.16 It is a diagram showing the path of the current flowing through the first line.

[0029] Fig.17 It is a diagram showing the path of the current flowing through the second line.

[0030] Fig.18 1 is a diagram showing the path of the current flowing through the seventh line.

[0031] Fig.19 It is a diagram showing the path of the current flowing through the 8th line.

[0032] Fig. 20This is a table showing the expansion and contraction state of the shape memory alloy wire when the module holding body is moved.

[0033] Fig.21 This is a front view of the module holder, the connecting member, and the base member.

[0034] Fig. 22 This is a right side view of the module holder, connecting member, and base member.

[0035] Fig.23 It is a top view of the module holding body, the connecting member and the base member.

[0036] Fig.24 It is an exploded perspective view of the lens driving device.

[0037] Fig.25 This is a three-dimensional diagram of the module-side metal parts, leaf springs, current-carrying parts, and module-side shape memory alloy wires.

[0038] Fig.26 This is a top view of the movable metal parts and leaf springs on the module side.

[0039] Fig. 27 FIG. 2 is a diagram showing the path of the current flowing through the seventh line constituting the module-side driving unit.

[0040] Fig.28 1 is a diagram showing the path of a current flowing through the eighth line constituting the module-side driving unit.

[0041] Fig.29 This is a table showing the expansion and contraction state of the module-side shape memory alloy wire when the lens holder is moved.

[0042] Fig.30 It is a perspective view of the module-side embedded current-carrying component, the third embedded current-carrying component, and the intermediate current-carrying component. DETAILED DESCRIPTION

[0043] Hereinafter, an optical device 150 according to an embodiment of the present disclosure will be described with reference to the drawings. Figure 1 1 is a perspective view of an optical device 150 in a state where a camera module MD as an example of an optical module is mounted. Figure 2 is an exploded perspective view of an optical device 150 including a module driving device 100, Figure 3 1 is an exploded perspective view of the module driving device 100. In the example shown in the figure, the module driving device 100 is a camera module driving device.

[0044] exist Figure 1In , X1 represents one direction of the X axis constituting the three-dimensional orthogonal coordinate system, and X2 represents the other direction of the X axis. Y1 represents one direction of the Y axis constituting the three-dimensional orthogonal coordinate system, and Y2 represents the other direction of the Y axis. Z1 represents one direction of the Z axis constituting the three-dimensional orthogonal coordinate system, and Z2 represents the other direction of the Z axis. Figure 1 In the figure, the X1 side of the optical device 150 corresponds to the front side (front side) of the optical device 150, and the X2 side of the optical device 150 corresponds to the rear side (back side) of the optical device 150. The Y1 side of the optical device 150 corresponds to the left side of the optical device 150, and the Y2 side of the optical device 150 corresponds to the right side of the optical device 150. The Z1 side of the optical device 150 corresponds to the upper side (subject side) of the optical device 150, and the Z2 side of the optical device 150 corresponds to the lower side (imaging element side) of the optical device 150. The same is true for other components in other figures.

[0045] like Figure 2 As shown, the module driving device 100 constituting the optical device 150 includes a cover member 4 as a part of the fixed side member FB. The cover member 4 is configured to function as a part of the frame HS that covers the various components constituting the module driving device 100. In the example shown in the figure, the cover member 4 is formed of a non-magnetic metal. However, the cover member 4 may also be formed of a magnetic metal. Specifically, Figure 2 As shown, the cover member 4 has a box-shaped outer shape for defining a storage portion 4S. The camera module MD is stored in the storage portion 4S.

[0046] exist Figure 1 In the example shown, the cover part 4 has a rectangular cylindrical outer wall portion 4A, and a rectangular ring-shaped and flat top plate portion 4B that is continuous with the upper end (end on the Z1 side) of the outer wall portion 4A. A quadrilateral opening 4K is formed in the center of the top plate portion 4B. The outer 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. Furthermore, the first side plate portion 4A1 and the third side plate portion 4A3 extend vertically relative to the second side plate portion 4A2 and the fourth side plate portion 4A4.

[0047] like Figure 1 As shown, the cover part 4 is joined to the base part 8 by an adhesive. The adhesive is, for example, a light-curing adhesive. The light-curing adhesive is, for example, an ultraviolet-curing adhesive or a visible-light-curing adhesive. The adhesive may also be a thermosetting adhesive or a moisture-curing adhesive. The same applies to the adhesive described later for joining one part to another part or for bonding and fixing one part to another part. The base part 8 joined to the cover part 4 by an adhesive and the cover part 4 together constitute the frame HS.

[0048] The camera module MD is an example of an optical module. Figure 2 As shown, it is composed of a lens driving device LD, a lens body LS held by the lens driving device LD, and an imaging element IS fixed to a substrate (flexible substrate FC) in a manner opposite to the lens body LS. A spacer SP is fixed to the lens driving device LD, and the flexible substrate FC on which the imaging element IS is mounted is fixed to the spacer SP. In the example shown in the figure, a frame-shaped spacer SP is arranged between the lens driving device LD and the flexible substrate FC. The imaging element IS is accommodated in a space formed between the spacer SP and the flexible substrate FC in a state where the imaging surface is exposed at the opening of the spacer SP. An IR cutoff filter may also be arranged between the lens body LS and the imaging element IS. In this case, the IR cutoff filter may also be pasted on the upper surface of the frame of the spacer SP.

[0049] The flexible substrate FC is a flexible substrate on which a wiring pattern is formed for connecting the imaging element IS to a device located outside the module driving device 100. In the example shown in the figure, the flexible substrate FC is a flexible printed circuit substrate configured to be repeatedly deformable. The imaging element IS may also be mounted on a rigid substrate. In this case, the rigid substrate may also be connected to the flexible substrate FC and connected to the outside via the flexible substrate FC. In this configuration, the flexible substrate FC can absorb the movement of the rigid substrate.

[0050] In the example shown in the figure, the camera module MD is a module-side driving unit DMx (see Fig.24 However, the camera module MD may also be a camera module having a driving unit of another type, such as a voice coil motor type including a magnet and a coil or a piezoelectric type.

[0051] Specifically, the module-side driving unit DMx of the camera module MD is configured to move the lens body LS along the optical axis direction of the lens body LS, that is, the Z-axis direction, on the Z1 side of the imaging element IS. By moving the lens body LS in this way, the camera module MD can realize an automatic focus adjustment function as one of the lens adjustment functions. Specifically, the camera module MD moves the lens body LS in a direction away from the imaging element IS, thereby enabling macro photography, and moves the lens body LS in a direction close to the imaging element IS, thereby enabling infinity photography.

[0052] The camera module MD may be configured to be able to move the lens body LS in at least one of the X-axis direction and the Y-axis direction. By moving the lens body LS in this way, the camera module MD may also realize another function of blur correction as a lens adjustment function.

[0053] Figure 1Indicates the state of the lens body LS and the lens driving device LD when the camera module MD is in a neutral state (neutral position). When the lens body LS can be translated along the Z-axis direction relative to the frame HS of the module driving device 100, the neutral state of the camera module MD refers to a state in which the lens body LS is located in the middle of the movable range in the Z-axis direction. Typically, in the neutral state of the camera module MD, the lens body LS is located in the center of the movable range in the Z-axis direction. The same is true for the case in which the lens body LS can be translated along the X-axis direction and the case in which the lens body LS can be translated along the Y-axis direction. The initial state of the camera module MD when power is not supplied to the module-side driving unit DMx can also be set to the neutral state.

[0054] The camera module MD may be a fixed focus camera module. That is, the lens body LS may be arranged so as not to be movable relative to the imaging element IS.

[0055] like Figure 3 As shown, a driving unit DM, a module holder 2, a connecting member 3, a metal member 5, an upper conductive member UC, a lower conductive member LC, and the like are accommodated in a housing HS of the module driving device 100.

[0056] The driving unit DM includes a shape memory alloy wire SA as an example of a shape memory actuator. In the illustrated example, the shape memory alloy wire SA includes a first wire SA1 to an eighth wire SA8 having approximately the same length and approximately the same diameter. When an electric current flows through the shape memory alloy wire SA, the temperature rises and it contracts according to the rise in its temperature. The driving unit DM can move the module holder 2 by utilizing the contraction of the shape memory alloy wire SA. The shape memory alloy wire SA is configured so that when one or more of the first wire SA1 to the eighth wire SA8 contracts, the module holder 2 moves, and another one or more are stretched (elongated) by the movement. In the illustrated example, the first wire SA1 to the fourth wire SA4 are also referred to as the first shape memory alloy wire SC1, and the fifth wire SA5 to the eighth wire SA8 are also referred to as the second shape memory alloy wire SC2.

[0057] In the example shown in the figure, the driving unit DM is configured to realize the three-degree-of-freedom movement of the movable side member MB. The three-degree-of-freedom movement includes rotation (rotation) around the optical axis direction, that is, the first direction (Z-axis direction), rotation (swing) around the second direction (X-axis direction) perpendicular to the first direction, and rotation (swing) around the third direction (Y-axis direction) perpendicular to the first direction and the second direction. The first direction (Z-axis direction) is a direction parallel to the first rotation axis RX1 consistent with the optical axis OA of the lens body LS, the second direction (X-axis direction) is a direction parallel to the second rotation axis RX2, and the third direction (Y-axis direction) is a direction parallel to the third rotation axis RX3. The axis of the second rotation axis RX2 is orthogonal to the axis of the first rotation axis RX1, and the axis of the third rotation axis RX3 is orthogonal to the axis of the first rotation axis RX1. The axis of the second rotation axis RX2 and the axis of the third rotation axis RX3 have a twisted positional relationship, and are orthogonal to each other when viewed along the axis direction of the first rotation axis RX1. However, the axis of the second rotation axis RX2 and the axis of the third rotation axis RX3 may be orthogonal to each other on the same plane. That is, the first rotation axis RX1, the second rotation axis RX2, and the third rotation axis RX3 are rotation axes that are orthogonal to each other. The optical axis direction includes the direction of the optical axis OA with respect to the lens body LS and the direction parallel to the optical axis OA. The second rotation axis RX2 is also referred to as the first swing axis, and the third rotation axis RX3 is also referred to as the second swing axis.

[0058] When the module holder 2 is rotatable around the first rotation axis RX1 relative to the frame HS of the module driving device 100, the neutral state of the module driving device 100 refers to a state in which the module holder 2 is located in the middle of the rotatable range. Typically, in the neutral state of the module driving device 100, the module holder 2 is located in the center of the rotatable range around the first rotation axis RX1. The same is true for the case in which the module holder 2 is able to swing around the second rotation axis RX2 and the case in which the module holder 2 is able to swing around the third rotation axis RX3. The initial state of the module driving device 100 when no power is supplied to the driving unit DM may be set to the neutral state.

[0059] Typically, when the module driving device 100 is in a neutral state and the camera module MD is in a neutral state, the imaging surface of the imaging element IS is in a state perpendicular to the optical axis OA of the lens body LS arranged opposite to the imaging element IS. In this case, the central axis of the imaging element IS (imaging surface) coincides with the optical axis OA of the lens body. The imaging surface of the imaging element IS is a surface parallel to the upper surface of the imaging element IS on the subject side.

[0060] The movable side member MB is a member driven by the driving unit DM. In the example shown in the figure, the movable side member MB includes a module holder 2 capable of holding the camera module MD, and a connecting member 3 connected to the module holder 2 in a manner that the module holder 2 can swing. The camera module MD may also be included in the movable side member MB.

[0061] The module holder 2 is configured to hold a camera module MD having a lens body LS and an imaging element IS. In the example shown in the figure, the module holder 2 is formed by injection molding a synthetic resin such as a liquid crystal polymer (LCP). Figure 3 As shown, the module retaining body 2 has a rectangular cylindrical outer wall portion 2A, a rectangular ring-shaped and flat top plate portion 2B arranged to be continuous with the upper end (the end on the Z1 side) of the outer wall portion 2A, flange portions 2G respectively formed at the four corners of the outer wall portion 2A, and a snap-fitting portion 2T configured to snap-fit ​​with corresponding portions of other components.

[0062] In the example shown in the figure, the flange portion 2G includes a left front flange portion 2GFL formed at the left front corner of the module holder 2, a right front flange portion 2GFR formed at the right front corner of the module holder 2, a left rear flange portion 2GBL formed at the left rear corner of the module holder 2, and a right rear flange portion 2GBR formed at the right rear corner of the module holder 2.

[0063] In the example shown in the figure, the engagement portion 2T is a portion configured to engage with a portion of the connecting member 3. Specifically, the engagement portion 2T includes a left engagement portion 2TL (see FIG. 2 ) formed to protrude outward from the left side surface of the outer peripheral wall portion 2A. Figure 5 ), and a right engaging portion 2TR formed to protrude outward from the right side surface of the outer peripheral wall portion 2A.

[0064] In the example shown in the figure, the module holder 2 is configured to function as a cover member of the camera module MD. Specifically, the lens driving device LD is configured to be bonded to the lower end portion of the outer peripheral wall portion 2A by an adhesive.

[0065] The connecting member 3 is configured so that the module holder 2 can swing around a third rotation axis RX3 intersecting the optical axis direction. In the example shown in the figure, the connecting member 3 is formed by injection molding a synthetic resin such as a liquid crystal polymer (LCP). Figure 3 As shown, the connection member 3 has a rectangular ring-shaped frame portion arranged to surround a rectangular opening 3K. The frame portion has four sides 3E (first side 3E1 to fourth side 3E4). The connection member 3 has an engagement portion V configured to engage with a corresponding portion of another member.

[0066] In the example shown in the figure, the engaging portion V includes a first engaging portion V1 configured to engage with a portion of the module holder 2 and a second engaging portion V2 configured to engage with a portion of the base member 8. Specifically, the first engaging portion V1 includes a first left engaging portion V1L formed in the center of the second side 3E2 and a first right engaging portion V1R formed in the center of the fourth side 3E4. The second engaging portion V2 includes a second front engaging portion V2F formed in the center of the first side 3E1 and a second rear engaging portion V2B formed in the center of the third side 3E3.

[0067] The upper conductive member UC is a flexible conductive member that connects two members that move relative to each other on the upper side of the movable side member MB. In the example shown in the figure, the upper conductive member UC is made of a metal plate with copper alloy, titanium-copper alloy (titanium-copper) or copper-nickel alloy (nickel-tin-copper) as the main material.

[0068] In the example shown in the figure, the upper conductive component UC includes a first conductive component 6 connecting the module holder 2 and the connecting component 3, and a second conductive component 7 connecting the connecting component 3 and the base component 8. The first conductive component 6 includes a left conductive component 6L and a right conductive component 6R. The second conductive component 7 includes a front conductive component 7F and a rear conductive component 7B. In addition, the front conductive component 7F includes a left front conductive component 7FL and a right front conductive component 7FR, and the rear conductive component 7B includes a left rear conductive component 7BL and a right rear conductive component 7BR.

[0069] The lower conductive component LC is a flexible conductive component that connects two components that move relative to each other on the lower side of the movable side component MB, and is also called the third conductive component 9. In the example shown in the figure, the third conductive component 9 is made of a metal plate with copper alloy, titanium-copper alloy (titanium-copper) or copper-nickel alloy (nickel-tin-copper) as the main material. Specifically, the third conductive component 9 includes four conductive components (left front conductive component 9FL, right front conductive component 9FR, left rear conductive component 9BL and right rear conductive component 9BR) that connect the module holder 2 and the base component 8.

[0070] The base member 8 is formed by injection molding using a synthetic resin such as a liquid crystal polymer (LCP). Figure 3 As shown, the base member 8 has a substantially rectangular outline in a plan view and has an opening 8K in the center. Specifically, the base member 8 has four sides 8E (first side 8E1 to fourth side 8E4) arranged to surround the opening 8K. The base member 8 has an engaging portion 8T configured to engage with a corresponding portion of another member.

[0071] In the illustrated example, the engagement portion 8T is configured to engage with a portion of the connection member 3. Specifically, the engagement portion 8T includes a front engagement portion 8TF formed in the center of the first side 8E1 and a rear engagement portion 8TB formed in the center of the third side 8E3.

[0072] The metal component 5 is configured to fix the end of the shape memory alloy wire SA. Figure 3 As shown, the metal member 5 includes eight lower metal members 5F (a first lower connection plate 5F1 to an eighth lower connection plate 5F8) and eight upper metal members 5M (a first upper connection plate 5M1 to an eighth upper connection plate 5M8).

[0073] Four of the eight lower metal parts 5F (the first lower connection board 5F1 to the fourth lower connection board 5F4) are configured to be fixed to the module holding body 2, and the remaining four of the eight lower metal parts 5F (the fifth lower connection board 5F5 to the eighth lower connection board 5F8) are configured to be fixed to the base part 8. The eight upper metal parts 5M (the first upper connection board 5M1 to the eighth upper connection board 5M8) are configured to be fixed to the connecting part 3.

[0074] The shape memory alloy wire SA is arranged along the inner surface of the outer peripheral wall portion 4A of the cover member 4, and is configured to enable the movable side member MB to move relative to the fixed side member FB. Figure 3 As shown, the shape memory alloy wire SA includes the first wire SA1 to the eighth wire SA8, and is configured to enable the module holder 2 as the movable side member MB to move relative to the base member 8 as the fixed side member FB. Figure 3 As shown, one end of each of the first wire SA1 to the eighth wire SA8 is fixed to the lower metal member 5F by crimping or welding, and the other end is fixed to the upper metal member 5M by crimping or welding.

[0075] The first rotating body Q1 is a rotating body disposed between the module holding body 2 and the connecting member 3, and the second rotating body Q2 is a rotating body disposed between the connecting member 3 and the base member 8. In the illustrated example, the first rotating body Q1 and the second rotating body Q2 are balls (spheres) formed of a magnetic material (magnetic metal). However, the first rotating body Q1 and the second rotating body Q2 may also be formed of non-magnetic materials such as plastic, non-magnetic metal or ceramic. The first rotating body Q1 and the second rotating body Q2 may also have shapes other than spheres such as cylinders.

[0076] Specifically, the first rotating body Q1 includes a first left rotating body Q1L and a first right rotating body Q1R arranged to be opposite to each other across the optical axis OA in the Y-axis direction. A line connecting the center of the first left rotating body Q1L and the center of the first right rotating body Q1R constitutes an axis line of the third rotating axis RX3. The second rotating body Q2 includes a second front rotating body Q2F and a second rear rotating body Q2B arranged to be opposite to each other across the optical axis OA in the X-axis direction. A line connecting the center of the second front rotating body Q2F and the center of the second rear rotating body Q2B constitutes an axis line of the second rotating axis RX2.

[0077] The first magnet MG1 and the second magnet MG2 are arranged so that the module holder 2 and the connection member 3 can attract each other via the first rotating body Q1. In the example shown in the figure, the first magnet MG1 is mounted on the upper surface of the connection member 3, and the second magnet MG2 is mounted on the lower surface of the module holder 2.

[0078] The first magnet MG1 and the second magnet MG2 are rectangular permanent magnets, and are magnetized with two poles in the Z-axis direction. In the example shown in the figure, the upper sides of the first magnet MG1 and the second magnet MG2 are magnetized as N poles, and the lower sides are magnetized as S poles, so that the S pole of the first magnet MG1 and the N pole of the second magnet MG2 are opposite to each other in the Z-axis direction via the first rotating body Q1.

[0079] More specifically, the first magnet MG1 includes: a first left magnet MG1L, which is bonded and fixed to the upper side of the first left engaging portion V1L located at the center of the second side portion 3E2 of the connecting member 3; and a first right magnet MG1R, which is bonded and fixed to the upper side of the first right engaging portion V1R located at the center of the fourth side portion 3E4 of the connecting member 3. The second magnet MG2 includes: a second left magnet MG2L, which is bonded and fixed to the lower side of the left engaging portion 2TL located at the left side surface of the outer peripheral wall portion 2A of the module holding body 2; and a second right magnet MG2R, which is bonded and fixed to the lower side of the right engaging portion 2TR located at the right side surface of the outer peripheral wall portion 2A of the module holding body 2.

[0080] The third magnet MG3 and the fourth magnet MG4 are arranged so that the connection member 3 and the base member 8 attract each other via the second rotating body Q2. In the example shown in the figure, the third magnet MG3 is attached to the upper surface of the connection member 3, and the fourth magnet MG4 is attached to the lower surface of the base member 8.

[0081] The third magnet MG3 and the fourth magnet MG4 are rectangular permanent magnets, and are magnetized with two poles in the Z-axis direction. In the example shown in the figure, the upper sides of the third magnet MG3 and the fourth magnet MG4 are magnetized as N poles, and the lower sides are magnetized as S poles, so that the S pole of the third magnet MG3 and the N pole of the fourth magnet MG4 are opposite to each other in the Z-axis direction via the second rotating body Q2.

[0082] More specifically, the third magnet MG3 includes: a third front magnet MG3F, which is bonded and fixed to the upper side of the second front engaging portion V2F located in the center of the first side 3E1 of the connecting member 3; and a third rear magnet MG3B, which is bonded and fixed to the upper side of the second rear engaging portion V2B located in the center of the third side 3E3 of the connecting member 3. The fourth magnet MG4 includes: a fourth front magnet MG4F, which is bonded and fixed to the lower side of the front engaging portion 8TF located in the center of the first side 8E1 of the base member 8; and a fourth rear magnet MG4B, which is bonded and fixed to the lower side of the rear engaging portion 8TB located in the center of the third side 8E3 of the base member 8.

[0083] Next, refer to Figures 4 to 9 The module holding body 2 , the connecting member 3 , and the base member 8 constituting the module driving device 100 will be described in detail. Figure 4 It is a perspective view of the module holder 2 to which various components are mounted. Figure 5 The diagram shows the upper surface and the bottom surface of the module holder 2 .

[0084] Figure 6 It is a perspective view of the connection member 3 to which various components are mounted. Figure 7 It is a figure which shows the upper surface and the bottom surface of the connection member 3. Figure 8 It is a perspective view of the base member 8 on which various components are mounted. Fig. 9 It is a figure which shows the upper surface and the bottom surface of the base member 8.

[0085] exist Figure 4 In the module holder 2 shown in FIG. 1 , the first lower terminal block 5F1 is fixed to the front of the right front flange portion 2GFR of the module holder 2, the second lower terminal block 5F2 is fixed to the front of the left front flange portion 2GFL of the module holder 2, and the third lower terminal block 5F3 is fixed to the left rear flange portion 2GBL of the module holder 2 (see FIG. 1 ). Figure 5 ), and the fourth lower terminal block 5F4 is fixed to the rear of the right rear flange portion 2GBR of the module holder 2. The first to fourth lower terminal blocks 5F1 to 5F4 mounted on the module holder 2 constitute the first movable portion MB1 together with the module holder 2. The first to fourth lower terminal blocks 5F1 to 5F4 are fixed to the flange portion 2G by an adhesive.

[0086] like Figure 4As shown, the left conductive component 6L has an inner fixing portion 6IL fixed to the module holder 2, an outer fixing portion 6EL fixed to the connecting component 3, and an elastic portion 6GL connecting the inner fixing portion 6IL and the outer fixing portion 6EL. The right conductive component 6R has an inner fixing portion 6IR fixed to the module holder 2, an outer fixing portion 6ER fixed to the connecting component 3, and an elastic portion 6GR connecting the inner fixing portion 6IR and the outer fixing portion 6ER.

[0087] Specifically, the inner fixing portion 6IR is placed on the upper end surface of the right side seat portion 2DR formed on the right side surface of the outer peripheral wall portion 2A of the module holding body 2, and is fixed to the right side seat portion 2DR by an adhesive. The inner fixing portion 6IL is placed on the left side seat portion 2DL formed on the left side surface of the outer peripheral wall portion 2A of the module holding body 2 (see Figure 5 ) is fixed to the left side base portion 2DL by adhesive.

[0088] like Figure 4 As shown, the left front conductive component 9FL has an inner fixing portion 9IFL fixed to the module holder 2, an outer fixing portion 9EFL fixed to the base member 8, and an elastic portion 9GFL connecting the inner fixing portion 9IFL and the outer fixing portion 9EFL. The right front conductive component 9FR has an inner fixing portion 9IFR fixed to the module holder 2, an outer fixing portion 9EFR fixed to the base member 8, and an elastic portion 9GFR connecting the inner fixing portion 9IFR and the outer fixing portion 9EFR. The left rear conductive component 9BL has an inner fixing portion 9IBL fixed to the module holder 2, an outer fixing portion 9EBL fixed to the base member 8, and an elastic portion 9GBL connecting the inner fixing portion 9IBL and the outer fixing portion 9EBL. The right rear conductive member 9BR has an inner fixing portion 9IBR fixed to the module holding body 2, an outer fixing portion 9EBR fixed to the base member 8, and an elastic portion 9GBR connecting the inner fixing portion 9IBR and the outer fixing portion 9EBR.

[0089] Specifically, the inner fixing portion 9IFL is fixed to the lower surface of the left front flange portion 2GFL by adhesive, the inner fixing portion 9IFR is fixed to the lower surface of the right front flange portion 2GFR by adhesive, the inner fixing portion 9IBL is fixed to the lower surface of the left rear flange portion 2GBL by adhesive, and the inner fixing portion 9IBR is fixed to the lower surface of the right rear flange portion 2GBR by adhesive.

[0090] like Figure 4 as well as Figure 5As shown in FIG. 1 , a first groove G1 for receiving the first rotating body Q1 is formed on the upper end surface of the engaging portion 2T of the module holding body 2. The first groove G1 is an arc-shaped groove extending along the circumference of a circle centered on the optical axis OA. Specifically, Figure 5 As shown, the first groove G1 includes a first left groove G1L formed on the upper surface of the left engaging portion 2TL and a first right groove G1R formed on the upper surface of the right engaging portion 2TR. The first left groove G1L is formed to receive the first left rotating body Q1L, and the first right groove G1R is formed to receive the first right rotating body Q1R. Figure 5 The dotted line indicates the annular region sandwiched by two concentric circles centered on the optical axis OA, indicating that the first left groove G1L and the first right groove G1R are respectively a part of the annular region. In this way, the first groove G1 is configured so that the module holder 2 and the connecting member 3 connected via the first rotating body Q1 can rotate relative to each other around the optical axis OA.

[0091] like Figure 4 as well as Figure 5 As shown in FIG. 1 , a second receiving portion N2 for receiving the second magnet MG2 is formed on the lower end surface of the engaging portion 2T of the module holding body 2. The second receiving portion N2 is a rectangular parallelepiped recess extending along the side surface of the outer peripheral wall portion 2A. Specifically, Figure 5 As shown, the second receiving portion N2 includes a second left receiving portion N2L formed on the lower surface of the left engaging portion 2TL and a second right receiving portion N2R formed on the lower surface of the right engaging portion 2TR. The second left receiving portion N2L is formed to receive the second left magnet MG2L, and the second right receiving portion N2R is formed to receive the second right magnet MG2R.

[0092] like Figure 4 As shown, the module holder 2 is configured to embed the first embedded conducting component 20. In the example shown in the figure, the first embedded conducting component 20 is a component for conducting the first shape memory alloy wire SC1 and the second shape memory alloy wire SC2, and is embedded in the module holder 2 by insert molding. More specifically, the first embedded conducting component 20 includes four independent components (rear side conducting component 20B, front side conducting component 20F, left side conducting component 20L, and right side conducting component 20R).

[0093] exist Figure 6In the connecting member 3 shown, the first upper connecting plate 5M1 is fixed to the left side of the front of the first side 3E1 of the connecting member 3, the second upper connecting plate 5M2 is fixed to the right side of the front of the first side 3E1 of the connecting member 3, the third upper connecting plate 5M3 is fixed to the right side of the rear of the third side 3E3 of the connecting member 3, and the fourth upper connecting plate 5M4 is fixed to the left side of the rear of the third side 3E3 of the connecting member 3. The fifth upper connecting plate 5M5 is fixed to the rear side of the left side surface of the second side 3E2 of the connecting member 3, the sixth upper connecting plate 5M6 is fixed to the front side of the left side surface of the second side 3E2 of the connecting member 3, the seventh upper connecting plate 5M7 is fixed to the front side of the right side surface of the fourth side 3E4 of the connecting member 3, and the eighth upper connecting plate 5M8 is fixed to the rear side of the right side surface of the fourth side 3E4 of the connecting member 3. The first to eighth upper terminal plates 5M1 to 5M8 attached to the connection member 3 constitute the second movable portion MB2 together with the connection member 3. The first to eighth upper terminal plates 5M1 to 5M8 are fixed to the connection member 3 by an adhesive.

[0094] like Figure 6 As shown, the outer fixing portion 6ER of the right conductive member 6R is placed on the upper end surface of the right seat portion 3DR formed at the center of the fourth side portion 3E4 of the connecting member 3, and is fixed to the right seat portion 3DR by an adhesive. The outer fixing portion 6EL of the left conductive member 6L is placed on the upper end surface of the left seat portion 3DL formed at the center of the second side portion 3E2 of the connecting member 3, and is fixed to the left seat portion 3DL by an adhesive.

[0095] like Figure 6 As shown, the left front conductive member 7FL includes an inner fixing portion 7IFL fixed to the connecting member 3, an outer fixing portion 7EFL fixed to the base member 8, and an elastic portion 7GFL connecting the inner fixing portion 7IFL and the outer fixing portion 7EFL. The right front conductive member 7FR includes an inner fixing portion 7IFR fixed to the connecting member 3, an outer fixing portion 7EFR fixed to the base member 8, and an elastic portion 7GFR connecting the inner fixing portion 7IFR and the outer fixing portion 7EFR. The left rear conductive member 7BL includes an inner fixing portion 7IBL fixed to the connecting member 3, an outer fixing portion 7EBL fixed to the base member 8, and an elastic portion 7GBL connecting the inner fixing portion 7IBL and the outer fixing portion 7EBL. The right rear conductive member 7BR includes an inner fixing portion 7IBR fixed to the connecting member 3, an outer fixing portion 7EBR fixed to the base member 8, and an elastic portion 7GBR connecting the inner fixing portion 7IBR and the outer fixing portion 7EBR.

[0096] Specifically, the inner fixing portion 7IFL and the inner fixing portion 7IFR are placed on the upper end surface of the front seat portion 3DF formed in the center of the first side portion 3E1 of the connecting member 3, and are fixed to the front seat portion 3DF by an adhesive. The inner fixing portion 7IBL and the inner fixing portion 7IBR are placed on the upper end surface of the rear seat portion 3DB formed in the center of the third side portion 3E3 of the connecting member 3, and are fixed to the rear seat portion 3DB by an adhesive.

[0097] like Figure 6 as well as Figure 7 As shown, a first recess H1 for holding the first rotating body Q1 is formed on the lower end surface of the first engaging portion V1 of the connecting member 3. The first recess H1 is a recess configured to limit (maintain) the position of the first rotating body Q1, that is, to make the first rotating body Q1 slide and rotate at the position without rolling. Specifically, Figure 7 As shown, the first recess H1 includes a first left recess H1L formed on the lower surface of the first left engaging portion V1L and a first right recess H1R formed on the lower surface of the first right engaging portion V1R. The first left recess H1L is formed to receive the first left rotating body Q1L, and the first right recess H1R is formed to receive the first right rotating body Q1R.

[0098] The first recess H1 is configured so that the optical axis OA is located on a straight line connecting the center of the first left-side rotating body Q1L held in the first left-side recess H1L and the center of the first right-side rotating body Q1R held in the first right-side recess H1R. The first recess H1 is configured so that the circumferential length is shorter than the circumferential length of the first groove G1. The first recess H1 does not need to have an arc shape centered on the optical axis OA when viewed from above (or below), but may have a shape of Figure 7 Any shape such as the shape extending linearly in the tangential direction of a circle centered on the optical axis OA as shown.

[0099] like Figure 6 as well as Figure 7 As shown, a second recess H2 for holding the second rotating body Q2 is formed on the lower end surface of the second engaging portion V2 of the connecting member 3. The second recess H2 is configured to limit (maintain) the position of the second rotating body Q2, that is, to make the second rotating body Q2 slide and rotate at the position without rolling. Specifically, Figure 7 As shown, the second recess H2 includes a second front recess H2F formed on the lower surface of the second front engaging portion V2F and a second rear recess H2B formed on the lower surface of the second rear engaging portion V2B. Furthermore, the second front recess H2F is formed to receive the second front rotating body Q2F, and the second rear recess H2B is formed to receive the second rear rotating body Q2B.

[0100] The second recess H2 is configured so that the optical axis OA is located on a straight line connecting the center of the second rear rotating body Q2B held in the second rear recess H2B and the center of the second front rotating body Q2F held in the second front recess H2F. The circumferential length of the second recess H2 is configured to be shorter than the circumferential length of the second groove G2. The second recess H2 does not need to have an arc shape centered on the optical axis OA when viewed from above (or below), but may have a shape of Figure 7 Any shape such as the shape extending linearly in the tangential direction of a circle centered on the optical axis OA as shown.

[0101] like Figure 6 as well as Figure 7 As shown in FIG. 1 , a first receiving portion N1 for receiving the first magnet MG1 is formed on the upper end surface of the first engaging portion V1 of the connecting member 3. The first receiving portion N1 is a rectangular parallelepiped recess extending along the side portion 3E. Specifically, Figure 7 As shown, the first receiving portion N1 includes a first left receiving portion N1L formed on the upper surface of the first left engaging portion V1L and a first right receiving portion N1R formed on the upper surface of the first right engaging portion V1R. The first left receiving portion N1L is formed to receive the first left magnet MG1L, and the first right receiving portion N1R is formed to receive the first right magnet MG1R.

[0102] like Figure 6 as well as Figure 7 As shown in FIG. 1 , a third receiving portion N3 for receiving the third magnet MG3 is formed on the upper end surface of the second engaging portion V2 of the connecting member 3. The third receiving portion N3 is a rectangular parallelepiped recess extending along the side portion 3E. Specifically, Figure 7 As shown, the third receiving portion N3 includes a third front receiving portion N3F formed on the upper surface of the second front engaging portion V2F and a third rear receiving portion N3B formed on the upper surface of the second rear engaging portion V2B. Furthermore, the third front receiving portion N3F is formed to receive the third front magnet MG3F, and the third rear receiving portion N3B is formed to receive the third rear magnet MG3B.

[0103] like Figure 6 As shown, the connecting component 3 is configured to embed the second embedded conducting component 30. In the example shown in the figure, the second embedded conducting component 30 is a component for conducting electricity to the first shape memory alloy wire SC1, and is embedded in the connecting component 3 by insert molding. More specifically, the second embedded conducting component 30 includes four independent components (left rear side conducting component 30BL, right rear side conducting component 30BR, left front side conducting component 30FL and right front side conducting component 30FR).

[0104] exist Figure 8In the base member 8 shown, the fifth lower connection plate 5F5 is fixed to the front side of the left side surface of the second side portion 8E2 of the base member 8, the sixth lower connection plate 5F6 is fixed to the rear side of the left side surface of the second side portion 8E2 of the base member 8, the seventh lower connection plate 5F7 is fixed to the rear side of the right side surface of the fourth side portion 8E4 of the base member 8, and the eighth lower connection plate 5F8 is fixed to the front side of the right side surface of the fourth side portion 8E4 of the base member 8. The fifth lower connection plate 5F5 to the eighth lower connection plate 5F8 are fixed to the base member 8 by an adhesive.

[0105] like Figure 8 As shown, the outer fixing portion 7EFL of the left front conductive member 7FL and the outer fixing portion 7EFR of the right front conductive member 7FR are placed on the upper end surface of the front seat portion 8DF formed in the center of the first side portion 8E1 of the base member 8, and are fixed to the front seat portion 8DF by an adhesive. The outer fixing portion 7EBL of the left rear conductive member 7BL and the outer fixing portion 7EBR of the right rear conductive member 7BR are placed on the upper end surface of the rear seat portion 8DB formed in the center of the third side portion 8E3 of the base member 8, and are fixed to the rear seat portion 8DB by an adhesive.

[0106] like Figure 8 as well as Fig. 9 As shown, the outer fixing portion 9EFL of the left front conductive member 9FL is placed on the upper end surface of the left front seat portion 8DFL formed at the center of the second side portion 8E2 of the base member 8, and is fixed to the left front seat portion 8DFL by an adhesive. The outer fixing portion 9EBL of the left rear conductive member 9BL is placed on the upper end surface of the left rear seat portion 8DBL formed at the center of the second side portion 8E2 of the base member 8, and is fixed to the left rear seat portion 8DBL by an adhesive. The outer fixing portion 9EFR of the right front conductive member 9FR is placed on the upper end surface of the right front seat portion 8DFR formed at the center of the fourth side portion 8E4 of the base member 8, and is fixed to the right front seat portion 8DFR by an adhesive. The outer fixing portion 9EBR of the right rear conductive member 9BR is placed on the upper end surface of the right rear pedestal portion 8DBR formed in the center of the fourth side portion 8E4 of the base member 8 and fixed to the right rear pedestal portion 8DBR by an adhesive.

[0107] like Figure 8 as well as Fig. 9 As shown in FIG. 1 , a second groove G2 for receiving the second rotating body Q2 is formed on the upper end surface of the engaging portion 8T of the base member 8. The second groove G2 is an arc-shaped groove extending along the circumference of a circle centered on the optical axis OA. Specifically, Fig. 9As shown, the second groove G2 includes a second front groove G2F formed on the upper surface of the front engaging portion 8TF and a second rear groove G2B formed on the upper surface of the rear engaging portion 8TB. ​​The second front groove G2F is formed to receive the second front rotating body Q2F, and the second rear groove G2B is formed to receive the second rear rotating body Q2B. Fig. 9 The dotted line indicates the annular region sandwiched by two concentric circles with the optical axis OA as the center, indicating that the second front groove G2F and the second rear groove G2B are respectively a part of the annular region. In this way, the second groove G2 is configured so that the connecting member 3 and the base member 8 connected via the second rotating body Q2 can rotate relative to each other around the optical axis OA.

[0108] like Figure 8 as well as Fig. 9 As shown, a fourth receiving portion N4 for receiving the fourth magnet MG4 is formed on the lower end surface of the engaging portion 8T of the base member 8. The fourth receiving portion N4 is a rectangular parallelepiped recess extending along the side portion 8E. Specifically, Fig. 9 As shown, the fourth receiving portion N4 includes a fourth front receiving portion N4F formed on the lower surface of the front engaging portion 8TF and a fourth rear receiving portion N4B formed on the lower surface of the rear engaging portion 8TB. ​​The fourth front receiving portion N4F is formed to receive the fourth front magnet MG4F, and the fourth rear receiving portion N4B is formed to receive the fourth rear magnet MG4B.

[0109] like Figure 8 As shown, the base member 8 is configured to embed the third embedded conducting member 80. In the example shown in the figure, the third embedded conducting member 80 is a member for conducting the first shape memory alloy wire SC1 and the second shape memory alloy wire SC2, and is embedded in the base member 8 by insert molding. More specifically, the third embedded conducting member 80 includes 22 independent members (the first conducting member CB1 to the 22nd conducting member CB22).

[0110] Next, refer to Figure 10 to Figure 12 The guide mechanism GM will be described. Fig.10 is a top view of the module holding body 2, the connecting member 3 and the base member 8 which are combined with each other. Fig.11 as well as Fig.12 2 is a cross-sectional view of the module holding body 2, the connecting member 3 and the base member 8 which are combined with each other. Specifically, Fig.11 Indicates that it contains Fig.10 The cross section of the module holding body 2, the connecting member 3 and the base member 8 in the plane parallel to the YZ plane along the cutting line CTL1 shown in FIG. Fig.12 Indicates that it contains Fig.10The cross section of the module holding body 2, the connecting member 3 and the base member 8 in a plane parallel to the XZ plane along the cutting line CTL2 shown. Figure 10 to Figure 12 In the figure, for the sake of clarity, a sparse dot pattern is added to the module holder 2, a dense dot pattern is added to the connecting member 3, and an even denser dot pattern is added to the base member 8. Fig.11 as well as Fig.12 In the figure, for the sake of clarity, a dense cross pattern is added to the N-pole portion of the magnet, and a sparse cross pattern is added to the S-pole portion of the magnet.

[0111] The guide mechanism GM is a mechanism for guiding the rotation of the module holder 2 around the optical axis OA. In the example shown in the figure, the guide mechanism GM includes: a first guide mechanism GM1 for guiding the rotation of the module holder 2 relative to the connecting member 3 around the optical axis OA; and a second guide mechanism GM2 for guiding the rotation of the connecting member 3 (including the module holder 2 connected to the connecting member 3) relative to the base member 8 around the optical axis OA.

[0112] like Fig.11 As shown, the first guide mechanism GM1 is configured to include a first groove portion G1 formed on the upper end surface of the engaging portion 2T of the module holding body 2, a first recessed portion H1 formed on the lower end surface of the first engaging portion V1 of the connecting member 3, and a first rotating body Q1. Specifically, the first guide mechanism GM1 includes a first left guide mechanism GM1L and a first right guide mechanism GM1R. Furthermore, the first left guide mechanism GM1L is configured to include a first left groove portion G1L formed on the upper end surface of the left engaging portion 2TL, a first left recessed portion H1L formed on the lower end surface of the first left engaging portion V1L, and a first left rotating body Q1L. The first right guide mechanism GM1R is configured to include a first right groove portion G1R formed on the upper end surface of the right engaging portion 2TR, a first right recessed portion H1R formed on the lower end surface of the first right engaging portion V1R, and a first right rotating body Q1R.

[0113] In the first left guide mechanism GM1L, Fig.11 As shown, the upper part of the first left-side rotating body Q1L is accommodated in the first left-side recess H1L, and the lower part is accommodated in the first left-side groove G1L. In the example shown in the figure, the first left-side rotating body Q1L is arranged in the first left-side groove G1L in a manner that it can roll in the first left-side groove G1L along the circumference of a circle centered on the optical axis OA, and is arranged in the first left-side recess H1L in a manner that it can slide and rotate (not roll) in the first left-side recess H1L. Therefore, the first left-side guide mechanism GM1L can guide the rotation of the module holder 2 relative to the connecting member 3 around the first rotation axis RX1 (optical axis OA). The same is true for the first right-side guide mechanism GM1R.

[0114] The S-pole portion of the first left magnet MG1L housed in the first left housing portion N1L formed on the upper surface of the first left engaging portion V1L and the N-pole portion of the second left magnet MG2L housed in the second left housing portion N2L formed on the lower surface of the left engaging portion 2TL are arranged to face each other with the first left rotating body Q1L sandwiched therebetween. The same is true for the first right magnet MG1R and the second right magnet MG2R. Therefore, the first guide mechanism GM1 can maintain the state in which the module holding body 2 and the connecting member 3 attract each other even during the period in which the module holding body 2 rotates relative to the connecting member 3, and can suppress or prevent the module holding body 2 and the connecting member 3 from separating from each other. Therefore, the first guide mechanism GM1 can suppress or prevent the module holding body 2 from tilting erroneously relative to the connecting member 3.

[0115] like Fig.12 As shown in the figure, the second guide mechanism GM2 is composed of a second groove portion G2 formed on the upper end surface of the engaging portion 8T of the base member 8, a second recessed portion H2 formed on the lower end surface of the second engaging portion V2 of the connecting member 3, and a second rotating body Q2. Specifically, the second guide mechanism GM2 includes a second front guide mechanism GM2F and a second rear guide mechanism GM2B. Furthermore, the second front guide mechanism GM2F is composed of a second front groove portion G2F formed on the upper end surface of the front engaging portion 8TF, a second front recessed portion H2F formed on the lower end surface of the second front engaging portion V2F, and a second front rotating body Q2F, and the second rear guide mechanism GM2B is composed of a second rear groove portion G2B formed on the upper end surface of the rear engaging portion 8TB, a second rear recessed portion H2B formed on the lower end surface of the second rear engaging portion V2B, and a second rear rotating body Q2B.

[0116] In the second rear guide mechanism GM2B, as Fig.12 As shown, the upper part of the second rear rotating body Q2B is accommodated in the second rear recess H2B, and the lower part is accommodated in the second rear groove G2B. In the example shown in the figure, the second rear rotating body Q2B is arranged in the second rear groove G2B in a manner that it can roll in the second rear groove G2B along the circumference of a circle centered on the optical axis OA, and is arranged in the second rear recess H2B in a manner that it can slide and rotate (not roll) in the second rear recess H2B. Therefore, the second rear guide mechanism GM2B can guide the rotation of the connecting component 3 (including the module holding body 2) relative to the base component 8 around the first rotation axis RX1 (optical axis OA). The same is true for the second front guide mechanism GM2F.

[0117] The S-pole portion of the third rear magnet MG3B housed in the third rear housing portion N3B formed on the upper surface of the second rear engaging portion V2B and the N-pole portion of the fourth rear magnet MG4B housed in the fourth rear housing portion N4B formed on the lower surface of the rear engaging portion 8TB are arranged to face each other with the second rear rotating body Q2B interposed therebetween. The same is true for the third front magnet MG3F and the fourth front magnet MG4F. Therefore, the second guide mechanism GM2 can maintain the state in which the base member 8 and the connecting member 3 are attracted to each other even during the period in which the connecting member 3 (including the module holding body 2) rotates relative to the base member 8, and can suppress or prevent the base member 8 and the connecting member 3 from separating from each other. Therefore, the second guide mechanism GM2 can suppress or prevent the connecting member 3 (including the module holding body 2) from tilting erroneously relative to the base member 8.

[0118] Next, refer to Fig.13 as well as Fig.14 The metal member 5 to which the shape memory alloy wire SA is attached will be described. Fig.13 This is a diagram when the 7th wire SA7 respectively mounted on the 7th upper terminal block 5M7 and the 7th lower terminal block 5F7 and the 8th wire SA8 respectively mounted on the 8th upper terminal block 5M8 and the 8th lower terminal block 5F8 are viewed from the Y2 side (right side). Fig.14 This is a diagram when viewing the 7th wire SA7 mounted on the 7th upper terminal block 5M7 and the 7th lower terminal block 5F7, and the 8th wire SA8 mounted on the 8th upper terminal block 5M8 and the 8th lower terminal block 5F8, respectively, from the X1 side (front side). Fig.13 as well as Fig.14 The positional relationship of the components shown corresponds to the positional relationship when the module drive device 100 is assembled. Fig.13 as well as Fig.14 For the sake of clarity, other components are omitted. Fig.13 as well as Fig.14 The following description relates to the combination of the seventh line SA7 and the eighth line SA8, but can also be similarly applied to the combination of the first line SA1 and the second line SA2, the combination of the third line SA3 and the fourth line SA4, and the combination of the fifth line SA5 and the sixth line SA6.

[0119] Specifically, one end of the seventh wire SA7 is fixed to the seventh upper terminal block 5M7 at the holding portion J1 of the seventh upper terminal block 5M7, and the other end of the seventh wire SA7 is fixed to the seventh lower terminal block 5F7 at the holding portion J2 of the seventh lower terminal block 5F7. One end of the eighth wire SA8 is fixed to the eighth upper terminal block 5M8 at the holding portion J3 of the eighth upper terminal block 5M8, and the other end of the eighth wire SA8 is fixed to the eighth lower terminal block 5F8 at the holding portion J4 of the eighth lower terminal block 5F8.

[0120] The holding portion J1 is formed by bending a portion of the seventh upper connection plate 5M7. Specifically, the holding portion J1 is formed by bending a portion of the seventh upper connection plate 5M7 while sandwiching the end portion (one end) of the seventh wire SA7. The end portion (one end) of the seventh wire SA7 is fixed to the holding portion J1 by welding. The same is true for the holding portions J2 to J4.

[0121] When the module drive device 100 is in a neutral state, the plate-shaped portions PM of the plurality of metal members 5 are arranged parallel to each other. Fig.13 In the example shown, the plate-like portion PM1 of the 7th upper terminal plate 5M7, the plate-like portion PM2 of the 7th lower terminal plate 5F7, the plate-like portion PM3 of the 8th upper terminal plate 5M8, and the plate-like portion PM4 of the 8th lower terminal plate 5F8 are arranged to be parallel to each other along the XZ plane.

[0122] like Fig.13 As shown in FIG. 1 , the seventh line SA7 and the eighth line SA8 are arranged in a positional relationship twisted with each other (three-dimensionally intersecting when viewed from the Y2 side). That is, the seventh line SA7 and the eighth line SA8 are arranged not to contact each other (non-contact).

[0123] Specifically, when the module driving device 100 is in a neutral state, when viewed from the right side Y2, Fig.13 As shown, the seventh line SA7 is configured so that one end thereof is located at a position higher than the other end thereof, and the eighth line SA8 is configured so that one end thereof is located at a position higher than the other end thereof, and further, the seventh line SA7 and the eighth line SA8 are configured so as to intersect. In the front view observed from the X1 side, the first line SA1 is configured so that one end thereof is located at a position higher than the other end thereof, and the second line SA2 is configured so that one end thereof is located at a position higher than the other end thereof, and further, the first line SA1 and the second line SA2 are configured so as to intersect. In the rear view observed from the X2 side, the third line SA3 is configured so that one end thereof is located at a position higher than the other end thereof, and the fourth line SA4 is configured so that one end thereof is located at a position higher than the other end thereof, and further, the third line SA3 and the fourth line SA4 are configured so as to intersect. In the left view seen from the Y1 side, the fifth line SA5 is arranged with one end higher than the other end, and the sixth line SA6 is arranged with one end higher than the other end. Furthermore, the fifth line SA5 and the sixth line SA6 are arranged to intersect.

[0124] That is, in side view, the first line SA1 to the eighth line SA8 are all arranged to extend obliquely (non-parallel) relative to the X-axis and the Y-axis. However, the first line SA1 and the second line SA2 only need to be arranged to extend obliquely in the front view, and do not need to cross each other in the front view. The same is true for the relationship between the third line SA3 and the fourth line SA4, the relationship between the fifth line SA5 and the sixth line SA6, and the relationship between the seventh line SA7 and the eighth line SA8.

[0125] Next, refer to Figure 15 to Figure 19 The path of the current flowing through the shape memory alloy wire SA will be described. Fig.15 1 is a diagram showing the positional relationship between the metal component 5, the first conductive component 6, the second conductive component 7, the third conductive component 9, the first embedded conductive component 20, the second embedded conductive component 30, the third embedded conductive component 80, and the shape memory alloy wire SA. Specifically, Fig.15 It is a perspective view of the metal member 5 , the first conductive member 6 , the second conductive member 7 , the third conductive member 9 , the first embedded conductive member 20 , the second embedded conductive member 30 , the third embedded conductive member 80 , and the shape memory alloy wire SA. Figure 16 to Figure 19 yes Fig.15 A perspective view of a portion of the structure shown.

[0126] Specifically, Fig.16 shows the path of the current flowing through the first line SA1 when the first conducting member CB1 of the third embedded conducting member 80 is connected to a high potential and the eighteenth conducting member CB18 of the third embedded conducting member 80 is connected to a low potential, Fig.17 The diagram shows a path of a current flowing through the second line SA2 when the second conducting member CB2 of the third embedded conducting member 80 is connected to a high potential and the eighteenth conducting member CB18 of the third embedded conducting member 80 is connected to a low potential. Fig.18 shows the path of the current flowing through the seventh line SA7 when the eleventh conducting member CB11 of the third embedded conducting member 80 is connected to a high potential and the sixth conducting member CB6 of the third embedded conducting member 80 is connected to a low potential, Fig.19 Indicates the path of the current flowing through the eighth line SA8 when the third conducting part CB3 of the third buried conducting part 80 is connected to a high potential and the sixth conducting part CB6 of the third buried conducting part 80 is connected to a low potential. The following descriptions related to the path of the current flowing through the first line SA1 or the second line SA2 can also be applied to the path of the current flowing through the third line SA3 or the fourth line SA4. The following descriptions related to the path of the current flowing through the seventh line SA7 or the eighth line SA8 can also be applied to the path of the current flowing through the fifth line SA5 or the sixth line SA6.

[0127] When the first conducting member CB1 of the third embedded conducting member 80 is connected to a high potential and the eighteenth conducting member CB18 of the third embedded conducting member 80 is connected to a low potential, the current is as follows. Fig.16Specifically, the current flows through the first conducting component CB1, the left front conductive component 7FL, the left front conductive component 30FL, the first upper terminal block 5M1, the first wire SA1, the first lower terminal block 5F1, the front conductive component 20F and the left front conductive component 9FL to the 18th conducting component CB18.

[0128] When the second conducting member CB2 of the third embedded conducting member 80 is connected to a high potential and the eighteenth conducting member CB18 of the third embedded conducting member 80 is connected to a low potential, the current is as follows. Fig.17 Specifically, the current flows through the second conducting component CB2, the right front conductive component 7FR, the right front conductive component 30FR, the second upper terminal block 5M2, the second wire SA2, the second lower terminal block 5F2, the front conductive component 20F and the left front conductive component 9FL to the 18th conducting component CB18.

[0129] In the example shown in the figure, the path of the current flowing through the first line SA1 partially overlaps the path of the current flowing through the second line SA2. Specifically, the paths of the two currents overlap in the part passing through the front side conducting component 20F, the left front side conductive component 9FL, and the 18th conducting component CB18. This structure has the effect of reducing the number of components.

[0130] When the 11th conducting member CB11 of the third embedded conducting member 80 is connected to a high potential and the 6th conducting member CB6 of the third embedded conducting member 80 is connected to a low potential, the current is as follows. Fig.18 Specifically, the current flows to the sixth conducting member CB6 via the eleventh conducting member CB11, the seventh lower terminal plate 5F7, the seventh wire SA7, the seventh upper terminal plate 5M7, the right conducting member 6R, the right conducting member 20R and the right front conducting member 9FR.

[0131] When the third conducting member CB3 of the third embedded conducting member 80 is connected to a high potential and the sixth conducting member CB6 of the third embedded conducting member 80 is connected to a low potential, the current is as follows. Fig.19 Specifically, the current flows to the sixth conducting member CB6 via the third conducting member CB3, the eighth lower terminal plate 5F8, the eighth wire SA8, the eighth upper terminal plate 5M8, the right conducting member 6R, the right conducting member 20R and the right front conducting member 9FR.

[0132] In the example shown in the figure, the path of the current flowing through the 7th line SA7 partially overlaps with the path of the current flowing through the 8th line SA8. Specifically, the paths of the two currents overlap in the part passing through the right conductive component 6R, the right current-carrying component 20R, the right front conductive component 9FR, and the 6th current-carrying component CB6. This configuration has the effect of reducing the number of components.

[0133] In addition, Figure 15 to Figure 19 In the example, two adjacent components (metal component 5, first conductive component 6, second conductive component 7, third conductive component 9, first buried conductive component 20, second buried conductive component 30, and third buried conductive component 80) constituting the circuit of the shape memory alloy wire SA are connected to each other. This connection is achieved by welding or a conductive bonding material (conductive adhesive or soldering). For example, Fig.19 In the embodiment, the adjacent third conducting member CB3 and the eighth lower terminal plate 5F8 are bonded together by a conductive adhesive.

[0134] The control device located outside the module driving device 100 can control the expansion and contraction of each of the first wire SA1 to the eighth wire SA8 by controlling the voltage applied to the third buried conducting member 80 connected to the first lower terminal board 5F1 to the eighth lower terminal board 5F8. Alternatively, the control device can control the expansion and contraction of each of the first wire SA1 to the eighth wire SA8 by controlling the current supplied to each of the first wire SA1 to the eighth wire SA8 via the third buried conducting member 80 connected to the first lower terminal board 5F1 to the eighth lower terminal board 5F8. The control device can also be configured in the module driving device 100. The control device can also be a component of the module driving device 100.

[0135] With this configuration, the control device can rotate (turn or swing) the module holder 2 about at least one of the first rotation axis RX1, the second rotation axis RX2, and the third rotation axis RX3. By operating the module holder 2 in this manner, the control device can also realize a shake correction function.

[0136] Next, refer to Figure 20 to Figure 23 The details of the driving unit DM will be described. Fig. 20 : is a table showing the expansion and contraction state of the shape memory alloy wire SA when implementing each of the three degrees of freedom of the module holder 2. Specifically, Fig. 20 The "contraction" means that the shape memory alloy wire SA in the reference state is contracted. Fig. 20 The "elongation" means that the shape memory alloy wire SA in the reference state is elongated. The reference state refers to the state of the shape memory alloy wire SA when the module driving device 100 is in the neutral state. In the example shown in the figure, when the module driving device 100 is in the neutral state, current flows through the first wire SA1 to the eighth wire SA8, respectively, and therefore, there is no relaxation. Fig.21 It is a front view of three components (module holding body 2, connecting member 3 and base member 8) when the module holding body 2 and connecting member 3 rotate (swing) around the X-axis (second rotation axis RX2) relative to the base member 8. Fig. 22 This is a right side view of three components when the module holding body 2 rotates (oscillates) around the Y axis (third rotation axis RX3) relative to the connecting member 3. Fig.23 FIG. 2 is a top view of the module holding body 2 and the connecting member 3 when the three members are rotated (pivoted) around the Z axis (first rotation axis RX1) relative to the base member 8. Figure 21 to Figure 23 In the figure, for the sake of clarity, a sparse dot pattern is added to the module holder 2, a dense dot pattern is added to the connecting member 3, and an even denser dot pattern is added to the base member 8.

[0137] Fig.21 1 is a front view of the three components when the module holding body 2 and the connecting component 3 are swung clockwise at an angle α1 around the X axis (the second rotation axis RX2) relative to the base component 8. When the control device swings the module holding body 2 and the connecting component 3 clockwise around the X axis (the second rotation axis RX2) relative to the base component 8 in the front view, as shown in FIG. Fig. 20 As shown in the table, the 5th wire SA5 and the 6th wire SA6 are extended by approximately the same extension amount, and the 7th wire SA7 and the 8th wire SA8 are contracted by approximately the same contraction amount. In the example shown in the figure, extending the two shape memory alloy wires SA by approximately the same extension amount means extending the two shape memory alloy wires SA until the lengths of the two shape memory alloy wires SA become approximately the same specified length. Contracting the two shape memory alloy wires SA by approximately the same contraction amount means contracting the two shape memory alloy wires SA until the lengths of the two shape memory alloy wires SA become approximately the same specified length. The same also applies to the following description. The control device maintains the extension amount for the first shape memory alloy wire SC1 (the first wire SA1 to the fourth wire SA4). Specifically, the control device controls the extension amount of each of the first wire SA1 to the eighth wire SA8 as described above by individually adjusting the magnitude of the current supplied to the first wire SA1 to the eighth wire SA8, respectively. Through the control of the control device, as Fig.21 As shown, the driving unit DM can swing the module holding body 2 and the connecting member 3 clockwise around the X-axis (the second rotation axis RX2) relative to the base member 8.

[0138] When the control device rotates the module holding body 2 and the connecting member 3 counterclockwise around the X axis (the second rotation axis RX2) relative to the base member 8 in the front view, Fig. 20As shown in the table, the 5th wire SA5 and the 6th wire SA6 are contracted by approximately the same contraction amount, and the 7th wire SA7 and the 8th wire SA8 are extended by approximately the same extension amount. The control device maintains the extension amount for the 1st shape memory alloy wire SC1 (1st wire SA1 to 4th wire SA4). The control device controls the extension amount of each of the 1st wire SA1 to the 8th wire SA8 as described above by individually adjusting the magnitude of the current supplied to the 1st wire SA1 to the 8th wire SA8. Through the control of the control device, the drive unit DM can swing the module holder 2 and the connecting part 3 counterclockwise around the X-axis (the second rotation axis RX2) relative to the base part 8.

[0139] Fig. 22 2 is a right side view of the three components when the module holding body 2 is swung counterclockwise around the Y axis (third rotation axis RX3) relative to the connecting component 3 and the base component 8 by an angle α2. When the control device swings the module holding body 2 counterclockwise around the Y axis (third rotation axis RX3) relative to the connecting component 3 in the right side view, as shown in FIG. Fig. 20 As shown in the table, the first wire SA1 and the second wire SA2 are extended by approximately the same extension amount, and the third wire SA3 and the fourth wire SA4 are contracted by approximately the same contraction amount. The control device maintains the extension amount for the second shape memory alloy wire SC2 (the fifth wire SA5 to the eighth wire SA8). Specifically, the control device controls the extension amount of each of the first wire SA1 to the eighth wire SA8 as described above by individually adjusting the magnitude of the current supplied to each of the first wire SA1 to the eighth wire SA8. Through the control of the control device, as Fig. 22 As shown in FIG. 1 , the driving unit DM can swing the module holding body 2 counterclockwise around the Y-axis (third rotation axis RX3 ) relative to the connecting member 3 .

[0140] When the control device swings the module holder 2 clockwise around the Y axis (third rotation axis RX3) relative to the connecting member 3 in a right-side view, Fig. 20 As shown in the table, the first wire SA1 and the second wire SA2 are contracted by approximately the same contraction amount, and the third wire SA3 and the fourth wire SA4 are extended by approximately the same extension amount. The control device maintains the extension amount for the second shape memory alloy wire SC2 (the fifth wire SA5 to the eighth wire SA8). Specifically, the control device controls the extension amount of each of the first wire SA1 to the eighth wire SA8 as described above by individually adjusting the magnitude of the current supplied to the first wire SA1 to the eighth wire SA8. Through the control of the control device, the drive unit DM can swing the module holder 2 clockwise around the Y-axis (the third rotation axis RX3) relative to the connecting member 3.

[0141] Fig.23This is a top view of the three components when the connecting component 3 is rotated counterclockwise by an angle α3 around the Z axis (first rotation axis RX1) relative to the base component 8 and the module holder 2 is rotated by an angle α4 around the Z axis (first rotation axis RX1) relative to the connecting component 3. That is, Fig.23 It is a plan view of the three components when the module holder 2 is rotated counterclockwise by an angle α5 around the Z axis (first rotation axis RX1) relative to the base member 8. The angle α5 is the sum of the angle α3 and the angle α4.

[0142] When the control device rotates the connecting member 3 counterclockwise around the Z axis (first rotation axis RX1) relative to the base member 8 in a plan view, Fig. 20 As shown in the table, the fifth line SA5 and the seventh line SA7 are contracted by approximately the same contraction amount, and the sixth line SA6 and the eighth line SA8 are extended by approximately the same extension amount. When the control device rotates the module holder 2 counterclockwise around the Z axis (first rotation axis RX1) relative to the connecting member 3 in a plan view, as shown in the table. Fig. 20 As shown in the table, the first wire SA1 and the third wire SA3 are extended by approximately the same extension amount, and the second wire SA2 and the fourth wire SA4 are contracted by approximately the same contraction amount. Specifically, the control device controls the expansion and contraction amount of each of the first wire SA1 to the eighth wire SA8 as described above by individually adjusting the magnitude of the current supplied to each of the first wire SA1 to the eighth wire SA8. Through the control of the control device, as Fig.23 As shown, the driving unit DM can rotate the connection member 3 counterclockwise around the Z axis (first rotation axis RX1 ) relative to the base member 8 and rotate the module holder 2 counterclockwise around the Z axis (first rotation axis RX1 ) relative to the connection member 3 .

[0143] When the control device rotates the connecting member 3 clockwise around the Z axis (first rotation axis RX1) relative to the base member 8 in a plan view, as shown in FIG. Fig. 20 As shown in the table, the fifth line SA5 and the seventh line SA7 are extended by approximately the same amount, and the sixth line SA6 and the eighth line SA8 are contracted by approximately the same amount. When the control device rotates the module holder 2 clockwise around the Z axis (first rotation axis RX1) relative to the connecting member 3 in a plan view, as shown in the table. Fig. 20As shown in the table, the 1st wire SA1 and the 3rd wire SA3 are contracted by approximately the same contraction amount, and the 2nd wire SA2 and the 4th wire SA4 are extended by approximately the same extension amount. Specifically, the control device controls the extension and contraction amount of each of the 1st wire SA1 to the 8th wire SA8 as described above by individually adjusting the magnitude of the current supplied to each of the 1st wire SA1 to the 8th wire SA8. Through the control of the control device, the drive unit DM can rotate the connecting component 3 clockwise around the Z axis (the first rotation axis RX1) relative to the base component 8, and rotate the module retaining body 2 clockwise around the Z axis (the first rotation axis RX1) relative to the connecting component 3.

[0144] Fig. 20 The diagram shows the expansion and contraction state of the shape memory alloy wire SA when the connecting component 3 is rotated around the Z axis (first rotation axis RX1) relative to the base component 8 in a top view, and when the module retaining body 2 is rotated in the same direction around the Z axis (first rotation axis RX1) relative to the connecting component 3 in a top view.

[0145] However, the control device may also rotate only the connecting component 3 relative to the base component 8 around the Z axis (the first rotation axis RX1) in a plan view by maintaining the expansion and contraction amount of the first shape memory alloy wire SC1 (the first wire SA1 to the fourth wire SA4). Alternatively, the control device may rotate only the module holder 2 relative to the connecting component 3 around the Z axis (the first rotation axis RX1) in a plan view by maintaining the expansion and contraction amount of the second shape memory alloy wire SC2 (the fifth wire SA5 to the eighth wire SA8). The control device may also rotate the connecting component 3 relative to the base component 8 around the Z axis (the first rotation axis RX1) in one direction (for example, clockwise) in a plan view, and simultaneously rotate the module holder 2 relative to the connecting component 3 around the Z axis (the first rotation axis RX1) in another direction (for example, counterclockwise) in a plan view.

[0146] Next, refer to Fig.24 A configuration example of the lens driving device LD will be described. Fig.24 : is an exploded perspective view of the lens driving device LD. Fig.24 In the example shown, the lens driving device LD includes a lens holder 2x, a module-side metal component 5x, a leaf spring 6x, a module-side base component 8x, a module-side embedded current component 20x, an imaging element holder AD, an intermediate current component EC, and a module-side shape memory alloy wire SB.

[0147] The lens holder 2x is formed by injection molding a synthetic resin such as a liquid crystal polymer (LCP). Fig.24As shown in FIG. 1 , the lens holder 2x includes a cylindrical portion 12x formed to extend along the optical axis OA, and a movable side seat portion 2Dx and a protruding portion 2Sx formed to protrude radially outward from the cylindrical portion 12x. Fig.24 In the example shown, a spiral groove is formed on the inner circumference of the cylindrical portion 12x so that the upper half of the inner circumference is aligned with the lens body LS (see Figure 2 . ) are spread throughout.

[0148] The movable side seat portion 2Dx includes a first movable side seat portion 2D1x and a second movable side seat portion 2D2x. The first movable side seat portion 2D1x and the second movable side seat portion 2D2x are configured to extend in opposite directions (radially outward) across the optical axis OA. The protruding portion 2Sx includes a first protruding portion 2S1x and a second protruding portion 2S2x. The first protruding portion 2S1x and the second protruding portion 2S2x are configured to extend in opposite directions (radially outward) across the optical axis OA. Specifically, the movable side seat portion 2Dx and the protruding portion 2Sx are configured to correspond to the four corners of the lens holder 2x having a substantially rectangular frame-shaped outer shape when viewed from above, and are configured to be arranged alternately. In addition, a portion of the leaf spring 6x is respectively placed and fixed on the two movable side seats 2Dx.

[0149] The leaf spring 6x is configured to support the lens holder 2x so that it can move relative to the module-side fixing component FBx (module-side base component 8x) in a direction parallel to the optical axis OA. The leaf spring 6x is made of, for example, a conductive metal plate whose main material is copper alloy, titanium-copper alloy (titanium-copper), or copper-nickel alloy (nickel-tin-copper). Fig.24 In the illustrated example, the leaf spring 6x includes a first leaf spring 6Ax and a second leaf spring 6Bx.

[0150] The module-side base member 8x is formed by injection molding using a synthetic resin such as liquid crystal polymer (LCP). Fig.24 In the example shown, the module-side base component 8x is the same as the base component 8, and has a substantially rectangular frame-shaped outline in a plan view, with an opening 8Kx formed in the center. Specifically, the module-side base component 8x has a rectangular ring-shaped base configured to surround the circular opening 8Kx. In addition, the base has four side portions 8Ex (the first side portion 8E1x to the fourth side portion 8E4x). In the example shown in the figure, the module-side base component 8x is integrated with the module holder 2 by an adhesive or the like, and together with the module holder 2, constitutes the frame of the camera module MD.

[0151] The leaf spring 6x is configured to connect the movable side seat portion 2Dx formed on the lens holder 2x and the fixed side seat portion 8Dx formed on the module side base member 8x. The fixed side seat portion 8Dx is a portion protruding upward from the base of the module side base member 8x, and includes a first fixed side seat portion 8D1x and a second fixed side seat portion 8D2x.

[0152] More specifically, the first leaf spring 6Ax is configured to connect the first movable side seat portion 2D1x formed on the lens holder 2x to the first fixed side seat portion 8D1x and the second fixed side seat portion 8D2x formed on the module side base member 8x, respectively. The second leaf spring 6Bx is configured to connect the second movable side seat portion 2D2x formed on the lens holder 2x to the first fixed side seat portion 8D1x and the second fixed side seat portion 8D2x formed on the module side base member 8x, respectively.

[0153] The module-side base member 8x is configured to function as a fixed-side wire support portion that supports one end of each of the eight module-side shape memory alloy wires SB. The lens holder 2x is configured to function as a movable-side wire support portion that supports the other end of each of the eight module-side shape memory alloy wires SB. With this configuration, the module-side movable member MBx is supported by the eight module-side shape memory alloy wires SB in a state where it can move with six degrees of freedom relative to the module-side fixed member FBx.

[0154] The module-side base member 8x is configured by embedding a module-side embedded current-carrying member 20x formed of a conductive metal plate containing a material such as copper, iron, or an alloy thereof as a main component by insert molding.

[0155] The module-side embedded conducting member 20x is a member for conducting the third shape memory alloy wire SC3 and the fourth shape memory alloy wire SC4. In the example shown in the figure, the module-side embedded conducting member 20x includes 11 mutually independent members (first to eleventh conducting members CD11).

[0156] The imaging element holding body AD is configured to hold the imaging element IS (see Figure 2 In the example shown in the figure, the imaging element holder AD is fixed to the lower surface of the module-side base member 8x by an adhesive. In addition, a spacer SP (see FIG. 1 ) integrated with the imaging element IS is fixed to the imaging element holder AD. Figure 2 The imaging element holding body AD and the module-side base member 8x together constitute the module-side fixing member FBx. The module-side fixing member FBx may also include a spacer SP.

[0157] The intermediate conducting member EC is used to connect the module-side embedded conducting member 20x and the third embedded conducting member 80 (see Figure 8) between them. In the illustrated example, the intermediate current-carrying component EC includes 10 mutually independent components (the first intermediate current-carrying component EC1 to the tenth intermediate current-carrying component EC10). The first intermediate current-carrying component EC1 to the tenth intermediate current-carrying component EC10 are respectively connected at one end and at the other end by a connecting portion capable of elastic deformation.

[0158] The module-side metal member 5x is configured to fix the end of the module-side shape memory alloy wire SB. Fig.24 In the example shown, the module-side metal component 5x is formed of a non-magnetic metal and includes a module-side fixed metal component 5K and a module-side movable metal component 5W. The module-side fixed metal component 5K is configured to be bonded and fixed to the fixed-side seat portion 8Dx of the module-side base component 8x. The module-side movable metal component 5W is configured to be bonded and fixed to the movable-side seat portion 2Dx of the lens holder 2x.

[0159] exist Fig.24 In the example shown, the module-side fixed metal component 5K is also called a fixed-side terminal block, and includes a first fixed-side terminal block 5K1 to an eighth fixed-side terminal block 5K8. The module-side movable metal component 5W is also called a movable-side terminal block, and includes a first movable-side terminal block 5W1 to a fourth movable-side terminal block 5W4.

[0160] The first leaf spring 6Ax includes a first portion 6A1x fixed to the first fixed side seat portion 8D1x of the module side base member 8x, a second portion 6A2x fixed to the second fixed side seat portion 8D2x of the module side base member 8x, and a third portion 6A3x fixed to the first movable side seat portion 2D1x of the lens holder 2x. The first portion 6A1x is connected to the module side embedded current-carrying component 20x (eighth current-carrying component CD8) embedded in the module side base member 8x by laser welding or the like, and the third portion 6A3x is connected to the second movable side terminal plate 5W2 and the third movable side terminal plate 5W3 by soldering or the like.

[0161] The second leaf spring 6Bx includes a first portion 6B1x fixed to the first fixed side seat portion 8D1x of the module side base member 8x, a second portion 6B2x fixed to the second fixed side seat portion 8D2x of the module side base member 8x, and a third portion 6B3x fixed to the second movable side seat portion 2D2x of the lens holder 2x. The second portion 6B2x is connected to the module side embedded current carrying member 20x (third current carrying member CD3) embedded in the module side base member 8x by laser welding or the like, and the third portion 6B3x is connected to the first movable side terminal plate 5W1 and the fourth movable side terminal plate 5W4 by soldering or the like.

[0162] The module-side shape memory alloy wire SB is another example of a shape memory actuator. Similar to the shape memory alloy wire SA, when current flows through it, the temperature rises and the wire contracts according to the temperature rise. Specifically, the module-side shape memory alloy wire SB is arranged along the inner surface of the outer peripheral wall of the module holder 2, and is configured to enable the module-side movable part MBx to move relative to the module-side fixed part FBx. Fig.24 In the example shown, the module-side shape memory alloy wire SB includes the first wire SB1 to the eighth wire SB8 having substantially the same length and substantially the same diameter, and is configured to enable the lens holder 2x as the module-side movable part MBx to move relative to the module-side base part 8x as the module-side fixed part FBx and the imaging element holder AD. Fig.24 As shown, one end of each of the first wire SB1 to the eighth wire SB8 is fixed to the module-side fixed metal component 5K by crimping or welding, and the other end is fixed to the module-side movable metal component 5W by crimping or welding. In the example shown in the figure, the first wire SB1 to the fourth wire SB4 are also referred to as the third shape memory alloy wire SC3, and the fifth wire SB5 to the eighth wire SB8 are also referred to as the fourth shape memory alloy wire SC4.

[0163] Furthermore, the first fixed side connection board 5K1 to the eighth fixed side connection board 5K8 fixing one end of each of the first line SB1 to the eighth line SB8 are electrically connected to the corresponding conductive pattern formed on the external circuit substrate (not shown) via the module side embedded current-carrying component 20x embedded in the module side base component 8x, the intermediate current-carrying component EC, and the third embedded current-carrying component 80. The first movable side connection board 5W1 to the fourth movable side connection board 5W4 fixing the other end of each of the first line SB1 to the eighth line SB8 are electrically connected to the corresponding conductive pattern formed on the external circuit substrate via the leaf spring 6x (the first leaf spring 6Ax and the second leaf spring 6Bx), the module side embedded current-carrying component 20x embedded in the module side base component 8x, the intermediate current-carrying component EC, and the third embedded current-carrying component 80. Therefore, the lens driving device LD is configured to be able to receive the supply of current flowing through each of the first line SB1 to the eighth line SB8 via the external circuit substrate.

[0164] The module-side shape memory alloy wire SB constitutes the module-side driving unit DMx. The module-side driving unit DMx can move the lens holder 2x relative to the module-side base member 8x by utilizing the contraction of the module-side shape memory alloy wire SB. The module-side shape memory alloy wire SB is configured so that when one or more of the first wire SB1 to the eighth wire SB8 are contracted, the lens holder 2x moves, and through this movement, another one or more are stretched.

[0165] Specifically, when the lens driving device LD is in a neutral state, in the front view observed from the X1 side, the first wire SB1 is configured so that one end (fixed end) thereof is located at a higher position than the other end (movable end), and the second wire SB2 is configured so that one end (fixed end) thereof is located at a lower position than the other end (movable end), and further, the first wire SB1 and the second wire SB2 are configured to intersect. In addition, in the top view observed from the Z1 side, one end (fixed end) of each of the first wire SB1 and the second wire SB2 is fixed to the module-side fixed metal component 5K in a manner that is closer to the outside (X1 side) than the other end (movable end) fixed to the first movable-side terminal block 5W1.

[0166] In the rear view from the X2 side, the third line SB3 is configured so that one end (fixed end) thereof is located at a higher position than the other end (movable end), and the fourth line SB4 is configured so that one end (fixed end) thereof is located at a lower position than the other end (movable end), and further, the third line SB3 and the fourth line SB4 are configured to intersect. In addition, in the top view, one end (fixed end) of each of the third line SB3 and the fourth line SB4 is located at a position closer to the outside (X2 side) than the other end (movable end).

[0167] In the left view from the Y1 side, the fifth line SB5 is configured so that one end (fixed end) is located lower than the other end (movable end), and the sixth line SB6 is configured so that one end (fixed end) is located higher than the other end (movable end), and further, the fifth line SB5 and the sixth line SB6 are configured to intersect. In addition, in the top view, one end (fixed end) of each of the fifth line SB5 and the sixth line SB6 is located at a position closer to the outside (Y1 side) than the other end (movable end).

[0168] In the right view from the Y2 side, the 7th line SB7 is configured so that one end (fixed end) is located lower than the other end (movable end), and the 8th line SB8 is configured so that one end (fixed end) is located higher than the other end (movable end), and the 7th line SB7 and the 8th line SB8 are configured to intersect. In addition, in the top view, one end (fixed end) of each of the 7th line SB7 and the 8th line SB8 is located on the outside (Y2 side) than the other end (movable end).

[0169] That is, in a side view, the first line SB1 to the eighth line SB8 are all arranged so as to extend obliquely (not parallel) with respect to the X-axis and the Y-axis.

[0170] However, the first line SB1 and the second line SB2 only need to be arranged to extend obliquely in the front view, and do not need to cross each other in the front view. The same applies to the relationship between the third line SB3 and the fourth line SB4, the relationship between the fifth line SB5 and the sixth line SB6, and the relationship between the seventh line SB7 and the eighth line SB8.

[0171] exist Fig.24In the example shown, the module-side driving unit DMx is in principle constructed to be able to realize 6 degrees of freedom of movement of the module-side movable part MBx. The 6 degrees of freedom movement include translation in the optical axis direction, i.e., the first direction (Z-axis direction), translation in the second direction (X-axis direction) perpendicular to the first direction (Z-axis direction), translation in the third direction (Y-axis direction) perpendicular to the first direction and the second direction, respectively, rotation around the Z-axis, rotation around the X-axis, and rotation around the Y-axis. The first direction (Z-axis direction) is a direction parallel to the first rotation axis RX1 that coincides with the optical axis OA of the lens body LS, the second direction (X-axis direction) is a direction parallel to the second rotation axis RX2, and the third direction (Y-axis direction) is a direction parallel to the third rotation axis RX3. Fig.24 In the example shown, the module-side driving unit DMx is configured so as not to utilize the rotation around the Z axis, the rotation around the X axis, and the rotation around the Y axis. This is because the module holder 2 is rotated (turned) around the Z axis by the driving unit DM, thereby realizing the rotation of the camera module MD around the Z axis, and it is not necessary to rotate the lens holder 2x around the Z axis. This is because the module holder 2 is rotated (swung) around the X axis by the driving unit DM, thereby realizing the rotation of the camera module MD around the X axis, and it is not necessary to rotate the lens holder 2x around the X axis. The same is true for the rotation around the Y axis.

[0172] Next, refer to Fig.25 as well as Fig.26 The positional relationship among the module-side metal member 5x, the leaf spring 6x, the module-side embedded current-carrying member 20x, and the module-side shape-memory alloy wire SB will be described. Fig.25 as well as Fig.26 1 is a diagram showing the positional relationship between the module-side metal component 5x, the leaf spring 6x, the module-side embedded current-carrying component 20x, and the module-side shape memory alloy wire SB. Specifically, Fig.25 1 is a perspective view of a module-side metal component 5x, a leaf spring 6x, a module-side embedded current-carrying component 20x, and a module-side shape memory alloy wire SB that are combined with each other. Fig.26 It is a plan view of the module-side movable metal member 5W and the leaf spring 6x combined with each other.

[0173] like Fig.25 As shown in FIG. 1 , the first leaf spring 6Ax, which is one of the leaf springs 6x, has a first fixed side seat portion 8D1x (see FIG. 1 ) fixed to the module side base member 8x. Fig.24 ) of the first part 6A1x, and the second fixed side seat part 8D2x fixed to the module side base member 8x (refer to Fig.24 ) of the second portion 6A2x, and the first movable side seat portion 2D1x fixed to the lens holding body 2x (see Fig.24), a third portion 6A3x connecting the first portion 6A1x and the third portion 6A3x, and a fifth portion 6A5x connecting the second portion 6A2x and the third portion 6A3x. Fig.25 As shown in FIG. 1 , the second leaf spring 6Bx, which is another of the leaf springs 6x, has a first fixed side pedestal portion 8D1x (see FIG. 1 ) fixed to the module side base member 8x. Fig.24 ) of the first part 6B1x, and the second fixed side seat part 8D2x fixed to the module side base member 8x (refer to Fig.24 ) of the second part 6B2x, and the second movable side seat portion 2D2x fixed to the lens holding body 2x (refer to Fig.24 ), the third part 6B3x connecting the first part 6B1x and the third part 6B3x, and the fifth part 6B5x connecting the second part 6A2x and the third part 6A3x.

[0174] The first part 6A1x of the first leaf spring 6Ax is provided with a through hole for inserting a cylindrical protrusion formed on the first fixed side seat portion 8D1x and protruding upward, and a through hole for joining with the upper end portion of the eighth current-carrying component CD8. In the example shown in the figure, the fixing of the first part 6A1x to the first fixed side seat portion 8D1x is achieved by hot riveting or cold riveting the protrusion. However, the fixing of the first part 6Ax1 to the protrusion can also be achieved by an adhesive. In the example shown in the figure, the joining of the first part 6Ax1 to the eighth current-carrying component CD8 is achieved by welding such as laser welding. However, the joining of the first part 6Ax1 to the eighth current-carrying component CD8 can also be achieved by brazing or a conductive adhesive. The same is true for the second part 6B2x of the second leaf spring 6Bx.

[0175] The third portion 6A3x of the first leaf spring 6Ax is formed with a through hole for inserting a cylindrical protrusion formed on the first movable side seat portion 2D1x and protruding upward, and a portion for joining the second movable side terminal plate 5W2 and the third movable side terminal plate 5W3, respectively. In the example shown in the figure, the third portion 6A3x is fixed to the first movable side seat portion 2D1x by hot caulking or cold caulking the protrusion. However, the third portion 6A3x may be fixed to the first movable side seat portion 2D1x by an adhesive. In the example shown in the figure, the third portion 6A3x is joined to the second movable side terminal plate 5W2 and the third movable side terminal plate 5W3 by welding such as laser welding. However, the third portion 6A3x may be joined to the second movable side terminal plate 5W2 and the third movable side terminal plate 5W3 by brazing or a conductive adhesive, etc. The same applies to the third portion 6B3x of the second leaf spring 6Bx.

[0176] The second portion 6A2x of the first leaf spring 6Ax is provided with a through hole for inserting a cylindrical protrusion formed on the second fixed side seat portion 8D2x and protruding upward. In the example shown in the figure, the second portion 6A2x and the second fixed side seat portion 8D2x are fixed by hot caulking or cold caulking the protrusion. However, the second portion 6A2x and the second fixed side seat portion 8D2x may be fixed by an adhesive. The same is true for the first portion 6B1x of the second leaf spring 6Bx.

[0177] like Fig.26 As shown in FIG. 1 , the leaf spring 6x is configured to be twice rotationally symmetrical with respect to the first rotation axis RX1. Therefore, the leaf spring 6x hardly has an adverse effect on the weight balance of the lens holder 2x. The leaf spring 6x hardly has an adverse effect on the weight balance of the module-side movable member MBx supported by eight module-side shape memory alloy wires SB (first wire SB1 to eighth wire SB8).

[0178] like Fig.24 as well as Fig.25 As shown, the module-side fixed metal component 5K (the first fixed-side connection board 5K1 to the eighth fixed-side connection board 5K8) is configured to be electrically connected to the corresponding conductive pattern formed on the external circuit substrate (not shown) via the module-side embedded current-carrying component 20x. In the example shown in the figure, the first fixed-side connection board 5K1 is connected to the first current-carrying component CD1, the second fixed-side connection board 5K2 is connected to the second current-carrying component CD2, the third fixed-side connection board 5K3 is connected to the sixth current-carrying component CD6, the fourth fixed-side connection board 5K4 is connected to the seventh current-carrying component CD7, the fifth fixed-side connection board 5K5 is connected to the tenth current-carrying component CD10, the sixth fixed-side connection board 5K6 is connected to the ninth current-carrying component CD9, the seventh fixed-side connection board 5K7 is connected to the fifth current-carrying component CD5, and the eighth fixed-side connection board 5K8 is connected to the fourth current-carrying component CD4.

[0179] In the example shown in the figure, the module-side movable metal component 5W and the leaf spring 6x are engaged with each other. Fig.26 As shown, the first movable side connecting plate 5W1 and the fourth movable side connecting plate 5W4 are joined to the third portion 6B3x of the second leaf spring 6Bx substantially perpendicularly by laser welding or the like. The second movable side connecting plate 5W2 and the third movable side connecting plate 5W3 are joined to the third portion 6A3x of the first leaf spring 6Ax substantially perpendicularly by laser welding or the like.

[0180] On the other hand, the module-side fixing metal member 5K and the leaf spring 6x are not joined to each other. Specifically, the first fixed-side connection plate 5K1 and the second fixed-side connection plate 5K2 are arranged separately from the first portion 6B1x of the second leaf spring 6Bx, and the fifth fixed-side connection plate 5K5 and the sixth fixed-side connection plate 5K6 are arranged separately from the first portion 6A1x of the first leaf spring 6Ax. The third fixed-side connection plate 5K3 and the fourth fixed-side connection plate 5K4 are arranged separately from the second portion 6A2x of the first leaf spring 6Ax, and the seventh fixed-side connection plate 5K7 and the eighth fixed-side connection plate 5K8 are arranged separately from the second portion 6B2x of the second leaf spring 6Bx.

[0181] Next, refer to Fig. 27 as well as Fig.28 The path of the current flowing through the module-side shape memory alloy wire SB will be described. Fig. 27 as well as Fig.28 yes Fig.25 A perspective view of a portion of the structure shown.

[0182] Specifically, Fig. 27 1 is a diagram showing the path of the current flowing through the seventh line SB7 when the fifth conducting member CD5 is connected to a high potential and the third conducting member CD3 is connected to a low potential. Fig.28 The following description relates to the path of the current flowing through the seventh line SB7 or the eighth line SB8, but can also be applied to the path of the current flowing through the first line SB1 or the second line SB2, the path of the current flowing through the third line SB3 or the fourth line SB4, and the path of the current flowing through the fifth line SB5 or the sixth line SB6.

[0183] When the fifth conducting component CD5 is connected to a high potential and the third conducting component CD3 is connected to a low potential, the current is as follows Fig. 27 Specifically, the current flows through the 7th wire SB7 as shown by the arrow AR5. Specifically, the current flows to the 3rd current-carrying component CD3 through the 5th current-carrying component CD5, the 7th fixed-side terminal plate 5K7, the 7th wire SB7, the 4th movable-side terminal plate 5W4 and the 2nd leaf spring 6Bx (the 3rd part 6B3x, the 5th part 6B5x and the 2nd part 6B2x).

[0184] When the fourth conducting component CD4 is connected to a high potential and the third conducting component CD3 is connected to a low potential, the current is as follows Fig.28Specifically, the current flows through the 8th wire SB8 as shown by the arrow AR6. Specifically, the current flows to the 3rd current-carrying component CD3 through the 4th current-carrying component CD4, the 8th fixed-side terminal plate 5K8, the 8th wire SB8, the 4th movable-side terminal plate 5W4 and the 2nd leaf spring 6Bx (the 3rd part 6B3x, the 5th part 6B5x and the 2nd part 6B2x).

[0185] In the example shown in the figure, the path of the current flowing through the seventh wire SB7 partially overlaps the path of the current flowing through the eighth wire SB8. Specifically, the paths of the two currents overlap at the portion passing through the fourth movable side terminal plate 5W4, the second leaf spring 6Bx (the third portion 6B3x, the fifth portion 6B5x, and the second portion 6B2x), and the third current-carrying member CD3. This configuration has the effect of reducing the number of components.

[0186] The control device can control the expansion and contraction of each of the first wire SB1 to the eighth wire SB8 by controlling the voltages applied to each of the first fixed-side terminal board 5K1 to the eighth fixed-side terminal board 5K8. Alternatively, the control device can control the expansion and contraction of each of the first wire SB1 to the eighth wire SB8 by controlling the currents supplied to each of the first wire SB1 to the eighth wire SB8 via the first fixed-side terminal board 5K1 to the eighth fixed-side terminal board 5K8.

[0187] The control device may also move the lens holder 2x in a direction intersecting the first direction (optical axis direction) by controlling the current flowing in the plurality of module-side shape memory alloy wires SB. The direction intersecting the first direction may be, for example, a second direction (X-axis direction) perpendicular to the first direction or a third direction (Y-axis direction) perpendicular to the first direction and the second direction. The control device may also rotate the lens holder 2x around the Z-axis, around the X-axis, or around the Y-axis. The control device may also realize a shake correction function through the movement of the lens holder 2x.

[0188] Next, refer to Fig.29 The details of the module-side driver DMx will be described. Fig.29 TABLE 2 is a table showing the expansion and contraction state of the module-side shape memory alloy wire SB when each of the six degrees of freedom of the lens holder 2x is realized. Specifically, Fig.29 The “contraction” of means to contract the module-side shape memory alloy wire SB in the reference state. Fig.29 The "elongation" means that the module-side shape memory alloy wire SB in the reference state is elongated. The reference state refers to the state of the module-side shape memory alloy wire SB when the camera module MD (lens drive device LD) is in a neutral state. In the example shown in the figure, when the camera module MD (lens drive device LD) is in a neutral state, current flows through the first wire SB1 to the eighth wire SB8, respectively, and therefore, there is no relaxation.

[0189] When the control device translates the lens holder 2x relative to the module-side base member 8x in the X1 direction (forward), as shown in FIG. Fig.29 As shown in the table, the first line SB1 and the second line SB2 are contracted relatively slightly, the third line SB3 and the fourth line SB4 are extended relatively slightly, the fifth line SB5 and the sixth line SB6 are contracted relatively significantly, and the seventh line SB7 and the eighth line SB8 are extended relatively significantly. Contracting the first line SB1 and the second line SB2 relatively slightly and contracting the fifth line SB5 and the sixth line SB6 relatively significantly means that the contraction amount of the first line SB1 and the second line SB2 is smaller than the contraction amount of the fifth line SB5 and the sixth line SB6. Extending the third line SB3 and the fourth line SB4 relatively slightly and extending the seventh line SB7 and the eighth line SB8 relatively significantly means that the extension amount of the third line SB3 and the fourth line SB4 is smaller than the extension amount of the seventh line SB7 and the eighth line SB8. In the example shown in the figure, the control device causes the first line SB1 and the second line SB2 to shrink relatively slightly by approximately the same amount of shrinkage, causes the third line SB3 and the fourth line SB4 to extend relatively slightly by approximately the same amount of extension, causes the fifth line SB5 and the sixth line SB6 to shrink relatively greatly by approximately the same amount of shrinkage, and causes the seventh line SB7 and the eighth line SB8 to extend relatively greatly by approximately the same amount of extension. The same also applies to the following description. Specifically, the control device causes the first line SB1 to the eighth line SB8 to expand and contract as described above by individually adjusting the magnitude of the current supplied to the first line SB1 to the eighth line SB8, respectively. Through the control of the control device, the module-side drive unit DMx can translate the lens holder 2x in the X1 direction (forward) relative to the module-side base component 8x.

[0190] When the control device translates the lens holder 2x relative to the module-side base member 8x in the X2 direction (backward), as shown in FIG. Fig.29 As shown in the table, the first line SB1 and the second line SB2 are relatively slightly extended, the third line SB3 and the fourth line SB4 are relatively slightly contracted, the fifth line SB5 and the sixth line SB6 are relatively extended, and the seventh line SB7 and the eighth line SB8 are relatively contracted. Under the control of the control device, the module-side driving unit DMx can translate the lens holder 2x in the X2 direction (backward) relative to the module-side base member 8x.

[0191] When the control device translates the lens holder 2x relative to the module-side base member 8x in the Y1 direction (leftward), Fig.29As shown in the table, the first line SB1 and the second line SB2 are relatively contracted, the third line SB3 and the fourth line SB4 are relatively extended, the fifth line SB5 and the sixth line SB6 are relatively contracted, and the seventh line SB7 and the eighth line SB8 are relatively extended. Under the control of the control device, the module-side driving unit DMx can translate the lens holding body 2x in the Y1 direction (leftward) relative to the module-side base component 8x.

[0192] When the control device translates the lens holder 2x relative to the module-side base member 8x in the Y2 direction (rightward), Fig.29 As shown in the table, the first line SB1 and the second line SB2 are relatively extended, the third line SB3 and the fourth line SB4 are relatively contracted, the fifth line SB5 and the sixth line SB6 are relatively extended, and the seventh line SB7 and the eighth line SB8 are relatively contracted. Under the control of the control device, the module-side drive unit DMx can translate the lens holder 2x in the Y2 direction (rightward) relative to the module-side base component 8x.

[0193] When the control device translates the lens holder 2x relative to the module-side base member 8x in the Z1 direction (upward), as shown in FIG. Fig.29 As shown in the table, the second line SB2, the fourth line SB4, the fifth line SB5 and the seventh line SB7 are extended by approximately the same extension amount, and the first line SB1, the third line SB3, the sixth line SB6 and the eighth line SB8 are contracted by approximately the same contraction amount. Under the control of the control device, the module-side driving unit DMx can translate the lens holding body 2x in the Z1 direction (upward) relative to the module-side base component 8x.

[0194] When the control device translates the lens holder 2x in the Z2 direction (downward) relative to the module-side base member 8x, Fig.29 As shown in the table, the second line SB2, the fourth line SB4, the fifth line SB5 and the seventh line SB7 are contracted by approximately the same contraction amount, and the first line SB1, the third line SB3, the sixth line SB6 and the eighth line SB8 are extended by approximately the same extension amount. Under the control of the control device, the module-side driving unit DMx can translate the lens holding body 2x in the Z2 direction (downward) relative to the module-side base component 8x.

[0195] When the control device rotates the lens holder 2x clockwise around the X-axis (the second rotation axis RX2) relative to the module-side base member 8x in the front view, as shown in FIG. Fig.29As shown in the table, the third line SB3, the fourth line SB4, the sixth line SB6 and the seventh line SB7 are contracted by approximately the same contraction amount, and the first line SB1, the second line SB2, the fifth line SB5 and the eighth line SB8 are extended by approximately the same extension amount. Under the control of the control device, the module-side driving unit DMx can rotate the lens holding body 2x clockwise around the X-axis (the second rotation axis RX2) relative to the module-side base component 8x.

[0196] When the control device rotates the lens holder 2x counterclockwise about the X-axis (the second rotation axis RX2) relative to the module-side base member 8x in the front view, as shown in FIG. Fig.29 As shown in the table, the third line SB3, the fourth line SB4, the sixth line SB6 and the seventh line SB7 are extended by approximately the same extension amount, and the first line SB1, the second line SB2, the fifth line SB5 and the eighth line SB8 are contracted by approximately the same contraction amount. Under the control of the control device, the module-side driving unit DMx can rotate the lens holding body 2x counterclockwise around the X-axis (the second rotation axis RX2) relative to the module-side base component 8x.

[0197] When the control device rotates the lens holder 2x clockwise around the Y axis (third rotation axis RX3) relative to the module-side base member 8x in a right-side view, as shown in FIG. Fig.29 As shown in the table, the first line SB1, the fourth line SB4, the seventh line SB7 and the eighth line SB8 are contracted by approximately the same contraction amount, and the second line SB2, the third line SB3, the fifth line SB5 and the sixth line SB6 are extended by approximately the same extension amount. Under the control of the control device, the module-side driving unit DMx can rotate the lens holding body 2x clockwise around the Y axis (third rotation axis RX3) relative to the module-side base component 8x.

[0198] When the control device rotates the lens holder 2x counterclockwise around the Y axis (third rotation axis RX3) relative to the module-side base member 8x in a right-side view, as shown in FIG. Fig.29 As shown in the table, the first line SB1, the fourth line SB4, the seventh line SB7 and the eighth line SB8 are extended by approximately the same extension amount, and the second line SB2, the third line SB3, the fifth line SB5 and the sixth line SB6 are contracted by approximately the same contraction amount. Under the control of the control device, the module-side driving unit DMx can rotate the lens holding body 2x counterclockwise around the Y axis (third rotation axis RX3) relative to the module-side base component 8x.

[0199] When the control device rotates the lens holder 2x clockwise around the Z axis (first rotation axis RX1) relative to the module-side base member 8x in a plan view, as shown in FIG. Fig.29As shown in the table, the first line SB1 to the fourth line SB4 are contracted by approximately the same contraction amount, and the fifth line SB5 to the eighth line SB8 are extended by approximately the same extension amount. Through the control of the control device, the module-side drive unit DMx can rotate the lens holder 2x clockwise around the Z axis (the first rotation axis RX1) relative to the module-side base component 8x.

[0200] When the control device rotates the lens holder 2x counterclockwise about the Z axis (first rotation axis RX1) relative to the module-side base member 8x in a plan view, as shown in FIG. Fig.29 As shown in the table, the first line SB1 to the fourth line SB4 are extended by approximately the same extension amount, and the fifth line SB5 to the eighth line SB8 are contracted by approximately the same contraction amount. Through the control of the control device, the module-side drive unit DMx can rotate the lens holder 2x counterclockwise around the Z axis (the first rotation axis RX1) relative to the module-side base component 8x.

[0201] Next, refer to Fig.30 , the positional relationship between the module-side embedded current-carrying component 20x embedded in the module-side fixing component FBx (module-side base component 8x), the third embedded current-carrying component 80 embedded in the fixing-side component FB (base component 8), and the intermediate current-carrying component EC used for conducting electricity between the module-side embedded current-carrying component 20x and the third embedded current-carrying component 80 is described. Fig.30 2 is a perspective view of the module-side embedded conducting member 20x, the third embedded conducting member 80, and the intermediate conducting member EC. Fig.30 In the figure, for the sake of clarity, the current-carrying components in the third embedded current-carrying component 80 that are not connected to the module-side embedded current-carrying component 20x (the first current-carrying component CB1 to the third current-carrying component CB3, the sixth current-carrying component CB6, the seventh current-carrying component CB7, the eleventh current-carrying component CB11 to the fourteenth current-carrying component CB14, the seventeenth current-carrying component CB17, the eighteenth current-carrying component CB18 and the twenty-second current-carrying component CB22) are omitted from the illustration.

[0202] In the example shown in the figure, ten conducting members (first to tenth conducting members CD10 ) constituting the module-side embedded conducting member 20 x are connected to the third embedded conducting member 80 via the intermediate conducting member EC.

[0203] Specifically, the first current-carrying component CD1 is connected to the fourth current-carrying component CB4 via the first intermediate current-carrying component EC1, the second current-carrying component CD2 is connected to the fifth current-carrying component CB5 via the second intermediate current-carrying component EC2, the third current-carrying component CD3 is connected to the ninth current-carrying component CB9 via the fourth intermediate current-carrying component EC4, the fourth current-carrying component CD4 is connected to the tenth current-carrying component CB10 via the fifth intermediate current-carrying component EC5, and the fifth current-carrying component CD5 is connected to the eighth current-carrying component CB8 via the third intermediate current-carrying component EC3. The 6th current-carrying component CD6 is connected to the 15th current-carrying component CB15 via the 6th intermediate current-carrying component EC6, the 7th current-carrying component CD7 is connected to the 16th current-carrying component CB16 via the 7th intermediate current-carrying component EC7, the 8th current-carrying component CD8 is connected to the 20th current-carrying component CB20 via the 9th intermediate current-carrying component EC9, the 9th current-carrying component CD9 is connected to the 21st current-carrying component CB21 via the 10th intermediate current-carrying component EC10, and the 10th current-carrying component CD10 is connected to the 19th current-carrying component CB19 via the 8th intermediate current-carrying component EC8.

[0204] With this configuration, the first line SB1 to the eighth line SB8 can be electrically connected to the corresponding conductive patterns formed on the external circuit substrate via the module-side embedded conductive component 20x, the intermediate conductive component EC, and the third embedded conductive component 80. Therefore, the lens driving device LD can receive the supply of current flowing through the first line SB1 to the eighth line SB8 via the external circuit substrate.

[0205] Through the above-mentioned structure, the control device can realize the 6 degrees of freedom of the lens holder 2x. Specifically, the control device can realize each action of the 6 degrees of freedom by individually adjusting the current supplied to the 1st wire SB1 to the 8th wire SB8. The control device can also realize the action of the lens holder 2x by combining multiple actions of the 6 degrees of freedom. In the example shown in the figure, the control device causes the corresponding module-side shape memory alloy wire SB to contract by passing current through one or more of the 1st wire SB1 to the 8th wire SB8, thereby moving the lens holder 2x. In addition, the control device stretches another one or more of the 1st wire SB1 to the 8th wire SB8 through this movement, thereby realizing the elongation of the module-side shape memory alloy wire SB.

[0206] In the example shown in the figure, the module holder 2 can realize the movement of 3 degrees of freedom (rotation around the X-axis, rotation around the Y-axis, and rotation around the Z-axis). Therefore, if the lens body LS can be translated along the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively, the lens body LS in the camera module MD held by the module holder 2 can realize the movement of 6 degrees of freedom. That is, the combination of the driving unit DM in the module driving device 100 and the module-side driving unit DMx in the camera module MD can realize the movement of the lens body LS in 6 degrees of freedom. Therefore, the module-side driving unit DMx can also be configured not to use the movement of 3 degrees of freedom (rotation around the X-axis, rotation around the Y-axis, and rotation around the Z-axis).

[0207] The movement of the movable side part MB may also be detected by a movement detection unit not shown in the figure. The movement detection unit may also be composed of, for example, a magnet of the movable side part MB mounted on the module holding body 2 or the like, and a magnetic sensor of the fixed side part FB mounted on the base part 8 or the like. The movement of the module side movable part MBx may also be detected by a module side movement detection unit not shown in the figure. The module side movement detection unit may also be composed of, for example, a magnet of the module side movable part MBx mounted on the lens holding body 2x or the like, and a magnetic sensor of the module side fixed part FBx mounted on the module side base part 8x or the like.

[0208] The magnetic sensor may also be configured to detect the position of the movable side part MB (the module side movable part MBx) by detecting the position of the magnet. The magnetic sensor may also be configured to detect the position of the movable side part MB (the module side movable part MBx) by using a Hall element. However, the magnetic sensor may also be configured to detect the position of the movable side part MB (the module side movable part MBx) by using a magnetoresistive element such as a giant magnetoresistive effect (GMR) element that can detect the magnetic field generated by a magnet, a semiconductor magnetoresistive (SMR) element, an anisotropic magnetoresistive (AMR) element, or a tunnel magnetoresistive (TMR) element.

[0209] As described above, the module driving device 100 of the embodiment of the present disclosure comprises: a module holding body 2 capable of holding a camera module MD as an optical module having a lens body LS and a shooting element IS; a connecting component 3 connected to the module holding body 2 in such a manner that the module holding body 2 can swing around a first axis (the axis of the third rotation axis RX3) intersecting the optical axis direction; a fixed side component FB (base component 8) connected to the connecting component 3 in such a manner that the connecting component 3 can swing around a second axis (the axis of the second rotation axis RX2) perpendicular to the axial direction of the first axis; and a driving unit DM for moving the module holding body 2 relative to the fixed side component FB.

[0210] Alternatively, at least one of the module holding body 2 and the connecting member 3 and the connecting member 3 and the fixed side member FB may be connected via two first rotating bodies (first rotating body Q1 or second rotating body Q2) disposed opposite to each other across the optical axis OA. In this case, the two corresponding members connected via the two first rotating bodies may also be configured to be rotatable relative to each other around the optical axis OA.

[0211] exist Figure 3 In the example shown, the module holder 2 and the connecting member 3 are connected via two first rotating bodies Q1 (first left rotating body Q1L and first right rotating body Q1R) arranged opposite to each other across the optical axis OA. Furthermore, the module holder 2 and the connecting member 3 connected via the two first rotating bodies Q1 are configured to be able to rotate relative to each other around the optical axis OA.

[0212] This configuration enables swinging and rotating motion of one of the two members connected via the first rotating body Q1, and can suppress the complexity of the structure. That is, this configuration can achieve a relatively simple structure compared to a structure that separately includes a rotation support mechanism and a universal joint mechanism.

[0213] A first groove G1 having an arc shape centered on the optical axis OA may be formed in at least one of the module holding body 2 and the connecting member 3 that are opposed to each other across the two first rotating bodies Q1. Figure 5 As shown in the figure, the module holder 2 disposed on the lower side of the first rotating body Q1 is formed with the first arc-shaped groove G1 (the first left groove G1L and the first right groove G1R) centered on the optical axis OA. However, the first groove G1 may be formed in the connecting member 3 disposed on the upper side of the first rotating body Q1, or may be formed in the module holder 2 and the connecting member 3 respectively. This configuration has the effect of enabling the module holder 2 to swing around the third rotating axis RX3 and rotate around the optical axis relative to the connecting member 3 with a simple structure.

[0214] Alternatively, the connecting member 3 and the fixed side member FB (base member 8) are connected via two second rotating bodies Q2 disposed opposite to each other across the optical axis OA, and a second arc-shaped groove G2 centered on the optical axis OA is formed in at least one of the connecting member 3 and the fixed side member FB (base member 8) disposed opposite to each other across the two second rotating bodies Q2. Fig. 9 As shown, the second groove G2 (the second front groove G2F and the second rear groove G2B) having an arc shape centered on the optical axis OA is formed on the base member 8 disposed on the lower side of the second rotating body Q2. However, the second groove G2 may be formed on the connecting member 3 disposed on the upper side of the second rotating body Q2, or may be formed on the connecting member 3 and the base member 8 separately.

[0215] This structure has the effect of enabling the swing of the connecting member 3 around the second rotation axis RX2 and the rotation around the optical axis relative to the base member 8 through a simple structure. In addition, this structure has the effect of increasing the size (rotation amount or rotation angle) of the rotation of the module holding body 2 around the optical axis relative to the base member 8 by using it in combination with the structure in which the module holding body 2 and the connecting member 3 are arranged to face each other with two first rotating bodies Q1 in between.

[0216] The first recessed portion H1 for holding the first rotating body Q1 and the second recessed portion H2 for holding the second rotating body Q2 may be provided in the connecting member 3. This configuration has an effect of being able to simplify the structure of the guide mechanism GM.

[0217] The first recess H1 and the second recess H2 may be provided on the lower surface side (the same surface side) of the connection member 3. This configuration facilitates the assembly of the connection member 3 to the module holder 2 and the base member 8, thereby improving the ease of assembly of the module drive device 100.

[0218] When the side where the lens body LS is arranged is set as the upper side and the side where the imaging element IS is arranged is set as the lower side, the connecting member 3 may have a portion arranged on the upper side of the fixed side member FB (base member 8). In this case, the module holding body 2 may have a portion arranged on the lower side of the connecting member 3. The first rotating body Q1 and the second rotating body Q2 may also be arranged on the lower side of the connecting member 3.

[0219] In the example shown in the figure, Figure 7 As shown, on the lower side (Z2 side) of the connecting part 3, there are provided the first recess H1 (the first left side recess H1L and the first right side recess H1R) for holding the first rotating body Q1 (the first left side rotating body Q1L and the first right side rotating body Q1R), and the second recess H2 (the second front side recess H2F and the second rear side recess H2B) for holding the second rotating body Q2 (the second front side rotating body Q2F and the second rear side rotating body Q2B).

[0220] This structure can make the position (height) of the first rotating body Q1 and the position (height) of the second rotating body Q2 in the Z-axis direction the same or close to each other, and can improve the space efficiency in the module driving device 100. Therefore, this structure has the effect of reducing the length (height) of the module driving device 100 in the Z-axis direction.

[0221] The first magnet MG1 and the second magnet MG2 arranged to attract each other via the first rotating body Q1 may be provided on the connecting member 3 and the module holder 2. The third magnet MG3 and the fourth magnet MG4 arranged to attract each other via the second rotating body Q2 may be provided on the connecting member 3 and the fixed side member FB (base member 8).

[0222] In the example shown in the figure, the module holder 2 is as follows Figure 4 As shown in FIG. 1 , the second magnet MG2 is provided in the connection member 3 as shown in FIG. Figure 6 As shown in FIG. 1 , the first magnet MG1 and the third magnet MG3 are provided on the base member 8 as shown in FIG. Figure 8 The fourth magnet MG4 is provided as shown. This structure can prevent the module holder 2, the connecting member 3 and the base member 8 from being separated from each other. Therefore, this structure can stabilize the swinging movement and the rotational movement of the module holder 2 relative to the connecting member 3, and can stabilize the swinging movement and the rotational movement of the connecting member 3 relative to the base member 8.

[0223] The first rotating body Q1 and the second rotating body Q2 may also be made of a magnetic material (metal). Compared with the case where the first rotating body Q1 and the second rotating body Q2 are made of a non-magnetic material, this structure can increase the force of attraction between the module holding body 2 and the connecting member 3 and the force of attraction between the connecting member 3 and the base member 8. This is because the first rotating body Q1 can attract the first magnet MG1 and the second magnet MG2, and the second rotating body Q2 can attract the third magnet MG3 and the fourth magnet MG4. Therefore, this structure has the effect of suppressing the separation of the module holding body 2, the connecting member 3 and the base member 8 when the module driving device 100 is subjected to an impact caused by falling or the like.

[0224] The first magnet (first magnet MG1) may include a first one side magnet (first left side magnet MG1L) and a first other side magnet (first right side magnet MG1R). Similarly, the second magnet (second magnet MG2) may include a second one side magnet (second left side magnet MG2L) and a second other side magnet (second right side magnet MG2R), the third magnet (third magnet MG3) may include a third one side magnet (third front side magnet MG3F) and a third other side magnet (third rear side magnet MG3B), and the fourth magnet (fourth magnet MG4) may include a fourth one side magnet (fourth front side magnet MG4F) and a fourth other side magnet (fourth rear side magnet MG4B). In this case, the attraction force between the first side magnet (first left magnet MG1L) and the second side magnet (second left magnet MG2L) arranged across one of the two rotating bodies (first rotating body Q1) (first left rotating body Q1L), and the attraction force between the first other side magnet (first right magnet MG1R) and the second other side magnet (second right magnet MG2R) arranged across the other of the two rotating bodies (first rotating body Q1) (first right rotating body Q1R) may also be different. In addition, the attraction force between the third side magnet (3rd front side magnet MG3F) and the fourth side magnet (4th front side magnet MG4F) arranged across one of the two rotating bodies (2nd rotating body Q2) (2nd front rotating body Q2F), and the attraction force between the third other side magnet (3rd rear side magnet MG3B) and the fourth other side magnet (4th rear side magnet MG4B) arranged across the other of the two rotating bodies (2nd rotating body Q2) (2nd rear rotating body Q2B) may also be different.

[0225] Specifically, the magnitude of the force of attraction between the module holding body 2 and the connecting member 3 may be different on one side (left side) and the other side (right side). More specifically, the module driving device 100 may be configured such that the magnetic force of the first left magnet MG1L is different from the magnetic force of the first right magnet MG1R, or such that the magnetic force of the second left magnet MG2L is different from the magnetic force of the second right magnet MG2R. Alternatively, the module driving device 100 may be configured such that the distance from the first left magnet MG1L to the first left rotating body Q1L is different from the distance from the first right magnet MG1R to the first right rotating body Q1R, or such that the distance from the second left magnet MG2L to the first left rotating body Q1L is different from the distance from the second right magnet MG2R to the first right rotating body Q1R.

[0226] With this structure, the module driving device 100 has the following effect: it is possible to mitigate the impact when, for example, the connecting component 3 is separated from the module holding body 2 and collides with the cover component 4 due to falling or the like. This is because the structure can suppress the simultaneous separation of one side (left side) and the other side (right side) of the connecting component 3, and can suppress the maximum value of the moving speed of the connecting component 3 separated from the module holding body 2. Specifically, the structure can prolong the time required for the connecting component 3 to collide with the cover component 4, that is, the collision time, by making the side with weaker attraction force separate earlier than the side with stronger attraction force. In addition, by prolonging the collision time between the connecting component 3 and the cover component 4, the impact when the connecting component 3 collides with the cover component 4 can be dispersed.

[0227] Similarly, the magnitude of the force of attraction between the connecting member 3 and the base member 8 may be different on one side (front side) and the other side (rear side). Specifically, the module drive device 100 may be configured such that the magnetic force of the third front magnet MG3F is different from the magnetic force of the third rear magnet MG3B, or such that the magnetic force of the fourth front magnet MG4F is different from the magnetic force of the fourth rear magnet MG4B. Alternatively, the module drive device 100 may be configured such that the distance from the third front magnet MG3F to the second front rotating body Q2F is different from the distance from the third rear magnet MG3B to the second rear rotating body Q2B, or such that the distance from the fourth front magnet MG4F to the second front rotating body Q2F is different from the distance from the fourth rear magnet MG4B to the second rear rotating body Q2B.

[0228] Through this structure, the module driving device 100 has the following effect: it can alleviate the impact when the connecting part 3 is separated from the base part 8 and collides with the cover part 4 due to falling, etc. This is because this structure can suppress the simultaneous separation of one side (front side) and the other side (rear side) of the connecting part 3, and can suppress the maximum value of the moving speed of the connecting part 3 separated from the base part 8. Specifically, this structure can prolong the time required for the connecting part 3 to collide with the cover part 4, that is, the collision time, by making the side with weak attraction force separate earlier than the side with strong attraction force. In addition, by prolonging the collision time between the connecting part 3 and the cover part 4, the impact when the connecting part 3 collides with the cover part 4 can be dispersed.

[0229] The driving part DM may also be configured to include a plurality of shape memory alloy wires SA, which are provided between a movable side part MB and a fixed side part FB (base part 8) including a module holder 2 and a connecting part 3. This configuration has the effect of miniaturizing the module driving device 100 compared to the case where the driving part is configured using magnets and coils.

[0230] The driving part DM may also include a plurality of first shape memory alloy wires SC1, which are arranged between the first movable part MB1 including the module holder 2 and the second movable part MB2 including the connecting part 3. The plurality of shape memory alloy wires SA arranged between the movable side part MB and the fixed side part FB (base part 8) may also be composed of a plurality of second shape memory alloy wires SC2 arranged between the second movable part MB2 and the fixed side part FB (base part 8). In the example shown in the figure, the plurality of first shape memory alloy wires SC1 are the first wire SA1 to the fourth wire SA4, and the plurality of second shape memory alloy wires SC2 are the fifth wire SA5 to the eighth wire SA8. This configuration has the effect of facilitating the control of the movement of the connecting part 3 relative to the base part 8 and the control of the movement of the module holder 2 relative to the connecting part 3. This is because the shape memory alloy wire SA used to realize the movement of the connecting part 3 relative to the base part 8 can be separated from the shape memory alloy wire SA used to realize the movement of the module holder 2 relative to the connecting part 3.

[0231] Two first shape memory alloy wires SC1 may be respectively arranged at two positions separated in the axial direction (X-axis direction) of the second axis (axis of the second rotation axis RX2) across the module holder 2, and the two first shape memory alloy wires SC1 may cross each other when viewed along the axial direction of the second axis. Two second shape memory alloy wires SC2 may also be respectively arranged at two positions separated in the axial direction (Y-axis direction) of the first axis (axis of the third rotation axis RX3) across the module holder 2, and the two second shape memory alloy wires SC2 may cross each other when viewed along the axial direction of the first axis.

[0232] exist Figure 3 In the example shown, the two first shape memory alloy wires SC1 located on the front side (X1 side) of the module holder 2, namely the first wire SA1 and the second wire SA2, intersect each other when viewed along the X-axis direction, and the two first shape memory alloy wires SC1 located on the rear side (X2 side) of the module holder 2, namely the third wire SA3 and the fourth wire SA4, intersect each other when viewed along the X-axis direction. The two second shape memory alloy wires SC2 located on the left side (Y1 side) of the module holder 2, namely the fifth wire SA5 and the sixth wire SA6, intersect each other when viewed along the Y-axis direction, and the two second shape memory alloy wires SC2 located on the right side (Y2 side) of the module holder 2, namely the seventh wire SA7 and the eighth wire SA8, intersect each other when viewed along the Y-axis direction.

[0233] This structure has the effect of making it easier to control the movement of the connecting member 3 relative to the base member 8 and the movement of the module holder 2 relative to the connecting member 3. In addition, this is because, in this structure, the swinging movement and the rotational movement of the module holder 2 relative to the connecting member 3 are realized by the common shape memory alloy wire SA (first shape memory alloy wire SC1). This is because, in this structure, the swinging movement and the rotational movement of the connecting member 3 relative to the base member 8 are realized by the common shape memory alloy wire SA (second shape memory alloy wire SC2).

[0234] The camera module MD as an example of an optical module may also have a module side fixing component FBx (module side base component 8x), a lens holder 2x that holds the lens body LS, and a module side driving unit DMx that moves the lens holder 2x relative to the module side fixing component FBx (module side base component 8x).

[0235] In this case, the module-side driving unit DMx may be configured to include a plurality of module-side shape memory alloy wires SB provided between the module-side movable component MBx including the lens holder 2x and the module-side fixed component FBx (module-side base component 8x).

[0236] The multiple module-side shape memory alloy wires SB may also have: two third shape memory alloy wires SC3, which are respectively arranged at two positions separated in the axial direction (X-axis direction) of the second axis (the axis of the second rotation axis RX2) across the lens holding body 2x; and two fourth shape memory alloy wires SC4, which are respectively arranged at two positions separated in the axial direction (Y-axis direction) of the first axis (the axis of the third rotation axis RX3) across the lens holding body 2x.

[0237] The two third shape memory alloy wires SC3 may intersect each other when viewed along the axial direction of the second axis (X-axis direction), and the two fourth shape memory alloy wires SC4 may intersect each other when viewed along the axial direction of the first axis (Y-axis direction).

[0238] exist Fig.24In the example shown, the two third shape memory alloy wires SC3 located on the front side (X1 side) of the lens holder 2x, namely, the first wire SB1 and the second wire SB2, intersect each other when viewed along the X-axis direction, and the two third shape memory alloy wires SC3 located on the rear side (X2 side) of the lens holder 2x, namely, the third wire SB3 and the fourth wire SB4, intersect each other when viewed along the X-axis direction. The two fourth shape memory alloy wires SC4 located on the left side (Y1 side) of the lens holder 2x, namely, the fifth wire SB5 and the sixth wire SB6, intersect each other when viewed along the Y-axis direction, and the two fourth shape memory alloy wires SC4 located on the right side (Y2 side) of the lens holder 2x, namely, the seventh wire SB7 and the eighth wire SB8, intersect each other when viewed along the Y-axis direction.

[0239] This configuration has an effect of being able to reduce the size of the camera module MD and, in turn, the size of the module driving device 100 , compared to a case where the module-side driving unit DMx is configured using a magnet and a coil.

[0240] like Figure 3 As shown, the module driving device 100 of the embodiment of the present disclosure comprises: a module holding body 2, capable of holding a camera module MD as an optical module having a lens body LS and a shooting element IS; a connecting part 3, connected to the module holding body 2 in such a manner that the module holding body 2 can swing around a first axis (the axis of the third rotation axis RX3) intersecting the optical axis direction; a fixed side part FB (base part 8), connected to the connecting part 3 in such a manner that the connecting part 3 can swing around a second axis (the axis of the second rotation axis RX2) perpendicular to the axial direction of the first axis; and a driving part DM, which moves the module holding body 2 relative to the fixed side part FB.

[0241] Alternatively, at least one of the module holder 2 and the connecting member 3 and the connecting member 3 and the fixed side member FB (base member 8) may be connected via two rotatable rotating bodies (the first rotating body Q1 or the second rotating body Q2) arranged opposite to each other across the optical axis OA. In addition, the two rotating bodies may also be made of magnetic material. In addition, the first magnet (the first magnet MG1 or the third magnet MG3) and the second magnet (the second magnet MG2 or the fourth magnet MG4) may be respectively provided in two corresponding members connected via the rotating body so as to attract each other across the rotating body.

[0242] This configuration can utilize magnetic force to assemble the modular drive device 100 (connect two components), thereby suppressing the complexity of the structure of the modular drive device 100. In addition, for the same reason, this configuration can improve the productivity of the modular drive device 100.

[0243] Alternatively, the first magnet (the first magnet MG1 or the third magnet MG3) may include a first side magnet (the first left side magnet MG1L or the third front side magnet MG3F) and a first other side magnet (the first right side magnet MG1R or the third rear side magnet MG3B). Alternatively, the second magnet (the second magnet MG2 or the fourth magnet MG4) may include a second side magnet (the second left side magnet MG2L or the fourth front side magnet MG4F) and a second other side magnet (the second right side magnet MG2R or the fourth rear side magnet MG4B). In this case, it can also be configured that the attraction force between the first side magnet (the first left side magnet MG1L or the third front side magnet MG3F) and the second side magnet (the second left side magnet MG2L or the fourth front side magnet MG4F) arranged across one of the two rotating bodies (the first left side rotating body Q1L or the second front side rotating body Q2F) and the attraction force between the first other side magnet (the first right side magnet MG1R or the third rear side magnet MG3B) and the second other side magnet (the second right side magnet MG2R or the fourth rear side magnet MG4B) arranged across the other of the two rotating bodies (the first right side rotating body Q1R or the second rear side rotating body Q2B) are different from each other.

[0244] This structure has the following effect: it is possible to suppress the impact caused by the collision between the movable side part MB and the fixed side part FB in the frame HS due to the impact caused by falling or the like. Specifically, when the impact caused by falling or the like is applied to the module driving device 100, the two parts connected via the rotating body move relatively and separate from each other, but since the attraction force of the connection part on one side is different from the attraction force of the connection part on the other side, there is a high possibility that the timing of the connection on one side being released is different from the timing of the connection on the other side being released. Therefore, compared with the case where the attraction force of the connection part on one side is the same as the attraction force of the connection part on the other side, this structure has the following effect: it is possible to extend the time required for both the connection on one side and the connection on the other side to be released, and as a result, the collision time when the moving part in the frame HS collides with other parts is also prolonged, and the impact caused by the collision can be suppressed.

[0245] In the example shown in the figure, the module holder 2 and the connecting member 3 are connected via two rotatable first rotating bodies Q1 arranged opposite to each other across the optical axis OA. In addition, the connecting member 3 and the fixed side member FB (base member 8) are connected via two rotatable second rotating bodies Q2 arranged opposite to each other across the optical axis OA. In addition, both the first rotating body Q1 and the second rotating body Q2 are made of magnetic materials. In addition, the connecting member 3 and the fixed side member FB (base member 8) are respectively provided with a third magnet MG3 and a fourth magnet MG4 arranged to attract each other across the second rotating body Q2.

[0246] This configuration can utilize magnetic force to assemble the modular drive device 100 (connect two components), thereby suppressing the complexity of the structure of the modular drive device 100. In addition, for the same reason, this configuration can improve the productivity of the modular drive device 100.

[0247] The third magnet MG3 may include a third one side magnet (third front side magnet MG3F) and a third other side magnet (third rear side magnet MG3B), and the fourth magnet MG4 may include a fourth one side magnet (fourth front side magnet MG4F) and a fourth other side magnet (fourth rear side magnet MG4B). In this case, the attraction between the third one side magnet (third front side magnet MG3F) and the fourth one side magnet (fourth front side magnet MG4F) disposed across one of the two second rotating bodies Q2 (second front rotating body Q2F) and the attraction between the third other side magnet (third rear side magnet MG3B) and the fourth other side magnet (fourth rear side magnet MG4B) disposed across the other of the two second rotating bodies Q2 (second rear rotating body Q2B) may be different from each other.

[0248] This structure has the following effect: it is possible to suppress the impact caused by the collision between the movable side part MB (connection part 3) and the fixed side part FB (cover part 4) in the frame HS due to the impact caused by falling or the like. Specifically, when the impact caused by falling or the like is applied to the module driving device 100, the two parts (connection part 3 and base part 8) connected via the second rotating body Q2 move relatively and separate from each other, but since the attraction force of the connection part on one side (front side) is different from the attraction force of the connection part on the other side (rear side), it is highly likely that the timing of the connection on one side being released is different from the timing of the connection on the other side being released. Therefore, compared with the case where the attraction force of the connection part on one side is the same as the attraction force of the connection part on the other side, this structure has the following effect: it is possible to extend the time required for both the connection on one side and the connection on the other side to be released, and as a result, the collision time when the connection part 3 moving in the frame HS collides with the cover part 4 is also prolonged, and the impact caused by the collision can be suppressed.

[0249] The optical device of the embodiment of the present disclosure may also include: a lens holder 2x, which can hold the lens body LS; a shooting element holder AD, which is arranged to be non-movable relative to the shooting element IS arranged opposite to the lens body LS; a module-side driving unit DMx, which moves the lens holder 2x relative to the module-side fixing component FBx including the shooting element holder AD; a module holder 2, which holds the module-side fixing component FBx; a connecting component 3, which is connected to the module holder 2 in a manner that the module holder 2 can swing around a first axis (the axis of the third rotation axis RX3) intersecting the optical axis direction; a fixed side component FB (base component 8), which is connected to the connecting component 3 in a manner that the connecting component 3 can swing around a second axis (the axis of the second rotation axis RX2) perpendicular to the axial direction of the first axis (Y-axis direction); and a driving unit DM, which moves the module holder 2 relative to the fixed side component FB (base component 8).

[0250] Furthermore, it can also be constructed so that at least one of the module retaining body 2 and the connecting part 3 and the connecting part 3 and the fixed side part FB (base part 8) is connected via two first rotating bodies (first rotating body Q1 or second rotating body Q2) arranged opposite to each other across the optical axis OA, and the two corresponding parts connected via the first rotating body can rotate relative to each other around the optical axis OA.

[0251] The module driving device 100 of the embodiment of the present disclosure may also include: a fixed side component FB (base component 8); a module holder 2 that can hold an optical module (camera module MD) having a lens body LS and an imaging element IS and can move relative to the fixed side component FB (base component 8); a guide mechanism GM that guides the rotation of the module holder 2 around the optical axis OA of the lens body LS; a driving unit DM that rotates the module holder 2 around the optical axis OA; and a connecting component 3. In addition, the driving unit DM may also be configured to include a plurality of shape memory alloy wires SA, which are provided between the movable side component MB including the module holder 2 and the fixed side component FB (base component 8). The connecting component 3 may also be connected to the module holder 2 through a plurality of first engaging portions V1, and connected to the fixed side component FB (base component 8) through a plurality of second engaging portions V2. The guide mechanism GM may be provided so that the module holder 2 can rotate around the optical axis OA in at least one of between the module holder 2 and the first engagement portion V1 and between the fixed-side member FB (base member 8 ) and the second engagement portion V2 .

[0252] In the illustrated example, the guide mechanism GM includes a first guide mechanism GM1 provided between the engagement portion 2T of the module holder 2 and the first engagement portion V1 of the connection member 3 , and a second guide mechanism GM2 provided between the engagement portion 8T of the base member 8 and the second engagement portion V2 of the connection member 3 .

[0253] In the above embodiment, if Fig.11 As shown, the first guide mechanism GM1 is constituted to include a first groove portion G1 formed on the upper end surface of the engaging portion 2T of the module holding body 2, a first recessed portion H1 formed on the lower end surface of the first engaging portion V1 of the connecting member 3, and a first rotating body Q1. However, the first guide mechanism GM1 may also be constituted by a convex portion (e.g., a hemispherical convex portion) provided on one side of the module holding body 2 and the connecting member 3 and a recessed portion (e.g., a U-shaped recessed portion) provided on the other side, instead of using a rotating body. In this case, the module holding body 2 and the connecting member 3 can rotate relative to each other by sliding the convex portion in the recessed portion. The same is true for the second guide mechanism GM2.

[0254] This structure can realize the rotation of one of the two components connected via the guide mechanism GM, and can prevent the structure from becoming complicated. That is, this structure can realize the rotation of one of the two components connected via the guide mechanism GM through a relatively simple structure. Therefore, this structure can prevent the module drive device 100 from becoming large-scale.

[0255] The module holder 2 may also be configured to be rotatable around the optical axis OA between the module holder 2 and the first engaging portion V1 of the connecting member 3. In the illustrated example, the module holder 2 is configured to be rotatable around the optical axis OA between the module holder 2 and the first engaging portion V1 of the connecting member 3 through the first guide mechanism GM1. Specifically, the module holder 2 has an engaging portion 2T corresponding to the first engaging portion V1 of the connecting member 3. The first guide mechanism GM1 is formed by a first groove G1 (see FIG. 2 ) formed on the upper surface of the engaging portion 2T. Figure 5 ), a first recess H1 (see Figure 7 ), and a first rotating body Q1 (see Figure 6 This structure can relatively easily realize the relative rotational movement between the module holding body 2 and the connecting member 3 connected via the first guide mechanism GM1.

[0256] The connection member 3 may be configured to be rotatable about the optical axis OA both between the module holding body 2 and the first engagement portion V1 and between the fixed-side member FB (base member 8 ) and the second engagement portion V2 .

[0257] In the example shown in the figure, the connecting member 3 is configured to be able to rotate around the optical axis OA between the module holding body 2 and the first engaging portion V1 and between the fixed side member FB (base member 8) and the second engaging portion V2 through the first guide mechanism GM1 and the second guide mechanism GM2. Specifically, the base member 8 has an engaging portion 8T corresponding to the second engaging portion V2 of the connecting member 3. The second guide mechanism GM2 is formed by a second groove portion G2 (see FIG. 2 ) formed on the upper surface of the engaging portion 8T. Fig. 9 ), a second recess H2 (see Figure 7 ), and a second rotating body Q2 (see Figure 8 )constitute.

[0258] This configuration has the effect of increasing the rotation range (rotation angle) compared to a case where the connecting member 3 is configured to be rotatable around the optical axis OA between the module holder 2 and the first engaging portion V1 and between the fixed side member FB (base member 8) and the second engaging portion V2.

[0259] The first engaging portion V1 may also be arranged at two positions opposite to each other across the optical axis OA and along the first axis (the axis of the third rotation axis RX3). The second engaging portion V2 may also be arranged at two positions opposite to each other across the optical axis OA and along the second axis (the axis of the second rotation axis RX2). Furthermore, it may also be that, when observed along the optical axis direction (viewed from above), the first axis and the second axis are arranged to be orthogonal. In this case, it may also be that the first shape memory alloy wire SC1 is respectively arranged at two positions separated in the axial direction (X-axis direction) of the second axis across the module retaining body 2, and the second shape memory alloy wire SC2 is respectively arranged at two positions separated in the axial direction (Y-axis direction) of the first axis across the module retaining body 2.

[0260] This configuration connects the two members via the guide mechanism GM at two positions across the optical axis OA, thereby stabilizing the relative rotational motion of the two members. This configuration has the effect of enabling the other of the two members to swing relative to one of the two members.

[0261] Two first shape memory alloy wires SC1 may be respectively arranged at two positions separated in the axial direction (X-axis direction) of the second axis (axis of the second rotation axis RX2), and the two first shape memory alloy wires SC1 may cross each other when observed along the axial direction (X-axis direction) of the second axis, and constitute a first line pair. Two second shape memory alloy wires SC2 may also be respectively arranged at two positions separated in the axial direction (Y-axis direction) of the first axis (axis of the third rotation axis RX3), and the two second shape memory alloy wires SC2 may cross each other when observed along the axial direction (Y-axis direction) of the first axis, and constitute a second line pair.

[0262] In the example shown in the figure, the two first shape memory alloy wires SC1 constituting the first wire pair are the combination of the first wire SA1 and the second wire SA2 and the combination of the third wire SA3 and the fourth wire SA4. The two second shape memory alloy wires SC2 constituting the second wire pair are the combination of the fifth wire SA5 and the sixth wire SA6 and the combination of the seventh wire SA7 and the eighth wire SA8.

[0263] Compared with the case where two shape memory alloy wires SA are arranged so as not to cross, this configuration can increase the length of the arranged shape memory alloy wires SA. Therefore, this configuration can increase the driving force generated by the driving unit DM. In this configuration, the shape memory alloy wires SA are arranged in a manner inclined relative to the XY plane. Therefore, compared with the case where the shape memory alloy wires SA are arranged parallel to the XY plane, this configuration has the effect of facilitating the relative swinging action of the two components connected via the guide mechanism GM.

[0264] One ends of the two first shape memory alloy wires SC1 constituting the first wire pair may be electrically connected to each other, and one ends of the two second shape memory alloy wires SC2 constituting the second wire pair may be electrically connected to each other.

[0265] This configuration can partially overlap the paths of the currents flowing through the two shape memory alloy wires SA, and thus can simplify the structure of the module drive device 100.

[0266] The first movable part MB1 including the module holding body 2 may also include a first metal component (first lower terminal plate 5F1 to fourth lower terminal plate 5F4) for fixing one end of the first shape memory alloy wire SC1. The second movable part MB2 including the connecting part 3 may also include a second metal component (first upper terminal plate 5M1 to fourth upper terminal plate 5M4) for fixing the other end of the first shape memory alloy wire SC1, and a third metal component (fifth upper terminal plate 5M5 to eighth upper terminal plate 5M8) for fixing one end of the second shape memory alloy wire SC2. The fixed side part FB (base part 8) may also include a fourth metal component (fifth lower terminal plate 5F5 to eighth lower terminal plate 5F8) for fixing the other end of the second shape memory alloy wire SC2. Furthermore, when the module holding body 2 is in the neutral position, the first metal component (the first lower connection board 5F1 to the fourth lower connection board 5F4) and the second metal component (the first upper connection board 5M1 to the fourth upper connection board 5M4) respectively have plate-shaped portions PM arranged substantially parallel to each other, and the third metal component (the fifth upper connection board 5M5 to the eighth upper connection board 5M8) and the fourth metal component (the fifth lower connection board 5F5 to the eighth lower connection board 5F8) respectively have plate-shaped portions PM arranged substantially parallel to each other (see Fig. 9 ).

[0267] This configuration has an effect that the plurality of metal members 5 to which the shape memory alloy wires SA are fixed can be simultaneously mounted on corresponding members, and the ease of assembling the module drive device 100 can be improved.

[0268] A conducting component (first embedded conducting component 20) for conducting electricity to at least one of the first shape memory alloy wire SC1 and the second shape memory alloy wire SC2 may also be provided in the module holder 2. In the example shown in the figure, the first embedded conducting component 20 is embedded in the module holder 2 by insert molding. This configuration has the effect of facilitating the formation of a conductive path to the shape memory alloy wire SA.

[0269] The module driving device 100 may also include: a first conductive member 6 in the form of a leaf spring made of metal, which is arranged to connect the module holding body 2 and the connecting member 3; a second conductive member 7 in the form of a leaf spring made of metal, which is arranged to connect the connecting member 3 and the fixed side member FB (base member 8); and a third conductive member 9 in the form of a leaf spring made of metal, which is arranged to connect the module holding body 2 and the fixed side member FB (base member 8). In this case, the first conductive member 6, the second conductive member 7, and the third conductive member 9 may respectively constitute a conductive path that is connected to at least one of the first shape memory alloy wire SC1 and the second shape memory alloy wire SC2. This configuration has the effect of facilitating the formation of a conductive path that reaches the shape memory alloy wire SA.

[0270] Alternatively, two of the first conductive component 6, the second conductive component 7, and the third conductive component 9 and the remaining one of the first conductive component 6, the second conductive component 7, and the third conductive component 9 may be disposed opposite to each other in the optical axis direction via the connecting component 3. This configuration has the effect of suppressing interference between the conductive components.

[0271] The guide mechanism GM may include a first guide mechanism GM1 and a second guide mechanism GM2. In this case, the first guide mechanism GM1 may include: a first rotating body Q1 provided between each of the plurality of first engaging portions V1 of the module holding body 2 and the connecting member 3; and a first arc-shaped groove G1 centered on the optical axis OA provided on at least one of the module holding body 2 and the connecting member 3 that face each other across the first rotating body Q1. The second guide mechanism GM2 may include: a second rotating body Q2 provided between each of the plurality of second engaging portions V2 of the fixed side member FB (base member 8) and the connecting member 3; and a second arc-shaped groove G2 centered on the optical axis OA provided on at least one of the fixed side member FB (base member 8) and the connecting member 3 that face each other across the second rotating body Q2. Furthermore, the first rotating body Q1 and the second rotating body Q2 may be provided on the lower side of the connecting member 3. In this structure, the first rotating body Q1 can roll in the first groove G1, and the second rotating body Q2 can roll in the second groove G2. Therefore, this structure has the following effects: the relative rotational movement between the module holding body 2 and the connecting member 3 and the relative rotational movement between the connecting member 3 and the base member 8 can be smoothed.

[0272] The optical device of the embodiment of the present disclosure may also include: a lens holder 2x, capable of holding the lens body LS; a shooting element holder AD, which is arranged to be non-movable relative to the shooting element IS arranged opposite to the lens body LS; a module-side driving unit DMx, which moves the lens holder 2x relative to the module-side fixing component FBx including the shooting element holder AD; a module holder 2, which holds the module-side fixing component FBx and is movable relative to the fixing side component FB; a guiding mechanism GM, which guides the rotation of the module holder 2 around the optical axis OA of the lens body LS; a driving unit DM, which rotates the module holder 2 around the optical axis OA; and a connecting component 3.

[0273] In this case, the driving part DM may also be configured to include a plurality of shape memory alloy wires SA, which are arranged between a movable side part MB including the module holding body 2 and a fixed side part FB (base part 8). The connecting part 3 may also be connected to the module holding body 2 through a plurality of first engaging parts V1, and connected to the fixed side part FB (base part 8) through a plurality of second engaging parts V2. The guiding mechanism GM may also be configured so that the module holding body 2 can rotate around the optical axis OA between at least one of the module holding body 2 and the first engaging part V1 and between the fixed side part FB (base part 8) and the second engaging part V2. This configuration can suppress the complexity of the structure for realizing the rotational movement of the module holding body 2. That is, this configuration can realize the rotational movement of the module holding body 2 through a relatively simple structure.

[0274] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the above embodiments. Various modifications and substitutions can be applied to the above embodiments and the embodiments described below without departing from the scope of the present invention. The various features described with reference to the above embodiments and the embodiments described below can also be appropriately combined as long as they are not technically contradictory.

[0275] For example, in the above embodiment, the metal member 5 is fixed to each member (module holder 2, connection member 3 and base member 8) using an adhesive, but it may be embedded in each member or may be a conductive pattern formed on the surface of each member.

[0276] In the above-mentioned embodiment, the module holder 2 is integrally formed with the cover part of the lens driving device LD which is a part of the module-side fixing part FBx constituting the camera module MD. That is, the module holder 2 functions as a part of the module-side fixing part FBx constituting the camera module MD. However, the cover part of the lens driving device LD may be a part different from the module holder 2. In this case, the cover part of the lens driving device LD may be fixed to the module holder 2 by an adhesive or the like. Alternatively, the module holder 2 may be integrally formed with other parts constituting the module-side fixing part FBx constituting the camera module MD. For example, the module holder 2 may be integrally formed with the module-side base part 8x constituting the camera module MD.

[0277] In the above embodiment, the module-side base component 8x, the imaging device holder AD, and the spacer SP constituting the module-side fixing component FBx are formed as separate components, but at least one of the imaging device holder AD and the spacer SP may be integrated with the module-side base component 8x.

[0278] This application claims priority based on Japanese Patent Application No. 2022-080480 filed on May 16, 2022, the entire contents of which are incorporated herein by reference.

[0279] Explanation of symbols:

[0280] 2: module holder; 2A: peripheral wall; 2B: top plate; 2D: seat; 2DL: left seat; 2DR: right seat; 2Dx: movable seat; 2D1x: first movable seat; 2D2x: second movable seat; 2G: flange; 2GBL: left rear flange; 2GBR: right rear flange; 2GFL: left front flange; 2GFR: right front flange; 2Sx: protruding portion; 2S1x: first protruding portion; 2S2x: second protruding portion; 2T: engaging portion; 2TL: left engaging portion; 2TR: right engaging portion; 2x: lens holder; 3: connecting member; 3D: seat; 3DB: rear seat; 3DF: front seat; 3DL: left pedestal; 3DR: right pedestal; 3E: side; 3E1: 1st side; 3E2: 2nd side; 3E3: 3rd side; 3E4: 4th side; 3K: opening; 4: cover; 4A: peripheral wall; 4A1: 1st side plate; 4A2: 2nd side plate; 4A3: 3rd side plate; 4A4: 4th side plate; 4B: top plate; 4K: opening; 4S: storage; 5: metal part; 5F: lower metal part; 5F1: 1st lower terminal block; 5F2: 2nd lower terminal block; 5F3: 3rd lower terminal block; 5F4: 4th lower terminal block; 5F5: 5th lower terminal block; 5F6: 6th lower terminal block; 5F7: 7th lower terminal block; 5F8: 8th lower terminal block Side terminal block; 5K: Module side fixed metal parts; 5K1: 1st fixed side terminal block; 5K2: 2nd fixed side terminal block; 5K3: 3rd fixed side terminal block; 5K4: 4th fixed side terminal block; 5K5: 5th fixed side terminal block; 5K6: 6th fixed side terminal block; 5K7: 7th fixed side terminal block; 5K8: 8th fixed side terminal block; 5M: Upper side metal parts; 5M1: 1st upper side terminal block; 5M2: 2nd upper side terminal block; 5M3: 3rd upper side terminal block; 5M4: 4th upper side terminal block; 5M5: 5th upper side terminal block; 5M6: 6th upper side terminal block; 5M7: 7th upper side terminal block; 5M8: 8th upper side terminal block; 5W: Module side movable metal parts; 5W1: 1st movable side Terminal block; 5W2: 2nd movable side terminal block; 5W3: 3rd movable side terminal block; 5W4: 4th movable side terminal block; 5x: Module side metal part; 6: 1st conductive part; 6L: Left conductive part; 6R: Right conductive part; 6x: Leaf spring; 6Ax: 1st leaf spring; 6A1x: 1st part; 6A2x: 2nd part; 6A3x: 3rd part; 6A4x: 4th part; 6A5x: 5th part; 6Bx: 2nd leaf spring; 6B1x: 1st part; 6B2x: 2nd part; 6B3x: 3rd part; 6B4x: 4th part; 6B5x: 5th part; 6EL, 6ER: Outer fixed part; 6GL, 6GR: Elastic part; 6IL, 6IR: Inner fixed part;6L: left conductive component; 6R: right conductive component; 7: second conductive component; 7B: rear conductive component; 7BL: left rear conductive component; 7BR: right rear conductive component; 7EBL, 7EBR, 7EFL, 7EFR: outer fixing portion; 7F: front conductive component; 7FL: left front conductive component; 7FR: right front conductive component; 7GBL, 7GBR, 7GFL, 7GFR: elastic portion; 7IBL, 7IBR, 7IFL, 7IFR: inner fixing portion; 8: base component; 8D: seat portion; 8DB: rear seat portion; 8DBL: left rear seat portion; 8DBR: right rear seat portion; 8DF: front seat portion; 8DFL: left front seat portion; 8DFR : Right front seat; 8Dx: Fixed seat; 8D1x: 1st fixed seat; 8D2x: 2nd fixed seat; 8E, 8Ex: Side; 8E1, 8E1x: 1st side; 8E2, 8E2x: 2nd side; 8E3, 8E3x: 3rd side; 8E4, 8E4x: 4th side; 8K, 8Kx: Opening; 8T: Snap-fitting part; 8TB: Rear snap-fitting part; 8TF: Front snap-fitting part; 8x: Module side base part; 9: 3rd conductive part; 9BL: Left rear conductive part; 9BR: Right rear conductive part; 9EFL, 9EFR, 9EBL, 9EBR: Outer fixed part; 9FL: Left front conductive part; 9FR: Right front conductive part; 9GBL, 9GBR, 9GFL, 9GFR: elastic part; 9IBL, 9IBR, 9IFL, 9IFR: inner fixing part; 12x: cylindrical part; 20: first buried current component; 20B: rear side current component; 20F: front side current component; 20L: left side current component; 20R: right side current component; 20x: module side buried current component; 30: second buried current component; 30BL: left rear side current component; 30BR: right rear side current component; 30FL: left front side current component; 30FR: right front side current component; 80: third buried current component; 100: module driving device; 150: optical device; AD: imaging element holder; CB1: first current component; CB2: second current component electric component; CB3: the third electric component; CB4: the fourth electric component; CB5: the fifth electric component; CB6: the sixth electric component; CB7: the seventh electric component; CB8: the eighth electric component; CB9: the ninth electric component; CB10: the tenth electric component; CB11: the eleventh electric component; CB12: the twelfth electric component; CB13: the thirteenth electric component; CB14: the fourteenth electric component; CB15: the fifteenth electric component; CB16: the sixteenth electric component; CB17: the seventeenth electric component; CB18: the eighteenth electric component; CB19: the nineteenth electric component; CB20: the twentieth electric component; CB21: the twenty-first electric component; CB22: the twenty-second electric component;CD1: 1st current-carrying component; CD2: 2nd current-carrying component; CD3: 3rd current-carrying component; CD4: 4th current-carrying component; CD5: 5th current-carrying component; CD6: 6th current-carrying component; CD7: 7th current-carrying component; CD8: 8th current-carrying component; CD9: 9th current-carrying component; CD10: 10th current-carrying component; CD11: 11th current-carrying component; CTL1, CTL2: cut-off line; DM: drive unit; DMx: module-side drive unit; EC: intermediate current-carrying component; EC1: 1st intermediate current-carrying component; EC2: 2nd intermediate current-carrying component; EC3: 3rd intermediate current-carrying component; EC4: 4th intermediate current-carrying component; EC5: 5th intermediate current-carrying component; EC6: 6th intermediate current-carrying component; EC7 : 7th intermediate current-carrying component; EC8: 8th intermediate current-carrying component; EC9: 9th intermediate current-carrying component; EC10: 10th intermediate current-carrying component; FB: fixed side component; FBx: module side fixed component; FC: flexible substrate; G1: 1st groove; G1L: 1st left groove; G1R: 1st right groove; G2: 2nd groove; G2B: 2nd rear groove; G2F: 2nd front groove; GM: guide mechanism; GM1: 1st guide mechanism; GM1L: 1st left guide mechanism; GM1R: 1st right guide mechanism; GM2: 2nd guide mechanism; GM2B: 2nd rear guide mechanism; GM2F: 2nd front guide mechanism; H1: 1st recess; H1L: 1st left recess; H1R: 1st right side recess; H2: 2nd recess; H2B: 2nd rear side recess; H2F: 2nd front side recess; HS: frame; IS: imaging element; J1~J4: holding part; LC: lower conductive part; LD: lens driving device; LS: lens body; MB: movable side part; MB1: 1st movable part; MB2: 2nd movable part; MBx: module side movable part; MD: camera module; MG1: 1st magnet; MG1L: 1st left side magnet; MG1R: 1st right side magnet; MG2: 2nd magnet; MG2L: 2nd left side magnet; MG2R: 2nd right side magnet; MG3: 3rd magnet; MG3B: 3rd rear side magnet; MG3F: 3rd front side magnet; MG4: 4th magnet; MG4B : 4th rear magnet; MG4F: 4th front magnet; N1: 1st storage part; N1L: 1st left storage part; N1R: 1st right storage part; N2: 2nd storage part; N2L: 2nd left storage part; N2R: 2nd right storage part; N3: 3rd storage part; N3B: 3rd rear storage part; N3F: 3rd front storage part; N4: 4th storage part; N4B: 4th rear storage part; N4F: 4th front storage part; OA: optical axis; PM, PM1~PM4: plate-like part; Q1: 1st rotating body; Q1L: 1st left rotating body; Q1R: 1st right rotating body; Q2: 2nd rotating body; Q2B: 2nd rear rotating body; Q2F: 2nd front rotating body; RX1: 1st rotating axis;RX2: 2nd rotation axis; RX3: 3rd rotation axis; SA: shape memory alloy wire; SB: module side shape memory alloy wire; SA1, SB1: 1st wire; SA2, SB2: 2nd wire; SA3, SB3: 3rd wire; SA4, SB4: 4th wire; SA5, SB5: 5th wire; SA6, SB6: 6th wire; SA7, SB7: 7th wire; SA8, SB8: 8th wire; SC1: 1st shape memory alloy wire; SC2: 2nd shape memory alloy wire; SC3: 3rd shape memory alloy wire; SC4: 4th shape memory alloy wire; SP: spacer; UC: upper conductive component; V: engaging portion; V1: 1st engaging portion; V1L: 1st left engaging portion; V1R: 1st right engaging portion; V2: 2nd engaging portion; V2B: 2nd rear engaging portion; V2F: 2nd front engaging portion. ;

Claims

1. A module driving device, comprising: A module holder capable of holding an optical module having a lens body and a photographing element; a connecting member connected to the module holding body in such a manner that the module holding body can swing around a first axis intersecting the optical axis direction; a fixed-side member connected to the connecting member in such a manner that the connecting member can swing around a second axis perpendicular to the axial direction of the first axis; and a driving unit for moving the module holding body relative to the fixed side member; The module drive device is characterized in that: At least one of the module holding body and the connecting member and the connecting member and the fixed-side member is connected via two first rotating bodies arranged opposite to each other with the optical axis interposed therebetween, and the two corresponding members connected via the first rotating bodies are configured to be rotatable relative to each other around the optical axis.

2. The module driving device according to claim 1, characterized in that: The module holding body and the connecting member are connected via the first rotating body, and a first arc-shaped groove portion centered on the optical axis is formed in at least one of the module holding body and the connecting member that are opposed to each other across the first rotating body.

3. The module driving device according to claim 2, characterized in that: The connecting member and the fixed-side member are connected via two second rotating bodies arranged opposite to each other with the optical axis sandwiched therebetween, and a second arc-shaped groove portion centered on the optical axis is formed in at least one of the connecting member and the fixed-side member opposite to each other with the second rotating body sandwiched therebetween.

4. The module driving device according to claim 3, characterized in that: The connecting member is provided with a first recessed portion for holding the first rotating body and a second recessed portion for holding the second rotating body.

5. The module driving device according to claim 4, characterized in that: The first recessed portion and the second recessed portion are provided on the lower surface side of the connecting member.

6. The module driving device according to any one of claims 3 to 5, characterized in that: The connecting member has a portion disposed on the upper side of the fixed side member. The module holding body has a portion arranged below the connecting member. The first rotating body and the second rotating body are respectively arranged on the lower side of the connecting member.

7. The module driving device according to any one of claims 3 to 5, characterized in that: The connecting member and the module holding body are respectively provided with a first magnet and a second magnet which are arranged to attract each other via the first rotating body. The connection member and the fixed-side member are provided with a third magnet and a fourth magnet, respectively, which are arranged to attract each other via the second rotating body.

8. The module driving device according to claim 7, characterized in that: The first rotating body and the second rotating body are made of a magnetic material.

9. The module driving device according to claim 8, characterized in that: The first magnet includes a first one-side magnet and a first other-side magnet. The second magnet includes a second one-side magnet and a second other-side magnet. The third magnet includes a third one-side magnet and a third other-side magnet. The fourth magnet includes a fourth one-side magnet and a fourth other-side magnet. The attraction force between the first side magnet and the second side magnet arranged across one of the two first rotating bodies, and the attraction force between the first other side magnet and the second other side magnet arranged across the other of the two first rotating bodies are different from each other, and / or the attraction force between the third side magnet and the fourth side magnet arranged across one of the two second rotating bodies, and the attraction force between the third other side magnet and the fourth other side magnet arranged across the other of the two second rotating bodies are different from each other.

10. The module driving device according to any one of claims 1 to 5, characterized in that: The driving unit is configured to include a plurality of shape memory alloy wires provided between a movable side member including the module holding body and the connecting member and the fixed side member.

11. The module driving device according to claim 10, characterized in that: The driving part includes a plurality of first shape memory alloy wires, and the plurality of first shape memory alloy wires are disposed between a first movable part including the module holder and a second movable part including the connecting member. The plurality of shape memory alloy wires provided between the movable-side member and the fixed-side member are constituted by a plurality of second shape memory alloy wires provided between the second movable portion and the fixed-side member.

12. The module driving device according to claim 11, characterized in that: Two of the first shape memory alloy wires are respectively arranged at two positions separated in the axial direction of the second axis across the module holder, and the two first shape memory alloy wires cross each other when viewed along the axial direction of the second axis. The two second shape memory alloy wires are respectively arranged at two positions separated in the axial direction of the first axis across the module holder, and the two second shape memory alloy wires intersect each other when viewed along the axial direction of the first axis.

13. A module driving device, comprising: A module holder capable of holding an optical module having a lens body and a photographing element; a connecting member connected to the module holding body in such a manner that the module holding body can swing around a first axis intersecting the optical axis direction; a fixed-side member connected to the connecting member in such a manner that the connecting member can swing around a second axis perpendicular to the axial direction of the first axis; and a driving unit for moving the module holding body relative to the fixed side member; The module drive device is characterized in that: At least one of the module holding body and the connecting member and the connecting member and the fixed-side member is connected via two first rotating bodies that are rotatably arranged to face each other with the optical axis interposed therebetween. The first rotating body is made of magnetic material. A first magnet and a second magnet arranged to attract each other via the first rotating body are provided on two corresponding members connected via the first rotating body, respectively.

14. The module driving device according to claim 13, characterized in that: The first magnet includes a first one-side magnet and a first other-side magnet. The second magnet includes a second one-side magnet and a second other-side magnet. The attraction force between the first side magnet and the second side magnet disposed across one of the two first rotating bodies and the attraction force between the first other side magnet and the second other side magnet disposed across the other of the two first rotating bodies are different from each other.

15. The module driving device according to claim 13 or 14, characterized in that: The module holding body and the connecting member are connected via the first rotating body. The connecting member and the fixed-side member are connected via two second rotating bodies that are arranged to rotate opposite to each other with the optical axis interposed therebetween. The second rotating body is made of magnetic material. The connection member and the fixed-side member are provided with a third magnet and a fourth magnet, respectively, which are arranged to attract each other via the second rotating body.

16. The module driving device according to claim 15, characterized in that: The third magnet includes a third one-side magnet and a third other-side magnet. The fourth magnet includes a fourth one-side magnet and a fourth other-side magnet. The attraction force between the third one side magnet and the fourth one side magnet disposed across one of the two second rotating bodies and the attraction force between the third other side magnet and the fourth other side magnet disposed across the other of the two second rotating bodies are different from each other.

17. An optical device, characterized in that: have: The module drive device according to any one of claims 1 to 5; and The optical module is held by the module holding body.

18. The optical device according to claim 17, characterized in that The optical module has: Module side fixing parts; a lens holder that holds the lens body; and The module-side driving unit moves the lens holding body relative to the module-side fixing member.

19. The optical device according to claim 18, characterized in that The module-side driving unit is configured to include a plurality of module-side shape memory alloy wires provided between a module-side movable member including the lens holder and the module-side fixed member.

20. The optical device according to claim 19, characterized in that The plurality of module-side shape memory alloy wires have: two third shape memory alloy wires are respectively arranged at two positions separated from each other in the axial direction of the second axis across the lens holding body; and The two fourth shape memory alloy wires are respectively arranged at two positions separated from each other in the axial direction of the first axis across the lens holding body. The two third shape memory alloy wires cross each other when viewed along the axial direction of the second axis. The two fourth shape memory alloy wires intersect each other when viewed in the axial direction along the first axis.

21. An optical device comprising: A lens holder capable of holding the lens body; An imaging element holding body is arranged to be non-movable relative to the imaging element arranged opposite to the lens body; A module-side driving unit that moves the lens holding body relative to a module-side fixing component including the imaging element holding body; A module holding body, holding the module-side fixing component; a connecting member connected to the module holding body in such a manner that the module holding body can swing around a first axis intersecting the optical axis direction; a fixed-side member connected to the connecting member in such a manner that the connecting member can swing around a second axis perpendicular to the axial direction of the first axis; and a driving unit for moving the module holding body relative to the fixed side member; The optical device is characterized in that At least one of the module holding body and the connecting member and the connecting member and the fixed-side member is connected via two first rotating bodies disposed opposite to each other across the optical axis, and the two corresponding members connected via the first rotating bodies are configured to be relatively rotatable around the optical axis.

Images