Optical element driving device, camera device, and electronic equipment

Abstract

The present invention provides an optical element driving device, a camera device, and an electronic device, which can control the direction of light passing through the optical element with high precision even without complex control. The optical element driving device (3) includes: a housing (10) as a fixed portion; a liquid lens unit (50) as an optical element, in which a liquid is sealed between a first end face and a second end face facing each other, and the first end face is fixed to the housing (10); a first movable portion (30) supported by the housing (100) and rotatable around a first rotation axis (101); and a second movable portion (40) supported by the first movable portion (30) and rotatable around a second rotation axis (102) perpendicular to the first rotation axis (101), and fixed to the second end face.

Description

Technical Field

[0001] The present invention relates to an optical element driving device, a camera device, and an electronic device used in electronic devices such as smartphones. Background Art

[0002] Camera devices used in electronic devices such as smartphones sometimes use liquid lens cells or other optical elements to control the direction of light from a photographed subject. For example, Patent Document 1 discloses an imaging system using an optical element filled with liquid within a container having a transparent bottom and a transparent window facing the bottom. This imaging system deforms the optical element by tilting the transparent window about a first axis and a second axis perpendicular to the first axis, thereby controlling the direction of light passing through the optical element.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2021-505951. Summary of the Invention

[0006] (Problems to be solved by the invention)

[0007] However, the technology of Patent Document 1 tilts the transparent window about the first axis by applying different forces to the ends of the transparent window in the second axis, and tilts the transparent window about the second axis by applying different forces to the ends of the transparent window in the first axis. Consequently, the position of the first axis shifts due to the balance of forces applied to the ends of the transparent window in the second axis, and the position of the second axis shifts due to the balance of forces applied to the ends of the transparent window in the first axis, resulting in a problem of reduced control accuracy of the traveling direction of the light. Furthermore, the imaging system of Patent Document 1 requires a complex control system for controlling the forces applied to the ends of the transparent window in the second axis and the forces applied to the ends of the transparent window in the first axis, resulting in a lack of reliability.

[0008] The present invention has been conceived in view of such problems, and an object of the present invention is to provide an optical element driving device, a camera device, and an electronic device that can control the traveling direction of light passing through an optical element with high accuracy without performing complex control.

[0009] (Solutions to solve problems)

[0010] In order to solve the above-mentioned problems, an optical element driving device as a preferred embodiment of the present invention is characterized in that it includes: a fixed part; an optical element, in which a liquid is sealed between a first end face and a second end face opposite to each other, and the first end face is fixed to the fixed part; a first movable part, supported by the fixed part and capable of rotating around a first rotation axis; and a second movable part, supported by the first movable part, capable of rotating around a second rotation axis orthogonal to the first rotation axis, and fixing the second end face.

[0011] In this aspect, the device may further include: a first driving unit that drives the first movable unit to rotate about the first rotation axis; and a second driving unit that drives the second movable unit to rotate about the second rotation axis.

[0012] Furthermore, the first driving portion may include a first magnet fixed to the first movable portion and a first coil fixed to the fixed portion, and the second driving portion may include a second magnet fixed to the first movable portion and a second coil fixed to the second movable portion.

[0013] In addition, it may also include: a first detection part, fixed to the fixed part, detecting the rotational displacement of the first movable part around the first rotation axis by detecting the magnetic field generated by the first magnet; and a second detection part, fixed to the second movable part, detecting the rotational displacement of the second movable part around the second rotation axis by detecting the magnetic field generated by the second magnet.

[0014] Furthermore, the device may include a first wire spring connected between the fixed portion and the first movable portion, and a second wire spring connected between the first movable portion and the second movable portion.

[0015] Furthermore, the first wire spring may be provided at a position other than the first rotation axis of the first movable portion, and the second wire spring may be provided at a position other than the second rotation axis of the second movable portion.

[0016] Furthermore, the first rotation axis and the second rotation axis may be orthogonal to an axis passing through the center of the first end surface and perpendicular to the first end surface.

[0017] Furthermore, the first rotation axis and the second rotation axis may be at the same height as the second end surface.

[0018] Furthermore, the device may include an FPC having a strip-shaped portion for allowing current to flow to the second coil, wherein the strip-shaped portion is provided in a spiral shape.

[0019] A camera device according to another preferred embodiment of the present invention is characterized by comprising the above-mentioned optical element driving device.

[0020] As another preferred embodiment of the present invention, an electronic device is characterized by including the above-mentioned camera device.

[0021] (Effects of the Invention)

[0022] The optical element driving device according to the present invention is characterized by comprising: a fixed portion; an optical element having a first end face and a second end face sealed between them, the first end face being fixed to the fixed portion; a first movable portion supported by the fixed portion and rotatable about a first rotation axis; and a second movable portion supported by the first movable portion and rotatable about a second rotation axis perpendicular to a plane containing the first rotation axis, to which the second end face is fixed. Therefore, the positions of the first and second rotation axes are prevented from shifting, thereby improving the control accuracy of the tilt of the second end face of the optical element about the first and second rotation axes without requiring complex control. In other words, it is possible to provide an optical element driving device, a camera device, and an electronic device that achieve high accuracy in controlling the direction of travel of light passing through the optical element. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of a smartphone 9 which is an electronic device equipped with a camera device 8 including the optical element driving device 3 according to one embodiment of the present invention.

[0024] Figure 2 yes Figure 1 A three-dimensional view of the optical element driving device 3.

[0025] Figure 3 yes Figure 2 Exploded three-dimensional diagram.

[0026] Figure 4 It's viewed from another angle Figure 2 A three-dimensional view of the optical element driving device 3. DETAILED DESCRIPTION

[0027] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0028] like Figure 1 As shown, in this embodiment, a camera device 8 is mounted on an electronic device such as a smartphone 9. The camera device 8 includes: a prism 2 that bends incident light from a photographic subject at a right angle; an optical element driving device 3 that supports a liquid lens cell 50 through which light passing through the prism 2 passes and drives the device so as to change the inclination of the incident surface of the light; a lens body 6 through which light passing through the liquid lens cell 50 passes; and an image sensor 7 that performs photoelectric conversion on the light passing through the lens body 6.

[0029] The following describes the structure of this embodiment, assuming an orthogonal coordinate system consisting of mutually orthogonal X-, Y-, and Z-axes. The Z-axis is the optical axis passing through lens body 6. Light from the subject is incident on prism 2 from the X-axis direction, is bent at a right angle by prism 2, travels along the Z-axis direction, and passes through liquid lens cell 50 and lens body 6. Hereinafter, in the Z-axis direction, as viewed from lens body 6, the side where prism 2 is located is referred to as the -Z side, and the opposite side where image sensor 7 is located is referred to as the +Z side. Furthermore, in the X-axis direction, as viewed from prism 2, the side where the subject is located is referred to as the +X side, and the opposite side is referred to as the -X side.

[0030] like Figures 2 to 4 As shown, the optical element driving device 3 generally has the following structure. The optical element driving device 3 includes: a fixed portion including a housing 10; a liquid lens cell 50 serving as an optical element; a first movable portion 30; and a second movable portion 40. The liquid lens cell 50 has a liquid sealed between its first and second opposing end faces, with the first end face being fixed to the fixed portion. The first movable portion 30 is supported by the fixed portion so as to be rotatable about a first rotation axis. The second movable portion 40 is supported by the first movable portion so as to be rotatable about a second rotation axis, thereby fixing the second end face of the liquid lens cell 50.

[0031] The optical element driving device 3 includes first and second driving units, first and second detecting units, and first and second wire springs 171 and 172. The first wire spring 171 returns the first movable unit 30 to the origin, and the second wire spring 172 returns the second movable unit 40 to the origin.

[0032] Before describing the structure of the optical element driving device 3 in detail, the prism 2 and the stage 20 are described. The stage 20 is a member that supports the prism 2. Figure 3 As shown, the prism 2 has a cross-sectional shape of a right-angled isosceles triangle surrounded by an incident surface 2x and an exit surface 2z that are orthogonal to each other and a reflective surface 2t connecting them. The table portion 20 includes a supporting portion 21 having an inclined portion and two side wall portions, and the reflective surface 2t of the prism 2 is supported by the supporting portion 21. The table portion 20 supporting the prism 2 is accommodated in the housing 10 of the optical element driving device 3 and is fixed to the main body of the camera device 8. Light from the photographed object is incident from the +X side on the incident surface 2x of the prism 2 supported by the table portion 20. The light is bent at a right angle by the reflective surface 2t of the prism 2 and is emitted from the exit surface 2z to the +Z side. The exit light from the prism 2 passes through the liquid lens unit 50 described later and the through hole 14 of the housing 10, and is directed toward Figure 1 lens body 6 and image sensor 7.

[0033] Next, the structure of the optical element driving device 3 will be described in detail. In the optical element driving device 3, the housing 10, which serves as the fixing portion, is formed by bending a plate-like member. It has a main body 13 and two roughly rectangular side panels 11 and 12 extending from the Y-axis ends of the main body 13 in the -Z-axis direction. A through-hole 14 is provided in the center of the main body 13. The Y-axis sides adjacent to the through-hole 14 are cut away and bent toward the -Z-axis to form upright portions. Each upright portion has a through-hole serving as a bearing 111a or 111b. The bearings 111a and 111b are arranged side by side in the Y-axis direction, sandwiching the through-hole 14. Furthermore, a portion of the +Y-side edge of the main body 13 is bent toward the -Z-side to form an upright portion. A wire support portion 161 is provided in this upright portion. The optical element driving device 3 is fixed to the main body of the camera device 8 via the side panels 11 and 12 of the housing 10. In the present embodiment, a portion that is substantially fixed to the main body of the camera device 8 and does not move is regarded as a fixed portion.

[0034] like Figure 3 As shown, the first movable portion 30 , the second movable portion 40 , and the liquid lens cell 50 are arranged between the stage 20 and the main body 13 of the housing 10 .

[0035] The first movable portion 30 is formed by bending a plate-like member and includes a flat plate portion 31. This flat plate portion 31 comprises a main portion 31a having a through-hole 34 through which light emitted from the light exiting surface 2z of the prism 2 passes; and an extension portion 31b extending along the -Y side from the +X side portion of the -Y side edge of the main portion 31a. A side plate portion 32 extends from the +Y side edge of the main portion 31a in the -Z direction. A first magnet 201 is fixed to the +Y side surface of the side plate portion 32. This first magnet 201 is magnetized in the Y-axis direction, with its orientation opposite between the +X and -X sides. Furthermore, a side plate portion 33 extends from the -X side edge of the extension portion 31b in the -Z direction. A second magnet 202 is fixed to the -X side surface of the side plate portion 33. This second magnet 202 is magnetized in the X-axis direction, with its orientation opposite between the +Z and -Z sides.

[0036] The main body 31a of the first movable portion 30 includes an upright portion having the first rotating shafts 101a and 101b protruding in the +Z direction. The upright portion having the first rotating shaft 101a is formed by bending a portion of the -Y side of the main body 31a toward the +Z side. The first rotating shaft 101a is formed as a cylinder protruding from the -Y side of the upright portion. The upright portion having the first rotating shaft 101b is formed by cutting away the main body 31a and bending it toward the +Z side. The second rotating shaft 101b is formed as a cylinder protruding from the +Y side of the upright portion. The first rotating shafts 101a and 101b and the bearings 111a and 111b are arranged side by side in the Y direction with the through-hole 34 interposed therebetween. The first rotating shafts 101a and 101b are inserted into the bearings 111a and 111b of the housing 10 and are rotatably supported. Therefore, the first movable portion 30 can rotate relative to the housing 10 as a fixed portion around first rotation axes 101a and 101b parallel to the Y axis. The rotation axis formed by the first rotation axes 101a and 101b is referred to as the first rotation axis 101.

[0037] In the main body 31a of the first movable portion 30, the upright portion, which includes the wire support portion 151, is bent near the +Y end of the -X side. Furthermore, in the extended portion 31b of the first movable portion 30, the upright portion, which includes the wire support portion 152, is bent along the -X side. One end of the first wire spring 171 is supported by the wire support portion 151 of the first movable portion 30, and the other end is supported by the wire support portion 161 of the housing 10. The first wire spring 171 generates resistance to the rotational drive force of the first movable portion 30 about the first rotation axis 101.

[0038] The second movable portion 40 is formed by bending a planar member and includes a flat plate portion 41. This flat plate portion 41 comprises a main portion 41a having a through-hole 44 through which light emitted from the emission surface 2z of the prism 2 passes; and an extension portion 41b extending from the -Y side of the main portion 41a. A side plate portion 43 extends from the +X side of the extension portion 41b in the -Z direction.

[0039] Upright portions, each forming through-holes as bearings 112a and 112b, are bent from the ±X-side edges of the main body 41a of the second movable portion 40 and protrude in the +Z-axis direction. Bearings 112a and 112b are aligned along the X-axis, sandwiching through-hole 44. Furthermore, the second rotation axes 102a and 102b of the first movable portion 30 are also aligned along the X-axis, sandwiching through-hole 34. The second movable portion 40 is positioned on the +Z side of the first movable portion 30, with the side plate 43 adjacent to the -X side of the side plate 33. Furthermore, the second rotation axes 102a and 102b of the first movable portion 30 are inserted into the bearings 112a and 112b of the second movable portion 40 and rotatably supported. Thus, the second movable portion 40 can rotate relative to the first movable portion 30 about the second rotation axes 102a and 102b, which are parallel to the X-axis. The axis of rotation formed by the second rotating axis 102 a and the first rotating axis 102 b at this time is referred to as a second rotating axis 102 .

[0040] Furthermore, the upright portion of the extended portion 41b of the second movable portion 40, which includes the wire support portion 162, is formed by bending the side on the -X side. Furthermore, one end of a second wire spring 172 is supported by the wire support portion 152 of the first movable portion 30, while the other end is supported by the wire support portion 162. The second wire spring 172 generates resistance to the rotational drive force of the second movable portion 40 about the second rotation axis 102.

[0041] Thus, in this embodiment, the fixed part, the first movable part 30 and the second movable part 40 supported by the first movable part 30 constitute a gimbal mechanism, so that the first movable part 30 rotates around the first rotation axis parallel to the Y axis, and the second movable part 40 rotates around the second rotation axis parallel to the X axis.

[0042] The liquid lens unit 50 is an optical element composed of a first plate 510, a first glass 520, a liquid lens 530, a second glass 540, and a second plate 550 arranged along the -Z axis. The first plate 510 and the second plate 550 are provided with through-holes 511 and 551, respectively, through which light emitted from the exit surface 2z of the prism 2 passes. Furthermore, cutouts 512a and 512b are provided on both sides of the first plate 510 in the Y axis direction, through which the upright portion of the housing 10, on which the bearings 111a and 111b are mounted, pass. The upright portion, on which the bearings 111a and 111b are mounted, reaches the upright portion of the first movable portion 30, on which the first rotating shafts 101a and 101b are mounted, via these cutouts 512a and 512b.

[0043] The liquid lens 530 is a lens formed by filling a transparent, flexible container with liquid. The first plate 510 is fixed to the -Z surface of the main body 13 of the housing 10. The second plate 550 is fixed to the +Z surface of the main body 41a of the second movable portion 40. The first glass 520 is fixed to the first plate 510 and the liquid lens 530, maintaining the flatness of the liquid lens 530 on the +Z side. The second glass 540 is fixed to the second plate 550 and the liquid lens 530, maintaining the flatness of the -Z surface of the liquid lens 530. Furthermore, stoppers 552 protruding toward the +Z side are provided at each of the four corners of the second plate 550. Therefore, when the second movable portion 40 tilts about the first rotation axis 101 and / or the second rotation axis 102, the second plate 550 also tilts in accordance with this tilt, and the -Z surface of the liquid lens 530 tilts while maintaining a flat surface. In the liquid lens cell 50 of this embodiment, the first glass 520 serves as the first end surface supported by the fixed portion, and the second glass 540 serves as the second end surface supported by the second movable portion 40. As a result, light emitted from the prism 2 travels in a direction inclined relative to the optical axis of the lens body 6, causing the position at which it enters the image sensor 7 to vary. Conversely, even if the direction of light entering the camera device 8 fluctuates due to vibration or the like, the position at which light enters the image sensor 7 can be maintained constant.

[0044] Regarding the through holes 14, 34, 44, 511, and 551, when viewed from the Z-axis direction, it is preferred that their centers be aligned. In addition, the center of the through hole 511 becomes the center of the first end face, and the first end face is perpendicular to the Z-axis. In addition, when viewed from the Z-axis direction, the first rotating shaft 101 and the second rotating shaft 102 preferably pass through this center. In addition, when viewed from a direction perpendicular to the Z-axis, the first rotating shaft 101 and the second rotating shaft 102 preferably overlap with the second end face, that is, are at the same height. In addition, when viewed from the Z-direction, if the first wire spring 171 is supported on the axis of the first rotating shaft 101 of the first movable part 30, the height will not change, so the wire support part 151 is set at a position that is not on the axis of the first rotating shaft 101. Similarly, when viewed from the Z direction, if the second wire spring 172 is supported on the axis of the second rotating shaft 102 of the second movable portion 40 , the height does not change. Therefore, the wire support portion 162 is provided at a position not on the axis of the second rotating shaft 102 .

[0045] The FPC 60 includes a strip-shaped portion 61 extending in the Y-axis direction and a side portion 62 that bends and protrudes from the -Y-side end of the strip portion 61 in the +Z direction. The strip portion 61 bends and protrudes from the +Y-side end in the -Z direction, and a side portion 63 is provided at the portion where the end is folded toward the -Y side. A first coil 301, which is elongated in the Z-axis direction, is disposed on the -Y-side surface of the side portion 63. Current flows into the first coil 301 through the strip portion 61. Furthermore, a Hall element 311, serving as a first magnetic sensor, is disposed inside the winding of the first coil 301 on the -Y-side surface of the side portion 63. In the FPC 60, the side portion 63 is fixed to the -Y side (inner side) of the side plate 12 of the housing 10, while the strip portion 61 is fixed along the -X-side edge of the outer sides of the side plate 12 and the main body 13. The first coil 301 and Hall element 311, arranged on the side surface 63 of the FPC 60, face the first magnet 201, arranged on the side plate 32 of the first movable portion 30. The first magnet 201 and the first coil 301 constitute a first driving unit that drives the first movable portion 30 to rotate about the first rotation axis 101 relative to the housing 10, which serves as a fixed portion. Furthermore, the first magnet 201 and the Hall element 311, serving as a first magnetic sensor, constitute a first detecting unit that detects rotational displacement of the first movable portion 30 about the first rotation axis 101. The side surface 62 is electrically connected to the main body of the camera device 8.

[0046] The FPC 70 includes a side portion 71 perpendicular to the X-axis; a side portion 72 fixed to the side portion 62 of the FPC 60; and a strip portion 73 connecting the side portions 71 and 72. A second coil 302, elongated in the Y direction, is arranged on the +X side of the side portion 71. Current flows into the second coil 302 via the strip portion 73. Furthermore, a Hall element 312, serving as a second magnetic sensor, is arranged inside the winding of the second coil 302 on the +X side of the side portion 71. In the FPC 70, the side portion 71 is fixed to the +X side of the side plate 43 of the second movable portion 40. The second coil 302 and Hall element 312 arranged on the side portion 71 of the FPC 70 face the second magnet 202 arranged on the -X side of the side plate 33 of the first movable portion 30. The second magnet 202 and the second coil 302 constitute a second driving unit that drives the second movable portion 40 to rotate about the second rotation axis 102 relative to the first movable portion 30. Furthermore, the second magnet 202 and the Hall element 312, serving as a second magnetic sensor, constitute a second detecting unit that detects rotational displacement of the second movable portion 40 about the second rotation axis 102.

[0047] The strip 73 extends from the side surface 72 in the -Z direction, then bends and changes its direction to the +Y direction, entering the housing 10 from the outside. It then extends from the -X side of the side plate 43 in the +Y direction, the +Z direction, the -Y direction, the -Z direction, and the +Y direction, before finally changing its direction to the +X direction and reaching the +X side of the side plate 43, where it connects to the side surface 71. This spiral arrangement of the strip 73 allows the second movable portion 40 to rotate without being affected by the tension of the FPC 70.

[0048] In this embodiment, when the second end face of the liquid lens cell 50, which serves as an optical element, is tilted about the first rotation axis 101 and / or about the second rotation axis 102, a predetermined current is supplied to the first coil 301 and / or the second coil 302. The predetermined current is a current having a polarity corresponding to the desired tilt direction and a magnitude corresponding to the desired tilt angle about the first rotation axis 101 and / or a current having a polarity corresponding to the desired tilt direction and a magnitude corresponding to the desired tilt angle about the second rotation axis 102. The current is supplied to the first coil 301 via the FPC 60 and to the second coil 302 via the FPC 70. As a result, the first movable portion 30 is driven by the electromagnetic force in the X-axis direction acting between the first magnet 201 and the first coil 301, thereby rotating about the first rotation axis 101. Furthermore, the second movable portion 40 is driven by the electromagnetic force in the Z-axis direction acting between the second magnet 202 and the second coil 302, thereby rotating about the second rotation axis 102. As a result, the second movable portion 40 tilts relative to the housing 10, which serves as the fixed portion, and the second end face of the liquid lens cell 50 tilts in response to this tilt. Furthermore, the Hall element 311 detects the rotational displacement of the first movable portion 30 about the first rotation axis 101 based on the magnetic field received from the first magnet 201, and the Hall element 312 detects the rotational displacement of the second movable portion 40 about the second rotation axis 102 based on the magnetic field received from the second magnet 202. Furthermore, based on the detected value of this rotational displacement, the current flowing through the first coil 301 and / or the second coil 302 is adjusted.

[0049] The above details the structure of an embodiment of the present invention. The optical element driving device 3 of this embodiment includes: a housing 10 serving as a fixed portion; a liquid lens cell 50 serving as an optical element, with a liquid sealed between its first and second opposing end faces, and the first end face fixed to the housing 10; a first movable portion 30 supported by the housing 10 and rotatable about a first rotation axis 101; and a second movable portion 40 supported by the first movable portion 30 and rotatable about a second rotation axis 102 perpendicular to the first rotation axis 101, with the second end face fixed. As a result, the positions of the first and second rotation axes 101, 102, are not misaligned, and thus, even without complex control, the control accuracy of the tilt of the second end face of the liquid lens cell 50 about the first rotation axis 101 and the tilt about the second rotation axis 102 can be improved. In other words, the control accuracy of the propagation direction of the transmitted light through the liquid lens cell 50 is high.

[0050] The first drive unit may be arranged so that the drive force acts in the tangential direction of the circle centered on the first rotating shaft 101 , and the second drive unit may be arranged so that the drive force acts in the tangential direction of the circle centered on the second rotating shaft 102 .

[0051] (Description of labels)

[0052] 2 prism; 2x incident surface; 2z exit surface; 2t reflection surface; 3 optical element driving device; 6 lens body; 7 image sensor; 8 camera device; 9 smart phone; 10 housing; 11, 12, 32, 33, 43 side plate portion; 13 main body portion; 14, 34, 44, 511, 551 through-hole; 20 stage portion; 21 loading portion; 30 first movable portion; 40 second movable portion; 31, 41 flat plate portion; 31a, 41a main body portion; 31b, 41b extension portion; 50 liquid lens unit; 60, 70 FPC; 61, 73 strip portion; 62, 63, 71, 72 side Face; 101, 101a, 101b first rotating axis; 102, 102a, 102b second rotating axis; 111a, 111b, 112a, 112b bearings; 151, 161, 152, 162 wire support parts; 171 first wire spring; 172 second wire spring; 201 first magnet; 202 second magnet; 301 first coil; 302 second coil; 311, 312 Hall elements; 510 first plate; 512a, 512b cutouts; 520 first glass; 530 liquid lens; 540 second glass; 550 second plate; 552 stopper.

Claims

1. An optical element driving device, characterized in that: include: a fixing portion comprising a housing; an optical element having a liquid sealed between a first end face and a second end face facing each other, the first end face being fixed to the fixing portion; a first movable portion supported by the fixed portion and rotatable about a first rotation axis; a second movable portion supported by the first movable portion, rotatable about a second rotation axis orthogonal to the first rotation axis, and fixing the second end surface; a first FPC having a first side portion and a second side portion, and a first strip portion connecting the first side portion and the second side portion, wherein the first side portion is electrically connected to the outside of the device, and the second side portion is fixed to the housing; a second FPC having a third side portion and a fourth side portion, and a second strip portion connecting the third side portion and the fourth side portion, wherein the third side portion is fixed to the second movable portion, and the fourth side portion is fixed to the first side portion; a first driving portion having a first magnet fixed to the first movable portion and a first coil fixed to the second side portion, and driving the first movable portion to rotate about the first rotation axis; as well as The second driving portion includes a second magnet fixed to the first movable portion and a second coil fixed to the third side portion, and drives the second movable portion to rotate around the second rotation axis. The first strip-shaped portion connecting the first side portion and the second side portion to allow current to flow to the first coil is fixed to the housing. The second strip-shaped portion, which connects the third side surface portion and the fourth side surface portion and allows current to flow to the second coil, is provided in a spiral shape.

2. The optical element driving device according to claim 1, wherein include: a first detecting portion fixed to the fixed portion, configured to detect a rotational displacement of the first movable portion around the first rotation axis by detecting a magnetic field generated by the first magnet; as well as The second detecting portion is fixed to the second movable portion and detects the rotational displacement of the second movable portion around the second rotation axis by detecting the magnetic field generated by the second magnet.

3. The optical element driving device according to claim 1, wherein include: a first wire spring connected between the fixed portion and the first movable portion; as well as The second wire spring is connected between the first movable portion and the second movable portion.

4. The optical element driving device according to claim 3, wherein: The first wire spring is provided at a position other than the first rotation axis of the first movable portion, and the second wire spring is provided at a position other than the second rotation axis of the second movable portion.

5. The optical element driving device according to claim 1, wherein: The first rotation axis and the second rotation axis are orthogonal to an axis passing through the center of the first end surface and perpendicular to the first end surface.

6. The optical element driving device according to claim 1, wherein: The first rotation axis and the second rotation axis are at the same height as the second end surface. 7 . A camera device comprising the optical element driving device according to claim 1 .

8. An electronic device comprising the camera device according to claim 7.

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