JP2019128448A - Optical unit with tremor correction function - Google Patents

Abstract

To provide an optical unit with a tremor correction function that enables a power supply system supplying an electric power to first and second motors, and a camera part to be conducted by two systems without providing a connection member connecting a stator of the first motor to a stator of the second motor.SOLUTION: An optical unit 1 with a tremor correction function has: a camera part 3 that has a lens 2 and an image pick-up element 13; a first motor 4 that a stator 50 including a coil 38, and a rotor 21 rotating around a first shaft R1; a supporting body 6 that supports the first motor 4 and the camera part 3; and a second motor 7 that causes the supporting body 6 to rotate around a second shaft R2 orthogonal to the first shaft R1. The rotor 21 is fixed to the supporting body 6, and the camera part 3 is fixed to the stator 50. The camera part 3 and the stator 50 serve a relatively rotating movable body 60 with respect to the supporting body 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an optical unit with a shake correction function that performs shake correction of a captured image by swinging and rotating a camera unit having an optical element and an image pickup element.

  Some optical units that are mounted on a moving vehicle such as a traveling vehicle or a drone and perform imaging have a shake correction function that corrects shaking of a captured image. In such an optical unit with shake correction function, the camera unit is rotated about the optical axis to perform rolling correction, and rotated about an axis orthogonal to the first axis to perform pitching correction or yawing (horizontal movement). Shake) Make corrections.

  Patent Document 1 describes an optical unit that rotates a camera unit around a first axis and a second axis that are orthogonal to each other. The optical unit of the document has a first motor that rotates the camera unit around the first axis, and a second motor that rotates the camera unit around the second axis. The first motor comprises a rotor comprising a magnet and a stator comprising a coil. The second motor comprises a rotor with a magnet and a stator with a coil. The camera unit is connected to the rotor of the first motor. The stator of the first motor is fixed to the rotor of the second motor via a connection frame. The stator of the second motor is fixed to the object on which the optical unit is mounted. When the first motor is driven, the camera unit rotates about the first axis. When the second motor is driven, the first motor and the camera unit rotate around the second axis. That is, when the second motor is driven, the stator of the second motor, the first motor, and the camera unit relatively rotate around the second axis.

Unexamined-Japanese-Patent No. 2017-508998

  In the optical unit of Patent Document 1, it is necessary to supply power to the first stator (coil) of the first motor, the second stator (coil) of the second motor, and the image sensor of the camera unit. Here, when feeders are connected to each of the first stator of the first motor, the second stator of the second motor, and the camera unit, there are three power supply systems, so the routing of feeders during manufacturing is complicated. There is a problem of becoming

  For such a problem, the first stator of the first motor and the second stator of the second motor are electrically connected by a connecting member such as a flexible printed circuit board, and the stator of the first motor and the second stator. It is conceivable to connect a feeder to only one of the motor stators. If it does in this way, electric power can be supplied to the stator of one motor via a feeder. Power is supplied to the stator of the other motor via a feeder and a connection member (flexible printed circuit board). The camera unit can be directly supplied with power by connecting another power supply line. As a result, since the power supply system of the optical unit becomes two systems, the management of the feeders becomes easy.

  However, in the optical unit of Patent Document 1, when the second motor is driven, the stator of the first motor and the stator of the second motor rotate relative to each other. Therefore, when the stator of the first motor and the stator of the second motor are connected by the connecting member, there is a possibility that the relative rotation between the stator of the first motor and the stator of the second motor is hindered by the connecting member. .

  In view of the above problems, an object of the present invention is to provide a first motor, a second motor, and a camera unit without electrically connecting the stator of the first motor and the stator of the second motor that rotate relative to each other. It is an object of the present invention to provide an optical unit with a shake correction function capable of providing two power supply systems.

  In order to solve the above problems, an optical unit with a shake correction function according to the present invention includes a camera unit having an optical element and an image pickup element, a stator having a coil, and a first motor having a rotor rotating around a first axis. A support for supporting the first motor and the camera unit, and a second motor for rotating the support around a second axis on a plane perpendicular to the first axis, The rotor is fixed to the support, the camera unit is fixed to the stator, and the camera unit and the stator constitute a movable body that rotates relative to the support. .

  According to the present invention, since the camera unit is fixed to the stator of the first motor, the stator of the first motor and the camera unit do not rotate relative to each other. Therefore, the camera unit and the stator of the first motor can be electrically connected by using the connecting member without considering the relative rotation. Therefore, if the camera unit and the stator of the first motor are electrically connected by a connecting member, and a power supply line is connected to one of the camera unit and the stator of the first motor, the stator of the camera unit and the first motor is connected. Power can be supplied to one side via a feeder line. In addition, power can be supplied to the other of the camera unit and the stator of the first motor via the feed line and the connection member. Then, if another power supply line is connected to the second motor and power is directly supplied, the power supply system can be divided into two systems. In addition, since it is not necessary to provide a connection member between the stator of the first motor and the stator of the second motor that rotate relative to each other in this way, the relative rotation is not hindered by the connection member.

  In the present invention, it is desirable to provide a connection member that electrically connects the camera unit and the stator. Since the camera unit and the stator of the first motor do not rotate relative to each other, it is easy to electrically connect between them by a connection member such as a substrate or a connector.

  In the present invention, the first axis may be parallel to the optical axis of the optical element or coincide with the optical axis. In this way, it is possible to perform rolling correction that rotates the camera unit around the first axis along the optical axis by driving the first motor. On the other hand, with the rotation of the second motor, the camera unit can be rotated around the second axis on a plane perpendicular to the optical axis to perform pitching (pitch) correction or yawing (rolling) correction.

  In the present invention, the camera unit includes a fixing member for fixing the camera unit to the stator, and the stator includes a stator substrate on which the coil is fixed orthogonal to the first axis, and the camera unit includes the A camera substrate having a substrate surface orthogonal to the optical axis of the optical element and having the imaging device mounted on the substrate surface, the camera substrate being arranged in parallel with the stator substrate with a gap therebetween, and the fixing member It can be fixed to the said stator board | substrate via. In this way, it becomes easy to fix the camera unit to the stator of the first motor. In this case, since a gap is provided between the camera substrate and the stator substrate, it is easy to release heat from the image sensor and heat from the coil.

  In the present invention, the coil may be positioned between the stator substrate and the camera substrate in a direction along the first axis. In this way, since the coil can be arranged in the gap provided between the camera substrate and the stator substrate, the camera unit and the first motor can be reduced in size in the optical axis direction (direction along the first axis).

  In the present invention, the coil may be located on the opposite side of the stator substrate from the camera substrate in a direction along the first axis. In this case, since no coil or the like exists between the stator substrate and the camera substrate, the fixing operation for fixing the stator substrate and the camera substrate is easy at the time of manufacture.

  In the present invention, the connection member may include a connector for connecting the stator substrate and the camera substrate, and the connector may also serve as the fixing member. In this way, the number of parts can be reduced.

  In the present invention, the camera unit and the first motor are arranged in the optical axis direction, and the support is located on the opposite side of the camera unit of the first motor in the optical axis direction. A bottom plate portion extending in an orthogonal direction orthogonal to the optical axis, and a pair of side plate portions extending from both end portions of the bottom plate portion in the orthogonal direction toward the camera portion, and the rotor includes It is fixed to the bottom plate, the pair of side plates are positioned on both sides of the first motor in the orthogonal direction, and the second shaft passes through the pair of side plates. it can. In this way, it is easy to fix the rotor to the support. In addition, the support can surround and protect the first motor from three directions.

  In the present invention, the second axis may be parallel to the optical axis of the optical element or coincide with the optical axis. According to this configuration, the camera unit is rotated about the second axis on a plane perpendicular to the optical axis by driving the first motor to perform pitching correction or yawing correction. it can. In addition, by driving the second motor, rolling correction can be performed by rotating the camera unit in parallel with the optical axis or around a first axis that coincides with the optical axis.

  In the present invention, the camera includes a fixing member for fixing the camera unit to the stator, the stator includes a stator substrate extending along the optical axis and having the coil fixed thereto, and the camera unit includes the stator substrate A camera substrate having a substrate surface perpendicular to the optical axis and having the imaging device mounted along the substrate surface, the camera substrate being disposed perpendicular to the stator substrate, and the stator being interposed via the fixing member It can be fixed to the substrate. In this way, it is easy to make the first axis orthogonal to the optical axis. Further, since the camera substrate and the stator substrate are orthogonal to each other, the heat from the imaging element and the heat from the coil are easily released.

  In the present invention, the connection member may include a connector for connecting the stator substrate and the camera substrate, and the connector may also serve as the fixing member. In this way, the number of parts can be reduced.

  In the present invention, the camera unit and the first motor are arranged in the optical axis direction, and the support is located on the opposite side of the camera unit of the first motor in the optical axis direction. A bottom plate portion extending in an orthogonal direction orthogonal to the optical axis, and a pair of side plate portions extending from both end portions of the bottom plate portion in the orthogonal direction toward the camera portion, and the rotor includes It is located between the pair of side plate portions and is fixed to the pair of side plate portions, the first shaft passes through the pair of side plate portions, and the second shaft passes through the bottom plate portion. Can. In this way, it is easy to fix the rotor to the support. In addition, the support can surround and protect the first motor from three directions.

In the present invention, the camera unit and a single cable connected to one of the first motor are provided, and supply of power to the camera unit, supply of power to the first motor, and the imaging device It is desirable to transmit the video signal to the outside via the single cable. If it does in this way, electric power can be supplied to one of a camera part and the stator of a 1st motor via a feeder. Moreover, electric power can be supplied to the other of the camera unit and the stator of the first motor via a feeder line and a connecting member.

  In the present invention, the cable is connected to the camera unit, and the camera unit includes a communication control unit for transmitting a video signal via the cable, and the communication control unit transmits the video signal. It is desirable to have a serializer that transmits as a serial signal. In this way, serial communication can be performed between the camera substrate and an external device to which the cable is connected.

  In the present invention, it is desirable that the center of gravity of the movable body overlaps the first axis. In this case, the required torque for maintaining the posture of the movable body may be a torque larger than mechanical loss (so-called axis loss) such as friction during rotation. Therefore, when correcting the tilt of the movable body, it is not necessary to use a motor with a large torque as the first motor, and the posture of the movable body can be maintained with a small motor.

  In the present invention, the camera unit, the first motor, the support, and the rotor of the second motor constitute a second movable body that rotates relative to the stator of the second motor, and the second movable body It is desirable that the center of gravity of the movable body overlap the second axis. If it does in this way, the torque required for maintaining the attitude | position of a 2nd movable body should just be a torque larger than mechanical losses (so-called shaft loss), such as friction at the time of rotation. Therefore, when correcting the inclination of the second movable body, it is not necessary to use a motor with large torque as the second motor, and the posture of the support that supports the camera unit and the first motor can be maintained with a small motor.

  According to the present invention, the power supply system to the first motor, the second motor, and the camera unit can be divided into two systems. Therefore, the handling of the feeder can be facilitated at the time of manufacture. Moreover, it is not necessary to provide the connection member which electrically connects these between the stator of the 1st motor and the stator of a 2nd motor which rotate relatively. Thus, the relative rotation of the connecting members is not impeded.

FIG. 2 is a perspective view of an optical unit with a shake correction function to which the present invention is applied. FIG. 5 is an exploded perspective view of an optical unit with a shake correction function. FIG. 2 is a cross-sectional view of an optical unit with a shake correction function. It is an explanatory view of a control system and a power supply system of a movable body. FIG. 10 is a cross-sectional view of an optical unit with a shake correction function of Modification Example 1; FIG. 10 is a cross-sectional view of an optical unit with a shake correction function of Modification 2;

  Hereinafter, an embodiment of an optical unit with a shake correction function to which the present invention is applied will be described with reference to the drawings.

  FIG. 1 is a perspective view of an optical unit with a shake correction function to which the present invention is applied. FIG. 2 is an exploded perspective view of the optical unit with shake correction function. FIG. 3 is a cross-sectional view of an optical unit with a shake correction function. FIG. 4 is an explanatory view of a control system and a power supply system of the movable body. An optical unit 1 with a shake correction function to which the present invention is applied is mounted on a moving body such as a traveling vehicle or a flying body and performs imaging.

As shown in FIG. 1, an optical unit 1 with a shake correction function includes a camera unit 3 having a lens 2 (optical element), a first motor 4 for rotating the camera unit 3, and the camera unit 3 as a first motor 4. A fixing member 5 to be fixed, a support 6 for supporting the camera unit 3 and the first motor 4, and a second motor 7 for rotating the support 6 are provided. The camera unit 3 and the first motor 4 are arranged in the direction of the optical axis L of the lens 2 of the camera unit 3. The support 6 is swingably supported by a moving body on which the optical unit 1 with shake correction function is mounted. The second motor 7 is fixed to the moving body. In the following description, in the optical axis L direction of the lens 2 of the camera unit 3, the side where the camera unit 3 is located is the front L1 (subject side), and the side where the first motor 4 is located is the rear L2 (anti-subject side). And

(Camera part)
As shown in FIG. 2, the camera unit 3 includes a lens 2, a holder 11 for holding the lens 2, and a camera substrate 12 fixed to the rear end of the holder 11. The camera substrate 12 is orthogonal to the optical axis L. As shown in FIG. 3, on the substrate surface 12 a facing the front L 1 in the camera substrate 12, the imaging device 13 is mounted along the substrate surface 12 a. The imaging device 13 is at a position overlapping the optical axis L inside the holder 11. Therefore, the light passing through the lens 2 is incident on the imaging device 13.

  An imaging control unit 14 (see FIG. 4) for controlling imaging by the imaging element 13 is mounted on the substrate surface 12a. A cable connector 15 for connecting a cable is provided on the substrate surface 12a. As shown in FIG. 1, one cable 16 is connected to the cable connector 15. As the cable 16, a coaxial cable or a twisted pair cable is used. The end of the cable 16 opposite to the camera substrate 12 is connected to the host device. The upper device is a control unit of a moving object such as a vehicle or a flying object on which the optical unit 1 with a shake correcting function of the present embodiment is mounted. A camera side connector 17 (connector) is provided on the back surface 12b of the camera substrate 12 facing the rear L2. The camera side connector 17 projects from the camera substrate 12 to the rear L2.

(First motor)
The first motor 4 is a three-phase motor. As shown in FIG. 2, the first motor 4 is arranged in a posture in which the rotation shaft 22 of the rotor 21 coincides with the optical axis L. The first motor 4 includes a motor main body 25, a stator substrate 26, and a motor control unit 27 (see FIG. 4). The motor body 25 is supported on the stator substrate 26. The stator substrate 26 is disposed in parallel with the camera substrate 12 with a gap S at the rear L2 of the camera substrate 12. Accordingly, the stator substrate 26 extends in the direction orthogonal to the optical axis L.

  The motor control unit 27 is mounted on the substrate surface 12a facing the front L1 in the stator substrate 26. The motor control unit 27 drives the motor main body 25 based on a control signal from the host device. The control signal from the host device is based on the output of an inertial sensor that is attached to a moving body on which the optical unit 1 with shake correction function is mounted and detects a change in posture of the moving body.

  As shown in FIG. 3, the motor body 25 is held by a cylindrical sleeve 31 fixed to a motor fixing hole 28 formed in the stator substrate 26, and the front end and the rear end of the sleeve 31 in the optical axis L direction. A first bearing 32 and a second bearing 33; a rotor portion 34 rotatably supported by the first bearing 32 and the second bearing 33; and a stator portion 35 fixed to the stator substrate 26 via the sleeve 31. Prepare. The stator portion 35 includes an annular stator core 37 provided with a plurality of salient poles radially projecting about the optical axis L, and a coil 38 wound around each salient pole of the stator core 37. The stator portion 35 is configured in the front L 1 of the stator substrate 26. Therefore, the stator portion 35 (the coil 38 and the stator core 37) is located between the stator substrate 26 and the camera substrate 12 in the L direction.

  The rotor unit 34 includes a rotation shaft 22 extending in the optical axis L direction, a rotor case 41 fixed to the rotation shaft 22, and a magnet 42 fixed to the rotor case 41. The rotating shaft 22 is rotatably supported by a first bearing 32 and a second bearing 33 about a first axis R1. The rotating shaft 22 projects from the sleeve 31 to the rear L2. Further, the rotary shaft 22 penetrates the stator substrate 26 in the sleeve 31 and protrudes rearward L 2 of the stator substrate 26. The rotor case 41 is a cup-shaped member including a circular plate portion 44 perpendicular to the optical axis L, and a cylindrical portion 45 extending from the outer peripheral edge of the circular plate portion 44 toward the stator substrate 26 side (rear L2). It is. The magnet 42 is fixed to the inner peripheral surface of the cylindrical portion 45.

  A motor side connector 47 is provided on the substrate surface 26 a of the stator substrate 26. The motor side connector 47 projects from the stator substrate 26 to the front L1. The motor side connector 47 is detachably connected to the camera side connector 17. The motor-side connector 47 and the camera-side connector 17 are connectors 49 (connection members) that electrically connect the stator substrate 26 and the camera substrate 12.

  As shown in FIG. 3, the camera substrate 12 is fixed to the stator substrate 26 via the fixing member 5. The fixing member 5 includes two columnar members having a cylindrical shape, and a connector 49 (a motor side connector 47 and a camera side connector 17). That is, the connector 49 doubles as the fixing member 5. In a state where the camera substrate 12 and the stator substrate 26 are fixed, the axis (the first axis R1) of the rotation shaft 22 of the rotor 21 coincides with the optical axis L.

  Here, the sleeve 31, the stator portion 35, the stator substrate 26, and the motor-side connector 47 of the motor body 25 are the stator 50 of the first motor 4. The rotor portion 34 of the motor main body 25 is a rotor 21 of the first motor 4.

(Support)
As shown in FIG. 2, the support 6 includes a bottom plate portion 52 extending in an orthogonal direction orthogonal to the optical axis L, and a pair of side plate portions 53 protruding toward the front L1 from both ends of the bottom plate portion 52 in the orthogonal direction. 54. Each side plate portion 53, 54 is provided with a shaft portion 55, 56 projecting from the central portion thereof in the direction opposite to the bottom plate portion 52 in the orthogonal direction. The shaft portion 55 of one side plate portion 53 and the shaft portion 56 of the other side plate portion 54 are coaxial. The axis of the shaft 55 of one side plate 53 and the shaft 56 of the other side plate 54 is a second axis R2 orthogonal to the first axis R1.

  A rotation shaft fixing hole 58 for fixing the rotation shaft 22 of the first motor 4 is provided in a central portion of the bottom plate portion 52. The first motor 4 is supported by the bottom plate portion 52 in a state where the rear end portion of the rotary shaft 22 is passed through the rotary shaft fixing hole 58. As a result, the first axis R <b> 1 which is the rotation center line of the rotor 21 of the first motor 4 passes through the bottom plate portion 52. When the rotating shaft 22 is fixed to the bottom plate portion 52, the pair of side plate portions 53 and 54 of the support 6 are positioned on both sides of the first motor 4. In addition, the bottom plate portion 52 of the support 6 is located at the rear L <b> 2 of the first motor 4. Therefore, the support 6 protects the first motor 4 from the two directions of the second axis R2 and the three directions of the rear L2.

Here, in a state where the camera unit 3 and the stator 50 of the first motor 4 are integrated (with the camera substrate 12 and the stator substrate 26 fixed), the rotating shaft 22 of the first motor 4 is a support. When fixed to 6, the stator 50 and the camera unit 3 of the first motor 4 constitute a movable body 60 that rotates relative to the support 6 about the first axis R1. That is, when power is supplied to the coil 38 of the first motor 4 to rotate the rotor 21, the stator 50 of the first motor 4 and the camera unit 3 with respect to the support 6 have a first axis R1 coinciding with the optical axis L Rotate around. The movable body 60 is composed of all members that rotate integrally with the stator 50 of the first motor 4. That is, the movable body 60 includes the stator 50 of the first motor 4, the camera unit 3, the fixed member 5, and the connector 4.
9 is included. The center of gravity G1 of the movable body 60 is located on the first axis R1.

  When the optical unit 1 with shake correction function is mounted on the movable body, the support 6 rotatably supports the pair of shaft portions 55 and 56 on the movable body. Thus, the support 6 and the movable body 60 are supported by the movable body so as to be rotatable about the second axis R2. In this example, when the support 6 is supported by the movable body, the second axis R2 extends in the horizontal direction.

(Second motor)
The second motor 7 is for rotating the support 6 around a second axis R2 orthogonal to the optical axis L. The second motor 7 includes a motor main body 65 and a rotary shaft 67 projecting from the motor main body 65. The motor main body 65 includes a rotor portion 68 including a rotation shaft 67 and a stator portion 70 located on the outer peripheral side of the rotor portion 68 therein. The rotation shaft 67 is disposed coaxially with the second axis R2.

  The rotor portion 68 includes an annular magnet 71 disposed so as to surround the rotation shaft 67. On the outer peripheral surface of the magnet 71, N poles and S poles are alternately magnetized in the circumferential direction. The stator unit 70 includes an annular stator core 73 positioned on the outer peripheral side of the rotor unit 68 and a plurality of coils 74 wound around the stator core 73. The stator core 73 includes an annular portion and a plurality of salient pole portions projecting inward in the radial direction from the annular portion, and the plurality of coils 74 are wound around the respective salient pole portions. The inner peripheral side end face of the salient pole part faces the outer peripheral face of the magnet 71 of the rotor part 68 with a slight gap.

  The second motor 7 includes a motor control unit 75 similar to that of the first motor 4. The motor control unit 75 controls power supply to the plurality of coils 74 based on a control signal from the host device. The control signal from the host device is based on the output of an inertial sensor that is attached to a moving body on which the optical unit 1 with shake correction function is mounted and detects a change in posture of the moving body. As the second motor 7, a motor having the same structure as that of the first motor 4 can be used.

  Here, the stator unit 70 and the motor control unit 75 of the motor main body 65 are the stator 80 of the second motor 7. The rotor 81 of the second motor 7 is a rotor portion 68 of the motor main body 65.

  The rotation shaft 67 of the second motor 7 is coaxially connected to the other shaft portion 56 of the support 6. The second motor 7 is fixed to a moving body on which the optical unit 1 with shake correction function is mounted. Accordingly, when the rotor 81 is rotated by supplying power to the coil 74 of the second motor 7, the support 6 rotates about the second axis R <b> 2 integrally with the rotor 81. Here, the camera unit 3, the fixing member 5, the first motor 4, the support 6, the connector 49, and the rotor 81 of the second motor 7 rotate relative to the stator 80 of the second motor 7. The movable body 83 is configured. The second movable body 83 is all members that rotate integrally with the rotor 81 of the second motor 7. The center of gravity G2 of the second movable body 83 is located on the second axis R2.

(Movable body control system and power supply system)
FIG. 4 is an explanatory view of a control system and a power supply system of the movable body 60. As shown in FIG. As shown in FIG. 1, a single cable 16 is connected to the camera unit 3 via a cable connector 15. The end of the cable 16 opposite to the camera unit 3 is connected to the host device.

As shown in FIG. 4, the control system of the camera unit 3 includes an imaging control unit 14 including an imaging element 13, a communication control unit 85, and a power supply unit 86. The communication control unit 85 is connected between the imaging control unit 14 and the cable connector 15. The communication control unit 85 includes a serializer 87. The video signal output from the imaging control unit 14 is converted by the serializer 87 into a serial signal. Then, the video signal (serial signal) is transmitted to the upper apparatus via the cable 16 by the communication control unit 85. On the other hand, the host device includes the deserializer in its communication control unit. As a result, serial communication called Serdes is performed between the communication control unit 85 and the host device.

  Here, power and control signals are supplied to the camera unit 3 from the side of the host device via the cable 16. The power supplied via the cable 16 is high frequency AC power, which is superimposed on the control signal and transmitted. The power supply unit 86 extracts DC power from the AC power transmitted via the cable 16 and supplies the DC power to the imaging control unit 14. Further, the power supply unit 86 supplies DC power extracted from AC power to the first motor 4 via the camera side connector 17 and the motor side connector 47. The direct current power supplied to the first motor 4 is supplied to the control unit 91 of the motor control unit 27 through the power supply circuit 89, and is also supplied to the coil 38 through the driver circuits 92u, 92v, 92w.

  On the other hand, a control signal (serial signal) transmitted via the cable 16 is input from the communication control unit 85 to the imaging control unit 14. Further, the control signal transmitted through the cable 16 is transmitted from the communication control unit 85 through the I2C (Inter-Integrated Circuit) serial communication through the camera connector 17 and the motor connector 47 to the first motor 4. Is transmitted to the motor control unit 27 of FIG.

  The motor control unit 27 includes a control unit 91 that incorporates an MPU, DSP, and the like. A control signal from the host device is input to the control unit 91. Further, power is supplied to the control unit 91 via the power supply unit 86 and the power supply circuit 89 of the camera unit 3. On the output side of the control unit 91, driver circuits 92u, 92v, and 92w that control energization to the U-phase, V-phase, and W-phase coils 38 are connected. A shunt resistor 93 is connected between the driver circuits 92u, 92v, 92w and the ground GND. The side of the shunt resistor 93 opposite to the ground GND is connected to the control unit 91 via the amplifier circuit 94.

  Here, the stator 50 (stator substrate 26) of the first motor 4 includes a first hall element 95 and a second hall element 96 arranged at different angular positions around the first axis R1, and the first hall element. The signals Ha and Hb output from the 95 and the second Hall element 96 are amplified by the amplifier circuits 97 and 98 and then input to the control unit 91.

  The control unit 91 divides the signals Ha and Hb of the first hall element 95 and the second hall element 96 by a coefficient corresponding to the maximum amplitude and performs a process of converting the normalized data into normalized data. The storage unit 102 for storing the reference data and the like, the position detection unit 103 for detecting the rotational position of the rotor 21 using the reference data stored in the storage unit 102, and the calibration for creating the reference data By comparing the rotational position detected by the calibration execution unit 104 and the position detection unit 103 with the target position, control signals (PWM signals) for causing the rotational position to coincide with the target position are sent to the driver circuits 92u, 92v, 92w. A feedback control unit 105 is provided.

  The motor control unit 27 supplies power to the coil 38 based on the control signal from the host device to rotate the rotor 21. As a result, the first motor 4 drives the movable body 60 (the stator 50 and the camera unit 3 of the first motor 4) around the first axis R1 and rolls to correct the posture of the camera unit 3 around the optical axis L. Make corrections.

Similarly to the motor control unit 27 of the first motor 4, the motor control unit 75 of the second motor 7 includes a control unit and a driver circuit. As shown in FIG. 1, the power supply line 111 from the above device is directly connected to the second motor 7. The second motor 7 is connected to a signal line 112 that enables communication between the host device and the motor control unit 75. In this example, the second motor 7 and the host device are connected by a plurality of signal lines 112. The electric power supplied to the second motor 7 via the feed line 111 is supplied to the control unit of the motor control unit 75 and is also supplied to the coil 74 via the driver circuit of the motor control unit 75. A signal transmitted from the host device to the second motor 7 via the plurality of signal lines 112 is a parallel signal. The motor control unit 75 of the second motor 7 supplies power to the coil 74 based on a control signal from the host device and rotates the rotor 81. Thereby, the second motor 7 drives the support 6 around the second axis R2, and performs pitching correction to correct the attitude of the camera unit 3 around the horizontal second axis R2. Similar to the motor control unit 27 of the first motor 4, the motor control unit 75 may be configured to receive a serial signal from the host device.

(Action effect)
According to this embodiment, since the camera unit 3 is fixed to the stator 50 of the first motor 4, the stator 50 of the first motor 4 and the camera unit 3 do not rotate relative to each other. Therefore, the camera unit 3 and the stator 50 of the first motor 4 can be electrically connected using the connector 49 (the camera side connector 17 and the motor side connector 47). Therefore, according to the optical unit 1 with shake correction function of the present example in which the camera unit 3 and the stator 50 of the first motor 4 are electrically connected by the connector 49 and the cable 16 (feed line) is connected to the camera unit 3. The camera unit 3 can be supplied with power via the cable 16 (feed line). Further, electric power can be supplied to the stator 50 of the first motor 4 via the cable 16 (feed line) and the connector 49. On the other hand, since another power supply line 111 is connected to the second motor 7 and power is directly supplied, the power supply system can be made into two systems.

  Here, according to the present embodiment, between the stator 50 of the first motor 4 and the stator 80 of the second motor 7 that rotate relative to each other, it is necessary to provide a connecting member such as a flexible printed board that electrically connects these. Absent. Thus, the connecting members do not inhibit their relative rotation. Furthermore, it is not necessary to provide a connecting member such as a flexible printed circuit board or the like, which electrically connects between the stator 80 and the camera unit 3 of the second motor 7 which rotates relative to each other. Thus, the relative rotation of the connecting members is not hindered.

  In this example, the first axis R1 coincides with the optical axis L, and the second axis R2 is orthogonal to the optical axis L. Therefore, it is possible to perform rolling correction that causes the camera unit 3 to rotate around the optical axis L (around the first axis R1) by driving the first motor 4. On the other hand, the rotation of the second motor 7 makes it possible to perform pitching (pitch) correction by rotating the camera unit 3 around a second axis R2 orthogonal to the optical axis L. When the support 6 is supported by the moving body, yaw (rolling) correction can be performed by the rotation of the second motor 7 if the second axis R2 extends in the vertical direction.

  Furthermore, in the present embodiment, the camera substrate 12 is disposed in parallel with the stator substrate 26 with a gap S therebetween. Therefore, the heat transmitted from the image sensor 13 to the camera substrate 12 and the heat transmitted from the coil 38 and the motor control unit 27 to the stator substrate 26 are easily released to the outside.

  In this example, the coil 38 of the first motor 4 is located between the stator substrate 26 and the camera substrate 12 in the direction along the first axis R1. Thus, the coil 38 can be disposed in the gap S provided between the camera substrate 12 and the stator substrate 26, so that the camera unit 3 and the first motor 4 can be miniaturized in the optical axis L direction.

Furthermore, in the present embodiment, supply of power to the stator substrate 26, supply of power to the camera substrate 12, transmission of video signals from the imaging device 13 to the outside, control signals to the camera unit 3 and the first motor 4 Is supplied via a single cable 16. Thereby, wiring becomes simple.

  The camera unit 3 further includes a communication control unit 85 for transmitting a video signal through the cable 16, and the communication control unit 85 includes a serializer 87 for transmitting the video signal as a serial signal. As a result, the camera unit 3 and the first motor 4 can perform serial communication called sarde with the host apparatus.

  Furthermore, in this example, the center of gravity G1 of the movable body 60 overlaps the first axis R1 line. Therefore, the necessary torque for maintaining the posture of the movable body 60 may be a torque larger than mechanical loss (so-called shaft loss) such as friction during rotation. Therefore, when correcting the tilt of the movable body 60, it is not necessary to use a motor with a large torque as the first motor 4, and the attitude of the movable body 60 can be maintained by a small motor.

  The center of gravity G2 of the second movable body 83 (the center of gravity of the rotor 81 of the camera unit 3, the fixed member 5, the first motor 4, the support body 6, and the second motor 7) overlaps with the second axis R2. Therefore, the necessary torque for maintaining the posture of the second movable body 83 may be a torque larger than a mechanical loss such as friction during rotation. Therefore, when correcting the inclination of the second movable body 83, it is not necessary to use a motor with a large torque as the second motor 7, and the posture of the second movable body 83 can be maintained with a small motor.

(Modification 1)
FIG. 5 is a cross-sectional view of an optical unit with a shake correction function of the first modification. In the optical unit 1A with the shake correction function of this embodiment, the first motor 4 of the optical unit 1 with the shake correction function is disposed so as to be reversed in the optical axis L direction. Moreover, in the 1st motor 4 of the reversed attitude | position, the rotating shaft 22 is protruded from the rotor case 41 to back L2. The camera substrate 12 is fixed to the stator substrate 26 via a plurality of columnar fixing members 5. The camera unit 3 and the fixing member 5 are electrically connected by a flexible printed board 115. The stator 50 and the camera unit 3 of the first motor 4 are a movable body 60 that rotates relative to the support body 6 about the first axis R1. The center of gravity G1 of the movable body 60 is located on the first axis R1. The camera unit 3, the fixed member 5, the first motor 4, the support 6, and the rotor 81 of the second motor 7 are a second movable body 83 that rotates relative to the stator 80 of the second motor. . The center of gravity G2 of the second movable body 83 is located on the second axis R2. The other configuration is the same as that of the above-described optical unit with shake correction function 1A, so the corresponding parts will be denoted by the same reference numerals and the description thereof will be omitted.

  Also in this example, the camera unit 3 and the stator 50 of the first motor 4 can be electrically connected using the flexible printed circuit board 115 without considering the relative rotation. Therefore, the camera unit 3 and the stator 50 of the first motor 4 are electrically connected by the flexible printed circuit board 115, and the cable 16 (feed line) is connected to the camera unit 3. Power can be supplied via the (feed line). Further, electric power can be supplied to the stator 50 of the first motor 4 via the cable 16 (feed line) and the flexible printed circuit board 115. On the other hand, since another power supply line 111 is connected to the second motor 7 and power is directly supplied, the power supply system can be made into two systems.

  Further, according to this embodiment, it is possible to obtain the same operation and effect as the above-described optical unit 1 with shake correction function. Furthermore, according to this example, since the stator portion 35 (coil 38) or the like does not exist between the stator substrate 26 and the camera substrate 12, a fixing operation for fixing the stator substrate 26 and the camera substrate 12 is easy.

  The camera board 12 is provided with the camera side connector 17 protruding to the rear L2, the stator board 26 is provided with the motor side connector 47 protruding to the front L1, and the camera side connector 17 and the motor side connector 47 are connected. The camera substrate 12 and the stator substrate 26 may be electrically connected. In this case, the flexible printed circuit board 115 can be omitted. In this case, the connector 49 (camera side connector 17 and motor side connector 47) that electrically connects the camera substrate 12 and the stator substrate 26 is used as the fixing member 5 that fixes the camera substrate 12 to the stator substrate 26. It can also be used.

  Here, in the optical units 1 and 1A with the shake correction function, the rotation axis 22 of the rotor 21 of the first motor 4 coincides with the optical axis L, but the rotation axis 22 may be parallel to the optical axis L. That is, the first axis R1 may be parallel to the optical axis L. In the optical units 1 and 1A with the shake correction function, the rotation shaft 67 of the second motor 7 is orthogonal to the optical axis L, but the rotation shaft 67 of the second motor 7 is perpendicular to the optical axis L. It only needs to be on a plane and does not have to be orthogonal to the optical axis L. That is, the second axis R2 only needs to be on a plane perpendicular to the first axis R1, and may be separated from the optical axis L and the first axis R1. In this case, it is possible to perform rolling correction in which the camera unit 3 is rotated around a first axis R1 parallel to the optical axis L by driving the first motor 4. Further, the rotation of the second motor 7 can rotate the camera unit 3 around the second axis R2 located on a plane perpendicular to the optical axis L to perform pitching correction or yawing correction.

(Modification 2)
FIG. 6 is a cross-sectional view of an optical unit with a shake correction function of the second modification. The arrangement of the first motor 4, the arrangement of the second motor 7, and the shape of the support member in the optical unit 1B with shake correction function of this example are different from the above-described optical unit 1B with shake correction function. Note that the optical unit 1B with shake correction function of Modification 2 has a configuration corresponding to that of the optical units 1 and 1A with shake correction function, and therefore, the corresponding components are denoted by the same reference numerals and description thereof is omitted. To do.

  As shown in FIG. 6, in this example, the first axis R <b> 1 that is the rotation shaft 22 of the rotor 21 of the first motor 4 extends in a direction orthogonal to the optical axis L of the camera unit 3. The second axis R2 that is the rotation axis 67 of the rotor 81 of the second motor 7 coincides with the optical axis L. The rotary shaft 22 of the first motor 4 protrudes from the sleeve 31 and also protrudes from the rotor case 41. Further, the stator substrate 26 constituting the stator 50 of the first motor 4 is disposed perpendicularly to the camera substrate 12 of the camera unit 3. That is, the camera substrate 12 is fixed vertically to the stator substrate 26 by the fixing member 5.

  Here, the camera substrate 12 includes a camera-side connector 17 that protrudes rearward L2. The stator substrate 26 includes a motor-side connector 47 projecting in the direction of the second axis R2. The camera substrate 12 and the stator substrate 26 are electrically connected by connecting the camera connector 17 and the motor connector 47. The camera side connector 17 and the motor side connector 47 are also used as the fixing member 5.

  The support 6 includes a bottom plate portion 52 that extends in an orthogonal direction orthogonal to the optical axis L, and a pair of side plate portions 53 and 54 that protrude from both ends of the bottom plate portion 52 in the orthogonal direction toward the front L1. At the central portion of the bottom plate portion 52, a shaft portion 55 coaxial with the optical axis L and protruding rearward L2 is provided. A rotation shaft fixing hole 58 for fixing both end portions of the rotation shaft 22 of the first motor 4 is provided in the central portion of each side plate portion 53, 54. In the rotor 21 of the first motor 4, one end portion of the rotation shaft 22 protruding from the sleeve 31 is fixed to the side plate portion 53 in a state of passing through the rotation shaft fixing hole 58 of the side plate portion 53. In the rotor 21 of the first motor 4, the other end portion of the rotating shaft 22 protruding from the rotor case 41 is fixed to the side plate portion 54 in a state of passing through the rotating shaft fixing hole 58 of the side plate portion 54. As a result, the first axis R <b> 1, which is the rotation center line of the rotor 21 of the first motor 4, passes through the pair of side plate portions 53 and 54.

  When the rotation shaft 22 is fixed to the pair of side plate portions 53, 54, the pair of side plate portions 53, 54 of the support 6 are positioned on both sides in the first axis R1 direction (orthogonal direction) of the first motor 4. In addition, the bottom plate portion 52 of the support 6 is located behind the first motor 4. Accordingly, the support 6 protects the first motor 4 from both sides in the direction of the second axis R2 and the rear L2.

  Here, in a state in which the camera unit 3 and the stator 50 of the first motor 4 are integrated (in a state where the camera substrate 12 and the stator substrate 26 are fixed), the rotation shaft 22 of the first motor 4 (rotor 21 Is fixed to the support 6, the stator 50 and the camera unit 3 of the first motor 4 become a movable body 60 that rotates relative to the support 6 around the first axis R 1. That is, when the rotor 21 is rotated by supplying power to the coil 38 of the first motor 4, the stator 50 and the camera unit 3 of the first motor 4 with respect to the support 6 are in the first axis R 1 orthogonal to the optical axis L. Rotate around. The center of gravity G1 of the movable body 60 (the camera unit 3, the fixed member 5, and the stator 50 of the first motor 4) is located on the first axis R1 line.

  The second motor 7 is for rotating the support 6 about the second axis R2. The second motor 7 is arranged such that its rotation axis 67 (second axis R2) coincides with the optical axis L. Therefore, the rotor 81 of the second motor 7 rotates around the optical axis L.

  The rotor 81 of the second motor 7 is coaxially connected to the shaft 55 of the bottom plate 52 of the support 6. Therefore, the second axis R2 passes through the bottom plate portion 52. Further, the second motor 7 is fixed to a movable body on which the optical unit 1B with a shake correction function is mounted. Accordingly, when the rotor 81 is rotated by supplying power to the coil 74 of the second motor 7, the support 6 rotates about the second axis R <b> 2 integrally with the rotor 81. Here, the camera unit 3, the fixing member 5, the first motor 4, the support 6, and the rotor 81 of the second motor 7 rotate relative to the stator 80 of the second motor about the second axis. The movable body 83 of The center of gravity G2 of the second movable body 83 is located on the second axis R2.

  Also in this example, one cable 16 is connected to the camera unit 3. The end of the cable 16 opposite to the camera unit 3 is connected to the host device. Electric power and a control signal are supplied to the camera unit 3 from the host device side via the cable 16. The power transmitted via the cable 16 is supplied to the camera substrate 12. Further, it is supplied to the stator substrate 26 via a connector 49 (camera side connector 17 and motor side connector 47). Further, a control signal (serial signal) transmitted via the cable 16 is input to the imaging control unit 14 of the camera unit 3 and is transmitted via the connector 49 (camera side connector 17 and motor side connector 47). The signal is input to the motor control unit 27 of the motor 4.

  The motor control unit 27 of the first motor 4 supplies power to the coil 38 based on a control signal transmitted from the host device via the cable 16 and drives the motor. Thereby, the first motor 4 rotates the movable body 60 about the first axis R1 line, and performs pitching correction to correct the posture of the camera unit 3 about the first axis R1 orthogonal to the optical axis L.

  On the other hand, the power supply line 111 from the above device is directly connected to the second motor 7. The signal line 112 that enables communication with the host device is connected to the second motor 7. The control signal from the host device side is input to the motor control unit 75 of the second motor 7 through the signal line 112. The motor control unit 75 supplies power to the coil 74 based on the control signal and drives the second motor 7. As a result, the second motor 7 rotates the support 6 about the second axis R <b> 2 and performs rolling correction for correcting the posture of the camera unit 3 about the second axis R <b> 2 that coincides with the optical axis L.

Also in this example, the connector 49 (camera-side connector 17 and motor-side connector 47) is used electrically between the camera unit 3 and the stator 50 of the first motor 4 without considering their relative rotation. Can connect. Therefore, the camera unit 3 and the stator 50 of the first motor 4 are electrically connected by the connector 49, and the cable 16 (feed line) is connected to the camera unit 3. Electric power can be supplied via the electric wire. Further, electric power can be supplied to the stator 50 of the first motor 4 via the cable 16 (feed line) and the connector 49. On the other hand, since another power supply line 111 is connected to the second motor 7 and power is directly supplied, the power supply system can be made into two systems.

  Further, according to the present embodiment, the same operational effects as those of the above-described optical unit 1 with shake correction function can be obtained.

  Furthermore, according to this example, since the camera substrate 12 and the stator substrate 26 are orthogonal to each other, heat from the image pickup device 13 and heat from the coil 38 are easily released. The camera substrate 12 and the stator substrate 26 may be connected by a flexible printed circuit board or the like instead of the connector 49 (the camera side connector 17 and the motor side connector 47).

  Here, in the optical unit 1B with the shake correction function of the second modification, the rotation axis 67 of the rotor 81 of the second motor 7 coincides with the optical axis L, but the rotation axis 67 may be parallel to the optical axis L. That is, the second axis R2 may be parallel to the optical axis L. Further, in the optical unit 1B with shake correction function of the second modification, the rotary shaft 22 of the first motor 4 is orthogonal to the optical axis L, but the rotary shaft 22 of the first motor 4 is perpendicular to the optical axis L It may be on a plane and may be separated from the optical axis L. That is, the first axis R1 only needs to be on a plane perpendicular to the optical axis L (second axis R2), and may be separated from the optical axis L and the second axis R2. In this case, it is possible to perform rolling correction in which the camera unit 3 is rotated about a second axis R2 parallel to the optical axis L by the rotation of the second motor 7. Further, the rotation of the first motor 4 can rotate the camera unit 3 around the first axis R1 located on a plane perpendicular to the optical axis L to perform pitching correction or yawing correction.

(Other embodiments)
A cable 16 extending from an external device may be connected to the stator substrate 26. In this case, the stator board 26 is provided with the communication control unit 85 and the power supply unit 86. Further, the power transmitted via the cable 16 is transmitted from the stator substrate 26 side to the camera unit 3 via the camera side connector 17 and the motor side connector 47. In addition, communication between the imaging control unit 14 and the host device is performed via the cable 16, the camera-side connector 17, and the motor-side connector 47.

DESCRIPTION OF SYMBOLS 1.1A Optical unit with a shake correction function, 2 ... Lens (optical element), 3 ... Camera part, 4 ... 1st motor, 5 ... Fixing member, 6 ... Support body, 7 ... 2nd motor, 11 ... Holder, DESCRIPTION OF SYMBOLS 12 ... Camera board | substrate, 12a ... Board | substrate surface, 12b ... Board | substrate back surface, 13 ... Imaging device, 14 ... Imaging control part, 15 ... Cable connector, 16 ... Cable, 17 ... Camera side connector, 21 ... Rotor, 22 ... Rotating shaft, 25 ... Motor body, 26 ... Stator board, 26a ... Board surface, 27 ... Motor controller, 28 ... Motor fixing hole, 31 ... Sleeve, 32 ... First bearing, 33 ... Second bearing, 34 ... Rotor part, 35 ... Stator portion 37: stator core 38: coil 41: rotor case 42: magnet 44: circular plate portion 45: cylindrical portion 47: motor side connector 49: connector (connection member) 50 Stator, 52 ... bottom plate, 53/54 ... side plate, 55/56 ... shaft, 58 ... rotating shaft fixing hole, 60 ... movable body, 65 ... motor body, 67 ... rotating shaft, 68 ... rotor, 70 ... Stator part 71 ... magnet 73 ... stator core 74 ... coil 75 ... motor control part 80 ... stator 81 ... rotor 83 ... second movable body 85 ... communication control part 86 ... power supply part 87 ... Serializer 89 ... Power supply circuit 90 ... Driver circuit 91 ... Control unit 92 ... Driver circuit 93 ... Shunt resistor 94 ... Amplifier circuit
95 ... Hall element, 96 ... Hall element, 97/98 ... Amplifier circuit, 101 ... Normalization processing unit, 102 ... Storage unit, 103 ... Position detection unit, 104 ... Calibration execution unit, 105 ... Feedback control unit, 111 ... Feed line 112 ... signal line 115 ... flexible printed circuit board G1 ... center of gravity of movable body G2 ... center of gravity of camera unit, first motor and support body, GND ... ground, L ... optical axis, L1 ... optical axis Forward of the direction (subject side), L1 ... forward of the optical axis direction, R1 ... first axis, R2 ... second axis, S ... gap

Claims (16)

A camera unit having an optical element and an imaging element;
A stator comprising a coil and a first motor having a rotor rotating about a first axis;
A support for supporting the first motor and the camera unit;
A second motor for rotating the support around a second axis on a plane perpendicular to the first axis;
Have
The rotor is fixed to the support;
The camera unit is fixed to the stator,
The camera unit and the stator constitute a movable body that rotates relative to the support body.   The optical unit with a shake correction function according to claim 1, further comprising a connection member that electrically connects the camera unit and the stator.   The optical unit with a shake correction function according to claim 2, wherein the first axis is parallel to the optical axis of the optical element or coincides with the optical axis. A fixing member for fixing the camera unit to the stator;
The stator includes a stator substrate on which the coil is fixed perpendicular to the first axis,
The camera unit includes a camera substrate having a substrate surface orthogonal to the optical axis of the optical element, and the imaging element mounted on the substrate surface,
The optical unit with a shake correction function according to claim 2, wherein the camera substrate is disposed in parallel with the stator substrate with a gap therebetween and is fixed to the stator substrate via the fixing member.   The optical unit with a shake correction function according to claim 4, wherein the coil is positioned between the stator substrate and the camera substrate in a direction along the first axis.   5. The optical unit with a shake correction function according to claim 4, wherein the optical unit is provided on the opposite side of the stator substrate from the camera substrate in a direction along the first axis. The connection member includes a connector for connecting the stator substrate and the camera substrate,
The optical unit with a shake correction function according to any one of claims 4 to 6, wherein the connector doubles as the fixing member. The camera unit and the first motor are arranged in the optical axis direction,
The support includes a bottom plate portion that is positioned opposite to the camera portion of the first motor in the optical axis direction and extends in an orthogonal direction orthogonal to the optical axis, and both end portions of the bottom plate portion in the orthogonal direction And a pair of side plate portions extending from the
The rotor is fixed to the bottom plate part,
The pair of side plate portions are located on both sides of the first motor in the orthogonal direction,
The optical unit with a shake correction function according to any one of claims 3 to 7, wherein the second axis passes through the pair of side plate portions.   The optical unit with a shake correction function according to claim 2, wherein the second axis is parallel to the optical axis of the optical element or coincident with the optical axis. A fixing member for fixing the camera unit to the stator;
The stator includes a stator substrate having the coil fixed thereto orthogonal to the first axis,
The camera unit includes a camera substrate having a substrate surface orthogonal to the optical axis of the optical element and on which the imaging element is mounted along the substrate surface,
10. The optical unit with a shake correction function according to claim 9, wherein the camera substrate is disposed perpendicularly to the stator substrate, and is fixed to the stator substrate via the fixing member. The connection member includes a connector for connecting the stator substrate and the camera substrate,
The optical unit with a shake correction function according to claim 10, wherein the connector also serves as the fixing member. The camera unit and the first motor are arranged in the optical axis direction,
The support includes a bottom plate portion that is positioned opposite to the camera portion of the first motor in the optical axis direction and extends in an orthogonal direction orthogonal to the optical axis, and both end portions of the bottom plate portion in the orthogonal direction And a pair of side plate portions extending from the
The rotor is positioned between the pair of side plate portions and fixed to the pair of side plate portions,
The first shaft passes through the pair of side plate portions,
The optical unit with a shake correction function according to claim 10, wherein the second axis passes through the bottom plate portion. A cable connected to one of the camera unit and the first motor;
The power supply to the camera unit, the power supply to the first motor, and the transmission of the video signal from the imaging device to the outside are performed through the one cable. An optical unit with a shake correction function according to any one of to 12. The cable is connected to the camera unit;
The camera unit includes a communication control unit for transmitting a video signal via the cable,
The optical unit with a shake correction function according to claim 13, wherein the communication control unit includes a serializer that transmits the video signal as a serial signal.   The optical unit with shake correction function according to claim 1, wherein the center of gravity of the movable body overlaps the first axis. The camera unit, the first motor, the support, and the rotor of the second motor constitute a second movable body that rotates relative to the stator of the second motor,
The optical unit with a shake correction function according to claim 1, wherein a center of gravity of the second movable body overlaps with the second axis.

Images