JP7484424B2 - Image capture device and movement control method for image capture device - Google Patents

Description

This technology relates to the technical field of an imaging device in which a movable body having an imaging element is moved in a direction perpendicular to the optical axis direction relative to a fixed body, and a movement control method for the imaging device.

Some imaging devices, such as video cameras and still cameras, perform a blur correction operation to correct image blur that occurs during shooting, etc., and improve image quality.

In some such imaging devices, a movable body having an imaging element is moved relative to a fixed body in a direction perpendicular to the optical axis direction to correct image blur, and a connecting member is connected to each of the fixed body and the movable body (see, for example, Patent Document 1). In the imaging device described in Patent Document 1, for example, a heat transfer member is provided as the connecting member, and heat generated in the movable body when the movable body moves relative to the fixed body is transferred to the fixed body by the heat transfer member.

The imaging element is configured as part of an element unit together with a circuit board for driving the imaging element, and when the imaging element is driven, heat is generated from the imaging element and the circuit board, etc., and the generated heat may affect the driving of the imaging element or the stable driving state of the circuit board. Therefore, as described above, by transferring heat from the movable body to the fixed body, the effect of heat on the movable body is reduced, ensuring good operating conditions of the movable body and ensuring stable driving conditions of the imaging element and circuit board.

Patent No. 5168047

In a structure in which the fixed body and the movable body are connected by a connecting member, when the movable body moves in a direction perpendicular to the optical axis direction relative to the fixed body, the connecting member is deformed in conjunction with the movement of the movable body, and a reaction force against the deformation is generated in the connecting member, and the generated reaction force is applied from the connecting member to the movable body as a load against the movement.

On the other hand, in an imaging device that performs a shake correction operation, for example, when the power is turned on, a center holding operation is performed as an initial operation to move the movable body to a position where the center of the image sensor coincides with the center of the optical axis of the lens. By performing the center holding operation, the image sensor can move in any direction to correct image blur using the center position as a reference during the shake correction operation, and a high-speed and high-precision shake correction operation can be performed.

However, performing the center holding operation requires sufficient power to overcome the load from the connecting members in addition to the weight of the movable body. In particular, the power used in imaging devices is dominated by the power required to hold the movable body in the center, so imaging devices that have connecting members tend to consume more power when holding the movable body in the center.

The imaging device and the movement control method for the imaging device of the present technology aim to reduce the power consumption when holding the movable body at the center.

First, an imaging device according to the present technology includes a fixed body fixed inside an outer casing, a movable body having an imaging element and moved relative to the fixed body in a direction perpendicular to the optical axis of a lens, a drive unit that moves the movable body, a control unit that controls the drive unit so that a first movement of the movable body from an initial position to a predetermined via position is followed by a second movement from the via position to a center position where the center of the optical axis of the lens and the center of the imaging element coincide, and a connecting member, each part of which is connected to the movable body and the fixed body, respectively, which is deformed in accordance with the movement of the movable body relative to the fixed body and has hysteresis generated based on the deformation due to the first movement and the deformation due to the second movement, wherein a plurality of the via positions are stored, and a predetermined one of the plurality of via positions is selected depending on the attitude or shooting mode during use .

As a result, in a state in which mechanical hysteresis occurs in the connecting member, the movable body is moved from the initial position to the intermediate position by the first movement, and then moved from the intermediate position to the center position by the second movement, thereby holding the center of the movable body. Also, the movable body is moved by the first movement to the intermediate position selected according to the posture or shooting mode during use.

Secondly, in the imaging device according to the present technology described above, it is desirable that the direction of movement of the movable body due to the first movement is a direction that includes a component in the opposite direction to the direction of gravity.

As a result, the movable body is moved to the intermediate position in a direction that includes a component in the opposite direction to the direction of gravity during the first movement.

Thirdly, in the imaging device according to the present technology described above, it is desirable that the direction of movement of the movable body due to the first movement is opposite to the direction of gravity.

As a result, the movable body is moved to the intermediate position in the direction opposite to the direction of gravity during the first movement.

Fourthly, in the imaging device according to the present technology described above, it is desirable to provide a detection unit that determines the direction of gravity by detecting the orientation during use.

As a result, the movable body is always moved in the opposite direction to the direction of gravity during the first movement in accordance with the determination result from detection by the detection unit, so that the movable body is moved in the opposite direction to the direction of gravity during the first movement regardless of the posture of the imaging device when in use.

Fifth, in the imaging device according to the present technology described above, it is desirable that the direction of movement of the movable body due to the first movement coincides with the deformation direction of the connection member.

As a result, the movable body is moved to the intermediate position in the deformation direction of the connection member during the first movement.

Sixth, in the imaging device according to the present technology described above, it is desirable to use a heat transfer sheet as the connection member, which transfers heat generated in the movable body to the fixed body.

This allows heat to be transferred from the movable body to the fixed body via a connecting member that has mechanical hysteresis.

Seventh, in the imaging device according to the present technology described above, it is preferable that a flexible printed circuit board that is deformed in accordance with the movement of the movable body is used as the connection member.

This makes it possible to reduce power consumption by utilizing the mechanical hysteresis of the flexible printed wiring board, which is used to supply current and receive signals to each part of the moving body.

Eighth, in the imaging device according to the present technology described above, it is desirable that the first movement and the second movement are performed when the power is turned on.

As a result, the first movement and the second movement are performed when the imaging device starts to be used.

Ninth, in the imaging device according to the present technology described above, it is desirable that the first movement and the second movement are performed when returning from a sleep mode.

As a result, the movable body is not held in the center position in the sleep mode, and the first and second movements are performed in conjunction with the return operation of the imaging device to the usable state.

Tenth, in the imaging device according to the present technology described above, it is desirable that a video shooting mode and a still image shooting mode can be set, and that the first movement and the second movement are performed when the video shooting mode is set.

This means that the first and second movements are not performed in still image capture mode.

The movement control method for an imaging device according to the present technology includes a fixed body fixed inside an outer casing, a movable body having an imaging element, which is moved relative to the fixed body in a direction perpendicular to the optical axis of the lens and undergoes a first movement and a second movement, and a connecting member having a portion connected to the movable body and the fixed body, respectively, which is deformed as the movable body moves relative to the fixed body and has hysteresis generated based on the deformation due to the first movement and the deformation due to the second movement, wherein a center position where the center of the optical axis of the lens and the center of the imaging element coincide is set as one of the movement positions of the movable body, and a plurality of predetermined via positions are stored as one of the movement positions of the movable body , a predetermined one of the plurality of via positions is selected according to the attitude or shooting mode of the imaging device when in use, and the movable body is moved from an initial position to the predetermined via position in the first movement, and the movable body is moved from the via position to the center position in the second movement.

As a result, in a state in which mechanical hysteresis occurs in the connecting member, the movable body is moved from the initial position to the intermediate position by the first movement, and then moved from the intermediate position to the center position by the second movement, thereby holding the center of the movable body. Also, the movable body is moved by the first movement to the intermediate position selected according to the posture or shooting mode during use.

2 to 18 show an imaging device and a movement control method in the imaging device according to the present technology, and this figure is a perspective view of the imaging device. FIG. 2 is an exploded perspective view of the image blur correction device. FIG. 2 is a perspective view of an image blur correction device. 3 is an exploded perspective view of the image blur correction device, seen from the opposite direction to that of FIG. 2. FIG. FIG. 4 is a perspective view of the image blur correction device as seen from the opposite direction to that of FIG. 3 . FIG. FIG. 4 is a side view showing a part of the movable body. FIG. 2 is a development view of a first flexible printed wiring board. FIG. 2 is a perspective view of a first flexible printed wiring board. 10 is a perspective view of the first flexible printed wiring board, seen from a direction different from that of FIG. 9 . FIG. FIG. 2 is a diagram showing an imaging device in an upright position. 11 is a conceptual diagram showing a state in which the imaging element is in an initial position during center holding operation. FIG. 11 is a conceptual diagram showing a state in which the imaging element is moved to a relay position in the center holding operation. FIG. 11 is a conceptual diagram showing a state in which the imaging element is moved to a center position in the center holding operation. FIG. 10 is a graph showing a state of a load generated in a connection member when a first movement and a second movement of a movable body are performed. FIG. FIG. 2 is a diagram showing an imaging device in a lying-down position. FIG. 1 is a block diagram of an imaging device.

Below, an embodiment of the imaging device and the movement control method for the imaging device according to the present technology will be described with reference to the attached drawings.

The embodiment of the invention shown below applies the imaging device of the present technology to a still camera, and applies the movement control method in the imaging device of the present technology to the movement control method in the still camera.

The scope of application of the imaging device and the movement control method for the imaging device of the present technology is not limited to still cameras and the movement control method for the still cameras, respectively. The imaging device and the movement control method for the imaging device of the present technology can be widely applied to imaging devices incorporated in various devices such as video cameras, mobile phones, and personal digital assistants, or the movement control methods for these imaging devices.

In the following explanation, the directions of front, back, up, down, left and right are indicated as viewed from the photographer when taking pictures with a still camera. Therefore, the subject side is the front and the photographer side is the rear.

Note that the directions of front, back, up, down, left and right shown below are for convenience of explanation, and the implementation of this technology is not limited to these directions.

The lenses referred to below include both those made up of a single lens and those made up of multiple lenses as a lens group.

<General configuration of imaging device>
The imaging device 1 is composed of a device body 2 and a lens barrel 60 (see FIG. 1). The lens barrel 60 is, for example, an interchangeable lens that is detachable from the device body 2. Note that the present technology can also be applied to a type in which a lens unit having a similar internal structure to the lens barrel 60 is incorporated inside the device body, and a retractable type in which this lens unit protrudes from or is stored in the device body.

The device main body 2 is made up of the necessary parts arranged inside and outside the outer casing 3.

Various operation units 4, 4, ... are arranged on the top and rear surfaces of the outer casing 3. The operation units 4, 4, ... include, for example, a power button, a shutter button, a zoom knob, a mode switching knob, etc.

A display (not shown) is located on the rear of the outer casing 3.

A circular opening 3a is formed on the front surface of the outer housing 3, and the area surrounding the opening 3a is provided as a mount section 5 for mounting the lens barrel 60.

The lens barrel 60 is composed of a roughly cylindrical outer tube 61 whose axial direction is in the front-to-rear direction, and the necessary parts attached or supported inside and outside the outer tube 61. The axial direction of the lens barrel 60 coincides with the overall optical axis direction of the imaging device 1.

A mounting protrusion 62 is provided at the rear end of the outer barrel 61. The lens barrel 60 is attached to the device body 2 by connecting the mounting protrusion 62 to the mount section 5, for example, by a bayonet connection.

The lens barrel 60 is provided with operation rings 63, 63 that function as a zoom ring and a focus ring. The operation rings 63, 63 are rotatably supported on the outer barrel 61, and zooming and focusing are performed by rotating the operation rings 63, 63.

The lens barrel 60 has, for example, a plurality of lenses (lens groups) 64, 64, .... Note that only the frontmost lens 64 is shown in FIG. 1. The lenses 64, 64, ... are positioned at a distance in the optical axis direction (front-to-back direction), and have movable lenses (movable lens groups) that can move in the optical axis direction and fixed lenses (fixed lens groups) that cannot move in the optical axis direction.

<Configuration of Imaging Device>
An image blur correction device 6 that corrects image blur is disposed inside the device body 2 (see FIG. 1). The image blur correction device 6 has a fixed body 7 and a movable body 8 (see FIGS. 2 to 5). The image blur correction device 6 corrects image blur by moving the movable body 8 relative to the fixed body 7 in a direction perpendicular to the optical axis direction.

The fixed body 7 has a base plate 9, first magnets 10, 10, second magnets 11, 11, ... and fixed side heat transfer plates 12, 12.

The base plate 9 has a base portion 13 formed in a plate shape facing the front-rear direction, a first restricting portion 14 protruding forward from the upper end of the base portion 13, and a second restricting portion 15 protruding forward from one side of the base portion 13.

An opening 13a is formed in the base portion 13, penetrating from the front to the rear. The side of the base portion 13 opposite the side where the second restricting portion 15 is provided is provided as a first magnet mounting portion 13b, and the lower end of the base portion 13 is provided as a second magnet mounting portion 13c.

Cylindrical regulating protrusions 16, 16, ... are attached to the outer periphery of the front surface of the base portion 13. For example, four regulating protrusions 16, 16, ... are provided, one is attached to the upper end of the side of the base portion 13 opposite the side on which the second regulating portion 15 is provided, and three are attached to the lower end of the base portion 13, spaced apart on the left and right.

The first magnets 10 are formed in a vertically long shape, and two are attached side by side to the first magnet attachment portion 13b of the base plate 9. The second magnets 11 are formed in a horizontally long shape, and two are attached side by side, spaced apart from each other on the left and right, to the second magnet attachment portion 13c of the base plate 9.

The fixed heat transfer plate 12 is made of, for example, a metal material with high thermal conductivity, and is composed of an attachment plate portion 12a facing the front-rear direction and an attachment plate portion 12b protruding forward from one end of the upper and lower attachment plate portion 12a (see Figures 4 and 5). The attachment plate portion 12a of the fixed heat transfer plate 12 is attached from the rear to the base portion 13 around the opening 13a in the base plate 9, and the attachment plate portion 12b protrudes from the opening 13a to the front side of the base portion 13. The fixed heat transfer plate 12 may be formed integrally with the base plate 9.

The movable body 8 has an element unit 17 and movable heat transfer plates 18, 18 (see Figures 2 to 5).

The element unit 17 is constructed by attaching or holding each required part to a holding base 19. The holding base 19 is formed in a substantially rectangular frame shape. A substantially rectangular holding frame 20 is attached to the front side of the holding base 19.

An optical filter 21 is disposed on the front side of the holding base 19, and the optical filter 21 is held by a holding frame 20. A vibration device (not shown) is attached to the optical filter 21. By attaching the vibration device to the optical filter 21, dust adhering to the surface of the optical filter 21 is shaken off by the vibration of the vibration device, and adhesion of dust to the optical filter 21 is suppressed.

A rectangular plate-shaped element base 22 is attached to the rear surface of the holding base 19. The element base 22 has an image sensor 22a. The image sensor 22a may be, for example, a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor).

A circuit board 23 is attached to the rear surface of the element base 22, except for the outer periphery, via a board base (not shown).

A wiring board 24 is disposed on the outer periphery of the holding base 19 (see Figures 6 and 7). The wiring board 24 has the function of supplying power to the vibration device, and a flexible printed wiring board is used as the wiring board 24. The wiring board 24 has a conductive portion 24a disposed on the front surface of the holding base 19 and a power supply portion 24b bent in a direction perpendicular to the conductive portion 24a, and is positioned along the side of the holding base 19 with the power supply portion 24b extending forward and backward.

The end of the conductive part 24a on the power supply part 24b side is provided as the clamped part 24c. The holding base 19 has a recess 19a that is open forward and to the side at least in the part where the clamped part 24c is located.

The wiring board 24 is not attached to the holding base 19 and is allowed to float above the sides and front of the holding base 19.

A pressing plate 25 is attached to the front of one side of the holding base 19. The pressing plate 25 is formed in a shape that extends vertically, and is positioned below the pressed portion 24c except for the upper end. The upper end of the pressing plate 25 is provided as a pressing portion 25a, and the portion other than the pressing portion 25a is attached to the lower portion of the recess 19a in the holding base 19, with the pressing portion 25a positioned in front of the recess 19a. Therefore, the pressed portion 24c of the wiring board 24 is held down from the front by the pressing portion 25a of the pressing plate 25. However, the pressed portion 24c is not fixed to the pressing portion 25a, and is allowed to move forward and backward in the recess 19a.

In this way, since the wiring board 24 is not attached to the holding base 19, a load is unlikely to be generated on the vibration device as would occur if the wiring board 24 were attached to the holding base 19, and since the pressed portion 24c is pressed from the front by the pressing portion 25a of the pressing plate 25, forward displacement relative to the holding base 19 is suppressed.

As a result, a good operating condition of the vibration device is ensured, and adhesion of dust to the optical filter 21 can be sufficiently suppressed, and the pressure plate 25 does not displace excessively relative to the holding base 19, so the space required for arranging the pressure plate 25 can be reduced, allowing for a reduction in size of the imaging device 1 in the optical axis direction.

A frame 26 is attached to the outer periphery of the rear surface of the element base 22 so as to cover the circuit board 23 (see Figures 2 to 5). The frame 26 has a rectangular frame portion 27, a first coil mounting portion 28 protruding laterally from the frame portion 27, and a second coil mounting portion 29 protruding downward from the frame portion 27.

The frame 26 has placement notches 26a, 26a, ... formed in the first coil mounting portion 28 and the second coil mounting portion 29. The placement notches 26a, 26a, ... are positioned vertically or horizontally spaced apart.

The first coil mounting portion 28 has a vertically elongated coil arrangement hole 28a penetrating from front to back, and the second coil mounting portion 29 has horizontally elongated coil arrangement holes 29a, 29a penetrating from front to back, spaced apart on the left and right.

The movable heat transfer plate 18 is formed, for example, from a metal material with high thermal conductivity, and is composed of a horizontally elongated mounting plate portion 18a facing the front-rear direction and a mounting plate portion 18b protruding rearward from one end of the mounting plate portion 18a in the up-down direction (see Figures 4 and 5). The mounting plate portion 18a of the movable heat transfer plate 18 is attached to the circuit board 23 from the rear via a heat dissipation sheet (not shown). The movable heat transfer plate 18 may be formed integrally with part of the element unit 17, for example, with the frame 26.

The wiring board 24 is connected to a first flexible printed wiring board 30 (see FIG. 6). The thickness direction of the first flexible printed wiring board 30 is in the front-to-rear direction, and the board is bent into a predetermined shape (see FIG. 8 to FIG. 10).

The first flexible printed wiring board 30 has a first connection portion 31 that extends vertically, a second connection portion 32 that extends horizontally, a conductive portion 33 that is aligned with the first connection portion 31 in the horizontal direction, and a wiring board connection portion 34 that is bent relative to the first connection portion 31, and is connected to one end of the second connection portion 31 in the horizontal direction with the lower end of the first connection portion 31 and the lower end of the conductive portion 33 aligned horizontally.

The conductive portion 33 is bent approximately 180 degrees in the optical axis direction (front-to-back direction) so that each portion faces the other.

The width of the wiring board connection portion 34 is smaller than that of the first connection portion 31, and is bent at two points (see dashed lines in FIG. 8). The wiring board connection portion 34 is bent in a state where it is folded back approximately 180 degrees from the upper end of the first connection portion 31. The wiring board connection portion 34 has an extension portion 34a that is continuous with the first connection portion 31 and extends approximately vertically, and a tip portion 34b that is continuous with the end of the extension portion 34a opposite the first connection portion 31, and the tip portion 34b is bent in a direction perpendicular to the extension portion 34a in the left-right direction. A connector 35 is connected to one surface of the tip portion 34b.

A first coil 36 and a second coil 37, 37 are connected to one surface of the first flexible printed circuit board 30. The first coil 36 is connected in a vertically elongated state to the rear surface of the first connection part 31, and the second coils 37, 37 are connected in a horizontally elongated state to the rear surfaces of the second connection parts 32, 32, respectively.

The first flexible printed wiring board 30 has the first connection portion 31 and at least a part of the extension portion 34a of the wiring board connection portion 34 attached to the first coil attachment portion 28 from the front, the second connection portion 32 attached to the second coil attachment portion 29 from the front, and the tip portion 34b of the wiring board connection portion 34 attached to one side surface of the frame 26 (see FIG. 6). A part of the conductive portion 33 is led out rearward from the opening 13a of the base plate 9 (see FIGS. 4 and 5), and the tip portion is connected to a drive circuit board (power supply board) (not shown) arranged on the rear side of the fixed body 7.

The connector 35 connected to the tip 34b of the first flexible printed wiring board 30 is connected by inserting the power supply portion 24b of the wiring board 24 from the front in the optical axis direction (see Figures 6 and 7). By inserting the power supply portion 24b into the connector 35, the wiring board 24 is connected to the first flexible printed wiring board 30.

In this way, the tip 34b of the first flexible printed wiring board 30 is attached to the side surface of the frame 26 in the thickness direction, and the wiring board 24 is connected to the first flexible printed wiring board 30 by inserting the power supply portion 24b into the connector 35 from the front. Therefore, the first flexible printed wiring board 30 and each part of the wiring board 24 do not protrude excessively to the side from the frame 26, so that the movable body 8 can be made smaller in the left-right direction.

In addition, since the wiring board 24 that supplies power to the vibration device is not connected to the circuit board 23 but to the wiring board connection portion 34 of the first flexible printed wiring board 30 attached to the frame 26, it is possible to shorten the length of the wiring board 24, thereby reducing the manufacturing cost of the image blur correction device 6 and simplifying the structure.

Furthermore, since the wiring board 24 arranged on the holding base 19 is connected to the first flexible printed wiring board 30 attached to the frame 26, the wiring board 24 and the first flexible printed wiring board 30 are less likely to apply load to the movement of the movable body 8, reducing power consumption and enabling smooth blur correction operation by the image blur correction device 6.

The movable body 8 configured as described above is supported on the fixed body 7 on the front side of the base plate 9 so as to be movable in a direction perpendicular to the optical axis direction (see Figures 3 and 5).

When the movable body 8 is supported by the fixed body 7, the frame-shaped portion 27 of the frame 26 is positioned on the inner surface side of the first restricting portion 14 and the second restricting portion 15 of the base plate 9, and the restricting protrusions 16, 16, ... attached to the base plate 9 are positioned in the placement notches 26a, 26a, ... respectively. Therefore, the first restricting portion 14, the second restricting portion 15 and the restricting protrusions 16, 16, ... restrict excessive movement of the movable body 8 in a direction perpendicular to the optical axis direction relative to the fixed body 7.

In addition, when the movable body 8 is supported by the fixed body 7, the pressing plate 38 is attached to the regulating protrusions 16, 16, ... from the front side by screws or the like. The pressing plate 38 is formed into a substantially L-shape by a vertically elongated portion 38a extending up and down and a horizontally elongated portion 38b extending left and right. When the pressing plate 38 is attached to the regulating protrusions 16, 16, ..., the first connection portion 31 of the first flexible printed wiring board 30 is blocked from the front side by the vertically elongated portion 38a, and the second connection portion 32 of the first flexible printed wiring board 30 is blocked from the front side by the horizontally elongated portion 38b.

The retaining plate 38 is attached to the restricting protrusions 16, 16, ... from the front side, preventing the movable body 8 from falling forward relative to the fixed body 7.

The movable body 8 has a first coil 36 and a second coil 37, 37 positioned opposite the first magnets 10, 10 and the second magnets 11, 11, ... of the fixed body 7, respectively.

Current is supplied to the first coil 36 and the second coils 37, 37 from the drive circuit board via the first flexible printed wiring board 30.

When a current is supplied to the first coil 36, the movable body 8 moves left and right relative to the fixed body 7 in relation to the magnetic field generated by the first magnet 10, and when a current is supplied to the second coils 37, 37, the movable body 8 moves up and down relative to the fixed body 7 in relation to the magnetic field generated by the second magnet 11. At this time, when a current is supplied in the opposite direction to the second coils 37, 37, an upward thrust is generated by one second coil 37 and one second magnet 11, 11, and a downward thrust is generated by the other second coil 37 and the other second magnet 11, 11, and the movable body 8 moves in a direction inclined up, down, left and right relative to the fixed body 7. Therefore, the movable body 8 can be moved in any direction within a plane perpendicular to the optical axis direction relative to the fixed body 7.

In the image blur correction device 6, the first magnets 10, 10 and the first coil 36 form a drive unit for moving the movable body 8 in the left-right direction relative to the fixed body 7, and the second magnets 11, 11, ... and the second coils 37, 37 form a drive unit for moving the movable body 8 in the up-down direction relative to the fixed body 7.

These drive units are controlled by a control unit such as a microcomputer, and the amount and direction of the current supplied to the first coil 36 and the second coil 37, 37 are determined based on commands from the control unit, and the movable body 8 is moved relative to the fixed body 7.

When the movable body 8 is supported by the fixed body 7, the second flexible printed circuit board and the third flexible printed circuit board (not shown) are connected to the circuit board 23 in a state of being lined up on the left and right sides of the conductive portion 33 of the first flexible printed circuit board 30. The thickness direction of the second flexible printed circuit board and the third flexible printed circuit board are in the front-to-back direction, and the respective portions are bent in the optical axis direction so as to face each other, and a portion is led out rearward from the opening 13a of the base plate 9 and connected to the drive circuit board (power supply board). For example, signals are transferred between the circuit board 23 and the drive circuit board by the second flexible printed circuit board and the third flexible printed circuit board.

Connecting members 39, 39 are attached to the fixed heat transfer plates 12, 12 attached to the base plate 9 in the fixed body 7 and the movable heat transfer plates 18, 18 attached to the circuit board 23 in the movable body 8, respectively (see Figures 4 and 5). Note that the number of connecting members 39 provided in the imaging device 1 is arbitrary, and the number of fixed heat transfer plates 12 and movable heat transfer plates 18 is changed according to the number of connecting members 39.

The connecting member 39 is a heat transfer sheet formed of multiple sheet members 40, 40, ... made of, for example, graphite (see FIG. 11). The connecting member 39 is formed by folding the sheet members 40, 40, ... in a predetermined shape, for example, a shape in which two opposite sigma (Σ) shapes are joined at the left and right, and by joining both ends in the longitudinal direction of the sheet members 40, 40, ... to form a ring that penetrates from front to back.

The connection member 39 is composed of a fixed side mounting part 41 and a movable side mounting part 42 positioned opposite each other vertically, and a pair of deformation parts 43, 43 positioned between the fixed side mounting part 41 and the movable side mounting part 42.

The fixed side mounting part 41 and the movable side mounting part 42 face in the vertical direction, the fixed side mounting part 41 is joined to the mounting plate part 12b of the fixed side heat transfer plate 12, and the movable side mounting part 42 is joined to the mounting plate part 18b of the movable side heat transfer plate 18.

The deformation portions 43, 43 are positioned apart from each other on the left and right, and the upper and lower ends are connected to the left and right ends of the fixed side mounting portion 41 and the left and right ends of the movable side mounting portion 42, respectively. The half of the deformation portion 43 on the fixed side mounting portion 41 side is provided as the first portion 43a, and the half on the movable side mounting portion 42 side is provided as the second portion 43b, with the first portion 43a bent at an acute angle relative to the fixed side mounting portion 41, and the second portion 43b bent at an acute angle relative to the movable side mounting portion 42. The deformation portion 43 is bent at the continuous portion 43c between the first portion 43a and the second portion 43b in the opposite direction to the bending direction of the first portion 43a relative to the fixed side mounting portion 41 and the bending direction of the second portion 43b relative to the movable side mounting portion 42. Therefore, the deformation parts 43, 43 are formed in a V-shape that opens outward in the left-right direction, and the distance between the continuous parts 43c, 43c is shorter than the length of the fixed side mounting part 41 and the movable side mounting part 42 in the left-right direction.

As described above, the deformation portions 43, 43 of the connecting member 39 are not joined to either the fixed body 7 or the movable body 8, so that the deformation portions 43, 43 are capable of deformation when the movable body 8 is moved in a direction perpendicular to the optical axis direction relative to the fixed body 7.

In the connection member 39, at least the deformation portions 43, 43 are stacked with the multiple sheet members 40, 40, ... not joined together. The fixed side mounting portion 41 and the movable side mounting portion 42 are stacked with the multiple sheet members 40, 40, ... either joined or not joined together.

As described above, each part of the connection members 39, 39 is joined to the fixed heat transfer plates 12, 12 attached to the base plate 9 and the movable heat transfer plates 18, 18 attached to the circuit board 23, thereby connecting the fixed body 7 and the movable body 8 by the connection members 39, 39.

One end of a heat-conducting sheet (not shown) made of graphite or the like is attached from behind to the mounting plate portion 12a of the fixed heat transfer plate 12. The other end of the heat-conducting sheet is attached, for example, to the inner surface of the outer casing 3.

<Operation of the Imaging Apparatus>
In the imaging device 1 configured as described above, when the power is turned on, such as during imaging, the imaging element 22a is in a driven state, and heat is generated from the movable body 8, particularly the imaging element 22a and the circuit board 23. The heat generated in the movable body 8 is transferred from the movable-side heat transfer plate 18 to the fixed-side heat transfer plate 12 via the connecting member 39. The heat transferred to the fixed-side heat transfer plate 12 is transferred to the outer casing 3 from the heat conduction sheet attached to the mounting plate portion 12a of the fixed-side heat transfer plate 12, and is released from the outer casing 3 to the outside.

As a result, the temperature rise of the movable body 8, particularly the image sensor 22a and the circuit board 23, is suppressed, and good operating conditions of the image sensor 22a, the circuit board 23, etc. are ensured.

During the above-mentioned photographing, the movable body 8 is moved relative to the fixed body 7 in a direction perpendicular to the optical axis direction to perform blur correction. In the blur correction operation, the movement of the movable body 8 relative to the fixed body 7 causes the deformation portions 43, 43 of the connection member 39, the conductive portion 33 of the first flexible printed wiring board 30, the second flexible printed wiring board, and the third flexible printed wiring board to deform.

At this time, the thickness direction of the connection member 39 is oriented perpendicular to the optical axis direction, and no twisting occurs in the deformation portion 43 that is deformed, so the load generated in the connection member 39 is small, and the load (driving load) applied from the connection member 39 to the movable body 8 is small.

<Center holding operation>
Next, the center maintaining operation performed in the imaging device 1 will be described (see FIGS. 12 to 17).

The center holding operation is an operation in which the movable body 8 is moved relative to the fixed body 7, and the movable body 8 is held at a center position where the center of the image sensor 22a coincides with the center of the optical axis of the lens 64. In the imaging device 1, for example, this is performed as follows when the power is turned on and when returning from sleep mode.

The center holding operation is performed by first moving the movable body 8 from the initial position to the intermediate position by the first movement, and then moving the movable body 8 from the intermediate position to the center position, the center position being a position that exists between the initial position and the intermediate position. For example, the center position is a position that exists between the initial position and the intermediate position in the first movement direction.

When the center holding operation is started, the imaging device 1 is usually held by the user in an upright position (see FIG. 12), and gravity causes the center P of the imaging element 22a to be positioned lower than the center S of the lens 64 (see FIG. 13). The upright position is a position in which the imaging device 1 is long in landscape orientation and the power button (operation button 4) is positioned above the outer casing 3, and is also the position when the user uses the imaging device 1 attached to a tripod or the like.

The first movement is a movement of the movable body 8 from the initial position to a predetermined intermediate position, and in the upright state, the initial position is a position where the center P of the image sensor 22a is below the center S of the lens 64 (see FIG. 13). The intermediate position is a predetermined position on the opposite side of the initial position with the center position in between. Therefore, in the first movement, the movable body 8 is moved upward from the initial position in the direction opposite to the direction of gravity to the intermediate position (see FIG. 14). When the movable body 8 has been moved to the intermediate position, the center P of the image sensor 22a is positioned above the center S of the lens 64. At this time, in the first movement, the movable body 8 is moved from the initial position, for example, past the center position to the intermediate position.

When the movable body 8 moves from the initial position to the intermediate position in this first movement, the connection member 39, the first flexible printed wiring board 30, the second flexible printed wiring board, and the third flexible printed wiring board are deformed, and the load acting on the connection member 39, etc. is changed.

Then, in the second movement, the movable body 8 is moved from the intermediate position to the center position (see FIG. 15). In the second movement, the movable body 8 is moved downward from the intermediate position in the direction of gravity to the center position. By moving the movable body 8 to the center position, the center P of the image sensor 22a is aligned with the center S of the lens 64, and when the power is on or in a state other than the sleep mode, and the blur correction operation is not being performed, the supply of power to the first coil 36 and the second coils 37, 37 continues, and the movable body 8 is held in the center position.

The center holding operation is performed by the second movement following the first movement as described above, but the connection member 39 has a property that the load (driving load) changes depending on the direction of movement of the movable body 8. The change in the load on the connection member 39 is described below (see Figure 16).

Figure 16 is a graph showing the state of the load generated in the connection member 39 when the first movement and the second movement of the movable body 8 are performed. In Figure 16, the horizontal axis shows the position of the movable side mounting part 42 relative to the fixed side mounting part 41 in the connection member 39, the positive direction is the direction in which the movable side mounting part 42 approaches the fixed side mounting part 41, and the origin is the design reference dimension (design nominal dimension) of the fixed side mounting part 41 and the movable side mounting part 42. In Figure 16, the vertical axis shows the load generated in the connection member 39, and the positive direction is upward.

In FIG. 16, point A on the left end is the position where the movable side mounting part 42 is furthest away from the fixed side mounting part 41 due to gravity and corresponds to the initial position, and point C on the right end is the position where the movable body 8 is moved against gravity and the movable side mounting part 42 is closest to the fixed side mounting part 41 and corresponds to the intermediate position.

As shown in FIG. 16, mechanical hysteresis occurs in the connecting member 39 based on the deformation caused by the first movement R1, which moves the connecting member 39 from the initial position at point A through the center position at point B to the intermediate position at point C, and the deformation caused by the second movement R2, which moves the connecting member 39 from the intermediate position at point C to the center position at point D, and it can be seen that the load at the center position at point D is smaller than that at the center position at point B.

In this way, mechanical hysteresis occurs in the connecting member 39 based on the deformation due to the first movement and the deformation due to the second movement. Therefore, as described above, in the center holding operation, by performing a first movement from the initial position through the center position to the intermediate position, followed by a second movement from the intermediate position to the center position, the load on the connecting member 39 is reduced, making it possible to reduce power consumption when performing the center holding operation.

The imaging device 1 may be provided with a detection unit such as a gyro sensor that determines the direction of gravity by detecting the posture during use, and may be configured so that the movable body 8 is moved in the direction opposite to the direction of gravity in the first movement and moved in the direction of gravity in the second movement based on the detection result of the detection unit.

For example, when the imaging device 1 is used in a landscape (portrait) orientation (see FIG. 17), the detection unit detects that the orientation is landscape, and the direction of gravity is determined based on the detection result of the detection unit. The movable body 8 is then moved in the opposite direction to the direction of gravity in the first movement, and moved in the direction of gravity in the second movement.

In this way, the direction of gravity is determined by detecting the posture during use, and the movable body 8 is always moved in the opposite direction to the direction of gravity during the first movement according to the determination result from detection by the detection unit. Therefore, regardless of the posture of the imaging device 1 during use, the movable body 8 is moved in the opposite direction to the direction of gravity during the first movement, and the power consumption used to hold the movable body 8 in the center position can be reduced in any state of use.

In addition, in the case where the imaging device 1 is capable of being set to a video shooting mode and a still image shooting mode, the first movement and the second movement may be performed when the video shooting mode is set, and when the still image shooting mode is set, the movable body 8 may be configured to move from the initial position to the center position without moving to the intermediate position.

Generally, still image shooting requires capturing a momentary scene and it is desirable to reduce the chance of missing a photo opportunity, whereas video shooting involves continuous shooting for a certain period of time, and there is a higher demand for still image shooting to start quickly than for video shooting.

Therefore, by being in an operating state in which the first movement and the second movement are performed in the video shooting mode as described above, the first movement and the second movement are not performed in the still image shooting mode, so that it is possible to reduce the power consumption used in the video shooting mode and to quickly start shooting still images.

The imaging device 1 may be configured such that a plurality of predetermined via-point positions are stored in a memory or the like, and a predetermined via-point position is read out from the memory and selected from the plurality of stored via-point positions according to the posture or shooting mode during use.

When configured in this way, the movable body 8 is moved by the first movement to a route position selected according to the posture or shooting mode during use, and by presetting the route position that generates the greatest mechanical hysteresis according to the posture or shooting mode, it is possible to achieve maximum reduction in power consumption for each posture or shooting mode.

<Summary>
As described above, the imaging device 1 includes a drive unit that moves the movable body 8, a control unit that controls the drive unit so that the movable body 8 performs a first movement from the initial position to the intermediate position followed by a second movement from the intermediate position to the center position, and a connecting member 39 that is deformed as the movable body 8 moves relative to the fixed body 7 and has mechanical hysteresis generated based on the deformation due to the first movement and the deformation due to the second movement.

Therefore, in a state in which mechanical hysteresis occurs in the connection member 39, the movable body 8 is moved from the initial position to the intermediate position by the first movement, and then moved from the intermediate position to the center position by the second movement, thereby holding the movable body 8 in the center, thereby reducing the power consumption in holding the movable body 8 in the center.

In addition, in the imaging device 1, the direction of movement due to the first movement is opposite to the direction of gravity.

Therefore, since the movable body 8 is moved to the intermediate position in the direction opposite to the direction of gravity during the first movement, the load on the connecting member 39 can be efficiently reduced, and the power consumption used to hold the movable body 8 in the center position can be efficiently reduced.

When the center holding operation is performed, it is most desirable to move the movable body 8 in the first movement in the direction opposite to the direction of gravity in order to reduce power consumption, but in the imaging device 1, the direction of movement of the movable body 8 in the first movement may include a component in the direction opposite to the direction of gravity, for example, diagonally upward.

In this case, the movable body 8 is moved from the initial position to the intermediate position in a direction that includes a component in the opposite direction to the direction of gravity during the first movement, and even when moved in such a direction, it is possible to reduce power consumption due to mechanical hysteresis.

Furthermore, in the imaging device 1, the direction of movement due to the first movement is aligned with the deformation direction of the connection member 39.

Therefore, since the movable body 8 is moved to the intermediate position in the deformation direction of the connection member 39 during the first movement, the load on the connection member 39 can be efficiently reduced, and the power consumption used to hold the movable body 8 in the center position can be efficiently reduced.

Furthermore, a heat transfer sheet that transfers heat generated in the movable body 8 to the fixed body 7 is used as the connecting member 39.

Heat is therefore transferred from the movable body 8 to the fixed body 7 by the connecting member 39, which has mechanical hysteresis, so that good heat transfer from the movable body 8 to the fixed body 7 is ensured while reducing the power consumption used to hold the movable body 8 in the center position.

In the above, an example was shown in which a heat transfer sheet was used as the connection member 39, but for example, a flexible printed circuit board that deforms as the movable body 8 moves may also be used as the connection member.

In this case, it is possible to reduce power consumption by utilizing the mechanical hysteresis of the flexible printed wiring board, which is used to supply current and receive signals to each part of the movable body 8, so that the power consumption used to hold the movable body 8 in the center position can be reduced without increasing manufacturing costs or complicating the structure.

In addition, since the first movement and the second movement are performed when the power is turned on, the first movement and the second movement are performed when the imaging device 1 starts to be used, so that the power consumption used to always keep the movable body 8 in the center position when the imaging device 1 is in use can be reduced.

On the other hand, since the first movement and the second movement are performed when returning from the sleep mode, the movable body 8 is not held in the center position in the sleep mode, and the first movement and the second movement are performed in conjunction with the return operation of the imaging device 1 to the usage state, the power consumption used in the imaging device 1 can be efficiently reduced.

Furthermore, according to a movement control method in which the movable body 8 is moved from the initial position to the intermediate position in the first movement, and the movable body 8 is moved from the intermediate position to the center position in the second movement, the same effect as that of the imaging device 1 described above can be obtained, and the power consumption when the movable body 8 is held in the center can be reduced.

<One embodiment of the imaging device>
FIG. 18 shows a block diagram of a still camera according to an embodiment of the imaging device of the present technology.

The imaging device (still camera) 100 (corresponding to imaging device 1) has a lens unit 101 that performs imaging functions, a camera signal processing unit 102 that performs signal processing such as analog-to-digital conversion of captured image signals, and an image processing unit 103 that performs recording and playback processing of the image signals.

The imaging device 100 also includes an image display unit 104 such as a liquid crystal panel that displays captured images, an R/W (reader/writer) 105 that writes and reads image signals to the memory 1000, a CPU (Central Processing Unit) 106 that controls the entire imaging device 100, an input unit 107 (corresponding to the operation unit 4) that is made up of various switches and the like through which the user performs required operations, and a lens drive control unit 108 that controls the drive of the lens arranged in the lens unit 101.

The lens unit 101 is composed of an optical system including a lens group 109 (corresponding to lens 64) and an image sensor 110 (corresponding to image sensor 22a) such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor).

The camera signal processing unit 102 performs various signal processing operations on the output signal from the image sensor 110, such as converting the signal into a digital signal, removing noise, correcting image quality, and converting the signal into a luminance and color difference signal.

The image processing unit 103 performs compression, encoding, decompression, and decoding of image signals based on a specified image data format, as well as conversion of data specifications such as resolution.

The image display unit 104 has the function of displaying various data such as the operation status of the user on the input unit 107 and captured images.

The R/W 105 writes image data encoded by the image processing unit 103 to the memory 1000 and reads image data recorded in the memory 1000.

The CPU 106 functions as a control processing unit that controls each circuit block provided in the imaging device 100, and controls each circuit block based on instruction input signals, etc., from the input unit 107.

The input unit 107 is composed of, for example, a shutter release button for performing shutter operations and a selection switch for selecting an operation mode, and outputs an instruction input signal to the CPU 106 in response to operations by the user.

The lens drive control unit 108 controls motors (not shown) that drive each lens of the lens group 109 based on control signals from the CPU 106.

The memory 1000 is, for example, a semiconductor memory (memory card) that is removable from a slot connected to the R/W 105, or an internal memory located inside the imaging device 100.

The operation of the imaging device 100 is described below.

In a standby state for shooting, under the control of the CPU 106, an image signal captured by the lens unit 101 is output to the image display unit 104 via the camera signal processing unit 102 and displayed as a camera-through image. In addition, when an instruction input signal for zooming is input from the input unit 107, the CPU 106 outputs a control signal to the lens drive control unit 108, and a specific lens in the lens group 109 is moved under the control of the lens drive control unit 108.

When a shutter (not shown) of the lens unit 101 is operated by an instruction input signal from the input unit 107, the captured image signal is output from the camera signal processing unit 102 to the image processing unit 103, where it is compressed and encoded and converted into digital data in a specified data format. The converted data is output to the R/W 105 and written to the memory 1000.

Focusing and zooming are performed by the lens drive control unit 108 moving a specific lens in the lens group 109 based on a control signal from the CPU 106.

When playing back image data recorded in memory 1000, the R/W 105 reads out specific image data from memory 1000 in response to an operation on the input unit 107, and after the image processing unit 103 performs decompression and decoding processing, the playback image signal is output to the image display unit 104, and the playback image is displayed.

In this technology, "imaging" refers to a process that includes only some or all of a series of processes, from photoelectric conversion processing in which the light captured by the image sensor 110 is converted into an electrical signal, to conversion of the output signal from the image sensor 110 into a digital signal by the camera signal processing unit 102, noise removal, image quality correction, conversion into luminance and color difference signals, etc., compression encoding/decompression decoding processing of the image signal based on a predetermined image data format by the image processing unit 103, conversion processing of data specifications such as resolution, and writing processing of the image signal to memory 1000 by the R/W 105.

That is, "imaging" may refer only to the photoelectric conversion process of converting the light captured by the image sensor 110 into an electrical signal, or may refer to a process ranging from the photoelectric conversion process of converting the light captured by the image sensor 110 into an electrical signal to the conversion of the output signal from the image sensor 110 to a digital signal by the camera signal processing unit 102, noise removal, image quality correction, conversion to luminance and color difference signals, etc. ... to the conversion of the output signal from the image sensor 110 to a digital signal by the camera signal processing unit 102, noise removal, image quality correction, conversion to luminance and color difference signals, etc., to the processing performed by the image processing unit 103. It may refer to the process of compressing, encoding, expanding, and decoding the image signal based on a predetermined image data format and the conversion of data specifications such as resolution by the image sensor 110, the photoelectric conversion process of converting the captured light into an electrical signal by the image sensor 110, the process of converting the output signal from the image sensor 110 into a digital signal by the camera signal processing unit 102, noise removal, image quality correction, conversion to luminance and color difference signals, and the process of compressing, encoding, expanding, and decoding the image signal based on a predetermined image data format by the image processing unit 103, and the conversion of data specifications such as resolution by the R/W 105, or it may refer to the process of writing the image signal to the memory 1000 by the R/W 105. The order of each process in the above processes may be changed as appropriate.

In addition, in this technology, the imaging device 100 may be configured to include only some or all of the image sensor 110, camera signal processing unit 102, image processing unit 103, and R/W 105 that perform the above processing.

<This technology>
The present technology can be configured as follows.

(1)
a fixed body fixed inside an outer casing;
a movable body having an image pickup element and being moved in a direction perpendicular to an optical axis of the lens relative to the fixed body;
A drive unit that moves the movable body;
a control unit that controls the drive unit so that a first movement of the movable body from an initial position to a predetermined intermediate position is followed by a second movement from the intermediate position to a center position where a center of an optical axis of the lens and a center of the image sensor coincide with each other;
an imaging device comprising: a connecting member, each portion of which is connected to the movable body and the fixed body, being deformed in association with movement of the movable body relative to the fixed body, and having mechanical hysteresis generated based on the deformation due to the first movement and the deformation due to the second movement.

(2)
The imaging device according to (1), wherein a moving direction of the movable body due to the first movement is set to a direction including a component in a direction opposite to a gravity direction.

(3)
The imaging device according to (1), wherein the moving direction of the movable body due to the first movement is opposite to the direction of gravity.

(4)
The imaging device according to (2) or (3), further comprising a detection unit configured to determine a direction of gravity by detecting a posture during use.

(5)
The imaging device according to any one of (1) to (4), wherein a moving direction of the movable body due to the first movement is aligned with a deformation direction of the connection member.

(6)
The imaging device according to any one of (1) to (5), wherein a heat transfer sheet that transfers heat generated in the movable body to the fixed body is used as the connecting member.

(7)
The imaging device according to any one of (1) to (6), wherein a flexible printed circuit board that is deformed in accordance with the movement of the movable body is used as the connection member.

(8)
The imaging device according to any one of (1) to (7), wherein the first movement and the second movement are performed when a power source is turned on.

(9)
The imaging device according to any one of (1) to (8), wherein the first movement and the second movement are performed when returning from a sleep mode.

(10)
It is now possible to set video and still image shooting modes,
The imaging device according to any one of (1) to (9), wherein the first movement and the second movement are performed when a video shooting mode is set.

(11)
A plurality of the route locations are stored,
The imaging device according to any one of (1) to (10), wherein a predetermined one of the plurality of via positions is selected according to a posture or a shooting mode during use.

(12)
an imaging device comprising: a fixed body fixed inside an outer casing; a movable body having an imaging element, which is moved relative to the fixed body in a direction perpendicular to the optical axis of a lens and undergoes a first movement and a second movement; and a connecting member, each part of which is connected to the movable body and the fixed body, which is deformed in association with the movement of the movable body relative to the fixed body and has mechanical hysteresis generated based on the deformation due to the first movement and the deformation due to the second movement, and wherein a center position where the center of the optical axis of the lens and the center of the imaging element coincide is set as one of the movement positions of the movable body,
the movable body is moved from an initial position to a predetermined intermediate position in the first movement,
the movable body is moved from the intermediate position to the center position during the second movement.

Reference Signs List 1: Imaging device 3: Outer housing 7: Fixed body 8: Movable body 22a: Imaging element 39: Connection member 64: Lens 100: Imaging device 110: Imaging element

Claims (11)

a fixed body fixed inside an outer casing;
a movable body having an image pickup element and being moved in a direction perpendicular to an optical axis of the lens relative to the fixed body;
A drive unit that moves the movable body;
a control unit that controls the drive unit so that a first movement of the movable body from an initial position to a predetermined intermediate position is followed by a second movement from the intermediate position to a center position where a center of an optical axis of the lens and a center of the image sensor coincide with each other;
a connecting member, each of portions of which is connected to the movable body and the fixed body, being deformed in association with the movement of the movable body relative to the fixed body, and having hysteresis generated based on the deformation caused by the first movement and the deformation caused by the second movement ,
A plurality of the route locations are stored,
A predetermined one of the plurality of via positions is selected according to a posture or a photographing mode during use.
Imaging device. The imaging device according to claim 1 , wherein a moving direction of the movable body due to the first movement is set to a direction including a component in a direction opposite to a gravity direction. The imaging device according to claim 1 , wherein a moving direction of the movable body due to the first movement is set to a direction opposite to a direction of gravity. The imaging device according to claim 2 , further comprising a detection unit that determines a direction of gravity by detecting a posture during use. The imaging device according to claim 1 , wherein a moving direction of the movable body due to the first movement is made to coincide with a deformation direction of the connection member. The imaging device according to claim 1 , wherein the connecting member is a heat transfer sheet that transfers heat generated in the movable body to the fixed body. The imaging device according to claim 1 , wherein the connecting member is a flexible printed circuit board that is deformed in accordance with the movement of the movable body. The imaging device according to claim 1 , wherein the first movement and the second movement are performed when a power source is turned on. The imaging device according to claim 1 , wherein the first movement and the second movement are performed when returning from a sleep mode. It is now possible to set video and still image shooting modes,
The imaging device according to claim 1 , wherein the first movement and the second movement are performed when a video shooting mode is set. an imaging device comprising: a fixed body fixed inside an outer casing; a movable body having an imaging element, which is moved relative to the fixed body in a direction perpendicular to the optical axis of a lens and undergoes a first movement and a second movement; and a connecting member, each part of which is connected to the movable body and the fixed body, which is deformed in association with the movement of the movable body relative to the fixed body and has hysteresis generated based on the deformation due to the first movement and the deformation due to the second movement, wherein a center position where the center of the optical axis of the lens and the center of the imaging element coincide is set as one of the movement positions of the movable body, and a plurality of predetermined via positions are stored as one of the movement positions of the movable body ;
a predetermined one of the plurality of via positions is selected in accordance with a posture or a photographing mode of the imaging device during use;
the movable body is moved from an initial position to a predetermined intermediate position in the first movement,
the movable body is moved from the intermediate position to the center position during the second movement.

Images