JP2013073200A - Image shake correcting device and imaging device provided with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small image shake correcting device and an imaging device provided with the same.SOLUTION: An image shake correcting device 1 is provided with a base section 10 including a permanent magnet 20, and a movable section 30 having a coil 40 installed at a position opposite to the permanent magnet 20. The permanent magnet 20 and the coil 40 constitute a voice coil motor 70. The permanent magnet 20 has notches 101, 102 and 103.

Description

  The present invention relates to an image blur correction apparatus that corrects an image blur due to a shake by displacing an image sensor and an imaging apparatus including the same.

  As a prior art of a camera shake correction device, for example, there is one disclosed in Patent Document 1. This camera shake correction device is composed of a fixed support substrate fixed to the inner surface of the camera body and supporting a permanent magnet, and a magnetic body substantially parallel to the fixed support substrate. And a yoke plate that constitutes a circuit, and the yoke plate is fixed to a plurality of support columns that are integrally provided on the fixed support substrate with fixing screws. Between the fixed support substrate and the yoke plate is slidable with respect to both, and a stage plate on which the image pickup device is supported is located on the front surface thereof. A plurality of driving coils are fixed to the surface of the stage plate facing the permanent magnet, and each driving coil is located in the magnetic field of the corresponding magnetic circuit.

  In this camera shake correction device, when a current is passed through the drive coil when camera shake occurs, the drive coil through which the current has passed generates a drive force that slides the stage plate and the image sensor. Then, the image sensor is slid in a direction to cancel the camera shake, and the image blur is corrected.

JP 2008-281660 A

  However, in the configuration of Patent Document 1, it is necessary to arrange the permanent magnets arranged on the fixed support substrate at positions avoiding interference in the entire moving range of the movable part supported so as to be movable. It is a hindrance.

  In addition, it is necessary to arrange a plurality of voice coil motors that have a pair of coils and permanent magnets, but the coils must be connected to each other so that they are not affected by the magnetic field of other permanent magnets other than the paired permanent magnets. The need for a predetermined distance also hinders downsizing.

  It is an object of the present invention to provide a small image blur correction device and an imaging device including the same.

  An image shake correction apparatus according to an aspect of the present invention includes a base portion including a permanent magnet, and a movable portion in which a coil is installed at a position facing the permanent magnet, and the permanent magnet and the coil include a voice A coil motor is formed, and the permanent magnet has a notch.

  According to the image blur correction device according to this aspect, it is possible to provide a small image blur correction device.

It is a figure which shows the image blurring correction apparatus 1 before the assembly of 1st Embodiment. It is a figure which shows the base part. It is a figure which shows the movable part. It is the figure which looked at FIG. 3 from the arrow A. It is a figure which shows the magnet support part. It is a figure which shows the image blur correction apparatus 1 after the assembly of 1st Embodiment. It is the figure which looked at FIG. 6 from the arrow B. FIG. It is a figure which shows operation | movement of the image blur correction apparatus 1 after the assembly of 1st Embodiment. It is the figure which expanded a part of FIG. It is a figure which shows the image blur correction apparatus 1 after the assembly of 2nd Embodiment. It is a figure which shows the relationship between the magnet and coil of 3rd Embodiment. It is a figure which shows the imaging device provided with the image blurring correction apparatus of this embodiment. It is a figure which shows the image blur correction apparatus etc. in an imaging device. It is an enlarged view of a tripod screw part periphery of an imaging device. It is a block diagram which shows the control structure of the digital camera of this embodiment.

  Hereinafter, an embodiment of the present invention will be described.

  FIG. 1 is a diagram illustrating an image shake correction apparatus 1 before assembly according to the first embodiment.

  The image shake correction apparatus 1 according to the first embodiment is disposed on the opposite side of the base unit 10 with respect to the base unit 10, the movable unit 30 movably supported by the base unit 10, and the movable unit 30. And a magnet support 50 fixed to the base 10.

  The first permanent magnet group 20 is fixed to the base portion 10, and the second permanent magnet group 60 is fixed to the magnet support portion 50. A coil group 40 is fixed to the movable portion 30. The first permanent magnet group 20 and the second permanent magnet group 60 are arranged so that the portions magnetized in different polarities face each other so that a magnetic field is generated in the facing space. The coil group 40 is disposed in a space where the first permanent magnet group 20 and the second permanent magnet group 60 face each other. In FIG. 1, the magnetic poles of the first permanent magnet group 20 and the second permanent magnet group 60 are the magnetic poles on the surface on the coil group 40 side, and the same applies to the following drawings.

  FIG. 2 is a diagram illustrating the base unit 10.

  The base part 10 is provided on the base body 11 and supports the magnet support part 30 with respect to the base part 11, for example, made of a magnetic material such as iron or an iron compound. First support portions 13a, 13b, 13c for supporting through-supporting holes 12a, 12b for inserting screws (not shown) and springs (not shown) for movably supporting the movable portion 30 with respect to the base portion 10. And having.

  Here, as shown in FIG. 2, an X direction as a first direction and a Y direction as a second direction orthogonal to the X direction are defined for the base unit 10.

  The first permanent magnet group 20 of the base unit 10 includes a first magnet unit 21 magnetized in the N pole on the coil group 40 side, and a coil group facing the first magnet unit 21 in the X direction. The second magnet part 22 magnetized to the S pole on the 40 side and the third magnet part spaced apart from the first magnet part 21 in the Y direction and magnetized to the N pole on the coil group 40 side The fourth magnet part 24, the fourth magnet part 24, which is opposed to the third magnet part 23 in the X direction and magnetized on the coil group 40 side as the S pole, and the fourth magnet part 24. A fifth magnet portion 25 which is magnetized with N poles on the coil group 40 side facing the Y direction. The first magnet unit 21 to the fifth magnet unit 25 are magnetized with opposite magnetic poles on the coil group 40 side and the opposite surface of the coil group 40.

The 4th magnet part 24 side of the 2nd magnet part 22 in the Y direction is formed shorter than the 1st magnet part 21, and the 1st as a notch which does not confront the 1st magnet part 21 is formed. There is a space 101a. Further, the second magnet part 22 side in the Y direction of the fourth magnet part 24 is formed shorter than the third magnet part 23, and serves as a notch that does not face the third magnet part 23. There is a second space 101b.

  3 is a view showing the movable portion 30, and FIG. 4 is a view of FIG.

  The movable part 30 includes, for example, a movable main body 31 made of a nonmagnetic material such as an aluminum alloy or a synthetic resin, a coil storage part 32 provided in a part of the periphery of the movable main body 31, and the movable part 30 as the base part 10. And second spring support portions 33a, 33b, and 33c for supporting a spring (not shown) for supporting the movement in a movable manner.

  Here, as shown in FIG. 3, the X direction as the first direction and the Y direction as the second direction orthogonal to the X direction are defined for the movable unit 30.

  The movable main body 31 is mounted with an image sensor 36 that photoelectrically converts light, a filter group 37, and an electric element 38. In the filter group 37, an ultrasonic filter 37a and an infrared cut filter 37b are arranged from the side away from the image sensor 36. Further, on the opposite side of the filter group 37 with respect to the image sensor 36, an electric element 38 that detects the amount of light received by the image sensor and processes a video signal or the like based on the amount of received light is mounted.

  The coil storage part 32 is provided in a part of the periphery of the movable body 31 and stores the coil group 40 in the recess. The movable body 31 has a length in the Z direction orthogonal to the X direction and the Y direction that is longer than that of the coil storage portion 32.

  The coil group 40 includes a first coil 41, a second coil 42, and a third coil 43. The first coil 41 is installed to face the first magnet part 21 and the second magnet part 22 of the base part 10 shown in FIG. The 2nd coil 42 is installed so that the 3rd magnet part 23 and the 4th magnet part 24 of the base 10 shown in FIG. 2 may be opposed. The 3rd coil 43 is installed so that the 4th magnet part 24 and the 5th magnet part 25 of the base part 10 shown in FIG. 2 may be opposed.

  FIG. 5 is a view showing the magnet support 50. However, the magnet support part 50 shown in FIG. 5 is the figure which looked at the magnet support part 50 shown in FIG. 1 from the movable part 30 side.

  The magnet support 50 is, for example, a flat support body 51 made of a magnetic material such as iron or an iron compound, and the magnet support 50 provided on the support body 51 to support the magnet support 30 with respect to the base 10. And through holes 52a and 52b through which screws (not shown) are inserted.

  Here, as shown in FIG. 4, an X direction as a first direction and a Y direction as a second direction orthogonal to the X direction are defined with respect to the magnet support portion 50.

  The second permanent magnet group 60 of the magnet support unit 50 is opposed to the first counter magnet unit 61 in which the coil group 40 side is magnetized to the S pole and the first counter magnet unit 61 in the X direction. The second counter magnet part 62 magnetized to the north pole on the coil group 40 side and the first counter magnet part 61 spaced apart from each other in the Y direction, and the coil group 40 side magnetized to the S pole A third counter magnet portion 63, a fourth counter magnet portion 64 which is opposed to the third counter magnet portion 63 in the X direction and is magnetized with the N pole on the coil group 40 side, and a ninth And a fifth counter magnet portion 65 which is magnetized with the south pole facing the coil group 40 in the Y direction. In addition, the 1st counter magnet part 61-the 5th counter magnet part 65 are magnetized by the opposite magnetic pole on the coil group 40 side and the surface on the opposite side of the coil group 40, respectively.

  The fourth counter magnet part 64 side in the Y direction of the second counter magnet part 62 has a notch and is shorter than the first counter magnet part 61. There is a third space 102a as a notch that is not opposed. Further, the second counter magnet part 62 side in the Y direction of the fourth counter magnet part 64 has a notch and is formed shorter than the third counter magnet part 63, and the third counter magnet part 63 There is a fourth space 102 b as a notch that does not face 63.

  FIG. 6 is a view showing the image blur correction apparatus 1 after assembly according to the first embodiment, and FIG. 7 is a view of FIG.

  In order to assemble the image blur correction device 1 of the first embodiment, screws (not shown) are respectively inserted into the through support holes 12a and 12b of the base 10 and the through screw holes 52a and 52b of the magnet support 50 shown in FIG. To do. Further, the support body 51 of the magnet support section 50 is supported by the plate 14 attached to the base body 11 of the base section 10. Accordingly, the support main body 51 is firmly supported by the base main body 11 at the three positions of the through support holes 12 a and 12 b and the plate 14. Furthermore, coil springs 15a, 15b, and 15c are installed on the first spring support portions 13a, 13b, and 13c of the base portion 10 and the second spring support portions 33a, 33b, and 33c of the movable portion 30, respectively.

  Furthermore, it is preferable that the base unit 10 and the movable unit 30 are supported by a form generally called ball support by sandwiching a plurality of spherical ball members (not shown). The movable part 30 can move with respect to the base part 10 by rolling the ball member.

  When the image blur correction device 1 is assembled, the first permanent magnet group 20 of the base 10 and the second permanent magnet group 60 of the magnet support 50 face each other in a separated state. Since the opposing magnets of the first permanent magnet group 20 and the second permanent magnet group 60 are respectively magnetized to opposite magnetic poles, a magnetic field is generated in the space between the magnets. The coil group 40 of the movable part 30 is disposed in a spaced space where the magnetic field is generated. Thus, the voice coil motor 70 is formed by arranging the first permanent magnet group 20, the second permanent magnet group 60, and the coil group 40.

  In the first embodiment, the first magnet unit 21 and the second magnet unit 22, the first coil 41, and the first counter magnet unit 61 and the second counter magnet unit 62 make the movable unit 30 the first unit. A first X-direction voice coil motor 71 is formed as a first voice coil motor that is moved in the X direction as one direction. Moreover, the 3rd magnet part 23 and the 4th magnet part 24, the 2nd coil 42, the 3rd counter magnet part 63, and the 4th counter magnet part 64 make the movable part 30 a 1st direction. A second X direction voice coil motor 72 is formed as a first voice coil motor to be moved in the X direction. Furthermore, the 4th magnet part 24 and the 5th magnet part 25, the 3rd coil 43, the 4th counter magnet part 64, and the 5th counter magnet part 65 make the movable part 30 a 2nd direction. A Y direction voice coil motor 73 is formed as a second voice coil motor to be moved in the Y direction.

  Therefore, the fourth magnet unit 24 and the fourth counter magnet unit 64 are included in both the second X-direction voice coil motor 72 and the Y-direction voice coil motor 73. In this way, at least one magnet portion of the first magnet group 20 and the second magnet group 60 is configured to be included in both the X direction voice coil motor 72 and the Y direction voice coil motor 73, and the X direction. Therefore, it is possible to reduce the number of parts, and to reduce the size and cost of the apparatus.

  In the case of the first embodiment, when a current is passed through the first coil 41 and the second coil 42, the movable unit 30 moves in the X direction. Further, when a current is passed through the third coil 43, the movable unit 30 moves in the Y direction.

  In the first embodiment, the first magnet portion 21 and the second magnet portion 22 of the first permanent magnet group 20 are one magnet, and the third magnet portion 23 and the fourth magnet portion 23 of the first permanent magnet group 20 are the fourth magnet. The magnet portion 24 and the fifth magnet portion 25 are one magnet, the first counter magnet portion 61 and the second counter magnet portion 62 of the second permanent magnet group 60 are one magnet, and the second permanent magnet group 60 is the second magnet. Although the three opposing magnet portions 63, the fourth opposing magnet portion 64, and the fifth opposing magnet portion 65 are magnetized as one magnet, they may be separated or partially separated from each other. By making it a separate body, processing becomes simple, and it becomes possible to manufacture easily at low cost. Further, the number of turns of the first coil 41, the second coil 42, and the third coil 43 may be changed according to the volume of the notch.

  In addition, the method of fixing each magnet to the base part 10 and the magnet support part 50 is not specifically limited, such as an adhesive agent, screwing, or caulking. In the first embodiment, as an example, the base part 10 and the magnet support part 50 are fixed by an adhesive.

  FIG. 8 is a view showing the operation of the image shake correction apparatus 1 after assembly according to the first embodiment, and FIG. 9 is an enlarged view of a part of FIG. In FIG. 8, the magnet support portion 50 is omitted so that the movement of the movable portion 30 is easy to see, and in FIG. 9, only the first magnet portion 21, the second magnet portion 22, and the movable main body portion 31 are shown. Yes.

  For example, it is assumed that the movable part 30 moves in the direction of arrow C with respect to the base part 10 as shown in FIG. Then, as shown in FIG. 9, the movable main body 31 approaches the first magnet unit 21 and the second magnet unit 22. If the length of the second magnet unit 22 in the Y direction is the same as the length of the first magnet unit 21 in the Y direction, the movable main body 31 and the second magnet unit 22 interfere with each other.

  Therefore, by forming the first space 101a by the notch formed by making the length of the second magnet portion 22 in the Y direction shorter than the length of the first magnet portion 21 in the Y direction, Interference between the movable main body 31 and the second magnet unit 22 can be avoided, and downsizing of the apparatus can be realized. In addition, if the first space 101a and the second space 101b as notches are provided on the center direction side of the base part 10 or the movable part 30, it is possible to further reduce the size of the apparatus. Further, when the notch is arranged at a position where at least one part overlaps the movable range of the movable part 30 by the voice coil motor 70, it is possible to further reduce the size of the apparatus.

  In addition, by providing a notch also about another magnet part, interference with the movable main body 31 and a magnet part, or a magnet part and another member can be avoided, and without narrowing the movable range of the movable part 30, an apparatus of the apparatus. Miniaturization can be realized.

  In 1st Embodiment, although demonstrated as a structure provided with a permanent magnet group in both the base part 10 and the magnet support part 50, if the output which can operate the movable part 30 can be output, a permanent magnet group will be only in one side. It is also possible to have a configuration comprising

  FIG. 6 is a diagram illustrating the image blur correction apparatus 1 after assembly according to the second embodiment.

  In the second embodiment, the first magnet unit 21 and the second magnet unit 22, the first coil 41, and the first counter magnet unit 61 and the second counter magnet unit 62 make the movable unit 30 the first unit. A first X-direction voice coil motor 71 is formed as a first voice coil motor that is moved in the X direction as one direction. Moreover, the 3rd magnet part 23 and the 6th magnet part 26, the 2nd coil 42, the 3rd counter magnet part 63, and the 6th counter magnet part 66 make the movable part 30 the 1st direction. A second X direction voice coil motor 72 is formed as a first voice coil motor to be moved in the X direction. Furthermore, the 4th magnet part 24 and the 5th magnet part 25, the 3rd coil 43, the 4th counter magnet part 64, and the 5th counter magnet part 65 make the movable part 30 a 2nd direction. A Y direction voice coil motor 73 is formed as a second voice coil motor to be moved in the Y direction.

  The third coil 43 of the Y-direction voice coil motor 73 is deformed in shape corresponding to the length of the magnet. For example, when the shape of the third coil 43 is made to correspond to the fourth magnet part 24 and the fifth magnet part 25, the third coil 43 corresponds to the fourth magnet part 24 as shown in FIG. The part to do becomes long and becomes a trapezoid shape with a short part corresponding to the fifth magnet part 25. If the third coil 43 is rectangular and interferes with other members M such as tripod holes, the shape of the third coil 43 is made to correspond to the fourth magnet part 24 and the fifth magnet part 25, By making the portion corresponding to the notch of the magnet portion the hypotenuse of the coil, the fifth coil 45 can avoid interference with other members M.

  As described above, the shape of the coil is made to correspond to the length of the magnet portion, and the portion corresponding to the notch of the magnet portion is set as the hypotenuse of the coil, thereby avoiding interference between the movable main body 31 and the other member M. Therefore, it is possible to reduce the size of the apparatus without narrowing the movable range of the movable part 30.

  FIG. 11 is a diagram illustrating a relationship between a magnet and a coil according to the third embodiment.

  In the third embodiment, the shape of the coil is deformed corresponding to the length of the magnet. For example, when the shape of the first coil 41 is made to correspond to the first magnet unit 21 and the second magnet unit 22, the first coil 41 corresponds to the first magnet unit 21 as shown in FIG. 11. The part to do becomes long, and it becomes a trapezoid shape with a short part corresponding to the second magnet part 22. When there is another member M at a position that interferes with the first coil 41 ′ before the shape is deformed, the shape of the first coil 41 is made to correspond to the first magnet part 21 and the second magnet part 22. Thus, the first coil 41 can avoid interference with other members M by setting the portion corresponding to the notch of the magnet portion as the hypotenuse of the coil.

  As described above, the shape of the coil is made to correspond to the length of the magnet portion, and the portion corresponding to the notch of the magnet portion is set as the hypotenuse of the coil, thereby avoiding interference between the movable main body 31 and the other member M. Therefore, it is possible to reduce the size of the apparatus without narrowing the movable range of the movable part 30.

  The image shake correction apparatus according to the present embodiment as described above can be used for an electronic photographing apparatus, particularly a digital camera or a video camera. The embodiment is illustrated below.

  FIG. 12 is a diagram illustrating an image pickup apparatus including the image shake correction apparatus according to the present embodiment, and FIG. 13 is a diagram illustrating an image shake correction apparatus and the like in the image pickup apparatus.

  As shown in FIGS. 12 and 13, a digital camera 80 as an image pickup apparatus including the image shake correction apparatus 1 according to an embodiment of the present invention includes a camera body 81 and a photographic lens L that is interchangeably attached to the camera body 81. The lens unit 82 is provided.

  In the following description, the incident optical axis entering the camera body 81 from the photographing lens L is indicated by “O”, the subject side is the front (front side) with respect to the incident optical axis O direction, and the imaging side is the rear (Back side). Further, among the directions orthogonal to the optical axis O, the left-right direction viewed from the front in the normal photographing state is the X direction as the first direction, and the up-down direction is the Y direction as the second direction. The X direction that is the first direction and the Y direction that is the second direction correspond to the X direction that is the first direction and the Y direction that is the second direction in the image blur correction apparatus 1.

  The camera body 81 includes an exterior body 83 that also serves as a camera body that accommodates members constituting the digital camera 80, and is a ring-shaped for mounting the lens unit 82 interchangeably at a front position on the incident optical axis O. A mount portion 84 is provided. The exterior body 83 is provided with a grip portion (not shown) that is held by the operator's right hand when photographing from the left side as viewed from the front. Various switches and buttons (not shown) such as a release button are arranged on the top of the grip portion.

  Further, the camera body 81 includes a battery storage chamber 92 for storing the battery 91 inside the exterior body 83. Further, behind the battery storage chamber 92, a control circuit for performing control of the entire camera, image processing, compression processing, data storage processing, a memory such as SDRAM, a circuit board on which a power supply circuit and the like are mounted (see FIG. (Not shown). Further, the camera body 81 incorporates a shake state detection device (not shown) of the camera body 81 using, for example, a gyro sensor.

  As shown in FIGS. 12 and 13, the camera body 81 further includes a liquid crystal panel 86 having a panel display window 85 on the back side of the exterior body 83. The liquid crystal panel 86 is a TFT (Thin Film Transistor) type rectangular display panel that displays various information such as various setting / adjustment items as an image in addition to a photographed image. A hot shoe 87 for mounting an optical viewfinder, an electronic viewfinder, an external flash, a microphone, or the like is disposed on the top of the exterior body 83.

  In the exterior body 83 of the camera body 81, as shown in FIG. 12, a focal plane shutter 88 and an imaging unit 89 are disposed. The image pickup unit 89 includes an image shake prevention device 1 that supports the image pickup element 36 such as a CCD or a CMOS sensor so as to be displaceable on the XY plane and uses a voice coil motor as an actuator. The image shake prevention apparatus 1 operates so as to cancel the detected force in the shake direction based on the shake signal from the shake detection apparatus. The image sensor 36 has a rectangular light receiving surface, and is arranged so that the long side of the light receiving surface is along the X direction. A tripod screw portion 90 is provided on the bottom surface of the exterior body 83.

  FIG. 14 is an enlarged view around the tripod screw portion.

  When the image blur correction apparatus 1 is provided in the digital camera 80, when it interferes with the tripod screw portion 90, the length of the fourth magnet portion 64 and the fifth magnet portion 65 in the X direction is shown in FIG. By making the heights different, the tripod screw portion 90 can be accommodated in the fifth space 103a.

  As described above, when the image blur correction device 1 is provided in the digital camera 80, when the member in the digital camera 80 and the image blur correction device 1 interfere with each other, the length of the magnet portion is changed to form a notch, By disposing a member in the cutout, interference between the member in the digital camera 80 and the image blur correction apparatus 1 can be avoided, and the digital camera 80 can be downsized.

  FIG. 15 is a block diagram showing an internal circuit of a main part of the digital camera 80 of the present embodiment. In the following description, the processing unit is configured by, for example, the CDS / ADC unit 124, the temporary storage memory 117, the image processing unit 118, and the like, and the storage unit is configured by a storage medium unit or the like.

  As shown in FIG. 15, the digital camera 80 is connected to the operation unit 112, the control unit 113 connected to the operation unit 112, and the control signal output port of the control unit 113 via buses 114 and 115. The imaging drive circuit 116, the temporary storage memory 117, the image processing unit 118, the storage medium unit 119, the display unit 120, and the setting information storage memory unit 121 are provided.

  The temporary storage memory 117, the image processing unit 118, the storage medium unit 119, the display unit 120, and the setting information storage memory unit 121 can mutually input and output data via the bus 122. In addition, the image pickup device 36 and the CDS / ADC unit 124 are connected to the image pickup drive circuit 116.

  The operation unit 112 includes various input buttons and switches, and notifies the control unit 113 of event information input from the outside (camera user) via these buttons. The control unit 113 is a central processing unit composed of, for example, a CPU, and has a built-in program memory (not shown) and controls the entire digital camera 80 according to a program stored in the program memory.

  The image pickup device 36 such as a CCD is driven and controlled by the image pickup drive circuit 116, converts the amount of light for each pixel of the object image formed via the photographing optical system 141 into an electric signal, and outputs it to the CDS / ADC unit 124. It is an element.

  The CDS / ADC unit 124 amplifies the electric signal input from the image sensor 36 and performs analog / digital conversion, and raw video data (Bayer data, hereinafter referred to as RAW data) obtained only by performing the amplification and digital conversion. Is output to the temporary storage memory 117.

  The temporary storage memory 117 is a buffer made of, for example, SDRAM, and is a memory device that temporarily stores RAW data output from the CDS / ADC unit 124. The image processing unit 118 reads out the RAW data stored in the temporary storage memory 117 or the RAW data stored in the storage medium unit 119, and includes distortion correction based on the image quality parameter specified by the control unit 113. It is a circuit that performs various image processing electrically.

  The storage medium unit 119 is detachably mounted with a card-type or stick-type storage medium such as a flash memory, and the RAW data transferred from the temporary storage memory 117 or the image processing unit 118 is attached to these flash memories. Image-processed image data is recorded and held.

  The display unit 120 is configured by a liquid crystal display monitor or the like, and displays captured RAW data, image data, an operation menu, and the like. The setting information storage memory unit 121 includes a ROM unit that stores various image quality parameters in advance, and a RAM unit that stores image quality parameters read from the ROM unit by an input operation of the operation unit 112.

  By adopting the lens system of the present invention as the photographic optical system 141, the digital camera 80 configured as described above can be a small-sized imaging device suitable for moving image capturing.

  In addition, this invention is not limited by this embodiment. That is, in the description of the embodiments, many specific details are included for illustration, but those skilled in the art can add various variations and modifications to these details without departing from the scope of the present invention. It will be understood that this is not exceeded. Accordingly, the exemplary embodiments of the present invention have been described without loss of generality or limitation to the claimed invention.

DESCRIPTION OF SYMBOLS 1 ... Image blur correction apparatus 10 ... Base part 11 ... Base main body 12a, 12b ... Through support hole 13a, 13b ... 1st spring support part 15a, 15b ... Coil spring 20 ... 1st permanent magnet group (permanent magnet)
21 ... 1st magnet part 22 ... 2nd magnet part 23 ... 3rd magnet part 24 ... 4th magnet part 25 ... 5th magnet part 30 ... Movable part 31 ... Movable main body 32 ... Coil accommodating part 33a, 33b ... second spring support 36 ... imaging element 37 ... filter group 37a ... ultrasonic filter 37b ... infrared cut filter 38 ... electric element 40 ... coil group 41 ... first coil 42 ... second coil 43 ... third Coil 50 ... magnet support 51 ... support bodies 52a, 52b ... through screw hole 60 ... second permanent magnet group (permanent magnet)
61 ... 1st counter magnet part 62 ... 2nd counter magnet part 63 ... 3rd counter magnet part 64 ... 4th counter magnet part 65 ... 5th counter magnet part 70 ... Voice coil motor 71 ... 1st X direction voice coil motor (first voice coil motor)
72. Second X direction voice coil motor (first voice coil motor)
73 ... Y direction voice coil motor (second voice coil motor)
80 ... Digital camera (imaging device)
DESCRIPTION OF SYMBOLS 81 ... Camera body 82 ... Lens unit 83 ... Exterior body 84 ... Mount part 85 ... Panel display window 86 ... Liquid crystal panel 87 ... Hot shoe 88 ... Focal plane shutter 89 ... Imaging unit 90 ... Tripod screw part 91 ... Battery 92 ... Battery Storage chamber 101a ... first space (notch)
101b ... second space (notch)
102a ... third space (notch)
102b ... fourth space (notch)
103a ... fifth space (notch)
103b ... Sixth space (notch)
DESCRIPTION OF SYMBOLS 112 ... Operation part 113 ... Control part 114, 115 ... Bus 116 ... Imaging drive circuit 117 ... Temporary storage memory 118 ... Image processing part 119 ... Storage medium part 120 ... Display part 121 ... Setting information storage memory part 122 ... Bus 124 ... CDS / ADC unit 141 ... shooting optical system

Claims (10)

A base including a permanent magnet;
A movable part in which a coil is installed at a position facing the permanent magnet;
With
The permanent magnet and the coil constitute a voice coil motor,
The image blur correction apparatus, wherein the permanent magnet has a notch. The permanent magnet is
The first magnet part and the coil side are composed of a second magnet part magnetized with a magnetic pole opposite to the first magnet part,
The image blur correction device according to claim 1, wherein the notch is formed by making the first magnet portion and the second magnet portion have different lengths. The image blur correction device according to claim 1, wherein the cutout is provided on a center direction side of the base portion or the movable portion. The movable part is provided with an image sensor that photoelectrically converts light,
The image blur according to any one of claims 1 to 3, wherein the notch is arranged at a position where at least one part overlaps a movable range of the movable part by the voice coil motor. Correction device. The voice coil motor is
A first voice coil motor that moves the movable part in a first direction;
A second voice coil motor that moves the movable part in a second direction;
Including
The at least one of the first magnet part or the second magnet part is included in both the first voice coil motor and the second voice coil motor. The image blur correction device according to any one of 4. 6. The image blur correction device according to claim 2, wherein the first magnet unit and the second magnet unit are separate magnets. The image blur correction apparatus according to claim 1, wherein the coil is formed in a trapezoidal shape having a portion corresponding to the notch as a hypotenuse. The image blur correction apparatus according to claim 1, wherein the coil increases the number of turns according to the volume of the notch. A magnet support unit having opposed permanent magnets that are opposed to and spaced apart from the permanent magnets with the movable part interposed therebetween, and the magnetic poles on the movable part side are different from the magnetic poles on the movable part side of the permanent magnets;
The image blur correction apparatus according to claim 1, further comprising: The image blur correction device according to any one of claims 1 to 9,
A body having the image blur correction device;
An imaging apparatus comprising:

Images