Image blur correction device and imaging equipment

Abstract

A fixed body fixed in a housing, a movable body including an imaging element and moving relative to the fixed body in a direction orthogonal to the optical axis direction, and a bendable heat transfer sheet having parts mounted on the fixed body and the movable body and transferring heat generated in the movable body to the fixed body, wherein the thickness direction of the heat transfer sheet is orthogonal to the optical axis direction. Therefore, when the movable body moves relative to the fixed body in a direction orthogonal to the optical axis direction, no twisting occurs in the heat transfer sheet, so after ensuring a good heat transfer state from the movable body to the fixed body, the load applied to the movable body when the movable body moves relative to the fixed body can be suppressed, thereby promoting a reduction in power consumption.

Description

Technical Field

[0001] The present technology relates to an image blur correction device for correcting image blur by moving a movable body including an imaging element in a direction orthogonal to an optical axis direction relative to a fixed body, and an imaging apparatus including the image blur correction device. Background Art

[0002] There are cases where an image blur correction device for correcting image blur occurring at the time of imaging to improve image quality is provided in an imaging apparatus such as a video camera and a still camera.

[0003] There is an image blur correction device in which a movable body having an imaging element moves relative to a fixed body in a direction orthogonal to an optical axis direction to perform image blur correction, and heat generated in the movable body when the movable body moves relative to the fixed body is transferred to the fixed body through a heat transfer member (for example, refer to Patent Document 1).

[0004] The imaging element is constructed as a part of the element unit together with the circuit board for driving the imaging element, and heat is generated from the imaging element, the circuit board, etc. when the imaging element is driven, and the generated heat may affect the driving of the imaging element or affect the stable driving state of the circuit board. Therefore, as described above, by transferring the heat from the movable body to the fixed body, the influence of the heat on the movable body is reduced to ensure the good operating state of the movable body and ensure the stable driving state of the imaging element and the circuit board.

[0005] In the imaging device disclosed in Patent Document 1, a fixed body and a movable body are connected by four flexible members serving as heat transfer members, heat is transferred from the movable body to the fixed body through the flexible members, and heat is radiated from the fixed body also serving as a heat radiation member. When the movable body moves relative to the fixed body in a direction orthogonal to the optical axis direction, the flexible members bend according to the moving direction and amount of the movable body to maintain the connection state between the fixed body and the movable body.

[0006] Reference List

[0007] Patent Literature

[0008] Patent document 1: JP5168047B Summary of the invention

[0009] Technical issues

[0010] However, in a structure in which a fixed body and a movable body are connected via a heat transfer member, when the movable body moves relative to the fixed body in a direction orthogonal to the optical axis direction, since the heat transfer member bends according to the movement of the movable body, torsion is generated, and thus a reaction force that bends the heat transfer member is generated, and the generated reaction force is applied from the heat transfer member to the movable body as a load for the movement.

[0011] The load of the movement of the movable body becomes a driving load in the movable body, and the electric power required for the movement of the movable body needs to be increased according to the magnitude of the load. The increase in the load leads to an increase in power consumption.

[0012] Therefore, an image blur correction device and an imaging apparatus of the present technology aim to promote reduction in power consumption by ensuring a good heat transfer state from a movable body to a fixed body and then suppressing a load applied to the movable body when the movable body moves relative to the fixed body.

[0013] Solution to the problem

[0014] First, according to the present technology, an image blur correction device includes: a fixed body fixed in a housing, a movable body including an imaging element and moving relative to the fixed body in a direction orthogonal to the optical axis direction, and a bendable heat transfer sheet having parts installed on the fixed body and the movable body and transferring heat generated in the movable body to the fixed body, wherein the thickness direction of the heat transfer sheet is orthogonal to the optical axis direction.

[0015] Therefore, when the movable body moves relative to the fixed body in the direction orthogonal to the optical axis direction, twisting does not occur in the heat transfer sheet.

[0016] Second, in the above-mentioned image blur correction device, it is desired that a fixed side mounting portion mounted on the fixed body, a movable side mounting portion mounted on the movable body, and a deformation portion located between the fixed side mounting portion and the movable side mounting portion are provided in the heat transfer sheet, wherein the deformation portion is formed into a curved shape.

[0017] Therefore, the deformation portion is easily deformed along with the movement of the movable body relative to the fixed body.

[0018] Thirdly, in the above-mentioned image blur correction device, it is desirable that the heat transfer sheet is formed by stacking a plurality of sheet-like members in the thickness direction.

[0019] Therefore, when the deformed portion has been deformed, the sheet-like member can be separated in the thickness direction, and the amount of heat transfer can be increased without the deformed portion becoming too rigid even when the thickness increases.

[0020] Fourth, in the above-mentioned image blur correction device, it is desired that the fixed side mounting portion and the movable side mounting portion are positioned opposite to each other, and both ends of the deformable portion are respectively connected to one end of the fixed side mounting portion and one end of the movable side mounting portion, and include a first portion connected to the fixed side mounting portion and a second portion connected to the movable side mounting portion, wherein the first portion is bent at an acute angle relative to the fixed side mounting portion, and the second portion is bent at an acute angle relative to the movable side mounting portion.

[0021] Therefore, when the deformed portion has been deformed, the sheet-like member is easily separated in the thickness direction.

[0022] Fifth, in the above-mentioned image blur correction device, it is desired that the heat transfer plate is formed into a ring shape, the deformation part is arranged as a pair, the two ends of one of the deformation parts are respectively connected to one end of the fixed side mounting part and one end of the movable side mounting part, and the two ends of the other deformation part of the deformation part are respectively connected to the other end of the fixed side mounting part and the other end of the movable side mounting part.

[0023] Therefore, the pair of deformation portions are easily deformed equally.

[0024] Sixth, in the above-mentioned image blur correction device, it is desirable that at least two heat transfer sheets are provided, and at least one of the heat transfer sheets and at least another of the heat transfer sheets are arranged in an orthogonal orientation in a direction orthogonal to the optical axis direction.

[0025] Therefore, when the movable body moves relative to the fixed body, the bias of the load in a specific moving direction of the movable body is reduced.

[0026] Seventh, in the above-mentioned image blur correction device, it is desired that a flexible printed wiring board is connected to the movable body, the flexible printed wiring board is bent in the optical axis direction so that parts of the flexible printed wiring board are opposite to each other, and the fixed side mounting portion and the movable side mounting portion are positioned opposite to each other in a direction orthogonal to both the optical axis direction and the width direction of the flexible printed wiring board.

[0027] Therefore, a load applied from the flexible printed wiring board to the movable body when the movable body moves relative to the fixed body in the width direction of the flexible printed wiring board is hardly amplified.

[0028] Eighth, in the above-mentioned image blur correction device, it is desirable that at least two heat transfer sheets are provided on the back side of the imaging element, and the two heat transfer sheets are arranged on opposite sides of the center of the imaging element on the diagonal line of the imaging element.

[0029] Therefore, the loads generated in the two heat transfer sheets sandwiching the center of the imaging element are arranged on the diagonal line of the imaging element.

[0030] Ninth, in the above-mentioned image blur correction device, it is expected that the fixed body is provided with a fixed side heat transfer plate, the movable body is provided with a movable side heat transfer plate, and each part of the heat transfer sheet is mounted on the fixed side heat transfer plate and the movable side heat transfer plate.

[0031] Therefore, the heat generated in the movable body is transferred to the fixed body through the fixed-side heat transfer plate, the heat transfer sheet, and the movable-side heat transfer plate.

[0032] Tenth, in the above-mentioned image blur correction device, it is desirable to use a graphite sheet as the heat transfer sheet.

[0033] Therefore, the heat transfer sheet has high heat resistance, low weight and high tensile strength.

[0034] Eleventh, an imaging device according to the present technology includes an image blur correction device, which corrects image blur in a manner that a movable body including an imaging element moves relative to a fixed body fixed in a housing in a direction orthogonal to the optical axis direction, wherein the image blur correction device includes a flexible heat transfer sheet, the heat transfer sheet having parts mounted on the fixed body and the movable body and transferring heat generated in the movable body to the fixed body, and wherein a thickness direction of the heat transfer sheet is orthogonal to the optical axis direction.

[0035] Therefore, in the image blur correction device, when the movable body moves relative to the fixed body in the direction orthogonal to the optical axis direction, twisting does not occur in the heat transfer sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is with Figures 2 to 24 A diagram showing the image blur correction device and the imaging apparatus of the present technology together, and is a perspective view of the imaging apparatus.

[0037] Figure 2 It is an exploded perspective view of the image blur correction device.

[0038] Figure 3 It is a three-dimensional diagram of an image blur correction device.

[0039] Figure 4 The image blur correction device is a device in which the second flexible printed wiring board and the third flexible printed wiring board are omitted. Figure 2 Exploded perspective view from the opposite direction.

[0040] Figure 5The image blur correction device is a device in which the second flexible printed wiring board and the third flexible printed wiring board are omitted. Figure 3 Exploded perspective view from the opposite direction.

[0041] Figure 6 The image blur correction device is Figure 3 A stereogram viewed in the direction opposite to the direction of the image.

[0042] Figure 7 It is a three-dimensional diagram of a heat transfer sheet.

[0043] Figure 8 The diagram shows an example in which the whole heat transfer sheet is formed into one piece and a state in which the heat transfer sheet is unfolded.

[0044] Fig. 9 is with Figures 10 to 14 The diagrams together show the deformed state of the heat transfer sheet and are a rear view of the heat transfer sheet before deformation.

[0045] Fig.10 : is a rear view showing a state of the sheet-like member when the heat transfer sheet has been deformed when the movable body moves in the lateral direction.

[0046] Fig.11 It is a rear view showing the angle and reaction force of the heat transfer plate before deformation.

[0047] Fig.12 is a rear view showing the angle in the heat transfer sheet when the heat transfer sheet has been deformed when the movable body moves in the lateral direction.

[0048] Fig.13 is a rear view showing a state when the movable body moves in one of the upward direction and the downward direction and thus the heat transfer sheet is deformed.

[0049] Fig.14 is a rear view showing a state when the movable body moves in the other of the upward direction and the downward direction and thus the heat transfer sheet is deformed.

[0050] Fig.15 is a rear view showing a first arrangement example of the heat transfer sheet.

[0051] Fig.16 is a rear view showing a second arrangement example of the heat transfer sheet.

[0052] Fig.17 is with Figures 18 to 23 The figures showing the modified examples of the heat transfer sheet together are perspective views showing the first modified example.

[0053] Fig.18 is a perspective view showing a second modification example.

[0054] Fig.19 is a perspective view showing a third modification example.

[0055] Fig. 20 It is a rear view of the fourth modified example.

[0056] Fig.21 It is a rear view of the fifth modified example.

[0057] Fig. 22 It is a rear view of the sixth modified example.

[0058] Fig.23 is a rear view showing the seventh modification example.

[0059] Fig.24 is a block diagram of an imaging device. DETAILED DESCRIPTION

[0060] Hereinafter, forms of an image blur correction device and an imaging apparatus for realizing the present technology will be described with reference to the drawings.

[0061] In the forms for carrying out the present invention described below, the imaging apparatus of the present technology is applied to a still camera, and the image blur correction device of the present technology is applied to an image blur correction device provided in the still camera.

[0062] Furthermore, the application scope of the imaging device and the image blur correction device of the present technology is not limited to still cameras and image blur correction devices provided in still cameras. The imaging device and the image blur correction device of the present technology can be widely applied to imaging devices included in various electronic devices such as cellular phones and portable information terminals or image blur correction devices provided in these imaging devices.

[0063] In the following description, it is assumed that the front direction, rear direction, upward direction, downward direction and lateral direction are indicated in the direction viewed by the photographer when imaging using a still camera. Therefore, the subject side becomes the front side and the photographer side becomes the back side.

[0064] However, the forward direction, the rearward direction, the upward direction, the downward direction, and the lateral direction which will be indicated below are for convenience of description, and implementation of the present technology is not limited to these directions.

[0065] In addition, the lenses to be indicated below include a lens configured as a single lens and a lens configured as a lens group of a plurality of lenses.

[0066] <Schematic Configuration of Imaging Apparatus>

[0067] The imaging device 1 includes a main body 2 and a lens barrel 60 (see Figure 1). The lens barrel 60 is, for example, a replaceable lens detachably attached to the main body 2. In addition, the present technology can also be applied to a type in which a lens unit having the same structure as the internal structure of the lens barrel 60 is incorporated inside the main body and a foldable type in which the lens unit protrudes from or retracts into the main body.

[0068] The main body 2 includes each necessary part which is arranged inside or outside the housing 3 .

[0069] For example, various operation parts 4, 4, ... are arranged on the upper surface and the back surface of the housing 3. For example, a power button, a shutter button, a zoom knob, a mode switching knob, etc. are provided as the operation parts 4, 4, ...

[0070] A display (display unit) not shown is arranged on the back surface of the housing 3 .

[0071] A circular opening 3 a is formed in the front surface of the housing 3 , and a peripheral portion of the opening 3 a is provided as a mounting portion 5 for mounting the lens barrel 60 .

[0072] The lens barrel 60 includes an approximately cylindrical outer barrel 61 having an axial direction corresponding to the front-rear direction and various necessary parts mounted on or supported by the inner and outer sides of the outer barrel 61. The axial direction of the lens barrel 60 corresponds to the optical axis direction of the entire imaging device 1.

[0073] The rear end of the outer barrel 61 is provided with a protrusion 62 for mounting. The lens barrel 60 is assembled into the main body 2 by coupling the protrusion 62 for mounting to the mounting portion 5, for example, according to a bayonet coupling.

[0074] Operation rings 63, 63 serving as a zoom ring and a focus ring are provided in the lens barrel 60. The operation rings 63, 63 are rotatably supported by the outer barrel 61, and zooming and focusing are performed by rotating the operation rings 63, 63.

[0075] The lens barrel 60 includes, for example, a plurality of lenses (lens groups) 64, 64, ... In addition, Figure 1 Only the front lens 64 is shown. The lenses 64, 64, ... are respectively positioned in the optical axis direction (front-rear direction) and include a movable lens (movable lens group) movable in the optical axis direction and a fixed lens (fixed lens group) not movable in the optical axis direction.

[0076] <Structure of Image Blur Correction Device>

[0077] The image blur correction device 6 for correcting image blur is disposed on the main body 2 (see Figure 1 The image blur correction device 6 includes a fixed body 7 and a movable body 8 (refer to Figures 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 orthogonal to the optical axis direction.

[0078] The fixed body 7 includes a base plate 9 , first magnets 10 , 10 , second magnets 11 , 11 , . . . , a first fixed-side heat transfer plate 12 , and a second fixed-side heat transfer plate 13 .

[0079] The base plate 9 includes a base portion 14 formed in a plate shape facing the front-rear direction, a first restricting portion 15 protruding forward from an upper end of the base portion 14 , and a second restricting portion 16 protruding forward from a lateral portion of one side of the base portion 14 .

[0080] The opening 14a is formed to penetrate the base 14 frontward and rearward. The lateral portion of the base 14 on the side opposite to the side provided with the second restricting portion 16 is provided as a first magnet mounting portion 14b, and the lower end of the base 14 is provided as a second magnet mounting portion 14c.

[0081] Cylindrical limiting protrusions 17, 17, ... are installed on the periphery of the front surface of the base 14. For example, four limiting protrusions 17, 17, ... are provided, one is installed at the upper end of the lateral portion of the side of the base 14 opposite to the side where the second limiting portion 16 is provided, and three are installed separately and laterally at the lower end of the base 14.

[0082] The two first magnets 10 are formed into a longitudinally elongated shape, arranged transversely and mounted on the first magnet mounting portion 14b of the substrate 9. The second magnets 11 are formed into a transversely elongated shape and are laterally separated, and the two second magnets 11 are each arranged vertically and mounted on the second magnet mounting portion 14c of the substrate 9.

[0083] The first fixed-side heat transfer plate 12 is formed of, for example, a metal material having high thermal conductivity, and is composed of a laterally elongated mounting plate portion 12a facing in the front-rear direction and a mounting plate portion 12b protruding forward from the lower end of the mounting plate portion 12a. In the first fixed-side heat transfer plate 12, the mounting plate portion 12a is mounted on the base 14 from the back side of the upper side of the opening 14a in the base plate 9, and the mounting plate portion 12b protrudes from the opening 14a to the side in front of the base 14.

[0084] The second fixed-side heat transfer plate 13 is formed of, for example, a metal material having high thermal conductivity, and is composed of a laterally elongated mounting plate portion 13a facing in the front-rear direction and a mounting plate portion 13b protruding forward from the upper end of the mounting plate portion 13a. In the second fixed-side heat transfer plate 13, the mounting plate portion 13a is mounted on the base 14 from the back side of the lower side of the opening 14a in the base plate 9, and the mounting plate portion 13b protrudes from the opening 14a to the side in front of the base 14. In addition, the first fixed-side heat transfer plate 12 and the second fixed-side heat transfer plate 13 may be formed integrally with the base plate 9.

[0085] The movable body 8 includes an element unit 18 , a first movable-side heat transfer plate 19 , and a second movable-side heat transfer plate 20 .

[0086] The element unit 18 is configured such that each necessary part is mounted on or supported by a holding base 21. The holding base 21 is formed in a substantially rectangular frame shape. A holding frame 22 of a substantially rectangular shape is mounted on the front surface of the holding base 21.

[0087] The imaging element 23 is held on the inner side of the holding base 21 and the holding frame 22. As the imaging element 23, for example, a charge coupled device (CCD), a complementary metal oxide semiconductor (CMOS), or the like can be used.

[0088] The board base 24 formed in a rectangular plate shape is mounted on the back surface of the holding base 21. The circuit board 25 is mounted on the back surface of the board base 24 at a portion other than the outer periphery.

[0089] A frame 26 covering the periphery of the circuit board 25 is mounted on the periphery of the back side of the holding base 21. The frame 26 includes a rectangular frame-shaped portion 27, a first coil mounting portion 28 protruding laterally from a portion near the rear end of the frame-shaped portion 27, and a second coil mounting portion 29 protruding downward from a portion near the rear end of the frame-shaped portion 27.

[0090] Arrangement recesses 26a, 26a, ... are formed in the first coil mounting portion 28 and the second coil mounting portion 29 in the frame 26. The arrangement recesses 26a, 26a, ... are positioned to be separated vertically or laterally.

[0091] The longitudinally elongated first coil 30 is mounted on the first coil mounting portion 28 , and the transversely elongated second coils 31 , 31 are transversely separated and mounted on the second coil mounting portion 29 .

[0092] The first movable side heat transfer plate 19 is formed of, for example, a metal material having high thermal conductivity, and is composed of a laterally elongated mounting plate portion 19a facing in the front-rear direction and a mounting plate portion 19b protruding rearward from the lower end of the mounting plate portion 19a. In the first movable side heat transfer plate 19, the mounting plate portion 19a is mounted on a portion on the upper end side of the circuit board 25 from the back through a heat radiating sheet (not shown).

[0093] The second movable side heat transfer plate 20 is formed of, for example, a metal material having high thermal conductivity, and is composed of a laterally elongated mounting plate portion 20a facing in the front-rear direction and a mounting plate portion 20b protruding rearward from the upper end of the mounting plate portion 20a. In the second movable side heat transfer plate 20, the mounting plate portion 20a is mounted on a portion of the lower end side of the circuit board 25 from the back through a heat radiation sheet (not shown). In addition, the first movable side heat transfer plate 19 and the second movable side heat transfer plate 20 may be formed integrally with a portion of the element unit 18 (e.g., the frame 26).

[0094] The movable body 8 configured as above is supported by the fixed body 7 on the front surface side of the base plate 9 so that the movable body 8 can move in the direction orthogonal to the optical axis direction.

[0095] When the movable body 8 is supported by the fixed body 7, the frame-shaped portion 27 of the frame 26 is located on the inner surface side of the first limiting portion 15 and the second limiting portion 16 of the substrate 9, and the limiting protrusions 17, 17, ... installed on the substrate 9 are respectively located at the arrangement recesses 26a, 26a, ..., so that the excessive movement of the movable body 8 relative to the fixed body 7 in a direction orthogonal to the optical axis direction is limited by the first limiting portion 15, the second limiting portion 16 and the limiting protrusions 17, 17, ...

[0096] In addition, in a state where the movable body 8 is supported by the fixed body 7, the pressing plate 32 is mounted on the limiting protrusions 17, 17, ... from the front side by screw connection or the like. The pressing plate 32 is formed by a longitudinally extending portion 32a extending vertically in a substantially L-shape and a transversely extending portion 32b extending transversely. In a state where the pressing plate 32 is mounted on the limiting protrusions 17, 17, ..., the first coil 30 is blocked from the front side by the longitudinally extending portion 32a, and the second coils 31, 31 are blocked from the front side by the transversely extending portion 32b.

[0097] The pressing plate 32 is mounted on the restricting protrusions 17 , 17 , . . . from the front side to prevent the movable body 8 from being separated from the fixed body 7 to the front side.

[0098] The first coil 30 and the second coils 31 and 31 of the movable body 8 are positioned to be opposed to the first magnet 10 and the second magnet 11 , 11 , . . . of the fixed body 7 , respectively.

[0099] The first flexible printed wiring board 33 is connected to each predetermined portion in a state where the movable body 8 is supported by the fixed body 7. The first flexible printed wiring board 33 has a thickness direction corresponding to the front-rear direction, and includes a first connection portion 34 extending vertically, a second connection portion 35 extending laterally, and a conductive portion 36 arranged in a line with the first connection portion 34 in the lateral direction, and the lower end of the first connection portion 34 and the lower end of the conductive portion 36 are connected to one end of the second connection portion 35 in the lateral direction.

[0100] In the first flexible printed wiring board 33, the first connection portion 34 is connected to the first coil 30 from the front side, and the second connection portion 35 is connected to the second coils 31 and 31 from the front side. The conductive portion 36 is bent so that the portions are opposed to each other in the optical axis direction (front-rear direction), a portion thereof extends rearward from the opening portion 14a of the substrate 9, and an end portion thereof is connected to a drive circuit board (power supply board) not shown in the figure arranged on the rear side of the fixed body 7.

[0101] Current is supplied from the driving circuit board to the first coil 30 and the second coils 31 and 31 through the first flexible printed wiring board 33 .

[0102] When current is supplied to the first coil 30, the movable body 8 moves relative to the fixed body 7 in the lateral direction in association with the magnetic field generated by the first magnet 10, and when current is supplied to the second coils 31 and 31, the movable body 8 moves relative to the fixed body 7 in the up-down direction in association with the magnetic field generated by the second magnet 11. Here, when current is supplied to the second coils 31 and 31 in opposite directions, an upward thrust is generated by one of the second coils 31 and one of the second magnets 11 and 11, a downward thrust is generated by the other of the second coils 31 and the other of the second magnets 11 and 11, and the movable body 8 moves relative to the fixed body 7 in a direction inclined in the upward, downward, and lateral directions. Therefore, the movable body 8 can move relative to the fixed body 7 in an arbitrary direction within a plane orthogonal to the optical axis direction.

[0103] In addition, in a state where the movable body 8 is supported by the fixed body 7, the second flexible printed wiring board 37 and the third flexible printed wiring board 38 are arranged in the lateral direction (see Figure 6 ) is connected to the circuit board 25. The second flexible printed wiring board 37 and the third flexible printed wiring board 38 have a thickness direction corresponding to the front-rear direction and are bent so that the respective parts are opposed to each other in the optical axis direction, and a part thereof extends backward from the opening 14a of the substrate 9, and the other end thereof is connected to the driving circuit board (power supply board). For example, signal transmission between the circuit board 25 and the driving circuit board is performed by the second flexible printed wiring board 37 and the third flexible printed wiring board 38.

[0104] The first heat transfer sheet 39 is mounted on the first fixed-side heat transfer plate 12 mounted on the base plate 9 in the fixed body 7 and the first movable-side heat transfer plate 19 mounted on the circuit board 25 in the movable body 8 (see Figures 4 to 6 ).

[0105] The first heat transfer sheet 39 is formed of a plurality of sheet-like members 40, 40, ... made of, for example, graphite (see Figure 7The first heat transfer sheet 39 is formed by overlapping sheet members 40, 40, ... in the thickness direction, bending them into a predetermined shape, and joining both ends of the sheet members 40, 40, ... in the longitudinal direction to form a ring shape penetrating front and back.

[0106] The first heat transfer sheet 39 is composed of a fixed-side mounting portion 43 and a movable-side mounting portion 44 which are vertically positioned relative to each other, and a pair of deformation portions 45 , 45 located between the fixed-side mounting portion 43 and the movable-side mounting portion 44 .

[0107] The fixed side mounting portion 43 and the movable side mounting portion 44 face in the up-down direction, the fixed side mounting portion 43 is located above the movable side mounting portion 44, the fixed side mounting portion 43 is joined to the bottom surface of the mounting plate portion 12b in the first fixed side heat transfer plate 12, and the movable side mounting portion 44 is joined to the top surface of the mounting plate portion 19b in the first movable side heat transfer plate 19.

[0108] The deformation parts 45, 45 are positioned to be separated laterally, and the upper ends of the deformation parts 45, 45 are connected to the left and right ends of the fixed-side mounting part 43, respectively, and the lower ends of the deformation parts 45, 45 are connected to the left and right ends of the movable-side mounting part 44, respectively. Approximately the upper half of the deformation part 45 is provided as a first part 45a, and approximately the lower half thereof is provided as a second part 45b, the first part 45a is bent at an acute angle relative to the fixed-side mounting part 43, and the second part 45b is bent at an acute angle relative to the movable-side mounting part 44. The lower end of the first part 45a of the deformation part 45 is connected to the upper end of the second part 45b, and the connection part 45c is bent in a direction opposite to the bending direction of the first part 45a relative to the fixed-side mounting part 43 and the bending direction of the second part 45b relative to the movable-side mounting part 44. Therefore, the deforming parts 45 , 45 are formed in a V-shape open outward in the lateral direction, and the distance between the connecting parts 45 c , 45 c is shorter than the length of the fixed-side mounting part 43 and the movable-side mounting part 44 in the lateral direction.

[0109] As described above, since the deformable portions 45, 45 of the first heat transfer sheet 39 are not joined to any part of the fixed body 7 and the movable body 8, the deformable portions 45, 45 can be deformed when the movable body 8 moves relative to the fixed body 7 in a direction orthogonal to the optical axis direction.

[0110] In the first heat transfer sheet 39, at least the deformable portions 45, 45 overlap when the plurality of sheet members 40, 40, ... are not joined. The fixed side mounting portion 43 and the movable side mounting portion 44 overlap when the plurality of sheet members 40, 40, ... are joined or not joined.

[0111] In addition, the second heat transfer sheet 46 is mounted on the second fixed-side heat transfer plate 13 mounted on the base plate 9 in the fixed body 7 and the second movable-side heat transfer plate 20 mounted on the circuit board 25 in the movable body 8 in a state where the second heat transfer sheet 46 is arranged in the horizontal direction. The second heat transfer sheet 46 has the same configuration as the first heat transfer sheet 39 and is arranged in an inverted state relative to the first heat transfer sheet 39.

[0112] The second heat transfer sheet 46 is formed by overlapping a plurality of sheet members 47, 47, ... made of, for example, graphite in the thickness direction, bending them into a predetermined shape, and joining both ends of the sheet members 47, 47, ... in the longitudinal direction to form a ring shape penetrating front and back.

[0113] The second heat transfer sheet 46 is composed of a fixed-side mounting portion 50 and a movable-side mounting portion 51 which are positioned vertically opposite to each other, and a pair of deformation portions 52 , 52 located between the fixed-side mounting portion 50 and the movable-side mounting portion 51 .

[0114] The fixed-side mounting portion 50 and the movable-side mounting portion 51 face in the up-down direction, the fixed-side mounting portion 50 is located below the movable-side mounting portion 51, the fixed-side mounting portion 50 is joined to the top surface of the mounting plate portion 13b in the second fixed-side heat transfer plate 13, and the movable-side mounting portion 51 is joined to the bottom surface of the mounting plate portion 20b in the second movable-side heat transfer plate 20.

[0115] The deformation parts 52, 52 are positioned to be separated laterally, the lower ends of the deformation parts 52, 52 are connected to the left and right ends of the fixed-side mounting part 50, respectively, and the upper ends of the deformation parts 52, 52 are connected to the left and right ends of the movable-side mounting part 51, respectively. Approximately the lower half of the deformation part 52 is provided as a first part 52a, and approximately the upper half thereof is provided as a second part 52b, the first part 52a is bent at an acute angle relative to the fixed-side mounting part 50, and the second part 52b is bent at an acute angle relative to the movable-side mounting part 51. The upper end of the first part 52a of the deformation part 52 is connected to the lower end of the second part 52b, and the connection part 52c is bent in a direction opposite to the bending direction of the first part 52a relative to the fixed-side mounting part 50 and the bending direction of the second part 52b relative to the movable-side mounting part 51. Therefore, the deformed portions 52 , 52 are formed in a V-shape open outward in the lateral direction, and the distance between the connecting portions 52 c , 52 c is shorter than the length of the fixed-side mounting portion 50 and the movable-side mounting portion 51 in the lateral direction.

[0116] As described above, since the deformable portions 52, 52 of the second heat transfer sheet 46 are not joined to any part of the fixed body 7 and the movable body 8, the deformable portions 52, 52 can be deformed when the movable body 8 moves relative to the fixed body 7 in a direction orthogonal to the optical axis direction.

[0117] In the second heat transfer sheet 46, at least the deformable portions 52, 52 overlap when the plurality of sheet members 47, 47, ... are not joined. The fixed-side mounting portion 50 and the movable-side mounting portion 51 overlap when the plurality of sheet members 47, 47, ... are joined or not joined.

[0118] As described above, the respective portions of the first heat transfer sheet 39 are engaged with the first fixed-side heat transfer plate 12 mounted on the substrate 9 and the first movable-side heat transfer plate 19 mounted on the circuit board 25, and thereby the fixed body 7 and the movable body 8 are connected through the first heat transfer sheet 39. Furthermore, the respective portions of the second heat transfer sheet 46 are engaged with the second fixed-side heat transfer plate 13 mounted on the substrate 9 and the second movable-side heat transfer plate 20 mounted on the circuit board 25, and thereby the fixed body 7 and the movable body 8 are also connected through the second heat transfer sheet 46.

[0119] One end of a first heat conducting sheet made of graphite or the like, not shown in the figure, is mounted from the back side on the mounting plate portion 12a of the first fixed-side heat transfer plate 12. One end of a second heat conducting sheet made of graphite or the like, not shown in the figure, is mounted from the back side on the mounting plate portion 13a of the second fixed-side heat transfer plate 13. The other end of the first heat conducting sheet and the other end of the second heat conducting sheet are mounted on, for example, the inner surface of the housing 3.

[0120] The integral first heat transfer sheet 39 and the integral second heat transfer sheet 46 are formed integrally, for example (see Figure 8 ).

[0121] In this case, each of the integral first heat transfer sheet 39 and the integral second heat transfer sheet 46 may be integrally formed by, for example, overlapping graphite sheets formed into a predetermined shape into a plate shape to form a base 53 and by bending a predetermined portion of the base 53 in a predetermined direction.

[0122] By integrally forming the integral first heat transfer sheet 39 and the integral second heat transfer sheet 46 , it is possible to promote improvement of workability in the manufacturing process of the image blur correction device 6 and reduction in the number of parts of the image blur correction device 6 .

[0123] <Operations in Imaging Device>

[0124] In the imaging device 1 configured as above, the imaging element 23 is in a driven state (particularly, the imaging element 23 and the circuit board 25 are in a state where power has been applied at the time of imaging, etc.), and thus heat is generated from the movable body 8. The heat generated in the movable body 8 is transferred from the first movable side heat transfer plate 19 and the second movable side heat transfer plate 20 to the first fixed side heat transfer plate 12 and the second fixed side heat transfer plate 13 through the first heat transfer sheet 39 and the second heat transfer sheet 46. The heat transferred to the first fixed side heat transfer plate 12 and the second fixed side heat transfer plate 13 is transferred from the first heat transfer sheet mounted on the mounting plate portion 12a of the first fixed side heat transfer plate 12 and the second heat transfer sheet mounted on the mounting plate portion 13a of the second fixed side heat transfer plate 13 to the housing 3 and radiated from the housing 3 to the outside.

[0125] Therefore, the temperature of the movable body 8 (particularly, the imaging element 23 and the circuit board 25) rises in a curve shape, thereby ensuring a good driving state of the imaging element 23, the circuit board 25, and the like.

[0126] During the above-mentioned imaging, etc., a blur correction operation is performed according to the movement of the movable body 8 in the direction orthogonal to the optical axis direction relative to the fixed body 7. In the blur correction operation, the deformation portions 45, 45 of the first heat transfer sheet 39 and the deformation portions 52, 52 of the second heat transfer sheet 46 are deformed according to the movement of the movable body 8 relative to the fixed body 7.

[0127] Here, since the thickness direction of the first heat transfer sheet 39 and the second heat transfer sheet 46 is orthogonal to the optical axis direction and no torsion occurs in the deformed deformation portions 45 and 52, the load generated in the first heat transfer sheet 39 and the second heat transfer sheet 46 is small, and the load (driving load) applied from the first heat transfer sheet 39 and the second heat transfer sheet 46 to the movable body 8 is small.

[0128] <Deformation of the heat transfer sheet>

[0129] Hereinafter, the deformation state of the first heat transfer sheet 39 and the second heat transfer sheet 46 will be described (refer to Figures 9 to 14 ). In addition, the deformation states of the first heat transfer sheet 39 and the second heat transfer sheet 46 are the same because the first heat transfer sheet 39 and the second heat transfer sheet 46 have only an inverted arrangement difference therebetween, and therefore only the deformation state of the first heat transfer sheet 39 will be described below.

[0130] In the first heat transfer sheet 39, the deformable portion 45 is overlapped in a state where the plurality of sheet-like members 40, 40, ... are not joined, the first portion 45a and the second portion 45b of the deformable portion 45 are bent at acute angles to the fixed-side mounting portion 43 and the movable-side mounting portion 44, respectively, and the connecting portion 45c is bent in a direction opposite to the bending direction of the first portion 45a relative to the fixed-side mounting portion 43 and the bending direction of the second portion 45b relative to the movable-side mounting portion 44 (see Fig. 9 ).

[0131] Therefore, the sheet-like components 40, 40, ... in the deformation portion 45 are prone to generate gaps therebetween in the thickness direction, and almost no gaps are generated between the sheet-like components 40, 40, ... at the edge 45d on one side and the edge 45e on the other side in the up and down directions, but the gaps between the sheet-like components 40, 40, ... are maximized in the connecting portion 45c, so the deformation portion 45 is in a flexible state, that is, a state that is easy to deform.

[0132] When the movable body 8 moves in the lateral direction relative to the fixed body 7 and the force F is applied to the first heat transfer sheet 39 in the lateral direction, the movable side mounting portion 44 is displaced in the lateral direction relative to the fixed side mounting portion 43, and the deformation portions 45 and 45 are deformed (refer to Fig.10 Here, although the sheet-like members 40, 40, ... have gaps therebetween in the deformation portion 45, and in particular, the connection portion 45c has a large gap, and the gaps between the sheet-like members 40, 40, ... are reduced according to the deformation of the deformation portion 45, the gaps between the sheet-like members 40, 40, ... are also maintained in the state where the deformation portion 45 has been deformed.

[0133] Therefore, the deformation portion 45 as a whole maintains a flexible state, the load generated in the deformation portion 45 is small, and the load (driving load) applied from the first heat transfer sheet 39 to the movable body 8 when the movable body 8 moves in the lateral direction relative to the fixed body 7 is small.

[0134] In addition, the first heat transfer sheet 39 is formed by overlapping a plurality of sheet members 40, 40, ... in an unjoined state and joining both ends of the sheet members 40, 40, ... in the longitudinal direction to form a ring shape penetrating front and back.

[0135] Therefore, a reaction force is generated from the inside to the outside of the ring in the first heat transfer sheet 39, and this reaction force is a reaction force for returning to the balanced length state before the two ends of the sheet-like members 40, 40, ... are joined in the longitudinal direction. Therefore, a reaction force P is generated in the deformation portion 45, and the edge 45d on one side and the edge 45e on the other side in the vertical direction are displaced in opposite directions (see Fig.11 ).

[0136] When the movable body 8 moves in the lateral direction relative to the fixed body 7 and the force F is applied to the first heat transfer sheet 39 in the lateral direction, the movable side mounting portion 44 is displaced in the lateral direction relative to the fixed side mounting portion 43, and the deformation portions 45 and 45 are deformed (refer to Fig.12Here, when it is assumed that the angles of the first portions 45a and 45a relative to the fixed-side mounting portion 43 are A1 and A2 and the angles of the second portions 45b and 45b relative to the movable-side mounting portion 44 are B1 and B2, when the deformation portion 45 has been deformed, the first portion 45a on one side and the second portion 45b on the other side are displaced in a state where the angles A1 and B2 are increased, and the first portion 45a on the other side and the second portion 45b on one side are displaced in a state where the angles A2 and B1 are reduced.

[0137] Here, the force of the reaction force P becomes a force assisting force in a direction in which the angles A1 and B2 increase, and becomes a force opposite to the assisting force in a direction in which the angles A2 and B1 decrease.

[0138] Thus, when the movable body 8 moves in the lateral direction relative to the fixed body 7, the reaction force P becomes a force that assists the force and a force opposite to the assisting force, but since the reaction force P does not only become an assisting force, the load generated in the first heat transfer sheet 39 is small.

[0139] Therefore, generation of the reaction P in the first heat transfer sheet 39 does not cause a large load to be generated in the deformation portion 45, and thus the load (driving load) applied from the first heat transfer sheet 39 to the movable body 8 when the movable body 8 moves in the lateral direction relative to the fixed body 7 is small.

[0140] In addition, as described above, all the conductive portions 36 of the first flexible printed wiring board 33, the second flexible printed wiring board 37, and the third flexible printed wiring board 38 are bent so that the portions are opposed to each other in the optical axis direction (front-rear direction) in the image blur correction device 6. Therefore, when the movable body 8 moves in the lateral direction relative to the fixed body 7, torsion occurs in all the conductive portions 36 of the first flexible printed wiring board 33, the second flexible printed wiring board 37, and the third flexible printed wiring board 38, and the generated torsion becomes a load for the movement of the movable body 8.

[0141] However, in the image blur correction device 6, since the fixed-side mounting portion 43 and the movable-side mounting portion 44 are positioned to be vertically opposed to each other and the first heat transfer sheet 39 is configured in a state where the deformation portions 45 and 45 are arranged laterally, as described above, the load generated in the first heat transfer sheet 39 in the lateral direction is small, and the load applied from the first heat transfer sheet 39 to the movable body 8 in the moving direction of the movable body 8 is small. Therefore, the load applied from the conductive portion 36 and the like to the movable body 8 when the movable body 8 moves relative to the fixed body 7 in the width direction (lateral direction) of the conductive portion 36 and the like is hardly amplified, and thus a smooth moving state of the movable body 8 relative to the fixed body 7 can be ensured.

[0142] Meanwhile, although the force generated when the first heat transfer sheet 39 is configured in a state where the deformation portions 45 and 45 are arranged laterally and the movable body 8 moves in the lateral direction relative to the fixed body 7 has been described, the first heat transfer sheet 39 may be configured in a state where the deformation portions 45 and 45 are arranged vertically, in which case the load (driving load) applied from the first heat transfer sheet 39 to the movable body 8 when the movable body 8 moves in the up-down direction relative to the fixed body 7 is reduced.

[0143] On the other hand, when the movable body 8 moves relative to the fixed body 7 in the up-down direction in the state where the first heat transfer sheet 39 having the laterally arranged deformation portions 45 and 45 is arranged, the deformation portions 45 and 45 are deformed to expand / contract (refer to Fig.13 and Fig.14 ).

[0144] In this case, when the deformation portion 45 is in the contracted state, as shown in FIG. Fig.13 As shown, a force Q1 that pushes back the movable body 8 is generated in the deformation portion 45, a load is applied to the movable body 8 in the direction opposite to the moving direction, and the load applied to the movable body 8 from the first heat transfer sheet 39 tends to increase when the movable body 8 moves in the lateral direction. However, since the gaps between the sheet-like members 40, 40, ... are increased in the deformation portion 45, the deformation portion 45 as a whole is maintained in a flexible state, a large load is hardly generated in the deformation portion 45, and the load (driving load) applied to the movable body 8 from the first heat transfer sheet 39 when the movable body 8 moves in the up-down direction relative to the fixed body 7 does not increase excessively.

[0145] On the contrary, when the deformation portion 45 is in the expanded state, as shown in FIG. Fig.14 As shown, a force Q2 that pulls the movable body 8 back is generated in the deformation portion 45, a load is applied to the movable body 8 in the direction opposite to the moving direction, and the load applied to the movable body 8 from the first heat transfer sheet 39 tends to increase when the movable body 8 moves in the lateral direction. However, both the angle A formed between the first portion 45a and the fixed-side mounting portion 43 and the angle B formed between the second portion 45b and the fixed-side mounting portion 43 are increased, and therefore the reaction force P becomes a force that assists the force when the movable body 8 moves relative to the fixed body 7 in the up-down direction.

[0146] Therefore, the reaction force P generated in the first heat transfer sheet 39 does not cause a load to be generated in the deformation portion 45, and the load (driving load) applied from the first heat transfer sheet 39 to the movable body 8 when the movable body 8 moves relative to the fixed body 7 in the up-down direction does not increase excessively.

[0147] Furthermore, as described above, the movable body 8 also moves relative to the fixed body 7 in a direction inclined with respect to the upward direction, the downward direction, and the lateral direction. In this case, a composite operation state of the above-mentioned moving operation in the lateral direction and the moving operation in the up-down direction of the movable body 8 is generated, but as described above, the load (driving load) applied to the movable body 8 from the first heat transfer sheet 39 is small in both the moving operation in the lateral direction and the moving operation in the up-down direction of the movable body 8. Therefore, when the movable body 8 moves in a direction inclined with respect to the upward direction, the downward direction, and the lateral direction, the load (driving load) applied to the movable body 8 from the first heat transfer sheet 39 is also small.

[0148] Meanwhile, since the second heat transfer sheet 46 differs from the first heat transfer sheet 39 only in the inverted configuration but has the same structure as the first heat transfer sheet 39, the load generated in the second heat transfer sheet 46 is the same as the load generated in the first heat transfer sheet 39, and the load generated when the movable body 8 moves relative to the fixed body 7 is smaller.

[0149] <Effects of the structure of the heat transfer sheet, etc.>

[0150] As described above, the first heat transfer sheet 39 and the second heat transfer sheet 46 are formed by overlapping a plurality of sheet-like members 40, 40, ..., 47, 47, ... in the thickness direction.

[0151] Therefore, when the deformation parts 45 and 52 have been deformed, the sheet members 40, 40, ..., 47, 47, ... can be separated in the thickness direction, so that the load of the first heat transfer sheet 39 and the second heat transfer sheet 46 relative to the movement of the movable body 8 can be reduced when the movable body 8 moves relative to the fixed body 7, and the reduction of power consumption can be promoted. In addition, since the plurality of sheet members 40, 40, ..., 47, 47, ... overlap in the thickness direction, the deformation parts 45 and 52 do not become too rigid even when the thickness thereof increases, and thus the flexible state of the deformation parts 45 and 52 can be maintained to suppress the generation of load and increase the amount of heat transfer.

[0152] Furthermore, in the deformation portions 45 and 52 , the first portions 45 a and 52 a are bent at an acute angle with respect to the fixed-side mounting portions 43 and 50 , and the second portions 45 b and 52 b are bent at an acute angle with respect to the movable-side mounting portions 44 and 51 .

[0153] Therefore, when the deformation portions 45 and 52 have been deformed, the sheet-like members 40, 40, ..., 47, 47, ... are easily separated in the thickness direction, and thereby the load of the movement of the first heat transfer sheet 39 and the second heat transfer sheet 46 relative to the movable body 8 can be further reduced when the movable body 8 moves relative to the fixed body 7, and can promote further reduction of power consumption.

[0154] In addition, the first heat transfer sheet 39 and the second heat transfer sheet 46 are formed in a ring shape, and the deformation parts 45 and 52 are provided as a pair, and both ends of one of the deformation parts 45 and 52 are respectively connected to one end of the fixed side mounting part 43 and 50 and one end of the movable side mounting part 44 and 51, and both ends of the other of the deformation parts 45 and 52 are respectively connected to the other end of the fixed side mounting part 43 and 50 and the other end of the movable side mounting part 44 and 51.

[0155] Therefore, since the pair of deformation portions 45 , 52 deform equally, a load biased to the first heat transfer sheet 39 and the second heat transfer sheet 46 is difficult to generate, and thus a smooth moving state of the movable body 8 relative to the fixed body 7 can be ensured.

[0156] In addition, the first fixed-side heat transfer plate 12 and the second fixed-side heat transfer plate 13 are arranged in the fixed body 7, the first movable-side heat transfer plate 19 and the second movable-side heat transfer plate 20 are arranged in the movable body 8, and a part of the first heat transfer sheet 39 and a part of the second heat transfer sheet 46 are respectively installed on the first fixed-side heat transfer plate 12 or the second fixed-side heat transfer plate 13 and the first movable-side heat transfer plate 19 or the second movable-side heat transfer plate 20.

[0157] Therefore, the heat generated in the movable body 8 is transferred to the fixed body 7 through the first fixed-side heat transfer plate 12 or the second fixed-side heat transfer plate 13, the first heat transfer fin 39 or the second heat transfer fin 46, and the first movable-side heat transfer plate 19 or the second movable-side heat transfer plate 20. Therefore, the first fixed-side heat transfer plate 12, the second fixed-side heat transfer plate 13, the first movable-side heat transfer plate 19, and the second movable-side heat transfer plate 20 can be formed in a shape corresponding to the shape of the first heat transfer fin 39 and the second heat transfer fin 46, and the heat generated in the movable body 8 can be effectively transferred to the fixed body 7 regardless of the shapes of the first heat transfer fin 39 and the second heat transfer fin 46.

[0158] Furthermore, although an example in which one first heat transfer sheet 39 and one second heat transfer sheet 46 are configured has been described above, the number of the first heat transfer sheet 39 and the second heat transfer sheet 46 configured in the image blur correction device 6 is arbitrary, and at least one of the first heat transfer sheet 39 and the second heat transfer sheet 46 may be configured. Furthermore, a plurality of first heat transfer sheets 39 and a plurality of second heat transfer sheets 46 may be configured.

[0159] In addition, the positions at which the first heat transfer sheet 39 and the second heat transfer sheet 46 are arranged are also arbitrary, and thus the first heat transfer sheet 39 and the second heat transfer sheet 46 may be arranged vertically apart, the first heat transfer sheet 39 and the second heat transfer sheet 46 may be arranged laterally apart, or the first heat transfer sheet 39 and the second heat transfer sheet 46 may be arranged in a direction inclined relative to the upward direction, the downward direction, and the lateral direction.

[0160] In addition, only one of the first heat transfer sheet 39 and the second heat transfer sheet 46 may be provided, only a plurality of first heat transfer sheets 39 may be provided, or only a plurality of second heat transfer sheets 46 may be provided. In this case, the position of each of the first heat transfer sheet 39 and the second heat transfer sheet 46 is also arbitrary.

[0161] Furthermore, although it has been described above that the first heat transfer sheet 39 is composed of the fixed-side mounting portion 43, the movable-side mounting portion 44 and the pair of deformation portions 45, 45 and the second heat transfer sheet 46 is composed of the fixed-side mounting portion 50, the movable-side mounting portion 51 and the pair of deformation portions 52, 52, each of the first heat transfer sheet and the second heat transfer sheet may be constructed to have one or at least three deformation portions 45 or 52.

[0162] <Example of heat transfer sheet configuration>

[0163] Hereinafter, an example of the configuration of the heat transfer sheet will be described (refer to Fig.15 and Fig.16 ). In addition, in order to simplify the following description, the first heat transfer sheet 39 and the second heat transfer sheet 46 will be described as a heat transfer sheet 70, the fixed side mounting parts 43 and 50 will be described as a fixed side mounting part 71, the movable side mounting parts 44 and 51 will be described as a movable side mounting part 72, and the deformation parts 45 and 52 will be described as a deformation part 73.

[0164] In the first configuration example, the fixed side mounting portion 71 and the movable side mounting portion 72 of at least one heat transfer sheet 70 are arranged vertically, and the deformation portions 73 and 73 thereof are arranged horizontally, and the fixed side mounting portion 71 and the movable side mounting portion 72 of at least another heat transfer sheet 70 are arranged horizontally, and the deformation portions 73 and 73 thereof are arranged vertically, and at least two heat transfer sheets 70 and 70 are arranged in an orthogonal orientation in a direction orthogonal to the optical axis direction (refer to Fig.15 ). Therefore, the fixed side mounting portion 71 and the movable side mounting portion 72 of one heat transfer sheet 70 are arranged parallel to a first direction orthogonal to the optical axis direction, and the fixed side mounting portion 71 and the movable side mounting portion 72 of the other heat transfer sheet 70 are arranged parallel to a second direction orthogonal to the optical axis direction and the first direction.

[0165] In this case, when the movable body 8 moves relative to the fixed body 7 in the lateral direction, the load applied to the movable body 8 from the heat transfer sheet 70 having the laterally arranged deformation portions 73 and 73 is small, and when the movable body 8 moves relative to the fixed body 7 in the up-down direction, the load applied to the movable body 8 from the heat transfer sheet 70 having the vertically arranged deformation portions 73 and 73 is small.

[0166] Therefore, when the movable body 8 moves in any one of the lateral direction and the up-down direction relative to the fixed body 7 , the load applied from the heat transfer sheet 70 to the movable body 8 does not increase excessively.

[0167] By configuring at least the heat transfer sheets 70 and 70 in orthogonal directions in this way, the load biased in a specific moving direction of the movable body 8 is reduced when the movable body 8 moves relative to the fixed body 7, and thus a smooth moving state of the movable body 8 relative to the fixed body 7 can be ensured.

[0168] In the second configuration example, two heat transfer sheets 70 and 70 are arranged on opposite sides across the center S of the imaging element 23 on the diagonal line T of the imaging element 23 (see Fig.16 ).

[0169] In this case, the load generated in the two heat transfer sheets 70 and 70 is dispersed on both sides of the center S of the imaging element 23 between the two heat transfer sheets 70 and 70 on the diagonal line T of the imaging element 23, and therefore, almost no load biased to the movable body 8 is generated and a smooth movement state of the movable body 8 relative to the fixed body 7 can be ensured.

[0170] In particular, in the image blur correction device 6, the driving unit is composed of the second magnets 11 and 11 and the second coil 31 to move the movable body 8 in the up-down direction relative to the fixed body 7, and the two driving units are provided and arranged in a laterally separated state. Since the two heat transfer sheets 70 and 70 are configured to be arranged on opposite sides across the center S of the imaging element 23 on the diagonal line T of the imaging element 23, the load applied from the heat transfer sheets 70 and 70 to the two driving units is distributed, and thus the reduction of power consumption can be promoted.

[0171] Furthermore, the number of heat transfer sheets 70 arranged in the image blur correction device 6 is arbitrary, and at least one heat transfer sheet 70 may be arranged. In addition, when a plurality of heat transfer sheets 70 are arranged, the arrangement position is also arbitrary, and thus a plurality of heat transfer sheets 70 may be arranged vertically separated, a plurality of heat transfer sheets 70 may be arranged horizontally separated, or a plurality of heat transfer sheets 70 may be arranged in a direction inclined with respect to the upward direction, the downward direction, and the horizontal direction.

[0172] <Modification of Heat Transfer Sheet>

[0173] Hereinafter, a modified example of the heat transfer sheet will be described (refer to Figures 17 to 23). In addition, in order to simplify the following description, the first heat transfer sheet 39 and the second heat transfer sheet 46 will be described as heat transfer sheets 70 (70A, 70B, ...), the fixed side mounting parts 43 and 50 will be described as fixed side mounting parts 71 (71A, 71B, ...), the movable side mounting parts 44, 51 will be described as movable side mounting parts 72 (72A, 72B, ...), and the deformation parts 45, 52 will be described as deformation parts 73 (73A, 73B, ...). In addition, the first fixed side heat transfer plate 12 and the second fixed side heat transfer plate 13 will be described as first heat transfer plates 80 (80A, 80B, ...), and the first movable side heat transfer plate 19 and the second movable side heat transfer plate 20 will be described as second heat transfer plates 90 (90A, 90B, ...).

[0174] A heat transfer sheet 70A according to a first modification to a heat transfer sheet 80G according to a seventh modification described below each have a thickness direction orthogonal to the optical axis direction (front-rear direction).

[0175] The heat transfer sheet 70A according to the first modification includes a fixed-side mounting portion 71A, a movable-side mounting portion 72A, and a deforming portion 73A, and is mounted on the first heat transfer plate 80A and the second heat transfer plate 90A (see Fig.17 ). The first heat transfer plate 80A includes a mounting plate portion 80x facing the front-rear direction and a mounting plate portion 80y facing the up-down direction, and the second heat transfer plate 90A includes a mounting plate portion 90x facing the front-rear direction and a mounting plate portion 90y facing the up-down direction. In the heat transfer sheet 70A, the fixed side mounting portion 71A and the movable side mounting portion 72A are mounted on the mounting plate portion 80y and the mounting plate portion 90y, respectively, and the deformation portion 73A is formed in a curved shape. In the heat transfer sheet 70A, the fixed side mounting portion 71A and the movable side mounting portion 72A are mounted on the first heat transfer plate 80A and the second heat transfer plate 90A in a state where the fixed side mounting portion 71A and the movable side mounting portion 72A face the up-down direction.

[0176] The heat transfer sheet 70B according to the second modification example has a fixed side mounting portion 71B, a movable side mounting portion 72B and a deforming portion 73B, and is mounted on the first heat transfer plate 80B and the second heat transfer plate 90B (see Fig.18). The first heat transfer plate 80B includes a mounting plate portion 80x facing the front-rear direction, a connecting portion 80z facing the up-down direction, and a mounting plate portion 80y facing the lateral direction, and the second heat transfer plate 90B includes a mounting plate portion 90x facing the front-rear direction and a mounting plate portion 90y facing the up-down direction. In the heat transfer sheet 70B, the fixed side mounting portion 71B and the movable side mounting portion 72B are mounted on the mounting plate portion 80y and the mounting plate portion 90y, respectively, and the deformation portion 73B is formed in a curved shape. In the heat transfer sheet 70B, the fixed side mounting portion 71B is mounted on the first heat transfer plate 80B in a state where the fixed side mounting portion 71B faces the lateral direction, and the movable side mounting portion 72B is mounted on the second heat transfer plate 90B in a state where the movable side mounting portion 72B faces the up-down direction.

[0177] Furthermore, in the heat transfer sheet 70B according to the second modified example, the fixed side mounting portion 71B can be mounted on the first heat transfer plate 80B in a state where the fixed side mounting portion 71B faces the up-down direction, and the movable side mounting portion 72B can be mounted on the second heat transfer plate 90B in a state where the movable side mounting portion 72B faces the lateral direction.

[0178] The heat transfer sheet 70C according to the third modified example includes a fixed side mounting portion 71C, a movable side mounting portion 72C, and a deformable portion 73C, and is mounted on the first heat transfer plate 80C and the second heat transfer plate 90C (see Fig.19 ). The first heat transfer plate 80C includes a mounting plate portion 80x facing the front-rear direction, a connecting portion 80z facing the up-down direction, and a mounting plate portion 80y facing the lateral direction, and the second heat transfer plate 90C includes a mounting plate portion 90x facing the front-rear direction, a connecting portion 90z facing the up-down direction, and a mounting plate portion 90y facing the lateral direction. In the heat transfer sheet 70C, the fixed side mounting portion 71C and the movable side mounting portion 72C are mounted on the mounting plate portion 80y and the mounting plate portion 90y, respectively, and the deformation portion 73C is formed in a curved shape. In the heat transfer sheet 70C, the fixed side mounting portion 71C and the movable side mounting portion 72C are mounted on the first heat transfer plate 80C and the second heat transfer plate 90C, respectively, in a state where the fixed side mounting portion 71C and the movable side mounting portion 72C face the lateral direction.

[0179] Furthermore, in the heat transfer sheet 70A according to the first modified example, the heat transfer sheet 70B according to the second modified example, and the heat transfer sheet 70C according to the third modified example, the fixed side mounting portions 71A, 71B, and 71C and the movable side mounting portions 72A, 72B, and 72C may be mounted on the first heat transfer plates 80A, 80B, and 80C and the second heat transfer plates 90A, 90B, and 90C in a state where one or both of the fixed side mounting portions 71A, 71B, and 71C and the movable side mounting portions 72A, 72B, and 72C are inclined relative to the up-down direction and the lateral direction.

[0180] The heat transfer sheet 70D according to the fourth modification includes a fixed side mounting portion 71D, a movable side mounting portion 72D, and a deforming portion 73D, and is mounted on the first heat transfer plate 80D and the second heat transfer plate 90D (see Fig. 20 ). In the fourth modification, for example, a pair of heat transfer sheets 70D and 70D are provided. The first heat transfer plate 80D includes a mounting plate portion 80x facing the front-rear direction, a connecting portion 80z facing the up-down direction, and mounting plate portions 80y and 80y inclined relative to the up-down direction and the lateral direction, and the second heat transfer plate 90D includes a mounting plate portion 90x facing the front-rear direction, a connecting portion 90z facing the up-down direction, and mounting plate portions 90y and 90y inclined relative to the up-down direction and the lateral direction. The inclination direction of the mounting plate portions 80y and 80y is the opposite direction to the inclination direction of the mounting plate portions 90y and 90y and is inclined, for example, 45 degrees relative to the up-down direction.

[0181] In the heat transfer sheet 70D, the fixed side mounting portion 71D and the movable side mounting portion 72D are mounted on the mounting plate portion 80y and the mounting plate portion 90y, respectively, and the deformable portion 73D is bent in the middle thereof and formed into a horizontally lying V-shape. In the heat transfer sheets 70D and 70D, the middle portions of the deformable portions 73D and 73D are bent in a direction approaching each other in the lateral direction. In the heat transfer sheet 70D, the fixed side mounting portion 71D and the movable side mounting portion 72D are mounted on the first heat transfer plate 80D and the second heat transfer plate 90D in a state where the fixed side mounting portion 71D and the movable side mounting portion 72D are tilted with respect to the up-down direction and the lateral direction, respectively. Therefore, the heat transfer sheet 70D is formed into a horizontally lying W-shape as a whole.

[0182] The heat transfer sheet 70E according to the fifth modification includes a fixed side mounting portion 71E, a movable side mounting portion 72E, and a deforming portion 73E, and is mounted on the first heat transfer plate 80E and the second heat transfer plate 90E (see Fig.21 ). In the fifth modification, for example, a pair of heat transfer plates 70E and 70E are provided. The first heat transfer plate 80E includes a mounting plate portion 80x facing in the front-rear direction, a connecting portion 80z facing in the up-down direction, and mounting plate portions 80y and 80y facing in the lateral direction, and the second heat transfer plate 90E includes a mounting plate portion 90x facing in the front-rear direction, a connecting portion 90z facing in the up-down direction, and mounting plate portions 90y and 90y facing in the lateral direction.

[0183] In the heat transfer sheet 70E, the fixed side mounting portion 71E and the movable side mounting portion 72E are mounted on the mounting plate portion 80y and the mounting plate portion 90y, respectively, and the deformed portion 73E is bent at its middle portion and formed into a horizontal V-shape. In the heat transfer sheets 70E and 70E, the middle portions of the deformed portions 73E and 73E are bent in a direction in which they approach each other in the lateral direction. In the heat transfer sheet 70E, the fixed side mounting portion 71E and the movable side mounting portion 72E are mounted on the first heat transfer plate 80E and the second heat transfer plate 90E, respectively, in a state in which the fixed side mounting portion 71C and the movable side mounting portion 72C face the lateral direction.

[0184] The heat transfer sheet 70F according to the sixth modification includes a fixed side mounting portion 71F, a movable side mounting portion 72F, and a deforming portion 73F, and is mounted on the first heat transfer plate 80F and the second heat transfer plate 90F (see Fig. 22 In the sixth modification, for example, a pair of heat transfer sheets 70F and 70F are provided. The first heat transfer plate 80F includes a mounting plate portion 80x facing the front-rear direction and a mounting plate portion 80y facing the up-down direction, and the second heat transfer plate 90F includes a mounting plate portion 90x facing the front-rear direction and a mounting plate portion 90y facing the up-down direction.

[0185] In the heat transfer sheets 70F and 70F, the fixed side mounting parts 71F and 71F overlap with the movable side mounting parts 72F and 72F in the thickness direction, the fixed side mounting parts 71F and 71F and the movable side mounting parts 72F and 72F are mounted on the mounting plate part 80y and the mounting plate part 90y in an overlapping state, and the deformation parts 73F and 73F are bent at the middle part thereof and formed into a horizontal V-shape. In the heat transfer sheets 70F and 70F, the middle parts of the deformation parts 73F and 73F are bent in a direction separated from each other in the lateral direction. In the heat transfer sheet 70F, the fixed side mounting part 71F and the movable side mounting part 72F are mounted on the first heat transfer plate 80F and the second heat transfer plate 90F in a state where the fixed side mounting part 71A and the movable side mounting part 72F face the up-down direction. The deformation parts 73F and 73F of the heat transfer sheets 70F and 70F are formed into a parallelogram as a whole.

[0186] The heat transfer sheet 70G according to the seventh modification includes a fixed side mounting portion 71G, a movable side mounting portion 72G, and a deforming portion 73G, and is mounted on the first heat transfer plate 80G and the second heat transfer plate 90G (see Fig.23 ). In the seventh modification, for example, two sets of heat transfer plates 70G and 70G pairs are provided. The first heat transfer plate 80G includes a mounting plate portion 80x facing in the front-rear direction, a connecting portion 80z facing in the up-down direction, and mounting plate portions 80y and 80y facing in the lateral direction, and the second heat transfer plate 90G includes a mounting plate portion 90x facing in the front-rear direction, a connecting portion 90z facing in the up-down direction, and mounting plate portions 90y and 90y facing in the lateral direction.

[0187] In the heat transfer sheets 70G and 70G, the fixed side mounting parts 71G and 71G overlap with the movable side mounting parts 72G and 72G in the thickness direction, the fixed side mounting parts 71G and 71G and the movable side mounting parts 72G and 72G are mounted on the mounting plate part 80y and the mounting plate part 90y in an overlapping state, and the deformation parts 73G and 73G are bent at the middle part thereof and formed into a horizontal V-shape. In a set of heat transfer sheets 70G and 70G, the middle parts of the deformation parts 73G and 73G are bent in a direction in which they are separated from each other in the lateral direction. In the heat transfer sheet 70G, the fixed side mounting part 71G and the movable side mounting part 72G are respectively mounted on the first heat transfer plate 80G and the second heat transfer plate 90G in a state in which the fixed side mounting part 71C and the movable side mounting part 72C face the lateral direction. The deformation parts 73G and 73G of the heat transfer sheets 70G and 70G are formed into a rhombus shape as a whole.

[0188] <Conclusion>

[0189] As described above, the imaging device 1 and the image blur correction device 6 include a flexible heat transfer sheet (including a first heat transfer sheet 39, a second heat transfer sheet 46 and a heat transfer sheet 70, which also applies to the following), the heat transfer sheet having a portion mounted on the fixed body 7 and the movable body 8 and transferring heat generated in the movable body 8 to the fixed body 7, and the thickness direction of the heat transfer sheet is orthogonal to the optical axis direction.

[0190] Therefore, when the movable body 8 has moved relative to the fixed body 7 in a direction orthogonal to the optical axis direction, no twisting occurs in the heat transfer sheet, and thus after ensuring that the heat transfer state from the movable body 8 to the fixed body 7 is good, the load applied to the movable body 8 when the movable body 8 moves relative to the fixed body 7 can be suppressed, thereby promoting a reduction in power consumption.

[0191] In addition, the fixed-side mounting portions 43, 50 and 71 mounted on the fixed body 7, the movable-side mounting portions 44, 51 and 72 mounted on the movable body 8, and the deformation portions 45, 52, 73 located between the fixed-side mounting portions 43, 50, 71 and the movable-side mounting portions 44, 51, 72 are provided on the heat transfer sheet, and the deformation portions 45, 52, 73 are formed into a curved shape.

[0192] Therefore, since the deforming portions 45, 52, 73 are easily deformed along with the movement of the movable body 8 relative to the fixed body 7, the load of the heat transfer sheet relative to the movement of the movable body 8 is further reduced, and thus further reduction in power consumption is promoted.

[0193] In addition, by using a graphite sheet as a heat transfer sheet, the heat transfer efficiency from the movable body 8 to the fixed body 7 can be improved, the load applied from the heat transfer sheet to the movable body 8 can be reduced, and the strength of the heat transfer sheet can be improved. This is because graphite is a material with high heat resistance, light weight, and high tensile strength.

[0194] <Embodiment of Imaging Apparatus>

[0195] Fig.24 is a block diagram of a still camera according to an embodiment of the imaging device of the present technology.

[0196] An imaging device (still camera) 100 (corresponding to the imaging device 1) includes a lens unit 101 having an imaging function, a camera signal processing unit 102 that performs signal processing such as analog-to-digital conversion of a captured image signal, and an image processing unit 103 that performs recording / reproducing processing of an image signal.

[0197] In addition, the imaging device 1 includes an image display unit 104 such as a liquid crystal panel that displays a captured image, a reader / writer (R / W) 105 that performs writing and reading of image signals to and from the memory 1000, a central processing unit (CPU) 106 that controls the entire imaging device 1, an input unit 107 (corresponding to the operating unit 4) composed of various switches, etc. through which a user performs necessary operations, and a lens drive control unit 108 that controls the drive of the lens configured in the lens unit 101.

[0198] The lens unit 101 is composed of an optical system including a lens group 109 (corresponding to the lens 64 ), an imaging element 110 (corresponding to the imaging element 23 ), and the imaging element 110 is, for example, a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS).

[0199] The camera signal processing unit 102 performs various types of signal processing, such as conversion of an output signal from the imaging element 110 into an analog signal, noise removal, image quality correction, and conversion into brightness and color difference signals.

[0200] The image processing unit 103 performs compression encoding processing and decompression encoding processing on an image signal based on a predetermined image data format, processing for converting data specifications such as resolution, and the like.

[0201] The image display unit 104 has a function of displaying various types of data such as an operation state applied to the input unit 107 by a user and a captured image.

[0202] The R / W 105 writes the image data encoded by the image processing unit 103 into the memory 1000 and reads the image data recorded in the memory 1000 .

[0203] The CPU 106 functions as a control processing unit that controls each circuit block provided in the imaging apparatus 1 and controls each circuit block based on an instruction input signal or the like from the input unit 107 .

[0204] The input unit 107 is composed of a shutter release button for performing a shutter operation, a selection switch for selecting an operation mode, and the like, and outputs an instruction input signal to the CPU 106 according to a user's operation.

[0205] The lens driving control unit 108 controls a motor (not shown) and the like, and drives each lens of the lens group 109 based on a control signal from the CPU 106 .

[0206] The memory 1000 is, for example, a semiconductor memory (memory card) detachably inserted into a slot connected to the R / W 105 or an internal memory provided in the imaging device 1 .

[0207] Hereinafter, the operation in the imaging apparatus 1 will be described.

[0208] In the imaging standby state, the image signal captured in the lens unit 101 is output to the image display unit 104 through the camera signal processing unit 102, and is displayed as a camera still image under the control of the CPU 106. 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 predetermined lens of the lens group 109 moves based on the control of the lens drive control unit 108.

[0209] When a shutter (not shown) in the lens unit 101 operates according to a command input signal from the input unit 107, a captured image signal is output from the camera signal processing unit 102 to the image processing unit 103, and is compression-encoded to be converted into digital data in a predetermined data format. The converted data is output to the R / W 105 and written to the memory 1000.

[0210] Focusing or zooming is performed by the lens driving control unit 108 moving a predetermined lens of the lens group 109 according to a control signal from the CPU 106 .

[0211] When the image data recorded in the memory 1000 is reproduced, the R / W 105 reads predetermined image data from the memory 1000 according to the operation performed on the input unit 107, the image processing unit 103 decompresses and encodes the read image data, and then outputs the reproduced image signal to the image display unit 104 and displays it as a reproduced image.

[0212] At the same time, in the present technology, "imaging" refers to only a part or all of a series of processes including from photoelectric conversion processing of converting captured light into electric signals by the imaging element 110 to processing such as converting the output signal from the imaging element 110 into a digital signal, noise removal, image quality correction and conversion into brightness and color difference signals by the camera signal processing unit 102, image signal compression encoding / decompression encoding processing based on a predetermined image data format by the image processing unit 103 and conversion of data specifications such as resolution, and writing the image signal to the memory 1000 by the R / W 105.

[0213] That is, “imaging” may refer to only the photoelectric conversion processing of converting the captured light into an electric signal by the imaging element 110, to the photoelectric conversion processing of converting the captured light into an electric signal by the imaging element 110, to the processing such as converting the output signal from the imaging element 110 into a digital signal, removing noise, correcting the image quality, and converting into brightness and color difference signals by the camera signal processing unit 102, to the photoelectric conversion processing of converting the captured light into an electric signal by the imaging element 110, removing noise, correcting the image quality, and converting into brightness and color difference signals by the camera signal processing unit 102. 3, refers to a process of compression encoding / decompression encoding processing of image signals based on a predetermined image data format and conversion of data specifications such as resolution by the imaging element 110, a process of photoelectric conversion processing of converting captured light into an electric signal by the imaging element 110, such as conversion of an output signal from the imaging element 110 into a digital signal, noise removal, image quality correction, and conversion into brightness and color difference signals by the camera signal processing unit 102, and a process of compression encoding / decompression encoding processing of image signals based on a predetermined image data format and conversion of data specifications such as resolution by the image processing unit 103, or refers to a process of writing an image signal into the memory 1000 by the R / W 105. In the above-mentioned processes, the order of the processes may be changed appropriately.

[0214] In addition, in the present technology, the imaging device 100 may be configured to include only a part or all of the imaging element 110 , the camera signal processing unit 102 , the image processing unit 103 , and the R / W 105 that perform the aforementioned processing.

[0215] <This technology>

[0216] The present technology can be configured as follows.

[0217] (1) An image blur correction device comprising:

[0218] A fixed body, wherein the fixed body is fixed in the housing;

[0219] a movable body including an imaging element and moving relative to the fixed body in a direction orthogonal to the optical axis direction; and

[0220] A bendable heat transfer sheet has portions mounted on the fixed body and the movable body and transfers heat generated in the movable body to the fixed body, wherein a thickness direction of the heat transfer sheet is orthogonal to the optical axis direction.

[0221] (2) An image blur correction device according to (1), wherein the heat transfer sheet is provided with a fixed side mounting portion mounted on the fixed body, a movable side mounting portion mounted on the movable body, and a deformation portion located between the fixed side mounting portion and the movable side mounting portion, wherein the deformation portion is formed into a curved shape.

[0222] (3) The image blur correction device according to (2), wherein the heat transfer sheet is formed by stacking a plurality of sheet-like members in the thickness direction.

[0223] (4) The image blur correction device according to (3), wherein

[0224] The fixed-side mounting portion and the movable-side mounting portion are positioned opposite to each other, and

[0225] The two ends of the deformation part are respectively connected to one end of the fixed side mounting part and one end of the movable side mounting part, and include a first part connected to the fixed side mounting part and a second part connected to the movable side mounting part, wherein

[0226] The first portion is bent at an acute angle relative to the fixed side mounting portion, and

[0227] The second portion is bent at an acute angle with respect to the movable-side mounting portion.

[0228] (5) The image blur correction device according to (4), wherein

[0229] The heat transfer sheet is formed in a ring shape.

[0230] The deformation parts are arranged in pairs,

[0231] Both ends of one of the deformation parts are connected to one end of the fixed side mounting part and one end of the movable side mounting part, respectively, and

[0232] Both ends of the other one of the deformation portions are connected to the other end of the fixed-side mounting portion and the other end of the movable-side mounting portion, respectively.

[0233] (6) The image blur correction device according to (4) or (5), wherein

[0234] There are at least two heat transfer sheets, and

[0235] At least one of the heat transfer sheets and at least another of the heat transfer sheets are arranged in an orthogonal orientation in a direction orthogonal to the optical axis direction.

[0236] (7) The image blur correction device according to any one of (4) to (6), wherein

[0237] A flexible printed wiring board is connected to the movable body,

[0238] The flexible printed wiring board is bent in the optical axis direction so that parts of the flexible printed wiring board face each other, and

[0239] The fixed-side mounting portion and the movable-side mounting portion are positioned to face each other in a direction orthogonal to both the optical axis direction and the width direction of the flexible printed wiring board.

[0240] (8) The image blur correction device according to any one of (1) to (7), wherein

[0241] At least two heat transfer sheets are provided on the back side of the imaging element, and

[0242] The two heat transfer sheets are arranged on opposite sides of the imaging element on a diagonal line across the center of the imaging element.

[0243] (9) The image blur correction device according to any one of (1) to (8), wherein

[0244] The fixed body is provided with a fixed side heat transfer plate,

[0245] The movable body is provided with a movable side heat transfer plate, and

[0246] Parts of the heat transfer sheet are mounted on the fixed-side heat transfer plate and the movable-side heat transfer plate.

[0247] (10) The image blur correction device according to any one of (1) to (9), wherein a graphite sheet is used as the heat transfer sheet.

[0248] (11) An imaging device comprising

[0249] An image blur correction device, which corrects image blur in a manner that a movable body including an imaging element moves relative to a fixed body fixed in a housing in a direction orthogonal to an optical axis direction, wherein the image blur correction device includes a flexible heat transfer sheet having portions mounted on the fixed body and the movable body and transferring heat generated in the movable body to the fixed body, wherein a thickness direction of the heat transfer sheet is orthogonal to the optical axis direction.

[0250] Reference numerals list

[0251] 1 Imaging equipment

[0252] 6 Image blur correction device

[0253] 7 Fixed body

[0254] 8 Movable body

[0255] 12 First fixed side heat transfer plate

[0256] 13 Second fixed side heat transfer plate

[0257] 19 First movable side heat transfer plate

[0258] 20 Second movable side heat transfer plate

[0259] 23 Imaging element

[0260] 33. First flexible printed wiring board

[0261] 37 Second flexible printed wiring board

[0262] 38 Third flexible printed wiring board

[0263] 39 First Heat Transfer Plate

[0264] 40 Sheet Components

[0265] 43 Fixed side mounting part

[0266] 44 Movable side mounting part

[0267] 45 Deformation

[0268] 45a Part 1

[0269] 45b Part 2

[0270] 46 Second heat transfer sheet

[0271] 47 Sheet-like components

[0272] 50 Fixed side mounting part

[0273] 51 Movable side mounting part

[0274] 52 Deformation

[0275] 52a Part 1

[0276] 52b Part 2

[0277] 70 Heat transfer sheet

[0278] 71 Fixed side mounting part

[0279] 72 Movable side mounting portion

[0280] 73 Deformation

[0281] 80 First heat transfer plate

[0282] 90 Second heat transfer plate

[0283] 70A to 70G Heat Transfer Sheet

[0284] 71A to 71G Fixed side mounting section

[0285] 72A to 72G Movable side mounting part

[0286] 73A to 73G Deformation

[0287] 80A to 80G First heat transfer plate

[0288] 90A to 90G Second heat transfer plate

[0289] 100 Imaging equipment

[0290] 110 Imaging Components

Claims

1. An image blur correction device, comprising: A fixed body, wherein the fixed body is fixed in the housing; a movable body including an imaging element and moving relative to the fixed body in a direction orthogonal to the optical axis direction; and a bendable heat transfer sheet having parts mounted on the fixed body and the movable body and transferring heat generated in the movable body to the fixed body, wherein the thickness direction of the heat transfer sheet is orthogonal to the optical axis direction, The heat transfer sheet includes a fixed side mounting portion mounted on the fixed body, a movable side mounting portion mounted on the movable body, and a deformation portion located between the fixed side mounting portion and the movable side mounting portion, wherein the deformation portion is formed in a curved shape. The heat transfer sheet is formed by stacking a plurality of sheet-like members in the thickness direction. The fixed-side mounting portion and the movable-side mounting portion are positioned opposite to each other, and The two ends of the deformation part are respectively connected to one end of the fixed side mounting part and one end of the movable side mounting part, and the deformation part includes a first part connected to the fixed side mounting part and a second part connected to the movable side mounting part, wherein The first portion is bent at an acute angle relative to the fixed side mounting portion, and The second portion is bent at an acute angle with respect to the movable-side mounting portion.

2. The image blur correction device according to claim 1, wherein The heat transfer sheet is formed in a ring shape. The deformation parts are arranged in pairs, Both ends of one of the deformation parts are connected to one end of the fixed side mounting part and one end of the movable side mounting part, respectively, and Both ends of the other one of the deformation portions are connected to the other end of the fixed-side mounting portion and the other end of the movable-side mounting portion, respectively.

3. The image blur correction device according to claim 1, wherein There are at least two heat transfer sheets, and At least one of the heat transfer sheets and at least another of the heat transfer sheets are arranged in an orthogonal orientation in a direction orthogonal to the optical axis direction.

4. The image blur correction device according to claim 1, wherein A flexible printed wiring board is connected to the movable body, The flexible printed wiring board is bent in the optical axis direction so that parts of the flexible printed wiring board face each other, and The fixed-side mounting portion and the movable-side mounting portion are positioned to face each other in a direction orthogonal to both the optical axis direction and the width direction of the flexible printed wiring board.

5. The image blur correction device according to claim 1, wherein At least two heat transfer sheets are provided on the back side of the imaging element, and The two heat transfer sheets are arranged on opposite sides of the imaging element on a diagonal line across the center of the imaging element.

6. The image blur correction device according to claim 1, wherein The fixed body is provided with a fixed side heat transfer plate, The movable body is provided with a movable side heat transfer plate, and Parts of the heat transfer sheet are mounted on the fixed-side heat transfer plate and the movable-side heat transfer plate.

7. The image blur correction device according to claim 1, wherein a graphite sheet is used as the heat transfer sheet.

8. An imaging device comprising An image blur correction device that corrects image blur in a manner that a movable body including an imaging element moves relative to a fixed body fixed in a housing in a direction orthogonal to an optical axis direction, wherein the image blur correction device includes a bendable heat transfer sheet having portions mounted on the fixed body and the movable body and transferring heat generated in the movable body to the fixed body, wherein a thickness direction of the heat transfer sheet is orthogonal to the optical axis direction, in, The heat transfer sheet is provided with a fixed side mounting portion mounted on the fixed body, a movable side mounting portion mounted on the movable body, and a deformation portion located between the fixed side mounting portion and the movable side mounting portion, wherein the deformation portion is formed in a curved shape. The heat transfer sheet is formed by stacking a plurality of sheet-like members in the thickness direction. The fixed-side mounting portion and the movable-side mounting portion are positioned opposite to each other, and The two ends of the deformation part are respectively connected to one end of the fixed side mounting part and one end of the movable side mounting part, and the deformation part includes a first part connected to the fixed side mounting part and a second part connected to the movable side mounting part, wherein The first portion is bent at an acute angle relative to the fixed side mounting portion, and The second portion is bent at an acute angle with respect to the movable-side mounting portion.

Images