Optical component guiding device, camera device and electronic device

Abstract

The guiding device (3) of the present invention comprises a fixed body (4), a movable body (5), and a sliding body (6) arranged therebetween. In addition, a first guiding portion (47) is provided on the side of the fixed body (4) connected to the sliding body (6) to guide the movable body (5) along a predetermined direction, i.e., the optical axis direction, and a second guiding portion (57) is provided on the side of the movable body (5) connected to the sliding body (6) to guide the movable body (5) along a cross direction intersecting the optical axis direction. The sliding body (6) has a first sliding portion (64) arranged in a shape following the first guiding portion (47) and a second sliding portion (65) arranged in a shape following the second guiding portion (57). Thus, the component holding the lens does not slide in the X direction and the Y direction with an increase in the component in the Z direction.

Description

Technical Field

[0001] The present invention relates to a guide device for optical components used in electronic devices such as smartphones, a camera device, and the electronic device. Background Art

[0002] In recent years, there are devices with optical hand shake correction functions in camera devices installed in electronic devices such as smart phones. As a document disclosing the related technology of such camera devices, there is Patent Document 1. In the camera module of Patent Document 1, the lens module holding the lens is held on the first frame via the first moving part, and the first frame is held on the second frame via the second moving part. The lens module moves along the X direction or Y direction orthogonal to the optical axis direction, that is, the Z direction (Patent Document 1). Figure 7 a).

[0003] Patent document 1: Korean Patent Publication No. 10-2016-0021158. Summary of the invention

[0004] However, in the case of the technology of Patent Document 1, since the linear motion mechanism in the X direction and the linear motion mechanism in the Y direction of the lens module are stacked in the Z direction, there is a problem that the component in the Z direction becomes large.

[0005] The present invention has been conceived in view of such a problem, and an object of the present invention is to provide an optical component guiding device, a camera device, and an electronic device capable of sliding a member holding a lens in the X direction and the Y direction without increasing the component in the Z direction.

[0006] In order to solve the above-mentioned problems, a preferred embodiment of the guiding device of an optical component of the present invention is characterized in that it comprises: a fixed body; a movable body movable with respect to the fixed body; and a sliding body arranged between the fixed body and the movable body, wherein a first guide portion is provided on the surface of the fixed body on the side of the fixed body in contact with the sliding body, the first guide portion is a groove extending along a predetermined direction for guiding the movable body, and a second guide portion is provided on the back side of the movable body on the side in contact with the sliding body, the second guide portion is a groove extending along a cross direction intersecting the predetermined direction for guiding the movable body, the sliding body comprises a first sliding portion arranged in a shape along the groove of the first guide portion, and a second sliding portion arranged in a shape along the groove of the second guide portion, The first sliding part is a column whose height is shorter than the length of the groove of the first guide part, and has a rectangular surface provided on the second sliding part side of the column along the groove of the first guide part. The second sliding part is a column whose height is shorter than the length of the groove of the second guide part, and has a rectangular surface provided on the first sliding part side of the column along the groove of the second guide part. The first sliding part and the second sliding part are joined or originally formed as a whole in a manner of crossing each other at the central parts of the rectangular surfaces. The fixed body and the movable body make the surface of the fixed body and the back side of the movable body face each other. The first sliding part of the sliding body is accommodated in the first guide part of the fixed body, and the second sliding part of the sliding body is accommodated in the second guide part of the movable body.

[0007] In this guide device, the first sliding portion may be in non-contact with the movable body, and the second sliding portion may be in non-contact with the fixed body.

[0008] In addition, the sliding body may be arranged at a position where the first guide portion and the second guide portion intersect.

[0009] In addition, the first guide portion and the second guide portion may be provided in at least two rows respectively.

[0010] In addition, the first guide portion may be a groove extending along the predetermined direction, and the second guide portion may be a groove extending along the intersecting direction.

[0011] In addition, the cross section of the groove of the first guide portion or the second guide portion may be arc-shaped, rectangular-shaped, or V-shaped.

[0012] In addition, the cross section of the column of the first sliding part or the second sliding part may be arc-shaped, rectangular-shaped, or V-shaped.

[0013] In addition, the sliding body may be formed in a cross shape.

[0014] Furthermore, the fixed body and the movable body may be opposed to each other with the sliding body interposed therebetween.

[0015] Alternatively, one of the fixed body and the movable body may include a magnet, and the other of the fixed body and the movable body may include a magnetic body or another magnet that attracts the magnet.

[0016] In addition, another preferred embodiment of the camera device of the present invention comprises: a guiding device for the above-mentioned optical component; a lens driving device for moving a lens body that receives light from a photographed object along the optical axis direction of the lens body; and an image sensor that receives light from the lens body, wherein the lens driving device is mounted on the movable body and the image sensor is mounted on the fixed body.

[0017] In addition, the camera device may also include: a guiding device for the above-mentioned optical components; a lens driving device for moving a lens body that receives light from a photographed object along the optical axis direction of the lens body; and an image sensor that receives light from the lens body, the lens driving device being mounted on the fixed body, and the image sensor being mounted on the movable body.

[0018] Furthermore, an electronic device according to another preferred embodiment of the present invention includes the camera device described above.

[0019] In the guide device of the present invention, a first guide portion for guiding the movable body along a predetermined direction is provided on one side of the fixed body connected to the sliding body, a second guide portion for guiding the movable body along a cross direction intersecting the predetermined direction is provided on one side of the movable body connected to the sliding body, and the sliding body has a first sliding portion arranged in a shape following the first guide portion, and a second sliding portion arranged in a shape following the second guide portion. In this structure, a straight-moving mechanism in a predetermined (X) direction and a straight-moving mechanism in a cross direction (Y) are not stacked in a Z direction orthogonal to the predetermined direction and the cross direction. Therefore, the member holding the lens can slide in the X direction and the Y direction without an increase in the component in the Z direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of a smart phone 9 equipped with a camera device 1 including a first embodiment of the present invention, namely, a guide device 3 for optical components, a front view of the camera device 1, and a diagram showing the stacked structure of a lens holder 21, a guide device 3 for optical components, and an image sensor 7.

[0021] Figure 2 yes Figure 1 A three-dimensional view of the guiding device 3.

[0022] Figure 3 It is decomposition Figure 1A three-dimensional view of the fixed body 4, the movable body 5, the driving coil 46, the driving magnet 55, and the sliding body 6 of the guiding device 3.

[0023] Figure 4 Change your viewing angle Figure 3 .

[0024] Figure 5 Viewed from the direction of arrow A and arrow B Figure 2 FIG. 3 is a diagram of a portion of a guiding device 3 .

[0025] Figure 6 It is a perspective view of a guide device 3A for an optical component according to a second embodiment of the present invention.

[0026] Figure 7 It is decomposition Figure 6 A three-dimensional view of the fixed body 4A, the movable body 5A, the driving coil 46, the driving magnet 55, and the sliding body 6A of the guiding device 3A. DETAILED DESCRIPTION

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

[0028] <First embodiment>

[0029] Figure 1 (A) is a rear view of a smartphone 9 equipped with a camera device 1 including an optical member guide device 3 according to the first embodiment of the present invention. The camera device 1 faces a lens 99 toward a photographic subject and reaches an opening on the rear side of a housing 90 of the smartphone 9.

[0030] like Figure 1 (B) and Figure 1 As shown in (C), the camera device 1 includes: a lens body 99 that receives light from a photographic object; a lens driving device 2 that moves the lens body 99 along its optical axis direction; a guide device 3 of an optical component that supports the lens driving device 2 in a manner that allows it to move in a direction orthogonal to the optical axis direction; a driving mechanism that generates a driving force that moves the lens driving device 2 in a direction orthogonal to the optical axis direction; and an image sensor 7 that receives light from the lens body 99. In this first embodiment, the driving mechanism and the guide device 3 are formed as a whole. Here, hereinafter, the optical axis direction of the lens body 99 is appropriately referred to as the Z direction. In addition, a direction orthogonal to the Z direction is appropriately referred to as the X direction, and a direction orthogonal to both the Z direction and the X direction is appropriately referred to as the Y direction.

[0031] The lens driving device 2 is mounted on the movable body 5 of the guide device 3. The lens driving device 2 is provided with a lens holder 21 for supporting the lens body 99. The lens driving device 2 is an auto focusing actuator. In the lens driving device 2, for example, a coil is provided on the lens holder 21, and a magnet is provided on the main body of the lens driving device 2 to face the coil, so that when a predetermined current is supplied to the coil, the lens driving device 2 moves the lens body 99 along the optical axis direction (Z direction) of the lens body 99. The image sensor 7 is mounted on the fixed body 4 of the guide device 3 via the substrate 10. The image sensor 7 converts light from the lens body 99 through the through holes 41 and 51 of the guide device 3 and reaches the light receiving surface of the image sensor 7 into an image signal and outputs it.

[0032] like Figures 2 to 4 As shown, the guiding device 3 includes: a fixed body 4; a movable body 5 movable relative to the fixed body 4; four yokes 45 and four driving coils 46 arranged on the fixed body 4; four driving magnets 55 arranged on the movable body 5; and four sliding bodies 6 arranged between the fixed body 4 and the movable body 5.

[0033] The fixed body 4 is a relatively thin rectangular plate-shaped member. A through hole 41 is formed in the center of the fixed body 4. The periphery of the through hole 41 is in a perfect circular shape. On the surface 48 side of the fixed body 4, there are recessed portions 42 that are recessed toward the back surface 49 through two stages in the portions opposite to each other in the X direction with the through hole 41 sandwiched therebetween. The recessed portion 42 of the fixed body 4 accommodates a yoke 45 and a drive coil 46.

[0034] The yoke 45 is a magnetic body that attracts the magnet. The yoke 45 is fixed to the bottom surface 44, which is the bottommost surface of the recess 42. The yoke 45 has the same size as the bottom surface 44 of the recess 42. When the yoke 45 is fixed to the bottom surface 44 of the recess 42, the yoke 45 and the middle surface 43 of the middle section of the recess 42 are roughly coplanar.

[0035] The drive coil 46 is fixed to the middle surface 43 of the yoke 45. The drive coil 46 is wound with the Z direction as the winding axis, and includes two straight portions extending in the X direction or the Y direction and two semicircular portions connecting the straight portions. When the drive coil 46 is fixed to the middle surface 43 of the recess 42, the drive coil 46 and the surface 48 of the fixed body 4 become roughly coplanar or the height of the drive coil 46 is lower. The yoke 45 and the drive coil 46 constitute a part of the drive mechanism that generates a driving force that moves the movable body 5 relative to the fixed body 4.

[0036] There are four first guide portions 47 at the four corners of the rectangular surface 48 of the fixed body 4. The first guide portion 47 is a groove that is recessed in a V shape from the surface 48 side of the fixed body 4 to the back side 49 side. Figure 5As shown in (A), the cross-sectional shape of the groove of the first guide portion 47 viewed from the X direction is V-shaped. Figure 3 As shown, the first guide portion 47 extends from the end surfaces of the fixed body 4 that are opposed in the X direction, along the X direction, which is a predetermined direction, to the recessed portion 42 on the inner side in the X direction.

[0037] The movable body 5 is a square member having substantially the same thickness as the fixed body 4. A through hole 51 is formed in the center of the fixed body 4. The periphery of the through hole 51 is substantially square. The dimension between the opposing wall surfaces in the through hole 51 of the movable body 5 is substantially the same as the diameter of the through hole 41 of the fixed body 4.

[0038] The portion of the movable body 5 that is opposite to each other in the X direction and the portion that is opposite to each other in the Y direction with the through hole 51 sandwiched therebetween is recessed toward one side of the through hole 51 as a recess 52. A driving magnet 55 is embedded in the recess 52. The driving magnet 55 is in the shape of a rectangular parallelepiped whose thickness is slightly thinner than the recessed width of the recess 52. When the driving magnet 55 is embedded in the recess 52, the magnetized surface of the driving magnet 55 and the back surface 59 of the movable body 5 are roughly coplanar. The driving magnet 55 constitutes a part of a driving mechanism that generates a driving force that moves the movable body 5 relative to the fixed body 4.

[0039] There are four second guide portions 57 at the four corners of the rectangular back surface 59 of the movable body 5. The second guide portion 57 is a groove that is recessed in a V shape from the back surface 59 side of the fixed body 4 to the surface 58 side. Figure 5 As shown in (B), the cross-sectional shape of the groove of the second guide portion 57 viewed from the Y direction is V-shaped. Figure 4 As shown, the second guide portion 57 extends from the end surface of the movable body 5 that is opposed in the Y direction, along the Y direction that is an intersecting direction intersecting the predetermined direction, to the recessed portion 52 on the inner side in the Y direction.

[0040] The sliding body 6 is a member formed by combining a first sliding portion 64 and a second sliding portion 65 of independent members into a cross shape as a whole. The first sliding portion 64 and the second sliding portion 65 are each a half-cut column obtained by cutting a cylinder having a height shorter than the length of the groove of the guide portions 47 and 57 into half. The first sliding portion 64 and the second sliding portion 65 are joined at the center of each other's rectangular surface. The column of the first sliding portion 64 extends along the first guide portion 47, and the column of the second sliding portion 65 extends along the second guide portion 57.

[0041] The fixed body 4 and the movable body 5 are integrated by the magnetic force (attractive force) acting between the yoke 45 of the fixed body 4 and the driving magnet 55 of the movable body 5 so that the surface 48 of the fixed body 4 and the back surface 59 of the movable body 5 are opposite to each other. At the same time, in the first embodiment, the straight line portion on the inner circumference of the driving coil 46 is sandwiched between the driving magnet 55 and the yoke 45. In the state where the fixed body 4 and the movable body 5 are integrated by magnetic force, the fixed body 4 and the movable body 5 are not directly opposite to each other with the sliding body 6 sandwiched in the middle, except for the four corner portions. The first sliding portion 64 of the sliding body 6 is arranged on the side of the intersection of the first guide portion 47 and the second guide portion 57 that is connected to the fixed body 4, and the second sliding portion 65 of the sliding body 6 is arranged on the side of the intersection of the first guide portion 47 and the second guide portion 57 that is connected to the movable body 5. In these configuration positions, as Figure 5 As shown, the first sliding portion 64 is in non-contact with the movable body 5, and the second sliding portion 65 is in non-contact with the fixed body 4. When a predetermined current flows through the driving coil 46 of the fixed body 4, a thrust in the X direction or the Y direction is generated by the electromagnetic action between the driving coil 46 and the driving magnet 55, and the movable body 5 and the lens driving device 2 mounted on the movable body 5 move in the X direction or the Y direction relative to the fixed body 4.

[0042] To explain in more detail, Figure 5 As shown in (A), the first sliding portion 64 of the sliding body 6 is accommodated in the first guide portion 47 of the fixed body 4. The first sliding portion 64 is in contact with the V-shaped wall surface of the first guide portion 47 on two generatrixes parallel to the X direction in the curved surface of the first sliding portion 64. Figure 5 As shown in (B), the second sliding portion 65 of the slider 6 is accommodated in the second guide portion 57 of the movable body 5. The second sliding portion 65 is in contact with the V-shaped wall surface of the second guide portion 57 on two generatrixes parallel to the Y direction in the curved surface of the second slider 65. When a thrust in the X direction is generated, the movable body 5 moves in the X direction together with the slider 6 while being guided by the first guide portion 47. When a thrust in the Y direction is generated, the slider 6 does not move, but the movable body 5 moves in the Y direction alone while being guided by the second guide portion 57.

[0043] The above is the details of the first embodiment. According to the first embodiment, the following effects can be obtained.

[0044] In the first embodiment, the guide device 3 of the optical component includes a fixed body 4, a movable body 5, and a sliding body 6 disposed therebetween. Furthermore, a first guide portion 47 for guiding the movable body 5 along a predetermined direction, i.e., the X direction, is provided on the side of the fixed body 4 that is in contact with the sliding body 6. A second guide portion 57 for guiding the movable body 5 along a Y direction that intersects the predetermined direction, i.e., the X direction, is provided on the side of the movable body 5 that is in contact with the sliding body 6. The sliding body 6 includes a first sliding portion 64 provided in a shape that follows the first guide portion 47, and a second sliding portion 65 provided in a shape that follows the second guide portion 57. In this structure, the member that guides and supports the movable body 5 so that it can move relative to the fixed body 4 is only the sliding body 6, and there is no structure in which a straight-moving mechanism in the X direction and a straight-moving mechanism in the Y direction are stacked in the Z direction. Therefore, the member holding the lens can slide in the X direction and the Y direction without increasing the component in the Z direction. Furthermore, since the first guide portion 47 and the second guide portion 57 are formed into groove shapes and are configured to accommodate the first sliding portion 64 and the second sliding portion 65 , respectively, the dimension in the Z direction can be reduced.

[0045] Furthermore, in the first embodiment, the cross-section of the groove of the first guide portion 47 and the second guide portion 57 may be arc-shaped or rectangular. Furthermore, in the first embodiment, the cross-section of the column of the first sliding portion 64 and the second sliding portion 65 may be rectangular or V-shaped. Furthermore, the first sliding portion 64 and the second sliding portion 65 may be columnar, and the outer shape of the cross-section in the extension direction may be linear, but it is also possible to form them in a curved shape. For example, it is also possible to have an outer shape such that the barrel shape is cut in half. Furthermore, the sliding body 6 may also originally form the first sliding portion 64 and the second sliding portion 65 as a whole. Furthermore, it is also possible to form the first guide portion 47 and the second guide portion 57 in a convex shape, and the first sliding portion 64 and the second sliding portion 65 in a concave shape.

[0046] In addition, as in the first embodiment, the first guide portion 47 and the second guide portion 57 are preferably provided in at least two rows, respectively. Thus, the movable body 5 is supported in a manner that does not tilt with respect to the fixed body 4. Therefore, it is not necessary to arrange the first guide portion 47 and the second guide portion 57 in groups at the four corners as in the first embodiment. For example, three groups of the first guide portion 47 and the second guide portion 57 may be arranged at the vertices of a triangle, so that each first guide portion 47 extends in a predetermined direction, and the second guide portion 57 extends in a cross direction.

[0047] In addition, in the first embodiment, the yoke 45 may be replaced with other magnets. In addition, in the first embodiment, the driving magnet 55 may be provided on the fixed body 4, and the yoke 45 may be provided on the movable body 5. In short, the driving magnet 55 may be provided on one of the fixed body 4 and the movable body 5, and the yoke 45 or other magnets may be provided on the other. In addition, the width of the driving magnet 55 may be further increased, and the inner circumference and the outer circumference of the magnetic surface may be magnetized to different magnetic poles, and the different magnetic pole portions may be opposed to the straight line portions of the driving coil 46. In addition, the combination of the fixed body 4 and the movable body 5 may not utilize magnetic force, for example, by utilizing ejection or the like to bring them closer to each other. In addition, the driving mechanism may not require the driving magnet 55 and the driving coil 46. For example, piezoelectric elements or shape memory alloys may also be utilized.

[0048] The shape and size of the through holes 41 and 51 can be set to fulfill the functions required of the through holes, and the through holes may not be provided as in the second embodiment described below. For example, the image sensor 7 may be provided on the surface 48 of the fixed body 4 without providing the through hole 41 in the fixed body 4.

[0049] <Second embodiment>

[0050] Next, use Figure 6 , 7 , a second embodiment of the present invention is described. Figure 6 and Figure 7 In the drawings, the same elements as those in the first embodiment are denoted by the same reference numerals.

[0051] The optical component guide device 3 of the first embodiment has a structure in which four sliding bodies 6 are arranged in a cross shape between each of the four corners of the fixed body 4 and the movable body 5. In contrast, the optical component guide device 3A of the second embodiment has a structure in which one sliding body 6A is arranged in a cross shape along the periphery of the fixed body 4A and the movable body 5A.

[0052] like Figure 6 and Figure 7 As shown, the guiding device 3A includes: a fixed body 4A; a movable body 5A movable relative to the fixed body 4A; a yoke 45A and four drive coils 46 arranged on the fixed body 4A; four drive magnets 55 arranged on the movable body 5A; and a sliding body 6A arranged between the fixed body 4A and the movable body 5A.

[0053] Here, in the second embodiment, the lens body 99 and the lens driving device 2 are mounted on the fixed body 4A, and the image sensor 7 is mounted on the movable body 5A. Various styles can be considered regarding the mounting structure of the lens driving device 2 on the fixed body 4A and the mounting structure of the image sensor 7 on the movable body 5A. For example, the image sensor 7 is carried on the surface 58A of the movable body 5A. The area of ​​the fixed body 4A is made larger than that of the movable body 5A. It is also possible to fix such a frame surrounding the movable body 5A to the peripheral portion of the fixed body 4A, and to carry and fix the lens driving device 2 at its upper end. In addition, the base portion of the lens driving device 2 can also be extended to have the same shape as the frame, and it can be fixed to the fixed body 4A. In addition, the outer shell (yoke) portion of the lens driving device 2 can also be extended downward and fixed to the peripheral portion of the fixed body 4A. In addition, instead of being directly fixed to the fixed body 4A, another plate-like body may be fixed to the back surface 49A of the fixed body 4A, and the frame, the extended part of the base part, the extended part of the outer shell part, etc. may be fixed to the plate-like body.

[0054] exist Figure 7 In the embodiment, first guide portions 47A are provided at slightly inner portions of both end surfaces of the surface 48A of the fixed body 4A that are opposite to each other in the Y direction. The first guide portion 47A is a groove that is recessed in a V shape from the surface 48A side of the fixed body 4A to the back surface 49A side. The first guide portion 47A extends from one end surface of the fixed body 4A that is opposite to each other in the X direction to the other end surface along the X direction.

[0055] The central part of the inner side of the first guide part 47A in the surface 48A of the fixed body 4A is recessed toward the back side 49A as the disk part 41A. The disk part 41A is square-shaped. A yoke 45A is fixed to the bottom of the disk part 41A. The yoke 45A and the bottom of the disk part 41A have the same size. A drive coil 46 is fixed on the disk part 41A above the yoke 45A.

[0056] The second guide portion 57A is provided slightly inside the two end surfaces of the back surface 59A of the movable body 5A that are opposite to each other in the X direction. The second guide portion 57A is a groove that is recessed in a V shape from the back surface 59A side of the movable body 5A to the surface 58A side. The second guide portion 57A extends from one end surface of the movable body 5A that is opposite to each other in the X direction to the other end surface along the Y direction.

[0057] The center portion of the back surface 59A of the movable body 5A, which is inside the second guide portion 57A, is recessed toward the surface 58A as a disk portion (not shown). The disk portion of the movable body 5A is square-shaped. A driving magnet 55 is fixed to the bottom of the disk portion of the movable body 5A.

[0058] The sliding body 6A is a member in which the first sliding part 64A and the second sliding part 65A of independent members are combined to form a tic-tac-toe shape as a whole. The tic-tac-toe shape refers to a shape in which two line segments extending in a predetermined direction and two line segments extending in a cross direction intersecting the predetermined direction intersect each other. The first sliding part 64A and the second sliding part 65A are each a half-cut column obtained by cutting a cylinder of a height sufficient to be combined into a tic-tac-toe shape in half. The column forming the first sliding part 64A extends along the first guide part 47A, and the column forming the second sliding part 65A extends along the second guide part 57A. The slightly inner portions of the two ends of the rectangular surface of one of the two first sliding parts 64A in the X direction are joined to the slightly inner portions of one end of the rectangular surface of each of the two second sliding parts 65A in the Y direction. The slightly inner portions of the two ends of the rectangular surface of the other first sliding portion 64A in the X direction are joined to the slightly inner portions of the other ends of the rectangular surface of the two second sliding portions 65A in the Y direction. By such joining, the shape of the sliding body 6A viewed from the Z direction is a tic-tac-toe shape.

[0059] The fixed body 4A and the movable body 5A are integrated by the magnetic force (attractive force) acting between the yoke 45A of the fixed body 4A and the driving magnet 55 of the movable body 5A so that the surface 48A of the fixed body 4A and the back surface 59A of the movable body 5A face each other. The driving magnet 55 and the driving coil 46 are also opposed to each other in the same manner as in the first embodiment. In the state where the fixed body 4A and the movable body 5A are integrated by the magnetic force, the fixed body 4A and the movable body 5A face each other with the sliding body 6A sandwiched between them on the entire circumference of the rectangular peripheral portion. The first sliding portion 64A of the sliding body 6A is arranged on the side between the fixed body 4A and the movable body 5A that is in contact with the fixed body 4A, and the second sliding portion 65A of the sliding body 6A is arranged on the side between the fixed body 4A and the movable body 5A that is in contact with the movable body 5A. In these arrangement positions, the first sliding portion 64A is non-contacting with the movable body 5A, and the second sliding portion 65A is non-contacting with the fixed body 4A. When a predetermined current flows through the driving coil 46 of the fixed body 4A, a thrust in the X direction or the Y direction is generated through the electromagnetic action between the driving coil 46 and the driving magnet 55, and the movable body 5A and the image sensor 7 installed on the movable body 5A move in the X direction or the Y direction relative to the fixed body 4A.

[0060] To explain in more detail, the first sliding portion 64A of the sliding body 6A is accommodated in the first guide portion 47A of the fixed body 4A. The first sliding portion 64A contacts the V-shaped wall surface of the first guide portion 47A on two generatrixes parallel to the X direction in the curved surface of the first sliding portion 64A. The second sliding portion 65A of the sliding body 6A is accommodated in the second guide portion 57A of the movable body 5A. The second sliding portion 65A contacts the V-shaped wall surface of the second guide portion 57A on two generatrixes parallel to the Y direction in the curved surface of the second sliding portion 65A. When a thrust in the X direction is generated, the movable body 5A moves in the X direction together with the sliding body 6A while being guided by the first guide portion 47A. When a thrust in the Y direction is generated, the sliding body 6A does not move, but the movable body 5A moves in the Y direction alone while being guided by the second guide portion 57A.

[0061] The optical component guiding device 3A of the second embodiment differs from the optical component guiding device 3 of the first embodiment only in the above-mentioned point, and the optical component guiding device 3A of the second embodiment can obtain the same effects as the optical component guiding device 3 of the first embodiment.

[0062] In the second embodiment, the yoke 45A may be provided corresponding to each driving magnet 55. On the contrary, only one driving magnet 55 may be provided in the center, and each driving coil 46 may be opposed to the one driving magnet 55. Alternatively, a driving magnet having an opposite magnetic direction may be further provided outside the one driving magnet 55, and opposed to the driving coil 46.

[0063] Description of symbols

[0064] 1 camera device; 2 lens driving device; 3 guide device; 3A guide device; 4 fixed body; 4A fixed body; 5 movable body; 5A movable body; 6 sliding body; 6A sliding body; 7 image sensor; 9 smart phone; 10 substrate; 21 lens holder; 41 through hole; 41A disk portion; 42 recessed portion; 43 middle section surface; 44 bottom surface; 45 yoke; 45A yoke; 46 driving coil; 47 first guide portion; 47A first guide portion; 48 surface; 48A surface; 49 back surface; 49A back surface; 51 through hole; 52 recessed portion; 55 driving magnet; 57 second guide portion; 57A second guide portion; 58 surface; 58A surface; 59 back surface; 59A back surface; 64 first sliding portion; 64A first sliding portion; 65 second sliding portion; 65A second sliding portion; 90 housing; 99 lens body.

Claims

1. A guiding device for an optical component, characterized in that have: Fixed body; A movable body movable with respect to the fixed body; and a sliding body disposed between the fixed body and the movable body, A first guide portion is provided on the surface of the fixed body on the side in contact with the sliding body. The first guide portion is a groove extending in a predetermined direction and guides the movable body. A second guide portion is provided on the back side of the movable body on the side in contact with the sliding body, wherein the second guide portion is a groove extending along a direction intersecting the predetermined direction and guiding the movable body. The sliding body has a first sliding portion provided in a shape following the groove of the first guide portion, and a second sliding portion provided in a shape following the groove of the second guide portion, The first sliding portion is a column having a height shorter than the length of the groove of the first guide portion, and has a rectangular surface provided on the second sliding portion side of the column along the groove of the first guide portion, The second sliding portion is a column having a height shorter than the length of the groove of the second guide portion, and has a rectangular surface provided on the first sliding portion side of the column along the groove of the second guide portion, The first sliding part and the second sliding part are joined to each other in a manner that they intersect at the center of each other's rectangular surfaces or are originally formed as one body. The fixed body and the movable body are arranged so that the surface of the fixed body and the back surface of the movable body face each other, the first sliding portion of the sliding body is accommodated in the first guide portion of the fixed body, and the second sliding portion of the sliding body is accommodated in the second guide portion of the movable body.

2. The guiding device for an optical component according to claim 1, wherein: The first sliding portion is in non-contact with the movable body, and the second sliding portion is in non-contact with the fixed body.

3. The guiding device for an optical component according to claim 1, wherein: The sliding body is arranged at a position where the first guide portion and the second guide portion intersect.

4. The guiding device for an optical component according to claim 1, wherein: The first guide parts and the second guide parts are respectively arranged in at least two rows.

5. The guiding device for an optical component according to claim 1, wherein: The cross section of the groove of the first guide portion or the second guide portion is arc-shaped, rectangular-shaped, or V-shaped.

6. The guiding device for an optical component according to claim 1, wherein: The cross section of the column of the first sliding part or the second sliding part is arc-shaped, rectangular-shaped, or V-shaped.

7. The guiding device for an optical component according to claim 1, wherein: The sliding body is formed in a cross shape.

8. The guiding device for an optical component according to claim 1, wherein: The fixed body and the movable body are opposed to each other with the sliding body interposed therebetween.

9. The guiding device for an optical component according to claim 1, wherein: One of the fixed body and the movable body has a magnet, and the other of the fixed body and the movable body has a magnetic body or another magnet that attracts the magnet.

10. A camera device comprising: The guiding device for an optical component according to claim 1; a lens driving device for moving a lens body for receiving light from a photographic subject in a direction of an optical axis of the lens body; and an image sensor receiving light from the lens body, The lens driving device is mounted on the movable body, and the image sensor is mounted on the fixed body.

11. A camera device comprising: The guiding device for an optical component according to claim 1; a lens driving device for moving a lens body for receiving light from a photographic subject in a direction of an optical axis of the lens body; and an image sensor receiving light from the lens body, The lens driving device is mounted on the fixed body, and the image sensor is mounted on the movable body.

12. An electronic device comprising the camera device according to claim 10 or 11.

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