Shaking device, optical device and electronic device

Abstract

This invention provides a rocking device, an optical device, and an electronic device that simplify the structure of a rocking support mechanism and are easy to assemble. The rocking device includes a frame-shaped first component, a second component disposed inside the first component with a gap between it and the first component, a rubber elastic component with rubber elasticity disposed between the first component and the second component, supporting the second component and rocking freely relative to the first component, and a drive component that drives the second component to rock relative to the first component.

Description

[Technical Field]

[0001] This invention relates to shaking devices, optical devices, and electronic devices. [Background Technology]

[0002] As is well known, traditional camera devices with shake compensation function require shaking the camera to compensate for shake.

[0003] Previous cases related to this type of lens driving device are described in Patent Document 1.

[0004] [Existing Technical Documents]

[0005] [Patent Documents]

[0006] [Patent Document 1] JP 2019-204033. [Summary of the Invention]

[0007] [The technical problem this invention aims to solve]

[0008] However, in the traditional case mentioned above, the structure of the rocking support mechanism is to weld a metal ball to the movable side, install a leaf spring on the fixed side, and set a bearing part on the leaf spring to accommodate the ball. Therefore, there is a problem that the structure is complex and not easy to assemble.

[0009] The present invention aims to eliminate the problems existing in the above-mentioned conventional cases and provide a shaking device, optical device and electronic device with a simple structure and easy assembly that can shake the support mechanism.

[0010] [Technical Solution]

[0011] One embodiment of the present invention is a rocking device, comprising a frame-shaped first component, a second component disposed inside the first component with a gap between it and the first component, a rubber elastic component disposed between the first component and the second component, supporting the second component and freely rocking relative to the first component, and a driving component for driving the second component to rock relative to the first component.

[0012] Preferably, a retaining groove is formed on at least one side of the first component and the second component, and a portion of the rubber elastic component is embedded in the retaining groove. Furthermore, comb-like grooves intersecting the retaining groove may also be formed on either side or both sides of the first component and the second component.

[0013] Furthermore, the first and second components are square-shaped, the rubber elastic component can be disposed at the corners of the first and second components, and the driving component can be disposed at the edges of the first and second components.

[0014] Furthermore, a rocking tolerance groove is formed on the first component that contacts the rubber elastic component, and the cross-sectional shape of the rocking tolerance groove in the rocking direction is an arc centered on the center of the second component.

[0015] The shape of the rubber elastic component is not limited, and it can take the form of an elongated shape including a circular cross-section, a spherical cross-section, or a quadrangular cross-section.

[0016] Furthermore, another embodiment of the present invention is an optical device, in which an optical component is fixed to the second component. Furthermore, another embodiment of the present invention is that the optical component is a photographic device. Furthermore, another embodiment of the present invention is an electronic device including the photographic device.

[0017] [Invention Effects]

[0018] According to the present invention, a rubber elastic member including rubber elasticity is disposed between the first component and the second component, and the second component is rocked relative to the first component by means of the rubber elastic member. Therefore, the rocking support mechanism has a simple structure and is easy to assemble. [Attached Image Description]

[0019]

【 Figure 1 [A perspective view of a photographic apparatus using the shaking device according to the first embodiment of the present invention.]

[0020]

【 Figure 2 [This is an exploded perspective view of a photographic apparatus using the shaking device according to the first embodiment of the present invention.]

[0021]

【 Figure 3 [A perspective view showing a portion of the rocking device according to the first embodiment of the present invention.]

[0022]

【 Figure 4 [A perspective view of a photographic apparatus using the shaking device according to the second embodiment of the present invention.]

[0023]

【 Figure 5 [This is an exploded perspective view showing the rocking device according to the second embodiment of the present invention.]

[0024]

【 Figure 6 [This is a perspective view showing the rocking device according to the third embodiment of the present invention.]

[0025]

【 Figure 7 [This is a perspective view showing a portion of the rocking device according to the fourth embodiment of the present invention.]

[0026]

【 Figure 8 [This is a cross-sectional perspective view showing a portion of the rocking device according to the fifth embodiment of the present invention.]

[0027]

【 Figure 9[A schematic diagram showing the relationship between the rubber elastic component and the rocking tolerance groove in the rocking device according to the fifth embodiment of the present invention.]

[0028]

【 Figure 10 [This is a cross-sectional perspective view showing a portion of the rocking device according to the sixth embodiment of the present invention.]

Detailed Implementation Methods

[0029] Figures 1 to 3 This illustrates a first embodiment of the present invention.

[0030] The panning device 10, in a three-dimensional XYZ Cartesian coordinate system, includes a first component 12 and a second component 14 that appear as a four-cornered frame when viewed from the Z direction. The second component 14 is disposed inside the first component 12. The first component 12 is, for example, a fixed component, and the second component 14 constitutes a movable component that pans relative to the first component 12. An optical component (i.e., a camera assembly 16) is fixed to the second component 14, and the photographic device 18 is composed of the panning device 10 and the camera assembly 16.

[0031] Furthermore, in this specification, the Z direction is defined as the optical axis direction of the photographic device 18, the +Z side (i.e., the subject side) is defined as the front side, and the -Z side (i.e., the image sensor side) is defined as the rear side.

[0032] The first component 12 consists of four corner portions 20 and four sides 22 connecting the four corner portions 20. On the inner side of each of the four corner portions 20, a protrusion 24 is formed protruding toward the center of the first component 12. When viewed from the Z direction, the inner surface of the protrusion 24 is arc-shaped.

[0033] Furthermore, the second component 14 is composed of four corner portions 26 facing the four corner portions 20 and four side portions 28 connecting the four corner portions 26 respectively. On the outer side of the four corner portions 26, concave portions 30 that are arc-shaped when viewed from the Z direction are formed, facing the protrusions 24 respectively.

[0034] A gap is formed around the entire circumference of the first component 12 and the second component 14. Inside the first component 12, the second component 14 is coaxially positioned with the gap between them. This axis coincides with the optical axis and the center of the quadrilateral of the first component 12 and the second component 14. On the inner side of the edge 22 of the first component 12, except for the coil housing 34 described later, a segment 32 is provided at the center in the Z direction, with its rear side protruding inward. The segment 32 extends parallel to the X-axis or Y-axis. The inner surface of the protrusion 24 is the same as the inner surface of the rear portion of the segment 32 of the corner 20. Furthermore, a first component-side retaining groove 36 is formed at the center in the Z direction on the inner surface of the protrusion 24 of the first component 12. The first component-side retaining groove 36 extends along the inner surface of the protrusion 24 in a direction orthogonal to the Z direction, and cuts small slits into the segment 32 at both ends. The cross-sectional shape of the first component-side retaining groove 36 in the direction including the optical axis is arc-shaped.

[0035] On the other hand, a second component-side retaining groove 38 is formed at the center of the Z-direction outside the recess 30 of the second component 14, facing the first component-side retaining groove 36. The second component-side retaining groove 28 extends in a direction orthogonal to the Z-direction, and its cross-sectional shape in the direction including the optical axis is arc-shaped.

[0036] The second component 14 is supported by the rubber elastic component 40 and can swing freely relative to the first component 12. The rubber elastic component 40 is composed of materials that include rubber elasticity, such as synthetic rubber, natural rubber, foamed resin, etc. As is well known, rubber elasticity refers to the material property accompanied by entropy, and compared with energy elastic components such as springs, it has high elongation and high resilience.

[0037] In this first embodiment, the rubber elastic component 40 presents an elongated shape including a circular cross-section. For example... Figure 3 As shown, in the rubber elastic member 40, except for the central arc portion which is embedded in the first component-side retaining groove 36 and the second component-side retaining groove 38, the remaining portion is compressed. If the rubber elastic member 40 is pressed into the gap between the corner 20 of the first component 12 and the corner 26 of the second component 14 from the +Z direction, the rubber elastic member 40 contracts in the XY direction and is embedded between the first component-side retaining groove 36 and the second component-side retaining groove 38. Adhesives or the like can be used to fix either one or the other. Therefore, the rocking support mechanism composed of the first component-side retaining groove 36 of the first component 12, the second component-side retaining groove 38 of the second component 14, and the rubber elastic member 40 has a simple structure and is easy to assemble.

[0038] The coil receiving portion 34 is disposed at the center of the inner surface of each of the four sides 22 of the first component 12, causing the segment 32 to be recessed outward. For example... Figure 3As shown, the coil housing 34 houses the yoke 42 fixed to the first component 12 and the coil 44 fixed to the yoke 42. The coil 44 consists of two parts extending in the X or Y direction and two parts extending in the Z direction in contact.

[0039] Furthermore, on the outside of each of the four edges 28 of the second component 14, a magnet receiving portion 46 is formed, recessed inward. A magnet 48 is housed in this magnet receiving portion 46. Two magnetic plates are mounted on the magnet 48, facing each other opposite to the portion of the coil 44 extending in the X or Y direction, and adjacent in the Z direction. The magnet 48 includes mutually different magnetic poles facing outward on each magnetic plate. Figure 3 As shown, the magnet 48 is positioned across the gap from the coil 44. The coil 44, magnet 48, and yoke 42 constitute a driving component that drives the second component 14 relative to the first component 12.

[0040] Furthermore, contrary to the embodiment described above, the coil 44 and the yoke 42 can be disposed on the second component 14, and the magnet 48 can be disposed on the first component 12. Moreover, it is also possible to omit the yoke 42.

[0041] Camera assembly 16 is fixed to the inner surface of second component 14 from the -Z side. The camera assembly 16 is structured to house lens 52 within a housing 50. Viewed from the Z direction, housing 50 is rectangular, and a circular entrance aperture 54 is formed on its top to allow light to enter. Lens 52 is supported by a lens support (not shown), which moves in the Z direction via a well-known autofocus mechanism to adjust the light from entrance aperture 54 so that it is focused onto an image sensor (not shown).

[0042] The flexible substrate 56 is connected to the camera assembly 16. The flexible substrate 56 extends beyond the first component 12 and protrudes outward from one side 22 of the first component 12. In order not to hinder the movement of the camera assembly 16, a cut 58 is formed at the protruding part of the flexible substrate 56 in the first component 12.

[0043] The following describes an example of the operation of the rocking device 10 according to the embodiment. For example, in order to rock the second component 14 relative to the first component 12 around the X-axis, the +Y side coil 44 and the -Y side coil 44 are energized, for example, causing the magnet 48 on the +Y side to generate a thrust in the +Z direction (or a thrust in the -Z direction), and causing the magnet 48 on the -Y side to generate a thrust in the -Z direction (or a thrust in the +Z direction). As a result, the second component 14 is subjected to a rotating thrust around the X-axis. If the second component 14 is subjected to a rotating thrust around the X-axis, each of the rubber elastic components 40 (especially the portions of the rubber elastic components 40 that are not embedded in the first component side retaining groove 36 and the second component side retaining groove 38) deforms, and the second component 14 rocks relative to the first component around the X-axis.

[0044] Furthermore, if the energizing of the +Y side coil 44 and the -Y side coil 44 is stopped from the state of the second component 14 oscillating around the X-axis relative to the first component 12, the second component 14 returns to its original position by the restoring force of the rubber elastic component 40.

[0045] Similarly, if the +X side coil 44 and the -X side coil 44 are energized, the second component 14 can be rocked around the Y-axis relative to the first component 12. Moreover, by suppressing the energization of the four coils 44, the second component 14 can be rocked relative to the first component 12 at a desired angle relative to the X-axis and Y-axis.

[0046] Figure 4 as well as Figure 5 This illustrates a second embodiment of the present invention.

[0047] In this second embodiment, two camera assemblies 16, 16 are provided on the shaking device 10 of the photographic device 18.

[0048] That is, the shaking device 10 includes a first component 12 in the shape of a rectangular frame and a second component 14 in the shape of a rectangular frame. Two camera assemblies 16 are fixed on the first component 12. In this second embodiment, as in the first embodiment, a rubber elastic component 40 is inserted between the corner 20 of the first component 12 and the corner 26 of the second component 14.

[0049] In this second embodiment, the two camera components 16, 16 can be tilted simultaneously and in the same direction.

[0050] Furthermore, for parts identical to those in the first embodiment, the same numbering is used on the drawings to omit their description. The same applies to the third to sixth embodiments described below.

[0051] Figure 6 This illustrates a third embodiment of the present invention.

[0052] The rubber elastic component 40 in this third embodiment is spherical. Similar to the second embodiment, this spherical rubber elastic component 40 is located between the corner 20 of the first component 12 and the corner 26 of the second component 14. Except for the central portion, the remaining portion of the rubber elastic component 40 is embedded in the hemispherical first component-side retaining groove 36 and the second component-side retaining groove 38 formed on the first component 12 and the second component 14.

[0053] Figure 7 This illustrates a fourth embodiment of the present invention.

[0054] In this fourth embodiment, comb-shaped grooves 60, 60 are formed in the direction intersecting with the first component-side retaining groove 36 and the second component-side retaining groove 38. The comb-shaped grooves 60, 60 are multiple grooves formed parallel to the Z-axis, which can expand the deformable area of ​​the rubber elastic component 40 and make the rubber elastic component 40 easier to deform.

[0055] Furthermore, in this fourth embodiment, comb-shaped grooves 60, 60 are formed on both the first component 12 and the second component 14, but the comb-shaped grooves may also be formed on only either the first component 12 or the second component 14.

[0056] Figure 8 as well as Figure 9 This illustrates the fifth embodiment of the present invention.

[0057] In this fifth embodiment, a rocking allowable groove 62 is formed on the first component 12, replacing the retaining groove 36 on the first component side. The cross-sectional shape of the rocking allowable groove 62 in the rocking direction is as follows: Figure 9 As shown, the rocking support mechanism is formed in an arc shape with the center of rocking (i.e., the center of the second component 14) as the center and the distance from the center O as the radius, in the direction of rocking of the second component 14. The rubber elastic component 40 is compressed to a certain degree of deformation and contacts the rocking allowance groove 62. If the second component 14 rocks, the rubber elastic component 40 will rock the rocking allowance groove 62 to flip it over, or it will slide and rock together with the second component 14, thereby allowing the rocking of the second component 14. Thus, the rocking support mechanism composed of the rocking allowance groove 62 of the first component 12, the second component side retaining groove 38 of the second component 14, and the rubber elastic component 40 is simple in structure and easy to assemble.

[0058] Figure 10 The sixth embodiment of the present invention is shown.

[0059] In this sixth embodiment, the rubber elastic member 40 is formed with a four-cornered cross-section. A portion of the rubber elastic member 40 is embedded in the first member-side retaining groove 36 and the second member-side retaining groove 38. Furthermore, the rubber elastic member 40 may have multiple elongated cavities 64 formed internally in the X or Y direction along the Z direction, allowing the rubber elastic member 40 to easily deform in the Z direction. The cavities 64 may also be cut into them.

[0060] Furthermore, the situations described in the third to sixth embodiments can be applied to both the first and second embodiments. Moreover, while the embodiments show a shaking device capable of shaking the camera assembly, the present invention is not limited thereto and can also be applied to devices for adjusting the light-emitting position of a light-emitting element, adjusting the position of semiconductors in a manufacturing process, etc.

[0061] [Symbol Explanation]

[0062] 10. Shaking device

[0063] 12 First Component

[0064] 14 Second Component

[0065] 16 Camera components

[0066] 18 Camera devices

[0067] 20, 26 corner

[0068] 22, 28 Edges

[0069] 24. Protrusion

[0070] 30 concavity

[0071] Section 32

[0072] 34 Coil housing section

[0073] 36 First component side retaining groove

[0074] 38 Second component side retaining groove

[0075] 40 Rubber elastic components

[0076] 42 yoke

[0077] 44 coils

[0078] 46 Magnet Containment Department

[0079] 48 magnet

[0080] 50 box

[0081] 52 Lenses

[0082] 54 entrance holes

[0083] 56 Flexible substrates

[0084] 58 Incisions

[0085] 60. Comb-like grooves

[0086] 62 Shaking allowance groove

[0087] 64. Hollow section.

Claims

1. A shaking device, characterized in that: In a three-dimensional XYZ Cartesian coordinate system, including The first component, which appears as a frame when viewed from the Z direction, A second component, separated from the first component by a gap and disposed inside the first component, A rubber-elastic component, disposed between the first component and the second component, supporting the second component and freely swaying relative to the first component around the X-axis or Y-axis, possessing rubber elasticity. A drive component that drives the second component to oscillate relative to the first component around the X-axis or Y-axis. The first component has a rocking tolerance groove that contacts the rubber elastic component. The cross-sectional shape of the rocking tolerance groove in the rocking direction is an arc centered on the center of the second component, and the two rocking tolerance grooves sandwich the center on both sides. A retaining groove is formed in the second component, and two of the retaining grooves correspond to the rocking allowance groove and sandwich the center on both sides, and a portion of the rubber elastic component is embedded in the retaining groove; The driving component consists of a coil disposed on one of the first component or the second component and a magnet disposed on the other of the first component or the second component; In order to make the second component swing around the X-axis relative to the first component, the coil on the +Y side and the coil on the -Y side are energized, so that the magnet or the coil on the +Y side of the second component generates a thrust in the +Z direction or a thrust in the -Z direction, and the magnet or the coil on the -Y side of the second component generates a thrust in the -Z direction or a thrust in the +Z direction. In order to make the second component oscillate relative to the first component around the Y-axis, the coil on the +X side and the coil on the -X side are energized, so that the magnet or the coil on the +X side of the second component generates a thrust in the +Z direction or a thrust in the -Z direction, and the magnet or the coil on the -X side of the second component generates a thrust in the -Z direction or a thrust in the +Z direction.

2. The shaking device according to claim 1, characterized in that, The second component forms a comb-tooth-shaped groove that intersects with the retaining groove.

3. The shaking device according to claim 1, characterized in that, The first and second components are square-shaped, and the rubber elastic components are disposed at the corners of the first and second components.

4. The shaking device according to claim 3, characterized in that, The drive component is disposed on the edge of the first component and the second component.

5. The shaking device according to claim 1, characterized in that, The rubber elastic component is an elongated shape with a circular cross-section.

6. The shaking device according to claim 1, characterized in that, The rubber elastic component is spherical.

7. The shaking device according to claim 1, characterized in that, The rubber elastic component is compressed to deform and comes into contact with the rocking tolerance groove.

8. An optical device, characterized in that: Includes fixing optical components on the second component as described in claim 1.

9. A photographic apparatus, characterized in that: Includes the shaking device as described in claim 1.

10. The photographic apparatus according to claim 9, characterized in that: The camera assembly, which houses the lens within the housing, is fixed to the second component.

Images