CN206788528U - Bi-axial tilt head, photographic means, Optical devices and electronic equipment - Google Patents

Abstract

The utility model discloses a kind of bi-axial tilt head 10, the bi-axial tilt head 10 has：Internal maintaining part 18, outside maintaining part 20 positioned at the internal periphery of maintaining part 18, it is coupled by the internal maintaining part 18 and the outside maintaining part 20, the internal maintaining part 18 is retained as the pars intermedia 22 around X-axis and around the Y-axis free inclination activity to be intersected vertically with the X-axis for the outside maintaining part 20, the magnet 12 being fixed in the internal maintaining part 18, and be fixed in outside maintaining part 20, it is configured at multiple coils 32 in face of the position of the magnet 12；Wherein, the magnet 12 magnetizes along the direction between the X-axis and the Y-axis.Bi-axial tilt head, photographic means, Optical devices and the electronic equipment of miniaturization can be obtained being easy to according to the utility model.

Description

Biaxial tilt movement device, camera device, optical device, and electronic apparatus

[ technical field ] A method for producing a semiconductor device

The utility model relates to a carry on for camera device biax slope head on cell-phone or smart mobile phone etc. possesses this biax slope head's camera device, optical device to and electronic equipment.

[ background of the invention ]

The conventional biaxial tilt mechanism may include an elastic support member having a gimbal structure, a plurality of tilt coils, and a plurality of permanent magnets. The elastic support member supports the movable portion including the holding member so as to be movable obliquely with respect to the fixed member. The plurality of tilt coils are provided on either the movable portion or the fixed member on the outer periphery of the elastic support member. Further, a plurality of permanent magnets are provided on the outer periphery of the elastic support member in either one of the movable portion and the fixed member, and are arranged so as to protrude toward the center of each of the plurality of tilt coils (for example, patent document 1).

[ Prior art documents ]

[ patent document ]

[ patent document 1 ] JP2016-033685A

[ Utility model ] content

[ problem to be solved by the present invention ]

However, the conventional biaxial tilt mechanism has a problem in that: the plurality of coils and the plurality of permanent magnets are all disposed on the outer periphery of the elastic support member, and miniaturization is difficult.

The object of the present invention is to solve the above-mentioned problems and to provide a biaxial tilt mechanism, a camera device, an optical device, and an electronic apparatus, which are easy to miniaturize.

[ technical solution ] A

A feature of the utility model is that a biax slope head, this biax slope head has: an inner holding portion, an outer holding portion located around the inner holding portion, an intermediate portion coupled to the inner holding portion and the outer holding portion so that the inner holding portion is held by the outer holding portion so as to be movable obliquely about an X axis and about a Y axis perpendicular to the X axis, a magnet fixed to the inner holding portion, a plurality of coils fixed to the outer holding portion and arranged at positions facing the magnet; wherein the magnet is magnetized in a direction between the X-axis and the Y-axis.

Preferably, the coil is configured such that a current flowing to a portion facing the magnet is in the X-axis direction or the Y-axis direction.

Preferably, the magnet is formed in a quadrilateral shape having four sides extending in the X-axis direction or the Y-axis direction, and the coil is disposed along each side of the magnet. The magnet may be circular.

Preferably, a magnetic body is disposed on a side of the coil facing the magnet.

Further, it is preferable that the magnet has a plurality of magnet pieces overlapping in a Z-axis direction perpendicularly intersecting the X-axis and the Y-axis, and magnetization directions of the magnet pieces are opposite to each other.

Further, preferably, the entire surface of the coil faces the magnet piece.

Another aspect of the present invention provides a camera device, comprising: the lens module receives light from an object through a lens to an imaging element, and the biaxial inclination moving device fixes the lens module on the internal holding part or the external holding part.

Furthermore, the present invention relates to a camera device comprising: the optical pickup device may further include a refractive element for refracting an optical path of a light beam from an object, an image pickup element for receiving the light beam from the refractive element, and a biaxial tilt mechanism for fixing the refractive element to the internal holding portion or the external holding portion.

Furthermore, the present invention relates to a camera device comprising: the image pickup device may further include a lens for condensing light from the subject, an image pickup element for receiving the light from the lens, and a biaxial tilt mechanism for fixing the image pickup element to the internal holding portion or the external holding portion.

Furthermore, another aspect of the present invention provides an optical device, comprising: an optical element for passing light, and a biaxial tilt mechanism for fixing the optical element to the internal holding part or the external holding part.

Furthermore, another aspect of the present invention provides an optical device, comprising: a refraction element for refracting the light path of the light, and a biaxial inclination moving device for fixing the refraction element on the internal holding part or the external holding part.

Further, another aspect of the present invention provides an electronic device including the camera device or the optical device.

[ PROBLEMS ] the present invention

According to the utility model discloses, possess the magnet that is fixed in inside holding portion and be fixed in outside holding portion, towards the plurality of coils of magnet, magnet is magnetized along the direction between X axle and the Y axle, consequently can provide the biax slope head that easily miniaturizes.

[ description of the drawings ]

Fig. 1 is a plan view of a two-axis reclining mechanism according to embodiment 1 of the present invention.

Fig. 2 is an oblique view of the dual-axis tilt mechanism with mirror in embodiment 1 of the present invention, viewed from the + Z-axis direction.

Fig. 3 is an oblique view of the double-shaft tilting mechanism with mirror in embodiment 1 of the present invention, viewed from the-Z-axis side.

Fig. 4 is an exploded perspective view of a two-axis reclining mechanism according to embodiment 1 of the present invention.

Fig. 5 is a perspective view of the double-axis reclining mechanism according to embodiment 1 of the present invention.

Fig. 6 is a plan view of the double-axis tilting mechanism according to embodiment 1 of the present invention, in which a mirror and a base are provided.

Fig. 7 is a sectional view of the two-axis reclining mechanism according to embodiment 1 of the present invention, taken along line a-a of fig. 6.

Fig. 8 is a sectional view of the two-axis reclining mechanism according to embodiment 1 of the present invention, taken along line B-B of fig. 6.

Fig. 9 is a side view of the biaxial tilt mechanism of the present invention in embodiment 1, which is provided with a mirror and a base.

Fig. 10 is a cross-sectional view taken along line C-C of fig. 9 of a biaxial tilt mechanism according to embodiment 1 of the present invention.

Fig. 11 is a perspective view of a camera device using a two-axis tilting mechanism according to embodiment 1 of the present invention.

Fig. 12 is a plan view of a two-axis reclining mechanism according to embodiment 2 of the present invention.

Fig. 13 is an oblique view of a two-axis reclining mechanism according to embodiment 3 of the present invention.

Fig. 14 is an oblique view of a two-axis reclining mechanism according to embodiment 4 of the present invention.

[ reference numerals ]

10 double-shaft tilting movable device

12 magnet

14 a-14 d coil

16 gimbal

18 internal holding part

20 external holding part

22 intermediate part

28 mirror

32 magnetic yoke

[ detailed description ] embodiments

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 shows the main components of a two-axis reclining mechanism 10 according to embodiment 1 of the present invention. The biaxial tilt mechanism 10 includes a magnet 12 and, for example, 4 coils 14A to 14 d.

The magnet 12 is formed in a rectangular plate shape, for example, and four sides thereof extend in the X direction and the Y direction perpendicular to the X direction. The magnet 12 is magnetized in a P direction between the X-axis direction and the Y-axis direction, for example, at 45 degrees to the X-axis direction and the Y-axis direction. The magnetization may be in the Q direction perpendicular to the P direction, or in the X direction and the Y direction. In the example of fig. 1, the sides on the + X side and the + Y side of the magnet 12 are magnetized to the N pole, and the sides on the-X side and the-Y side are magnetized to the S pole.

The four coils 14a to 14d are wound in a substantially rectangular shape around a Z-axis direction perpendicular to the X-axis and the Y-axis. The four coils 14a to 14d face the side surfaces of the magnet 12 with gaps therebetween. That is, coil 14a faces the side of magnet 12 in the + Y axis direction, coil 14b faces the side of magnet 12 in the + X axis direction, coil 14c faces the side of magnet 12 in the-Y axis direction, and coil 14d faces the side of magnet 12 in the-X axis direction.

The coils 14a and 14c are linearly arranged at portions facing the side surfaces of the magnet 12 in the Y axis direction, and are wired or controlled so that currents flow in opposite directions to each other in the X axis direction. The coils 14b and 14d are linear in the portions facing the side surfaces of the magnet 12 in the X axis direction, and are wired or controlled so that currents flow in opposite directions to each other in the Y axis direction.

The biaxial tilt mechanism 10 shown in fig. 2 includes a gimbal 16. The gimbal 16 includes an inner holding portion 18, an outer holding portion 20 located around the inner holding portion 18, and an intermediate portion 22 disposed between the inner holding portion 18 and the outer holding portion 20. The internal holding portion 18, the external holding portion 20, and the intermediate portion 22 are each formed as a rectangular frame having elasticity.

The internal holding portion 18 and the intermediate portion 22 are coupled in the Y-axis direction by first coupling portions 24a, 24b, and 24b that are thin in the X-axis direction, and the ends of the first coupling portions 24a, 24b, and 24b in the X-axis direction are not coupled to the internal holding portion 18 and the intermediate portion 22. Therefore, the first coupling portions 24a, 24a and 24b, 24b are free to bend in the X-axis direction, and the internal holding portion 18 is free to tilt about the X-axis with respect to the intermediate portion 22.

The external holding portion 20 and the intermediate portion 22 are coupled to each other in the Y-axis direction by second coupling portions 26a, 26b, and 26b that are thin in the Y-axis direction, and the ends of the second coupling portions 26a, 26b, and 26b in the Y-axis direction are not coupled to the external holding portion 20 and the intermediate portion 22. Therefore, the second coupling portions 26a, 26a and 26b, 26b are free to bend in the Y-axis direction, and the outer holding portion 20 is free to tilt about the Y-axis with respect to the intermediate portion 22. Therefore, the inner holding portion 18 and the outer holding portion 20 are movable obliquely in the X-axis direction and the Y-axis direction with respect to each other via the intermediate portion 22.

The mirror 28 is formed in a quadrangular shape. As shown in fig. 3 and 4, the mirror 28 is mounted on a mirror mounting base 30 which is also formed in a rectangular shape. The mirror mount 30 has a Z-axis end surface fixed to the internal holding portion 18, which has a shape almost identical to that of the internal holding portion 18. The mirror 28 is located inside the internal holding portion 18 with the reflecting surface facing in the Z-axis direction. From the viewpoint of control accuracy, the Z-direction position of the reflecting surface of the mirror 28 is preferably matched with the Z-direction positions of the groove portions of the 1 st coupling portions 24a, 24b and the second coupling portions 26a, 26 b.

However, the mirror 28 does not need to have a reflecting surface formed in a direction perpendicular to the Z direction as in the present embodiment, and the angle of the mirror 28 can be appropriately adjusted. In the present embodiment, the mirror 28 is used as the tilting target, but the present invention is not limited thereto, and optical components such as a prism, a lens, and an optical sensor may be used as the tilting target.

The yoke 32 is made of a magnetic material, and as shown in fig. 4, includes a rectangular frame-shaped body portion 34 and four protruding portions 36 extending in the-Z direction from the body portion 34. The protruding portion 36 is inserted into the coils 14a to 14d without contacting the coils 14a to 14 d. Therefore, the magnet 12 and the projection 36 are configured to sandwich the portion of the coils 14a to 14d facing the magnet 12, and the magnetic flux interlinking with the coils 14a to 14d is increased. With this configuration, the portions of the coils 14a to 14d facing the magnet 12 are not magnetically linked thereto.

The biaxial tilt movement device 10 according to embodiment 1 of the present invention will be described in more detail with reference to fig. 5 to 10.

The external holding portion 20 of the gimbal 16 is fixed to the base 38. The base 38 is, for example, a member on the main body side of the camera device 42 described later, and is formed in a rectangular plate shape, and has fixing portions 40 protruding in the Z direction at the ± X axis direction ends and the ± Y axis direction ends, respectively. The end of the fixing portion 40 is fixed to the external holding portion 20 of the gimbal 16.

The magnet 12 and the yoke 32 are fixed to the back surface of the mirror mounting base 30. Therefore, the magnet 12, the mirror 28, the mirror mounting base 30, and the yoke 32 are integrated and fixed to the internal holding portion 18 of the gimbal 16.

On the other hand, the coils 14a to 14d are fixed to the inner surface of the base 38. Therefore, the coils 14a to 14d are integrated with the base 38 and fixed to the external holding portion 20 of the gimbal 16. As described above, the mirror 28 is fixed to the base 38 by the gimbal 16, the coils 14a to 14d are fixed to the base 38, and the magnet 12 is fixed to the mirror 28.

In the above configuration, when the + X axis side coil 14b and the-X axis side coil 14d are energized, the current flows in the + Y direction and the-Y direction in the linear portions of the respective coils 14b and 14d facing the magnet 12, respectively. The electromagnetic force in the-Z direction is generated on the coil 14b side, and the electromagnetic force in the + Z direction (lorentz force) is generated on the coil 14d side, and the reaction force thereof is generated on the magnet 12. If the magnet 12 generates a reaction force of the electromagnetic force, the mirror 28 attempts to rotate about the Y-axis together with the magnet 12, the mirror mounting table 30, and the yoke 32. Here, the outer holding portion 20 and the intermediate portion 22 are coupled by second coupling portions 26a, 26b of thin wall shape that are freely bendable in the Y-axis direction, and the intermediate portion 22 is coupled to the inner coupling portion 18 by first coupling portions 24a, 24b that are hard to bend in the Y-axis direction. Thus, the inner link 18 is angularly movable about the Y-axis together with the intermediate portion 22, allowing the mirror 28 to be angularly movable about the Y-axis. A current in the same direction (for example, clockwise) is applied to the + X axis side coil 14b and the-X axis side coil 14 b. The currents flowing through the + X axis coil 14b and the-X axis coil 14b are preferably equal, and the reaction forces acting on the magnet 12 are preferably equal.

On the other hand, when the + Y axis side coil 14a and the-X axis side coil 14c are energized, the current flows in the + X direction and the-X direction in the linear portions of the respective coils 14a and 14c facing the magnet 12, respectively. The coil 14a generates an electromagnetic force in the + Z direction, and the coil 14c generates an electromagnetic force in the-Z direction (lorentz force), and the reaction force thereof is generated in the magnet 12. If the magnet 12 generates a reaction force of the electromagnetic force, the mirror 28 attempts to rotate about the X-axis together with the magnet 12, the mirror mounting table 30, and the yoke 32. Here, the internal holding portion 18 and the intermediate portion 22 are coupled by first coupling portions 24a, 24b, and 24b of thin wall shape that are freely bendable in the X-axis direction, and the intermediate portion 22 is coupled to the external coupling portion 20 by second coupling portions 26a, 26b, and 26b that are hard to bend in the X-axis direction. Thus, the inner linkage 18 is angularly movable about the X-axis, allowing the mirror 28 to be angularly movable about the X-axis. A current in the same direction (for example, counterclockwise) is applied to the + Y axis side coil 14a and the-Y axis side coil 14 c. The currents flowing through the + Y axis coil 14a and the-Y axis coil 14c are preferably equal, and the reaction forces acting on the magnet 12 are preferably equal.

As described above, the mirror 28 can be tilted about any axis perpendicular to the Z axis by controlling the amount of energization to the ± X-axis side coils 14b, 14d and the ± Y-axis side coils 14a, 14 c.

Fig. 11 shows a camera 42 provided with the biaxial inclination movement device 10 relating to the above-described embodiment. In this photographic apparatus 42, the biaxial inclination movable apparatus 10 is used as a part of the shake correction apparatus.

The camera 42 includes a front lens 44 along the optical axis O, and is reflected in the direction of the optical axis W perpendicularly intersecting the optical axis O by a mirror 28 provided in the biaxial tilt mechanism 10. The rear lens 46 is disposed along the optical axis W and collects the light reflected by the mirror 28. A light receiving sensor (not shown) is provided on the optical axis W, and the light collected by the rear lens 46 is received by the light receiving sensor. The camera 42 can have an auto-focus function or a zoom function by a combination of the front lens 44 and the rear lens 46.

The dual axis tilt mechanism 10 adjusts the angle of the mirror 28. That is, the camera 42 may be provided with a gyro sensor, and may have a function of correcting hand movement detected by the gyro sensor by adjusting the angle of the mirror 28.

Fig. 12 shows a two-axis reclining mechanism 10 according to embodiment 2 of the present invention. The magnet 12 is formed in a circular shape (disc shape) in the embodiment 2, while the magnet 12 is formed in a quadrangular shape in the embodiment 1. The magnet 12 is magnetized in the direction P between the X-axis direction and the Y-axis direction, for example, at 45 degrees to the X-axis direction and the Y-axis direction, as in the foregoing embodiment 1. The magnetization may be in the Q direction perpendicular to the P direction, or in the X direction and the Y direction.

Fig. 13 shows a two-axis reclining mechanism 10 according to embodiment 3 of the present invention. In embodiment 3, the coils 14a to 14d are arranged in the X-axis direction or the Y-axis direction with the Y-axis direction or the X-axis direction as the axial direction of the winding, and the two straight portions in the longitudinal direction are located in the Z-axis direction. One linear portion in the longitudinal direction of the coils 14a to 14d faces the side surface of the magnet 12. The yoke 32 is similar to that of embodiment 1, but four protruding portions 36 extending in the-Z direction from the body portion 34 are disposed outside the linear portions of the coils 14a to 14d facing the magnet 12. Therefore, the linear portions of the coils 14a to 14d are sandwiched between the magnet 12 and the protruding portion 36, and the magnetic flux interlinking with the coils 14a to 14d is increased.

In the 3 rd embodiment, the magnet 12 is magnetized in the P direction or the Q direction, as in the 1 st embodiment and the 2 nd embodiment.

Fig. 14 shows a two-axis reclining mechanism 10 according to embodiment 4 of the present invention. In embodiment 4, the magnet 12 is formed by two magnet pieces 12a and 12b stacked in the Z-axis direction. The two magnet pieces 12a and 12b are rectangular and have the same shape and size but opposite magnetization directions. For example, the magnet piece 12a on the + Z-axis direction side is magnetized in the + Q direction, and the magnet piece 12b on the-Z-axis direction side is magnetized in the-Q direction.

The two straight portions of the coils 14a to 14d in the longitudinal direction face the respective magnet pieces 12a and 12b, respectively, and lorentz forces, which are the sum of the interactions of the magnets 12a and 12b, act. That is, both linear portions of the coils 14a to 14d can be used for driving.

In the camera 42 of the present embodiment, the mirror 28 is used as the object to be fixed to the internal holding portion 18, and the base 38 is used as the object to be fixed to the external holding portion 20, but the opposite is also possible. Similarly, although the inner holder 18 is tilted relative to the outer holder 20 as described above, there is no problem with the tilt of the outer holder 20 relative to the inner holder 18.

In the above description, the biaxial tilt mechanism 10 used for the camera 42 has been described, but the present invention is also applicable to other devices. For example, the present invention can be applied to a camera 42 including a lens module that receives light from a subject and passes through a lens by an image pickup device, and a biaxial tilt mechanism 10 that fixes the lens module to the internal holding portion 18 or the external holding portion 20. Such a camera 42 can also perform a shake correction. Further, the present invention can be applied to a camera 42 including a lens for condensing light from an object, an image pickup device for receiving light from the lens, and the biaxial tilt mechanism 10 for fixing the image pickup device to the internal holding portion 18 or the external holding portion 20. Such a camera 42 can also perform a shake correction. Further, the present invention is also applicable to an optical device including an optical element that causes a phenomenon such as reflection, refraction, or projection when light passes through, and the biaxial tilt mechanism 10 that fixes the optical element to the internal holding portion 18 or the external holding portion 20. The present invention is applicable to electronic devices such as mobile phones and smart phones that include the camera 42 and the optical device.

Claims (12)

1. A dual axis tilt mobilization device comprising:

an internal holding portion for holding the inner side of the casing,

an outer holding portion located at a periphery of the inner holding portion,

an intermediate portion coupled to the inner holding portion and the outer holding portion, the intermediate portion being held by the outer holding portion so as to be freely movable in a tilting manner about an X-axis and about a Y-axis perpendicular to the X-axis,

a magnet fixed to the internal holding portion,

a plurality of coils fixed to the external holding portion and arranged at positions facing the magnets;

wherein,

the magnet is magnetized in a direction between the X-axis and the Y-axis.

2. The dual-axis tilt motion device of claim 1, wherein: the coil is disposed such that a current flowing to a portion facing the magnet is in the X-axis direction or the Y-axis direction.

3. The dual-axis tilt motion device of claim 1, wherein: the magnet is formed in a quadrilateral shape having four sides extending in the X-axis direction or the Y-axis direction, and the coil is disposed along each side of the magnet.

4. The dual-axis tilt motion device of claim 1, wherein: a magnetic body is disposed on the side of the coil facing the magnet.

5. The dual-axis tilt motion device of claim 1, wherein: the magnet has a plurality of magnet pieces that are overlapped in a Z-axis direction that perpendicularly intersects the X-axis and the Y-axis, and the magnetization directions of the magnet pieces are opposite.

6. The dual-axis tilt motion device of claim 5, wherein: the coil has an entire surface facing the magnet piece.

7. The dual-axis tilt motion device of claim 1, wherein: the magnet is circular.

8. A camera device is characterized by comprising:

a lens module for receiving light from the subject through the lens to the image pickup element, and

the dual-axis tilt mechanism of claim 1, wherein the lens module is fixed to the inner holder or the outer holder.

9. A camera device is characterized by comprising:

a refractive element for refracting an optical path of a light beam from an object,

an image pickup element receiving the light from the refractive element, an

The biaxial tilt movement device according to claim 1, wherein the refraction element is fixed to the inner holding part or the outer holding part.

10. A camera device is characterized by comprising:

a lens for condensing light from an object,

an image pickup element receiving light from the lens, and

the biaxial tilt movement device according to claim 1, wherein the image pickup element is fixed to the inner holding portion or the outer holding portion.

11. An optical device is provided with:

an optical element for passing light, and

the biaxial tilt movement device according to claim 1, wherein the optical element is fixed to the inner holding part or the outer holding part.

12. An electronic device is provided with:

a camera device as claimed in any one of claims 8 to 10 or an optical device as claimed in claim 11.