Focusing structure and camera device thereof

Abstract

The application relates to the field of camera technology, in particular to a focusing structure and a camera device thereof. The focusing structure comprises a lens seat, a ball seat, a sliding assembly, a magnetic guide assembly, a driving coil, a position sensor and a driving magnet. The lens seat is provided with an inner connecting plate. The ball seat is slidably arranged in the lens seat. The ball seat is provided with an outer connecting plate corresponding to the inner connecting plate. The sliding assembly is arranged between the inner connecting plate and the outer connecting plate. The magnetic guide assembly is arranged on the outer connecting plate. The driving coil is arranged on the outer connecting plate. The position sensor is arranged on the outer connecting plate. The driving magnet is arranged on the inner connecting plate. The application has the advantages of compact structure, avoidance of mutual influence of different types of magnets and realization of a small-size focusing structure.

Description

Technical Field

[0001] This invention relates to the field of camera technology, and more particularly to a focusing structure and a camera device thereof. Background Technology

[0002] Chip-driven autofocus, or simply chip-driven for short, uses an actuator to drive the image sensor chip, changing the distance between the lens and the image sensor to achieve autofocus. Compared to lens-driven actuators, chip-driven actuators offer advantages in power consumption, primarily because the components that need to move during autofocus are generally lighter. Additionally, since the lens does not need to move during focusing, it can be positioned closer to the protective glass on top of the lens, resulting in a better aesthetic appearance.

[0003] However, in existing core-driven focusing structures, the actuator, position detection, and sliding components are located on different sides, resulting in a complex structure and a large focusing structure. In addition, the driving magnet in some core-driven actuators is movable, and when other types of magnets are near the actuator, they can easily interfere with the magnets, which may cause serious magnetic interference and affect the normal operation of the actuator. Summary of the Invention

[0004] The purpose of this invention is to provide a focusing structure that enables fast and accurate focusing, is compact, avoids mutual interference between different types of magnets, and achieves a small-volume focusing structure.

[0005] To achieve the above objectives, the present invention provides a focusing structure, comprising:

[0006] Lens mount, the lens mount having an inner plate;

[0007] A ball bearing seat, which is slidable and installed inside the lens mount; the ball bearing seat has an outer plate corresponding to the inner wall;

[0008] A sliding assembly is disposed between the inner plate and the outer plate; the sliding assembly includes three balls forming a triangular surface, the triangular surface having a first baseline; the first baseline connects the centers of the first ball and the second ball; the first ball and the second ball are the two balls that are closest to each other among the three balls;

[0009] A drive coil, which is mounted on the external board;

[0010] A position sensor, which is mounted on the external board;

[0011] A magnetically conductive assembly is mounted on the outer plate; there is a magnetic attraction between the magnetically conductive assembly and the driving magnet, and the intersection of the magnetic attraction and the triangular face has a magnetic attraction point; the magnetic attraction point satisfies: d≤D×45%; where d is the minimum distance from the magnetic attraction point to the first baseline, and D is the minimum distance from the first baseline to the center of the third ball.

[0012] A driving magnet is mounted on the inner plate.

[0013] Preferably, the inner plate is provided with a first bead groove, a second bead groove, and a third bead groove, the first bead groove and the second bead groove being spaced apart along the optical axis; the outer plate is provided with a first sliding groove and a second sliding groove along the optical axis, the first sliding groove being correspondingly arranged with the first bead groove and the second bead groove, and the second sliding groove being correspondingly arranged with the third bead groove; the ball includes a first ball, a second ball, and a third ball; the first ball is installed between the first bead groove and the first sliding groove; the second ball is installed between the second bead groove and the first sliding groove; and the third ball is installed between the third bead groove and the second sliding groove.

[0014] Preferably, the centers of the first ball, the second ball, and the third ball are connected to form a triangular surface, and the first baseline connects the centers of the first ball and the second ball, respectively.

[0015] Preferably, the horizontal cross-sections of the first bead groove, the second bead groove, the third bead groove, and the first slide groove are V-shaped; the horizontal cross-section of the second slide groove is U-shaped.

[0016] Preferably, the first slide groove is provided with a first clearance groove, and the second slide groove is provided with a second clearance groove; the lens mount is provided with a fourth ball groove corresponding to the first clearance groove and a fifth ball groove corresponding to the second clearance groove; the sliding assembly further includes a fourth ball and a fifth ball, the fourth ball being installed between the fourth ball groove and the first clearance groove, and the fifth ball being installed between the fifth ball groove and the second clearance groove.

[0017] Preferably, the top surface of the ball bearing seat is provided with a dustproof ring, and the lens mount is provided with a dustproof groove corresponding to the dustproof ring, and the dustproof ring is inserted into the dustproof groove.

[0018] A camera device, characterized in that it comprises:

[0019] The focusing structure as described in any of the above;

[0020] The housing, wherein the focusing structure is installed inside the housing;

[0021] A circuit board having a movable part, a fixed part, and a deformable part, wherein the deformable part is connected to the movable part and the fixed part respectively, the movable part is connected to the ball bearing seat, and the fixed part is connected to the lens mount;

[0022] An image sensor, the image sensor being mounted on the movable part;

[0023] A lens, which is mounted on the lens mount.

[0024] Preferably, the deformable portion is arc-shaped, the deformable portion is disposed along the inner wall of the housing, and the deformable portion is located above the movable portion.

[0025] Preferably, the image sensor has a first base surface, and the deformed portion has a second base surface, satisfying:

[0026] E > 10% H;

[0027] Where E is the minimum distance between the first base plane and the second base plane, and H is the lens height.

[0028] Preferably, the magnetically conductive component comprises a conductive material and is electrically connected to the drive coil and the position sensor.

[0029] Implementing the embodiments of the present invention has the following technical effects:

[0030] The focusing structure of this invention features a ball bearing seat and a lens mount. A driving magnet is mounted on the immovable lens mount, thus the driving magnet is stationary and does not cause interference. Furthermore, the driving coil, position sensor, and sliding assembly are all located on an external plate corresponding to the driving magnet. Therefore, only one driving magnet is needed to satisfy position detection and drive the ball bearing seat, reducing the size of the focusing structure. Additionally, since the magnetic attraction point satisfies d ≤ D × 45%, the positive force between each ball bearing, ball bearing seat, and lens mount is relatively uniform, preventing excessive wear of any single ball bearing that could lead to severe tilting or displacement. Finally, the autofocus structure of this invention supports a ball bearing design, eliminating the need to waste current overcoming spring force when fixing the lens, thus achieving energy savings. Attached Figure Description

[0031] The invention will now be described in more detail with the aid of the accompanying drawings. The technical features shown in the drawings and / or described below are generally characteristic of the invention and modify it accordingly, without relying on any specific combination of technical features.

[0032] It should be noted that in different figures, the same reference numerals denote the same or substantially the same components.

[0033] Figure 1This is a schematic diagram of the focusing structure of preferred embodiment 1 of the present invention;

[0034] Figure 2 This is a cross-sectional view of the first bead groove in the preferred embodiment 1 of the present invention;

[0035] Figure 3 This is a cross-sectional view of the third bead groove in the preferred embodiment 1 of the present invention;

[0036] Figure 4 This is a projection diagram of the magnetic conductive component of the preferred embodiment 1 of the present invention;

[0037] Figure 5 This is an exploded view of the preferred embodiment 1 of the present invention;

[0038] Figure 6 This is a schematic diagram of the lens mount structure of preferred embodiment 1 of the present invention;

[0039] Figure 7 This is an exploded view of the focusing structure of the preferred embodiment 2 of the present invention;

[0040] Figure 8 This is a schematic diagram of the ball bearing seat in preferred embodiment 2 of the present invention;

[0041] Figure 9 This is a schematic diagram of the camera device according to the preferred embodiment 3 of the present invention;

[0042] Figure 10 This is an exploded view of the camera device according to the preferred embodiment 3 of the present invention;

[0043] Figure 11 This is a schematic diagram of the circuit board structure of a preferred embodiment 3 of the present invention.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100. Focusing structure;

[0046] 1. Lens mount; 1b. First bead groove; 1c. Second bead groove; 1d. Third bead groove;

[0047] 2. Ball bearing seat; 2b. First slide groove; 2c. Second slide groove; 2d. First clearance groove; 2e. Second clearance groove;

[0048] 3. Sliding component; 3a. First ball bearing; 3b. Second ball bearing; 3c. Third ball bearing; 3d. Fourth ball bearing; 3e. Fifth ball bearing;

[0049] 4. Magnetic conductive components; 4a. Magnetic attraction point;

[0050] 5. Drive coil; 6. Position sensor; 7. Drive magnet;

[0051] 8. Triangular face; 8a. First baseline;

[0052] 9. Shell; 9a. Upper shell; 9b. Lower shell;

[0053] 10. Circuit board; 10a. Movable part; 10b. Immovable part; 10c. Deformable part; 10d. Second base surface;

[0054] 11. Image sensor; 11a. First base plane;

[0055] 12. Lens; 13. Sensor carrier; 14. Filter. Detailed Implementation

[0056] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0057] The definitions of front, back, inside, outside, top, and bottom are merely for the convenience of describing the positional or connection relationships between the components of the focusing structure in the embodiments of this application, and do not limit the embodiments of this application.

[0058] It should also be noted that for the same components in the embodiments of this application, the reference numerals may only be used to mark one of the components in the figure. It should be understood that the reference numerals also apply to other identical components.

[0059] At the same time, the term "including" does not exclude other elements or steps, and "a" or "an" does not exclude the plural.

[0060] Furthermore, it should be noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the accompanying drawings, can still be combined among these technical features (or their equivalents) to obtain other embodiments of this application not directly mentioned herein.

[0061] Furthermore, it should be understood that while the terms "first," "second," etc., are used herein to describe various types of information, this information should not be limited to these terms, which are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0062] Example 1:

[0063] See Figure 1 and Figure 5As shown, a preferred embodiment of the present invention provides a focusing structure 100, including a lens mount 1, a ball bearing seat 2, a sliding assembly 3, a magnetically conductive assembly 4, a drive coil 5, a position sensor 6, and a drive magnet 7. The lens mount 1 has an inner plate; the ball bearing seat 2 is slidably mounted inside the lens mount 1; the ball bearing seat 2 has an outer plate corresponding to the inner plate; the sliding assembly 3 is disposed between the inner plate and the outer plate; the magnetically conductive assembly 4 is mounted on the outer plate; the drive coil 5 is mounted on the outer plate; the position sensor 6 is mounted on the outer plate; and the drive magnet 7 is mounted on the inner plate.

[0064] Specifically, by reading the output signal of position sensor 6, the one-axis displacement of the movable structure in position sensor 6 and the core-driven ball-bearing autofocus voice coil motor relative to the drive magnet 7 can be calculated. Based on this displacement and by changing the current in drive coil 5, closed-loop control can be achieved, resulting in faster focusing speeds and avoiding resonance issues that affect image sharpness. Drive magnet 7 uses single-sided bipolar magnetization; the upper surface of drive magnet 7 facing drive coil 5 is the north pole, and the lower surface is the south pole. Therefore, the direction of the electromagnetic force in drive coil 5 is approximately parallel to the optical axis.

[0065] See Figure 6 As shown, in some preferred embodiments of the present invention, the inner plate is provided with a first bead groove 1b, a second bead groove 1c, and a third bead groove 1d, the first bead groove 1b and the second bead groove 1c being spaced apart along the optical axis; the outer plate is provided with a first sliding groove 2b and a second sliding groove 2c along the optical axis, the first sliding groove 2b being correspondingly arranged with the first bead groove 1b and the second bead groove 1c, and the second sliding groove 2c being correspondingly arranged with the third bead groove 1d; the sliding component 3 includes a first ball 3a, a second ball 3b, and a third ball 3c; the first ball 3a is installed between the first bead groove 1b and the first sliding groove 2b; the second ball 3b is installed between the second bead groove 1c and the first sliding groove 2b; and the third ball 3c is installed between the third bead groove 1d and the second sliding groove 2c.

[0066] See Figure 4 As shown, in some preferred embodiments of the present invention, the center of the first ball 3a, the center of the second ball 3b, and the center of the third ball 3c are connected to form a triangular surface 8. The triangular surface 8 has a first baseline 8a, which connects the centers of the first ball 3a and the second ball 3b respectively. The magnetic component 4 has a magnetic attraction point 4a. The first ball 3a and the second ball 3b are the two balls in the sliding component 3 that are closest to each other.

[0067] Preferably, the position of the magnetic attraction point 4a satisfies:

[0068] d≤D×45%;

[0069] Where d is the minimum distance from the magnetic attraction point 4a to the first baseline 8a, and D is the minimum distance from the first baseline 8a to the center of the third ball 3c.

[0070] After prolonged autofocusing, the wear of the third ball bearing 3c, the third ball groove 1d, and the second sliding groove 2c will be greater than that of the other balls and grooves, causing serious optical axis tilting and misalignment. In ball bearing structures, the normal force and wear are often nearly proportional. See also Figure 2 and Figure 3 As shown, since d is relatively small in this invention, the positive force of the first ball 3a and the second ball 3b can be increased to be close to the positive force of the third ball 3c. Therefore, the wear of all ball grooves and balls is relatively uniform, which can effectively reduce the problem of optical axis tilt and offset.

[0071] See Figure 2 and Figure 3 As shown, in some preferred embodiments of the present invention, the horizontal cross-sections of the first bead groove 1b, the second bead groove 1c, the third bead groove 1d, and the first sliding groove 2b are V-shaped; the horizontal cross-section of the second sliding groove 2c is U-shaped. Thus, the first bead groove 1b, the second bead groove 1c, the third bead groove 1d, and the first sliding groove 2b adopt a V-shaped design, with each groove and two sides of a ball tightly connected; the second sliding groove 2c adopts a U-shaped design, and is tightly connected to the third ball 3c on only one side. Because the first ball 3a and the second ball 3b are tightly connected to the four V-shaped grooves, the movement of the ball bearing seat 2 relative to the lens mount 1 in the Rx, Ry, x, and y directions can be effectively restricted; because the third ball 3c is tightly connected to the U-shaped second sliding groove 2c and the V-shaped third bead groove 1d, the movement of the ball bearing seat 2 relative to the lens mount 1 in the y-direction can only be effectively restricted; therefore, the movement of the ball bearing seat 2 relative to the lens mount 1 in the Rx, Ry, Rz, x, and y directions can be effectively restricted, providing only the z-direction degree of freedom. The z-direction is approximately parallel to the lens optical axis. The purpose of using a U-shape is to avoid the ball groove restricting the movement of the ball seat 2 in the x-direction, as this would lead to multiple repetitive positioning. If there is a component error in the ball groove, the contact surface between the ball groove and the ball becomes uncontrollable, and the lens tilt problem will have more variables under different autofocus strokes.

[0072] In some preferred embodiments of the present invention, a dustproof ring is provided on the top surface of the ball bearing seat 2, and a dustproof groove corresponding to the dustproof ring is provided on the lens mount 1, with the dustproof ring inserted into the dustproof groove. The dustproof ring can reduce the risk of dust contaminating the area below the lens mount and improve the structural reliability of the present invention.

[0073] In some preferred embodiments of the present invention, the magnetic conductive component 4 contains conductive material and is electrically connected to the drive coil 5 and the position sensor 6, which can effectively improve production efficiency and reduce costs.

[0074] Example 2:

[0075] See Figure 7 and Figure 8As shown, based on Embodiment 1, Embodiment 2 has a first clearance groove 2d in the first slide groove 2b and a second clearance groove 2e in the second slide groove 2c; the lens mount 1 has a fourth ball groove corresponding to the first clearance groove 2d and a fifth ball groove corresponding to the second clearance groove 2e; the sliding assembly 3 also includes a fourth ball 3d and a fifth ball 3e, the fourth ball 3d being installed between the fourth ball groove and the first clearance groove 2d, and the fifth ball 3e being installed between the fifth ball groove and the second clearance groove 2e.

[0076] Example 3:

[0077] See Figure 9 and Figure 10 As shown, based on Embodiment 1 or 2, Embodiment 3 provides a camera device, including a housing 9, a circuit board 10, an image sensor 11, and a lens 12. A focusing structure 100 is installed inside the housing 9. The circuit board 10 has a movable part 10a, a fixed part 10b, and a deformable part 10c. The deformable part 10c is connected to the movable part 10a and the fixed part 10b respectively. The movable part 10a is connected to the ball bearing seat 2, and the fixed part 10b is connected to the lens mount 1. The image sensor 11 is installed on the movable part 10a. The lens 12 is installed on the lens mount 1.

[0078] Furthermore, the camera device also includes a sensor carrier 13 and a filter 14, with the sensor carrier 13 mounted on the movable part 10a; the filter 14 mounted on the sensor carrier 13; and the image sensor 11 mounted on the sensor carrier 13.

[0079] In some preferred embodiments of the present invention, the deformable portion 10c is in the shape of an arc strip, the deformable portion 10c is disposed along the inner wall of the housing 9, and the deformable portion 10c is located above the movable portion.

[0080] See Figure 11 As shown, in some preferred embodiments of the present invention, the image sensor 11 has a first base surface 11a, and the deformed portion 10c has a second base surface 10d, satisfying:

[0081] E > 10% H;

[0082] Where E is the minimum distance between the first base plane 11a and the second base plane 10d, and H is the minimum distance from the lens to the first base plane 11a.

[0083] Thus, when the lens looks upwards, the reference plane is above the image sensor 11. Since the morphing section can utilize the space next to the lens without occupying the space next to the image sensor 11, it can make more efficient use of the limited space in the camera module, which is beneficial for miniaturization. From a top view, the lens area is usually much smaller than the total area of ​​the image sensor 11 and the surrounding capacitors, so the space next to the lens is usually larger. The morphing section's utilization of space can effectively reduce the module's length and width (x and y dimensions).

[0084] In addition, the deformable part in this invention does not need to be folded, nor does it need to occupy the space below the image sensor 11 and outside the camera module, so products using this invention can reduce the sacrifice of valuable space.

[0085] Furthermore, the camera device of the preferred embodiment of the present invention has a simple and compact structure, is easy to assemble, and is conducive to mass production and even automated production, thus having advantages in cost, weight, size, and power consumption. The circuit board 10 in the present invention can be composed of a traditional flexible circuit board 10 with a reinforcing plate, or a rigid-flex board, without the need for expensive and complex circuit board 10 manufacturing processes, thus reducing manufacturing costs.

[0086] Furthermore, since the lens does not need to move during autofocus, this invention improves the appearance of camera products, supports heavier lenses, reduces power consumption, and speeds up autofocus. Because all magnets in this invention are in a stationary structure, external magnets have minimal impact on the voice coil motor, effectively reducing magnetic interference.

[0087] Furthermore, the deformable portion of the circuit board 10 can be composed of at least one piece of elastic material on one or more planes; the deformable portion of the circuit board 10 can also be composed of multiple filamentary elastic materials; the autofocus control chip can be located in the stationary structure of the present invention or externally; other types of actuators, such as spring-loaded voice coil motors, memory metal motors, and piezoelectric motors, can be used instead of ball-loaded voice coil motors; other types of position sensors 6 can be used, including optical or capacitive types; a drive chip including the position sensor 6 can be used; other numbers of balls, ball grooves, drive magnets 7, drive coils 5, and housings 9 can be designed, which are also within the scope of protection of the present invention.

[0088] Furthermore, the housing 9 and lens mount 1 contain magnetically conductive material, which can reduce the impact of external magnets on the voice coil motor and reduce magnetic interference. Additionally, using magnetically conductive material facilitates magnet assembly, improving assembly efficiency and accuracy. Finally, using magnetically conductive material can strengthen the magnetic field flowing through the coil, reducing the power consumption of the voice coil motor.

[0089] Furthermore, the housing 9 includes an upper housing 9a and a lower housing 9b.

[0090] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A focusing structure, characterized by, The utility model relates to a lens holder, which comprises: a lens holder (1) having an inner plate provided with a first ball groove (1b), a second ball groove (1c) and a third ball groove (1d); a ball seat (2) being slidable and installed inside the lens holder (1), the ball seat (2) having an outer plate corresponding to the inner plate, the outer plate being provided with a first sliding groove (2b) and a second sliding groove (2c) along an optical axis; a sliding assembly (3) arranged between the inner plate and the outer plate, the sliding assembly comprising three balls, the three balls being a first ball, a second ball and a third ball, the three balls forming a triangular surface (8) having a first base line (8a), the first base line (8a) connecting the centers of the first ball (3a) and the second ball (3b), the first ball (3a) and the second ball (3b) being the two balls closest to each other among the three balls; a driving coil (5) installed on the outer plate; a driving magnet (7) installed on the inner plate; a magnetic guide assembly (4) installed on the outer plate, the magnetic guide assembly and the driving magnet (7) having a magnetic attraction force, the intersection between the magnetic attraction force and the triangular surface (8) having a magnetic attraction point (4a), the magnetic attraction point (4a) satisfying d ≤ D×45%, wherein d is the minimum distance from the magnetic attraction point (4a) to the first base line (8a), and D is the minimum distance from the first base line (8a) to the center of the third ball (3c); a position sensor (6) installed on the outer plate; the first sliding groove (2b) is provided with a first emptying groove (2d), and the second sliding groove (2c) is provided with a second emptying groove (2e), the lens holder (1) is provided with a fourth ball groove corresponding to the first emptying groove (2d) and a fifth ball groove corresponding to the second emptying groove (2e), the sliding assembly (3) further comprises a fourth ball (3d) and a fifth ball (3e), the fourth ball (3d) being installed between the fourth ball groove and the first emptying groove (2d), and the fifth ball (3e) being installed between the fifth ball groove and the second emptying groove (2e); the horizontal section of the first ball groove (1b), the second ball groove (1c), the third ball groove (1d) and the first sliding groove (2b) is in a V-shaped structure, and the horizontal section of the second sliding groove (2c) is in a U-shaped structure.

2. The focusing structure of claim 1, wherein, The first ball groove (1b) and the second ball groove (1c) are arranged along the optical axis; the first sliding groove (2b) is arranged corresponding to the first ball groove (1b) and the second ball groove (1c), and the second sliding groove (2c) is arranged corresponding to the third ball groove (1d); the first ball (3a) is installed between the first ball groove (1b) and the first sliding groove (2b); the second ball (3b) is installed between the second ball groove (1c) and the first sliding groove (2b); and the third ball (3c) is installed between the third ball groove (1d) and the second sliding groove (2c).

3. The focusing structure of claim 2, wherein, The center of the first ball (3a), the center of the second ball (3b) and the center of the third ball (3c) are connected to form a triangular surface (8), and the first base line (8a) connects the center of the first ball (3a) and the center of the second ball (3b) respectively.

4. The focusing structure of claim 1, wherein, The top surface of the ball seat (2) is provided with a dustproof ring, and the lens seat (1) is provided with a dustproof groove corresponding to the dustproof ring, and the dustproof ring is inserted into the dustproof groove.

5. An image pickup device, characterized by comprising: Comprise: The focusing structure according to any one of claims 1-4; A housing (9), wherein the focusing structure is installed inside the housing (9); A circuit board (10) having a movable part (10a), an immovable part (10b) and a deformation part (10c), wherein the deformation part (10c) is connected to the movable part (10a) and the immovable part (10b) respectively, the movable part (10a) is connected to the ball seat (2), and the immovable part (10b) is connected to the lens seat (1); An image sensor (11) installed on the movable part; A lens (12) installed on the lens seat (1).

6. The camera of claim 5, wherein, The deformation part (10c) is in the shape of an arc strip, the deformation part (10c) is arranged along the inner wall of the housing (9), and the deformation part (10c) is located above the movable part (10a).

7. The camera of claim 6, wherein, The image sensor (11) has a first base surface (11a), the deformation part (10c) has a second base surface (10d), and the following conditions are met: E>10% H; Wherein, E is the minimum distance between the first base surface (11a) and the second base surface (10d), and H is the height of the lens.

8. The camera of claim 5, wherein, The magnetically conductive component (4) is provided with an electrically conductive material, and the magnetically conductive component (4) is electrically connected to the driving coil (5) and the position sensor (6).

Images