Telescopic lens connection structure, lens driving device, photographing device, electronic device

Abstract

The application discloses a telescopic lens connecting structure, a lens driving device, a photographing device and an electronic device, and technical scheme points are as follows: a telescopic lens connecting structure comprises a base, a telescopic shell and a telescopic component; the telescopic shell drives the telescopic component to move along the direction of the lens optical axis; the telescopic shell is provided with a surface flat plate for limiting the telescopic component from separating from the telescopic shell, and the surface flat plate is located at one end of the telescopic shell away from the base; a guide assembly for guiding the telescopic component is arranged between the telescopic shell and the telescopic component; and the telescopic component is provided with a protection structure. The protection structure plays a protection and reinforcement role, improves the connecting strength, and has the advantages of simple structure, easy assembly and cost saving; and the problem that the light quantity of an existing mobile phone over 5 times long-focus periscopic camera is weak and better image quality cannot be obtained is solved.

Description

Technical Field

[0001] This invention relates to the field of photographic equipment, and more particularly to telescopic lens connection structures, lens driving devices, photographic apparatuses, and electronic devices. Background Technology

[0002] A camera module consists of a photosensitive chip and an imaging lens assembly. The imaging lens assembly is placed inside the lens barrel of the module. Only through the organic coordination between the lens barrel position and the photosensitive chip can high-quality images or videos be obtained.

[0003] With the arrival of the 5G era, people have increasingly higher requirements for the quality and clarity of mobile phone photography. Equipping mobile phone cameras with telephoto lenses of 5x or more is an essential feature of high-end smartphones. Due to the height of mobile phones, telephoto lenses of 5x or more generally use periscope focusing drive mechanisms. However, the amount of light entering the periscope method limits the image quality, which is also a problem that mobile phone camera motors urgently need to solve.

[0004] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Summary of the Invention

[0005] The purpose of this invention is to provide a telescopic lens connection structure, a lens driving device, a photographic device, and an electronic device. The protective structure provides protection and reinforcement, improves connection strength, and is simple, easy to assemble, and cost-effective. At the same time, it solves the problem that existing periscope cameras with telephoto lenses of 5x or more in mobile phones have insufficient light intake, which prevents them from obtaining better image quality.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a telescopic lens connection structure, comprising a base, a telescopic outer shell, and a telescopic component.

[0007] The telescopic housing drives the telescopic component to move along the optical axis of the lens. The telescopic housing is provided with a surface plate that restricts the telescopic component from leaving the telescopic housing. The surface plate is located at the end of the telescopic housing away from the base.

[0008] A guide assembly for guiding the telescopic component is provided between the telescopic outer shell and the telescopic component;

[0009] The telescopic component is equipped with a protective structure.

[0010] A further provision of the present invention is that the protective structure includes a telescopic lens barrel disposed on the side wall of the telescopic component and a transparent protective plate disposed on the end of the telescopic component away from the base. The telescopic lens barrel has an outwardly folded edge integrally formed on the end facing the base. The folded edge abuts against the surface plate and restricts the movement of the telescopic component relative to the telescopic outer shell.

[0011] A further configuration of the present invention is as follows: the telescopic outer shell includes an annular upper magnetic yoke, an annular lower magnetic yoke, and a telescopic coil; the annular upper magnetic yoke and the annular lower magnetic yoke together form an annular space, and the telescopic coil is located within the annular space; the annular upper magnetic yoke and the annular lower magnetic yoke are close to each other near the edge of the telescopic component and are located in the middle of the telescopic outer shell; the telescopic component is provided with a plurality of magnets corresponding to the annular upper magnetic yoke and the annular lower magnetic yoke.

[0012] A further feature of the present invention is that the annular upper magnetic yoke and the annular lower magnetic yoke are both toothed and matched near the edges of the telescopic component.

[0013] A further configuration of the present invention is as follows: the telescopic component includes a telescopic frame, a carrier disposed within the telescopic frame and movable relative to the telescopic frame, a drive coil disposed on the carrier and corresponding to a magnet, the magnet being fixed to the side wall of the telescopic frame, and an annular groove provided on the inner wall of the telescopic frame to accommodate the movement of the carrier along the optical axis of the lens.

[0014] A further provision of the present invention is that the end of the annular upper magnetic yoke away from the telescopic component extends and is fixed to the base.

[0015] A further embodiment of the present invention is that the guiding component includes a guide post fixed to the base and arranged vertically, and a guide sleeve disposed on the side wall of the telescopic frame and corresponding to the guide post.

[0016] A further embodiment of the present invention is a lens driving device having the above-described telescopic lens connection structure.

[0017] A further embodiment of the present invention is a photographic apparatus having the above-described lens driving device.

[0018] A further embodiment of the present invention is an electronic device having the above-described photographic apparatus.

[0019] In summary, the present invention has the following beneficial effects:

[0020] The telescopic lens tube, also known as the transparent protective plate, provides protection and reinforcement. In addition, the folded edge, which abuts against the flat surface, effectively limits the telescopic distance of the telescopic components and improves the connection strength.

[0021] When the telescopic coil is energized, the upper and lower annular yokes are magnetized, forming two magnetic poles located on either side of the magnet's direction of movement. These poles exert a force on the magnet, driving it and the telescopic component to move away from the base, thus extending the carrier drive assembly. Similarly, when energized in the opposite direction, the magnetic poles are reversed, driving the telescopic component to retract. When the telescopic coil is de-energized, a magnetization self-locking effect occurs between the magnet and the upper and lower annular yokes, preventing the telescopic component from moving arbitrarily. Furthermore, when the telescopic frame extends, energizing the drive coil causes the carrier to move relative to the telescopic frame, achieving precise focusing. This structure, through a telescopic lens, increases the optical axis distance of the mobile phone camera, solving the problem of insufficient light intake and inability to obtain superior image quality in existing periscope cameras with telephoto lenses of 10x or higher.

[0022] The upper and lower annular magnetic yokes are both toothed and matched on the side edges of the telescopic component, thus forming a gear-like cross near the side wall of the telescopic component, which effectively increases the starting force of the carrier drive assembly.

[0023] The guide posts and guide sleeves effectively guide the telescopic frame, improving its telescopic stability. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of Example 1;

[0025] Figure 2 This is a longitudinal sectional view of Example 1;

[0026] Figure 3 This is a cross-sectional view of Embodiment 1 along the diagonal direction;

[0027] Figure 4 This is an exploded schematic diagram of Example 1;

[0028] Figure 5 This is a schematic diagram of Embodiment 1 with the carrier driving component hidden.

[0029] The numbers in the diagram represent the following components: 1. Base; 2. Telescopic outer shell; 3. Surface plate; 4. Telescopic lens tube; 5. Transparent protective plate; 6. Folded edge; 7. Annular upper magnetic yoke; 8. Annular lower magnetic yoke; 9. Telescopic frame; 10. Carrier; 11. Drive coil; 12. Magnet; 13. Annular groove; 14. Guide post; 15. Guide sleeve; 16. Telescopic coil. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to the figures and specific embodiments.

[0031] Example 1: As Figures 1 to 5 As shown, the present invention proposes a telescopic lens connection structure, comprising a base 1, a telescopic outer shell 2, and a telescopic component, wherein the telescopic outer shell 2 drives the telescopic component to move along the optical axis of the lens.

[0032] The telescopic housing 2 has a surface plate 3 on its end face facing away from the base 1, which restricts the telescopic component from detaching from the telescopic housing 2. The surface plate 3 is located at the end of the telescopic housing 2 facing away from the base 1, and is arranged in a ring shape, with its inner wall protruding beyond the inner sidewall of the telescopic housing 2. The telescopic component is provided with a protective structure, which includes a telescopic lens tube 4 disposed on the sidewall of the telescopic component and a transparent protective plate 5 disposed at the end of the telescopic component facing away from the base 1. The transparent protective plate 5 can be made of glass or the like. The telescopic lens tube 4 has an outwardly folded edge 6 integrally formed at the end facing the base 1. The folded edge 6 can abut against the protrusion of the surface plate 3, and the folded edge 6 abuts against the surface plate 3 and restricts the movement of the telescopic component relative to the telescopic housing 2. The telescopic lens tube 4, i.e., the transparent protective plate 5, provides protection and reinforcement. In addition, the abutment between the folded edge 6 and the surface plate 3 effectively limits the telescopic distance of the component and improves the connection strength.

[0033] The telescopic housing 2 is arranged in a U-shape and includes an annular upper magnetic yoke 7, an annular lower magnetic yoke 8, and a telescopic coil 16. The annular upper magnetic yoke 7 and the annular lower magnetic yoke 8 together form an annular space, and the telescopic coil 16 is located within the annular space. The annular upper magnetic yoke 7 and the annular lower magnetic yoke 8 are close to each other near the edge of the telescopic component and are located in the middle of the telescopic housing 2. The end of the annular upper magnetic yoke 7 away from the telescopic component extends and is fixed to the base 1. The telescopic component includes a telescopic frame 9, a carrier 10 disposed within the telescopic frame 9 and movable relative to the telescopic frame 9, and a drive coil 11 disposed on the carrier 10 and corresponding to the magnet 12. Several magnets 12 are fixed to the side wall of the telescopic frame 9. In this embodiment, four magnets 12 are set and matched with the annular upper magnetic yoke 7 and the annular lower magnetic yoke 8. The inner wall of the telescopic frame 9 is provided with an annular groove 13 to accommodate the movement of the carrier 10 along the optical axis of the lens.

[0034] When the telescopic coil 16 is energized, the upper annular yoke 7 and the lower annular yoke 8 are magnetized, forming two magnetic poles. These two poles are located on either side of the moving direction of the magnet 12 and exert a force on the magnet 12, driving the magnet 12 and the telescopic component to move away from the base 1, thus extending the carrier 10 driving assembly. Similarly, when energized in the opposite direction, the magnetic poles are reversed, driving the telescopic component to retract. When the telescopic coil 16 is de-energized, a magnetization self-locking effect is generated between the magnet 12 and the upper annular yoke 7 and the lower annular yoke 8, thereby preventing the telescopic component from moving arbitrarily. In addition, when the telescopic frame 9 is extended, energizing the driving coil 11 drives the carrier 10 to move relative to the telescopic frame 9, achieving precise focusing. This structure increases the optical axis distance of the mobile phone camera through a telescopic lens, solving the problem that the light intake of existing mobile phone periscope cameras with a telephoto lens of 5x or more is too weak to obtain better image quality.

[0035] The upper annular magnetic yoke 7 and the lower annular magnetic yoke 8 have toothed structures on the side edges near the telescopic component and match each other, so that the upper annular magnetic yoke 7 and the lower annular magnetic yoke 8 form a gear-like cross near the side wall of the telescopic component, which effectively increases the starting force of the carrier 10 drive assembly.

[0036] The guiding assembly includes a guide post 14 fixed to the base 1 and vertically arranged, and a guide sleeve 15 disposed on the side wall of the telescopic frame 9 and corresponding to the guide post 14. Several sets of guiding assemblies are provided, and the guiding assemblies are located at diagonal positions of the base 1. The guide post 14 and the guide sleeve 15 effectively guide the telescopic frame 9, improving the telescopic stability of the telescopic frame 9.

[0037] Example 2: A lens driving device having the telescopic lens connection structure described in Example 1.

[0038] Example 3: A photographic device having the lens driving device described in Example 2.

[0039] Example 4: An electronic product having the photographic device described in Example 3.

[0040] In this document, the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," "outer," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used for the clarity of expressing the technical solution and for the convenience of description, and therefore should not be construed as limiting the present invention.

[0041] In this document, the terms “including,” “comprising,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed, such as the number of guide pillars, the distribution of the ring telescopic frame, and the minimum number of guide pillars.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic lens connection structure, comprising a base (1), a telescopic outer shell (2), and a telescopic component, characterized in that: The telescopic outer shell (2) drives the telescopic component to move along the optical axis of the lens. The telescopic housing (2) is provided with a surface plate (3) that restricts the telescopic component from detaching from the telescopic housing (2). The surface plate (3) is located at the end of the telescopic outer shell (2) away from the base (1); A guide assembly for guiding the telescopic component is provided between the telescopic outer shell (2) and the telescopic component; The telescopic component is equipped with a protective structure; The telescopic outer shell (2) includes a telescopic coil (16), and the telescopic component is provided with a plurality of corresponding magnets (12). A drive coil (11) corresponding to the magnets (12) is provided on the carrier (10). The telescopic outer shell (2) includes an annular upper yoke (7), an annular lower yoke (8), and a telescopic coil (16). The annular upper yoke (7) and the annular lower yoke (8) together form an annular space, and the telescopic coil (16) is located in the annular space. The telescopic component is provided with a plurality of magnets corresponding to the annular upper yoke (7) and the annular lower yoke (8). The magnet (12) corresponding to the yoke (8); when the telescopic coil (16) is energized, the upper annular yoke (7) and the lower annular yoke (8) are magnetized, forming two magnetic poles. The two magnetic poles are located on both sides of the direction of movement of the magnet (12) and exert a force on the magnet (12), driving the magnet (12) and the telescopic component to move away from the base (1). Similarly, when energized in the opposite direction, the magnetic poles are reversed, driving the telescopic component to retract; when the telescopic coil (16) is de-energized, the magnet (12) and the upper annular yoke (7) and the lower annular yoke (8) generate a magnetization self-locking effect; The guide assembly includes a guide post (14) fixed to the base (1) and arranged vertically.

2. The telescopic lens connection structure according to claim 1, characterized in that: The protective structure includes a telescopic lens tube (4) disposed on the side wall of the telescopic component. A transparent protective plate (5) is provided at the end of the telescopic component opposite to the base (1). The telescopic lens tube (4) has an outwardly folded edge (6) integrally formed at the end facing the base (1). The folded edge (6) abuts against the surface plate (3) and restricts the movement of the telescopic component relative to the telescopic shell (2).

3. The telescopic lens connection structure according to claim 2, characterized in that: The annular upper magnetic yoke (7) and the annular lower magnetic yoke (8) are close to each other near the edge of the telescopic component and are located in the middle of the telescopic outer shell (2).

4. The telescopic lens connection structure according to claim 3, characterized in that: The annular upper magnetic yoke (7) and the annular lower magnetic yoke (8) are both toothed and matched near the edge of the telescopic component.

5. The telescopic lens connection structure according to claim 4, characterized in that: The telescopic component includes a telescopic frame (9). A carrier (10) disposed within the telescopic frame (9) and movable relative to the telescopic frame (9). The drive coil (11) is disposed on the carrier (10) and corresponds to the magnet (12). The magnet (12) is fixed to the side wall of the telescopic frame (9). The inner wall of the telescopic frame (9) is provided with an annular groove (13) to accommodate the movement of the carrier (10) along the optical axis of the lens.

6. The telescopic lens connection structure according to claim 5, characterized in that: The end of the annular upper magnetic yoke (7) away from the telescopic component extends and is fixed to the base (1).

7. A lens driving device, characterized in that: It has the telescopic lens connection structure as described in any one of claims 1 to 6.

8. A photographic apparatus, characterized in that: It has the lens driving device as described in claim 7.

9. An electronic device, characterized in that: It has the photographic apparatus as described in claim 8.

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