Zoom lens and mobile terminal

Abstract

The present invention discloses a zoom lens and a mobile terminal, wherein the zoom lens comprises a lens barrel and a focus moving group, the lens barrel is extended along a first direction, and the lens barrel has a cavity; the focus moving group is movably arranged in the cavity along the first direction, and comprises a focus moving carrier and an elastic kit, the focus moving group comprises a first carrier and a second carrier which are connected to each other and relatively movable in the first direction, in the first direction, the first carrier and the second carrier are respectively provided with a first mounting hole and a second mounting hole for lens installation, and the two ends of the elastic kit are respectively correspondingly arranged at the outer side of the first mounting hole and the outer side of the second mounting hole, in the present invention, an elastic kit is arranged between the first carrier and the second carrier, and during the zooming process, the elastic kit enables the first carrier and the second carrier to move relatively, thereby increasing the optical performance of the zoom lens on the basis of satisfying the stacking height.

Description

Technical Field

[0001] The present invention relates to the technical field of photographic equipment, and in particular to a zoom lens and a mobile terminal. Background Art

[0002] Currently, all mobile phones sold on the market are equipped with multiple optical camera modules. The optical system of traditional mobile phone camera modules is designed to be fixed-focus. Later, zoom modules with movable lens groups were developed. However, the lenses of the focus group inside the existing mobile phone lenses are relatively fixed, and the optical performance will be limited by the stacking height. Summary of the invention

[0003] The main purpose of the present invention is to provide a zoom lens and a mobile terminal, aiming to solve the technical problem in the prior art that the lenses of the focus group are relatively fixed and the optical performance is limited by the stacking height.

[0004] To achieve the above object, the present invention provides a zoom lens, comprising:

[0005] A lens barrel is extended along a first direction, and has a cavity; and

[0006] A focus moving group is movably arranged in the cavity along the first direction, and includes a focus moving carrier and an elastic kit. The focus moving group includes a first carrier and a second carrier which are connected to each other and relatively movable in the first direction. In the first direction, the first carrier and the second carrier are correspondingly provided with a first mounting hole and a second mounting hole for mounting a lens, and two ends of the elastic kit are respectively correspondingly arranged on the outer side of the first mounting hole and the outer side of the second mounting hole.

[0007] Optionally, the focus moving group further includes a first mounting portion and a second mounting portion which are arranged opposite to each other, the first mounting portion is arranged around the periphery of the first mounting hole, and the second mounting portion is arranged around the periphery of the second mounting hole;

[0008] Wherein, two ends of the elastic kit are correspondingly mounted on the first mounting portion and the second mounting portion respectively.

[0009] Optionally, at least one of the periphery of the first mounting hole and the periphery of the second mounting hole is provided with an annular groove;

[0010] Correspondingly, at least one of the first mounting portion and the second mounting portion includes the annular groove;

[0011] One end of the elastic sleeve is installed in the annular groove.

[0012] Optionally, the elastic kit is configured as a spring.

[0013] Optionally, the focus moving group also includes a limit plate, which includes a mounting end and a limit end that are relatively arranged, the mounting end is arranged on the first carrier, and the limit end is arranged corresponding to the side of the second carrier away from the first carrier to limit the movable travel of the second carrier on the side away from the first carrier.

[0014] Optionally, the focus moving group further includes a first guide component and / or a second guide component, the first guide component is arranged between the first carrier and the lens barrel, and the second guide component is arranged between the first carrier and the second carrier.

[0015] Optionally, the first guide assembly and / or the second guide assembly includes a guide structure, the guide structure includes a guide hole and a guide shaft that slide together, one of the guide hole and the guide shaft is arranged on the first carrier or the second carrier, and correspondingly, the other is arranged on the lens barrel or the first carrier.

[0016] Optionally, the focus moving group also includes a limit plate, which includes a mounting end and a limit end that are relatively arranged. In the second guide assembly, the mounting end of the limit plate is arranged on the first carrier, and the limit end of the limit plate is arranged on the extension end of the guide shaft.

[0017] Optionally, the zoom lens further includes a focus driving assembly for driving the first carrier.

[0018] The present invention further provides a mobile terminal, the mobile terminal comprising a zoom lens, the zoom lens comprising:

[0019] A lens barrel is extended along a first direction, and has a cavity; and

[0020] A focus moving group is movably arranged in the cavity along the first direction, and includes a focus moving carrier and an elastic kit. The focus moving group includes a first carrier and a second carrier which are connected to each other and relatively movable in the first direction. In the first direction, the first carrier and the second carrier are correspondingly provided with a first mounting hole and a second mounting hole for mounting a lens, and two ends of the elastic kit are respectively correspondingly arranged on the outer side of the first mounting hole and the outer side of the second mounting hole.

[0021] In the technical solution of the present invention, an elastic kit is arranged between a first carrier and a second carrier of a focus moving group. In an initial state, the focus moving group and the zoom moving group arranged in the cavity are both in a compressed state, and the zoom moving group presses the focus moving group to be tightly attached to the lens barrel. At this time, the first carrier and the second carrier are tightly attached to each other, and the elastic kit is in a compressed state. During the zooming process, the zoom moving group moves in the cavity. At this time, the focus moving group loses the suppression of the zoom moving group, and the elastic kit is reset to provide a driving force for the first carrier and the second carrier to be relatively close or away. That is, in the initial state and the working state, the first carrier has different positions, so that the structure in the zoom lens has a larger design space. Moreover, the setting of the elastic kit increases the focusable range of the zoom lens while ensuring that the lens volume remains unchanged, thereby both meeting the stacking height and increasing the optical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 is a schematic structural diagram of an embodiment of a zoom lens of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the cross section of AA (compressed state);

[0025] Figure 3 for Figure 1 Schematic cross-sectional view of AA (working state).

[0026] Description of the accompanying drawings of the embodiments provided by the present invention:

[0027]

[0028]

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Currently, all mobile phones sold on the market are equipped with multiple optical camera modules. The optical system of traditional mobile phone camera modules is designed to be fixed-focus. Later, zoom modules with movable lens groups were developed. However, the lenses of the focus group inside the existing mobile phone lenses are relatively fixed, and the optical performance will be limited by the stacking height.

[0034] In view of this, the present invention provides a zoom lens and a mobile terminal. Figures 1 to 3 This is an embodiment of the zoom lens provided by the present invention.

[0035] See also Figures 1 to 3The zoom lens 100 includes a lens barrel 1 and a focus moving group 2. The lens barrel 1 is extended along a first direction F1 and has a cavity. The focus moving group 2 is movably arranged in the cavity along the first direction F1, and includes a focus moving carrier 21 and an elastic kit 22. The focus moving group 2 includes a first carrier 211 and a second carrier 212 that are connected to each other and relatively movable in the first direction F1. In the first direction F1, the first carrier 211 and the second carrier 212 are correspondingly provided with a first mounting hole 2111 and a second mounting hole 2121 for lens installation. The two ends of the elastic kit 22 are respectively correspondingly arranged at the outer side of the first mounting hole 2111 and the outer side of the second mounting hole 2121.

[0036] In the technical solution of the present invention, the elastic kit 22 is arranged between the first carrier 211 and the second carrier 212 of the focus moving group 2. In the initial state, the focus moving group 2 and the zoom moving group 4 arranged in the cavity are both in a compressed state, and the zoom moving group 4 presses the focus moving group 2 to be in close contact with the lens barrel 1. At this time, the first carrier 211 and the second carrier 212 are in close contact with each other, and the elastic kit 22 is in a compressed state. During the zooming process, the zoom moving group 4 moves in the cavity. At this time, the focus moving group 2 loses its elasticity. The suppression of the zoom moving group 4 is removed, and the elastic kit 22 is reset, providing a driving force for the first carrier 211 and the second carrier 212 to move relatively closer or farther away, that is, in the initial state and the working state, the first carrier 211 and the second carrier 212 have different positions, so that the structure in the zoom lens 100 has a larger design space, and the setting of the elastic kit 22 ensures that the volume of the zoom lens 100 remains unchanged while increasing the focus range of the zoom lens 100, thereby meeting the stacking height and increasing the optical performance.

[0037] It should be noted that, in the present invention, the length direction of the lens barrel 1 is the first direction F1, and the radial direction of the lens barrel 1 is the second direction F2.

[0038] Further reading Figure 3 The focus moving group 2 also includes a first mounting portion and a second mounting portion that are relatively arranged, the first mounting portion is arranged around the periphery of the first mounting hole 2111, and the second mounting portion is arranged around the periphery of the second mounting hole 2121; wherein, the two ends of the elastic kit 22 are respectively installed on the first mounting portion and the second mounting portion, so that the installation of the elastic kit 22 is more stable.

[0039] The present invention does not limit the specific forms of the first mounting part and the second mounting part. The first magnetic structure and the second magnetic structure are respectively arranged on the periphery of the first mounting hole 2111 and the periphery of the second mounting hole 2121, and the two ends of the elastic kit 22 are respectively adsorbed and positioned with the first magnetic structure and the second magnetic structure; wherein, the first mounting part includes the first magnetic structure, and the second mounting part includes the second magnetic structure; in this embodiment, at least one of the periphery of the first mounting hole 2111 and the periphery of the second mounting hole 2121 is provided with an annular groove; correspondingly, at least one of the first mounting part and the second mounting part includes the annular groove; one end of the elastic kit 22 is installed in the annular groove, and the elastic kit 22 is installed in the annular groove, so that the installation of the elastic kit 22 is more stable.

[0040] Specifically, the present invention does not limit the number of the annular grooves, and one annular groove can be provided, and one of the annular grooves is provided on one of the periphery of the first mounting hole 2111 and the periphery of the second mounting hole 2121, and the corresponding other one can be provided with a rubber layer, one end of the elastic kit 22 is installed in the annular groove, and the other end is adhered to the rubber layer. More specifically, in this embodiment, the periphery of the first mounting hole 2111 and the periphery of the second mounting hole 2121 are respectively provided with a first annular groove 23 and a second annular groove 24 with grooves arranged opposite to each other; wherein, the first mounting portion includes the first annular groove 23, and the second mounting portion includes the second annular groove 24; the two ends of the elastic kit 22 are respectively installed in the first annular groove 23 and the second annular groove 24, so that not only the installation of the elastic kit 22 is made more stable, but also the volume of the zoom lens 100 will not change due to the provision of the elastic kit 22.

[0041] The present invention does not limit the specific form of the elastic kit 22, which may be a silicone sleeve or a bellows. In the present embodiment, the elastic kit 22 is configured as a spring, which has good telescopic properties. Moreover, since the spring is wound by a coil, the spring has sufficient strength to support and drive the second carrier 212 to move.

[0042] In order to ensure that the movement of the second carrier 212 does not affect the optical performance of the zoom lens 100, the focus moving group 2 further includes a limit plate 25 (see Figure 1), the limiting plate 25 includes a mounting end and a limiting end that are relatively arranged, the mounting end is arranged on the first carrier 211, and the limiting end is arranged corresponding to the side of the second carrier 212 away from the first carrier 211, so as to limit the movable stroke of the second carrier 212 on the side away from the first carrier 211, so that the second carrier 212 can move within a certain range, which can not only increase the focus range of the zoom lens 100 and improve the optical performance, but also avoid affecting the optical performance of the zoom lens 100 due to excessive movable stroke.

[0043] In the present invention, the focus moving group 2 further includes a first guide component 26, which is disposed between the first carrier 211 and the lens barrel 1, so that the movement of the first carrier 211 is more stable and standardized, thereby improving the optical performance of the zoom lens 100.

[0044] In the present invention, the focus moving group 2 also includes a second guide component 27, and the second guide component 27 is arranged between the first carrier 211 and the second carrier 212, so that the movement of the second carrier 212 relative to the first carrier 211 is more stable, thereby improving the optical performance of the zoom lens 100 while ensuring the stability of the zoom lens 100.

[0045] It should be noted that the above two technical features, the first guide component 26 and the second guide component 27, can be set selectively or simultaneously. In the present embodiment, the focus moving group 2 further includes a first guide component 26 and a second guide component 27. The first guide component 26 is arranged between the first carrier 211 and the lens barrel 1, and the second guide component 27 is arranged between the first carrier 211 and the second carrier 212. In this way, the activities of the first carrier 211 and the second carrier 212 are made more stable and standardized, thereby improving the optical performance of the zoom lens 100 while ensuring the stability of the zoom lens 100.

[0046] Specifically, in the present invention, the first guide assembly 26 includes a guide structure, and the guide structure includes a guide hole and a guide shaft that slide together. One of the guide hole and the guide shaft is provided on the first carrier 211, and the other is provided on the lens barrel 1. Through the sliding cooperation between the guide shaft and the guide hole, not only can the movement of the first carrier 211 be smoother, but also the structure is simplified and the installation space is saved.

[0047] Specifically, in the present invention, the second guide assembly 27 includes a guide structure, which includes a guide hole and a guide shaft that slide together. One of the guide hole and the guide shaft is provided on the first carrier 211, and the other is provided on the second carrier 212. Through the sliding cooperation between the guide shaft and the guide hole, not only can the movement of the second carrier 212 be smoother, but also the structure is simplified and the installation space is saved.

[0048] It should be noted that the above two technical features, the first guide component 26 includes a guide structure and the second guide component 27 includes a guide structure, can be set selectively or simultaneously. More specifically, in the present embodiment, the first guide component 26 includes a first guide structure, the first guide structure includes a first guide hole and a first guide shaft that are slidably matched with each other, one of the first guide hole and the first guide shaft is provided on the first carrier 211, and the other is correspondingly provided on the lens barrel 1; the second guide component 27 includes a second guide structure, the second guide structure includes a second guide hole and a second guide shaft that are slidably matched with each other, one of the second guide hole and the second guide shaft is provided on the first carrier 211, and the other is correspondingly provided on the second carrier 212. This not only makes the movement of the first carrier 211 and the second carrier 212 smoother, but also simplifies the structure and saves installation space.

[0049] More specifically, the first guide hole is provided on the first carrier 211, the first guide shaft is provided on the lens barrel 1, and the first guide shaft is extended along the first direction F1, so that the first guide hole and the first guide shaft are slidably matched in the first direction F1; the second guide hole is provided on the second carrier 212, the second guide shaft is provided on the first carrier 211, and the second guide shaft is extended along the first direction F1, so that the second guide hole and the second guide shaft are slidably matched in the first direction F1.

[0050] In the present application, in order to further simplify the structure and save installation space, the focus moving group 2 also includes a limit plate 25, and the limit plate 25 includes a mounting end and a limit end that are relatively arranged. In the second guide assembly 27, the mounting end of the limit plate 25 is arranged on the first carrier 211, and the limit end of the limit plate 25 is arranged on the extension end of the guide shaft. It should be noted that the guide shaft refers to the above-mentioned second guide shaft. Two connecting plates 28 are arranged at intervals on the end surface of the first carrier 211 facing the second carrier 212. The two connecting plates 28 are arranged on both sides of the second guide shaft along the circumference of the first carrier 211. Each of the connecting plates 28 extends toward the side close to the first carrier 211 to abut against the limit end to support the limit plate 25.

[0051] It should be noted that the present application does not limit the number of the second guide components 27 . In the present embodiment, two second guide components 27 are relatively arranged in the second direction F2 , and two corresponding limit plates 25 are also arranged.

[0052] The zoom lens 100 also includes a focus driving component 3 for driving the first carrier 211. It should be noted that the focus driving component 3 includes a voice coil motor arranged between the first carrier 211 and the lens barrel 1, and the coil of the voice coil motor is arranged on the first carrier 211. The magnet of the voice coil motor is arranged on the lens barrel 1, and the magnet extends along the first direction F1 to drive the first carrier 211 to move along the first direction F1.

[0053] In addition, to achieve the above purpose, the present invention further proposes a mobile terminal, which can be a mobile phone or an iPad, and is not limited here. The mobile terminal includes the zoom lens 100 described in the above technical solution. It should be noted that the detailed structure of the zoom lens 100 of the mobile terminal can refer to the above embodiment of the zoom lens 100, which will not be repeated here; since the above zoom lens 100 is used in the mobile terminal of the present invention, the embodiment of the mobile terminal of the present invention includes all technical solutions of all embodiments of the above zoom lens 100, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0054] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A zoom lens, characterized in that: include: The lens barrel is extended along the first direction and has a cavity; as well as, a focus movable group, movably disposed in the cavity along the first direction, comprising a focus movable carrier and an elastic kit, the focus movable group comprising a first carrier and a second carrier connected to each other and movable relative to each other in the first direction, wherein in the first direction, the first carrier and the second carrier are respectively provided with a first mounting hole and a second mounting hole for mounting a lens, and two ends of the elastic kit are respectively disposed on the outer sides of the first mounting hole and the outer sides of the second mounting hole; The focus moving group further includes a first mounting portion and a second mounting portion arranged opposite to each other, the first mounting portion being arranged around the periphery of the first mounting hole, and the second mounting portion being arranged around the periphery of the second mounting hole; Wherein, the two ends of the elastic kit are respectively installed on the first installation part and the second installation part; The zoom lens also includes a zoom moving group, which is movably arranged in the cavity along the first direction; in an initial state, the focus moving group and the zoom moving group arranged in the cavity are both in a compressed state, and the zoom moving group presses the focus moving group tightly against the lens barrel. At this time, the first carrier and the second carrier are tightly pressed against each other, and the elastic kit is in a compressed state. During the zooming process, the zoom moving group moves in the cavity. At this time, the focus moving group loses the suppression of the zoom moving group, and the elastic kit is reset, providing a driving force for the first carrier and the second carrier to move closer or farther away from each other.

2. The zoom lens according to claim 1, wherein: At least one of the periphery of the first mounting hole and the periphery of the second mounting hole is provided with an annular groove; Correspondingly, at least one of the first mounting portion and the second mounting portion includes the annular groove; One end of the elastic sleeve is installed in the annular groove.

3. The zoom lens according to claim 1, wherein: The elastic kit is configured as a spring.

4. The zoom lens according to claim 1, wherein: The focus moving group also includes a limit plate, which includes a mounting end and a limit end that are relatively arranged. The mounting end is arranged on the first carrier, and the limit end is arranged corresponding to the side of the second carrier away from the first carrier to limit the movable stroke of the second carrier on the side away from the first carrier.

5. The zoom lens according to claim 1, wherein: The focus moving group further includes a first guide component and / or a second guide component, wherein the first guide component is arranged between the first carrier and the lens barrel, and the second guide component is arranged between the first carrier and the second carrier.

6. The zoom lens according to claim 5, wherein: The first guide assembly and / or the second guide assembly includes a guide structure, which includes a guide hole and a guide shaft that slide together. One of the guide hole and the guide shaft is provided on the first carrier or the second carrier, and the other is correspondingly provided on the lens barrel or the first carrier.

7. The zoom lens according to claim 6, wherein: The focus moving group also includes a limit plate, which includes a mounting end and a limit end that are relatively arranged. In the second guide assembly, the mounting end of the limit plate is arranged on the first carrier, and the limit end of the limit plate is arranged on the extension end of the guide shaft.

8. The zoom lens according to claim 1, wherein: The zoom lens further includes a focus driving assembly for driving the first carrier.

9. A mobile terminal, characterized in that: The mobile terminal comprises the zoom lens according to any one of claims 1 to 8.

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