Zoom lens core adjusting system and zoom lens

Abstract

The invention discloses a zoom lens core adjusting system and a zoom lens, and relates to the technical field of optics, the zoom lens core adjusting system comprises a shell and a core adjusting structure, the shell extends in the transverse direction, the core adjusting structure comprises a core adjusting part and a core adjusting group, the core adjusting group is located in the shell, and the core adjusting part is located in the shell. The core adjusting group is arranged on the shell and movably arranged on the core adjusting part in the transverse direction, the core adjusting part is arranged on the shell and can drive the core adjusting group to move in the longitudinal direction and the up-down direction, and the core adjusting group is used for installing a movable lens. According to the arrangement, in the assembling process, an operator operates the core adjusting part to move so as to drive the core adjusting group to move in the longitudinal direction and the up-down direction, so that the positions of the movable lens in the longitudinal direction and the up-down direction are adjusted, and the coaxiality of a plurality of groups in the lens is adjusted; the coaxiality of the multiple groups meets the optical design requirement in the assembling process.

Description

Technical Field

[0001] The present invention relates to the field of optical technology, and in particular to a zoom lens core adjustment system and a zoom lens. Background Art

[0002] Existing lenses require higher and higher resolution, which leads to higher requirements for the coaxiality of the internal groups in the optical design.

[0003] However, with the limited existing processing capabilities, the coaxiality of the lens internal groups cannot be guaranteed, which often makes it impossible to meet the optical design requirements. Summary of the invention

[0004] The main purpose of the present invention is to provide a zoom lens core adjustment system and a zoom lens, aiming to solve the problem that the coaxiality of the internal group of the lens cannot be guaranteed under the condition of limited existing processing capabilities, which often makes it unable to meet the optical design requirements.

[0005] To achieve the above-mentioned purpose, the zoom lens core adjustment system proposed in the present invention comprises:

[0006] A housing is arranged to extend in a transverse direction; and

[0007] The core-adjusting structure includes a core-adjusting part and a core-adjusting group. The core-adjusting group is located in the shell and is movably arranged on the core-adjusting part in the horizontal direction. The core-adjusting part is arranged on the shell and can drive the core-adjusting group to move in the longitudinal direction and up and down directions. The core-adjusting group is used to install a movable lens.

[0008] In one embodiment, the housing is provided with a first through hole at least at one end thereof in a lateral direction;

[0009] The core-aligning unit comprises:

[0010] A driving guide rod is disposed in the housing and movably connected to the alignment group; and

[0011] The first eccentric wheel is rotatably arranged in the first through hole along an axis extending transversely. The first eccentric wheel is fixedly connected to the driving guide rod and is eccentrically arranged to the driving guide rod to drive the driving guide rod to move longitudinally and vertically.

[0012] In one embodiment, a groove is formed on one end of the first eccentric wheel facing the driving guide rod, and a limiting portion is formed in the groove;

[0013] The driving guide rod is provided with a matching portion corresponding to the limiting portion, and the matching portion can extend into the groove and match with the limiting portion.

[0014] In one embodiment, a rotating portion is further provided at one end of the first eccentric wheel away from the driving guide rod, and the rotating portion is used to drive the first eccentric wheel to rotate along an axis extending laterally.

[0015] In one embodiment, the alignment structure further includes a guide rod, which is extended in a transverse direction and disposed in the shell and is movably connected to the alignment group, and the guide rod is used to guide the lateral movement of the alignment group.

[0016] In one embodiment, the alignment group is provided with an elongated hole in the transverse direction;

[0017] The guide rod is inserted into the long hole and can slide along the extending direction of the long hole.

[0018] In one embodiment, the housing is provided with a second through hole at least at one end thereof in the transverse direction;

[0019] The centering structure also includes a second eccentric wheel, which is arranged in the second through hole and rotates horizontally. The second eccentric wheel is fixedly connected to the guide rod and is eccentrically arranged to the guide rod to drive the guide rod to move longitudinally and up and down.

[0020] In one embodiment, the shell includes an inner shell and an outer shell that are spaced apart, the outer shell is sleeved on the outside of the inner shell, and the inner wall of the outer shell is provided with a plurality of telescopic parts spaced apart along the circumferential direction, the plurality of telescopic parts are used to abut against the inner shell together, and each of the telescopic parts can extend or contract along the radial direction of the outer shell, and the inner shell is provided with the core adjustment part and the core adjustment group.

[0021] In one embodiment, the lens adjustment structure further includes a locking structure, which is disposed on the housing and connected to the core adjustment portion, and is used to lock the core adjustment portion after the core adjustment portion has adjusted the position of the core adjustment group.

[0022] The present invention also provides a zoom lens, comprising the above-mentioned lens core adjustment structure.

[0023] In the technical solution of the present invention, the zoom lens core adjustment system includes a housing and a core adjustment structure, the housing is extended in the horizontal direction, the core adjustment structure includes a core adjustment part and a core adjustment group, the core adjustment group is located in the housing, and is movably arranged in the core adjustment part in the horizontal direction, the core adjustment part is arranged on the housing, and can drive the core adjustment group to move in the longitudinal direction and in the vertical direction, and the core adjustment group is used to install the movable lens. During the assembly process, the operator operates the core adjustment part to move, so as to drive the core adjustment group to move in the longitudinal direction and in the vertical direction, so as to adjust the position of the movable lens in the longitudinal direction and in the vertical direction, so as to adjust the coaxiality of multiple groups inside the lens, and the coaxiality of multiple groups meets the optical design requirements during the assembly process. At the same time, since the core adjustment group is movably arranged in the core adjustment part in the horizontal direction, after the core adjustment is completed, the core adjustment group can move in the horizontal direction to drive the movable lens to move in the horizontal direction, and only the position of the movable lens in the horizontal direction is changed, and the zoom function of the lens is realized under the premise of ensuring the coaxiality of multiple groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 A structural schematic diagram of an embodiment of a zoom lens core adjustment system provided by the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the structure of the middle shell;

[0027] Figure 3 for Figure 1 A schematic diagram of the structure of the first eccentric wheel;

[0028] Figure 4 for Figure 1 A schematic diagram of the structure of the middle driving guide rod;

[0029] Figure 5 for Figure 1 Schematic diagram of the structure of the center adjustment core group.

[0030] Description of Figure Numbers:

[0031] 100. Zoom lens core adjustment system; 1. Shell; 11. First through hole; 2. Core adjustment structure; 21. Core adjustment part; 211. Driving guide rod; 212. First eccentric wheel; 213. Groove; 214. Matching part; 215. Limiting part; 22. Core adjustment group; 221. Long hole; 23. Guide rod.

[0032] 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

[0033] 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.

[0034] 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 in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0035] 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 limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy 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 this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention provides a zoom lens core adjustment system, which aims to solve the problem that the coaxiality of the internal group of the lens cannot be guaranteed under the condition of limited existing processing capacity, which often makes it unable to meet the optical design requirements.

[0037] See also Figure 1-5In one embodiment of the present invention, the zoom lens core adjustment system 100 includes a shell 1 and a core adjustment structure 2, the shell 1 is extended in the horizontal direction, the core adjustment structure 2 includes a core adjustment part 21 and a core adjustment group 22, the core adjustment group 22 is located in the shell 1, and is movably arranged on the core adjustment part 21 in the horizontal direction, the core adjustment part 21 is arranged on the shell 1, and can drive the core adjustment group 22 to move in the longitudinal direction and up and down directions, and the core adjustment group 22 is used to install a movable lens.

[0038] In the technical solution of the present invention, the zoom lens core adjustment system 100 includes a shell 1 and a core adjustment structure 2, the shell 1 is extended in the horizontal direction, the core adjustment structure 2 includes a core adjustment part 21 and a core adjustment group 22, the core adjustment group 22 is located in the shell 1, and is movably arranged on the core adjustment part 21 in the horizontal direction, the core adjustment part 21 is arranged on the shell 1, and can drive the core adjustment group 22 to move in the longitudinal direction and up and down directions, and the core adjustment group 22 is used to install a movable lens. During the assembly process, the operator operates the core-adjusting part 21 to move, so as to drive the core-adjusting group 22 to move in the longitudinal and up-down directions, thereby adjusting the longitudinal and up-down positions of the movable lens, so as to adjust the coaxiality of multiple groups inside the lens. The coaxiality of multiple groups meets the optical design requirements during the assembly process. At the same time, since the core-adjusting group 22 is arranged on the core-adjusting part 21 to move in the transverse direction, after the core-adjusting is completed, the core-adjusting group 22 can move in the transverse direction to drive the movable lens to move in the transverse direction, and only the transverse position of the movable lens is changed. On the premise of ensuring the coaxiality of multiple groups, the zoom function of the lens is realized.

[0039] It can be understood that the core-adjusting part 21 only drives the core-adjusting group 22 to move longitudinally and vertically during the lens assembly process, thereby driving the movable lens to move longitudinally and vertically to adjust the coaxiality of multiple groups. When the adjustment is completed, the core-adjusting part 21 is fixed and no longer moves, thereby preventing the core-adjusting part 21 from moving during the subsequent use of the lens, thereby causing the position of the core-adjusting group 22 to deviate, resulting in the coaxiality of multiple groups not meeting the optical design requirements.

[0040] Specifically, in order to ensure the fixation of the core-adjusting part 21 after the adjustment is completed, in one embodiment of the present invention, the lens adjustment structure further includes a locking structure, which is disposed on the housing 1 and connected to the core-adjusting part 21. The locking structure is used to lock the core-adjusting part 21 after the core-adjusting part 21 has adjusted the position of the core-adjusting group 22. In this way, during the assembly process, the core-adjusting part 21 drives the core-adjusting group 22 to move in the longitudinal direction and in the up-down direction. At this time, the locking structure will not lock the core-adjusting part 21 to ensure the normal operation of the core-adjusting part 21. When the core-adjusting part 21 is adjusted, the locking structure locks the core-adjusting part 21 to limit the movement of the core-adjusting part 21, ensure the fixation of the core-adjusting part 21 after the adjustment is completed, and prevent the core-adjusting part 21 from moving after the adjustment is completed, thereby affecting the coaxiality of multiple groups.

[0041] It can be understood that the present invention does not limit the specific structural form of the locking structure. For example, in one embodiment of the present invention, the locking structure can be set as a fastening bolt, which is threadedly connected to the shell 1 and has one end arranged toward the aligning part 21. In this way, during the assembly process, when the aligning part 21 drives the aligning group 22 to move in the longitudinal direction and the up and down direction, the fastening bolt is arranged away from the aligning part 21 to ensure the normal operation of the aligning part 21. When the aligning part 21 is adjusted, the fastening bolt moves in the direction close to the aligning part 21 until it is pressed against the aligning part 21. Under the effect of thread self-locking, the fastening bolt can always maintain the clamping force on the aligning part 21, so as to limit the movement of the aligning part 21 at all times, ensure the fixity of the aligning part 21 after the adjustment is completed, and avoid the aligning part 21 from moving after the adjustment is completed, thereby affecting the coaxiality of multiple groups.

[0042] Of course, in another embodiment of the present invention, the locking structure can also be set to a bonding structure such as glue. In this embodiment, when the core adjustment part 21 drives the core adjustment group 22 to move longitudinally and up and down, the glue is not applied between the core adjustment part 21 and the shell 1. When the core adjustment part 21 is adjusted, the glue is applied between the core adjustment part 21 and the shell 1 to glue the core adjustment part 21 and the shell 1 to ensure the stability of the connection between the core adjustment part 21 and the shell 1, thereby avoiding the core adjustment part 21 from moving after the adjustment is completed, thereby affecting the coaxiality of multiple groups.

[0043] Of course, in other embodiments of the present invention, the locking structure may also be configured as other structures capable of locking the core aligning portion 21 after the core aligning portion 21 is aligned. In actual configuration, the structure may be selected according to the needs, and the present invention does not impose any limitation on this.

[0044] In addition, the present invention does not limit the specific structural form of the core-adjusting portion 21. In one embodiment of the present invention, the shell 1 is provided with a first through hole 11 at at least one end thereof in the transverse direction. The core-adjusting portion 21 includes a driving guide rod 211 and a first eccentric wheel 212. The driving guide rod 211 is disposed in the shell 1 and is movably connected to the core-adjusting group 22. The first eccentric wheel 212 is rotatably disposed in the first through hole 11 along an axis extending in the transverse direction. The first eccentric wheel 212 is fixedly connected to the driving guide rod 211 and is eccentrically arranged to the driving guide rod 211 to drive the driving guide rod 211 to move in the longitudinal direction and in the up-and-down directions. With such arrangement, when the coaxiality of multiple groups needs to be adjusted, the first eccentric wheel 212 rotates along the axis extending laterally. Since the first eccentric wheel 212 and the driving guide rod 211 are eccentrically arranged, the first eccentric wheel 212 can drive the driving guide rod 211 to move longitudinally and vertically while driving the driving guide rod 211 to rotate along the axis extending laterally. Thus, the driving guide rod 211 drives the core-adjusting group 22 to move longitudinally and vertically to adjust the position of the core-adjusting group 22, thereby adjusting the coaxiality of multiple groups inside the lens. The coaxiality of multiple groups meets the optical design requirements during the assembly process.

[0045] Of course, in another embodiment of the present invention, the driving guide rod 211 can also be rotatably connected to the first eccentric wheel 212 along the axis extending laterally, and is eccentrically arranged with the first eccentric wheel 212. In this way, when the coaxiality of multiple groups needs to be adjusted, the first eccentric wheel 212 rotates along the axis extending laterally. At this time, the first eccentric wheel 212 will not drive the driving guide rod 211 to rotate along the axis extending laterally, but directly drive the driving guide rod 211 to move longitudinally and up and down, so that the driving guide rod 211 drives the core adjustment group 22 to move longitudinally and up and down to adjust the position of the core adjustment group 22, thereby adjusting the coaxiality of multiple groups inside the lens, and the coaxiality of multiple groups meets the optical design requirements during the assembly process.

[0046] In another embodiment of the present invention, the core-adjusting portion 21 can also be configured as other structures that can drive the core-adjusting group 22 to move longitudinally and vertically. For example, in this embodiment, the core-adjusting portion 21 includes a transmission rod and an adjustment group arranged longitudinally and vertically on the transmission rod, each of the adjustment groups includes two elastic adjustment members arranged opposite to each other, and the transmission rod is connected to the core-adjusting group 22. With such a configuration, when it is necessary to adjust the coaxiality of multiple groups, the multiple elastic adjustment members in the two adjustment groups are respectively extended or contracted to drive the transmission rod to move longitudinally and vertically. At this time, the transmission rod can drive the core-adjusting group 22 to move longitudinally and vertically, thereby adjusting the coaxiality of multiple groups.

[0047] Of course, in other embodiments of the present invention, the alignment portion 21 may also be configured as other structures capable of driving the alignment group 22 to move longitudinally and upwardly and downwardly. In actual configuration, the structure may be selected according to the needs, and the present invention does not impose any limitation on this.

[0048] It should be noted that when the driving guide rod 211 and the first eccentric wheel 212 are fixedly connected, the connection stability between the driving guide rod 211 and the first eccentric wheel 212 also needs to be ensured. Therefore, in one embodiment of the present invention, a groove 213 is concavely provided at one end of the first eccentric wheel 212 facing the driving guide rod 211, and a limiting portion 215 is provided in the groove 213. The driving guide rod 211 is provided with a matching portion 214 corresponding to the limiting portion 215, and the matching portion 214 can extend into the groove 213 and cooperate with the limiting portion 215. In this way, the matching portion 214 extends into the groove 213 to cooperate with the limiting portion 215 to fix the relative position of the matching portion 214 and the groove 213, thereby further fixing the relative position of the driving guide rod 211 and the first eccentric wheel 212, so that when the first eccentric wheel 212 rotates along the axis extending laterally, the driving guide rod 211 can rotate with the first eccentric wheel 212.

[0049] Specifically, the present invention does not limit the specific structural forms of the limiting portion 215 and the matching portion 214. In one embodiment of the present invention, the limiting portion 215 can be set as a limiting surface, and the limiting surface and the groove 213 are jointly enclosed to form a D-shaped groove 213. The matching portion 214 can be set as a D-shaped protrusion. In this way, the D-shaped protrusion can extend into the D-shaped groove 213, and cooperate with the D-shaped groove 213, and lock with each other, thereby ensuring that when the first eccentric wheel 212 rotates along the laterally extending axis, the driving guide rod 211 can rotate together with the first eccentric wheel 212.

[0050] In another embodiment of the present invention, the limiting portion 215 can also be set as a clamping piece, and the matching portion 214 can also be set as a clamping block that can be clamped with the clamping piece. In this way, when the clamping block extends into the groove 213, the clamping block can be clamped with the clamping piece, so that the two are locked with each other to ensure that when the first eccentric wheel 212 rotates along the laterally extending axis, the driving guide rod 211 can rotate together with the first eccentric wheel 212.

[0051] Of course, the present invention also does not limit the specific number of the first eccentric wheel 212. In one embodiment of the present invention, only one first eccentric wheel 212 is provided. The first eccentric wheel 212 is fixedly connected to the driving guide rod 211 at one lateral end, and is eccentrically arranged with the driving guide rod 211. The other lateral end of the driving guide rod 211 is rotatably arranged on the shell 1 along an axis extending laterally.

[0052] In another embodiment of the present invention, the shell 1 is provided with the first through holes 11 at both ends in the transverse direction, and two first eccentric wheels 212 are provided. The two first eccentric wheels 212 are respectively arranged at the two ends in the transverse direction of the driving guide rod 211, and are extended in the transverse direction and fixedly connected to the driving guide rod 211. Each of the eccentric wheels is eccentrically arranged with the driving guide rod 211. With such an arrangement, the two eccentric wheels can rotate simultaneously along an axis that can be extended, thereby jointly driving the driving guide rod 211 to rotate along the axis extending in the transverse direction, so as to further ensure the stability of the driving of the driving guide rod 211 by the first eccentric wheel 212, and improve the accuracy of the zoom lens core adjustment system 100 in adjusting the coaxiality of multiple groups.

[0053] Furthermore, in order to ensure the accuracy of the extension angle of the alignment group 22 during the lateral movement, in one embodiment of the present invention, the alignment structure 2 further includes a guide rod 23, which is arranged in the housing 1 and extends in the lateral direction, and is movably connected to the alignment group 22, and is used to guide the lateral movement of the alignment group 22. With such a configuration, when the alignment group 22 moves in the lateral direction, the guide rod 23 can limit the specific movement angle of the alignment group 22, thereby preventing the alignment group 22 from having an angle deviation during the lateral movement, thereby affecting the coaxiality between multiple groups.

[0054] Of course, other structural forms can also be used to guide the lateral movement of the core alignment group 22. For example, in another embodiment of the present invention, the core alignment structure 2 further includes a guide slot, which is arranged in the housing 1 along the lateral direction and is movably connected to the core alignment group 22. The guide slot is used to guide the lateral movement of the core alignment group 22. In this way, the guide slot can also limit the specific movement angle of the core alignment group 22, thereby preventing the core alignment group 22 from having an angle deviation during the lateral movement, thereby affecting the coaxiality between multiple groups.

[0055] It should be noted that, when the alignment unit 21 drives the alignment group 22 to move in the longitudinal direction and in the vertical direction, the position of the alignment group 22 in the longitudinal direction and in the vertical direction will change. In order to indicate that the alignment group 22 and the guide rod 23 interfere with each other, in one embodiment of the present invention, the alignment group 22 is provided with an elongated hole 221 in the transverse direction, and the guide rod 23 is passed through the elongated hole 221 and can slide along the extension direction of the elongated hole 221. In this way, when the position of the alignment group 22 in the longitudinal direction and in the vertical direction changes, the guide rod 23 will slide along the extension direction of the elongated hole 221, thereby adjusting the relative position between itself and the alignment group 22, so as to avoid the mutual interference between the guide rod 23 and the alignment group 22 and affect the adjustment of the position of the alignment group 22.

[0056] Of course, when the core-adjusting part 21 drives the core-adjusting group 22 to move in the longitudinal direction and up and down, in order to further ensure the stability of the movement of the core-adjusting group 22, a second driving source can also be provided to drive the adjustment group to move together with the core-adjusting part 21. In the embodiment of the present invention, the shell 1 is provided with a second through hole at least at one end in the transverse direction, and the core-adjusting structure 2 also includes a second eccentric wheel, which is arranged in the second through hole in a transverse rotation direction, and the second eccentric wheel is fixedly connected to the guide rod 23 and eccentrically arranged with the guide rod 23 to drive the guide rod 23 to move in the longitudinal direction and up and down. In this way, when it is necessary to adjust the coaxiality of multiple groups, the second eccentric wheel can rotate along the axis extending in the transverse direction to drive the guide rod 23 to move in the longitudinal direction and up and down, thereby driving the core-adjusting group 22 to move in the longitudinal direction and up and down together with the core-adjusting part 21, so as to adjust the position of the core-adjusting group 22, thereby adjusting the coaxiality of multiple groups inside the lens, and the coaxiality of multiple groups meets the optical design requirements during the assembly process.

[0057] Of course, the present invention does not limit the specific connection form between the guide rod 23 and the second eccentric wheel. The guide rod 23 and the second eccentric wheel can be rotatably connected or fixedly connected. In actual setting, it can be selected according to needs, and the present invention does not limit this.

[0058] In addition, since the first eccentric wheel 212 is rotatably arranged in the first through hole 11 along the axis extending laterally, in order to ensure that the first eccentric wheel 212 can smoothly rotate along the axis extending laterally during the assembly process, in one embodiment of the present invention, a rotating portion is further provided at one end of the first eccentric wheel 212 away from the driving guide rod 211, and the rotating portion is used to drive the first eccentric wheel 212 to rotate along the axis extending laterally. With such a configuration, when the first eccentric wheel 212 needs to rotate along the axis extending laterally, the operator can hold the rotating portion to drive the first eccentric wheel 212 to rotate along the axis extending laterally through the rotating portion, thereby ensuring the smoothness of the rotation of the first eccentric wheel 212.

[0059] Furthermore, after the assembly is completed, in order to prevent the rotating part from being accidentally touched, thereby causing the angle of the first eccentric wheel 212 to change and affecting the coaxiality of multiple groups, in the present invention, the first eccentric wheel 212 and the rotating part are configured to be detachably connected. When the first eccentric wheel 212 needs to rotate along the laterally extending axis, the rotating part connects the first eccentric wheel 212 to drive the first eccentric wheel 212 to rotate along the laterally extending axis. When the first eccentric wheel 212 completes rotation, the connecting part cancels the connection with the first eccentric wheel 212 to disassemble the rotating part to prevent the rotating part from driving the first eccentric wheel 212 to rotate again after the first eccentric wheel 212 completes rotation. Then, the first eccentric wheel 212 is locked by the locking structure to determine the current rotation angle of the first eccentric wheel 212.

[0060] Of course, the present invention does not limit the specific structural form of the rotating part. In one embodiment of the present invention, the rotating part can be set as a rotating knob, and the rotating knob is connected to one end of the first eccentric wheel 212 away from the driving guide rod 211. The operator operates the rotating knob to rotate along the laterally extending axis, thereby driving the first eccentric wheel 212 to rotate along the laterally extending axis.

[0061] In another embodiment of the present invention, an elongated groove is recessed at one end of the first eccentric wheel 212 away from the driving guide rod 211, and the two opposite ends of the elongated groove are through-set, and the rotating part includes a rotating plate, so that part of the rotating part can extend into the elongated groove and cooperate with the elongated groove to lock each other. The operator can drive the first eccentric wheel 212 to rotate synchronously along the axis extending laterally by operating the elongated groove along the axis extending laterally.

[0062] In another embodiment of the present invention, a rectangular groove may be further recessed at one end of the first eccentric wheel 212 away from the driving guide rod 211, and the rotating portion includes a screwing tool, a portion of which can extend into the rectangular groove and cooperate with the rectangular groove to limit the relative angle between the two. In this way, the operator can drive the first eccentric wheel 212 to rotate along the laterally extending axis by operating the screwing tool together.

[0063] In addition, in order to further ensure the ability of the zoom lens adjustment system to adjust the coaxiality of multiple groups, in one embodiment of the present invention, the housing 1 includes an inner shell and an outer shell arranged at intervals, the outer shell is sleeved on the outer side of the inner shell, and the inner side wall of the outer shell is provided with a plurality of telescopic parts at intervals along the circumferential direction, the plurality of telescopic parts are used to abut the inner shell together, and each of the telescopic parts can extend or contract along the radial direction of the outer shell, and the inner shell is provided with the core adjustment part 21 and the core adjustment group 22. In this way, when the core adjustment part 21 adjusts the core adjustment group 22, the plurality of telescopic parts can further adjust the position of the core adjustment group 22 in the longitudinal direction and in the up-down direction, thereby further improving the adjustment ability of the zoom lens core adjustment system 100.

[0064] The present invention further proposes a zoom lens, which includes a zoom lens core adjustment system 100. The specific structure of the zoom lens refers to the above embodiments. Since the zoom lens adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0065] The above description is only an exemplary 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 technical 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 core adjustment system, characterized in that: include: A housing is arranged to extend in a transverse direction; and The core-adjusting structure includes a core-adjusting part and a core-adjusting group. The core-adjusting group is located in the shell and is movably arranged on the core-adjusting part in the horizontal direction. The core-adjusting part is arranged on the shell and can drive the core-adjusting group to move in the longitudinal direction and up and down directions. The core-adjusting group is used to install a movable lens.

2. The zoom lens core alignment system according to claim 1, characterized in that: A first through hole is formed through at least one end of the shell in the transverse direction; The core-aligning unit comprises: A driving guide rod is disposed in the housing and movably connected to the alignment group; and The first eccentric wheel is rotatably arranged in the first through hole along an axis extending transversely. The first eccentric wheel is fixedly connected to the driving guide rod and is eccentrically arranged to the driving guide rod to drive the driving guide rod to move longitudinally and vertically.

3. The zoom lens core alignment system according to claim 2, wherein: A groove is formed on one end of the first eccentric wheel facing the driving guide rod, and a limiting portion is formed in the groove; The driving guide rod is provided with a matching portion corresponding to the limiting portion, and the matching portion can extend into the groove and match with the limiting portion.

4. The zoom lens core alignment system according to claim 2, wherein: A rotating part is further provided at one end of the first eccentric wheel away from the driving guide rod, and the rotating part is used for driving the first eccentric wheel to rotate along an axis extending laterally.

5. The zoom lens core alignment system according to claim 1, wherein: The alignment structure further comprises a guide rod, which is arranged in the housing and extends in a transverse direction and is movably connected to the alignment group. The guide rod is used to guide the lateral movement of the alignment group.

6. The zoom lens core alignment system according to claim 5, characterized in that: The alignment group is provided with an elongated hole in the transverse direction; The guide rod is inserted into the long hole and can slide along the extending direction of the long hole.

7. The zoom lens core alignment system according to claim 5, characterized in that: A second through hole is formed through at least one end of the shell in the transverse direction; The centering structure also includes a second eccentric wheel, which is arranged in the second through hole and rotates horizontally. The second eccentric wheel is fixedly connected to the guide rod and is eccentrically arranged to the guide rod to drive the guide rod to move longitudinally and up and down.

8. The zoom lens core alignment system according to claim 1, wherein: The shell includes an inner shell and an outer shell that are spaced apart. The outer shell is sleeved on the outer side of the inner shell, and the inner wall of the outer shell is provided with a plurality of telescopic parts spaced apart along the circumferential direction. The plurality of telescopic parts are used to abut against the inner shell together, and each of the telescopic parts can extend or contract along the radial direction of the outer shell. The inner shell is provided with the core adjustment portion and the core adjustment group.

9. The zoom lens core alignment system according to claim 1, wherein: The lens adjustment structure further includes a locking structure, which is disposed on the housing and connected to the core adjustment part. The locking structure is used to lock the core adjustment part after the core adjustment part has adjusted the position of the core adjustment group.

10. A zoom lens, characterized in that: It comprises the zoom lens core adjustment system as described in any one of claims 1 to 9.

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