Lens structure and camera

Abstract

The application is suitable for the technical field of optical structure, and provides a lens structure and a camera. The lens structure comprises: a fixed part comprising a lens barrel and a stop piece, the stop piece being arranged on the end face of the first end of the lens barrel; a adjusting ring rotatably sleeved on the outer periphery of the fixed part, the stop piece being used for blocking the adjusting ring from moving away from the lens barrel on the side of the stop piece, the lens barrel having a stop surface used for blocking the adjusting ring from moving away from the stop piece on the side of the lens barrel; and an adjusting piece penetrating the stop piece and having a force applying end capable of applying a pressing force to the adjusting ring and capable of moving along the axial direction of the lens barrel to push the adjusting ring to move along the axial direction of the lens barrel. In the case that the adjusting ring not only rotates on the lens barrel around the circumferential direction of the lens barrel but also reciprocatingly shakes on the lens barrel along the axial direction of the lens barrel, the user can eliminate the movement gap of the adjusting ring on the lens barrel by pushing the adjusting ring to move away from the stop piece through the adjusting piece, so that the adjusting ring can only rotate around the circumferential direction of the lens barrel and cannot move on the lens barrel.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of optical structures, and more particularly to a lens structure and a camera. BACKGROUND

[0002] The camera comprises a lens structure, a body structure, a sensor system, a viewfinder, a shutter system, an image processing system, a power supply assembly and an external device interface, wherein the lens structure is mounted on the body structure, and the lens structure comprises a lens barrel, a ring, a stop ring, an aperture and a lens group, wherein a part of the ring is rotatably sleeved on the outer periphery of the lens barrel and coaxial with the lens barrel, the stop ring is mounted on the end face of the lens barrel away from the body structure and coaxial with the lens barrel, another part of the ring is rotatably sleeved on the outer periphery of the stop ring, and the stop ring is used to block the movement of the ring away from the body structure, the lens barrel has a stop surface for blocking the movement of the ring towards the body structure, the aperture is arranged in the lens barrel and coaxial with the lens barrel, and the lens group is arranged in the lens barrel and coaxial with the lens barrel and located on the side of the aperture away from the body structure to block the opening on the lens barrel.

[0003] With the rotation of the ring on the lens barrel, the ring will not only rotate on the lens barrel in the circumferential direction of the lens barrel, but also reciprocate on the lens barrel in the axial direction of the lens barrel, influenced by factors such as manufacturing tolerance, friction between the ring and the stop ring, friction between the ring and the stop surface, gravity and temperature, in which case the ring will not rotate smoothly on the lens barrel, and even may appear phenomena such as jamming or shaking, and forcibly rotating the ring will affect the performance and service life of the lens structure. SUMMARY

[0004] The purpose of the embodiment of the application is to provide a lens structure and a camera, aiming to solve the technical problem that in the prior art, after the ring rotates on the lens barrel for a period of time, the ring will shake in the axial direction of the lens barrel.

[0005] To achieve the above-mentioned purpose, according to one aspect of the application, a lens structure is provided, which comprises: a fixed part, the fixed part comprising a lens barrel and a stop piece, the stop piece being arranged on the end face of the first end of the lens barrel; a ring, rotatably sleeved on the outer periphery of the fixed part, the stop piece being used to block the movement of the ring away from the stop piece and towards the lens barrel, the lens barrel having a stop surface for blocking the movement of the ring towards the lens barrel and away from the stop piece; and an adjusting piece, penetrating the stop piece and having a force applying end capable of applying a pressing force to the ring and capable of reciprocating in the axial direction of the lens barrel to push the ring to move in the axial direction of the lens barrel.

[0006] Optionally, the lens structure further comprises a balance ring, the balance ring is sleeved on the outer periphery of the stopper and is located between the force applying end of the adjusting member and the adjusting ring, the force applying end is capable of abutting against an end face of the balance ring close to the stopper to apply the pressing force to the balance ring, and the balance ring is used for applying the pressing force applied to the balance ring to the adjusting ring.

[0007] Optionally, the end face of the balance ring close to the stopper is provided with a first accommodating groove in the circumferential direction of the adjusting ring, the first accommodating groove has a groove opening arranged towards the lens barrel; the lens structure comprises a first rolling member, the first rolling member is arranged in the first accommodating groove and is capable of rolling in the first accommodating groove in the circumferential direction of the adjusting ring, the end face of the balance ring close to the adjusting ring abuts against the surface of the first rolling member, and the outer peripheral surface of the stopper abuts against the surface of the first rolling member.

[0008] Optionally, the groove wall of the first accommodating groove away from the lens barrel is a first inclined wall, the first inclined wall is gradually inclined towards the lens barrel from one end of the adjusting ring close to the stopper to the other end away from the stopper.

[0009] Optionally, the first rolling member comprises at least two first rolling balls, and the connecting direction of the ball centers of the first rolling balls is parallel to the circumferential direction of the adjusting ring.

[0010] Optionally, the end face of the stopper away from the adjusting ring is provided with a first through hole extending to the end face of the stopper close to the adjusting ring for the first rolling ball to pass through, the end face of the balance ring away from the adjusting ring is provided with a second through hole extending to the end face of the balance ring close to the adjusting ring for the first rolling ball to pass through, the first through hole corresponds to and communicates with the second through hole, and the lens structure further comprises a plugging member, the plugging member is detachably arranged in the first through hole and the second through hole.

[0011] Optionally, the adjusting member is an adjusting screw, the stopper is provided with a threaded through hole in the axial direction of the adjusting ring, and the adjusting screw is arranged in the threaded through hole and is threadedly matched with the threaded through hole.

[0012] Optionally, the end face of the adjusting ring away from the stopper is provided with a second accommodating groove in the circumferential direction of the adjusting ring, the second accommodating groove has a groove opening arranged towards the lens barrel; the lens structure further comprises a second rolling member, the second rolling member is arranged in the second accommodating groove and is capable of rolling in the second accommodating groove in the circumferential direction of the adjusting ring, the stopper abuts against the surface of the second rolling member, and the outer peripheral surface of the lens barrel abuts against the surface of the second rolling member.

[0013] Optionally, the groove wall of the second accommodating groove away from the lens barrel is a second inclined wall, the second inclined wall is gradually inclined towards the lens barrel from one end of the adjusting ring away from the stopper to the other end away from the stopper; or, the second rolling member comprises at least two second rolling balls, and the connecting direction of the ball centers of the second rolling balls is parallel to the circumferential direction of the adjusting ring; or, the stopper and the lens barrel are detachably connected.

[0014] According to another aspect of the present application, a camera is provided, which includes the above-mentioned lens structure.

[0015] The beneficial effect of the lens structure provided by the present application is that, compared with the prior art, when the user needs to adjust the focal length or other parameters of the lens structure, the user can achieve the adjustment by rotating the adjustment ring. As the adjustment ring rotates on the lens barrel, under the influence of manufacturing tolerances, friction and other factors, the adjustment ring will not only rotate on the lens barrel around the circumference of the lens barrel, but also rock back and forth on the lens barrel along the axial direction of the lens barrel. In this case, the user can push the adjustment ring away from the stopper by the adjustment member to eliminate the movement gap of the adjustment ring on the lens barrel, so that the adjustment ring can only rotate around the circumference of the lens barrel but cannot move on the lens barrel. After adjusting the adjustment member, the user can judge whether the rotation of the adjustment ring is smooth by rotating the adjustment ring. If it still feels not smooth, the adjustment ring can be adjusted again by continuing to push the adjustment ring towards or away from the stopper by the adjustment member until the user feels that the rotation of the adjustment ring on the lens barrel becomes smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic diagram of the lens structure provided in an embodiment of the present application;

[0018] Figure 2 A schematic front view of the lens structure provided in an embodiment of the present application;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0020] Figure 4 A schematic cross-sectional view of the lens structure provided in an embodiment of the present application at one viewing angle;

[0021] Figure 5 for Figure 4 A magnified schematic diagram of point B in the middle;

[0022] Figure 6 A partial cross-sectional schematic diagram of the cooperation among the adjusting member, the stop ring and the balancing ring in another embodiment provided in the present application;

[0023] Figure 7 A schematic cross-sectional view of the lens structure provided in an embodiment of the present application at another viewing angle;

[0024] Figure 8 is Figure 7 enlarged view at C;

[0025] Figure 9 is a top view of a lens structure provided by an embodiment of the present application.

[0026] The label details involved in the above-mentioned drawings are as follows:

[0027] 100, lens barrel; 110, lens barrel body; 120, stop body; 121, stop surface; 200, stop piece; 210, stop body; 220, stop ring; 300, adjusting ring; 310, first accommodating groove; 320, second accommodating groove; 410, adjusting screw; 420, adjusting pin; 430, limiting column; 440, fixing sleeve; 450, return spring; 500, balance ring; 600, first ball; 700, second ball; 800, plugging piece; 900, mounting screw. DETAILED DESCRIPTION

[0028] In order to make the technical problems to be solved by the present application, the technical solutions and beneficial effects clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0029] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0030] It should be understood that the terms “length”, “width”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" etc. can explicitly or implicitly comprise one or more of such features. In the description of the present application, the meaning of "a plurality of" is two or more, unless explicitly specified otherwise.

[0032] As described in the background, at present, the camera includes a lens structure, a body structure, a sensor system, a viewfinder, a shutter system, an image processing system, a power component and an external device interface, wherein the lens structure is mounted on the body structure, the lens structure includes a lens barrel, a ring, a stop ring, an aperture and a lens group, wherein a part of the ring is rotatably sleeved on the outer periphery of the lens barrel coaxially with the lens barrel, the stop ring is mounted on the end face of the lens barrel away from the body structure coaxially with the lens barrel, another part of the ring is rotatably sleeved on the outer periphery of the stop ring, the stop ring is used to block the movement of the ring away from the body structure, the lens barrel has a stop surface for blocking the movement of the ring towards the body structure, the aperture is arranged in the lens barrel coaxially with the lens barrel, and the lens group is arranged in the lens barrel coaxially with the lens barrel and located on the side of the aperture away from the body structure to block the opening of the lens barrel. With the rotation of the ring on the lens barrel, affected by factors such as manufacturing tolerance, friction between the ring and the stop ring, friction between the ring and the stop surface, gravity and temperature, the ring will not only rotate on the lens barrel in the circumferential direction of the lens barrel, but also reciprocate on the lens barrel in the axial direction of the lens barrel, in which case the ring will not rotate smoothly on the lens barrel, and even may appear to be stuck or jitter, and forcibly rotating the ring will affect the performance and service life of the lens structure.

[0033] Reference Figures 1 to 4 In order to solve the above problems, according to one aspect of the present application, the embodiments of the present application provide a lens structure, which comprises a fixed part, a ring and an adjusting piece, wherein the fixed part comprises a lens barrel and a stop piece, the stop piece is arranged on the end face of the first end of the lens barrel; the ring is rotatably sleeved on the outer periphery of the fixed part, the stop piece is used to block the movement of the ring away from the stop piece and towards the lens barrel, and the lens barrel has a stop surface for blocking the movement of the ring towards the lens barrel and away from the stop piece; the adjusting piece is arranged on the stop piece and has a force applying end capable of applying a pressing force to the ring and capable of reciprocating in the axial direction of the lens barrel to push the ring to move in the axial direction of the lens barrel.

[0034] In the embodiment of the present application, the lens barrel 100 is also called a lens barrel, the front end of the lens barrel 100 has a screw port for arranging a lens hood, the rear end of the lens barrel 100 has a screw port (or a bayonet port) for being arranged into a camera, the lens barrel 100 comprises a lens barrel body 110 and a stop body 120, the stop body 120 is fixedly arranged on the side of the lens barrel body 110 away from the stop piece 200 and coaxial with the lens barrel body 110, the outer diameter of the stop body 120 is greater than the outer diameter of the lens barrel body 110, the end face of the stop body 120 close to the lens barrel body 110 can block the movement of the adjusting ring 300 towards the side of the lens barrel 100 away from the stop piece 200, and the end face of the stop body 120 close to the lens barrel body 110 is formed as a stop face 121; the stop piece 200 is arranged on the end face of the lens barrel body 110 away from the stop body 120 and coaxial with the lens barrel body 110, the stop piece 200 is a stop ring in the shape of a flange plate, the diameter of the end face of the stop ring close to the lens barrel 100 is smaller than the diameter of the end face of the stop ring away from the lens barrel 100; the adjusting ring 300 is a focusing ring, the focusing ring is a ring sleeve, and the specific structure of the focusing ring belongs to the common knowledge of those skilled in the art, which will not be described in detail here. Of course, in other embodiments, the adjusting ring 300 can also be a zoom ring, the zoom ring is a ring sleeve, and the specific structure of the zoom ring belongs to the common knowledge of those skilled in the art, which will not be described in detail here. Part of the adjusting ring 300 is rotatably sleeved on the outer periphery of the lens barrel body 110, and the other part of the adjusting ring 300 is rotatably sleeved on the outer periphery of the stop ring. The end face of the adjusting ring 300 close to the stop piece 200 is located between the end face of the stop piece 200 close to the adjusting ring 300 and the end face of the stop piece 200 away from the adjusting ring 300. The diameter of the end face of the stop ring away from the lens barrel 100 is greater than the outer diameter of the lens barrel 100, so as to block the movement of the adjusting ring 300 towards the side of the stop piece 200 away from the lens barrel 100. Of course, in other embodiments, the adjusting ring 300 can be entirely rotatably sleeved on the outer periphery of the lens barrel body 110. Of course, in other embodiments, the stop ring can also be a stop bar or a stop arc bar, and the stop bar or the stop arc bar has an outer protrusion on the side of the lens barrel 100 close to the adjusting ring 300, which can be used to block the movement of the adjusting ring 300 towards the side of the stop piece 200 away from the lens barrel 100; the adjusting member adopts an adjusting screw 410, the stop piece 200 is provided with a threaded through hole for the adjusting screw 410 to pass through in the axial direction of the adjusting ring 300, the adjusting screw 410 can pass through the threaded through hole in a threaded fitting manner, and the screw head of the adjusting screw 410 can apply a pressing force towards the adjusting ring 300. The screw head of the adjusting screw 410 is formed as the force applying end of the adjusting member. Of course, in other embodiments, the adjusting member can also adopt an adjusting pin 420 or an adjusting column which reciprocally moves in the axial direction of the adjusting ring 300. Of course, the adjusting member can also push the adjusting ring 300 to move in the axial direction of the lens barrel 100 along other directions.

[0035] When the user needs to adjust the focal length or other parameters of the lens structure, the user can adjust by rotating the adjusting ring 300. With the rotation of the adjusting ring 300 on the lens barrel 100, under the influence of manufacturing tolerances, friction and other factors, the adjusting ring 300 will not only rotate on the lens barrel 100 in the circumferential direction of the lens barrel 100, but also reciprocate on the lens barrel 100 in the axial direction of the lens barrel 100. In this case, the user can eliminate the movement gap of the adjusting ring 300 on the lens barrel 100 by adjusting the adjusting member to push the adjusting ring 300 to move away from the stop member 200, so that the adjusting ring 300 can only rotate around the circumferential direction of the lens barrel 100, and cannot move on the lens barrel 100. After adjusting the adjusting member, the user can rotate the adjusting ring 300 to determine whether the rotation of the adjusting ring 300 is smooth. If it is still not smooth, the user can continue to adjust the adjusting ring 300 by adjusting the adjusting member to push the adjusting ring 300 to move away from or close to the stop member 200, until the user feels that the rotation of the adjusting ring 300 on the lens barrel 100 becomes smooth.

[0036] With reference to Figures 2 to 5 The lens structure in the embodiment further includes a balance ring 500, which is sleeved on the outer periphery of the stop member 200 and located between the force applying end of the adjusting member and the adjusting ring 300. The force applying end can abut against the end face of the balance ring 500 close to the stop member 200, so as to apply the pressing force to the balance ring 500. The balance ring 500 is used to apply the pressing force applied to the balance ring 500 to the adjusting ring 300.

[0037] In the embodiment of the present application, the stopper 200 comprises a stopper body 210 and a stopper ring 220, the stopper body 210 is mounted on the end face of the first end of the lens barrel 100, the stopper ring 220 is fixedly sleeved on the outer periphery of the stopper body 210, the thickness of the stopper ring 220 is less than the thickness of the stopper body 210, the end face of the stopper ring 220 away from the end face of the lens barrel 100 is flush with the end face of the stopper body 210 away from the end face of the lens barrel 100, the stopper body 210 and the stopper ring 220 are integrally formed, and the outer diameter of the stopper ring 220 is greater than the outer diameter of the lens barrel 100; the balance ring 500 is sleeved on the outer periphery of the stopper body 210 and located between the end face of the stop ring 220 close to the adjusting ring 300 and the end face of the adjusting ring 300 close to the stopper 200, the force applying end of the adjusting member abuts against the end face of the balance ring 500 close to the stopper ring 220, and the end face of the balance ring 500 close to the adjusting ring 300 can abut against the end face of the adjusting ring 300 close to the stopper 200 or abut against other components provided on the end face of the adjusting ring 300 close to the stopper 200, so that the pressing force of the force applying end of the adjusting member applied to the balance ring 500 is transmitted to the adjusting ring 300, thereby pushing the adjusting ring 300 to move along the axial direction of the lens barrel 100, and further eliminating the movement gap of the adjusting ring 300 on the lens barrel 100; the balance ring 500 is arranged to facilitate the balance ring 500 to apply the pressing force of the force applying end of the adjusting member to the adjusting ring 300, and further facilitate the elimination of the movement gap of the adjusting ring 300 on the lens barrel 100.

[0038] With reference to Figure 4 and Figure 5 , as an optional mode in the embodiment of the present application, the end face of the adjusting ring 300 close to the stopper 200 is provided with a first accommodating groove 310 along the circumferential direction of the adjusting ring 300, and the first accommodating groove 310 has a groove opening facing the lens barrel 100; the lens structure comprises a first rolling member, the first rolling member is arranged in the first accommodating groove 310 and can roll in the first accommodating groove 310 along the circumferential direction of the adjusting ring 300, the end face of the balance ring 500 close to the adjusting ring 300 abuts against the surface of the first rolling member, and the outer peripheral surface of the stopper 200 abuts against the surface of the first rolling member.

[0039] In the optional mode, the first accommodating groove 310 is an annular groove, and of course in other embodiments, the first accommodating groove 310 can also be an arc-shaped groove; the pressing force of the force applying end of the adjusting member applied to the balance ring 500 is applied to the adjusting ring 300 through the first rolling member, and under the action of the pressing force, the first rolling member pushes the adjusting ring 300 to move along the axial direction of the lens barrel 100, thereby eliminating the movement gap of the adjusting ring 300 on the lens barrel 100, and at the same time, the first rolling member arranged reduces the friction between the adjusting ring 300 and the stopper 200, reduces the noise generated by the friction, reduces the wear, and prolongs the service life of the adjusting ring 300 and the stopper 200.

[0040] With reference to Figure 5 , as an optional mode in the embodiments of the present application, the groove wall of the first accommodating groove 310 away from the lens barrel 100 is a first inclined wall, which gradually inclines towards the lens barrel 100 from one end of the first adjusting ring 300 close to the stopper 200 to the other end away from the stopper 200.

[0041] In the optional mode, the included angle between the extension direction of the first inclined wall and the axial direction of the lens barrel 100 is 45°, of course, in other embodiments, the included angle between the extension direction of the first inclined wall and the axial direction of the lens barrel 100 can also be 30°, 60° or other degrees. The first inclined wall thus designed facilitates the decomposition of the pressing force of the first rolling member on the balance ring 500 into an axial thrust arranged in the axial direction of the adjusting ring 300 and a radial thrust arranged in the radial direction of the adjusting ring 300, under the action of the axial thrust, the adjusting ring 300 will move on the lens barrel 100 in the axial direction of the lens barrel 100, thereby eliminating the movement gap of the adjusting ring 300 on the lens barrel 100, under the action of the radial thrust, the axis of the adjusting ring 300 will be centered with the axis of the lens barrel 100, thereby facilitating the smoother rotation of the adjusting ring 300 on the lens barrel 100.

[0042] With reference to Figure 2 , Figure 3 and Figure 5 , as an optional mode in the embodiments of the present application, the first rolling member comprises at least two first rolling balls 600, and the connecting direction of the ball centers of the first rolling balls 600 is parallel to the circumferential direction of the adjusting ring 300.

[0043] The plurality of first rolling balls 600 arranged facilitates to weaken the friction between the adjusting ring 300 and the stopper 200, reduce the noise generated by friction, reduce wear and tear, and prolong the service life of the adjusting ring 300 and the stopper 200. Of course, in other embodiments, the first rolling member can also comprise a first mounting ring frame arranged in the circumferential direction of the adjusting ring 300, the first mounting ring frame is mounted in the first accommodating groove 310, and each first rolling ball 600 is rollingly embedded in the first mounting ring frame, and the surface of the first mounting ring frame is provided with an outer leakage hole for the first rolling ball 600 to protrude outward.

[0044] With reference to Figure 1 , Figure 4 and Figure 5As an optional mode in the embodiment, the end face of the stopper 200 away from the adjusting ring 300 is provided with a first through hole extending to the end face of the stopper 200 close to the adjusting ring 300, for the first ball 600 to pass through, the end face of the balance ring 500 away from the adjusting ring 300 is provided with a second through hole extending to the end face of the balance ring 500 close to the adjusting ring 300, for the first ball 600 to pass through, the first through hole corresponds to the second through hole and is in communication, and the lens structure further comprises a plugging member 800, which is detachably arranged in the first through hole and the second through hole.

[0045] In the optional mode, the first through hole is arranged on the stop ring 220 along the axial direction of the adjusting ring 300, the first through hole is a circular hole, the inner diameter of the first through hole is greater than the diameter of the first ball 600, the second through hole is arranged on the balance ring 500 along the axial direction of the adjusting ring 300, the second through hole is also a circular hole, the second through hole is coaxial with the first through hole, the inner diameter of the second through hole is greater than the diameter of the first ball 600, the plugging member 800 is a plugging screw, the inner wall of the first through hole is provided with an internal thread for screwing with the plugging screw, the inner wall of the second through hole can be provided with an internal thread for screwing with the plugging screw, or can be a smooth plane, of course, in other embodiments, the plugging member 800 can also adopt a plugging pin, the plugging pin can be detachably connected by using a key. In addition, two first balls 600 adjacent to the plugging member 800 among the plurality of first balls 600 respectively abut against the plugging member 800, and two adjacent first balls 600 among the remaining first balls 600 abut against each other.

[0046] When assembling the lens structure, first, the adjusting ring 300 is sleeved on the outer peripheral surface of the lens barrel 100, then the balance ring 500 is placed on the end face of the adjusting ring 300 close to the first end of the lens barrel 100, then the stopper 200 is installed on the end face of the first end of the lens barrel 100, at this time, the balance ring 500 will be sleeved on the outer periphery of the stopper 200, finally, the second through hole is aligned with the first through hole, at this time, the user can put the first ball 600 into the first accommodating groove 310 through the first through hole and the second through hole, after the putting is completed, the first through hole and the second through hole are plugged by the plugging member 800, so as to prevent the first ball 600 in the first accommodating groove 310 from rolling outwards.

[0047] Reference Figures 1 to 3 As an embodiment in the embodiment, the adjusting member is an adjusting screw 410, the stopper 200 is provided with a threaded hole along the axial direction of the adjusting ring 300, and the adjusting screw 410 is arranged in the threaded hole and is in threaded cooperation with the threaded hole.

[0048] In the embodiment, the threaded through hole is arranged on the stop ring 220, and the adjusting screw 410 is a headless screw. The screw head of the headless screw is formed as the force applying end of the adjusting member. This design not only reduces the damage of the force applying end of the adjusting member to the balance ring 500, prolongs the service life of the balance ring 500, but also enables the end of the adjusting screw 410 away from the force applying end to be completely screwed into the threaded through hole, thereby ensuring the flatness of the end face of the end of the stop member 200 away from the lens barrel 100. Of course, in other embodiments, the adjusting screw 410 can also be a common screw or other types of screws.

[0049] With reference to Figure 6 , as another embodiment in the application, the adjusting member includes an adjusting pin 420, a limiting column 430 and a fixing sleeve 440. The stop member 200 is provided with a mounting through hole in the axial direction of the adjusting ring 300. The adjusting pin 420 is arranged in the mounting through hole. The stop member 200 is provided with an accommodating groove on the end face away from the lens barrel 100. The accommodating groove is arranged on one side of the mounting through hole and communicates with the mounting through hole. The fixing sleeve 440 is fixedly arranged in the accommodating groove in a direction perpendicular to the extension direction of the mounting through hole. The limiting column 430 is arranged in the fixing sleeve 440. The adjusting pin 420 is uniformly and spacedly provided with a plurality of limiting holes for the limiting column 430 along the length direction of the adjusting pin 420. The limiting column 430 can be arranged in one of the limiting holes to limit the movement of the adjusting pin 420 in the mounting through hole. In addition, the adjusting member further includes a return spring 450. The return spring 450 is arranged between the end face of the end of the limiting column 430 away from the adjusting pin 420 and the groove wall of the accommodating groove away from the mounting through hole. The first end of the return spring 450 is fixedly connected with the limiting column 430, and the second end of the return spring 450 is fixedly connected with the groove wall of the accommodating groove. Specifically, the mounting through hole is arranged on the stop ring 220.

[0050] When the movement gap of the adjusting ring 300 on the lens barrel 100 needs to be eliminated, the user first drives the limiting column 430 out of the limiting hole, and then presses the adjusting pin 420 to move the adjusting pin 420 towards the adjusting ring 300. When the adjusting pin 420 moves to a position at which the movement gap of the adjusting ring 300 on the lens barrel 100 can be eliminated, the adjusting pin 420 stops moving. Then the limiting column 430 is released. The limiting column 430 is inserted into the limiting hole corresponding to the limiting column 430 under the action of the return spring 450, so that the adjusting pin 420 is fixed at the position.

[0051] With reference to Figure 1 and Figure 9 In order to balance the movement of the balance ring 500 along the axial direction of the adjusting ring 300, a plurality of adjusting members are arranged on the stop member 200.

[0052] With reference to Figure 7 andFigure 8 As an optional mode of the embodiment, a second accommodating groove 320 is arranged on the end of the adjusting ring 300 away from the stopper 200 along the circumferential direction of the adjusting ring 300, and the second accommodating groove 320 has a groove opening facing the lens barrel 100; the lens structure further comprises a second rolling element arranged in the second accommodating groove 320 and capable of rolling in the second accommodating groove 320 along the circumferential direction of the adjusting ring 300, the stopper surface 121 abuts against the surface of the second rolling element, and the outer circumferential surface of the lens barrel 100 abuts against the surface of the second rolling element.

[0053] In the optional mode, the second accommodating groove 320 is an annular groove, and of course, in other embodiments, the second accommodating groove 320 can also be an arc-shaped groove; the second rolling element arranged thereon weakens the friction between the adjusting ring 300 and the lens barrel 100, reduces the noise generated by the friction, reduces the abrasion, and prolongs the service life of the adjusting ring 300 and the lens barrel 100.

[0054] Referring to Figure 8 As an optional mode of the embodiment, the groove wall of the second accommodating groove 320 away from the lens barrel 100 is a second inclined wall, and the second inclined wall gradually inclines towards the lens barrel 100 from the end of the adjusting ring 300 away from the stopper 200 to the end of the adjusting ring 300 away from the stopper 200.

[0055] In the optional mode, the included angle between the extension direction of the second inclined wall and the axis direction of the lens barrel 100 is 45°, and of course, in other embodiments, the included angle between the extension direction of the second inclined wall and the axis direction of the lens barrel 100 can also be 30°, 60° or other degrees. The second inclined wall thus designed further facilitates the elimination of the movement gap of the adjusting ring 300 on the lens barrel 100 and the centering of the axis of the adjusting ring 300 and the axis of the lens barrel 100.

[0056] Referring to Figure 2 , Figure 7 and Figure 8 As an optional mode of the embodiment, the second rolling element comprises at least two second rolling balls 700, and the connecting direction of the ball centers of the second rolling balls 700 is parallel to the circumferential direction of the adjusting ring 300.

[0057] In the optional mode, the two adjacent second rolling balls 700 abut each other, and with the rotation of the adjusting ring 300, each second rolling ball 700 will also rotate; the plurality of second rolling balls 700 are arranged to weaken the friction between the adjusting ring 300 and the lens barrel 100, reduce the noise generated by the friction, reduce the wear, and prolong the service life of the adjusting ring 300 and the lens barrel 100. Of course, in other embodiments, the second rolling member can also include a second mounting ring frame arranged around the circumference of the adjusting ring 300, the second mounting ring frame is mounted in the second accommodating groove 320, each second rolling ball 700 is rollingly embedded in the second mounting ring frame, and the surface of the second mounting ring frame is provided with an outer leakage hole for the second rolling ball 700 to protrude outward. When assembling the lens structure, a plurality of second rolling balls 700 can be first sequentially bonded on the outer circumferential surface of the lens barrel body 110 around the circumference of the lens barrel body 110, then the adjusting ring 300 is sleeved on the lens barrel body 110, and then the remaining assembly operation is completed.

[0058] With reference to Figure 9 The stopper 200 in the embodiment is detachably connected with the lens barrel 100. In the embodiment, the end face of the stopper 200 close to the lens barrel 100 is attached to the end face of the first end of the lens barrel 100, the stopper 200 is detachably connected with the lens barrel 100 by the mounting screw 900, the end face of the stopper 200 away from the lens barrel 100 is provided with a first mounting through hole in the axial direction of the lens barrel 100, the end face of the first end of the lens barrel 100 is provided with a second mounting through hole coaxial with and in communication with the first mounting through hole, the hole walls of the first mounting through hole and the second mounting through hole are provided with internal threads matched with the mounting screw 900; in addition, in order to strengthen the connection strength of the stopper 200 and the lens barrel 100, the mounting screw 900 is provided with a plurality of mounting screws 900, and the plurality of mounting screws 900 are arranged at intervals in the circumferential direction of the stopper 200.

[0059] With reference to Figures 1 to 9According to another aspect of the present application, embodiments of the present application provide a camera comprising the lens structure described above. When a user needs to adjust the focal length or other parameters of the lens structure, the user can adjust the focal length or other parameters by rotating the adjusting ring 300. With the rotation of the adjusting ring 300 on the lens barrel 100, the adjusting ring 300 will not only rotate on the lens barrel 100 circumferentially, but also reciprocate on the lens barrel 100 axially due to the influence of manufacturing tolerances, friction and other factors. In this case, the user can eliminate the movement gap of the adjusting ring 300 on the lens barrel 100 by adjusting the adjusting member to push the adjusting ring 300 to move away from the stop member 200, so that the adjusting ring 300 can only rotate on the lens barrel 100 circumferentially, but cannot move on the lens barrel 100. After adjusting the adjusting member, the user can rotate the adjusting ring 300 to determine whether the rotation of the adjusting ring 300 is smooth. If the user feels that the rotation of the adjusting ring 300 is still not smooth, the user can continue to adjust the adjusting ring 300 by adjusting the adjusting member to push the adjusting ring 300 to move away from or close to the stop member 200, until the user feels that the rotation of the adjusting ring 300 on the lens barrel 100 becomes smooth.

[0060] The preferred embodiments of the present application have been described above with the specific details. However, it should be apparent, those with ordinary skills in the art, that the present application can be carried out with the appropriate modifications, equivalent replacements, and improvements without departing from the spirit and principles of the present application. Therefore, the scope of the present application should be governed by the protection scope of the claims.

Claims

1. A lens structure, characterized in that: The lens structure comprises: a fixing portion, the fixing portion comprising a lens barrel (100) and a stopper (200), the stopper (200) being arranged on an end surface of a first end of the lens barrel (100); An adjusting ring (300) is rotatably sleeved on the outer periphery of the fixing portion, the stopper (200) is used to prevent the adjusting ring (300) from moving toward a side of the stopper (200) away from the lens barrel (100), and the lens barrel (100) has a stopper surface (121) for preventing the adjusting ring (300) from moving toward a side of the lens barrel (100) away from the stopper (200); an adjusting member, which is inserted into the stopper (200) and has a force-applying end capable of applying a pressing force to the adjusting ring (300), and is capable of reciprocating along the axial direction of the lens barrel (100) so as to push the adjusting ring (300) to move along the axial direction of the lens barrel (100); The lens structure further comprises a balancing ring (500), the balancing ring (500) being sleeved on the outer periphery of the stopper (200) and being located between the force-applying end of the adjusting member and the adjusting ring (300), the force-applying end being capable of abutting against an end face of the balancing ring (500) close to the stopper (200) so as to apply the pressing force to the balancing ring (500), and the balancing ring (500) being used to apply the pressing force applied to the balancing ring (500) to the adjusting ring (300); A first accommodating groove (310) is provided on an end surface of the adjusting ring (300) close to the stopper (200) along the circumference of the adjusting ring (300), and the first accommodating groove (310) has a notch arranged toward the lens barrel (100); the lens structure includes a first rolling element, the first rolling element is arranged in the first accommodating groove (310), and can roll in the first accommodating groove (310) around the circumference of the adjusting ring (300); the end surface of the balancing ring (500) close to the adjusting ring (300) abuts against the surface of the first rolling element, and the outer peripheral surface of the stopper (200) abuts against the surface of the first rolling element; A groove wall of the first accommodating groove (310) away from the lens barrel (100) is a first inclined wall, the first inclined wall gradually tilting toward the lens barrel (100) from an end of the adjustment ring (300) close to the stopper (200) to an end away from the stopper (200), and the first rolling member abuts against the first inclined wall; The first accommodating groove (310) is an annular groove or an arc-shaped groove.

2. The lens structure according to claim 1, characterized in that: The first rolling element comprises at least two first rolling balls (600), and the direction of the line connecting the centers of the first rolling balls (600) is parallel to the circumferential direction of the adjustment ring (300).

3. The lens structure according to claim 2, characterized in that: A first through hole for the passage of the first ball (600) is provided on the end face of the stopper (200) away from the adjustment ring (300) and extends to the end face of the stopper (200) close to the adjustment ring (300), and a second through hole for the passage of the first ball (600) is provided on the end face of the balance ring (500) away from the adjustment ring (300). The first through hole corresponds to the second through hole and is connected to each other. The lens structure further comprises a blocking member (800), and the blocking member (800) is detachably provided in the first through hole and the second through hole.

4. The lens structure according to any one of claims 1 to 3, characterized in that: The adjusting member is an adjusting screw (410), and a threaded through hole is provided on the stopper (200) along the axial direction of the adjusting ring (300). The adjusting screw (410) is inserted into the threaded through hole and is threadably matched with the threaded through hole.

5. The lens structure according to any one of claims 1 to 3, characterized in that: A second accommodating groove (320) is provided on the end surface of the adjusting ring (300) away from the stopper (200) along the circumference of the adjusting ring (300), and the second accommodating groove (320) has a notch arranged toward the lens barrel (100); the lens structure also includes a second rolling member, the second rolling member is provided in the second accommodating groove (320), and can roll in the second accommodating groove (320) around the circumference of the adjusting ring (300), the stopper surface (121) abuts against the surface of the second rolling member, and the outer peripheral surface of the lens barrel (100) abuts against the surface of the second rolling member.

6. The lens structure according to claim 5, characterized in that: A groove wall of the second accommodating groove (320) away from the lens barrel (100) is a second inclined wall, and the second inclined wall gradually tilts toward the lens barrel (100) from an end of the adjustment ring (300) away from the stop member (200) to an end close to the stop member (200), and the second rolling member abuts against the second inclined wall.

7. The lens structure according to claim 5, characterized in that: The second rolling element comprises at least two second rolling balls (700), and the direction of the line connecting the centers of the second rolling balls (700) is parallel to the circumferential direction of the adjustment ring (300).

8. The lens structure according to claim 5, characterized in that: The stopper (200) and the lens barrel (100) are detachably connected.

9. A camera, characterized in that: The camera includes the lens structure according to any one of claims 1 to 8.

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