Lens adjusting device and lens module

Abstract

The utility model discloses a lens adjusting device and a lens module, and relates to the technical field of lens modules, and the lens adjusting device comprises a focusing ring and an adjusting screw rod. Wherein a gap with the adjustable size is formed in the disconnected position of the focusing ring, the focusing ring comprises a first connecting part and a second connecting part which are located on the two sides of the gap, the first connecting part is provided with a first threaded hole, and the second connecting part is provided with a second threaded hole; the adjusting screw rod comprises a threaded connecting part, and the threaded connecting part penetrates through the first threaded hole and then is in threaded connection with the second threaded hole so as to adjust the size of the gap. The lens adjusting device not only can ensure the clamping force requirement when the focusing ring and the lens are assembled, but also can realize the anti-falling of the adjusting screw rod after the lens adjusting device is taken and assembled from the lens, thereby ensuring the integrity of the whole accessory, greatly improving the assembly efficiency, and ensuring the multipurpose use stability of the focusing ring.

Description

Technical Field

[0001] The present application relates to the technical field of lens modules, and in particular to a lens adjustment device. The present application also relates to a lens module having the lens adjustment device. Background Art

[0002] In the existing system, the focus ring of the lens module needs sufficient clamping force to ensure stability for multi-purpose use. The focus ring is usually composed of two half rings fastened by screws or by a shaped buckle.

[0003] However, in the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art:

[0004] The focusing ring fastened with screws is more complicated to assemble and needs to be locked with special tools to ensure stability. In addition, there is also the risk of losing the screws when loosening the focusing ring. The focusing ring fastened with a shaped buckle has the problem of difficulty in assembly and conflict in clamping force, that is: when the clamping force is small, the assembly is relatively easy, and when the clamping force is large, the assembly is more difficult.

[0005] Therefore, it is necessary for those skilled in the art to provide a lens adjustment device that is easy to assemble and can ensure the clamping force of the focus ring in a timely manner. Utility Model Content

[0006] The purpose of the present application is to provide a lens adjustment device, which is easy to assemble and can ensure the clamping force when the focus ring and the lens are assembled. Another purpose of the present application is to provide a lens module including the lens adjustment device.

[0007] To achieve the above objectives, the present application provides a lens adjustment device, comprising:

[0008] A focus ring, wherein an adjustable gap is provided at a disconnected position of the focus ring, and the focus ring comprises a first connecting portion and a second connecting portion located on both sides of the gap, wherein the first connecting portion is provided with a first threaded hole, and the second connecting portion is provided with a second threaded hole;

[0009] The adjusting screw comprises a threaded connection portion, which passes through the first threaded hole and is threadedly connected to the second threaded hole to adjust the size of the gap.

[0010] In some embodiments, the adjusting screw includes an adjusting head and a threaded connecting rod connected to the adjusting head, and the threaded connecting portion is disposed at an end of the threaded connecting rod away from the adjusting head.

[0011] In some embodiments, the threaded connecting rod includes a polished rod section located between the threaded connecting portion and the adjusting head.

[0012] In some embodiments, the radial dimension of the adjusting head is greater than the radial dimension of the threaded connecting rod;

[0013] The adjusting head is a cylindrical head, or the radial dimension of the adjusting head gradually decreases in a direction approaching the threaded connection portion.

[0014] In some embodiments, the outer wall of the adjustment head is provided with an anti-slip surface.

[0015] In some embodiments, a limit block is provided on the inner ring of the focus ring, and the limit block is used to cooperate with the limit groove of the outer ring of the lens to limit the rotation of the focus ring relative to the lens.

[0016] In some embodiments, the lever is further included and a pin. The lever is rotatably connected to the second connecting portion via the pin. The lever can rotate around the axis of the pin so that when the lever is rotated to the plane where the focus ring is located, the lever is erected and the focus ring is rotated, and when the lever is rotated to a plane perpendicular to the focus ring, the lever is retracted.

[0017] In some embodiments, the second connecting portion is provided with a protruding structure, a rotating groove for the lever to rotate is provided in the protruding structure, and a pin is installed in the protruding structure so that the lever can rotate around the axis of the pin.

[0018] In some embodiments, the protruding structure is provided with a plurality of positioning holes arranged along the circumferential direction;

[0019] The lens adjustment device also includes a ball-actuating device, which includes a main body and a rolling ball exposed from the main body, an elastic member abutting between the rolling ball and the main body, and the elastic member can provide elastic force to the rolling ball, so that the rolling ball has a tendency to be exposed from the main body;

[0020] The bead is connected to the lever, and the bead is inserted into the corresponding positioning hole to position the lever.

[0021] The present application also provides a lens module, comprising any of the lens adjustment devices described above.

[0022] With respect to the above-mentioned background technology, the lens adjustment device provided in the embodiment of the present application includes a focus ring and an adjustment screw. Specifically, a gap of adjustable size is provided at the disconnected position of the focus ring, and the focus ring includes a first connecting portion and a second connecting portion located on both sides of the gap, the first connecting portion is provided with a first threaded hole, and the second connecting portion is provided with a second threaded hole; the adjustment screw includes a threaded connecting portion, and the threaded connecting portion passes through the first threaded hole of the first connecting portion and is threadedly connected to the second threaded hole of the second connecting portion to adjust the size of the gap. It can be seen that the size of the gap is adjusted by fastening the adjusting screw with the threads of the first connecting portion and the second connecting portion, thereby realizing the tightness adjustment of the focus ring and the lens assembly. Compared with traditional screw fastening, the lens adjustment device provided by the embodiment of the present application has a first threaded hole and a second threaded hole respectively arranged in the first connection part and the second connection part. When fastening, the threaded connection part of the adjustment screw is first passed through the first threaded hole of the first connection part and then threadedly connected to the second threaded hole of the second connection part. In this way, not only can the clamping force requirements when the focus ring and the lens are assembled be guaranteed, but also the adjustment screw can be prevented from falling off after the lens adjustment device is removed from the lens, thereby ensuring the integrity of the entire accessory, facilitating direct assembly of the device when it is used next time, and greatly improving the assembly efficiency. In other words, the lens adjustment device is easy to assemble, and the clamping force generated is stable and reliable, thereby ensuring the stability of the focus ring for multi-purpose use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application 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 embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 An exploded view of the lens adjustment device in an embodiment of the present application;

[0025] Figure 2 for Figure 1 A schematic diagram of a lever in a lens adjustment device shown standing upright;

[0026] Figure 3 for Figure 1 A schematic diagram of another angle showing the lever of the lens adjustment device being erected;

[0027] Figure 4 for Figure 1 A schematic diagram of a lens adjustment device with a lever retracted;

[0028] Figure 5 for Figure 1 A schematic diagram of another angle showing the lever of the lens adjustment device being retracted.

[0029] in:

[0030] 100-focusing ring, 101-gap, 102-first connecting portion, 1021-first threaded hole, 103-second connecting portion, 1031-protruding structure, 10311-positioning hole, 1032-rotation groove, 1033-second threaded hole, 104-limiting block;

[0031] 200-adjusting screw, 201-adjusting head, 2011-hexagonal socket, 2012-anti-slip surface, 202-threaded connecting rod, 2021-threaded connecting part, 2022-smooth rod section;

[0032] 300- lever;

[0033] 400-pin;

[0034] 500-bead, 501-body, 502-ball. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] It should be noted that the directional words such as "upper end, lower end, left side, right side" described below are all defined based on the drawings in the specification.

[0038] Please refer to Figures 1 to 5 , Figure 1 An exploded view of the lens adjustment device in an embodiment of the present application; Figure 2 for Figure 1 A schematic diagram of a lever in a lens adjustment device shown standing upright; Figure 3 for Figure 1 A schematic diagram of another angle showing the lever of the lens adjustment device being erected; Figure 4 for Figure 1 A schematic diagram of a lens adjustment device with a lever retracted; Figure 5 for Figure 1 A schematic diagram of another angle showing the lever of the lens adjustment device being retracted.

[0039] The lens adjustment device provided in the embodiment of the present application comprises a focus ring 100 and an adjustment screw 200. The adjustment screw 200 and the focus ring 100 are fastened by threads to achieve the tightness of the assembly of the focus ring 100 and the lens.

[0040] Specifically, a gap 101 of adjustable size is provided at the disconnected position of the focus ring 100, and the gap 101 at the disconnected position of the focus ring 100 is 5±2 mm. The focus ring 100 includes a first connecting portion 102 and a second connecting portion 103 located on both sides of the gap 101, the first connecting portion 102 is provided with a first threaded hole 1021, and the second connecting portion 103 is provided with a second threaded hole 1033; the adjusting screw 200 includes a threaded connecting portion 2021, and the threaded connecting portion 2021 passes through the first threaded hole 1021 of the first connecting portion 102 and is threadedly connected to the second threaded hole 1033 of the second connecting portion 103 to adjust the size of the gap 101.

[0041] It can be seen that in the lens adjustment device of the present application, the size of the gap 101 is adjusted by adjusting the threaded fastening connection between the screw 200 and the first connecting part 102 and the second connecting part 103, thereby achieving tightness adjustment of the focus ring 100 and the lens assembly.

[0042] Compared with traditional screw fastening, the lens adjustment device provided in the embodiment of the present application is respectively provided with a first threaded hole 1021 and a second threaded hole 1033 in the first connection part 102 and the second connection part 103. When fastening, the threaded connection part 2021 of the adjustment screw 200 is first screwed through the first threaded hole 1021 of the first connection part 102, and then threadedly connected to the second threaded hole 1033 of the second connection part 103. In this way, not only the clamping force requirement when the focus ring 100 and the lens are assembled can be guaranteed, but also the adjustment screw 200 can be prevented from falling off after the lens adjustment device is removed from the lens, thereby ensuring the integrity of the entire accessory, facilitating direct assembly of the device the next time it is used, and greatly improving the efficiency of assembly.

[0043] In other words, the lens adjustment device is easy to assemble and generates a stable and reliable clamping force, thereby ensuring the stability of the multi-purpose use of the focus ring 100.

[0044] In some embodiments, the adjusting screw 200 includes an adjusting head 201 and a threaded connecting rod 202 connected to the adjusting head 201 , and the threaded connecting portion 2021 is disposed at one end of the threaded connecting rod 202 away from the adjusting head 201 .

[0045] In this embodiment, the adjusting head 201 serves as the force-applying part for the adjusting screw 200 to be screwed into the first threaded hole 1021. The radial dimension (i.e., the outer diameter) of the adjusting head 201 is larger than the radial dimension of the threaded connecting rod 202. This is not only convenient for operation, but also helps the adjusting head 201 to abut against the first connecting portion 102 after the threaded connecting rod 202 is screwed, thereby ensuring the stability and reliability of the adjusting screw 200 and the focusing ring 100 after being threadedly fastened.

[0046] The adjusting head 201 may be a cylindrical head, or may be a cup head or a cone head. When the adjusting head 201 is a cup head, the radial dimension of the adjusting head 201 gradually decreases in a direction close to the threaded connection portion 2021 .

[0047] Preferably, the adjusting head 201 is a cylindrical head.

[0048] Of course, according to actual needs, when tightening the thread, the adjusting head 201 can be manually screwed. Compared with the method of tightening the screws using a special tool, the method of manually screwing the adjusting head 201 can greatly improve the tightening efficiency.

[0049] In order to facilitate manual screwing of the adjusting head 201, an anti-slip surface 2012 can be provided on the outer wall of the adjusting head 201. The anti-slip surface 2012 can be specifically provided as knurling, which is conducive to increasing the friction between the hand and the adjusting head 201, thereby ensuring the tightening force of the adjusting screw 200.

[0050] Of course, the adjusting head 201 may also be provided with an inner hexagonal groove 2011. In this way, the tightening adjustment of the adjusting screw 200 and the focusing ring 100 may also be achieved by using an inner hexagonal wrench.

[0051] In some embodiments, in addition to the threaded connection portion 2021, the threaded connection rod 202 also includes a polished rod segment 2022, which is located between the threaded connection portion 2021 and the adjustment head 201. The so-called polished rod segment 2022 refers to a non-threaded segment of the threaded connection rod 202 located between the threaded connection portion 2021 and the adjustment head 201.

[0052] Preferably, the length of the threaded connection portion 2021 on the threaded connection rod 202 is smaller than the length of the bare rod section 2022 , and the length of the threaded connection portion 2021 is 3±1 mm.

[0053] It can be understood that the threaded connection part 2021 on the threaded connection rod 202 is first screwed out of the first threaded hole 1021 of the first connection part 102, and then threadedly connected to the second threaded hole 1033 of the second connection part 103 through the gap 101. When the threaded connection part 2021 and the second threaded hole 1033 of the second connection part 103 are screwed together, the bare rod section 2022 penetrates the first threaded hole 1021 of the first connection part 102. At this time, even if the threaded connection part 2021 at the front end is separated from the second threaded hole 1033 of the second connection part 103, due to the existence of the threaded connection part 2021, the adjusting screw 200 will not be easily loosened and fall off.

[0054] In some embodiments, the lens adjustment device further includes a lever 300 and a pin 400 , and the lever 300 is rotatably connected to the second connection portion 103 via the pin 400 .

[0055] Specifically, the pin 400 is horizontally installed on the second connecting part 103, and the lever 300 can rotate around the axis of the pin 400. When the lever 300 rotates to the plane where the focus ring 100 is located, the lever 300 stands up, so that the focus ring 100 can be rotated relative to the lens by toggling the lever 300. When the lever 300 rotates to a plane perpendicular to the focus ring 100, the lever 300 is retracted, which can prevent the height of the lever 300 from exceeding the lens and affecting the normal use of the equipment where the lens is located (such as a gun sight).

[0056] In order to facilitate the assembly of the lever 300, the second connecting portion 103 is provided with a protruding structure 1031, which is specifically a U-shaped structure. A rotating groove 1032 is provided in the protruding structure 1031 for the lever 300 to rotate. The bottom of the lever 300 is accommodated in the rotating groove 1032, and the rotating groove 1032 is a U-shaped groove. The pin shaft 400 is installed in the protruding structure 1031, so that the lever 300 can rotate in the rotating groove 1032 around the axis of the pin shaft 400.

[0057] In addition, the lens adjustment device also includes a bead 500, and the lever 300 can be raised and pressed down by the cooperation of the bead 500 and the pin 400. This arrangement has a certain feedback feel and anti-loosening effect.

[0058] Specifically, the protruding structure 1031 is provided with a plurality of positioning holes 10311 arranged along the circumferential direction, and the ball 500 can switch positions between the plurality of positioning holes 10311, so as to adjust the rotation angle of the lever 300. The ball 500 includes a main body 501 and a ball 502 exposed from the main body 501, and an elastic member is abutted between the ball 502 and the main body 501, and the elastic member is specifically a compression spring, and the elastic member can provide elastic force to the ball 502, so that the ball 502 always has a tendency to be exposed from the main body 501.

[0059] It is understandable that one end of the bead 500 away from the ball 502 is connected to the lever 300. When the lever 300 rotates, the lever 300 drives the bead 500 to move. When the bead 500 is inserted into the corresponding positioning hole 10311, the lever 300 can be positioned.

[0060] For example, two positioning holes 10311 are provided, and the angle between the two positioning holes 10311 in the circumferential direction is 90°. When the lever 300 drives the ball 500 to rotate to one of the positioning holes 10311, the lever 300 is positioned in the plane where the focus ring 100 is located, and the lever 300 is in an upright state, so that the focus ring 100 can be rotated relative to the lens by moving the lever 300. When the lever 300 drives the ball 500 to rotate to the other positioning hole 10311, the lever 300 is perpendicular to the plane where the focus ring 100 is located, and the lever 300 is in a retracted state.

[0061] In order to facilitate the rotation of the lever 300, knurling may also be provided on the head of the lever 300 to increase the contact friction.

[0062] In some embodiments, the inner ring of the focus ring 100 may also be provided with a stopper 104, and the setting of the stopper 104 can realize the auxiliary stop function of the focus ring 100 and the outer ring of the lens. Specifically, the stopper 104 is used to cooperate with the stopper groove of the outer ring of the lens to limit the rotation of the focus ring 100 relative to the lens.

[0063] The present application provides a lens module, including a lens and the lens adjustment device described in the above specific embodiment, the lens adjustment device is assembled on the lens, and the adjustment screw 200 and the focus ring 100 are fastened by threads to achieve the tightness of the focus ring 100 and the lens assembly. The other parts of the lens module can refer to the prior art and will not be elaborated in this article.

[0064] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0065] The lens adjustment device and lens module provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the scheme and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A lens adjustment device, characterized in that: include: A focus ring (100), wherein an adjustable gap (101) is provided at a disconnected position of the focus ring (100), the focus ring (100) comprising a first connecting portion (102) and a second connecting portion (103) located on both sides of the gap (101), the first connecting portion (102) being provided with a first threaded hole (1021), and the second connecting portion (103) being provided with a second threaded hole (1033); An adjusting screw (200) comprises a threaded connection portion (2021), wherein the threaded connection portion (2021) passes through the first threaded hole (1021) and is threadedly connected to the second threaded hole (1033) to adjust the size of the gap (101).

2. The lens adjustment device according to claim 1, characterized in that: The adjusting screw rod (200) comprises an adjusting head (201) and a threaded connecting rod (202) connected to the adjusting head (201), and the threaded connecting portion (2021) is arranged at an end of the threaded connecting rod (202) away from the adjusting head (201).

3. The lens adjustment device according to claim 2, characterized in that: The threaded connecting rod (202) comprises a polished rod section (2022) located between the threaded connecting portion (2021) and the adjusting head (201).

4. The lens adjustment device according to claim 2, characterized in that: The radial dimension of the adjusting head (201) is greater than the radial dimension of the threaded connecting rod (202); The adjusting head (201) is a cylindrical head, or the radial dimension of the adjusting head (201) gradually decreases in a direction approaching the threaded connection portion (2021).

5. The lens adjustment device according to claim 2, characterized in that: The outer wall of the regulating head (201) is provided with an anti-slip surface (2012).

6. The lens adjustment device according to claim 1, characterized in that: The inner ring of the focus ring (100) is provided with a limit block (104), and the limit block (104) is used to cooperate with the limit groove of the outer ring of the lens to limit the rotation of the focus ring (100) relative to the lens.

7. The lens adjustment device according to any one of claims 1 to 6, characterized in that: The invention also comprises a lever (300) and a pin (400), wherein the lever (300) is rotatably connected to the second connection portion (103) via the pin (400), and the lever (300) can be rotated around the axis of the pin (400), so that when the lever (300) is rotated to a plane where the focus ring (100) is located, the lever (300) is erected and the focus ring (100) is driven to rotate, and when the lever (300) is rotated to a plane perpendicular to the focus ring (100) is located, the lever (300) is retracted.

8. The lens adjustment device according to claim 7, characterized in that: The second connecting portion (103) is provided with a protruding structure (1031), and a rotating groove (1032) is provided in the protruding structure (1031) for the lever (300) to rotate. The pin shaft (400) is installed in the protruding structure (1031), so that the lever (300) can rotate around the axis of the pin shaft (400).

9. The lens adjustment device according to claim 8, characterized in that: The protruding structure (1031) is provided with a plurality of positioning holes (10311) arranged along the circumferential direction; The lens adjustment device further comprises a ball-acting device (500), wherein the ball-acting device (500) comprises a main body (501) and a rolling ball (502) exposed from the main body (501), wherein an elastic member is abutted between the rolling ball (502) and the main body (501), and the elastic member can provide elastic force to the rolling ball (502), so that the rolling ball (502) has a tendency to be exposed from the main body (501); The shifting bead (500) is connected to the shifting rod (300), and the shifting bead (500) is embedded in the corresponding positioning hole (10311) to position the shifting rod (300).

10. A lens module, characterized in that: It comprises a lens adjustment device as described in any one of claims 1 to 9.

Images