Optical lens barrel assembly and camera module

Abstract

The application provides a lens barrel assembly of an optical lens and a camera module. The lens barrel assembly comprises a lens barrel, a focusing ring, a plurality of scale rings and a positioning assembly. The focusing ring is capable of rotating relative to the lens barrel around an axis of the lens barrel. The scale rings are capable of being sleeved on the outside of the focusing ring. The outside surface of the scale rings is provided with scales. The scale units on at least two scale rings are different. The scale rings are capable of being detachably connected with the focusing ring through the positioning assembly. The focusing ring is relatively fixed with one of the scale rings through the positioning assembly. The focusing ring in the lens barrel assembly is suitable for different application scenarios when the focusing ring is adapted to different scale rings. Moreover, when different scale rings are replaced, the purpose of free replacement, convenience and accurate installation is achieved.

Description

Technical Field

[0001] This application relates to the field of lens barrel assemblies for optical lenses, and particularly to a lens barrel assembly for an optical lens and a camera module. Background Technology

[0002] The camera module includes a lens barrel and an optical lens disposed on the lens barrel. When the optical lens is a focusing lens, a focusing ring is provided on the lens barrel. The focusing ring drives the optical lens to move to achieve automatic focusing of the optical lens.

[0003] The focusing ring in this technology features graduations for precise focusing. However, it suffers from drawbacks in market adaptability, failing to meet the needs of different users in various scenarios. In particular, its use in international collaborative photography, scientific research experiments, and industrial testing is cumbersome and error-prone due to differing unit standards across countries and equipment, reducing work efficiency and potentially affecting the accuracy of shooting and testing results due to unit conversion errors. Utility Model Content

[0004] This application provides an optical lens barrel assembly and a camera module to solve the problems of limited application scenarios and poor accuracy of optical lens barrel assemblies in related technologies.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, embodiments of this application provide a lens barrel assembly for an optical lens, comprising: a lens barrel, a focusing ring, a plurality of scale rings, and a positioning component. The focusing ring is rotatable relative to the lens barrel about its axis. The scale rings are sleeved on the outside of the focusing ring, and the outer surface of the scale rings is provided with graduations. The graduations on at least two of the scale rings are different. The scale rings are detachably connected to the focusing ring via the positioning component. The focusing ring is fixed relative to one of the scale rings via the positioning component.

[0007] In some implementations, the positioning component includes a support ring, a first fastener, and a second fastener. The support ring has a mounting groove that extends circumferentially along the support ring. The first fastener passes through the mounting groove and is screwed to the focusing ring. The second fastener can pass through the scale ring and be detachably connected to the focusing ring.

[0008] In some implementations, the scale ring is provided with a clearance groove adapted to the support ring, the clearance groove extending circumferentially along the support ring, the clearance groove being used to accommodate the support ring, and the groove sidewall of the clearance groove in the circumferential direction of the support ring being used to restrict the rotation of the scale ring relative to the focusing ring.

[0009] In some implementations, the scale ring includes a cylinder and a flange, the flange extending from the inner wall of the cylinder toward the center of the cylinder, the flange being located at the axial end of the cylinder; the flange is provided with the clearance groove, the adjustment groove extending circumferentially along the cylinder, the flange being provided with the adjustment groove, and the second fastener passing through the adjustment groove and connected to the focusing ring.

[0010] In some implementations, the clearance groove extends through the flange along the axial direction of the cylinder.

[0011] In some implementations, there are multiple flanges, which are arranged at intervals along the circumference of the cylinder, wherein the space between two adjacent flanges forms the clearance groove.

[0012] In some implementations, the outer surface of the scale ring is provided with an anti-slip structure, which is arranged along the circumference of the scale ring.

[0013] In some implementations, the end face of the focusing ring is provided with a plurality of threaded holes, which are arranged at intervals along the circumference of the focusing ring. A portion of the threaded holes are used to be screwed into the first fastener, and a portion of the threaded holes are used to be screwed into the second fastener.

[0014] In some implementations, the plurality of scale rings includes a first scale ring and a second scale ring, wherein the outer surface of the first scale ring is provided with metric scale and the outer surface of the second scale ring is provided with imperial scale.

[0015] In some implementations, the first scale is a metric scale and the second scale is an imperial scale.

[0016] Secondly, embodiments of this application also provide a camera module, including a lens barrel assembly and an optical lens as described in the first aspect above, wherein the optical lens includes a plurality of lenses, and at least a portion of the lenses are fixed to a focusing ring in the lens barrel assembly.

[0017] The beneficial effects of the lens barrel assembly provided in this application are as follows: Compared with related technologies, the focusing ring of this application can be adapted to multiple different scale rings. Furthermore, the scale rings can be detachably connected to the focusing ring via a positioning component. This allows users to replace the scale rings on the focusing ring using the positioning component to meet the needs of different application scenarios. Additionally, when users use the lens barrel in different scenarios such as international collaborative shooting, scientific research experiments, and industrial inspection, they may need to switch between metric and imperial units. In such cases, the configuration of multiple scale rings not only allows users to replace the scale rings on the focusing ring via the positioning component, selecting the scale ring with the required scale unit—making scale ring replacement free and convenient—but also, compared to the focusing ring... With a one-to-one matching scale ring, the focusing ring in this application is matched with multiple scale rings. Since different scale rings are compatible with the focusing ring, the core components in the lens barrel assembly, such as the connection between the focusing ring and the optical lens, do not need to be changed when used in different scenarios. Only the scale ring needs to be replaced for quick use, thereby improving the efficiency of the lens barrel assembly and ensuring the focusing accuracy of the focusing ring. When the scale ring on the focusing ring is damaged, the user does not need to buy a new scale ring and can replace it with another one in time. While improving the efficiency of the lens barrel assembly and ensuring the focusing accuracy, it saves the time and cost of purchasing additional accessories, thereby improving the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a camera module adapted to a metric scale ring in this application.

[0020] Figure 2 yes Figure 1 Exploded view;

[0021] Figure 3 yes Figure 1 A schematic diagram of the camera module from another perspective;

[0022] Figure 4 yes Figure 1 A schematic diagram of a graduated ring with metric markings;

[0023] Figure 5 This is a schematic diagram of the structure of the camera module with a scale ring adapted to imperial units, as described in this application.

[0024] Figure 6 yes Figure 5A schematic diagram of the camera module from another perspective;

[0025] Figure 7 yes Figure 5 A schematic diagram showing a scale ring adapted to imperial units.

[0026] Figure label:

[0027] 10. Lens tube; 11. Front seat; 12. Rear seat; 101. Marking; 102. Clearance opening;

[0028] 20. Focusing ring; 21. Threaded hole;

[0029] 301. First graduation ring; 302. Second graduation ring; 310. Clearance groove; 31. Cylinder body; 32. Flange; 33. Adjustment groove; 34. Anti-slip structure;

[0030] 40. Positioning component; 41. Bearing ring; 411. Mounting slot; 42. First fastener; 43. Second fastener;

[0031] 200. Optical lens. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, as fixed connection, detachable connection, or integral connection; those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] The camera module includes a lens barrel 10 and an optical lens 200 disposed on the lens barrel 10. When the optical lens 200 is a focusing lens, a focusing ring 20 is provided on the lens barrel 10. The optical lens 200 is moved by the focusing ring 20 to achieve automatic focusing of the optical lens 200.

[0037] The focusing ring 20 in the related technology has a scale for convenient and precise focusing. However, this focusing ring 20 has drawbacks in terms of market adaptability, and cannot meet the needs of different users in different scenarios. In particular, when this product is used in scenarios such as international collaborative shooting, scientific research experiments, and industrial testing, the different unit standards of different countries and equipment make the operation cumbersome and prone to errors, reducing work efficiency, and may even affect the accuracy of shooting and testing results due to unit conversion errors.

[0038] To address the aforementioned issues, this application provides a lens barrel assembly for an optical lens 200 and a camera module. The camera module includes a lens barrel assembly and an optical lens 200, the optical lens 200 comprising multiple lenses.

[0039] The working principle of the aforementioned optical lens 200 is as follows: light reflected from the subject passes through the optical lens 200 to generate an optical image, which is projected onto the imaging surface of the photosensitive element. The photosensitive element converts the optical image into an electrical signal, i.e., an analog image signal, and transmits it to the processor. The photosensitive element (also called an image sensor) is a semiconductor chip containing hundreds of thousands to millions of photodiodes on its surface. When illuminated by light, these photodiodes generate electrical charges. The photosensitive element can be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) device. A CCD is made of a highly sensitive semiconductor material that converts light into electrical charges. A charge-coupled device consists of many photosensitive units, typically measured in megapixels. When the surface of the photosensitive element is illuminated by light, each photosensitive unit reflects an electrical charge onto the component. The signals generated by all the photosensitive units are added together to form a complete image.

[0040] Among them, the optical lens 200 mainly uses the refraction principle of the lens in the imaging lens group to form an image, that is, the light of the scene passes through the imaging lens group to form a clear image on the focal plane, and the image of the scene is recorded by the photosensitive element located on the focal plane.

[0041] like Figures 1 to 5 As shown, in this embodiment, the lens barrel assembly includes: a lens barrel 10, a focusing ring 20, multiple scale rings, and a positioning component 40. The focusing ring 20 is rotatable relative to the lens barrel 10 about its axis. The scale rings are sleeved on the outside of the focusing ring 20, and the outer surface of the scale rings is provided with scales. At least two scale rings have different scale units. The scale rings are detachably connected to the focusing ring 20 via the positioning component 40. The focusing ring 20 is fixed relative to one of the scale rings via the positioning component 40.

[0042] The lens barrel 10 is mainly used to fix and mount the optical lens 200 and the photosensitive element. In this embodiment, among all the lenses in the optical lens 200, one or more lenses may be fixed with the focusing ring 20, that is, the optical lens 200 can achieve automatic focusing by moving the lens group through the focusing ring 20.

[0043] The number of the aforementioned scale rings is at least two. The two scale rings are identical in structure, except that the scale units may differ. That is, each scale ring can be adapted to the same focusing ring 20. In this embodiment, the multiple scale rings include at least a first scale ring 301 and a second scale ring 302. The scale units on the first scale ring 301 are different, but the structures of the first scale ring 301 and the second scale ring 302 are identical. Both the first scale ring 301 and the second scale ring 302 can be adapted to the focusing ring 20 and are detachably connected. The scale units on the aforementioned scale rings may include, but are not limited to, metric and imperial scales. The unit of the aforementioned metric scale may be, but is not limited to, meters (m). The structure of the camera module adapted to the metric scale is as follows: Figure 1 As shown. The metric system is an internationally accepted unit of measurement with clear logic (based on a decimal system). The unit of measurement for the imperial scale above is feet (ft). The structure of a camera module adapted to the imperial scale is as follows. Figure 5 As shown.

[0044] The aforementioned positioning component 40 serves a positioning and fixing function. During the replacement of different scale rings, all components in the positioning component 40 can be removed, or only a portion of the components can be removed. The remaining components can serve a positioning function when installing another scale ring, thereby improving the assembly efficiency and assembly accuracy of the scale ring and the focusing ring 20.

[0045] The focusing ring 20 of this application can be adapted to multiple different scale rings. Furthermore, the scale rings can be detachably connected to the focusing ring 20 via the positioning component 40. This allows users to replace the scale rings on the focusing ring 20 using the positioning component 40 to meet the needs of different application scenarios. For example, users accustomed to imperial units can choose a scale ring with imperial graduations, which is fixed relative to the focusing ring 20 via the positioning component 40. When the user installs the optical lens 200 in the lens barrel assembly, rotating the scale ring moves the focusing ring 20 and the optical lens 200, achieving precise focusing of the optical lens 200. Similarly, users accustomed to metric units can choose a scale ring with metric graduations, which is fixed relative to the focusing ring 20 via the positioning component 40. Rotating the scale ring moves the optical lens 200, achieving precise focusing of the optical lens 200. Additionally, users may need to switch between imperial and metric units in different scenarios, such as international collaborative filming, scientific research experiments, and industrial inspection. The configuration of multiple scale rings not only allows users to replace the scale rings on the focusing ring 20 using the positioning component 40, selecting the scale ring with the desired scale unit, making scale ring replacement free and convenient, with a wide range of applications, but also, compared to the one-to-one matching of the focusing ring 20 and scale rings, the focusing ring 20 in this application is matched with multiple scale rings. Since different scale rings are compatible with the focusing ring 20, when used in scenarios such as international collaborative shooting, scientific research experiments, and industrial inspection, the core components in the lens barrel assembly, such as the connection between the focusing ring 20 and the optical lens 200, do not need to be changed. Only the scale rings need to be replaced for quick use, thereby improving the efficiency of the lens barrel assembly and ensuring the focusing accuracy of the focusing ring 20. When the scale ring on the focusing ring 20 is damaged, the user does not need to purchase a scale ring and can promptly replace it with another scale ring. While improving the efficiency of the lens barrel assembly and ensuring focusing accuracy, it also saves the time and cost of purchasing additional accessories, thereby improving the user experience.

[0046] Figure 2 The image only shows lenses at the first and last positions along the optical axis from the object side to the image side. The number of lenses in the optical lens 200 and the structure of the lens barrel 10 are intended to match, but are not specifically limited here. Figure 2 As shown, in this embodiment, the lens barrel 10 includes a front mount 11 and a rear mount 12. A lens located at a first position along the optical axis from the object side to the image side is fixed on the front mount 11, and a lens located at a last position along the optical axis from the object side to the image side is disposed on the rear mount 12. The aforementioned focusing ring 20 is connected between the front mount 11 and the rear mount 12 and is capable of rotating relative to the front mount 11 or the rear mount 12 about the axis of the lens barrel 10. A transmission mechanism is also provided between the lens barrel 10 and the focusing ring 20, which can convert the rotation of the focusing ring 20 into movement along the optical axis.

[0047] To facilitate reading the graduations on the scale ring during optical focusing, a mark 101 is typically provided on the outer surface of the lens barrel 10. For example... Figure 1 and Figure 2 As shown in the embodiment, the focusing ring 20 is sleeved on the outside of the front seat 11 at one end, and extends into the interior of the rear seat 12 at the other end. A mark 101 is provided on the outer surface of the rear seat 12 at the end near the front seat 11. This design facilitates zeroing on the scale ring.

[0048] like Figure 2 As shown in the embodiment, the outer surface of the rear seat 12 near the front seat 11 is provided with a clearance opening 102. This clearance opening 102 is used to expose part of the scale on the scale ring outside the rear seat 12, and the mark 101 is located at the edge of the clearance opening 102. This makes it convenient for the user to accurately and quickly read the scale on the scale ring by referring to the mark 101.

[0049] like Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, the lens barrel assembly includes a first scale ring 301 and a second scale ring 302. The outer surface of the first scale ring 301 has a first scale, and the outer surface of the second scale ring 302 has a second scale. The scale units of the second scale and the first scale are different, including metric and imperial scales. The first scale ring 301 can be detachably connected to the focusing ring 20 via a positioning component 40, and the second scale ring 302 can be detachably connected to the focusing ring 20 via the positioning component 40. That is to say, the first scale can be, but is not limited to, a metric scale, and the second scale can be, but is not limited to, an imperial scale.

[0050] The number of the first scale ring 301 and the second scale ring 302 in the above-mentioned lens barrel assembly can be one or more, and no specific limitation is made here.

[0051] For ease of description, in the following text, the scale ring with the first scale among the multiple scale rings will be referred to as the first scale ring 301, and the scale ring with the second scale will be referred to as the second scale ring 302. The lens barrel assembly including a first scale ring 301 and a second scale ring 302 will be used as an example for explanation.

[0052] The structure of the positioning component 40 is described below.

[0053] like Figure 1 and Figure 2As shown, in this embodiment, the positioning component 40 includes a support ring 41, a first fastener 42, and a second fastener 43. The support ring 41 is provided with a mounting groove 411, which extends circumferentially along the support ring 41. The first fastener 42 passes through the mounting groove 411 and is screwed to the focusing ring 20. The second fastener 43 can pass through the first scale ring 301 and be detachably connected to the focusing ring 20.

[0054] The first fastener 42 serves to connect the bearing ring 41 and the focusing ring 20, and the second fastener 43 serves to connect the scale ring and the focusing ring 20.

[0055] The first fastener 42 can be a bolt or a screw, and the second fastener 43 can be a bolt or a screw. The structure of the first fastener 42 and the second fastener 43 can be the same or different. When the structure of the first fastener and the second fastener 43 is the same, the model of the first fastener 42 and the second fastener 43 can be the same or different.

[0056] With the above settings, when replacing the scale ring, it is not necessary to remove the bearing ring 41. The scale ring can be removed and installed by simply removing and installing the second fastener 43. This improves the assembly efficiency of the scale ring during replacement.

[0057] In this embodiment, the positioning component 40 not only serves to assemble and fix the components, but also to position them. That is, when assembling the other scale ring with the focusing ring 20, the user can quickly position and orient the scale ring and the focusing ring 20 according to the position of the bearing ring 41, reducing the risk of misaligned assembly of the scale ring and providing a foolproof design.

[0058] With the above settings, when replacing the scale ring that is compatible with the focusing ring 20, it is not necessary to separate the carrier ring 41 from the focusing ring 20. At this time, the carrier ring 41 is fixed relative to the focusing ring 20 by the first fastener 42. The user can assemble and disassemble the scale ring and the focusing ring 20 by simply removing and installing the second fastener 43, which reduces assembly efficiency. At the same time, when assembling and adapting another scale ring with the focusing ring 20, the carrier ring 41 can serve as a positioning mark 101. In this way, the assembly efficiency of the scale ring and the focusing ring 20 is further improved when replacing the scale ring.

[0059] like Figure 1 and Figure 2 As shown, in this embodiment, the scale ring is provided with a relief groove 310 adapted to the support ring 41. The relief groove 310 extends circumferentially along the support ring 41 and is used to accommodate the support ring 41. The groove sidewall of the relief groove 310 in the circumferential direction of the support ring 41 is used to restrict the rotation of the scale ring relative to the focusing ring 20.

[0060] With the above configuration, the scale ring can be quickly positioned via the clearance groove 310 when replacing the scale ring, thereby further improving the assembly efficiency of the scale ring and the support ring 41. Moreover, when the support ring 41 and the focusing ring 20 are fixed by the first fastener 42, the clearance groove 310 restricts the relative rotation of the support ring 41 and the focusing ring 20, and the first fastener 42 restricts the relative movement of the support ring 41 and the focusing ring 20 in the axial direction of the focusing ring 20, so that the support ring 41 and the focusing ring 20 are relatively fixed. Thus, even when the scale ring is removed by the second fastener 43, the support ring 41 can still be relatively fixed relative to the focusing ring 20. This is beneficial to further improve the positioning accuracy of the scale ring and the focusing ring 20 during the scale ring replacement process.

[0061] like Figure 2 As shown, in this embodiment, the end face of the focusing ring 20 is provided with a plurality of threaded holes 21, which are arranged at intervals along the circumference of the focusing ring 20. Some of the threaded holes 21 are used to be screwed with the first fastener 42, and some of the threaded holes 21 are used to be screwed with the second fastener 43.

[0062] The aforementioned threaded holes 21 may be arranged at equal intervals along the circumference of the focusing ring 20, but are not limited to.

[0063] The position and size of the threaded hole 21 are matched with the model of the corresponding first fastener 42 and second fastener 43, and are not specifically limited here.

[0064] This simplifies the manufacturing process of the threaded hole 21 on the focusing ring 20, thereby reducing the manufacturing cost of the threaded hole 21 on the focusing ring 20.

[0065] The structure of the first scale ring 301 is the same as that of the second scale ring 302. The following text will use the structure of the first scale ring 301 as an example to explain the structure of the scale ring.

[0066] like Figure 2 and Figure 4 As shown, in this embodiment, the first scale ring 301 includes a cylinder 31 and a flange 32. The flange 32 extends from the inner wall of the cylinder 31 toward the center of the cylinder 31 and is located at the end of the cylinder 31 in the axial direction. The flange 32 is provided with a relief groove 310 and an adjustment groove 33. The adjustment groove 33 extends along the circumference of the cylinder 31. The second fastener 43 passes through the adjustment groove 33 and is connected to the focusing ring 20.

[0067] With the above-described configuration, different sizes of focusing rings 20 can be adapted simply by changing the structure of the flange 32. This facilitates the preparation and processing of the first scale ring 301 and helps to save on the manufacturing cost of the first scale ring 301. Simultaneously, an adjustment groove 33 extending circumferentially along the focusing ring 20 is provided on the flange 32. Thus, when the first scale ring 301 is assembled with the focusing ring 20, the second fastener 43 can move within the adjustment groove 33, facilitating screwing into the threaded hole 21 on the focusing ring 20.

[0068] like Figure 4 As shown, in this embodiment, the clearance groove 310 extends through the flange 32 along the axial direction of the cylinder 31. In this way, during the assembly process of the first scale ring 301 and the focusing ring 20, the sidewall of the clearance groove 310 can play a certain guiding role, further improving the assembly efficiency and assembly accuracy of the first scale ring 301 and the focusing ring 20.

[0069] like Figure 4 As shown, in some embodiments, there are multiple flanges 32, which are arranged at intervals along the circumference of the cylinder 31, wherein the space between two adjacent flanges 32 forms a clearance groove 310.

[0070] Compared to setting an annular structure or an open annular structure flange 32 on the inner wall of the cylinder 31, the above-mentioned arrangement allows the first scale ring 301 and the focusing ring 20 to be firmly connected, while saving the use of the second fastener 43, thus achieving the goal of balancing a firm connection and cost reduction.

[0071] like Figure 4 and Figure 7 As shown, in this embodiment, the outer surface of the first scale ring 301 is provided with an anti-slip structure 34, which is arranged along the circumference of the first scale ring 301; the outer surface of the second scale ring 302 is also provided with an anti-slip structure 34, which is arranged along the circumference of the second scale ring 302.

[0072] The aforementioned anti-slip structure 34 refers to a structure disposed on the outer surface of the first scale ring 301 and the second scale ring 302 to provide an anti-slip function. This anti-slip structure 34 can be a ring-shaped toothed mechanism, with the toothed grooves extending along the axial direction of the first scale ring 301 or the second scale ring 302. Of course, the anti-slip structure 34 can also be a microstructure composed of grooves and protrusions, or the outer surface of the first scale ring 301 or the second scale ring 302 can be frosted, etc., without specific limitations here.

[0073] By providing an anti-slip structure 34 on the outer surface of the first scale ring 301 and the second scale ring 302, the friction between the user and the first scale ring 301 or the second scale ring 302 is increased when the user rotates the first scale ring 301 or the second scale ring 302, thereby improving the accuracy of the rotation of the scale ring 30 and the first scale ring 301 or the second scale ring 302.

[0074] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lens barrel assembly for an optical lens, characterized in that, include: Lens tube (10); The focusing ring (20) is rotatable relative to the lens barrel (10) about the axis of the lens barrel (10); Multiple scale rings, which can be fitted onto the outside of the focusing ring (20), the outer surface of the scale rings is provided with scales, and the scale units on at least two of the scale rings are different; Positioning component (40), wherein the scale ring is detachably connected to the focusing ring (20) via the positioning component (40); The focusing ring (20) is fixed relative to one of the scale rings via the positioning component (40).

2. The lens barrel assembly according to claim 1, characterized in that, The positioning component (40) includes a support ring (41), a first fastener (42), and a second fastener (43). The support ring (41) is provided with a mounting groove (411) that extends circumferentially along the support ring (41). The first fastener (42) passes through the mounting groove (411) and is screwed to the focusing ring (20). The second fastener (43) can pass through the scale ring and be detachably connected to the focusing ring (20).

3. The lens barrel assembly according to claim 2, characterized in that, The scale ring is provided with a relief groove (310) adapted to the support ring (41). The relief groove (310) extends circumferentially along the support ring (41) and is used to accommodate the support ring (41). The groove sidewall of the relief groove (310) in the circumferential direction of the support ring (41) is used to restrict the rotation of the scale ring relative to the focusing ring (20).

4. The lens barrel assembly according to claim 3, characterized in that, The graduated ring includes a cylindrical body (31) and a flange (32), the flange (32) extending from the inner wall of the cylindrical body (31) toward the center of the cylindrical body (31), and the flange (32) being located at the end of the cylindrical body (31) in the axial direction; The flange (32) is provided with the clearance groove (310), and the flange (32) is provided with the adjustment groove (33). The adjustment groove (33) extends circumferentially along the cylinder (31), and the second fastener (43) passes through the adjustment groove (33) and is connected to the focusing ring (20).

5. The lens barrel assembly according to claim 4, characterized in that, The clearance groove (310) extends through the flange (32) along the axial direction of the cylinder (31).

6. The lens barrel assembly according to claim 4, characterized in that, The number of flanges (32) is multiple, and the multiple flanges (32) are arranged at intervals along the circumference of the cylinder (31), wherein the space between two adjacent flanges (32) forms the clearance groove (310).

7. The lens barrel assembly according to any one of claims 1 to 6, characterized in that, The outer surface of the scale ring is provided with an anti-slip structure (34), which is arranged along the circumference of the scale ring.

8. The lens barrel assembly according to any one of claims 2 to 6, characterized in that, The end face of the focusing ring (20) is provided with a plurality of threaded holes (21), which are arranged at intervals along the circumference of the focusing ring (20). A portion of the threaded holes (21) are used to be screwed to the first fastener (42), and a portion of the threaded holes (21) are used to be screwed to the second fastener (43).

9. The lens barrel assembly according to any one of claims 1 to 6, characterized in that, The lens barrel assembly includes a first scale ring (301)(30) and a second scale ring (302)(30). The outer surface of the first scale ring (301)(30) is provided with metric scale, and the outer surface of the second scale ring (302)(30) is provided with imperial scale.

10. A camera module, characterized in that, Includes the lens barrel assembly as described in any one of claims 1-9, An optical lens (200) includes a plurality of lenses, at least a portion of which are fixed to a focusing ring (20) in the lens barrel assembly.

Images