Focusing assembly, lens and camera

Abstract

The utility model relates to the field of camera equipment, and provides a focusing assembly, a lens and a camera. The focusing assembly comprises an outer cover lens barrel, a rotating lens barrel and a graduated drum. A display window penetrates through the outer cover lens barrel. The rotating lens barrel comprises a main barrel body and a focusing ring, and the periphery of the main barrel body is provided with a positioning convex part. The graduated cylinder is sleeved between the main cylinder body and the outer cover lens cone, and the graduated cylinder rotates synchronously along with the rotating lens cone. And a first scale and a second scale which are sequentially arranged in the axial direction and have different measurement units are arranged on the peripheral surface of the graduated drum. The inner circumferential surface of the graduated drum is provided with a positioning groove which extends along the axial direction of the graduated drum and has two through ends; and the positioning convex part is matched in the positioning groove. The two opposite ends of the positioning groove can be close to the focusing ring in a switchable mode so that the first scale and the second scale can be exposed in the display window in a switchable mode. According to the focusing assembly, a photographer can conveniently and quickly switch and use the focusing scales of two different measurement units, the use performance and the use convenience of the focusing assembly can be improved, and the application range of the focusing assembly can be expanded.

Description

Technical Field

[0001] This application belongs to the technical field of imaging devices, and particularly relates to a focusing component, a lens, and a camera. Background Art

[0002] The focusing component of a lens is responsible for achieving focus by adjusting the positions of the lenses inside the lens, so as to make the photographed subject clearly presented in the photo, that is, to ensure the clarity of the photo. The focusing component usually has a focusing scale with a unified measurement unit. The focusing scale can help the photographer master the focusing state, improve the shooting quality, and determine the focusing distance. However, the focusing scale with a unified measurement unit cannot meet the usage requirements of different photographers, resulting in poor usage performance and convenience of the focusing component and the lens, and a small applicable range. Summary of the Utility Model

[0003] Embodiments of this application provide a focusing component, a lens, and a camera, aiming to solve the problem that the focusing scale with a unified measurement unit cannot meet the usage requirements of different photographers, resulting in poor usage performance and convenience of the focusing component and the lens, and a small applicable range.

[0004] To achieve the above object, the technical solution adopted in the embodiments of this application is as follows:

[0005] In a first aspect, a focusing component is provided, including:

[0006] An outer cover lens barrel, the barrel wall of the outer cover lens barrel is penetrated with a display window;

[0007] A rotating lens barrel, including a main barrel body and a focusing ring provided at one end of the main barrel body. The main barrel body is sleeved inside the outer cover lens barrel, the focusing ring is exposed outside the outer cover lens barrel, and a positioning convex portion is provided on the outer circumference of the main barrel body;

[0008] A scale barrel, sleeved between the main barrel body and the outer cover lens barrel. The scale barrel is connected to the rotating lens barrel and rotates synchronously with the rotating lens barrel; the outer circumferential surface of the scale barrel is provided with a first scale and a second scale which are arranged in sequence along its axial direction and have different measurement units; the inner circumferential surface of the scale barrel is provided with a positioning groove extending along its axial direction and penetrating at both ends, and the positioning convex portion is fitted into the positioning groove; the opposite ends of the positioning groove can be switched to be close to the focusing ring, so that the first scale and the second scale are alternately exposed in the display window.

[0009] In some embodiments, along the circumferential direction of the main barrel body, the installation position of the positioning convex portion relative to the main barrel body is adjustable.

[0010] In some embodiments, the main barrel body is provided with a first hole group, and the first hole group includes a plurality of first through holes arranged at intervals along the circumferential direction of the main barrel body;

[0011] The rotating lens barrel further includes an adjustment base, the positioning convex portion is provided on a side of the adjustment base facing away from the main barrel, the adjustment base is detachably connected to at least one of the first through holes by a first fastener, and the installation position of the adjustment base in the first hole group is adjustable.

[0012] In some embodiments, the adjustment base is provided with an adjustment groove, the adjustment groove extends along the circumferential direction of the main barrel and penetrates along the depth direction of its own groove, and the adjustment groove is connected to at least one of the first through holes by the first fastener.

[0013] In some embodiments, a receiving groove is provided on the outer peripheral surface of the main barrel, the first hole group is provided at the bottom of the receiving groove, the adjustment base and the first fastener are both received in the receiving groove, and the positioning convex portion protrudes from the notch of the receiving groove.

[0014] In some embodiments, the positioning convex portion is a plastic part.

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

[0016] In some embodiments, at least one second hole group is provided at one end of the main barrel close to the focusing ring, and the second hole group includes a plurality of second through holes arranged at intervals along the circumferential direction of the main barrel;

[0017] The scale barrel has a first end and a second end opposite to each other along its axis, the first end is provided with a plurality of third through holes arranged at intervals along the circumferential direction of the scale barrel, the second end is provided with a plurality of fourth through holes arranged at intervals along the circumferential direction of the scale barrel, and the first end and the second end can be selectively close to the focusing ring;

[0018] When the first end is close to the focusing ring, at least one of the third through holes and the second through hole arranged in alignment with it are connected by a second fastener;

[0019] When the second end is close to the focusing ring, at least one of the fourth through holes and the second through hole arranged in alignment with it are connected by a second fastener.

[0020] In a second aspect, a lens is provided, including the focusing component provided in the embodiments of the present application.

[0021] In a third aspect, a camera is provided, including the lens provided in the embodiments of the present application.

[0022] The beneficial effects of the focusing component provided by the present application are as follows:

[0023] The focusing component provided by the embodiment of the present application enables the photographer to conveniently and quickly disassemble and assemble the scale cylinder during use, and select to install different ends of the positioning groove close to the focusing ring, so as to expose the first scale or the second scale in the display window. Based on this, it is convenient for the photographer to switch between the first scale and the second scale with different measurement units according to their own usage needs, so as to help themselves master the focusing state, improve the shooting quality, and determine the focusing distance, thereby meeting the usage needs of different photographers, improving the usage performance, convenience, flexibility and applicability of the focusing component and the lens, and expanding the applicable range of the focusing component and the lens. Moreover, the switching operation between the first scale and the second scale is simple and fast, without relying on external tools or external devices, and without complex operation steps, thus improving the convenience and usage experience of the focusing component. Description of the Drawings

[0024] In order to clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 Stereoscopic schematic diagram of the focusing component provided by some embodiments of the present application;

[0026] Figure 2 For Figure 1 Exploded schematic diagram of the provided focusing component;

[0027] Figure 3 For Figure 1 Top view of the provided focusing component;

[0028] Figure 4 For Figure 3 Cross-sectional view along A-A of the provided;

[0029] Figure 5 For Figure 1 Front view of the provided focusing component, wherein the first scale is exposed in the display window;

[0030] Figure 6 Front view of the focusing component provided by some other embodiments of the present application, wherein the second scale is exposed in the display window;

[0031] Figure 7 Structural schematic diagram of the rotating barrel and the first fastener provided by some embodiments of the present application;

[0032] Figure 8Exploded schematic view of a rotating barrel, a scale barrel, and a second fastener provided by some embodiments of the present application.

[0033] Among them, the reference numerals in the figure are as follows:

[0034] 10 - outer cover barrel, 11 - display window, 12 - indication mark; 20 - rotating barrel, 21 - main barrel body, 211 - first hole group, 2111 - first through hole, 212 - receiving groove, 213 - second hole group, 2131 - second through hole, 22 - focusing ring, 23 - positioning convex part, 24 - adjustment seat, 241 - adjustment groove; 30 - scale barrel, 31 - first scale, 32 - second scale, 33 - positioning groove, 34 - first end, 341 - third through hole, 35 - second end, 351 - fourth through hole; 40 - first fastener, 50 - second fastener. Detailed implementation manners

[0035] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present application clear and understandable, the present application will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Without special instructions, all implementation manners and optional implementation manners of the present application can be combined with each other to form a new technical solution. Without special instructions, all technical features and optional technical features of the present application can be combined with each other to form a new technical solution.

[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0038] In this application, unless otherwise clearly specified and defined, terms such as "install", "connect", "link", "fix", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In this application, "axial direction" refers to the extending direction of the central axis of the corresponding structure, and "circumferential direction" refers to the surrounding direction of the outer peripheral surface of the corresponding structure.

[0040] The focusing component of the lens is responsible for achieving focusing by adjusting the positions of the lenses inside the lens, so as to make the photographed subject clearly presented in the photo, that is, to ensure the clarity of the photo. The focusing component is usually provided with focusing scales of a unified measurement unit, and the focusing scales can help the photographer master the focusing state, improve the shooting quality, and determine the focusing distance. The focusing distance is the distance between the lens and the object to be photographed.

[0041] However, the focusing scales of a unified measurement unit cannot meet the usage requirements of different photographers, resulting in poor usage performance and convenience of the focusing component and the lens, and a small applicable range.

[0042] Therefore, the embodiments of this application provide a focusing component, which can enable the photographer to conveniently and quickly switch between focusing scales of two different measurement units, can meet the usage requirements of different photographers, thereby improving the usage performance, convenience, flexibility and applicability of the focusing component and the lens, and can expand the applicable range of the focusing component and the lens.

[0043] The following describes the specific implementation of this application in detail in combination with specific embodiments:

[0044] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4, some embodiments of the present application provide a focusing assembly, including an outer cover barrel 10, a rotating barrel 20 and a scale barrel 30. A display window 11 is penetrated through the barrel wall of the outer cover barrel 10. The rotating barrel 20 includes a main barrel body 21 and a focusing ring 22 provided at one end of the main barrel body 21. The main barrel body 21 is sleeved inside the outer cover barrel 10, and the focusing ring 22 is exposed outside the outer cover barrel 10. A positioning convex portion 23 is provided on the outer periphery of the main barrel body 21. The scale barrel 30 is sleeved between the main barrel body 21 and the outer cover barrel 10, and the scale barrel 30 is connected to the rotating barrel 20 and rotates synchronously with the rotating barrel 20. The outer peripheral surface of the scale barrel 30 is provided with a first scale 31 and a second scale 32 which are arranged in sequence along its axial direction and have different measurement units. The inner peripheral surface of the scale barrel 30 is provided with a positioning groove 33 which extends along its axial direction and penetrates at both ends, and the positioning convex portion 23 is fitted into the positioning groove 33. Please refer to Figure 5 , Figure 6 , the opposite ends of the positioning groove 33 can be switched to approach the focusing ring 22, so that the first scale 31 and the second scale 32 are switched to be exposed in the display window 11.

[0045] It should be noted that the main barrel body 21 of the rotating barrel 20, the scale barrel 30 and the outer cover barrel 10 are coaxially sleeved from the inside to the outside in sequence. The focusing ring 22 of the rotating barrel 20 is integrally connected or separately connected to one end of the main barrel body 21 along its own axial direction. The focusing ring 22 is located at the end side of the scale barrel 30 and the outer cover barrel 10 and is exposed. The scale barrel 30 is directly connected to the rotating barrel 20 or indirectly connected via other components, so that the scale barrel 30 can rotate synchronously with the rotating barrel 20. Based on this, the photographer can hold and rotate the focusing ring 22 to drive the rotating barrel 20 and the scale barrel 30 to rotate relative to the outer cover barrel 10. Among them, during the synchronous rotation of the rotating barrel 20 and the scale barrel 30, the outer cover barrel 10 does not rotate with the rotating barrel 20 and the scale barrel 30. Among them, the rotating barrel 20 can drive the lens in the lens to axially move by rotation to achieve the focusing function.

[0046] It should also be noted that the scale barrel 30 is a cylindrical structure for setting focusing scales. The outer peripheral surface of the scale barrel 30 is provided with a first scale 31 and a second scale 32. The measurement units of the first scale 31 and the second scale 32 are different (for example, one scale uses metric units and the other uses imperial units). The first scale 31 and the second scale 32 are arranged in sequence along the axial direction of the scale barrel 30 (they can be arranged at intervals). The first scale 31 and the second scale 32 respectively include a plurality of scale values and scale lines arranged at intervals along the circumferential direction of the scale barrel 30. Both the first scale 31 and the second scale 32 are focusing scales, which can help the photographer master the focusing state, improve the shooting quality and determine the focusing distance. The focusing distance is the distance between the lens and the object to be photographed.

[0047] The outer cover lens barrel 10 is provided with a display window 11, and the display window 11 penetrates through the barrel wall of the outer cover lens barrel 10. The display window 11 is arranged to extend along the circumferential direction of the outer cover lens barrel 10. The shape of the display window 11 can be, but is not limited to, a kidney shape, a rectangle, etc. The dimensions such as the length and width of the display window 11 can be set as required. The display window 11 can be used to expose any one of the first scale 31 and the second scale 32, while the other one of the first scale 31 and the second scale 32 will be hidden inside the barrel wall of the outer cover lens barrel 10. That is, the photographer can, according to the usage requirements, select any one of the first scale 31 and the second scale 32 to be exposed in the display window 11, so as to use the focus scale of the required measurement unit to help himself master the focus state, improve the shooting quality, and determine the focus distance.

[0048] It should also be noted that a positioning convex portion 23 is provided on the outer periphery of the main barrel body 21. The positioning convex portion 23 can be detachably connected or integrally connected to the outer periphery of the main barrel body 21. The positioning convex portion 23 protrudes from the outer peripheral surface of the main barrel body 21. The positioning convex portion 23 can be, but is not limited to, a convex column.

[0049] A positioning groove 33 is provided on the inner peripheral surface of the scale barrel 30. The positioning groove 33 is arranged to extend along the axial direction of the scale barrel 30, and the positioning groove 33 is through along its extending direction, that is, both ends of the positioning groove 33 along the axial direction of the scale barrel 30 are communicated and penetrate to the outside of the scale barrel 30. During the assembly process of the scale barrel 30 and the main barrel body 21, the positioning convex portion 23 can slide into the positioning groove 33 from any one end of the positioning groove 33. In the case where the scale barrel 30 is sleeved outside the main barrel body 21, the positioning convex portion 23 is in limit fit with the positioning groove 33 to position the relative circumferential positions of the scale barrel 30 and the main barrel body 21, and restrict the circumferential rotation of the scale barrel 30 relative to the main barrel body 21.

[0050] Based on the fact that both ends of the positioning groove 33 are through, the opposite ends of the positioning groove 33 can be switched to be close to the focus ring 22, so that the first scale 31 and the second scale 32 are switched to be exposed in the display window 11. That is, the photographer can disassemble and assemble the scale barrel 30 during use, and select to install different ends of the positioning groove 33 close to the focus ring 22 to realize exposing the first scale 31 or the second scale 32 in the display window 11, that is, realize the switching between the first scale 31 and the second scale 32.

[0051] For example, in some application scenarios, the scale cylinder 30 can be first detached from the outer periphery of the rotating lens barrel 20, and then the end of the positioning groove 33 that is relatively close to the first scale 31 and relatively far from the second scale 32 is brought close to the focusing ring 22 for installation. Then, the outer lens barrel 10 is sleeved on the outer periphery of the scale cylinder 30 to expose the first scale 31 in the display window 11; conversely, the scale cylinder 30 can be first detached from the outer periphery of the rotating lens barrel 20, and then the end of the positioning groove 33 that is relatively close to the second scale 32 and relatively far from the first scale 31 is brought close to the focusing ring 22 for installation. Then, the outer lens barrel 10 is sleeved on the outer periphery of the scale cylinder 30 to expose the second scale 32 in the display window 11. Of course, in some other application scenarios, it may be that "the end of the positioning groove 33 that is relatively close to the first scale 31 and relatively far from the second scale 32 is brought close to the focusing ring 22 for installation" corresponding to "the second scale 32 is exposed in the display window 11", or it may be that "the end of the positioning groove 33 that is relatively close to the second scale 32 and relatively far from the first scale 31 is brought close to the focusing ring 22 for installation" corresponding to "the first scale 31 is exposed in the display window 11".

[0052] In summary, the focusing component provided by the embodiment of the present application enables the photographer to conveniently and quickly disassemble and assemble the scale cylinder 30 during use, and select different ends of the positioning groove 33 to be close to the focusing ring 22 for installation, so as to expose the first scale 31 or the second scale 32 in the display window 11. Based on this, it is convenient for the photographer to switch between the first scale 31 and the second scale 32 with different measurement units according to their own usage needs, so as to help themselves master the focusing state, improve the shooting quality, and determine the focusing distance, thereby meeting the usage needs of different photographers, improving the usage performance, convenience, flexibility and applicability of the focusing component and the lens, and expanding the applicable range of the focusing component and the lens. Moreover, the switching operation between the first scale 31 and the second scale 32 is simple and fast, without relying on external tools or external devices, and without complex operation steps, thus improving the usage convenience and experience of the focusing component.

[0053] In some embodiments, the outer lens barrel 10 is provided with an indication mark 12, and the indication mark 12 is arranged on one side of the display window 11 along the axial direction of the outer lens barrel 10. The indication mark 12 is used to indicate the current value of the first scale 31 or the second scale 32 exposed in the display window 11 to represent the current focus value of the lens. The indication mark 12 can be, but is not limited to, an arrow, a scale line, etc. For the focus component provided in this embodiment, regardless of whether the photographer switches to use the first scale 31 or the second scale 32, in the initial state (i.e., the state without focus adjustment), the indication mark 12 will align and indicate the initial value of the first scale 31 or the second scale 32 exposed in the display window 11 (generally the INF (Infinity) value), without the need for the photographer to adjust. It has been designed and adjusted before leaving the factory, so as to improve the convenience of switching operation between the first scale 31 and the second scale 32, and can take into account improving the focus accuracy and usability of the focus component.

[0054] Please refer to Figure 1 , Figure 2 , Figure 7 , in some embodiments of the present application, along the circumferential direction of the main cylinder body 21, the installation position of the positioning convex portion 23 relative to the main cylinder body 21 is adjustable.

[0055] It should be noted that the positioning convex portion 23 can be directly detachably connected to the main cylinder body 21, or can be indirectly detachably connected to the main cylinder body 21 via other components. Along the circumferential direction of the main cylinder body 21, the installation position of the positioning convex portion 23 relative to the main cylinder body 21 is adjustable.

[0056] By adopting the above solution, the installation position of the positioning convex portion 23 relative to the main cylinder body 21 can be adjusted circumferentially along the main cylinder body 21, so as to adjust the position of the positioning convex portion 23 before leaving the factory, and thus realize the adjustment of the installation angle deviation of the rotating lens barrel 20 relative to the scale barrel 30. Based on this, before leaving the factory, if there is an installation angle deviation of the rotating lens barrel 20 due to processing errors or assembly tolerances, the position of the positioning convex portion 23 can be adjusted, so that in the case where the positioning convex portion 23 is in limit and positioning fit with the positioning groove 33, no matter which end of the positioning groove 33 is close to the focus ring 22 for installation, the indicating mark 12 is corrected and aligned to indicate "the initial value (such as the INF value) of the first scale 31 or the second scale 32 exposed in the display window 11" in the initial state of the focusing assembly. Thus, the installation angle deviation of the rotating lens barrel 20 can be corrected, and the focusing accuracy of the focusing assembly can be maintained and improved. This adjustment and correction work can be completed before leaving the factory, so that after leaving the factory and during the use by the photographer, no matter whether the photographer switches to use the first scale 31 or the second scale 32, the indicating mark 12 will be aligned to indicate the initial value of the first scale 31 or the second scale 32 exposed in the display window 11 without the need for the photographer to adjust. Therefore, on the basis of maintaining the focusing accuracy of the focusing assembly, the adjustment operation of the photographer can be omitted, the switching operation convenience of the first scale 31 and the second scale 32 can be improved, and the use performance, use convenience and use flexibility of the focusing assembly can be improved.

[0057] Of course, in other embodiments, if it is possible to make the indicating mark 12 aligned to indicate "the initial value of the first scale 31 or the second scale 32 exposed in the display window 11" in the initial state of the focusing assembly based on high-precision processing or other correction designs in the case where the positioning convex portion 23 is in limit and positioning fit with the positioning groove 33, no matter which end of the positioning groove 33 is close to the focus ring 22 for installation, then the positioning convex portion 23 can be fixed to the outer circumference of the main cylinder body 21.

[0058] Please refer to Figure 1 、 Figure 2 、 Figure 7 In some embodiments of the present application, the main cylinder body 21 is provided with a first hole group 211, and the first hole group 211 includes a plurality of first through holes 2111 arranged at intervals circumferentially along the main cylinder body 21. The rotating lens barrel 20 further includes an adjustment seat 24, the positioning convex portion 23 is arranged on the side of the adjustment seat 24 facing away from the main cylinder body 21, the adjustment seat 24 is detachably connected to at least one first through hole 2111 through a first fastener 40, and the installation position of the adjustment seat 24 in the first hole group 211 is adjustable.

[0059] It should be noted that the main cylinder 21 is provided with a first hole group 211 in the area for mounting the positioning protrusion 23. The first hole group 211 includes a plurality of first through holes 2111. The first through holes 2111 are arranged through the cylinder wall of the main cylinder 21. The first through holes 2111 of the first hole group 211 are distributed at intervals along the circumference of the main cylinder 21. Among them, the first through holes 2111 of the first hole group 211 can be distributed at equal intervals or at unequal intervals. The first through holes 2111 can be, but are not limited to, circular holes, rectangular holes, etc. The number of the first through holes 2111 of the first hole group 211 is set as required.

[0060] The adjustment seat 24 is used to install the positioning protrusion 23. The positioning protrusion 23 is arranged on the side of the adjustment seat 24 away from the main cylinder 21, and the positioning protrusion 23 can be connected to the adjustment seat 24 in a separate body or in an integral body. The adjustment seat 24 can be in the shape of a plate, a block, etc. but is not limited to it.

[0061] The adjustment seat 24 can be detachably connected to one or more first through holes 2111 of the first hole group 211 via the first fastener 40. The first fastener 40 can be, but is not limited to, a screw, a buckle, a plug buckle, etc. In some embodiments, the first fastener 40 can be integrally connected to the adjustment seat 24. In this case, the adjustment seat 24 can omit the slot or hole for the first fastener 40 to pass through. In other embodiments, the first fastener 40 is separately connected to the adjustment seat 24. In this case, the adjustment seat 24 will be provided with a slot or hole for the first fastener 40 to pass through.

[0062] By adopting the above scheme, the positioning protrusion 23 can be arranged on the side of the adjustment seat 24 away from the main cylinder 21, and the adjustment seat 24 can be detachably connected to part of the first through holes 2111 of the first hole group 211 via the first fastener 40, so that the positioning protrusion 23 can be indirectly detachably connected to the outer periphery of the main cylinder 21 via the adjustment seat 24, thereby improving the installation convenience and installation reliability of the positioning protrusion 23.

[0063] Based on the setting of this embodiment, the first fastener 40 can be disassembled and assembled, and the adjustment seat 24 can be connected to different first through holes 2111 to adjust the installation position of the adjustment seat 24 relative to the first hole group 211, and the adjustment range of the installation position of the adjustment seat 24 includes the setting range of the first hole group 211. Based on this, it is convenient to adjust the installation position of the positioning convex portion 23 along the circumferential direction of the main cylinder 21. In particular, it is convenient to calibrate the position of the positioning convex portion 23 before leaving the factory, so that the installation angle deviation of the rotating lens barrel 20 relative to the scale barrel 30 can be calibrated. That is, before leaving the factory, if there is an installation angle deviation of the rotating lens barrel 20 due to processing errors and assembly tolerances, the installation position of the adjustment seat 24 relative to the first hole group 211 can be adjusted to calibrate the position of the positioning convex portion 23. In the case where the positioning convex portion 23 is limited and positioned in cooperation with the positioning groove 33, no matter which end of the positioning groove 33 is close to the focusing ring 22 for installation, the indicating mark 12 is corrected and aligned to indicate the initial value (for example, the INF value) of the first scale 31 or the second scale 32 exposed in the display window 11 in the initial state of the focusing component. Thus, the installation angle deviation of the rotating lens barrel 20 can be corrected, and the focusing accuracy of the focusing component can be maintained and improved. This calibration and correction work can be completed before leaving the factory, so that after leaving the factory and during the use by the photographer, no matter whether the photographer switches to use the first scale 31 or the second scale 32, the indicating mark 12 will be aligned to indicate the initial value of the first scale 31 or the second scale 32 exposed in the display window 11 without the need for the photographer to calibrate. Thus, on the basis of maintaining the focusing accuracy of the focusing component, the calibration operation of the photographer can be omitted, the switching operation convenience of the first scale 31 and the second scale 32 can be improved, and the use performance, use convenience, and use flexibility of the focusing component can be improved.

[0064] Moreover, since the installation angle deviation of the rotating lens barrel 20 can be corrected, the rotating lens barrel 20 has a certain error tolerance, that is, the rotating lens barrel 20 can be compatible with and tolerate an appropriate amount of processing errors and assembly errors. Based on this, the processing convenience and the yield rate of the rotating lens barrel 20 can be improved, and the scrap rate and the repair rate of the rotating lens barrel 20 can be reduced.

[0065] Of course, in other embodiments, other structural designs can be adopted to realize the adjustment of the installation position of the positioning convex portion 23 along the circumferential direction of the main cylinder 21. For example, the positioning convex portion 23 can be directly detachably connected to the first through hole 2111, or the first hole group 211 can be changed to a strip groove design.

[0066] Please refer to Figure 1 、 Figure 2 、 Figure 7, in some embodiments of the present application, the adjustment base 24 is provided with an adjustment groove 241. The adjustment groove 241 extends along the circumferential direction of the main cylinder 21 and penetrates along the depth direction of its own groove. The adjustment groove 241 is connected to at least one first through hole 2111 through a first fastener 40.

[0067] It should be noted that the adjustment base 24 is provided with an adjustment groove 241. The adjustment groove 241 extends along the circumferential direction of the main cylinder 21, and the adjustment groove 241 penetrates the adjustment base 24 along the depth direction of its own groove. The adjustment groove 241 can be detachably connected to one or more first through holes 2111 aligned with it via a first fastener 40.

[0068] By adopting the above scheme, the installation position of the adjustment base 24 relative to the first hole group 211 can be roughly adjusted and finely adjusted by disassembling and assembling the first fastener 40, adjusting the position of the adjustment groove 241, and connecting different regions of the adjustment groove 241 to different first through holes 2111. Based on this, the adjustment range and adjustment accuracy of the installation position of the adjustment base 24 relative to the first hole group 211 can be improved, the position of the positioning convex portion 23 can be accurately calibrated before leaving the factory, and the installation angle deviation of the rotating lens barrel 20 can be accurately corrected before leaving the factory, thereby improving the focusing accuracy of the focusing component.

[0069] Of course, in other embodiments, the adjustment groove 241 can be changed to a through hole design; or, in the case where the first fastener 40 is integrally connected to the adjustment base 24, the adjustment base 24 can omit the adjustment groove 241 or the through hole for the first fastener 40 to pass through.

[0070] Please refer to Figure 1 、 Figure 2 、 Figure 7 , in some embodiments of the present application, the outer peripheral surface of the main cylinder 21 is provided with a receiving groove 212. The first hole group 211 is provided at the bottom of the receiving groove 212. The adjustment base 24 and the first fastener 40 are both received in the receiving groove 212, and the positioning convex portion 23 protrudes from the notch of the receiving groove 212.

[0071] It should be noted that a receiving groove 212 is provided at the position of the outer peripheral surface of the main cylinder 21 corresponding to the first hole group 211. Each first through hole 2111 of the first hole group 211 is opened at the bottom of the receiving groove 212 and penetrates the bottom of the receiving groove 212. In the case where the adjustment base 24 is connected to at least one first through hole 2111 via a first fastener 40, the adjustment base 24 and the first fastener 40 can be received in the receiving groove 212 and basically do not protrude from the notch of the receiving groove 212, and only the positioning convex portion 23 provided on the side of the adjustment base 24 away from the main cylinder 21 protrudes from the notch of the receiving groove 212.

[0072] By adopting the above solution, when the adjustment base 24 is connected to a part of the first through hole 2111 via the first fastener 40, the adjustment base 24 and the first fastener 40 can be received in the receiving groove 212 and basically do not protrude from the notch of the receiving groove 212, and only the positioning convex part 23 provided on the side of the adjustment base 24 away from the main cylinder 21 protrudes from the notch of the receiving groove 212. Based on this, while facilitating the cooperation between the positioning convex part 23 and the positioning groove 33, the space occupied by the adjustment base 24 and the first fastener 40 in the radial direction of the main cylinder 21 can be compressed, thereby compressing the radial dimension and volume of the focusing assembly, compacting and optimizing the structural design of the focusing assembly, reducing the space requirements of the focusing assembly and the lens, and facilitating the miniaturization of the focusing assembly and the lens.

[0073] Please refer to Figure 1 、 Figure 2 、 Figure 7 In some embodiments of the present application, the positioning convex part 23 is a plastic part.

[0074] By adopting the above solution, by making the positioning convex part 23 a plastic part, the friction and wear of the positioning convex part 23 can be reduced during the cooperation between the positioning convex part 23 and the positioning groove 33, thereby extending the service life of the rotating lens barrel 20 and the focusing assembly, and improving the use reliability and structural reliability of the rotating lens barrel 20 and the focusing assembly.

[0075] Please refer to Figure 2 、 Figure 5 、 Figure 6 In some embodiments of the present application, the first scale 31 is an imperial scale, and the second scale 32 is a metric scale.

[0076] It should be noted that the first scale 31 is an imperial scale, and the measurement unit of the first scale 31 can be but is not limited to ft (foot). The second scale 32 is a metric scale, and the measurement unit of the second scale 32 can be but is not limited to m (meter).

[0077] By adopting the above solution, the focusing assembly can be switched between imperial scale and metric scale for use, meeting the mainstream use requirements of most photographers, improving the applicability and practicality of the focusing assembly and the lens, and expanding the applicable range of the focusing assembly and the lens.

[0078] Please refer to Figure 1 、 Figure 2 、 Figure 8, in some embodiments of the present application, at least one second hole group 213 is provided at one end of the main cylinder 21 close to the focusing ring 22. The second hole group 213 includes a plurality of second through holes 2131 spaced circumferentially along the main cylinder 21. The scale cylinder 30 has a first end 34 and a second end 35 opposite to each other along its axial direction. A plurality of third through holes 341 are provided at the first end 34 spaced circumferentially along the scale cylinder 30, and a plurality of fourth through holes 351 are provided at the second end 35 spaced circumferentially along the scale cylinder 30. The first end 34 and the second end 35 can be selectively close to the focusing ring 22. When the first end 34 is close to the focusing ring 22, at least one third through hole 341 and the second through hole 2131 arranged in alignment therewith are connected by a second fastener 50. When the second end 35 is close to the focusing ring 22, at least one fourth through hole 351 and the second through hole 2131 arranged in alignment therewith are connected by a second fastener 50.

[0079] It should be noted that at one end of the main cylinder 21 close to the focusing ring 22, a second hole group 213 is provided, and the second hole group 213 can be provided with one or more. When there are multiple second hole groups 213, the multiple second hole groups 213 are spaced circumferentially along the main cylinder 21. The second hole group 213 includes a plurality of second through holes 2131, and the second through holes 2131 penetrate through the wall of the main cylinder 21. The second through holes 2131 of the second hole group 213 are spaced circumferentially along the main cylinder 21. Among them, the second through holes 2131 of the second hole group 213 can be equally spaced or unequally spaced. The second through holes 2131 can be, but are not limited to, circular holes, rectangular holes, etc. The number of the second through holes 2131 of the second hole group 213 is set as required.

[0080] Along the axial direction of the scale cylinder 30, the scale cylinder 30 has opposite first end 34 and second end 35. As the first scale 31 and the second scale 32 are switched, the first end 34 and the second end 35 will be selectively close to the focusing ring 22 for installation.

[0081] A plurality of third through holes 341 are provided at the first end 34, and the third through holes 341 penetrate through the wall of the scale cylinder 30. The plurality of third through holes 341 are spaced circumferentially along the scale cylinder 30. The third through holes 341 can be, but are not limited to, waist-shaped holes, rectangular holes, circular holes, etc. When the first end 34 is close to the focusing ring 22 for installation, each third through hole 341 and each second hole group 213 are on the same circumference. At least one third through hole 341 and the second through hole 2131 arranged in alignment therewith can be connected by a second fastener 50 to stabilize the relative circumferential position and relative axial position between the scale cylinder 30 and the main cylinder 21, so as to facilitate the scale cylinder 30 to rotate synchronously with the rotating lens barrel 20.

[0082] Similarly, the second end 35 is provided with a plurality of fourth through holes 351. The fourth through holes 351 penetrate through the barrel wall of the scale barrel 30. The plurality of fourth through holes 351 are arranged at intervals along the circumferential direction of the scale barrel 30. The fourth through holes 351 can be, but are not limited to, waist-shaped holes, rectangular holes, circular holes, etc. When the second end 35 is close to the focus ring 22 for installation, each of the fourth through holes 351 and each of the second hole groups 213 are on the same circumference. At least one fourth through hole 351 and the second through hole 2131 aligned therewith can be connected by a second fastener 50 to stabilize the relative circumferential position and relative axial position between the scale barrel 30 and the main barrel 21, so as to facilitate the synchronous rotation of the scale barrel 30 with the rotating lens barrel 20.

[0083] Among them, the second fastener 50 can be, but is not limited to, a screw, a buckle, a snap fastener, etc.

[0084] By adopting the above scheme, during the process of the photographer switching to use the first scale 31 or the second scale 32, the first end 34 or the second end 35 of the scale barrel 30 will be switched to be close to the focus ring 22 for installation. Based on this, when the first end 34 is close to the focus ring 22 for installation, at least one third through hole 341 and the second through hole 2131 aligned therewith can be connected via the second fastener 50 to stabilize the relative circumferential position and relative axial position between the scale barrel 30 and the main barrel 21, so as to facilitate the synchronous rotation of the scale barrel 30 with the rotating lens barrel 20. Conversely, when the second end 35 is close to the focus ring 22 for installation, at least one fourth through hole 351 and the second through hole 2131 aligned therewith can be connected via the second fastener 50 to stabilize the relative circumferential position and relative axial position between the scale barrel 30 and the main barrel 21, so as to facilitate the synchronous rotation of the scale barrel 30 with the rotating lens barrel 20. Thus, the connection between the scale barrel 30 and the main barrel 21 can be realized conveniently and quickly, and the connection convenience, connection stability and connection reliability between the scale barrel 30 and the main barrel 21 can be improved.

[0085] As Figure 8 shown, in some embodiments, the third through hole 341 is a waist-shaped hole. With such a setting, the length of the third through hole 341 can be correspondingly extended, the influence of processing errors, assembly errors, calibration operations, etc. on the alignment relationship between the third through hole 341 and the second through hole 2131 can be reduced, and at least one third through hole 341 can be made to be aligned with the second through hole 2131 when the first end 34 is close to the focus ring 22 for installation, so that the connection between the scale barrel 30 and the main barrel 21 has a certain error tolerance.

[0086] As Figure 8As shown, in some embodiments, the fourth through-hole 351 is an oval hole. With such a setting, the length of the fourth through-hole 351 can be correspondingly extended, the influence of machining errors, assembly errors, calibration operations, etc. on the alignment relationship between the fourth through-hole 351 and the second through-hole 2131 can be reduced, and there can be at least one fourth through-hole 351 that can be aligned with the second through-hole 2131 when the second end 35 is close to the focusing ring 22, so that the connection between the scale cylinder 30 and the main cylinder 21 has a certain error tolerance.

[0087] As Figure 8 shown, in some embodiments, the third through-hole 341 is a counterbore. With such a setting, when the second fastener 50 connects the third through-hole 341 and the second through-hole 2131, the second fastener 50 can be urged to sink into and be received in the third through-hole 341, so as to reduce the size of the second fastener 50 protruding from the orifice of the third through-hole 341, or even make the second fastener 50 basically not protrude from the orifice of the third through-hole 341. Based on this, the space occupied by the second fastener 50 in the radial direction of the main cylinder 21 can be compressed, thereby the radial size and volume of the focusing assembly can be compressed, the structural design of the focusing assembly can be compacted and optimized, the space requirements of the focusing assembly and the lens can be reduced, and it is beneficial to the miniaturization of the focusing assembly and the lens.

[0088] As Figure 8 shown, in some embodiments, the fourth through-hole 351 is a counterbore. With such a setting, when the second fastener 50 connects the fourth through-hole 351 and the second through-hole 2131, the second fastener 50 can be urged to sink into and be received in the fourth through-hole 351, so as to reduce the size of the second fastener 50 protruding from the orifice of the fourth through-hole 351, or even make the second fastener 50 basically not protrude from the orifice of the fourth through-hole 351. Based on this, the space occupied by the second fastener 50 in the radial direction of the main cylinder 21 can be compressed, thereby the radial size and volume of the focusing assembly can be compressed, the structural design of the focusing assembly can be compacted and optimized, the space requirements of the focusing assembly and the lens can be reduced, and it is beneficial to the miniaturization of the focusing assembly and the lens.

[0089] Please refer to Figure 1 , some embodiments of the present application provide a lens, including the focusing assembly provided by the embodiments of the present application.

[0090] By adopting the above solution, the lens can achieve the focusing function by using the focusing assembly provided by the embodiments of the present application, and improve the use performance, convenience, flexibility and applicability of the lens.

[0091] In some embodiments, the lens includes a first optical module and a second optical module. The first optical module is connected to the rotating barrel 20, and the second optical module is connected to the outer housing barrel 10. The rotating barrel 20 can drive the first optical module to move by rotation to adjust the distance between the first optical module and the second optical module, thereby achieving the focusing function.

[0092] Please refer to Figure 1 , some embodiments of the present application provide a camera, including the lens provided by the embodiments of the present application. The lens provided by the embodiments of the present application can be mounted on the main body frame of the camera.

[0093] By adopting the above solution, the camera can improve the performance, convenience, flexibility and applicability of the camera by using the lens provided by the embodiments of the present application.

[0094] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements or improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A focusing assembly, characterized in that: include: An outer cover lens barrel, wherein a display window is penetrated through the barrel wall of the outer cover lens barrel; The rotating lens barrel comprises a main barrel and a focus ring arranged at one end of the main barrel, wherein the main barrel is sleeved in the barrel of the outer cover lens barrel, the focus ring is exposed outside the outer cover lens barrel, and a positioning convex portion is arranged on the outer periphery of the main barrel; A scale barrel is sleeved between the main barrel and the outer cover barrel, the scale barrel is connected to the rotating barrel and rotates synchronously with the rotating barrel; the outer circumferential surface of the scale barrel is provided with a first scale and a second scale which are arranged in sequence along its axial direction and have different measurement units; the inner circumferential surface of the scale barrel is provided with a positioning groove which extends along its axial direction and passes through both ends, and the positioning protrusion is fitted in the positioning groove; the opposite ends of the positioning groove can be switchably approached to the focus ring so that the first scale and the second scale are switchably exposed in the display window.

2. The focusing assembly according to claim 1, characterized in that: Along the circumference of the main cylinder, the installation position of the positioning protrusion relative to the main cylinder is adjustable.

3. The focusing assembly according to claim 1, characterized in that: The main cylinder is provided with a first hole group, the first hole group includes a plurality of first through holes arranged at intervals along the circumference of the main cylinder; The rotating lens barrel also includes an adjustment seat, the positioning protrusion is arranged on a side of the adjustment seat away from the main cylinder body, the adjustment seat is detachably connected to at least one of the first through holes via a first fastener, and the installation position of the adjustment seat in the first hole group is adjustable.

4. The focusing assembly according to claim 3, characterized in that: The adjustment seat is provided with an adjustment groove, which is extended along the circumference of the main cylinder and is penetrated along the groove depth direction thereof. The adjustment groove is connected to at least one of the first through holes through the first fastener.

5. The focusing assembly according to claim 3, characterized in that: The outer circumferential surface of the main cylinder is provided with a receiving groove, the first hole group is arranged at the groove bottom of the receiving groove, the adjustment seat and the first fastener are both received in the receiving groove, and the positioning protrusion protrudes from the notch of the receiving groove.

6. The focusing assembly according to any one of claims 1 to 5, characterized in that: The positioning protrusion is a plastic part.

7. The focusing assembly according to any one of claims 1 to 5, characterized in that: The first scale is an English scale, and the second scale is a metric scale.

8. The focusing assembly according to any one of claims 1 to 5, characterized in that: At least one second hole group is provided at one end of the main cylinder body close to the focus ring, and the second hole group includes a plurality of second through holes spaced apart along the circumference of the main cylinder body; The scale barrel has a first end and a second end opposite to each other in the axial direction thereof, the first end is provided with a plurality of third through holes spaced apart along the circumference of the scale barrel, the second end is provided with a plurality of fourth through holes spaced apart along the circumference of the scale barrel, and the first end and the second end can be switchably close to the focus ring; When the first end is arranged close to the focus ring, at least one of the third through holes and the second through hole arranged in correspondence thereto are connected via a second fastener; When the second end is arranged close to the focus ring, at least one of the fourth through holes and the second through hole arranged opposite thereto are connected via a second fastener.

9. A lens, characterized in that: It comprises a focusing assembly as described in any one of claims 1-8.

10. A camera, characterized in that: Comprising the lens as claimed in claim 9.

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