Device and method for integrating focusing and variable aperture

Abstract

The invention provides an integrated focusing and aperture variable device and method, and relates to the technical field of optics, the device comprises an inner fixing frame, an outer fixing frame, a blade assembly, a rotating frame, a cam cylinder, a focusing cylinder, a deflector rod and a guide nail assembly, and the outer fixing frame and the focusing cylinder are connected to connect an aperture variable unit and a focusing unit. The shifting rod is shifted to drive the rotating frame to rotate along the circumferential groove, the blade assembly rotates to change so as to change the aperture of the aperture, when the guide nail assembly is shifted, the guide nail assembly drives the focusing barrel to slide along the cam groove, the focusing barrel axially and linearly moves to achieve focusing, meanwhile, aperture changing and focusing are achieved, and the blade assembly is simple in structure and convenient to operate. The variable aperture unit and the focusing unit are mutually independent and are convenient to disassemble independently, the precision and the imaging effect are not affected, and the technical problems that an aperture assembly and a focusing assembly of an existing manual focusing variable aperture device are installed in the same lens cone and are inconvenient to replace independently, and the imaging effect is affected are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical technology, in particular to a device and method for integrated focusing and aperture variable. BACKGROUND

[0002] With the development of the camera lens market, the requirements for the lens are more and more diverse. At present, the variable aperture and the focusing device outside the lens are mainly used to meet different shooting needs. When shooting at a long focal length, a large aperture is used to improve the light intake and the bokeh effect. When shooting at a short focal length, a small aperture is switched to improve the resolving power of the short focal length shooting. However, the existing integrated lens is expensive. In order to meet the photography needs of users, the low-cost integrated manual focusing and variable aperture device is more and more popular.

[0003] A manual focusing and manual aperture structure of an industrial lens is disclosed in Chinese Patent Publication No. CN204556937U. The aperture assembly is axially moved by rotating the focusing ring. The focusing ring and the aperture assembly are connected by a six-start thread. The focal length adjustment is fast, stable and accurate. The structure eliminates the gap between the aperture ring and the object carrier ring by the setting of the spring and the steel ball. However, the aperture assembly and the focusing assembly are installed in the same lens barrel and are not independently distinguished. It is inconvenient to adjust or replace them separately. Moreover, the blade structure is complex. When replacing the aperture blade or the focusing assembly, the precision of the other side may be affected. The maintenance cost and risk are increased, and the imaging effect is affected. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to overcome the defects in the prior art, thereby providing a device and method for integrated focusing and aperture variable.

[0005] A device for integrated focusing and aperture variable comprises a variable aperture unit and a focusing unit. The variable aperture unit comprises an inner fixed frame, an outer fixed frame, a blade assembly and a rotating frame. The focusing unit comprises a cam barrel and a focusing barrel. One end of the blade assembly is rotatably installed on the inner fixed frame. The other end of the blade assembly is slidably installed on the rotating frame. The inner fixed frame and the rotating frame are both installed in the outer fixed frame. A pull lever is arranged on the side wall of the rotating frame. A circumferential groove corresponding to the pull lever is formed on the inner fixed frame and the outer fixed frame. The pull lever is slidably arranged in the circumferential groove. The outer fixed frame is connected with the focusing barrel. The focusing barrel is symmetrically provided with a guide pin assembly. The cam barrel is provided with a cam groove corresponding to the guide pin assembly. The guide pin assembly is slidably arranged in the cam groove. The cam barrel is fixedly connected with the camera lens.

[0006] Further, the blade assembly comprises a mounting pin and a blade. The cross section of the blade is a semi-circular ring. The two ends of the blade are fixedly connected with the mounting pins, respectively.

[0007] Furthermore, the inner fixed frame has a plurality of mounting holes corresponding to the mounting pins evenly spaced, and the rotating frame has a plurality of mounting slots corresponding to the mounting pins evenly spaced. The mounting pins on the blade near the inner fixed frame are rotatably installed in the mounting holes, and the mounting pins on the blade near the rotating frame are slidably installed in the mounting slots.

[0008] Furthermore, the device also includes an aperture adjustment cylinder, which is rotatably mounted on an outer fixed frame, and a first slot corresponding to the lever is opened on the inner wall of the aperture adjustment cylinder, and the lever is installed in the first slot.

[0009] Furthermore, the device also includes a focusing rotating cylinder, which is rotatably mounted on a cam cylinder. A second slot corresponding to the guide pin assembly is provided on the inner wall of the focusing rotating cylinder, and the guide pin assembly is installed in the second slot.

[0010] Furthermore, the first slot has a Z-shaped cross-section, and a groove is also provided on the side wall of the aperture adjustment cylinder, with the included angle M of the groove's cross-section being 90 degrees.

[0011] Furthermore, the guide pin assembly includes a washer and a fixing screw. The washer is mounted on the fixing screw, and the fixing screw has a slot. An inner boss is provided inside the outer fixing frame, and the rotating frame is rotatably mounted on the inner boss.

[0012] Furthermore, the device also includes a focusing stop, which is disposed between the outer fixed frame and the focusing rotating cylinder, and is fixedly connected to the focusing rotating cylinder.

[0013] Furthermore, the circumferential groove includes a first circumferential groove and a second circumferential groove. The first circumferential groove is formed on the side wall of the inner fixed frame, and the second circumferential groove is formed on the outer fixed frame. The lever is slidably disposed on the first circumferential groove and the second circumferential groove.

[0014] The present invention also includes a method for integrating focusing and variable aperture, which is based on the device for integrating focusing and variable aperture described in any of the above claims. The cam cylinder is fixedly connected to the camera lens, the outer fixing frame is connected to the focusing cylinder, the lever is turned, the lever drives the rotating frame to rotate along the circumferential groove, one end of the blade assembly rotates on the inner fixing frame, and the other end of the blade assembly slides on the rotating frame to change the aperture diameter, the guide pin assembly is turned, the guide pin assembly drives the focusing cylinder to slide along the cam groove, and then the focusing cylinder moves axially linearly to achieve focusing.

[0015] The technical solution of this invention has the following advantages: The technical scheme provided by the application connects the variable aperture unit and the focusing unit together through the outer fixing frame and the focusing barrel, simultaneously drives the rotating frame to rotate along the circumferential groove by rotating the rotating rod, and changes the aperture diameter by rotating the blade assembly, when the guide pin assembly is rotated, the guide pin assembly drives the focusing barrel to slide along the cam groove, and then the focusing barrel moves axially and linearly to realize focusing, simultaneously realizing the functions of variable aperture and focusing, the blade assembly has simple structure, the variable aperture unit and the focusing unit are independent of each other, and are convenient to disassemble and replace independently, and will not affect the precision and imaging effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the specific embodiments of the application or the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0017] Figure 1 It is an overall structural schematic diagram of the application. Figure 2 It is a structural schematic diagram of the blade assembly of the application. Figure 3 It is a structural schematic diagram of the guide pin assembly of the application. Figure 4 It is an overall structural exploded schematic diagram of the application. Figure 5 It is a structural schematic diagram of the aperture adjusting barrel of the application. Figure 6 It is a structural schematic diagram of the first slot of the application. Figure 7 It is a structural schematic diagram of the focusing rotating barrel of the application. Figure 8 It is a structural schematic diagram of the outer fixing frame of the application. Figure 9 It is a schematic diagram of the connection relationship of the inner fixing frame, the blade assembly and the rotating rod of the application. Figure 10 It is a structural schematic diagram of the inner fixing frame of the application. Figure 11 It is a structural schematic diagram of the rotating frame of the application. Figure 12 It is a structural schematic diagram of the focusing barrel of the application.

[0018] Explanation of reference signs: 1 - inner fixing frame; 101 - first circumferential groove; 102 - mounting hole; 2 - aperture adjusting cylinder; 201 - first notch; 202 - groove; 3 - outer fixing frame; 301 - inner boss; 302 - second circumferential groove; 303 - outer edge; 4 - blade assembly; 401 - mounting nail; 402 - blade; 5 - rotating frame; 6 - shifting lever; 7 - focusing stop; 8 - focusing rotating cylinder; 801 - second notch; 9 - cam cylinder; 901 - cam groove; 10 - focusing cylinder; 1001 - threaded hole; 11 - guide nail assembly; 1101 - washer; 1102 - fixing screw; 12 - connecting screw. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0023] As Figure 1 , Figure 4 , Figure 9 and Figure 12The device shown integrates focusing and variable aperture, comprising: a variable aperture unit and a focusing unit. The variable aperture unit includes an inner fixed frame 1, an outer fixed frame 3, a blade assembly 4, and a rotating frame 5. The focusing unit includes a cam cylinder 9 and a focusing cylinder 10. One end of the blade assembly 4 is rotatably mounted on the inner fixed frame 1, and the other end of the blade assembly 4 is slidably mounted on the rotating frame 5. Both the inner fixed frame 1 and the rotating frame 5 are mounted in the outer fixed frame 3. A lever 6 is fixedly installed on the side wall of the rotating frame 5 by a threaded connection. Both the inner fixed frame 1 and the outer fixed frame 3 have circumferential grooves corresponding to the lever 6. The lever 6 is slidably mounted on the circumferential grooves to achieve rotation. The outer fixed frame 3 and the focusing cylinder 10 are threadedly connected. A pair of threaded holes 1001 are symmetrically arranged on the focusing cylinder 10. A guide pin assembly 11 is installed in the threaded holes 1001. The cam cylinder 9 has a cam groove 901 corresponding to the guide pin assembly 11. The guide pin assembly 11 is slidably mounted in the cam groove 901. The cam cylinder 9 is fixedly connected to the camera lens by a thread.

[0024] The aforementioned integrated focusing and aperture variable device connects the variable aperture unit and the focusing unit together via the external fixed frame 3 and the focusing cylinder 10. Simultaneously, by moving the lever 6, the rotating frame 5 rotates along the circumferential groove, and the rotation of the blade assembly 4 changes the aperture diameter. When the guide pin assembly 11 is moved, the guide pin assembly 11 drives the focusing cylinder 10 to slide along the cam groove 901, thereby enabling the focusing cylinder 10 to move axially linearly to achieve focusing. This simultaneously realizes the functions of variable aperture and focusing. The blade assembly 4 has a simple structure, and the variable aperture unit and the focusing unit are independent of each other, making it easy to disassemble and replace them separately without affecting accuracy or imaging effect.

[0025] like Figure 2 As shown, in this embodiment, the blade assembly 4 includes mounting pins 401 and blades 402. The cross-section of the blade 402 is a semi-circular ring. Both ends of the blade 402 are fixedly connected to mounting pins 401, and the mounting pins 401 are located on both sides of the blade 402. In this embodiment, the blade assembly 4 is designed with a total of twelve sets. The mounting pins 401 are fixedly connected to the blades 402 by threads. The aperture formed by the twelve sets of blades 402 is the aperture. By rotating the mounting pins 401 on the inner fixing frame 1 and sliding them on the rotating frame 5, the twelve sets of blades 402 can be changed to achieve the opening and closing action, thereby changing the aperture diameter and realizing a variable aperture.

[0026] like Figure 2 , Figure 10 and Figure 11As shown, in the embodiment, the inner fixing frame 1 is uniformly provided with multiple installation holes 102 corresponding to the installation nails 401, the rotating frame 5 is uniformly provided with multiple installation slots corresponding to the installation nails 401, the installation nails 401 on the side of the blade 402 close to the inner fixing frame 1 are rotationally installed in the installation holes 102, and the installation nails 401 on the side of the blade 402 close to the rotating frame 5 are slidingly installed in the installation slots; the installation holes 102 are provided to facilitate the rotation of the installation nails 401, the installation slots are linear strips, the installation nails 401 are facilitated to slide in the installation slots, and thus the change of the size of the aperture diameter of the aperture is realized.

[0027] As shown in Figure 4 and Figure 5 , in the embodiment, the device further comprises an aperture adjusting cylinder 2, the aperture adjusting cylinder 2 is rotationally installed on the outer fixing frame 3, a first slot 201 corresponding to the lever 6 is formed on the inner wall of the aperture adjusting cylinder 2, and the lever 6 is installed in the first slot 201; by installing the aperture adjusting cylinder 2 on the outermost circle of the device, when the aperture needs to be adjusted, the aperture adjusting cylinder 2 is directly rotated, the lever 6 is driven by the first slot 201, the rotating frame 5 is rotated along the circumferential slot by the lever 6, and the change of the aperture diameter is realized by the rotation change of the blade assembly 4.

[0028] As shown in Figure 7 , in the embodiment, the device further comprises a focusing rotating cylinder 8, the focusing rotating cylinder 8 is rotationally installed on the cam cylinder 9, a second slot 801 corresponding to the guide nail assembly 11 is formed on the inner wall of the focusing rotating cylinder 8, and the guide nail assembly 11 is installed in the second slot 801; by installing the focusing rotating cylinder 8 on the outermost circle of the device, when focusing is needed, the focusing rotating cylinder 8 is directly rotated, the guide nail assembly 11 is driven by the second slot 801, the focusing cylinder 10 is slid along the cam slot 901 by the guide nail assembly 11, and then the focusing cylinder 10 is axially linearly moved to realize focusing.

[0029] As shown in Figure 6 , Figure 7 and Figure 9As shown, in this embodiment, the first slot 201 has a Z-shaped cross-section, and a groove 202 is also provided on the side wall of the aperture adjustment cylinder 2. The included angle M of the cross-section of the groove 202 is 90 degrees. The Z-shaped cross-section of the first slot 201 can stably hold the lever 6 into the first slot 201, thereby ensuring that the lever 6 can rotate stably when the aperture adjustment cylinder 2 is rotated, thus realizing the variable aperture function. The groove 202 and the included angle M of the cross-section of the groove 202 being 90 degrees can increase the friction force when the user rotates the aperture adjustment cylinder 2, making the aperture adjustment more precise. Especially in some scenes with high photography requirements, precise aperture adjustment can effectively improve the imaging effect. Moreover, the outer wall surface structure of the focusing rotating cylinder 8 is the same as that of the aperture adjustment cylinder 2. The outer surface of the focusing rotating cylinder 8 is also provided with a groove 202, and the included angle of the cross-section is also 90 degrees. This setting can also increase the friction force when the user rotates the focusing rotating cylinder 8, thereby making the focusing more precise and improving the imaging effect.

[0030] like Figure 3 As shown, in this embodiment, the guide pin assembly 11 includes a washer 1101 and a fixing screw 1102. The washer 1101 is installed on the fixing screw 1102, and a slot is formed on the fixing screw 1102. An inner boss 301 is provided inside the outer fixing frame 3, and the rotating frame 5 is rotatably mounted on the inner boss 301. During installation, the washer 1101 is first installed on the fixing screw 1102, and then the fixing screw 1102 is tightened onto the focusing cylinder 10 by using a screwdriver and the slot. By setting the washer 1101, the fixing screw 1102 can be prevented from directly contacting the cam groove 901 on the cam cylinder 9. The washer 1101 can improve the smoothness and stability of the sliding process, which helps to accurately focus. The inner boss 301 not only provides support for the rotating frame 5, but also provides a limiting function to ensure that the rotating frame 5 can rotate normally.

[0031] like Figure 4 As shown, in this embodiment, the device also includes a focusing stop 7, which is disposed between the outer fixing frame 3 and the focusing rotating cylinder 8. The focusing stop 7 is fixedly connected to the focusing rotating cylinder 8. The focusing stop 7 is fixedly connected to the focusing rotating cylinder 8 by four evenly distributed connecting screws 12. At the same time, it is combined with the outer edge 303 of the outer fixing frame 3 to limit the axial displacement of the focusing rotating cylinder 8 and prevent the focusing rotating cylinder 8 from moving excessively.

[0032] like Figure 8 and Figure 10As shown in the embodiment, the circumferential grooves include a first circumferential groove 101 and a second circumferential groove 302, the first circumferential groove 101 is arranged on the side wall of the inner fixing frame 1, the second circumferential groove 302 is arranged on the outer fixing frame 3, and the push rod 6 is slidingly arranged on the first circumferential groove 101 and the second circumferential groove 302; during installation, the first circumferential groove 101 and the second circumferential groove 302 are coincident, and both the first circumferential groove 101 and the second circumferential groove 302 are interval grooves, that is, only a small section of the side wall of the inner fixing frame 1 and the outer fixing frame 3 is arranged to meet the adjustment purpose; by rotating the aperture adjustment cylinder 2, the first slot 201 is clamped to drive the push rod 6, the push rod 6 drives the rotating frame 5 to rotate along the first circumferential groove 101 and the second circumferential groove 302, the blade assembly 4 rotates to change to realize the change of the aperture diameter, and the aperture is variable.

[0033] As shown in the embodiment, Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Figure 9 As shown in the embodiment, the application also includes a method for integrating focusing and aperture variable, which is realized based on any one of the above-mentioned devices for integrating focusing and aperture variable, the cam cylinder 9 is fixedly connected with the camera lens, the outer fixing frame 3 is connected with the focusing cylinder 10, the push rod 6 is pushed, the push rod 6 drives the rotating frame 5 to rotate along the circumferential groove, one end of the blade assembly 4 rotates on the inner fixing frame 1, the other end of the blade assembly 4 slides on the rotating frame 5 to realize the change of the aperture diameter, the guide nail assembly 11 is pushed, the guide nail assembly 11 drives the focusing cylinder 10 to slide along the cam groove 901, and then the focusing cylinder 10 moves axially and linearly to realize focusing. Specifically, first, the cam cylinder 9 is fixedly connected with the camera lens, an installation interface is arranged on the edge of the end of the cam cylinder 9 away from the outer fixing frame 3, the cam cylinder 9 is fixedly connected with the camera lens by using a screw during use, the outer fixing frame 3 is threadedly connected with the focusing cylinder 10, when the aperture is adjusted, the aperture adjustment cylinder 2 is rotated, the first slot 201 is clamped to drive the push rod 6, the push rod 6 drives the rotating frame 5 to rotate along the first circumferential groove 101 and the second circumferential groove 302, the installation nail 401 rotates on the inner fixing frame 1 and slides on the rotating frame 5 to realize the change of the twelve groups of blades 402, and then the change of the aperture diameter is realized, that is, the variable aperture is realized; when focusing is performed, the focusing rotating cylinder 8 is rotated, the second slot 801 is clamped to drive the washer 1101 and the fixed screw 1102 to move, the washer 1101 and the fixed screw 1102 drive the focusing cylinder 10 to slide along the cam groove 901, and then the focusing cylinder 10 moves axially and linearly to realize focusing. Through the above-mentioned operation scheme, the operation is simple and fast, the blade structure is simple, the installation is convenient, and the adjustment process is stable and accurate.

[0034] Obviously, the above-mentioned embodiments are only examples for clearly illustrating the present application, but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to enumerate all the embodiments. The obvious changes or variations derived from the above description are still within the protection scope of the present application.

Claims

1. A device integrating focusing and variable aperture, comprising: Variable aperture unit and focusing unit, characterized in that the variable aperture unit includes an inner fixing frame (1), an outer fixing frame (3), a blade assembly (4) and a rotating frame (5), the focusing unit includes a cam cylinder (9) and a focusing cylinder (10), one end of the blade assembly (4) is rotatably installed on the inner fixing frame (1), the other end of the blade assembly (4) is slidably installed on the rotating frame (5), both the inner fixing frame (1) and the rotating frame (5) are installed in the outer fixing frame (3), a dial rod (6) is provided on the side wall of the rotating frame (5), circumferential grooves corresponding to the dial rod (6) are provided on both the inner fixing frame (1) and the outer fixing frame (3), the dial rod (6) is slidably arranged on the circumferential groove, the outer fixing frame (3) is connected to the focusing cylinder (10), guide pin assemblies (11) are symmetrically provided on the focusing cylinder (10), a cam groove (901) corresponding to the guide pin assemblies (11) is provided on the cam cylinder (9), the guide pin assemblies (11) are slidably arranged in the cam groove (901), and the cam cylinder (9) is fixedly connected to the camera lens.

2. The device integrating focusing and variable aperture according to claim 1, characterized in that, The blade assembly (4) includes mounting pins (401) and blades (402), the cross-section of the blade (402) is semi-annular, both ends of the blade (402) are fixedly connected with mounting pins (401), and the mounting pins (401) are respectively located on both sides of the blade (402).

3. The device integrating focusing and variable aperture according to claim 2, characterized in that, Multiple mounting holes (102) corresponding to the mounting pins (401) are uniformly provided on the inner fixing frame (1), multiple mounting grooves corresponding to the mounting pins (401) are uniformly provided on the rotating frame (5), the mounting pin (401) on the side of the blade (402) close to the inner fixing frame (1) is rotatably installed in the mounting hole (102), and the mounting pin (401) on the side of the blade (402) close to the rotating frame (5) is slidably installed in the mounting groove.

4. The device integrating focusing and variable aperture according to claim 1, characterized in that, The device further includes an aperture adjusting cylinder (2), the aperture adjusting cylinder (2) is rotatably installed on the outer fixing frame (3), and a first notch (201) corresponding to the dial rod (6) is provided on the inner wall of the aperture adjusting cylinder (2), and the dial rod (6) is installed in the first notch (201).

5. The device integrating focusing and variable aperture according to claim 1, characterized in that, The device further includes a focusing rotating cylinder (8), the focusing rotating cylinder (8) is rotatably installed on the cam cylinder (9), and a second notch (801) corresponding to the guide pin assemblies (11) is provided on the inner wall of the focusing rotating cylinder (8), and the guide pin assemblies (11) are installed in the second notch (801).

6. The device integrating focusing and variable aperture according to claim 4, characterized in that, The cross-section of the first notch (201) is in a shape of a capital letter 'J', and a groove (202) is further provided on the side wall of the aperture adjusting cylinder (2), and the included angle M of the cross-section of the groove (202) is 90 degrees.

7. The device integrating focusing and variable aperture according to claim 1, characterized in that, The guide pin assembly (11) includes a washer (1101) and a fixing screw (1102), the washer (1101) is installed on the fixing screw (1102), a slotted screwdriver notch is provided on the fixing screw (1102), an inner boss (301) is provided inside the outer fixing frame (3), and the rotating frame (5) is rotatably arranged on the inner boss (301).

8. The device integrating focusing and variable aperture according to claim 5, characterized in that, The device also includes a focusing stop (7), which is disposed between the outer fixed frame (3) and the focusing rotating cylinder (8), and the focusing stop (7) is fixedly connected to the focusing rotating cylinder (8).

9. The device integrating focusing and variable aperture according to claim 1, characterized in that, The circumferential groove includes a first circumferential groove (101) and a second circumferential groove (302). The first circumferential groove (101) is opened on the side wall of the inner fixed frame (1), and the second circumferential groove (302) is opened on the outer fixed frame (3). The lever (6) is slidably arranged on the first circumferential groove (101) and the second circumferential groove (302).

10. A method for integrating focusing and variable aperture, the method being implemented based on the device for integrating focusing and variable aperture as described in any one of claims 1 to 9, characterized in that, The cam cylinder (9) is fixedly connected to the camera lens, the outer fixing frame (3) is connected to the focusing cylinder (10), the lever (6) is turned, the lever (6) drives the rotating frame (5) to rotate along the circumferential groove, one end of the blade assembly (4) rotates on the inner fixing frame (1), and the other end of the blade assembly (4) slides on the rotating frame (5) to realize the change of aperture diameter. The guide pin assembly (11) is turned, the guide pin assembly (11) drives the focusing cylinder (10) to slide along the cam groove (901), and then the focusing cylinder (10) moves axially in a straight line to realize focusing.

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