Real shot lens fixing jig

Abstract

The utility model relates to optical lens detection technical field discloses a kind of real shot lens fixing jig, including supporting component, fixed cylinder and clamping assembly, limiting hole is set on supporting component;Fixed cylinder is set to supporting component, and coaxially with limiting hole and is communicated and is set, lens is installed in fixed cylinder, and is limited in limiting hole;Clamping assembly includes fixed arm and movable arm that are oppositely arranged and can enclose clamping space, fixed arm is set on fixed cylinder, one end of fixed arm is hinged with movable arm, and the other end of fixed arm is hinged with locking member;Clamping groove is set on movable arm, locking member can be clamped in clamping groove or escape from clamping groove by rotation, to lock or unlock lens located in clamping space.The real shot lens fixing jig can realize the locking and unlocking of clamping assembly by the rotation of locking member, the locking and unlocking of lens is more convenient, and lens is more quickly and conveniently taken and placed.

Description

Technical Field

[0001] This utility model relates to the field of optical lens inspection technology, and in particular to a lens fixing fixture for actual shooting. Background Technology

[0002] With the development of modern technology, zoom lenses have been rapidly developed and widely used. For real-world shooting of zoom lenses, a simple shooting fixture plays a very important role in quickly determining the image quality of zoom lenses.

[0003] In the existing technology, the fixing fixture locks or unlocks the lens by clamping components. When locking the lens, the clamping components need to tighten the screws, and when unlocking the lens, the screws need to be unscrewed, which makes locking and unlocking the lens cumbersome and inconvenient. Utility Model Content

[0004] The purpose of this utility model is to propose a lens fixing fixture for actual shooting, which solves the technical problem of inconvenience caused by locking or unlocking the lens with screws.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a lens fixing fixture for actual shooting, including a support component, a fixing cylinder, and a clamping component. The support component is provided with a limiting hole. The fixing cylinder is disposed on the support component and is coaxial and connected to the limiting hole. The lens is installed in the fixing cylinder and confined within the limiting hole. The clamping component includes a fixed arm and a movable arm that are arranged opposite to each other and can form a clamping space. The fixed arm is disposed on the fixing cylinder. One end of the fixed arm is hinged to the movable arm, and the other end of the fixed arm is hinged to a locking member. The movable arm is provided with a locking groove. The locking member can rotate to engage with or disengage from the locking groove to lock or unlock the lens located in the clamping space.

[0007] This lens fixing fixture includes a support assembly, a fixing cylinder, and a clamping assembly. The support assembly has a limiting hole. The fixing cylinder is set on the support assembly and is coaxial and connected to the limiting hole. The lens is installed in the fixing cylinder and confined within the limiting hole. The clamping assembly includes a fixed arm and a movable arm that are arranged opposite to each other and can form a clamping space. The fixed arm is set on the fixing cylinder. One end of the fixed arm is hinged to the movable arm, and the other end of the fixed arm is hinged to a locking member. The movable arm has a locking groove. The locking member can be rotated to engage or disengage from the locking groove to lock or unlock the lens located in the clamping space. The locking and unlocking of the clamping assembly can be achieved by rotating the locking member, which makes locking and unlocking the lens more convenient and allows for faster and more convenient lens loading and unloading.

[0008] As a preferred embodiment of the above-mentioned lens fixing fixture, the snap-fit ​​groove is provided with an elastic snap-fit ​​component, the elastic snap-fit ​​component has a U-shaped structure, and the locking component can snap into or disengage from the elastic snap-fit ​​component.

[0009] The elastic snap-fit ​​component can provide elastic clamping for the locking component, improving the locking effect and preventing locking failure.

[0010] As a preferred embodiment of the above-mentioned lens fixing fixture, one end of the locking member is hinged to the fixing arm, and the other end of the locking member is provided with a stop member. When the locking member is engaged in the locking groove, the stop member is located on the side of the movable arm away from the fixing arm.

[0011] The stop mechanism restricts the rotation of the movable arm, preventing it from opening while locked.

[0012] As a preferred embodiment of the aforementioned lens fixing fixture, the fixing cylinder includes:

[0013] A cylindrical body, wherein a through hole is provided in the cylindrical body and extends through both ends of the cylindrical body along its axial direction, and the through hole is connected to the limiting hole;

[0014] The upper end face of the cylinder is provided with an arc-shaped connecting part that is consistent with the bending direction of the cylinder. The fixed arm is provided at the connecting part, and there is a gap between the movable arm and the cylinder.

[0015] The connection part is mainly for the installation of the fixed arm, and it also allows for a gap between the movable arm and the cylinder, preventing rotational friction between the upper surface of the cylinder and the movable arm, thus facilitating the smooth rotation of the movable arm.

[0016] As a preferred embodiment of the above-mentioned lens fixing fixture, one end of the fixed arm that is hinged to the movable arm extends out of the connecting part along the bending direction of the connecting part.

[0017] The above settings can avoid interfering with the rotation of the movable arm.

[0018] As a preferred embodiment of the aforementioned lens fixing fixture, the fixing arm includes a fixing body and a fixing connecting ear, and the movable arm includes a movable body and a movable connecting ear. The fixing body and the movable body are arranged opposite to each other, and one end of the fixing body is hinged to the movable body. The fixing body and the movable body can form a circular clamping space. The other end of the fixing body is connected to the fixing connecting ear, and the locking member is hinged to the fixing connecting ear. The end of the movable connecting ear that is not hinged to the fixing body is connected to the movable connecting ear, and the movable connecting ear is provided with the snap-fit ​​groove.

[0019] The cooperation between the fixed body and the movable body can clamp and lock the lens. The fixed connecting ear facilitates the installation of the locking device, and the movable connecting ear facilitates the setting of the snap-fit ​​groove. The structure of the fixed arm and the movable arm is simple and easy to manufacture.

[0020] As a preferred embodiment of the aforementioned lens fixing fixture, the support component includes:

[0021] Support base;

[0022] The limiting seat is detachably installed on the support base, and the limiting seat is detachably connected to the fixed cylinder. The limiting seat is provided with the limiting hole.

[0023] The support assembly includes a support base and a limiting seat. The support base facilitates the installation of the entire assembly on the testing equipment. The limiting seat is detachably installed on the support base and is detachably connected to the fixing cylinder. This allows for the replacement of different limiting seats according to different lens models, so that the lens fixing fixture can meet different usage requirements.

[0024] As a preferred embodiment of the above-mentioned lens fixing fixture, the support base is provided with a stepped hole, and the limiting seat is limited and supported in the stepped hole.

[0025] The stepped hole can limit the position of the limit seat.

[0026] As a preferred embodiment of the above-mentioned lens fixing fixture, the limiting seat is provided with a plurality of first fixing holes along the circumference of the limiting hole, and the bottom of the fixing cylinder is provided with second fixing holes corresponding to the first fixing holes. The fixing member passes through the first fixing holes and connects to the corresponding second fixing holes to connect the limiting seat and the fixing cylinder.

[0027] The limiting seat and the fixed cylinder are firmly fixed together by the above-mentioned fixing method, which is convenient for disassembly and assembly; moreover, the structure is simple and easy to manufacture.

[0028] As a preferred embodiment of the above-mentioned lens fixing fixture, the limiting seat is provided with a groove on the side facing the fixing cylinder, a protrusion is provided in the groove, and the limiting hole is provided in the groove corresponding to the position of the protrusion. The protrusion forms a limiting boss on the outer periphery of the limiting hole, and the annular end face of the lens abuts against the limiting boss.

[0029] The limiting boss can abut against the annular end face of the lens, which can help the limiting hole to limit the lens and prevent the lens from moving along the axial direction of the limiting hole.

[0030] The beneficial effects of this utility model are:

[0031] The present invention proposes a lens fixing fixture, comprising a support assembly, a fixing cylinder, and a clamping assembly. The support assembly is provided with a limiting hole, and the fixing cylinder is disposed on the support assembly and coaxially connected to the limiting hole. The lens is installed in the fixing cylinder and confined within the limiting hole. The clamping assembly includes a fixed arm and a movable arm arranged opposite to each other and forming a clamping space. The fixed arm is disposed on the fixing cylinder, one end of the fixed arm is hinged to the movable arm, and the other end of the fixed arm is hinged to a locking member. The movable arm is provided with a locking groove, and the locking member can be rotated to engage or disengage from the locking groove to lock or unlock the lens located in the clamping space. The locking and unlocking of the clamping assembly can be achieved by rotating the locking member, making it more convenient to lock and unlock the lens and allowing for faster and more convenient lens loading and unloading. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the first structure of the lens installed in the lens fixing fixture provided by this utility model;

[0033] Figure 2 This is a schematic diagram of the second structure provided by this utility model, showing the lens installed in the lens fixing fixture for actual shooting.

[0034] Figure 3 This is a schematic diagram of the third structure provided by this utility model, showing the lens installed in the lens fixing fixture for actual shooting.

[0035] Figure 4 yes Figure 3 Sectional view along line AA;

[0036] Figure 5 This is a schematic diagram of the structure of the support base provided by this utility model;

[0037] Figure 6 This is a schematic diagram of the actual shooting lens fixing fixture provided by this utility model after removing the support base;

[0038] Figure 7 This is a schematic diagram of the structure of the limiting seat provided by this utility model;

[0039] Figure 8 This is a schematic diagram of the structure of the limiting seat and the fixing cylinder to be assembled according to this utility model;

[0040] Figure 9 This is a first structural schematic diagram of the fixing cylinder and clamping assembly provided by this utility model;

[0041] Figure 10 This is a second structural schematic diagram of the fixing cylinder and clamping assembly provided by this utility model.

[0042] In the diagram: 1. Support component; 10. Limiting hole; 11. Support base; 110. Stepped hole; 111. Mounting hole; 12. Limiting seat; 121. First fixing hole; 122. Groove; 123. Limiting boss; 2. Fixing cylinder; 21. Cylinder body; 211. Second fixing hole; 22. Connecting part; 3. Clamping component; 31. Fixing arm; 311. Fixing body; 312. Fixing connecting ear; 3121. Mounting groove; 32. Movable arm; 320. Snap-fit ​​groove; 321. Movable body; 322. Movable connecting ear; 33. Locking component; 34. Elastic snap-fit ​​component; 35. Stop component; 4. Fixing component; 100. Lens. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0044] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0047] like Figures 1-4 As shown, this embodiment provides a lens fixing fixture, including a support assembly 1, a fixing cylinder 2, and a clamping assembly 3. The support assembly 1 is provided with a limiting hole 10. The fixing cylinder 2 is disposed on the support assembly 1 and is coaxial and connected with the limiting hole 10. The lens 100 is installed in the fixing cylinder 2 and confined within the limiting hole 10. The clamping assembly 3 includes a fixed arm 31 and a movable arm 32 that are arranged opposite to each other and can form a clamping space. The fixed arm 31 is disposed on the fixing cylinder 2. One end of the fixed arm 31 is hinged to the movable arm 32, and the other end of the fixed arm 31 is hinged to a locking member 33. The movable arm 32 is provided with a snap-fit ​​groove 320. The locking member 33 can rotate to snap into or disengage from the snap-fit ​​groove 320 to lock or unlock the lens 100 located in the clamping space. The lens fixing fixture can lock and unlock the clamping component 3 by rotating the locking member 33, which makes locking and unlocking the lens 100 more convenient and allows for faster and easier loading and unloading of the lens 100.

[0048] like Figure 2 As shown, the support assembly 1 includes a support base 11 and a limiting seat 12. The support base 11 can be detachably installed on the testing equipment. The support base 11 includes a support frame and fixing parts located at both ends of the support frame. The support frame has a gate-shaped structure, and the fixing parts are provided with mounting holes 111, which facilitate the detachable installation of the support base 11 on the testing equipment. The limiting seat 12 is detachably installed on the support base 11 and is detachably connected to the fixing cylinder 2. The limiting seat 12 is provided with limiting holes 10. By detachably installing the limiting seat 12 on the support base 11 and detachably connecting the limiting seat 12 to the fixing cylinder 2, different limiting seats 12 can be replaced according to different models of lenses 100, so that the lens fixing fixture can meet different usage requirements.

[0049] Optionally, such as Figure 5 As shown, the support base 11 is provided with a stepped hole 110, and the bottom of the limiting seat 12 is provided with a limiting step in the circumferential direction. The limiting seat 12 is installed in the stepped hole 110 through the limiting step, thereby limiting and supporting the limiting seat 12 in the stepped hole 110. The step hole 110 can limit the limiting seat 12 and also facilitate the installation and removal of the limiting seat 12.

[0050] In this embodiment, as Figures 6-8As shown, the limiting seat 12 has multiple first fixing holes 121 arranged circumferentially along the limiting hole 10, and the bottom of the fixing cylinder 2 has second fixing holes 211 corresponding to the first fixing holes 121. Each set of first fixing holes 121 and second fixing holes 211 is fixed by a fixing member 4. The fixing member 4 passes through the first fixing hole 121 and connects to the corresponding second fixing hole 211 to connect the limiting seat 12 and the fixing cylinder 2. The limiting seat 12 and the fixing cylinder 2 are firmly fixed by the above-mentioned fixing method, which is convenient for disassembly and assembly; moreover, the structure is simple and easy to manufacture.

[0051] Furthermore, the first fixing hole 121 includes a first hole segment and a second hole segment that are connected. The diameter of the first hole segment is larger than the diameter of the second hole segment. The first hole segment is located on the side of the second hole segment opposite to the fixing cylinder 2. The fixing member 4 extends into the first fixing hole 121 from the bottom of the limiting seat 12, and the head of the fixing member 4 is hidden in the first hole segment to prevent the fixing member 4 from extending out of the limiting seat 12. The second fixing hole 211 is a threaded hole, and the rod of the fixing member 4 passes through the second hole segment and is threadedly connected to the second fixing hole 211. In this embodiment, the fixing member 4 is a screw.

[0052] In this embodiment, six first fixing holes 121 are equally spaced along the circumference of the limiting hole 10, and second fixing holes 211 are provided one-to-one with the first fixing holes 121. The limiting seat 12 is connected to the fixing cylinder 2 by 6*M3 screws. In other embodiments, the number of first fixing holes 121 and the size of the screws are not limited to the examples above, and the number of first fixing holes 121 and the size and type of screws can be adjusted according to requirements.

[0053] Optionally, such as Figure 7 As shown, the limiting seat 12 has a groove 122 on the side facing the fixed cylinder 2, and a protrusion is provided in the groove 122. A limiting hole 10 is provided in the groove 122 corresponding to the position of the protrusion. The protrusion forms a limiting boss 123 on the outer periphery of the limiting hole 10. The annular end face of the lens 100 abuts against the limiting boss 123 (see...). Figure 4 By having the limiting boss 123 abut against the annular end face of the lens 100, the limiting hole 10 can help limit the lens 100 and prevent the lens 100 from moving along the axial direction of the limiting hole 10.

[0054] like Figure 9As shown, the fixed cylinder 2 includes a cylinder body 21 and a connecting part 22. The cylinder body 21 has a through hole extending axially through both ends of the cylinder body 21, and the through hole communicates with the limiting hole 10. The upper end face of the cylinder body 21 has an arc-shaped connecting part 22 aligned with the bending direction of the cylinder body 21. A fixed arm 31 is disposed on the connecting part 22, and a gap exists between the movable arm 32 and the cylinder body 21. The connecting part 22 is primarily for the installation of the fixed arm 31, and also allows for a gap between the movable arm 32 and the cylinder body 21, preventing rotational friction between the upper end face of the cylinder body 21 and the movable arm 32, thus facilitating the smooth rotation of the movable arm 32.

[0055] Optionally, one end of the fixed arm 31 that is hinged to the movable arm 32 extends out of the connecting portion 22 along the bending direction of the connecting portion 22. This arrangement can prevent interference with the rotation of the movable arm 32.

[0056] like Figure 9 and Figure 10 As shown, the fixed arm 31 includes a fixed body 311 and a fixed connecting ear 312, and the movable arm 32 includes a movable body 321 and a movable connecting ear 322. Both the fixed body 311 and the movable body 321 are arc-shaped structures and are arranged opposite to each other. One end of the fixed body 311 is hinged to the movable body 321, and the fixed body 311 and the movable body 321 can form a circular clamping space. The other end of the fixed body 311 is connected to the fixed connecting ear 312, and a locking member 33 is hinged on the fixed connecting ear 312. The end of the movable connecting ear 322 that is not hinged to the fixed body 311 is connected to the movable connecting ear 322, and a snap-fit ​​groove 320 is provided on the movable connecting ear 322. The cooperation between the fixed body 311 and the movable body 321 can clamp and lock the lens 100. The fixed connecting ear 312 facilitates the installation of the locking member 33, and the movable connecting ear 322 facilitates the setting of the snap-fit ​​groove 320. The structure of the fixed arm 31 and the movable arm 32 is simple and easy to manufacture.

[0057] Optionally, the fixed connecting ear 312 is provided with a mounting groove 3121, the extending direction of which is consistent with the extending direction of the snap-fit ​​groove 320. One end of the locking member 33 is hinged to the mounting groove 3121 via a pivot, and the other end of the locking member 33 is provided with a stop member 35. When the locking member 33 is snapped into the snap-fit ​​groove 320, the stop member 35 is located on the side of the movable arm 32 away from the fixed arm 31. The stop member 35 can limit the rotation of the movable arm 32 and prevent the movable arm 32 from opening in the locked state.

[0058] To improve the locking effect of the locking member 33, a flexible locking member 34 is provided in the locking groove 320. The flexible locking member 34 has a U-shaped structure, and the locking member 33 can be locked into or disengaged from the flexible locking member 34. The flexible locking member 34 can provide elastic clamping for the locking member 33, thereby improving the locking effect and preventing locking failure.

[0059] Furthermore, the flexible snap-fit ​​component 34 can be installed in the snap-fit ​​slot 320 via a connector, specifically by screws. Of course, the flexible snap-fit ​​component 34 can be installed in the snap-fit ​​slot 320 in other ways, such as snap-fit, plug-in, etc., as long as it can be installed in the snap-fit ​​slot 320.

[0060] This lens fixing fixture can be applied to the actual shooting of most zoom lenses 100. When assembling the lens fixing fixture, first lock the fixing cylinder 2 and the limiting seat 12 with 6*M3 screws, and then hinge the fixing arm 31 and the movable arm 32 with fixing rivets; then install the assembled structure on the support base 11, and finally fix the assembled lens fixing fixture on the testing equipment.

[0061] In use, first open the movable arm 32, put the actual shooting lens 100 into the fixed tube 2, and then rotate the locking part 33 to engage with the elastic locking part 34 to fix the actual shooting lens 100 before shooting with the lens 100. If there are other types of lenses 100 with different structures, the limit seat 12 of different structures can be replaced to adapt to the actual shooting of other lenses 100.

[0062] To ensure the accuracy of the actual shooting, the flatness of the bottom end face of the fixed cylinder 2, the mating surface of the limiting seat 12 and the supporting base 11 must be within 0.005mm.

[0063] The support base 11 needs to be installed on the testing equipment, and the fixing cylinder 2 needs to be installed above the limit seat 12. The positions of the two cannot be reversed.

[0064] When securing the limiting seat 12 and the fixing cylinder 2 with 6*M3 screws, ensure they are tightened securely and not loose.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lens fixing fixture for actual shooting, characterized in that, include: A support component (1) is provided with a limiting hole (10); A fixed cylinder (2) is disposed on the support assembly (1) and is coaxially and connected with the limiting hole (10). The lens (100) is installed in the fixed cylinder (2) and limited to the limiting hole (10). The clamping assembly (3) includes a fixed arm (31) and a movable arm (32) that are arranged opposite to each other and can form a clamping space. The fixed arm (31) is disposed on the fixed cylinder (2). One end of the fixed arm (31) is hinged to the movable arm (32), and the other end of the fixed arm (31) is hinged to a locking member (33). The movable arm (32) is provided with a snap-fit ​​groove (320). The locking member (33) can rotate to snap into or disengage from the snap-fit ​​groove (320) to lock or unlock the lens (100) located in the clamping space.

2. The real-shot lens fixing fixture according to claim 1, characterized in that, The snap-fit ​​groove (320) is provided with an elastic snap-fit ​​member (34), which has a U-shaped structure. The locking member (33) can snap into the elastic snap-fit ​​member (34) or disengage from the elastic snap-fit ​​member (34).

3. The real-shot lens fixing fixture according to claim 1, characterized in that, One end of the locking member (33) is hinged to the fixed arm (31), and the other end of the locking member (33) is provided with a stop member (35). When the locking member (33) is engaged in the locking groove (320), the stop member (35) is located on the side of the movable arm (32) away from the fixed arm (31).

4. The real-shot lens fixing fixture according to claim 1, characterized in that, The fixed cylinder (2) includes: The cylindrical body (21) has a through hole that extends through both ends of the cylindrical body (21) along its axial direction, and the through hole is connected to the limiting hole (10); The upper end face of the cylinder (21) is provided with an arc-shaped connecting part (22) that is consistent with the bending direction of the cylinder (21). The fixed arm (31) is provided in the connecting part (22), and there is a gap between the movable arm (32) and the cylinder (21).

5. The real-shot lens fixing fixture according to claim 4, characterized in that, One end of the fixed arm (31) that is hinged to the movable arm (32) extends out of the connecting part (22) along the bending direction of the connecting part (22).

6. The real-shot lens fixing fixture according to claim 1, characterized in that, The fixed arm (31) includes a fixed body (311) and a fixed connecting ear (312), and the movable arm (32) includes a movable body (321) and a movable connecting ear (322). The fixed body (311) and the movable body (321) are arranged opposite to each other, and one end of the fixed body (311) is hinged to the movable body (321). The fixed body (311) and the movable body (321) can form a circular clamping space. The other end of the fixed body (311) is connected to the fixed connecting ear (312), and the locking member (33) is hinged on the fixed connecting ear (312). The end of the movable connecting ear (322) that is not hinged to the fixed body (311) is connected to the movable connecting ear (322), and the movable connecting ear (322) is provided with the snap-fit ​​groove (320).

7. The real-shot lens fixing fixture according to claim 1, characterized in that, The support component (1) includes: Support base (11); The limiting seat (12) is detachably installed on the support base (11). The limiting seat (12) is detachably connected to the fixing cylinder (2). The limiting seat (12) is provided with the limiting hole (10).

8. The lens fixing fixture according to claim 7, characterized in that, The support base (11) is provided with a stepped hole (110), and the limiting seat (12) is limited and supported in the stepped hole (110).

9. The lens fixing fixture according to claim 7, characterized in that, The limiting seat (12) is provided with a plurality of first fixing holes (121) along the circumference of the limiting hole (10). The bottom of the fixing cylinder (2) is provided with second fixing holes (211) that correspond one-to-one with the first fixing holes (121). The fixing member (4) passes through the first fixing hole (121) and connects to the corresponding second fixing hole (211) to connect the limiting seat (12) and the fixing cylinder (2).

10. The real-shot lens fixing fixture according to claim 7, characterized in that, The limiting seat (12) has a groove (122) on the side facing the fixed cylinder (2), a protrusion is provided in the groove (122), and the limiting hole (10) is provided in the groove (122) corresponding to the position of the protrusion. The protrusion forms a limiting boss (123) on the outer periphery of the limiting hole (10), and the annular end face of the lens (100) abuts against the limiting boss (123).

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