Lens switching mechanism and lens assembly

Abstract

The utility model relates to the technical field of lenses, and discloses a lens switching mechanism and a lens assembly, the lens switching mechanism is arranged on a diaphragm adjusting ring of the lens assembly, a scale ring of the lens assembly is provided with a gear area, and the gear area comprises a plurality of clamping structures arranged at intervals; the lens switching mechanism comprises an adjusting assembly, the adjusting assembly is movably arranged on the diaphragm adjusting ring so as to conduct position switching between a first position extending into the gear area and a second position disengaging from the gear area, and when the adjusting assembly is located at the first position, when the diaphragm adjusting ring is made to rotate, the diaphragm adjusting ring rotates. The adjusting assembly can rotate to the position of the clamping structure and can be connected with the clamping structure in a clamped mode. According to the lens switching mechanism, the rotation modes of the diaphragm adjusting ring can be switched, different use requirements are met, and the customer experience is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of lens technology, and in particular to a lens switching mechanism and lens assembly. Background Technology

[0002] Currently, lens assemblies typically include an aperture assembly and an aperture adjustment ring for adjusting the aperture size. When the device is used in bright light, stopping down the aperture reduces the amount of light entering the lens assembly, resulting in a deeper depth of field and a sharper image. Conversely, when the device is used in low light, increasing the aperture increases the amount of light entering the lens assembly, resulting in a cleaner image with higher exposure and lower noise.

[0003] However, in the current technology, the aperture adjustment of the lens can only be used in one of two ways: stepless adjustment and step adjustment. This results in the lens component having limited functionality and being inconvenient to use, leading to a poor user experience. Utility Model Content

[0004] The purpose of this utility model is to propose a lens switching mechanism and lens assembly, which solves the technical problem that in the prior art, aperture adjustment can only be used in either stepless adjustment or level adjustment, resulting in limited functionality, inconvenience, and poor user experience.

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

[0006] This utility model provides a lens switching mechanism, which is disposed on the aperture adjustment ring of a lens assembly. The scale ring of the lens assembly is provided with a range area, and the range area includes multiple intermittently arranged engaging structures. The lens switching mechanism includes:

[0007] An adjustment component is movably disposed on the aperture adjustment ring to switch between a first position extending into the gear area and a second position disengaging from the gear area. When the adjustment component is in the first position, when the aperture adjustment ring is rotated, the adjustment component can rotate to the engagement structure position and engage with the engagement structure.

[0008] The lens switching mechanism is mounted on the aperture adjustment ring. The adjustment component of the mechanism is movably mounted on the aperture adjustment ring, switching between a first position (extending into the stop area) and a second position (disengaged from the stop area) to change the rotation mode of the aperture adjustment ring. When the adjustment component is in the first position, the aperture adjustment ring rotates, allowing it to rotate to the engaging structure and engage with it, resulting in a slight click when rotating the aperture adjustment ring. When the adjustment component is in the second position, it disengages from the stop area and cannot engage with the engaging structure, allowing for smoother rotation of the aperture adjustment ring. This lens switching mechanism allows for switching the rotation mode of the aperture adjustment ring, meeting different usage needs and enhancing the user experience.

[0009] As a preferred embodiment of the aforementioned lens switching mechanism, the adjustment component includes:

[0010] The base is movably disposed on the inner side of the aperture adjustment ring along the axial direction of the aperture adjustment ring, so as to move between the first position and the second position;

[0011] A locking component is disposed on the base, and the locking component can be locked with the locking structure;

[0012] The switch button is movably disposed on the outside of the light barrier adjustment ring along the axial direction of the light barrier adjustment ring and is connected to the base.

[0013] The adjustment component is installed on the base to engage the locking component; the locking component can engage with the locking structure to create a click-through sensation when the aperture adjustment ring rotates; the switch button is connected to the base, and by tossing the switch button, the base and locking component can be moved to switch the aperture adjustment ring rotation mode, which is quite convenient.

[0014] As a preferred embodiment of the above-mentioned lens switching mechanism, the base is provided with a receiving groove, which extends along the axial direction of the aperture adjustment ring;

[0015] The engaging assembly includes a ball and an elastic element, both of which are disposed within the receiving groove. One end of the elastic element abuts against the groove wall of the receiving groove, and the other end abuts against the ball. The elastic element is configured to drive the ball to engage with the engaging structure when the adjusting assembly extends into the gear position area and is positioned relative to the engaging structure.

[0016] The receiving groove on the base can limit the installation of the ball and the elastic element. When the adjusting component extends into the gear position area and is positioned relative to the engaging structure, the elastic element can drive the ball to engage with the engaging structure. The engaging component has a simple structure and is easy to manufacture.

[0017] As a preferred embodiment of the aforementioned lens switching mechanism, the lens switching mechanism further includes:

[0018] An elastic locking member is mounted on the aperture adjustment ring. The elastic locking member is configured to lock the adjustment component when the adjustment component is in the first position, and to elastically deform when the adjustment component is driven away from the first position to unlock the adjustment component.

[0019] The elastic locking element locks the adjustment component when it is in the first position, thereby stabilizing the aperture adjustment ring in a mode with a click-like rotation. When the adjustment component is disengaged from the first position, the elastic locking element deforms elastically, thereby unlocking the adjustment component to switch to another rotation mode.

[0020] As a preferred embodiment of the aforementioned lens switching mechanism, the elastic locking member includes:

[0021] The mounting part is connected to the aperture adjustment ring;

[0022] A locking part is provided on one side of the adjustment component. One end of the locking part is connected to the mounting part, and the other end is provided with a hook. A slot is provided on the side of the base facing the locking part, and the hook can be engaged with the slot.

[0023] The elastic locking component can be installed on the light gate adjustment ring through the mounting part. The locking part locks the adjustment component by engaging with the base through the hook on the locking part and the slot on the base. The elastic locking component has a simple structure and is easy to manufacture.

[0024] As a preferred embodiment of the above-mentioned lens switching mechanism, the side wall of the base is provided with a plurality of protrusions, and the slot is formed between two adjacent protrusions. The size of the protrusion along the axial direction of the aperture adjustment ring gradually decreases from one end connected to the base to the other end. The upper and lower surfaces of the protrusion along the axial direction of the aperture adjustment ring are inclined in opposite directions.

[0025] The above-mentioned configuration can guide the elastic locking element into and out of the slot through the protruding structure, thus avoiding interference with the locking and disassembly of the elastic locking element and the adjustment assembly.

[0026] As a preferred embodiment of the above-mentioned lens switching mechanism, a limiting groove is provided on the outer side of the aperture adjustment ring, the limiting groove extends along the axial direction of the aperture adjustment ring, the switch button is installed in the limiting groove, and can move along the extension direction of the limiting groove.

[0027] The bottom of the limiting groove is provided with a through hole that passes through the light barrier adjusting ring. The through hole extends along the axial direction of the light barrier adjusting ring. The switch button is connected to the base through a connector. The connector passes through the through hole and can move along the extension direction of the through hole.

[0028] The limit groove can not only enable the switch button to move, but also limit the movement of the switch button, allowing the switch button to move between the first position and the second position.

[0029] The through-hole of the limiting groove can avoid the movement of the connecting parts and prevent interference with the movement of the base and switch button.

[0030] As a preferred embodiment of the aforementioned lens switching mechanism, a guide groove is provided on the inner side of the aperture adjustment ring, the guide groove extends along the axial direction of the aperture adjustment ring, and the base is slidably disposed within the guide groove.

[0031] The guide groove can guide the movement of the base and prevent the base from tilting during the movement.

[0032] As a preferred embodiment of the above-mentioned lens switching mechanism, the locking structure is a locking groove provided on the scale ring, and the locking groove has an opening on the side facing the lens switching mechanism, so that the adjustment component can extend into the locking groove through the opening.

[0033] The locking structure is a locking groove. The ball bearing of the adjusting component can extend into the locking groove through the opening of the locking groove and engage with it, thus creating a locking sensation when the aperture adjustment ring rotates.

[0034] This utility model also provides a lens assembly, including:

[0035] Main tube;

[0036] An aperture adjustment ring is rotatably sleeved on the main tube, and the lens switching mechanism described above is set on the aperture adjustment ring;

[0037] A scale ring is fitted onto the main cylinder and located on one side of the aperture adjustment ring. The scale ring has a stop area, which includes multiple interlocking structures.

[0038] This lens assembly, through the aforementioned lens switching mechanism, enables the adjustment of the aperture adjustment ring rotation mode to meet different user needs and enhance the user experience.

[0039] The beneficial effects of this utility model are:

[0040] The lens switching mechanism proposed in this utility model is mounted on an aperture adjustment ring. The adjusting component of the lens switching mechanism is movably mounted on the aperture adjustment ring, switching between a first position extending into the stop area and a second position disengaged from the stop area to switch the rotation mode of the aperture adjustment ring. When the adjusting component is in the first position, the aperture adjustment ring rotates, allowing the adjusting component to rotate to the engaging structure position and engage with it, resulting in a tactile click when rotating the aperture adjustment ring. When the adjusting component is in the second position, it disengages from the stop area and cannot engage with the engaging structure, allowing for smoother rotation of the aperture adjustment ring. This lens switching mechanism can switch the rotation mode of the aperture adjustment ring to meet different usage needs and enhance the user experience.

[0041] The lens assembly proposed in this invention can adjust the rotation mode of the aperture adjustment ring through the aforementioned lens switching mechanism to meet different user needs and enhance the user experience. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the lens assembly provided by this utility model;

[0043] Figure 2 yes Figure 1 A sectional view along line AA.

[0044] Figure 3 This is a schematic diagram of the first structure of the lens switching mechanism provided by this utility model installed on the aperture adjustment ring;

[0045] Figure 4 This is a schematic diagram of the second structure of the lens switching mechanism provided by this utility model, installed on the aperture adjustment ring;

[0046] Figure 5 This is a schematic diagram of the scale ring provided by this utility model;

[0047] Figure 6 This is a schematic diagram of the lens switching mechanism provided by this utility model;

[0048] Figure 7 This is a schematic diagram of the first structure of the aperture adjustment ring provided by this utility model;

[0049] Figure 8 This is a schematic diagram of the second structure of the aperture adjustment ring provided by this utility model.

[0050] In the picture:

[0051] 100. Lens switching mechanism;

[0052] 1. Adjustment component; 11. Base; 111. Receiving groove; 112. Slot; 113. Protrusion; 12. Engaging component; 121. Ball bearing; 122. Elastic element; 13. Switch button;

[0053] 2. Elastic locking element; 21. Mounting part; 22. Locking part; 220. Hook;

[0054] 200. Light barrier adjustment ring; 201. First ring body; 2011. Limiting groove; 2012. Through hole; 2013. Guide groove; 202. Second ring body; 2021. Notch structure; 2022. Connecting arm;

[0055] 300. Scale ring; 301. Gear shift area; 302. Engaging structure;

[0056] 400mm, Main tube; 500mm, Distance adjustment ring; 600mm, Aperture assembly; 700mm, Lens element 1; 800mm, Lens element 2;

[0057] 1000, Pressure ring one; 2000, Appearance pressure ring; 3000, Spacer pressure ring; 4000, Frame; 5000, Pressure ring two; 6000, Adapter tube; 7000, Interface. Detailed Implementation

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] like Figure 1 and Figure 2 As shown, this embodiment provides a lens assembly, including a main barrel 400, an aperture adjustment ring 200, a scale ring 300, an object distance adjustment ring 500, an aperture assembly 600, a first lens element 700, a second lens element 800, etc.

[0063] Specifically, when assembling the lens assembly, lens element 700 is inserted into the inner side of the main barrel 400 and locked in place by retaining ring 1000, then outer retaining ring 2000 is assembled; object distance adjustment ring 500 is inserted and locked in place by screwing in spacer ring 3000; aperture assembly 600 is inserted and aperture adjustment ring 200 is inserted; scale ring 300 is inserted and fixed with screws; lens element 800 is installed in the lens frame 4000 and retaining ring 5000 is installed; adapter tube 6000 and retaining ring 5000 are screwed into the lens frame 4000 to connect and assemble them together; adapter tube 6000 is connected to the main barrel 400 with screws, and finally the interface 7000 and adapter tube 6000 are connected with screws.

[0064] It should be noted that the structure of the lens assembly and the connection between them are existing technologies and will not be described in detail here.

[0065] When using a lens assembly in bright light, the aperture is narrowed to reduce the amount of light entering the lens assembly, resulting in a deeper depth of field and a sharper image. Conversely, when using a lens assembly in low light, the aperture is widened to increase the amount of light entering the lens assembly, resulting in a cleaner image with higher exposure and lower noise.

[0066] However, in the current technology, the aperture adjustment of the lens can only be used in one of two ways: stepless adjustment and step adjustment. This results in limited functionality, inconvenience, and a poor user experience.

[0067] To solve the above problems, such as Figure 3 and Figure 4 As shown, this embodiment provides a lens switching mechanism 100, which is disposed on the aperture adjustment ring 200 of the lens assembly. The scale ring 300 of the lens assembly has multiple gear scales, and a gear area 301 is provided on the inner circumference of the scale ring 300. The gear area 301 includes multiple spaced-apart engaging structures 302 (see...). Figure 5 The engaging structure 302 is set one-to-one with the gear scale; the lens switching mechanism 100 includes an adjustment component 1, which is movably set on the aperture adjustment ring 200 to switch between a first position extending into the gear area 301 and a second position disengaging from the gear area 301. When the adjustment component 1 is in the first position, when the aperture adjustment ring 200 is rotated, the adjustment component 1 can rotate to the position of the engaging structure 302 and engage with the engaging structure 302.

[0068] The lens switching mechanism 100 is mounted on the aperture adjustment ring 200. The adjustment component 1 of the lens switching mechanism 100 is movably mounted on the aperture adjustment ring 200 to switch positions between a first position extending into the stop area 301 and a second position disengaging from the stop area 301, thereby switching the rotation mode of the aperture adjustment ring 200. When the adjustment component 1 is in the first position, the aperture adjustment ring 200 rotates, allowing it to rotate to the engaging structure 302 and engage with it, resulting in a slight click when rotating the aperture adjustment ring 200. When the adjustment component 1 is in the second position, it disengages from the stop area 301 and cannot engage with the engaging structure 302, making rotation of the aperture adjustment ring 200 smoother. This lens switching mechanism 100 can switch the rotation mode of the aperture adjustment ring 200 to meet different usage needs and enhance the user experience.

[0069] It should be noted that the adjustment component 1 is engaged with the locking structure 302, and will not interfere with the rotation of the aperture adjustment ring 200. It will only cause a jam when the adjustment component 1 rotates to the position corresponding to the locking structure 302.

[0070] Specifically, such as Figure 3 and Figure 6As shown, the adjustment assembly 1 includes a base 11, a locking assembly 12, and a switch button 13. The base 11 is movably disposed on the inner side of the aperture adjustment ring 200 along the axial direction of the aperture adjustment ring 200, so as to move between a first position and a second position. The locking assembly 12 is disposed on the base 11 and can be engaged with the locking structure 302. The switch button 13 is movably disposed on the outer side of the aperture adjustment ring 200 along the axial direction of the aperture adjustment ring 200 and is connected to the base 11. The adjustment assembly 1 uses the base 11 to install the locking assembly 12. The locking assembly 12 can be engaged with the locking structure 302 to generate a locking sensation when the aperture adjustment ring 200 rotates. The switch button 13 is connected to the base 11. By toggling the switch button 13, the base 11 and the locking assembly 12 can be moved to switch the rotation mode of the aperture adjustment ring 200, making the switching operation convenient.

[0071] Furthermore, the switch button 13 and the base 11 are connected by screws. After the switch button 13 and the base 11 are connected by screws, they are fixed again with glue to ensure the connection strength between the switch button 13 and the base 11.

[0072] Furthermore, the engaging assembly 12 includes a ball bearing 121 and an elastic element 122. A receiving groove 111 is provided on the base 11, extending axially along the aperture adjustment ring 200. Both the ball bearing 121 and the elastic element 122 are disposed within the receiving groove 111. One end of the elastic element 122 abuts against the groove wall of the receiving groove 111, and the other end abuts against the ball bearing 121. When the adjusting assembly 1 extends into the stop area 301 and is aligned with the engaging structure 302, the elastic element 122 can drive the ball bearing 121 to engage with the engaging structure 302. The receiving groove 111 on the base 11 can limit the installation of the ball bearing 121 and the elastic element 122. When the adjusting assembly 1 extends into the stop area 301 and is aligned with the engaging structure 302, the elastic element 122 can drive the ball bearing 121 to engage with the engaging structure 302. This engaging assembly 12 has a simple structure and is easy to manufacture.

[0073] In this embodiment, the elastic element 122 is a spring, which has a simple structure and low cost.

[0074] In this embodiment, as Figure 5 As shown, the locking structure 302 is a locking groove provided on the scale ring 300. The locking groove has an opening on the side facing the lens switching mechanism 100. The ball bearing 121 of the adjustment component 1 can extend into the locking groove through the opening and engage with the locking groove, thereby generating a locking sensation when the aperture adjustment ring 200 rotates.

[0075] Optionally, such as Figure 6As shown, the lens switching mechanism 100 also includes an elastic locking member 2, which is installed on the aperture adjustment ring 200. The elastic locking member 2 is configured to lock the adjustment component 1 when it is in the first position, and to elastically deform when the adjustment component 1 is driven out of the first position to unlock the adjustment component 1. When the adjustment component 1 is in the first position, the elastic locking member 2 locks the adjustment component 1, thereby stabilizing the aperture adjustment ring 200 in a mode where rotation has a click-through feel, i.e., the gear adjustment mode; when the adjustment component 1 is out of the first position, the elastic locking member 2 elastically deforms, thereby unlocking the adjustment component 1 to switch to another rotation mode, i.e., switching to the stepless adjustment mode.

[0076] Specifically, the elastic locking member 2 includes a mounting part 21 and a locking part 22. The mounting part 21 is connected to the light barrier adjustment ring 200. The locking part 22 is disposed on one side of the adjustment component 1. One end of the locking part 22 is connected to the mounting part 21, and the other end is provided with a hook 220. A slot 112 is provided on the side of the base 11 facing the locking part 22, and the hook 220 can engage with the slot 112. The elastic locking member 2 can be mounted on the light barrier adjustment ring 200 through the mounting part 21. By engaging the hook 220 on the locking part 22 with the slot 112 of the base 11, the elastic locking member 2 locks the adjustment component 1. When the adjustment component 1 is moved to the second position by a force, the elastic locking member 2 undergoes elastic deformation and gradually disengages from the slot 112, thereby unlocking the adjustment component 1. The elastic locking member 2 has a simple structure and is easy to manufacture.

[0077] Furthermore, such as Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the light gate adjustment ring 200 includes a first ring body 201 and a second ring body 202 coaxially arranged. The adjustment component 1 is movably disposed inside the first ring body 201 and can extend into the position of the second ring body 202 along the circumference of the first ring body 201. The second ring body 202 is provided with a notch structure 2021, and the adjustment component 1 can extend into the notch structure 2021. In order to facilitate the installation of the elastic locking member 2, a connecting arm 2022 is provided at the end of the second ring body 202 away from the first ring body 201. The connecting arm 2022 extends into the notch structure 2021, and there is a gap between the connecting arm 2022 and the end face of the first ring body 201. The mounting part 21 is connected to the connecting arm 2022, and the locking part 22 extends into the gap from the notch structure 2021 and is located on one side of the base 11. The connecting arm 2022 limits the movement of the base 11. When the base 11 moves to the first position, the base 11 and the connecting arm 2022 abut against each other.

[0078] Optionally, the elastic locking member 2 and the aperture adjustment ring 200 are detachably connected to facilitate maintenance and replacement of the elastic locking member 2. In this embodiment, the mounting portion 21 of the elastic locking member 2 and the connecting arm 2022 of the aperture adjustment ring 200 are connected by screws. In other embodiments, the connection method between the elastic locking member 2 and the aperture adjustment ring 200 is not limited to screw connection, but can also be a snap-fit, plug-in, or other methods.

[0079] Preferably, the elastic locking element 2 is integrally bent from a spring sheet, which has a simple structure and is relatively easy to manufacture.

[0080] Optionally, such as Figure 6 As shown, the sidewall of the base 11 is provided with multiple protrusions 113, and a groove 112 is formed between two adjacent protrusions 113. The axial dimension of the protrusion 113 along the aperture adjustment ring 200 gradually decreases from the end connected to the base 11 to the other end. The upper and lower surfaces of the protrusion 113 along the axial direction of the aperture adjustment ring 200 are inclined in opposite directions. The above arrangement can guide the elastic locking member 2 to extend into and exit the groove 112 through the protrusions 113, avoiding interference with the locking and disassembly of the elastic locking member 2 and the adjustment assembly 1.

[0081] Optionally, such as Figure 3 and Figure 7 As shown, a limiting groove 2011 is provided on the outer side of the first ring body 201 of the aperture adjustment ring 200. The limiting groove 2011 extends along the axial direction of the aperture adjustment ring 200. The switch button 13 is installed in the limiting groove 2011 and can move along the extension direction of the limiting groove 2011. A through hole 2012 is provided at the bottom of the limiting groove 2011, which extends along the axial direction of the aperture adjustment ring 200. The switch button 13 is connected to the base 11 by a connector (screw). The connector passes through the through hole 2012 and can move along the extension direction of the through hole 2012. The limiting groove 2011 enables the installation of the switch button 13 and also limits the movement of the switch button 13, allowing the switch button 13 to move between the first position and the second position. The through hole 2012 of the limiting groove 2011 can avoid the movement of the connecting parts, thus preventing interference with the movement of the base 11 and the switch button 13.

[0082] Furthermore, the length of the limiting groove 2011 is adapted to the moving distance of the adjusting component 1, that is, when the switch button 13 of the adjusting component 1 moves to the first position and the second position, the switch button 13 abuts against the two ends of the limiting groove 2011 respectively.

[0083] Optionally, a guide groove 2013 is provided on the inner side of the first ring body 201 of the aperture adjustment ring 200. The guide groove 2013 extends along the axial direction of the aperture adjustment ring 200, and the base 11 is slidably disposed in the guide groove 2013. The guide groove 2013 can guide the movement of the base 11 and prevent the base 11 from deflecting during the movement.

[0084] To facilitate user operation, an indicator is provided on the outer side of the aperture adjustment ring 200. In this embodiment, the indicator is a text label. When the adjustment component 1 is in the first position, the side of the location of the switch button 13 is marked "Clicked"; when the adjustment component 1 is in the second position, the side of the location of the switch button 13 is marked "DE-Clicked". The text label clearly indicates the adjustment mode of the aperture adjustment ring 200. In other embodiments, the indicator is not limited to text labels, but can also be a graphic representation, character label, etc., which is not specifically limited here.

[0085] Assembly sequence of lens switching mechanism 100:

[0086] Step 1: Install the base 11 into the guide groove 2013 of the aperture adjustment ring 200.

[0087] Step 2: Install the switch button 13 into the limiting groove 2011 of the light bar adjustment ring 200;

[0088] Part 3: Drive in screws, which pass through the through hole 2012 to fix the base 11 and the switch button 13, and apply glue to the screws to fix them again.

[0089] Step 4: Insert springs and ball bearings 121 into the receiving groove 111 of the base 11;

[0090] Step 5: Install the elastic locking element 2 onto the connecting arm 2022 and secure it with screws.

[0091] After the above steps, the lens switching mechanism 100 is installed, forming an aperture adjustment ring 200 assembly with the lens switching mechanism 100 and the aperture adjustment ring 200.

[0092] Working principle of lens switching mechanism 100:

[0093] When the switch is set to DE-Clicked, the ball bearing 121 does not contact the gear position 301 of the scale ring 300. At this time, when the aperture adjustment ring 200 is rotated, the aperture adjustment ring 200 does not make a clicking sound, and it is in stepless adjustment mode.

[0094] When the switch is turned to the Clicked position, the ball 121 contacts the scale ring 300 and falls into the locking groove. At this time, the aperture adjustment ring 200 is rotated, and the aperture adjustment ring 200 makes a clicking sound. At this time, the gear adjustment mode is in operation.

[0095] The lens switching mechanism 100 can switch the rotation mode of the aperture adjustment ring 200. When the adjustment component 1 is in the first position, the aperture adjustment ring 200 rotates, and the adjustment component 1 can rotate to the position of the locking structure 302 and engage with the locking structure 302, so that there is a sense of stopping when rotating the aperture adjustment ring 200. When the adjustment component 1 is in the second position, the adjustment component 1 disengages from the stop area 301 and cannot engage with the locking structure 302, so the rotation of the aperture adjustment ring 200 is smoother. The lens switching mechanism 100 can switch the rotation mode of the aperture adjustment ring 200 to meet different usage needs and enhance the customer experience.

[0096] 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 switching mechanism, characterized in that, The aperture adjustment ring (200) of the lens assembly is provided with a stop area (301), which includes a plurality of spaced-apart locking structures (302); the lens switching mechanism (100) includes: An adjustment component (1) is movably disposed on the aperture adjustment ring (200) to switch positions between a first position extending into the gear area (301) and a second position disengaging from the gear area (301). When the adjustment component (1) is in the first position, when the aperture adjustment ring (200) is rotated, the adjustment component (1) can rotate to the position of the engaging structure (302) and engage with the engaging structure (302).

2. The lens switching mechanism according to claim 1, characterized in that, The adjustment component (1) includes: The base (11) is movably disposed on the inner side of the aperture adjustment ring (200) along the axial direction of the aperture adjustment ring (200) so as to move between the first position and the second position; A locking component (12) is disposed on the base (11), and the locking component (12) can be engaged with the locking structure (302); The switch button (13) is movably disposed on the outside of the light barrier adjustment ring (200) along the axial direction of the light barrier adjustment ring (200) and is connected to the base (11).

3. The lens switching mechanism according to claim 2, characterized in that, The base (11) is provided with a receiving groove (111), which extends along the axial direction of the light barrier adjustment ring (200); The engaging assembly (12) includes a ball (121) and an elastic element (122). Both the ball (121) and the elastic element (122) are disposed in the receiving groove (111). One end of the elastic element (122) abuts against the groove wall of the receiving groove (111), and the other end abuts against the ball (121). The elastic element (122) is configured to drive the ball (121) to engage with the engaging structure (302) when the adjusting assembly (1) extends into the gear area (301) and is positioned opposite the engaging structure (302).

4. The lens switching mechanism according to claim 2, characterized in that, The lens switching mechanism (100) also includes: An elastic locking member (2) is mounted on the light-adjusting ring (200). The elastic locking member (2) is configured to lock the adjusting component (1) when the adjusting component (1) is in the first position, and to elastically deform when the adjusting component (1) is driven away from the first position to unlock the adjusting component (1).

5. The lens switching mechanism according to claim 4, characterized in that, The elastic locking element (2) includes: The mounting part (21) is connected to the aperture adjustment ring (200); A locking part (22) is provided on one side of the adjustment component (1). One end of the locking part (22) is connected to the mounting part (21), and the other end is provided with a hook (220). A slot (112) is provided on the side of the base (11) facing the locking part (22), and the hook (220) can be engaged with the slot (112).

6. The lens switching mechanism according to claim 5, characterized in that, The base (11) has a plurality of protrusions (113) on its sidewall, and a slot (112) is formed between two adjacent protrusions (113). The size of the protrusion (113) along the axial direction of the aperture adjustment ring (200) gradually decreases from one end connected to the base (11) to the other end. The upper and lower surfaces of the protrusion (113) along the axial direction of the aperture adjustment ring (200) are inclined in opposite directions.

7. The lens switching mechanism according to claim 2, characterized in that, A limiting groove (2011) is provided on the outer side of the light barrier adjustment ring (200). The limiting groove (2011) extends along the axial direction of the light barrier adjustment ring (200). The switch button (13) is installed in the limiting groove (2011) and can move along the extension direction of the limiting groove (2011). The bottom of the limiting groove (2011) is provided with a through hole (2012) that passes through the light barrier adjustment ring (200). The through hole (2012) extends along the axial direction of the light barrier adjustment ring (200). The switch button (13) is connected to the base (11) through a connector. The connector passes through the through hole (2012) and can move along the extension direction of the through hole (2012).

8. The lens switching mechanism according to claim 2, characterized in that, The inner side of the light barrier adjustment ring (200) is provided with a guide groove (2013), the guide groove (2013) extends along the axial direction of the light barrier adjustment ring (200), and the base (11) is slidably disposed in the guide groove (2013).

9. The lens switching mechanism according to claim 1, characterized in that, The locking structure (302) is a locking groove provided on the scale ring (300). The locking groove has an opening on the side facing the lens switching mechanism (100). The adjustment component (1) can extend into the locking groove through the opening.

10. A lens assembly, characterized in that, include: Main tube (400); An aperture adjustment ring (200) is rotatably sleeved on the main cylinder (400), and the lens switching mechanism as described in any one of claims 1-9 is disposed on the aperture adjustment ring (200); A scale ring (300) is sleeved on the main cylinder (400) and located on one side of the aperture adjustment ring (200). The scale ring (300) is provided with a gear area (301), which includes a plurality of interlocking structures (302) spaced apart.

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