Covering door and optical lens

Abstract

The utility model provides a shielding door and an optical lens, and the shielding door comprises a locking plate which is provided with a first end face and a second end face, and the second end face is used for attaching an optical lens main body; the shading plate is arranged on the first end face of the locking plate. The buckle block is arranged on the second end face of the locking plate. The locking mechanism is arranged on the first end face of the locking plate. Wherein the locking plate is provided with a light emitting opening; the shading plate is arranged around the light outlet opening; the locking mechanism comprises a locking main body arranged on the locking plate and a locking block arranged on the locking main body, and the locking block can stretch out and draw back relative to the locking main body; the locking block protrudes out of the second end face when stretching out relative to the telescopic locking body so that a locking space used for locking the optical lens body and the shielding door can be formed between the locking block and the buckle block. And the locking block is used for separating the shielding door from the optical lens main body when retracting relative to the locking main body. By adopting the above technical scheme, the dismounting operation between the optical lens and the optical lens main body is simple, and the operation convenience degree of a user can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical lens, more specifically, relate to a shutter and optical lens. BACKGROUND

[0002] The shutter is mainly composed of a light shield and a transmission mechanism. The shutter controls the brightness and direction of light by opening and closing the light shield. The main function of the shutter is to control the brightness and direction of light to meet the lighting needs in different scenes. In the case of anti-glare and reflection, the shutter can effectively reduce the intensity of light and improve the comfort of lighting. In the case of spotlighting and illuminating a local area, the direction of the light shield can be adjusted to achieve the purpose of lighting.

[0003] The shutter needs to be fixed on the main body of the optical lens. However, the existing shutter uses a buckle to fix it. This method requires the operator to lock or unlock the buckle structure one by one, which is not convenient to operate, resulting in low disassembly efficiency of the shutter. SUMMARY

[0004] The utility model aims at providing a shutter and optical lens to solve the technical problem of complicated operation of the disassembly structure of the shutter in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] In the first aspect, a shutter is provided, comprising:

[0007] A locking plate has a first end face and a second end face arranged opposite to each other. The second end face is used to attach the main body of the optical lens.

[0008] A light shield is provided on the first end face of the locking plate.

[0009] A buckle block is provided on the second end face of the locking plate.

[0010] A locking mechanism is provided on the first end face of the locking plate. The locking plate has a light outlet opening corresponding to the light outlet area of the main body of the optical lens. The light shield is arranged around the light outlet opening. The locking mechanism includes a locking main body provided on the locking plate and a locking block provided on the locking main body. The locking block can extend and retract relative to the locking main body.

[0011] When the locking block extends relative to the locking main body, it protrudes from the second end face to form a locking space between the buckle block and the locking block for locking the main body of the optical lens and the shutter. When the locking block retracts relative to the locking main body, it forms an opening for separating the shutter and the main body of the optical lens.

[0012] By adopting the technical scheme, the lock block is arranged to be retractable, so that a locking space is formed between the lock block and the buckle block, and the disassembly and assembly operation between the optical lens body is simple, thereby improving the operation convenience of the user.

[0013] In one embodiment, the locking mechanism further comprises a driving block arranged on the locking body, the driving block being capable of sliding relative to the locking body, the driving block being provided with a driving surface, the driving surface being in sliding connection with the lock block and being used for driving the lock block to retract relative to the locking body.

[0014] The locking mechanism further comprises an elastic member connecting the locking body and the lock block, the elastic member being used for driving the lock block to extend out of the first sliding groove.

[0015] In one embodiment, the locking body is provided with a first sliding groove and a second sliding groove in communication with the first sliding groove, the length direction of the first sliding groove being perpendicular to the length direction of the second sliding groove, the lock block being arranged in the first sliding groove and being capable of moving along the length direction of the first sliding groove, the driving block being arranged in the second sliding groove and being capable of moving along the length direction of the second sliding groove, and the driving surface being arranged obliquely relative to the length direction of the second sliding groove.

[0016] In one embodiment, the lock block is provided with a matching surface in sliding connection with the driving surface, the matching surface being arranged obliquely relative to the length direction of the first sliding groove.

[0017] In one embodiment, the lock block is provided with a locking surface used for locking on the optical lens body, the locking surface being exposed out of the first sliding groove when the lock block extends relative to the locking body.

[0018] In one embodiment, the locking mechanism further comprises a lever block connected with the driving block and used for driving the driving block to move, the lever block being provided with an end portion exposed out of the second sliding groove.

[0019] In one embodiment, the buckle block is provided with a buckle groove used for clamping on the optical lens body, the buckle groove being used for blocking the optical lens body along the axial direction and the radial direction of the light outlet opening, and the lock block being used for blocking the movement of the optical lens body along the radial direction of the light outlet opening when the lock block extends.

[0020] In one embodiment, the number of the buckle blocks is multiple, and the multiple buckle blocks and the locking mechanism are arranged along the circumferential direction of the light outlet opening.

[0021] In one embodiment, the number of the locking mechanisms is multiple.

[0022] In one embodiment, two of the locking mechanisms are radially symmetrical along the light-out opening, and two of the buckle blocks are radially symmetrical along the light-out opening.

[0023] In a second aspect, an optical lens is provided, comprising an optical lens body and the shutter as described above, the shutter being detachably arranged on the optical lens body.

[0024] By adopting the technical solutions described above, the optical lens of the embodiment has the advantages of convenient disassembly and assembly on the basis of the advantages of the shutter of the above-described embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0026] Figure 1 is a perspective view of the shutter provided by the embodiment of the present application.

[0027] Figure 2 is an exploded view of the shutter provided by the embodiment of the present application.

[0028] Figure 3 is a sectional view of the shutter provided by the embodiment of the present application.

[0029] Figure 4 is a perspective view of the shutter provided by the embodiment of the present application.

[0030] Figure 5 is a perspective view of the shutter provided by the embodiment of the present application.

[0031] Figure 6 is an enlarged view of "A" in Figure 2

[0032] In the drawings, the reference signs are as follows:

[0033] 1, locking plate; 2, light-shielding plate; 3, buckle block; 4, locking mechanism; 5, optical lens body;

[0034] 11, light-out opening; 31, buckle groove; 41, locking main body; 42, locking block; 43, driving block; 44, elastic member; 45, lever block;

[0035] 431, driving surface; 411, first sliding groove; 412, second sliding groove; 421, matching surface; 422, locking surface. DETAILED DESCRIPTION ​

[0036] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer and more apparent, the utility model will be described in further detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the utility model and not to limit the utility model.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely intended to facilitate the description of the utility model, and are not intended to indicate that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0039] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating relative importance or indicating the number of technical features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified. The specific implementation of the utility model will be described in more detail below in combination with specific embodiments:

[0040] As shown in Figure 1 and Figure 2 The utility model embodiment provides a shutter for installing on an optical lens body 5, which controls the brightness and direction of light to meet the lighting needs in different scenes. The disassembly and assembly operation between the shutter and the optical lens body 5 is simple, which is beneficial to improve the operation convenience of the user. The specific implementation will be described below:

[0041] Please refer to Figures 3 to 5 , the shutter comprises:

[0042] A locking plate 1 has a first end face 101 and a second end face 102 arranged opposite to each other, and the second end face 102 is used for attaching the optical lens body 5;

[0043] A light shield plate 2 is arranged on the first end face 101 of the locking plate 1;

[0044] A buckle block 3 is arranged on the second end face 102 of the locking plate 1;

[0045] The locking mechanism 4 is arranged on the first end surface 101 of the locking plate 1; wherein the locking plate 1 is provided with a light outlet opening 11 corresponding to the light outlet area of the optical lens body 5; the light shielding plate 2 is arranged around the light outlet opening 11; the locking mechanism 4 comprises a locking main body 41 arranged on the locking plate 1 and a locking block 42 arranged on the locking main body 41, and the locking block 42 can be extended and retracted relative to the locking main body 41.

[0046] When the locking block 42 is extended relative to the locking main body 41, the locking block 42 protrudes from the second end surface 102 to form a locking space with the buckle block 3 for locking the optical lens body 5 and the shutter; when the locking block 42 is retracted relative to the locking main body 41, an opening is formed for separating the shutter and the optical lens.

[0047] Here, it can be understood that the locking plate 1 refers to a plate-shaped member for connecting with the optical lens body 5; the locking plate 1 is used to connect the light shielding plate 2, the buckle block 3 and the locking mechanism 4; the locking plate 1 is provided with a light outlet opening 11, and the shape and size of the light outlet opening 11 match the shape and size of the light outlet area of the optical lens body 5, so that the light outlet of the light outlet area can be emitted from the light outlet opening 11; the locking plate is provided with a first end surface 101 and a second end surface 102, wherein the first end surface 101 and the second end surface 102 are arranged opposite to each other, the first end surface 101 is used to arrange the light shielding plate 2 and the locking mechanism 4, and the second end surface 102 is used to arrange the buckle block 3 and attach the optical lens body 5;

[0048] The light shielding plate 2 refers to a plate-shaped member for adjusting the brightness and direction of light; the light shielding plate 2 is arranged on the first end surface 101 of the locking plate 1, and generally, the light shielding plate 2 can adjust the relative angle with the locking plate 1, thereby adjusting the brightness and direction of light;

[0049] The buckle block 3 refers to a block-shaped member for buckling connection on the optical lens body 5; the buckle block 3 is arranged on the second end surface 102 of the locking plate 1;

[0050] The locking mechanism 4 refers to a mechanism for locking the optical lens body 5; the locking mechanism 4 is arranged on the first end surface 101 of the locking plate 1; the locking mechanism 4 comprises a locking main body 41 and a locking block 42; the locking main body 41 is arranged on the locking plate 1, and the locking block 42 is arranged on the locking main body 41; since the locking main body 41 is arranged opposite to the buckle block 3, the locking block 42 is arranged opposite to the buckle block 3, and the locking block 42 can be extended and retracted relative to the locking main body 41; when the locking block 42 is extended relative to the locking main body 41, a locking space is formed between the locking block 42 and the buckle block 3, and the shape and size of the locking space match the shape and size of the optical lens body 5, so that the optical lens body 5 can be just positioned between the locking block 42 and the buckle block 3.

[0051] The working principle of the shutter provided by the embodiment is as follows:

[0052] The user retracts the locking block 42 relative to the locking body 41, covers the locking plate 1 on the optical lens body 5, wherein the light outlet opening 11 is opposite to the light outlet area, and the buckle block 3 is buckled on the optical lens body 5, at the same time, the locking block 42 is extended relative to the locking body 41, because the locking block 42 is opposite to the buckle block 3 and a locking space is formed between the two, the shape and size of the locking space match the shape and size on the optical lens body 5, so that the optical lens body 5 is just buckled in the locking space, thereby fixing the shutter on the optical lens body 5;

[0053] Similarly, the user retracts the locking block 42 relative to the locking body 41, and the locking space is no longer formed between the locking block 42 and the buckle block 3, and the locking block 42 forms an opening for separating the shutter and the optical lens when it is retracted relative to the locking body 41; the locking block 42 no longer limits the optical lens body 5, so that the optical lens body 5 is disconnected from the shutter.

[0054] By adopting the above technical scheme, the shutter is formed between the buckle block 3 and the locking block 42 by setting the retractable locking block 42, thereby making the disassembly and assembly operation between the shutter and the optical lens body 5 simple, and facilitating the operation convenience of the user.

[0055] In one embodiment, the locking mechanism 4 further comprises a driving block 43 provided on the locking body 41, the driving block 43 being capable of sliding relative to the locking body 41, the driving block 43 being provided with a driving surface 431, the driving surface 431 being in sliding connection with the locking block 42 and being used for driving the locking block 42 to retract relative to the locking body 41.

[0056] The locking mechanism 4 further comprises a resilient member 44 connecting the locking body 41 and the locking block 42, the resilient member 44 being used for driving the locking block 42 to extend out of the first sliding groove 411.

[0057] Here, it can be understood that the driving block 43 refers to a block-shaped member for driving the locking block 42 to extend and retract relative to the locking body 41; the driving block 43 is provided on the locking body 41, and the driving block 43 is also capable of extending and retracting relative to the locking body 41, the driving block 43 being provided with a driving surface 431, the driving surface 431 being used for sliding connection with the locking block 42, and the driving surface 431 being used for driving the locking block 42 to extend and retract; specifically, the driving surface 431 can abut on the locking block 42, the driving block 43 drives the driving surface 431 to extend and retract, the driving surface 431 abuts on the locking block 42, and the driving surface 431 pushes the locking block 42, so that the locking block 42 retracts.

[0058] The elastic member 44 is a component for providing the elastic force for enabling the locking block 42 to extend and retract in the first sliding groove 411; the elastic member 44 is connected to the locking main body 41 and the locking block 42, when the elastic member 44 is used to drive the locking block 42 to extend in the first sliding groove 411, the driving block 43 is used to drive the locking block 42 to retract in the first sliding groove 411; and when the elastic member 44 is used to drive the locking block 42 to retract in the first sliding groove 411, the driving block 43 is used to drive the locking block 42 to extend in the first sliding groove 411.

[0059] By adopting the above technical solution, the driving block 43 is used for the user to operate, and the user is facilitated to drive the locking block 42 to extend and retract relative to the locking main body 41 through the driving block 43.

[0060] In one embodiment, the locking main body 41 is provided with the first sliding groove 411 and the second sliding groove 412 in communication with the first sliding groove 411, the length direction of the first sliding groove 411 is perpendicular to the length direction of the second sliding groove 412, the locking block 42 is slidably arranged in the first sliding groove 411 and can move along the length direction of the first sliding groove 411, and the driving block 43 is slidably arranged in the second sliding groove 412 and can move along the length direction of the second sliding groove 412; the driving surface 431 is arranged obliquely relative to the length direction of the second sliding groove 412.

[0061] Here, it can be understood that the first sliding groove 411 and the second sliding groove 412 are arranged on the locking main body 41, the first sliding groove 411 is in communication with the second sliding groove 412, the first sliding groove 411 is arranged perpendicularly to the second sliding groove 412, that is, the length direction of the first sliding groove 411 is perpendicular to the length direction of the second sliding groove 412; the shape and size of the locking block 42 are matched with the shape and size of the first sliding groove 411, so that the locking block 42 is in clearance fit with the first sliding groove 411, that is, the locking block 42 can move along the length direction of the first sliding groove 411 in the first sliding groove 411; similarly, the shape and size of the driving block 43 are matched with the shape and size of the second sliding groove 412, so that the driving block 43 is in clearance fit with the second sliding groove 412, that is, the driving block 43 can move along the length direction of the second sliding groove 412 in the second sliding groove 412; the driving surface 431 is arranged obliquely relative to the length direction of the second sliding groove 412, so that when the driving block 43 is extended and retracted relative to the locking main body 41 along the length direction of the second sliding groove 412, the driving surface 431 is always arranged obliquely relative to the length direction of the second sliding groove 412, which facilitates the driving surface 431 to abut against the locking block 42.

[0062] It needs to be further explained that the slot wall of the first sliding groove 411 limits the locking block 42 to move along the length direction of the first sliding groove 411; similarly, the slot wall of the second sliding groove 412 limits the driving block 43 to move along the length direction of the second sliding groove 412.

[0063] By adopting the technical scheme, the driving block 43 and the locking block 42 move in the preset direction, and the cooperation of the two is easy to realize.

[0064] In one embodiment, the locking block 42 is provided with a cooperation surface 421 in sliding connection with the driving surface 431, and the cooperation surface 421 is arranged obliquely relative to the length direction of the first sliding groove 411.

[0065] Here, it can be understood that the locking block 42 is provided with the cooperation surface 421, the cooperation surface 421 is arranged obliquely, and the oblique direction of the cooperation surface 421 is parallel to the length direction of the first sliding groove 411. Preferably, the cooperation surface 421 is in surface contact with the driving surface 431 when abutting, so that the contact area of the two is increased, and the driving surface 431 is facilitated to push the cooperation surface 421.

[0066] By adopting the technical scheme, the pushing cooperation degree between the driving surface 431 and the cooperation surface 421 is improved.

[0067] In one embodiment, the locking block 42 is provided with a locking surface 422 for locking on the optical lens body 5, and the locking surface 422 is exposed outside the first sliding groove 411 when the locking block 42 extends relative to the locking body 41.

[0068] Here, it can be understood that the locking surface 422 is used for locking the optical lens body 5, that is, the locking surface 422 is used for abutting on the optical lens body 5; the locking block 42 is used for driving the locking surface 422 to extend relative to the locking body 41, and when the locking block 42 extends, the locking surface 422 is exposed outside the first sliding groove 411.

[0069] By adopting the technical scheme, the locking block 42 is facilitated to lock the optical lens body 5.

[0070] In one embodiment, the locking mechanism 4 further includes a lever block 45 connected with the driving block 43 and used for driving the driving block 43 to move, and the lever block 45 is provided with an end portion exposed outside the second sliding groove 412.

[0071] Here, it can be understood that the lever block 45 refers to a structure for being poked by a user; the lever block 45 is connected with the driving block 43, and the end portion of the lever block 45 is exposed outside the second sliding groove 412, so as to be convenient for the user to poke.

[0072] By adopting the technical scheme, the convenience degree of operation of the user is further improved.

[0073] Please refer to Figure 6In one embodiment, the buckle block 3 is provided with a buckle groove 31 for buckling on the optical lens body 5, the buckle groove 31 is used for blocking the optical lens body 5 along the axial direction and the radial direction of the light outlet opening 11, and the locking block 42 is used for blocking the radial movement of the optical lens body 5 along the light outlet opening 11 when the locking block 42 is extended.

[0074] Here, it can be understood that the shape and size of the buckle groove 31 match the shape and size of the optical lens body 5, so that the buckle groove 31 can be buckled on the optical lens body 5, for example, the buckle groove 31 is buckled on the edge portion of the optical lens body 5.

[0075] By adopting the above technical scheme, the stability of the buckle block 3 buckled on the optical lens body 5 is improved.

[0076] In one embodiment, the number of buckle blocks 3 is multiple, and the multiple buckle blocks 3 and the locking mechanism 4 are arranged along the circumferential direction of the light outlet opening 11.

[0077] It needs to be further explained that since the buckle block 3 and the locking mechanism 4 are arranged along the circumferential direction of the light outlet opening 11, the buckle block 3 and the locking mechanism 4 can limit the radial movement of the optical lens body 5, and also can limit the axial movement of the optical lens body 5.

[0078] By adopting the above technical scheme, the stability of the buckle block 3 buckled on the optical lens body 5 is improved.

[0079] In one embodiment, the number of locking mechanisms 4 is multiple.

[0080] By adopting the above technical scheme, the stability of the buckle block 3 buckled on the optical lens body 5 is improved.

[0081] In one embodiment, the two locking mechanisms 4 are radially symmetrical along the light outlet opening 11, and the two buckle blocks 3 are radially symmetrical along the light outlet opening 11.

[0082] Here, it can be understood that the two locking mechanisms 4 are oppositely arranged and located on the radial direction of the light outlet opening 11; similarly, the two buckle blocks 3 are oppositely arranged and located on the light outlet opening 11; in this way, the locking mechanism 4 and the light outlet opening 11 can limit the displacement of the optical lens body 5 in different radial directions of the light outlet opening 11, respectively.

[0083] By adopting the above technical scheme, the limiting effect of the locking mechanism 4 and the buckle block 3 in different directions is improved.

[0084] Secondly, an optical lens is provided, which comprises an optical lens body 5 and the shutter described above, and the shutter is detachably arranged on the optical lens body 5.

[0085] By adopting the technical scheme, the optical lens has the advantages of convenient disassembly and assembly on the basis of the advantages of the shutter in the above embodiment.

[0086] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A shutter, characterized by, The application relates to a locking plate (1) having oppositely arranged first and second end faces (101, 102), the second end face (102) being used for attaching an optical lens body (5); a light shielding plate (2) arranged on the first end face (101) of the locking plate (1); a buckle block (3) arranged on the second end face (102) of the locking plate (1); and a locking mechanism (4) arranged on the first end face (101) of the locking plate (1); wherein the locking plate (1) is provided with a light outlet opening (11) corresponding to a light outlet area of the optical lens body (5); the light shielding plate (2) is arranged around the light outlet opening (11); the locking mechanism (4) comprises a locking main body (41) arranged on the locking plate (1) and a locking block (42) arranged on the locking main body (41), and the locking block (42) can be telescopically extended relative to the locking main body (41). When the locking block (42) is telescopically extended relative to the locking main body (41), the locking block (42) protrudes from the second end face (102) to form a locking space between the locking block (42) and the buckle block (3) for locking the optical lens body (5) and the light shielding plate; when the locking block (42) is telescopically retracted relative to the locking main body (41), the locking block (42) forms an opening for separating the light shielding plate and the optical lens body (5). The locking mechanism (4) further comprises a driving block (43) arranged on the locking main body (41), the driving block (43) can slide relative to the locking main body (41), the driving block (43) is provided with a driving face (431) which is in sliding connection with the locking block (42) and is used for driving the locking block (42) to retract relative to the locking main body (41). The locking mechanism (4) further comprises an elastic member (44) connecting the locking main body (41) and the locking block (42), the elastic member (44) is used for driving the locking block (42) to extend. The locking main body (41) is provided with a first sliding groove (411) and a second sliding groove (412) in communication with the first sliding groove (411), the length direction of the first sliding groove (411) is perpendicular to the length direction of the second sliding groove (412), the locking block (42) is slidably arranged in the first sliding groove (411) and can move along the length direction of the first sliding groove (411), the driving block (43) is slidably arranged in the second sliding groove (412) and can move along the length direction of the second sliding groove (412), and the driving face (431) is arranged obliquely relative to the length direction of the second sliding groove (412). The locking block (42) is provided with a matching face (421) in sliding connection with the driving face (431), and the matching face (421) is arranged obliquely relative to the length direction of the first sliding groove (411).

2. The shutter of claim 1, wherein ​ ​ 3. The shutter of claim 2, wherein ​ 4. The shutter of claim 3, wherein ​ 5. The shutter of claim 4, wherein The locking block (42) is provided with a locking surface (422) for locking on the optical lens body (5), the locking surface (422) is exposed outside the first sliding groove (411) when the locking block (42) extends relative to the locking body (41).

6. The shutter according to any one of claims 3 to 5, wherein The locking mechanism (4) further comprises a lever block (45) connected with the driving block (43) and used for driving the driving block (43) to move, the lever block (45) is provided with an end exposed outside the second sliding groove (412).

7. The shutter according to any one of claims 1 to 5, wherein The buckle block (3) is provided with a buckle groove (31) for being buckled on the optical lens body (5), the buckle groove (31) is used for blocking the optical lens body (5) along the axial and radial directions of the light outlet opening (11), and the locking block (42) is used for blocking the optical lens body (5) from moving along the radial direction of the light outlet opening (11) when extending.

8. The shutter according to any one of claims 1 to 5, wherein The number of the buckle blocks (3) is multiple, and the multiple buckle blocks (3) and the locking mechanism (4) are arranged along the circumferential direction of the light outlet opening (11).

9. The shutter of claim 8, wherein The number of the locking mechanisms (4) is multiple.

10. The shutter of claim 9, wherein Two locking mechanisms (4) are radially symmetrical along the light outlet opening (11), and two buckle blocks (3) are radially symmetrical along the light outlet opening (11).

11. An optical lens, characterized in that, The shutter comprises an optical lens body (5) and the shutter according to any one of claims 1 to 10, and the shutter is detachably arranged on the optical lens body (5).

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