Adjustable anti-glare device, lighting device and dimming method

Abstract

The application discloses an adjustable anti-dazzle device, which comprises a lamp body, a light-emitting assembly, an optical assembly, at least one telescopic adjustable anti-dazzle piece, and a driving piece. The lamp body has a shell, the shell comprises a first opening, a second opening and a shell side wall, the shell side wall surrounds to form a mounting cavity; the shell side wall is provided with a sliding groove, the central axis of the sliding groove is parallel to the normal line of the plane where the first opening is located; the anti-dazzle piece comprises a first end, a second end and an anti-dazzle side wall, the anti-dazzle side wall is provided with an anti-dazzle structure, the distance between the first end and the first opening is adjustable; the driving piece is drivingly connected with the anti-dazzle piece through the sliding groove, and the driving piece slides along the central axis of the sliding groove. The driving piece of the adjustable anti-dazzle device drives at least one anti-dazzle piece to be telescopic, so that the anti-dazzle protection angle and the spot size are adjusted to meet the requirements of anti-dazzle and light-emitting angle. The application further provides a lighting device comprising the adjustable anti-dazzle device and a corresponding light adjusting method.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of LED lighting devices, in particular to an adjustable anti-dazzle device, a lighting device and a dimming method. BACKGROUND

[0002] In the lighting device of commercial lighting track, the exit angle and the light emitting surface can be adjusted as required, but if the light emitted by the light emitting surface directly irradiates on the eyes, it will cause certain dazzle damage. Therefore, the requirements for anti-dazzle and light spot adjustment of such lighting devices are getting higher and higher.

[0003] The size of the light spot is generally formed by the cooperation of the anti-dazzle cover and other optical components. On the market, the optical components are usually set in the following two forms: (1) fixed light spot, which is a common optical form. The optical system components are relatively fixed and are in a non-adjustable state. The glare effect can be optimized at the factory; but since the components are fixed, the light spot cannot be optimized and adjusted according to the scene requirements, and cannot meet the diversified needs of users; (2) fixed glare structure, which usually needs to be combined with standard optical components for light emitting surface sinking design. The protection angle is usually designed to be about 15°; but for users with high anti-dazzle requirements, it cannot be effectively compatible.

[0004] In addition, on the anti-dazzle structure, the lighting devices on the market also use fog-shaped diffusion covers and honeycomb net structures. Since the fog-shaped diffusion cover mainly plays a basic diffusion role, and the honeycomb net plays an auxiliary anti-dazzle role, the anti-dazzle performance of both cannot meet the requirements of commercial lighting track lamps.

[0005] Therefore, it is necessary to optimize the anti-dazzle structure of the existing lighting device to meet the diversified needs of users for light spot and anti-dazzle. SUMMARY

[0006] In order to solve the above problems, the present application provides an adjustable anti-dazzle device. A driving member drives at least one anti-dazzle member to perform telescopic movement relative to the lamp body, so as to adjust the anti-dazzle beam angle and the light spot size, to meet the diversified needs of anti-dazzle and adjustable light emitting angle. The present application also provides a lighting device comprising the adjustable anti-dazzle device, and a dimming method.

[0007] In order to achieve the above purpose, the present application provides the following technical solutions:

[0008] The adjustable anti-dazzle device comprises a lamp body, a light emitting assembly, an optical assembly and at least one telescopic adjustable anti-dazzle member, and a driving member:

[0009] A lamp body has a shell, the shell includes a first opening, a second opening and a shell side wall, the shell side wall surrounds to form a mounting cavity, the first opening and the second opening are located at both ends of the mounting cavity; the shell side wall is provided with a sliding groove, the central axis of the sliding groove is parallel to the normal line of the plane where the first opening is located;

[0010] A light emitting assembly is arranged in the mounting cavity, the light emitting assembly is close to the first opening;

[0011] An optical assembly is arranged at the light emitting end of the light emitting assembly;

[0012] At least one telescopic adjustable anti-dazzle piece is arranged in the mounting cavity, the anti-dazzle piece includes a first end, a second end and an anti-dazzle side wall, the inner side wall of the anti-dazzle side wall is provided with an anti-dazzle structure, the first end protrudes from the first opening, and the distance between the first end and the first opening is adjustable; and

[0013] A driving piece is drivingly connected with the anti-dazzle piece through the sliding groove, and the driving piece slides along the central axis of the sliding groove.

[0014] In one embodiment, the second end is provided with a clamping groove, the driving piece includes a button and a driving block extending from the button, and the driving block is clampingly connected in the clamping groove.

[0015] In one embodiment, the anti-dazzle side wall is provided with an elastic arm extending towards the light emitting assembly, the elastic arm is provided with a protruding block towards the shell side wall, and the protruding block abuts against the shell side wall.

[0016] In one embodiment, the anti-dazzle structure includes two or more anti-dazzle ring bodies, and the heights of adjacent two anti-dazzle ring bodies are the same or different.

[0017] In one embodiment, the anti-dazzle piece is arranged as a single first anti-dazzle body, and the distance between the first end and the first opening changes with the sliding distance of the driving piece in the sliding groove.

[0018] In one embodiment, the anti-dazzle structure is a plurality of anti-dazzle ring bodies with the same height, and the cross section of the anti-dazzle structure is in a stepped shape.

[0019] In one of the embodiments, the anti-glare member comprises a first anti-glare body, a second anti-glare body and a third anti-glare body, the second anti-glare body is sleeved on the periphery of the third anti-glare body, the first anti-glare body is sleeved on the periphery of the second anti-glare body and drives the second anti-glare body to move. The clamping groove is arranged on the side wall of the first anti-glare body, and the driving member is in clamping connection with the first anti-glare body.

[0020] In one of the embodiments, the first anti-glare body is provided with a first clamping block, the second anti-glare body is provided with a first guide groove and a second clamping block, and the third anti-glare body is provided with a second guide groove.

[0021] The first clamping block is connected to the first guide groove, and the second clamping block is connected to the second guide groove.

[0022] The application further provides a lighting device comprising a guide rail support and the adjustable anti-glare device, and the lamp body is in rotational connection with the guide rail support.

[0023] The application further provides an adjusting method for the lighting device, which comprises the following steps:

[0024] The driving member is pressed to slide in the sliding groove;

[0025] The driving member drives the anti-glare member to move relative to the lamp body;

[0026] The distance between the first end portion and the first opening is adjusted, so that the distance between the first end portion and the light-emitting assembly is adjusted;

[0027] The anti-glare protection angle and the light spot size are adjusted.

[0028] Based on the above technical solutions, the application achieves the following technical effects:

[0029] 1. The adjustable anti-glare device can be installed at the light-emitting end of the light-emitting assembly and the optical assembly, and the anti-glare member can slide relative to the lamp body under the driving of the driving member, so that the distance between the anti-glare member and the first opening of the lamp body is adjusted, the light beam angle and the light spot size are adjusted, and the dual lighting requirements of anti-glare and light-emitting angle adjustment are met.

[0030] 2. The lighting device adopts the adjustable anti-glare device, the driving member slides axially in the sliding groove of the lamp body to adjust the exposed length of the anti-glare member, so that the number of anti-glare ring bodies in the anti-glare structure of the anti-glare member and the distance between adjacent anti-glare bodies are adjusted to meet the anti-glare and light spot adjustment requirements. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The structural exploded view of the adjustable anti-glare device of embodiment 1.

[0032] Figure 2 Cross-sectional view of the adjustable anti-glare device of Example 1.

[0033] Figure 3 Cross-sectional view of the adjustable anti-glare device of Example 1.

[0034] Figure 4A Schematic view of the adjustable anti-glare device of Example 1 before adjustment.

[0035] Figure 4B Cross-sectional view of the adjustable anti-glare device of Figure 4A Example 1.

[0036] Figure 5A Schematic view of the adjustable anti-glare device of Example 1 after adjustment.

[0037] Figure 5B Cross-sectional view of the adjustable anti-glare device of Figure 5A Example 1.

[0038] Figure 6 Exploded view of the adjustable anti-glare device of Example 2.

[0039] Figure 7 Schematic view of the adjustable anti-glare device of Example 2.

[0040] Figure 8 Cross-sectional view of the adjustable anti-glare device of Example 2.

[0041] Figure 9A Schematic view of the adjustable anti-glare device of Example 2 during adjustment.

[0042] Figure 9B Cross-sectional view of the adjustable anti-glare device of Figure 9A Example 2.

[0043] Figure 10A Schematic view of the adjustable anti-glare device of Example 2 after adjustment.

[0044] Figure 10B Cross-sectional view of the adjustable anti-glare device of Figure 10A Example 2.

[0045] Figure 11 Schematic view of the lighting device of Example 3.

[0046] Figure 12 Flowchart of the dimming method of Example 4. DETAILED DESCRIPTION

[0047] For the purposes of this disclosure, particular embodiments will now be described in further detail, by way of example only, with reference to the drawings in which:

[0048] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It is to be understood that the terms "approximately" and "substantially" are used herein to represent the insubstantial difference in the numerical quantity that would not change the expected results.

[0049] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like merely indicate the orientation or position in the drawings or the orientation or position in which the application is usually placed, and are used only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0051] Example 1

[0052] Figures 1-3 are respectively the exploded view, the sectional view and the cutaway view of the adjustable anti-dazzle device of the present embodiment, in combination with the reference Figures 1-3The adjustable anti-dazzling device 100 is used for realizing the light beam angle and spot adjusting functions, and can be assembled into a down lamp, a spotlight and a rail light structure. The adjustable anti-dazzling device 100 comprises a lamp body 1, a light emitting assembly 2, an optical assembly 3, an anti-dazzling piece 4 and a driving piece 5. The lamp body 1 is a supporting main body of the adjustable anti-dazzling device 100. The lamp body 1 has a shell 10. The shell 10 has a cylindrical structure in the embodiment. In other embodiments, the shell 10 can also be provided as a square structure. The shell 10 comprises a first opening 11, a second opening 12 and a shell side wall 13. The shell side wall 13 surrounds to form a mounting cavity 14. The first opening 11 and the second opening 12 are located at two ends of the mounting cavity 14. In the embodiment, the first opening 11 is a light exit port. The light emitted by the light emitting assembly 2 is emitted from the first opening 11. An end cover 121 is fixedly connected on the second opening 12, and is used for closing the mounting cavity 14. A sliding groove 15 is formed on the shell side wall 13. The sliding groove 15 is in an oval or track shape, and has a central axis Y. In the lamp body 1, a normal line of a plane where the first opening 11 is located is L, and the central axis Y of the sliding groove 15 is parallel to the normal line L of the plane where the first opening 11 is located.

[0053] The light emitting assembly 2 and the optical assembly 3 are fixedly installed in the mounting cavity 14. Specifically, the mounting cavity 14 can be further divided into a separate light exit cavity 141 and a heat dissipation cavity 142. The light emitting assembly 2 and the optical assembly 3 are located in the light exit cavity 141. The heat dissipation piece 6 is installed on the heat dissipation cavity 142. The heat dissipation piece 6 is attached to the light emitting assembly 2, so that the heat generated by the light emitting assembly 2 is dissipated to the outside of the lamp body 1.

[0054] The light emitting assembly 2 comprises a substrate 21 and a light source piece 22. The light source piece 22 is attached to the substrate 21. The substrate 21 is attached to the heat dissipation piece 6. Figure 3 As shown in the figure, the light exit cavity 141 is communicated with the first opening 11. The light emitting assembly 2 is close to the first opening 11.

[0055] The optical assembly 3 is installed at the light exit front end of the light emitting assembly 2. The optical assembly 3 comprises a lens 31 and a lens fixing piece 32. The lens 31 is installed above the light source piece 22. The lens fixing piece 32 fixes the lens 31 on the lamp body 1.

[0056] The anti-glare member 4 is a light processing component that can be adjusted in extension relative to the lamp body. In the adjustable anti-glare device 100 of the embodiment, at least one anti-glare member 4 that can be adjusted in extension is provided. The anti-glare member 4 comprises a first end portion 401, a second end portion 402 and an anti-glare side wall 403, wherein the inner side wall of the anti-glare side wall 403 is provided with an anti-glare structure 404, which comprises two or more anti-glare ring bodies 405. In some embodiments, the anti-glare member 4 can be provided as a single one, and in other embodiments, the anti-glare member 4 can be provided as a plurality. However, whether the anti-glare member 4 is provided as a single one or a plurality, the first end portion 401 of the anti-glare member 4 protrudes from the first opening 11, and the distance d between the first end portion 401 and the first opening 11 can be adjusted.

[0057] It should be noted that the anti-glare member 4 of the embodiment is provided as a single first anti-glare body 41, and the anti-glare structure 404 of the inner side wall of the anti-glare side wall 403 of the anti-glare member 4 is a plurality of anti-glare ring bodies 405 with the same height. Specifically, the anti-glare ring bodies 405 are four, and the cross section of the anti-glare structure 404 is stepped, and the diameter of the anti-glare ring bodies 405 gradually decreases from the first end portion 401 to the second end portion 402.

[0058] The driving member 5 passes through the sliding groove 15 on the shell 10 and is drivingly connected with the anti-glare member 4. The driving member 5 of the embodiment slides along the central axis Y of the sliding groove 15, i.e. the sliding direction of the driving member 5 is parallel to the direction of the radially emitted light.

[0059] Further, the second end portion 402 of the anti-glare member 4 is provided with a clamping groove 406 for cooperating with the driving member 5. The driving member 5 comprises a button 51 and a driving block 52. The button has a disc-shaped structure, and a plurality of patterns can be provided on the contact surface of the button to increase the friction. The driving block 52 extends from the button 51 and forms a protrusion at the distal end. The driving block 52 is clamped into the clamping groove 406, so that sliding the driving block 52 can drive the anti-glare member 4 to move relative to the lamp body, adjust the distance between the first end portion 401 and the first opening 11 and the light emitting assembly 2, and thus adjust the anti-glare depth and the light emitting angle.

[0060] In the shell 10 of the embodiment, the sliding groove 15 is symmetrically provided as two, and correspondingly, the driving member 5 is also provided as two. The two sliding driving members 5 are uniformly distributed on the shell 10, and the sliding groove 15 can provide the driving member 5 with the dual functions of limiting and guiding. The double driving members can also realize uniform stress and better sliding adjustment of the anti-glare member 4.

[0061] Meanwhile, in order to fix the position of the anti-glare member 4 in the lamp body 1 after the telescopic adjustment, the anti-glare side wall 403 is provided with elastic arms 407 extending towards the light emitting assembly 2, and the elastic arms 407 are provided with protrusions 408 at the side wall 13 of the housing, which abut against the side wall 13 of the housing, thereby generating an elastic damping effect to fix the position of the anti-glare member 4 after the telescopic adjustment.

[0062] It should be noted that the lengths of the elastic arms 407 in the anti-glare member 4 are not completely equal, and the elastic arms 407 are arranged in a staggered manner, i.e., the distances between the protrusions 408 and the light emitting assembly 2 are different. In the embodiment, the protrusions 408 are arranged in two rows along the anti-glare side wall 403. In the embodiment, the single first anti-glare body 41 (anti-glare member 4) is in interference fit with the lamp body 1, and when the two driving members 5 move in the sliding groove 15, the elastic buckle protrusion assembly formed by the two rows of protrusions 408 can fill the gap formed in the side wall 13 of the housing after the anti-glare member 4 is pulled out, and generate a damping effect when the anti-glare member 4 slides relative to the lamp body 1, thereby limiting the anti-glare member 4.

[0063] Figure 4A and Figure 4B are respectively a structure schematic view and a sectional view of the adjustable anti-glare device of the embodiment before adjustment, as Figure 4A and 4B shown, the sliding groove 15 has an elliptical structure, which has a first end 151 and a second end 152, wherein the first end 151 is away from the first opening 11, and the second end 152 is close to the first opening. The sliding groove 15 has a guiding and limiting effect on the driving member 5. When the driving member 5 is located at the first end 151 of the sliding groove 15, the distance d between the first end 401 of the anti-glare member 4 and the first opening 11 is 21 mm; the anti-glare structure 404 of the anti-glare member 4 is in the form of two anti-glare ring bodies 405 with the same height, and the cross section of the anti-glare structure 404 is in a stepped structure. The anti-glare ring body 405 close to the lens 31 is flush with the lens fixing member 32. At this time, the anti-glare protection angle (beam angle) θ is 18°.

[0064] Figure 5A and Figure 5B are respectively a structure schematic view and a sectional view of the adjustable anti-glare device of the embodiment after adjustment, as Figure 5A and 5BAs shown, when the driving member 5 is slid from the first end 151 to the second end 152 of the sliding groove 15, the distance d between the first end 401 of the anti-dazzle member 4 and the first opening 11 is 41 mm; the anti-dazzle structure 404 of the anti-dazzle member 4 is composed of four anti-dazzle ring bodies 405 with the same height, and the cross section of the anti-dazzle structure 404 is in a stepped structure. The anti-dazzle ring bodies 405 close to the lens 31 are flush with the lens fixing member 32. At this time, the anti-dazzle protection angle (light beam angle) θ is 33°. After the adjustment of the anti-dazzle member 4 is completed, the protrusion 408 on the anti-dazzle member abuts against the side wall of the shell, thereby generating a damping effect to limit the position of the anti-dazzle member.

[0065] The adjustable anti-dazzle device provided by the embodiment is installed on the anti-dazzle member at the front end of the light-emitting assembly and the light-emitting assembly, and can be slid relative to the lamp body under the driving of the driving member to adjust the distance between the first end and the first opening. The anti-dazzle protection angle (light beam angle) and the spot size can be adjusted at the same time, and the lighting requirements in different scenes can be met.

[0066] Embodiment 2

[0067] Figures 6-8 The structural exploded view, the structural schematic view and the sectional view of the adjustable anti-dazzle device of the embodiment are respectively provided, and the combination is referred to Figures 6-8 An adjustable anti-dazzle device 100 is used to realize the light beam angle and spot adjustment functions, and can be assembled into a down lamp, a spotlight and a track lamp structure. The adjustable anti-dazzle device 100 comprises a lamp body 1, a light-emitting assembly 2, an optical assembly 3, an anti-dazzle member 4 and a driving member 5. The lamp body 1 has a shell 10 with a cylindrical structure. The shell 10 comprises a first opening 11, a second opening 12 and a shell side wall 13. The shell side wall 13 surrounds to form a mounting cavity 14, and the first opening 11 and the second opening 12 are located at two ends of the mounting cavity 14. The first opening 11 is a light outlet, and the light emitted by the light-emitting assembly 2 is emitted from the first opening 11. An end cover 121 is fixedly connected to the second opening 12, and is used to close the mounting cavity 14. A sliding groove 15 is formed in the shell side wall 13, and the sliding groove 15 is in an oval or track shape, and the sliding groove 15 has a central axis Y. In the lamp body 1, the normal line of the plane where the first opening 11 is located is L, and the central axis Y of the sliding groove 15 is parallel to the normal line L of the plane where the first opening 11 is located.

[0068] In the adjustable anti-dazzle device 100 of the embodiment, the structures of the light-emitting assembly 2 and the optical assembly 3 are the same as those of the embodiment 1. Therefore, the description of the light-emitting assembly 2 and the optical assembly 3 is referred to the description of the embodiment 1, and will not be repeated here.

[0069] The anti-glare member 4 is a light processing component that can be adjusted in extension relative to the lamp body. Different from the embodiment 1, the anti-glare member 4 of the embodiment 1 comprises a first anti-glare body 41, a second anti-glare body 42 and a third anti-glare body 43, wherein the second anti-glare body 42 is sleeved on the outer periphery of the third anti-glare body 43, the first anti-glare body 41 is further sleeved on the outer periphery of the second anti-glare body 42, and the first anti-glare body 41 can drive the second anti-glare body 42 to move.

[0070] The first end portion 401 and the second end portion 402 of the anti-glare member 4 are both arranged on the first anti-glare body 41; the anti-glare side wall 403 can be considered as a side wall of the first anti-glare body 41. The first anti-glare body 41, the second anti-glare body 42 and the third anti-glare body 43 are sleeved together to form three anti-glare ring bodies 405, thereby forming an anti-glare structure 404 of the anti-glare member. The cross section of the anti-glare structure 404 is in a stepped shape, and the diameter of the anti-glare ring body 405 gradually decreases from the first end portion 401 to the second end portion 402. In the embodiment, the first anti-glare member 41 protrudes from the first opening 11, and the distance d between the first end portion 401 and the first opening 11 can be adjusted.

[0071] The driving member 5 passes through the sliding slot 15 on the shell 10, and is further drivingly connected with the anti-glare member 4. The driving member 5 of the embodiment slides along the central axis Y of the sliding slot 15, that is, the sliding direction of the driving member 5 is parallel to the direction of the radially emitted light.

[0072] Specifically, the anti-glare member 4 is provided with a clamping groove 406 on the side wall of the first anti-glare body 41, which is used for cooperating with the driving member 5. The driving member 5 comprises a button 51 and a driving block 52. The button 51 has a disc-shaped structure, and a plurality of patterns can be arranged on the contact surface of the button in order to increase the friction. The driving block 52 extends from the button 51, and a protrusion is formed at the end thereof. The driving block 52 is clamped into the clamping groove 406, and the driving member 5 is further buckled drivingly connected with the first anti-glare body 41. By sliding the driving block 52, the first anti-glare body 41 can be driven to move relative to the lamp body 1, so as to adjust the distance between the first end portion 401 and the first opening 11 and the light emitting assembly 2, thereby adjusting the anti-glare depth and the light emitting angle.

[0073] In the embodiment, two sliding slots 15 are also symmetrically arranged on the lamp body 1; and correspondingly, two driving members 5 are also arranged. The two sliding driving members 5 are uniformly distributed on the shell 10, and the sliding slot 15 can provide the driving member 5 with the dual functions of limiting and guiding. The double driving members can also realize uniform stress, and better realize the sliding adjustment of the first anti-glare body 41 (the anti-glare member 4).

[0074] It should be noted that the first anti-dazzle body 41 is provided with a first clamping block 411, the second anti-dazzle body 42 is provided with a first guide slot 421 and a second clamping block 422, and the third anti-dazzle body 43 is provided with a second guide slot 431. Specifically, the first clamping block 411 is located on the inner side wall of the first anti-dazzle body 41, the second clamping block 422 is located on the inner side wall of the second anti-dazzle body 42, the first guide slot is located on the outer side wall of the second anti-dazzle body 42, and the second guide slot 431 is located on the outer side wall of the third anti-dazzle body 43.

[0075] The first clamping block 411 of the first anti-dazzle body 41 is connected to the first guide slot 421 of the second anti-dazzle body 42, and the second clamping block 422 of the second anti-dazzle body is connected to the second guide slot 431 of the third anti-dazzle body.

[0076] When the driving member 5 slides in the sliding groove 15, it first pushes the first anti-dazzle body 41 to move, and when the first anti-dazzle body 41 reaches the maximum stroke, it drives the second anti-dazzle body 42 to continue to move until the second anti-dazzle body 42 reaches the maximum stroke, and the anti-dazzle height of the anti-dazzle structure is at the highest position of the adjustable height.

[0077] In this embodiment, since the first anti-dazzle body 41 and the second anti-dazzle body 42 are both telescopic, the height of the two adjacent anti-dazzle ring bodies 405 will change, that is, the height of the two adjacent anti-dazzle ring bodies 405 is not always equal.

[0078] It should be noted that in order to fix the position of the entire anti-dazzle member 4 in the lamp body 1 after telescopic adjustment, the first anti-dazzle body 41 extends in the direction of the light emitting assembly 22 on the anti-dazzle side wall 403 and is provided with a elastic arm 407, the elastic arm 407 is provided with a protrusion 408 at the position of the shell side wall 13, the protrusion 408 can abut against the shell side wall 13, thereby generating elastic damping effect, so that the position of the anti-dazzle member 4 is fixed after telescopic adjustment.

[0079] Continuing to refer to Figure 7 and Figure 8 , Figure 7 and Figure 8 The structure schematic diagram and the sectional view of the adjustable anti-dazzle device of the embodiment before adjustment are also given, as shown in Figure 7 and Figure 8 The sliding groove 15 has an oval structure, which has a first end 151 and a second end 152, wherein the first end 151 is away from the first opening 11, and the second end 152 is close to the first opening. The sliding groove 15 has a guiding and limiting effect on the driving member 5. When the driving member 5 is located at the first end 151 of the sliding groove 15, the first anti-dazzle member 41 protrudes from the lamp body. In the anti-dazzle structure 404 of the anti-dazzle member 4, three anti-dazzle ring bodies 405 with the same height are formed, and the cross section of the anti-dazzle structure 404 has a stepped structure.

[0080] Figure 9A andFigure 9B respectively are the structural schematic diagram and sectional view of the adjustable anti-dazzling device in this embodiment in adjustment, as shown in Figure 9A and 9B As shown in the figures, as the driving member 5 travels from the first end 151 to the second end 152 of the sliding groove 15, the first anti-dazzling member 41 is also driven to protrude from the lamp body 1, at this time the first clamping block moves along the first guide groove until the first anti-dazzling member 41 reaches the maximum stroke, and then the first anti-dazzling member 41 drives the second anti-dazzling member 42 to move. In the anti-dazzling structure 404 of the anti-dazzling member 4, the heights of the anti-dazzling ring bodies 405 are not completely the same.

[0081] Figure 10A and Figure 10B respectively are the structural schematic diagram and sectional view of the adjustable anti-dazzling device in this embodiment in adjustment, as shown in Figure 10A and 10B As shown in the figures, as the driving member 5 reaches the second end 152 of the sliding groove 15, the first anti-dazzling member 41 drives the second anti-dazzling member 42 to move, and the second clamping block moves along the second guide groove until the second anti-dazzling member 42 reaches the maximum stroke. At this time, the anti-dazzling height is the maximum height of the adjustable anti-dazzling height.

[0082] The adjustable anti-dazzling device provided in this embodiment is composed of three anti-dazzling members, can form a multi-stage structure with adjustable anti-dazzling height, and can adjust the anti-dazzling protection angle (light beam angle) and the light spot size, thereby meeting the lighting requirements in different scenarios.

[0083] Embodiment 3

[0084] Figure 11 is a structural schematic diagram of the lighting device in this embodiment, as shown in Figure 11 A lighting device, comprising a guide rail support 200 and the adjustable anti-dazzling device 100 of Embodiment 1 or Embodiment 2, wherein the lamp body 1 of the adjustable anti-dazzling device 100 is rotationally connected with the guide rail support 200, and the anti-dazzling member 4 can be telescopically adjusted relative to the lamp body 1.

[0085] In the lighting device in this embodiment, the driving member 5 is axially slid in the sliding groove of the lamp body 1 to adjust the exposed length of the anti-dazzling member 4, so as to adjust the number of anti-dazzling ring bodies and the distance between adjacent anti-dazzling members in the anti-dazzling structure of the anti-dazzling member 4, thereby meeting the anti-dazzling and light spot adjustment requirements.

[0086] Embodiment 4

[0087] Figure 12 is a flowchart of the dimming method in this embodiment, as shown in Figure 12 The embodiment provides a dimming method, which adopts the adjustable anti-dazzling device of Embodiment 1 or Embodiment 2, or the lighting device of Embodiment 3, and specifically comprises the following steps:

[0088] 101. The pressing driving member slides in the sliding groove;

[0089] 102. The driving member drives the anti-dazzling member to move relative to the lamp body;

[0090] 104. The distance between the first end and the first opening is adjusted, so as to adjust the distance between the first end and the light-emitting assembly;

[0091] 105. The anti-dazzling protection angle and the light spot size are adjusted.

[0092] The pressing driving member slides in the sliding groove by pressing the button 51 of the pressing driving member, so that the damping structure of the anti-dazzling member (the first anti-dazzling body) is elastically deformed, thereby pushing the driving member to slide in the sliding groove.

[0093] Since the driving member is drivingly connected with the anti-dazzling member (the first anti-dazzling body), the anti-dazzling member (the first anti-dazzling body) is also driven to move when the driving member slides.

[0094] At this time, the distance between the first end of the anti-dazzling member (the first anti-dazzling body) and the first opening of the lamp body changes, thereby adjusting the distance between the first end and the light-emitting assembly. Further, the anti-dazzling structure of the anti-dazzling ring body also changes, such as the number of anti-dazzling ring bodies and the distance between adjacent anti-dazzling bodies.

[0095] Finally, the anti-dazzling protection angle (the light beam angle) and the light spot size change as needed.

[0096] The above is only an example and description of the structure of the present application, which is described in more detail and in detail, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of variations and improvements can be made, and these obvious alternative forms all belong to the protection scope of the present application.

Claims

1. An adjustable anti-glare device, characterized in that, The adjustable anti-dazzling device comprises: a lamp body, the lamp body having a shell, the shell comprising a first opening, a second opening and a shell side wall, the shell side wall surrounding a mounting cavity, the first opening and the second opening being located at two ends of the mounting cavity, the shell side wall being provided with a sliding groove, a central axis of the sliding groove being parallel to a normal line of a plane on which the first opening is located; a light-emitting assembly, the light-emitting assembly being arranged in the mounting cavity, the light-emitting assembly being close to the first opening; an optical assembly, the optical assembly being arranged at a light-emitting front end of the light-emitting assembly; at least one anti-dazzling member, the anti-dazzling member being arranged in the mounting cavity, the anti-dazzling member comprising a first end portion, a second end portion and an anti-dazzling side wall, an inner side wall of the anti-dazzling side wall being provided with an anti-dazzling structure, the first end portion protruding from the first opening, and a distance between the first end portion and the first opening being adjustable; a driving member, the driving member being in driving connection with the anti-dazzling member through the sliding groove, the driving member sliding along the central axis of the sliding groove; the second end portion being provided with a clamping groove, the driving member comprising a button and a driving block extending from the button, the driving block being clamped and connected in the clamping groove; the anti-dazzling side wall being provided with elastic arms extending towards the light-emitting assembly, lengths of the elastic arms being not completely equal and being distributed in a staggered manner, the elastic arms being provided with protrusions towards the shell side wall, the protrusions abutting against the shell side wall; the anti-dazzling member comprising a first anti-dazzling body, a second anti-dazzling body and a third anti-dazzling body, the second anti-dazzling body being sleeved on an outer periphery of the third anti-dazzling body, the first anti-dazzling body being sleeved on an outer periphery of the second anti-dazzling body and driving the second anti-dazzling body to move; the clamping groove being arranged on a side wall of the first anti-dazzling body, the driving member being clamped and connected with the first anti-dazzling body; the first anti-dazzling body being provided with a first clamping block, the second anti-dazzling body being provided with a first guide groove and a second clamping block, and the third anti-dazzling body being provided with a second guide groove; the first clamping block being connected with the first guide groove, and the second clamping block being connected with the second guide groove; the first anti-dazzling body and the second anti-dazzling body being capable of telescopic movement, heights of adjacent two anti-dazzling ring bodies being capable of changing, and distances between adjacent anti-dazzling bodies being capable of changing. the anti-dazzling structure comprising two or more anti-dazzling ring bodies, heights of adjacent two anti-dazzling ring bodies being the same or different.

2. The adjustable anti-glare device of claim 1, wherein, The adjustable anti-dazzling device further comprises a guide rail support, and the lamp body is in rotational connection with the guide rail support.

3. A lighting device, characterized in that The adjustable anti-dazzling device or the lighting device is used in the following steps:

4. A dimming method, characterized by, pressing the driving member to slide in the sliding groove; the driving member driving the anti-dazzling member to move relative to the lamp body; adjusting the distance between the first end portion and the first opening, so as to adjust the distance between the first end portion and the light-emitting assembly; adjusting the anti-dazzling protection angle and the light spot size. ​

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