A glare index adjustable lamp and its control method

Abstract

The present invention discloses a glare index adjustable lamp and its control method, belonging to the technical field of lighting control. The lamp includes a lampshade, a lamp board is arranged inside the lampshade, a lens is arranged at the bottom of the lampshade, a base is arranged at the top of the lampshade, and a telescopic rod is arranged on the base. The telescopic rod is used for adjusting the distance between the lamp board and the lens. The base includes a bottom plate, the telescopic rod is arranged at the center of the bottom end of the bottom plate, a frame is arranged around the bottom end of the bottom plate, the frame is arranged on the side of the telescopic rod, an elastic sleeve is arranged inside the frame, a rubber plate is arranged at the end of the elastic sleeve, a partition plate is arranged below the frame, the partition plate is sleeved on the telescopic rod, one end of the partition plate is connected to the rubber plate, and the other end of the partition plate is connected to the lampshade by a support rod. The present invention can provide a stable light source, and the overall structure of the lamp is simple and convenient to operate.

Description

Technical Field

[0001] The present invention belongs to the technical field of lighting, and particularly relates to a glare index adjustable lamp and a control method thereof. Background Art

[0002] In the lighting industry, LED lamps have become increasingly popular. LEDs are so popular because of their small size, short turn-on time and rapid switching cycles, relatively cold emitted light, and high efficiency. However, what currently troubles lighting fixture manufacturers with LEDs is the heat and glare of LEDs. Since the light emitted from each individual light-emitting diode is focused forward without spreading, many LED lighting fixtures also have problems regarding glare and / or generating multiple shadows.

[0003] The glare indices nominalized for current anti-glare lamps on the market are all fixed values. For example, the glare index is 19. This nominal value of the glare index is calculated by substituting the light parameters of the lamp into the calculation method and preset parameters stipulated by relevant international or national standards. There are the following several problems in the actual application of this calculation result: The actually measured glare index of the illuminated space at the application site is inconsistent with the nominal value of the glare index of the lamp, and is often higher than the nominal value of the lamp.

[0004] The commonly used technical solution for existing anti-glare lamps is to reduce the beam angle of the lamp, which will cause the light efficiency of the lamp to decrease and the energy-saving benefit to decrease. The main reasons for the above problems are: The glare index stipulated in international or national standards is calculated under ideal conditions, and the actual application environment has a large gap from the ideal environment. Therefore, it is necessary to design a high-light-efficiency lamp with an adjustable glare index to improve the environmental adaptability of the lamp, ensure that the glare index and energy-saving benefit of the illuminated environment can meet the design requirements, and at the same time, reduce the procurement cost of users and improve the social and economic benefits.

[0005] Korean Patent Application No. KR1020170076581 discloses a lamp with an adjustable lighting range. The lamp includes an upper housing, a light source, and a radiator for releasing the heat generated by the light source. The light source is installed on the upper housing. The upper housing includes a regulator capable of moving the light source, and the regulator can achieve vertical lifting and rotational movement. This invention rotates and lifts the light source through the regulator, thereby changing the light illumination range and realizing the adjustment of the glare value. However, the regulator is prone to shaking during the rotation and lifting process, resulting in the shaking of the light source and causing dizziness to the surrounding people; at the same time, after the lamp is installed at the designated position, affected by ground vibration and other interferences, the lamp is prone to shaking and causing light flickering, which causes harm to the human eye. Summary of the Invention

[0006] The purpose of the present invention is to provide a glare index adjustable lamp with a simple structure and a stable light source and a control method thereof.

[0007] To solve the above technical problems, the present invention specifically provides the following technical solutions:

[0008] A glare index adjustable lamp, comprising: a lamp shade, a lamp board is arranged inside the lamp shade, a lens is arranged at the bottom of the lamp shade, a base is arranged at the top of the lamp shade, and a telescopic rod is arranged on the base, and the telescopic rod is used for adjusting the distance between the lamp board and the lens. By adjusting the distance between the lamp board and the lens through the telescopic rod, the light can be bundled by the lens at different divergence angles, so as to realize the adjustment of the glare index of the output light source.

[0009] Preferably, the base includes a bottom plate, the telescopic rod is arranged at the center of the bottom end of the bottom plate, and a frame is arranged around the bottom end of the bottom plate, and the frame is arranged on the side of the telescopic rod. The bottom plate is used for the overall installation of the base at a preset position.

[0010] Preferably, an elastic sleeve is arranged inside the frame, a rubber plate is arranged at the end of the elastic sleeve, a partition plate is arranged below the frame, the partition plate is sleeved on the telescopic rod, the upper end of the partition plate is connected to the rubber plate, and support rods are arranged in an array at the lower end of the partition plate, and the support rods are connected to the lamp shade. The frame and the partition plate limit the verticality of the telescopic rod to ensure that the movable end of the telescopic rod moves up and down vertically, so as to avoid uneven light divergence caused by the inclination and offset of the lamp board, which may cause glare to the human eye; the support rods form a space interval between the partition plate and the lamp shade, ensuring that the heat generated by the lamp board during lighting can be effectively dissipated, increasing the service life of the lamp board; the elastic sleeve is arranged inside the frame, and the elastic sleeve can buffer the vibration interference transmitted from the bottom plate to the partition plate through its own compression deformation, thereby avoiding the shaking of the lamp board after being interfered, preventing the possibility of the output light shaking and hurting the human eye, and realizing the stability of the light source;

[0011] When the elastic sleeve is compressed, it deforms and abuts against the inner wall of the frame to form deformation limitation, avoiding excessive compression of the single-sided elastic sleeve, which may cause excessive inclination of the partition plate and side interference of the telescopic rod. At the same time, it helps the partition plate to maintain a horizontal posture, thereby ensuring the verticality of the lamp shade relative to the installation surface and avoiding the deviation of the light irradiation.

[0012] Preferably, a through groove is arranged on the side wall of the frame, and the through groove is located on the side of the elastic sleeve. The deformation of the elastic sleeve can promote the air flow in the frame to pass through the through groove, which helps to improve the heat dissipation effect of the lamp.

[0013] Preferably, a sleeve body is arranged at the end of the telescopic rod, extension arms are symmetrically arranged on the side of the bottom of the sleeve body, a leaf plate is hinged to the extension arm, blades are arranged at intervals on the upper end surface of the leaf plate, and the lamp board is movably connected to the bottom of the sleeve body, and the lamp board is arranged in cooperation with the leaf plate.

[0014] Preferably, a guide rod is slidably arranged inside the sleeve. A clamping plate is provided at the top end of the guide rod. A retaining ring is arranged inside the sleeve. The guide rod passes through the retaining ring and its bottom end is assembled with the lamp board. A spring is arranged between the clamping plate and the retaining ring, and the spring is sleeved outside the guide rod. The lamp board forms a movable elastic connection with the sleeve through the guide rod. When the telescopic rod performs telescopic movement, the vibration interference can be consumed through the sliding of the guide rod and the compression deformation of the spring, ensuring that the lamp board does not shake, and reducing the human eye glare by improving the light source stability;

[0015] The settings of the clamping plate and the limiting ring keep the spring in a tensioned state, enabling the lamp board installed at the end of the guide rod to closely contact the vane. The light source emitted by the lamp board can be effectively transmitted to the vane and diverge outward through the blades on the vane, realizing effective heat dissipation on the back side of the lamp board, reducing the risk of overheating damage to the lamp board, and reducing the maintenance cost;

[0016] When the lamp board generates heat continuously during illumination, the heat is transmitted to the spring through the guide rod, which can cause the spring to contract. At this time, the tension force of the spring on the clamping plate decreases, resulting in the downward movement of the guide rod, creating an interval space between the vane and the back side of the lamp board. Also, since the vane is hinged to the extension arm, the vane will swing after losing contact with the lamp board, thus realizing active heat dissipation on the back side of the lamp board and preventing the lamp board from being damaged due to overheating;

[0017] Since the end of the guide rod is cooperatively arranged with the lamp board, that is, different specifications of light source bodies can be installed at the end of the guide rod, and under the action of the spring, the installed light source bodies can all fit well with the vane. Since the vane is hinged to the extension arm, even if the back side of the installed light source has an uneven inclined surface, the two side vanes can cooperate with the spring and their own swinging to achieve fitting with the back side of the light source body, improving the applicable range of the lamp for the light source body.

[0018] Preferably, the sleeve includes an assembly head and a sleeve. The telescopic end of the telescopic rod is provided with a fitting sleeve. One end of the assembly head is cooperatively connected with the fitting sleeve, and the other end of the assembly head is cooperatively connected with the sleeve. The assembly head and the sleeve are connected through assembly. During installation, first place the guide rod and the clamping plate into the assembly end of the sleeve. At this time, the end of the guide rod extends out of the clamping ring at the bottom of the sleeve, and the clamping plate is located inside the sleeve. Then install the assembly head and the sleeve to achieve upper limit of the sliding path of the clamping plate and facilitate disassembly from the telescopic rod.

[0019] Preferably, the telescopic rod is connected with a controller, and the controller is used for adjusting the telescopic length of the telescopic rod.

[0020] Preferably, the lamp board is connected with a regulator, and the regulator is used for turning on and off and adjusting the lamp board.

[0021] The present invention has the following beneficial effects compared with the prior art:

[0022] The distance between the light panel and the lens is adjusted by the telescopic rod to achieve glare value adjustment, and the structure is simple; the frame and the elastic sleeve consume vibration interference, stabilize the light source, and prevent light flickering from hurting the eyeball; the frame and the partition guide the installation of the telescopic rod to avoid light source deflection; the elastic sleeve deforms and abuts the inner side of the frame to ensure the posture of the partition and the lamp housing, and further prevents light deflection; the light panel is elastically connected to the telescopic rod, which reduces the possibility of shaking when the light panel moves and further stabilizes the light source; the blade can fit with the light panel and utilize the heat absorbed and dissipated by the blade to extend the service life of the light panel; the blade can fit on the back side of light sources of different specifications through springs, which improves the installation adaptability of the device to the lamp; when the light panel is overheated, the contraction of the spring can cause the blade to swing for active heat dissipation to prevent the light panel from being overheated and damaged. Therefore, the present invention is a glare index adjustable lamp with a simple structure and a stable light source, and a control method thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the appearance of a glare index adjustable lamp;

[0025] Figure 2 It is a cross-sectional schematic diagram of a glare index adjustable lamp;

[0026] Figure 3 is a schematic diagram of the base structure;

[0027] Figure 4 It is a schematic diagram of the structure of the elastic sleeve and the rubber plate;

[0028] Figure 5 This is a schematic diagram of the connection between the telescopic rod and the light panel;

[0029] Figure 6 It is a schematic diagram of the position relationship between the blade plate and the light board;

[0030] Figure 7 It is a cross-sectional schematic diagram of the casing and the blade;

[0031] Figure 8 Schematic diagram of the position relationship between the metal strip and the magnetic block.

[0032] Reference numerals: lampshade 1; metal strip 10; lamp board 2; threaded sleeve 20; lens 3; base 4; bottom plate 40; frame 41; elastic sleeve 42; rubber plate 43; partition 44; support rod 45; through groove 46; telescopic rod 5; fitting sleeve 50; sleeve body 60; fitting head 600; sleeve 601; extension arm 61; vane 62; blade 63; guide rod 64; clamping plate 65; retaining ring 66; spring 67; connecting rod 7; reflector 8; magnetic block 80. Detailed implementation manners

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] First, the concepts involved in the present application will be described below with reference to the accompanying drawings. It should be noted here that the descriptions of the following concepts are only for making the content of the present application easier to understand, and do not represent a limitation on the protection scope of the present application; at the same time, without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0035] See the attached Figure 1 - attached Figure 2 , an adjustable glare index lamp, comprising: a lampshade 1, a lamp board 2 is arranged inside the lampshade 1, a lens 3 is arranged at the bottom of the lampshade 1, a base 4 is arranged at the top of the lampshade 1, and a telescopic rod 5 is arranged on the base 4, and the telescopic rod 5 is used for adjusting the distance between the lamp board 2 and the lens 3.

[0036] By adjusting the distance between the lamp board 2 and the lens 3 through the telescopic rod 5, the light can be bundled by the lens 3 at different divergence angles, so as to realize the adjustment of the glare index of the output light source.

[0037] See the attached Figure 3 , the base 4 includes a bottom plate 40, the telescopic rod 5 is arranged at the center of the bottom end of the bottom plate 40, a frame 41 is arranged around the bottom end of the bottom plate 40, the frame 41 is arranged on the side of the telescopic rod 5, and the frame 41 is a rectangular frame 41 with one end open.

[0038] The bottom plate 40 is used for the overall installation of the base 4 at a preset position.

[0039] An elastic sleeve 42 is arranged inside the frame 41, a rubber plate 43 is arranged at the end of the elastic sleeve 42, a partition 44 is arranged below the frame 41, the partition 44 is sleeved on the telescopic rod 5, the upper section of the partition 44 is connected to the rubber plate 43, and support rods 45 are arranged in an array at the lower end of the partition 44, and the support rods 45 are connected to the lampshade 1.

[0040] See the appendix Figure 4 , the elastic sleeve 42 is a hollow tube body, and the elastic sleeve 42 can deform in the extending direction of the tube.

[0041] The frame 41 and the partition 44 define the perpendicularity of the telescopic rod 5, ensuring that the movable end of the telescopic rod 5 moves vertically up and down, so as to avoid the light source divergence unevenness caused by the inclination and offset of the lamp panel 2, which may cause glare to the human eye; the support rod 45 forms a space interval between the partition 44 and the lamp cover 1, ensuring that the heat generated by the light emission of the lamp panel 2 can be effectively dissipated, increasing the service life of the lamp panel 2; the elastic sleeve 42 is arranged inside the frame 41, and the elastic sleeve 42 can buffer the vibration interference transmitted from the bottom plate 40 to the partition 44 through its own compression deformation, thereby avoiding the lamp panel 2 from shaking after being interfered, preventing the possibility of the output light shaking and stabbing the human eye, and realizing the stability of the light source;

[0042] It should be noted that the rubber plate 43 is located below the opening end face of the frame 41, and the rubber plate 43 can contact the end face of the frame 41.

[0043] When the elastic sleeve 42 is compressed, it deforms and abuts against the inner wall of the frame 41, forming deformation limit, avoiding the excessive inclination of the partition 44 caused by the excessive compression of the unilateral elastic sleeve 42, which may cause side interference of the telescopic rod 5, and at the same time helping the partition 44 to maintain a horizontal posture, so as to ensure the perpendicularity of the lamp cover 1 relative to the installation surface and avoid the deviation of the light irradiation.

[0044] The side wall of the frame 41 is provided with a through groove 46, and the through groove 46 is located on the side of the elastic sleeve 42.

[0045] The deformation of the elastic sleeve 42 can promote the air flow in the frame 41 to pass through the through groove 46, which helps to improve the heat dissipation effect of the lamp.

[0046] See the appendix Figure 5 - Appendix Figure 7 , a sleeve body 60 is provided at the end of the telescopic rod 5, extension arms 61 are symmetrically provided on the side of the bottom of the sleeve body 60, a leaf plate 62 is hinged to the extension arm 61, the upper end face of the leaf plate 62 has blades 63 arranged at intervals, the lamp panel 2 is movably connected to the bottom of the sleeve body 60, and the lamp panel 2 is arranged in cooperation with the leaf plate 62.

[0047] A guide rod 64 is slidably arranged in the sleeve body 60, a clamping plate 65 is provided at the top of the guide rod 64, a retaining ring 66 is arranged in the sleeve body 60, the guide rod 64 passes through the retaining ring 66 and the bottom end is assembled with the lamp panel 2, and a spring 67 is arranged between the clamping plate 65 and the retaining ring 66, and the spring 67 is sleeved outside the guide rod 64.

[0048] It should be noted that a threaded sleeve 20 is provided at the center of the lamp panel 2, the end of the guide rod 64 is provided with threads, and the guide rod 64 is threadedly connected with the threaded sleeve 20.

[0049] The lamp board 2 forms a movable elastic connection with the sleeve body 60 through the guide rod 64. When the telescopic rod 5 performs telescopic movement, vibration interference can be consumed through the sliding of the guide rod 64 and the compression deformation of the spring 67, ensuring that the lamp board 2 does not shake, and reducing human eye glare by improving the stability of the light source;

[0050] The setting of the clamping plate 65 and the limiting ring keeps the spring 67 in a tensioned state, enabling the lamp board 2 installed at the end of the guide rod 64 to closely contact the vane 62. The light source emitted by the lamp board 2 can be effectively transmitted to the vane 62 and diverge outward through the vanes 63 on the vane 62, realizing effective heat dissipation on the back side of the lamp board 2, reducing the risk of overheating damage to the lamp board 2, and reducing maintenance costs;

[0051] When the lamp board 2 generates heat continuously during illumination, the heat is transmitted to the spring 67 through the guide rod 64, which can cause the spring 67 to contract. At this time, the tension force of the spring 67 on the clamping plate 65 decreases, resulting in the downward movement of the guide rod 64, creating a spaced space between the vane 62 and the back side of the lamp board 2. Since the vane 62 is hinged to the extension arm 61, the vane 62 will swing after losing contact with the lamp board 2, thereby realizing active heat dissipation on the back side of the lamp board 2 and preventing the lamp board 2 from being damaged by overheating;

[0052] Since the end of the guide rod 64 is configured in cooperation with the lamp board 2, that is, different specifications of light source bodies can be installed at the end of the guide rod 64, and under the action of the spring 67, the installed light source bodies can all fit well with the vane 62. Since the vane 62 is hinged to the extension arm 61, even if the back side of the installed light source has an uneven inclined surface, the two vane 62s can cooperate with the spring 67 and their own swinging to achieve fitting with the back side of the light source body, improving the applicable range of the lamp for the light source body.

[0053] The sleeve body 60 includes an assembly head 600 and a sleeve 601. The telescopic end of the telescopic rod 5 is provided with a fitting sleeve 50. One end of the assembly head 600 is connected to the fitting sleeve 50 in a matching manner, and the other end of the assembly head 600 is connected to the sleeve 601 in a matching manner.

[0054] The assembly head 600 and the sleeve 601 are connected through assembly. During installation, first place the guide rod 64 and the clamping plate 65 into the assembly end of the sleeve 601. At this time, the end of the guide rod 64 extends out of the snap ring at the bottom of the sleeve 601, and the clamping plate 65 is located inside the sleeve 601. Then install the assembly head 600 and the sleeve 601 to achieve upper limit of the sliding path of the clamping plate 65, and at the same time facilitate disassembly from the telescopic rod 5.

[0055] The telescopic rod 5 is connected with a controller, and the controller is used for adjusting the telescopic length of the telescopic rod 5.

[0056] The lamp board 2 is connected with a regulator, and the regulator is used for turning on and off and adjusting the lamp board 2.

[0057] Adjust the brightness of the lamp panel 2 through a regulator, and cooperate with the adjustment of the distance between the lamp panel 2 and the lens 3, which improves the adjustable range of the glare index of the lamp, and is beneficial for the lamp to be adjusted to the required glare value according to the environment.

[0058] The vane 62 is provided with a connecting rod 7 at intervals on the outside. The connecting rod 7 is movably connected with a reflector 8. The top of the reflector 8 is located above the vane 62, and the bottom of the reflector 8 is inclined towards the center and located below the lamp panel 2.

[0059] It should be noted that the end of the connecting rod 7 has a ball head, and the reflector 8 has a spherical groove, and the ball head is arranged in cooperation with the spherical groove.

[0060] See attached Figure 8 , the inner side of the lamp cover 1 has a conical surface with the small end downward. A metal strip 10 is fixed on the conical surface. A magnet 80 is arranged on the top of the reflector 8, and the magnet 80 is adsorbed on the metal strip 10.

[0061] The reflector 8 can refract the light emitted from the lamp panel 2 and emitted outward, so that the light is concentrated and passes through the lens 3. When the telescopic rod 5 shortens, the lamp panel 2 moves upward in the lamp cover 1 and away from the lens 3. At this time, since the end of the reflector 8 is adsorbed on the metal strip 10 through the magnet 80, that is, when the telescopic rod 5 drives the vane 62 and the lamp panel 2 to move upward, the vane 62 swings at the hinge, and the conical surface that converges upward to the center causes the top of the reflector 8 to expand outward, that is, the bottom of the reflector mirror tilts further towards the center of the lamp panel 2, thereby improving the light beam concentration ability, avoiding the problem that the light intensity of the light beam collected by the lens 3 is weak due to the far distance between the lamp body and the lens 3, and is beneficial for the energy saving of the lamp panel 2.

[0062] On the other hand, when the telescopic rod 5 extends and the lamp panel 2 approaches the lens 3, the top of the reflector 8 swings inward, and the light concentration ability of the reflector 8 for the light emitted by the lamp panel 2 is weakened, preventing the light from being too strong and hurting people's eyes, realizing the adaptive adjustment of the light intensity. The reflector 8 moves synchronously with the lamp panel 2, that is, the reflector 8 is kept outside the lamp panel 2, forming a protection for the vane 62 and the outside of the lamp panel 2. There is no need to reinforce the whole lamp cover 1, which can reduce the possibility of the lamp panel 2 being damaged by external forces, improve the structural strength of the lamp and reduce the maintenance cost.

[0063] A lamp with an adjustable glare index, and its control method for the glare index specifically includes the following steps:

[0064] Step 1. Set the base at the target position and fix the position of the lamp cover;

[0065] Step 2. Start the lamp panel through a regulator and emit light through the lens;

[0066] Step 3. Adjust the length of the telescopic rod through a controller, change the distance between the lamp panel and the lens, so as to adjust the glare value.

[0067] It should also be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, terms such as "installed", "connected", "coupled", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0068] The above-described embodiments and / or implementation manners are only used to illustrate the preferred embodiments and / or implementation manners for realizing the technology of the present invention, and do not impose any formal restrictions on the implementation manners of the technology of the present invention. Any person skilled in the art, without departing from the scope of the technical means disclosed in the content of the present invention, can make some changes or modifications to other equivalent embodiments, but should still be regarded as the same technology or embodiment as the essence of the present invention.

[0069] In this article, specific examples are used to elaborate on the principles and implementation manners of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. The above is only the preferred implementation manner of the present application. It should be noted that due to the limited nature of written expression and objectively existing infinite specific structures, for those of ordinary skill in the art of this technology, without departing from the principle of the present application, several improvements, embellishments or changes can also be made, or the above technical features can be combined in an appropriate manner; these improvements, embellishments, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of the present application.

Claims

1. A glare index adjustable lamp, comprising: A lampshade (1), wherein a lamp panel (2) is provided inside the lampshade (1), a lens (3) is provided at the bottom of the lampshade (1), and a base (4) is provided at the top of the lampshade (1). The invention is characterized in that: the base (4) is provided with a telescopic rod (5), and the telescopic rod (5) is used to adjust the distance between the light panel (2) and the lens (3). A sleeve (60) is provided at the end of the telescopic rod (5), a guide rod (64) is slidably arranged in the sleeve (60), a clamping plate (65) is provided at the top of the guide rod (64), a retaining ring (66) is provided in the sleeve (60), the guide rod (64) passes through the retaining ring (66) and the bottom end is assembled with the lamp board (2), a spring (67) is provided between the clamping plate (65) and the retaining ring (66), the spring (67) is sleeved on the outside of the guide rod (64), an extension arm (61) is symmetrically provided on the side of the bottom of the sleeve (60), the extension arm (61) is hinged with a blade plate (62), the upper end surface of the blade plate (62) has blades (63) arranged at intervals, the lamp board (2) is movably connected to the bottom of the sleeve (60), and the lamp board (2) and the blade plate (62) are arranged in coordination.

2. The glare index adjustable lamp according to claim 1, characterized in that: The base (4) comprises a bottom plate (40), the telescopic rod (5) is arranged at the center of the bottom end of the bottom plate (40), a frame (41) is arranged around the bottom end of the bottom plate (40), and the frame (41) is arranged on the side of the telescopic rod (5).

3. The glare index adjustable lamp according to claim 2, characterized in that: An elastic sleeve (42) is provided in the frame (41), a rubber plate (43) is provided at the end of the elastic sleeve (42), a partition (44) is provided below the frame (41), the partition (44) is sleeved on the telescopic rod (5), the upper end of the partition (44) is connected to the rubber plate (43), and a support rod (45) is provided in an array at the lower end of the partition (44), and the support rod (45) is connected to the lampshade (1).

4. The glare index adjustable lamp according to claim 3, characterized in that: A through slot (46) is provided on the side wall of the frame (41), and the through slot (46) is located on the side of the elastic sleeve (42).

5. The glare index adjustable lamp according to claim 1, characterized in that: The sleeve body (60) comprises an assembly head (600) and a sleeve (601); the telescopic end of the telescopic rod (5) is provided with an assembly sleeve (50); one end of the assembly head (600) is cooperatively connected to the assembly sleeve (50); and the other end of the assembly head (600) is cooperatively connected to the sleeve (601).

6. The glare index adjustable lamp according to claim 1, characterized in that: The telescopic rod (5) is connected to a controller, and the controller is used to adjust the telescopic length of the telescopic rod (5).

7. The glare index adjustable lamp according to claim 1, characterized in that: The light panel (2) is connected to a regulator, and the regulator is used for turning on, off and regulating the light panel (2).

8. A control method for a glare index adjustable lamp, using the glare index adjustable lamp of claim 6, wherein the control method comprises the following steps: Step 1. Place the base (4) at a target position and fix the lampshade (1); Step 2. Start the light panel (2), and emit light from the lens (3); Step 3: The length of the telescopic rod (5) is adjusted by the controller to change the distance between the light panel (2) and the lens (3), thereby adjusting the glare value.

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