Round ceiling lamp

Abstract

The utility model discloses a round ceiling lamp which comprises a mounting base, a lampshade, a bottom cover and a light source, the bottom of the mounting base is detachably connected with an electric coupler, the electric coupler comprises three terminals and three annular conductor rails, the three terminals are correspondingly connected with the three conductor rails respectively, and the three annular conductor rails are arranged on the mounting base. The three wiring terminals are used for being electrically connected with an external power line. The top of the lampshade is detachably connected with a coupler guide seat electrically connected with the power connection coupler in a matched mode, the coupler guide seat comprises three sliding blocks, and the three sliding blocks are used for being electrically connected with the three conductor rails in a matched mode respectively. The bottom cover is detachably connected with the lampshade; a wire of the light source is detachably and electrically connected with the three sliding blocks of the coupler guide seat. The connecting buckles of the lampshade are inserted into the arc-shaped buckle holes of the mounting base and the lampshade is rotated to realize connection of the lampshade and the base, so that the situations of bending, twisting and additional connection of a power line are avoided, and the reliability of the power line and connection of the power line and the lamp body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a round ceiling lamp. Background Art

[0002] The upper surface of the ceiling lamp is relatively flat. When installed, the upper surface of the ceiling lamp is completely attached to the roof, so it is called a ceiling lamp. The ceiling lamp is beautiful, elegant and neat.

[0003] At present, ceiling lamps generally have an adapter plate. The adapter plate is first fixed to the roof, and then the lamp body is installed on the adapter plate by hanging or screwing. The position of the wiring terminal on the lamp body is fixed. When installing a ceiling lamp connected by screwing, if the reserved power cord is too long, the power cord needs to be bent and twisted. When the reserved power cord is too short, there is a risk of pulling the power cord or the power cord needs to be connected, which makes it inconvenient to achieve electrical connection of the lamp body. Professional electrical technicians are required to perform manual wiring operations, which has certain limitations. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a circular ceiling lamp, which is convenient for realizing the electrical connection between the lamp body and the power line, and ensures the reliability of the power line and the connection between the power line and the lamp body.

[0005] A circular ceiling lamp according to an embodiment of the utility model comprises a mounting base, a lampshade, a bottom cover and a light source, wherein the mounting base can be used for fixed connection with the roof, the mounting base is circular, and the mounting base is provided with a plurality of arc-shaped buckle holes distributed around the central axis of the mounting base, the arc-shaped buckle holes are in an arc shape, and the centers of the arc-shaped buckle holes are all on the central axis of the mounting base, and an electrical coupler can be detachably connected to the bottom of the mounting base, and the electrical coupler is used for electrically connecting to an external power line; the lampshade is circular, and the lamp The top of the lampshade is provided with a plurality of connecting buckles distributed in a circle with the central axis of the lampshade as the center, and the connecting buckles can pass through one end of the arc-shaped buckle hole and buckle on the side wall of the other end of the arc-shaped buckle hole. The top of the lampshade is detachably connected to a coupler guide seat, and the coupler guide seat is circular and is used to electrically cooperate with the power coupler; the bottom cover is detachably connected to the lampshade, and a chamber is formed between the lampshade and the bottom cover; the light source is arranged in the chamber, and the light source is detachably electrically connected to the coupler guide seat.

[0006] At least the following beneficial effects are achieved:

[0007] The mounting base and the power coupler are pre-connected to form a base, and the lampshade, the coupler guide, the light source and the bottom cover are connected to form a lamp body; when installing the ceiling lamp, the base is installed on the roof, the three wiring terminals are electrically connected to the external power line, and then the connection buckle on the lamp body is inserted into the arc buckle hole and the lamp body is rotated to achieve the connection between the lamp body and the base. The installation method is simple, the difficulty is small, and the operation is convenient and fast. When rotating the lamp body, the three sliders always maintain electrical connection with the three conductive rails respectively, so that the external power line, the three wiring terminals, the three conductive rails, the three sliders and the light source wires are connected in sequence, avoiding bending, twisting and the need to connect the power line separately, facilitating the electrical connection between the lamp body and the power line, and ensuring the reliability of the power line and the connection between the power line and the lamp body.

[0008] After the power coupler is electrically connected to the external power line, the installation and electrical connection of the ceiling lamp can be completed by connecting the lamp body to the base, and the professional skills required of the installer are relatively low.

[0009] According to some embodiments of the utility model, one end of the arc-shaped buckle hole is a passing section, and the other end of the arc-shaped buckle hole is a limiting section. There is a transition section between the passing section and the limiting section. The widths of the transition section and the limiting section are equal, and the width of the passing section is greater than the width of the transition section. The upper surface of the mounting seat forms a passing groove, a transition groove and a limiting groove in the areas corresponding to the passing section, the transition section and the limiting section, respectively. The connecting buckle includes a connecting column and a round buckle block arranged on the upper end surface of the connecting column. The diameter of the connecting column is matched with the width of the transition section and the limiting section so that the connecting column can move in the transition section and the limiting section. The diameter of the round buckle block is matched with the width of the passing section so that the round buckle block can pass through the passing section. The widths of the passing groove, the transition groove and the limiting groove are matched with the diameter of the round buckle block so that the round buckle block can be in the passing groove and can be against the bottom walls of the transition groove and the limiting groove.

[0010] According to some embodiments of the utility model, the height of the bottom wall of the transition groove first decreases and then increases along the direction from the passing groove to the limiting groove, the bottom wall of the transition groove close to one end of the limiting groove is higher than the bottom wall of the limiting groove, and the side wall of the limiting groove can prevent the round buckle block from moving toward the transition groove.

[0011] According to some embodiments of the utility model, an annular protrusion is provided on the upper surface of the mounting seat, the upper surface of the annular protrusion can be against the roof, and a plurality of connection holes are provided on the annular protrusion.

[0012] According to some embodiments of the present invention, the bottom cover and the lamp cover are connected by a plurality of screws.

[0013] According to some embodiments of the utility model, the bottom cover is provided with a plurality of positioning screw sleeves, the lampshade is provided with a plurality of the screws, and the screws and the positioning screw sleeves are threadedly connected in a one-to-one correspondence.

[0014] According to some embodiments of the utility model, an annular positioning ring is provided on the bottom cover, and an annular collar is provided on the outer edge of the lampshade, and the collar is sleeved on the positioning ring.

[0015] According to some embodiments of the present invention, the number of the arc-shaped button holes and the number of the connecting buckles are both 4.

[0016] According to some embodiments of the present invention, the mounting base and the power coupler are connected via a snap-fit ​​structure.

[0017] According to some embodiments of the present invention, the light source is an LED light ring.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of a circular ceiling lamp according to an embodiment of the utility model;

[0021] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0022] Figure 3 This is one of the exploded schematic diagrams of a circular ceiling lamp according to an embodiment of the utility model;

[0023] Figure 4 This is the second exploded schematic diagram of a circular ceiling lamp according to an embodiment of the utility model;

[0024] Figure Number:

[0025] Mounting seat 100; arc-shaped buckle hole 110; power coupler 120; through slot 130; transition slot 140; limit slot 150; annular protrusion 160;

[0026] Lampshade 200; connecting buckle 210; connecting column 211; round buckle block 212; coupler guide seat 220; collar 230; screw 240;

[0027] Bottom cover 300; positioning screw sleeve 310; positioning ring 320;

[0028] Light source 400;

[0029] Buckle structure 500. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figures 1 to 4The utility model discloses a circular ceiling lamp, including a mounting base 100, a lampshade 200, a bottom cover 300 and a light source 400. The mounting base 100 can be used for fixed connection with the roof. The mounting base 100 is circular, and a plurality of arc-shaped buckle holes 110 are arranged on the mounting base 100, which are distributed around the central axis of the mounting base 100. The arc-shaped buckle holes 110 are arc-shaped, and the centers of the arc-shaped buckle holes 110 are all on the central axis of the mounting base 100. The bottom of the mounting base 100 can be detachably connected with an electric coupler 120, and the electric coupler 120 includes three wiring terminals and three annular conductive rails, and the three wiring terminals are respectively connected to the three conductive rails. The three wiring terminals are used to connect to an external power line. The lampshade 200 is circular, and a plurality of connecting buckles 210 distributed around the central axis of the lampshade 200 are provided on the top of the lampshade 200, and the connecting buckles 210 can pass through one end of the arc-shaped buckle hole 110 and buckle on the side wall of the other end of the arc-shaped buckle hole 110. The top of the lampshade 200 is detachably connected to a coupler guide seat 220, and the coupler guide seat 220 includes three sliders, and the three sliders are respectively used to electrically cooperate with three conductive rails; the bottom cover 300 is detachably connected to the lampshade 200, and a chamber is formed between the lampshade 200 and the bottom cover 300; the light source 400 is arranged in the chamber, and the wires of the light source 400 are detachably electrically connected to the three sliders of the coupler guide seat 220.

[0035] The power coupler 120 is connected to the mounting base 100 in advance, the coupler guide 220 is connected to the lampshade 200, and then the light source 400 is electrically connected to the coupler guide 220, and the bottom cover 300 is connected to the lampshade 200. When installing the ceiling lamp, the mounting base 100 is first connected to the roof, and then the power coupler 120 is electrically connected to the external power line, and then the multiple connecting buckles 210 on the lampshade 200 are respectively inserted into one end of the multiple arc buckle holes 110, and the lampshade 200 is rotated so that the connecting buckles 210 are buckled on the side wall of the other end of the arc buckle hole 110. At this time, the coupler guide 220 and the power coupler 120 are docked, and the ceiling lamp is installed, and the light source 400 is electrically connected to the external power line.

[0036] The various components of the ceiling lamp are detachably connected. The mounting base 100 and the power coupler 120 are pre-connected as a base, and the lampshade 200, the power coupler 120, the light source 400 and the bottom cover 300 are connected as a lamp body. When installing the ceiling lamp, the connecting buckle 210 on the lamp body is inserted into the arc-shaped buckle hole 110 and the lamp body is rotated to connect the lamp body to the base. The installation method is simple, the difficulty is small, and the operation is convenient and quick.

[0037] When the light source 400 is damaged, the bottom cover 300 can be removed from the lampshade 200 to replace the light source 400, or the lamp body can be rotated in the opposite direction, the connecting buckle 210 can be removed from the side wall at the other end of the arc-shaped buckle hole 110, and then the connecting buckle 210 can be pushed out of the arc-shaped buckle hole 110 to complete the separation of the lamp body and the base, and then the bottom cover 300 can be removed from the lampshade 200 to replace the light source 400.

[0038] When the lamp body is rotated, the three sliders always remain electrically connected to the three conductive rails respectively, so that the external power cord, three terminal blocks, three conductive rails, three sliders and the wires of the light source are connected in sequence, avoiding bending, twisting and the need to connect the power cord separately, facilitating the electrical connection between the lamp body and the power cord, ensuring the reliability of the power cord and the connection between the power cord and the lamp body, and requiring low professional skills of the installer.

[0039] It is understandable that the power line includes a live line, a neutral line and a ground line, and the light source wire includes a live line, a neutral line and a ground line. The diameters of the three annular conductive rails increase successively and are all coaxial with the central axis of the mounting base 100 .

[0040] In this embodiment, the number of the arc-shaped button holes 110 and the number of the connecting buttons 210 are both four.

[0041] See also Figure 2 In some embodiments, one end of the arc-shaped button hole 110 is a passing section, and the other end of the arc-shaped button hole 110 is a limiting section. There is a transition section between the passing section and the limiting section. The widths of the transition section and the limiting section are equal, and the width of the passing section is greater than the width of the transition section. The upper surface of the mounting seat 100 forms a passing groove 130, a transition groove 140 and a limiting groove 150 in the areas corresponding to the passing section, the transition section and the limiting section, respectively.

[0042] The connecting buckle 210 includes a connecting column 211 and a round buckle block 212 arranged on the upper end surface of the connecting column 211. The diameter of the connecting column 211 is matched with the width of the transition section and the limit section so that the connecting column 211 can move in the transition section and the limit section. The diameter of the round buckle block 212 is matched with the width of the passing section so that the round buckle block 212 can pass through the passing section. The width of the through groove 130, the transition groove 140 and the limit groove 150 is matched with the diameter of the round buckle block 212 so that the round buckle block 212 can be in the through groove 130 and can be against the bottom wall of the transition groove 140 and the limit groove 150.

[0043] When the connecting buckle 210 is assembled with the arc buckle hole 110, the round buckle block 212 is first passed through the through section from bottom to top and inserted into the through groove 130. At this time, the connecting column 211 is arranged in the through section, and then the lampshade 200 is rotated so that the round buckle block 212 slides into the transition groove 140 and the limit groove 150 in sequence, and the connecting column 211 slides into the transition section and the limit section in sequence. Since the diameter of the round buckle block 212 matches the width of the through section, the width of the through section is greater than the width of the transition section and the limit section, the round buckle block 212 cannot pass through the transition section and the limit section up and down, so that the round buckle block 212 can be against the bottom wall of the limit groove 150, and the bottom wall of the limit groove 150 supports the round buckle block 212 and the entire lamp body, that is, the mounting seat 100 supports the lampshade 200, the coupler guide seat 220, the light source 400 and the bottom cover 300. When disassembling the ceiling lamp, the reverse operation can be performed.

[0044] It is understandable that the through groove 130, the transition groove 140, the stop groove 150, the through section, the transition section and the stop section form a stepped hole of different sizes. The depth of the through groove 130, the transition groove 140 and the stop groove 150 can be set as required, so that the part of the structure or the whole of the round buckle block 212 is accommodated in the through groove 130, the transition groove 140 or the stop groove 150, so as to avoid the interference between the round buckle block 212 and the roof. The connecting column 211 and the round buckle block 212 are both cylindrical. Of course, the connecting column 211 and the round buckle block 212 can also be other shapes, such as a pentagonal prism.

[0045] See also Figure 2 In some of the embodiments, the height of the bottom wall of the transition groove 140 is first decreased and then increased along the direction from the through groove 130 to the limiting groove 150. When the round buckle block 212 slides into the transition groove 140, the lampshade 200 is released, and the lampshade 200 moves downward under the action of gravity, so that the round buckle block 212 moves downward and abuts against the bottom wall of the transition groove 140. At this time, the transition groove 140 plays the role of limiting the round buckle block 212 from sliding into the through groove 130 and the limiting groove 150.

[0046] The bottom wall of one end of the transition groove 140 close to the limiting groove 150 is higher than the bottom wall of the limiting groove 150. When the round buckle block 212 slides into the limiting groove 150 and abuts against the bottom wall of the limiting groove 150, the peripheral wall of the round buckle block 212 will abut against the side wall of the limiting groove 150 close to the transition groove 140. The side wall of the limiting groove 150 can prevent the round buckle block 212 from moving toward the transition groove 140, thereby limiting the round buckle block 212 in the limiting groove 150.

[0047] When the lampshade 200 needs to be removed from the mounting base 100, it is necessary to push up the lampshade 200 so that the round buckle block 212 rises and disengages from the bottom wall of the limiting groove 150 and the side wall of the limiting groove 150 close to the transition groove 140, and then rotate the lampshade 200 in the opposite direction so that the round buckle block 212 slides into the transition groove 140 and the through groove 130 in turn, and then release the lampshade 200 and the entire lamp body. Under the action of gravity, the round buckle block 212 passes through the through section from top to bottom, so that the connecting buckle 210 exits the arc buckle hole 110, and the lampshade 200 and the entire lamp body are removed from the mounting base 100.

[0048] See also Figure 1 and Figure 3 In some embodiments, the upper surface of the mounting seat 100 is provided with an annular protrusion 160, and the upper surface of the annular protrusion 160 can be against the roof. When the mounting seat 100 is connected to the roof, the upper surface of the annular protrusion 160 first abuts against the roof to complete the positioning and fitting of the mounting seat 100 and the roof. The annular protrusion 160 is provided with a plurality of connection holes, and the mounting seat 100 is fixed to the roof by fasteners passing through the connection holes. The provision of the annular protrusion 160 can make a distance between the main body of the mounting seat 100 and the roof, and the distance can accommodate the round buckle block 212, so as to ensure that the round buckle block 212 can move smoothly after passing through the arc buckle hole 110.

[0049] See also Figure 2 and Figure 4 In some embodiments, the mounting base 100 and the power coupler 120 are connected by a buckle structure 500, and the buckle structure 500 can realize convenient and quick connection and separation of the mounting base 100 and the power coupler 120. The projection of the power coupler 120 in the vertical direction is within the projection of the annular protrusion 160 in the vertical direction.

[0050] It can be imagined that the snap-on structure 500 is in a state where the snap-on structure 500 includes a plurality of snap-on plates arranged on the power coupler 120 and a plurality of mounting holes arranged on the mounting base 100, wherein the plurality of snap-on plates are distributed in a ring shape, and a snap portion is provided on the snap-on plate, which passes through the mounting hole and can rest against the upper surface of the mounting base 100.

[0051] In this embodiment, the number of mounting holes and the number of buckle plates are both 4.

[0052] See also Figure 1 and Figure 3 In some of the embodiments, the bottom cover 300 and the lampshade 200 are connected by a plurality of screws 240, so that the bottom cover 300 and the lampshade 200 can be quickly connected and disassembled.

[0053] In some of the embodiments, a plurality of positioning screw sleeves 310 are disposed on the bottom cover 300, and a plurality of screws 240 are disposed on the lampshade 200. The screws 240 and the positioning screw sleeves 310 are threadedly connected in a one-to-one correspondence.

[0054] In this embodiment, the number of the screws 240 and the number of the positioning screw sleeves 310 are both 5. The 5 screws 240 are distributed in a ring shape on the lampshade 200, and the 5 positioning screw sleeves 310 are distributed in a ring shape on the bottom cover 300.

[0055] See also Figure 3 In some of the embodiments, an annular positioning ring 320 is provided on the bottom cover 300, and an annular ring 230 is provided on the outer edge of the lampshade 200. The ring 230 is sleeved on the positioning ring 320 to complete the horizontal positioning of the lampshade 200 and the bottom cover 300, thereby facilitating the docking of the lampshade 200 and the bottom cover 300.

[0056] In some embodiments, the light source 400 is an LED light ring, which has the advantages of energy saving and high brightness. Of course, the light source 400 can also be other forms of illuminants.

[0057] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A circular ceiling lamp, characterized in that: include: A mounting seat (100), the mounting seat (100) can be used for fixed connection with a roof, the mounting seat (100) is circular, the mounting seat (100) is provided with a plurality of arc-shaped buckle holes (110) distributed around the central axis of the mounting seat (100), the arc-shaped buckle holes (110) are arc-shaped, the centers of the arc-shaped buckle holes (110) are all located on the central axis of the mounting seat (100), the bottom of the mounting seat (100) is detachably connected with an electrical coupler (120), the electrical coupler (120) comprises three wiring terminals and three annular conductive rails, the three wiring terminals and the three conductive rails are respectively connected correspondingly, and the three wiring terminals are used for electrically connecting to an external power line; A lampshade (200), wherein the lampshade (200) is circular, and the top of the lampshade (200) is provided with a plurality of connection buckles (210) distributed around the central axis of the lampshade (200), and the connection buckles (210) can pass through one end of the arc-shaped buckle hole (110) and buckle on the side wall of the other end of the arc-shaped buckle hole (110), and the top of the lampshade (200) is detachably connected to a coupler guide seat (220), and the coupler guide seat (220) includes three sliders, and the three sliders are respectively used to electrically cooperate with the three conductive rails; A bottom cover (300), the bottom cover (300) being detachably connected to the lampshade (200), and a chamber being formed between the lampshade (200) and the bottom cover (300); A light source (400) is disposed in the chamber, and a wire of the light source (400) is detachably electrically connected to the three sliders of the coupler guide seat (220).

2. The circular ceiling lamp according to claim 1, characterized in that: One end of the arc-shaped buckle hole (110) is a passing section, and the other end of the arc-shaped buckle hole (110) is a limiting section. A transition section is formed between the passing section and the limiting section. The widths of the transition section and the limiting section are equal, and the width of the passing section is greater than the width of the transition section. A passing groove (130), a transition groove (140) and a limiting groove (150) are respectively formed on the upper surface of the mounting seat (100) in areas corresponding to the passing section, the transition section and the limiting section. The connecting buckle (210) comprises a connecting column (211) and a round buckle block (212) provided on the upper end surface of the connecting column (211). The connecting column ( The diameter of the connecting column (211) matches the width of the transition section and the limiting section, so that the connecting column (211) can move in the transition section and the limiting section; the diameter of the round buckle block (212) matches the width of the passing section, so that the round buckle block (212) can pass through the passing section; the widths of the passing groove (130), the transition groove (140) and the limiting groove (150) match the diameter of the round buckle block (212), so that the round buckle block (212) can be located in the passing groove (130) and can abut against the bottom walls of the transition groove (140) and the limiting groove (150).

3. The circular ceiling lamp according to claim 2, characterized in that: The height of the bottom wall of the transition groove (140) first decreases and then increases along the direction from the through groove (130) to the limiting groove (150); the bottom wall of one end of the transition groove (140) close to the limiting groove (150) is higher than the bottom wall of the limiting groove (150); and the side wall of the limiting groove (150) can prevent the round buckle block (212) from moving in the direction of the transition groove (140).

4. The circular ceiling lamp according to claim 3, characterized in that: An annular protrusion (160) is provided on the upper surface of the mounting seat (100), the upper surface of the annular protrusion (160) can be pressed against the roof, and a plurality of connection holes are provided on the annular protrusion (160).

5. The circular ceiling lamp according to claim 1, characterized in that: The bottom cover (300) and the lamp cover (200) are connected via a plurality of screws (240).

6. The circular ceiling lamp according to claim 5, characterized in that: The bottom cover (300) is provided with a plurality of positioning screw sleeves (310), the lamp cover (200) is provided with a plurality of screws (240), and the screws (240) and the positioning screw sleeves (310) are threadedly connected in a one-to-one correspondence.

7. The circular ceiling lamp according to claim 1, characterized in that: The bottom cover (300) is provided with an annular positioning ring (320), and the outer edge of the lampshade (200) is provided with an annular sleeve ring (230), and the sleeve ring (230) is sleeved on the positioning ring (320).

8. The circular ceiling lamp according to claim 1, characterized in that: The number of the arc-shaped button holes (110) and the number of the connecting buttons (210) are both four.

9. The circular ceiling lamp according to claim 1, characterized in that: The mounting seat (100) and the power coupler (120) are connected via a snap-fit ​​structure (500).

10. The circular ceiling lamp according to claim 1, characterized in that: The light source (400) is an LED light ring.

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