Lighting device

Abstract

The embodiment of the utility model provides a lighting device. The lighting device comprises a first light-emitting assembly and a second light-emitting assembly which are connected. The first light-emitting assembly comprises a first light source plate and a first light-emitting element, and light emitted by the first light source plate can be emitted out through the first light-emitting element. The second light-emitting assembly comprises a second light source plate and a second light-emitting element. The second light-emitting element comprises an annular light-emitting surface, the annular light-emitting surface is located on the side, away from the first light source plate, of the first light-emitting element, and light emitted by the second light source plate can enter the second light-emitting element and is emitted out towards an area defined by the annular light-emitting surface through the annular light-emitting surface; the annular light-emitting surface comprises a first edge and a second edge, the first edge surrounds the peripheral edge of the first light-emitting element, the second edge is located on the side, away from the first light-emitting element, of the first edge, and the area of the cross section of the annular light-emitting surface is gradually increased in the direction from the first edge to the second edge.

Description

Technical Field

[0001] The present application relates to the technical field of lighting device design, and in particular to a lighting device. Background Art

[0002] In the related art, some lighting devices can only emit light directly downward, but not from the side. For example, a clear sky lamp (also called a blue sky lamp or a blue sky lamp) is installed on the ceiling, and generally can only emit light downward. In this way, since the lighting device has a relatively single light-emitting mode, it cannot meet the needs of users well. Utility Model Content

[0003] The embodiments of the present application provide a lighting device to solve the problems existing in the background technology.

[0004] The lighting device provided by the embodiment of the present application includes: a first light-emitting component and a second light-emitting component connected to each other; the first light-emitting component includes a first light source board and a first light-emitting element, and the light emitted by the first light source board can be emitted through the first light-emitting element; the second light-emitting component includes a second light source board and a second light-emitting element; the second light-emitting element includes an annular light-emitting surface, and the annular light-emitting surface is located on the side of the first light-emitting element away from the first light source board, and the light emitted by the second light source board can be emitted into the second light-emitting element and emitted toward the area surrounded by the annular light-emitting surface through the annular light-emitting surface; the annular light-emitting surface includes a first edge and a second edge, the first edge surrounds the outer peripheral edge of the first light-emitting element, and the second edge is located on the side of the first edge away from the first light-emitting element, and the cross-sectional area of ​​the annular light-emitting surface gradually increases in the direction along the first edge toward the second edge.

[0005] Optionally, the first light emitting element includes a bright light area and a dark area, the dark area surrounds the bright light area, and when the first light-emitting component is emitting light, the brightness of the dark area is less than a preset value; the first edge is in contact with the first light emitting element, and the orthographic projection of the first edge on the first light emitting element is located within the bright light area.

[0006] Optionally, a cross-sectional shape of a cross section of the annular light-emitting surface along its own circumferential direction is a line segment.

[0007] Optionally, the second light emitting element supports the first light emitting element.

[0008] Optionally, the first light-emitting component also includes a first lamp body, and the second light-emitting component also includes a second lamp body; the first lamp body is connected to the second lamp body, and the second lamp body includes an outer frame and an inner frame that are detachably connected, the inner frame is sleeved outside the first light-emitting component, and the outer frame is sleeved outside the inner frame, the inner frame and the outer frame have a spacing area along the axial direction of the second light-emitting component, and the second light-emitting element is clamped in the spacing area along the axial direction of the second light-emitting component.

[0009] Optionally, the second light emitting element is provided with a supporting surface, and the supporting surface supports the first light emitting element; the outer periphery of the supporting surface is provided with a convex ring, and the convex ring is arranged around the outer periphery of the inner frame, and the convex ring also abuts against the inner frame along the axial direction of the second light emitting component.

[0010] Optionally, the second light-emitting component further includes a light guide, which is arranged around the outer circumference of the second light emitting element, and the second light source board is opposite to one end of the light guide, and the light guide is used to transmit the light emitted by the second light source board to the second light emitting element.

[0011] Optionally, the second light emitting element and the light guide are sandwiched between the inner frame and the outer frame along the radial direction of the second light emitting component.

[0012] Optionally, the light guide is arc-shaped, and the second light source plate is also arc-shaped.

[0013] Optionally, the first light-emitting component also includes a first light diffusing element; the first light emitting element is covered on the open end of the first lamp body, and the first light emitting element is connected to the first lamp body, the first light diffusing element is arranged on the side of the first light emitting element facing the first lamp body, the first light diffusing element is sandwiched between the first lamp body and the first light emitting element, and the first light source panel is arranged on the side of the first lamp body facing the first light diffusing element.

[0014] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0015] In the embodiment of the present application, the first light-emitting component can emit light through the first light-emitting element, and the second light-emitting component can emit light through the second light-emitting element. Since the annular light-emitting surface surrounds the outer peripheral edge of the first light-emitting element, the light emitted by the first light-emitting component is emitted toward the area surrounded by the annular light-emitting surface, and the light emitted by the second light-emitting component is also emitted toward the area surrounded by the annular light-emitting surface. In this way, the light emitted by the first light-emitting component and the light emitted by the second light-emitting component are respectively directed in different directions, which can meet the user's diverse needs for the light emitted by the lighting device.

[0016] In addition, since the cross-sectional area of ​​the annular light-emitting surface gradually increases in the direction from the first edge toward the second edge, when the lighting device is installed on the ceiling, the light emitted by the second light-emitting component can be emitted obliquely through the annular light-emitting surface, which can have an oblique effect similar to sunlight, thereby improving the light-emitting effect of the lighting device. Moreover, compared with the solution in which the annular light-emitting surface is vertically arranged, in the embodiment of the present application, the annular light-emitting surface is inclined, and the surface area of ​​the annular light-emitting surface is larger, so that the light-emitting surface of the second light-emitting component appears larger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of a lighting device provided in an embodiment of the present application;

[0019] Figure 2 Provided in the embodiments of this application Figure 1 An exploded schematic diagram of the lighting device shown in FIG.

[0020] Figure 3 A schematic diagram of a lighting device provided in an embodiment of the present application from another angle;

[0021] Figure 4 Provided in the embodiments of this application Figure 3 An exploded schematic diagram of the lighting device shown in FIG.

[0022] Figure 5 An exploded schematic diagram of a first light-emitting component provided in an embodiment of the present application;

[0023] Figure 6 A schematic diagram of a frame provided in an embodiment of the present application;

[0024] Figure 7 Provided in the embodiments of this application Figure 6 A partial schematic diagram of the frame shown in FIG.

[0025] Figure 8 A schematic diagram of a first light-emitting component provided in an embodiment of the present application;

[0026] Fig. 9 An exploded schematic diagram of an illumination device provided in an embodiment of the present application, showing a situation where the first light-emitting component is in an assembled state and the second light-emitting component is in a disassembled state;

[0027] Fig.10 A schematic diagram of a second light source panel, a light guide, and a second light output element provided in an embodiment of the present application;

[0028] Fig.11 A cross-sectional view of a lighting device provided in an embodiment of the present application;

[0029] Fig.12 Provided in the embodiments of this application Fig.11 A partial schematic diagram of the lighting device shown in FIG.

[0030] Description of reference numerals:

[0031] 1-lighting device; 10-first light-emitting component; 11-first light source board; 12-first light-emitting element; 121-bright light area; 122-dark area; 123-hook; 13-first lamp body; 131-bottom plate; 132-frame; 1321-hook protrusion; 14-first light diffusion element; 20-second light-emitting component; 21-second light source board; 22-second light-emitting element; 221-annular light-emitting surface; 2211-first edge; 2212-second edge; 222-supporting surface; 223-convex ring; 23-second lamp body; 231-outer frame; 232-inner frame; 24-light guide; 30-connecting piece. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.

[0035] Furthermore, it is required that the present application be understood not only by the actual terms used but also by the meanings connoted by each term.

[0036] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0037] The present application embodiment provides a lighting device. Figures 1 to 12 The lighting device 1 provided in the embodiment of the present application includes: a first light-emitting component 10 and a second light-emitting component 20 connected to each other.

[0038] The first light-emitting assembly 10 includes a first light source board 11 and a first light-emitting element 12. Exemplarily, the first light source board 11 includes a first circuit board and a first light-emitting element provided on the first circuit board. For example, the first light-emitting element is a light-emitting diode (LED). The light emitted by the first light source board 11 can be emitted through the first light-emitting element 12. Exemplarily, the first light source board 11 faces the first light-emitting element 12, so that the first light source board 11 can emit light toward the first light-emitting element 12. Exemplarily, the first light-emitting assembly 10 can be a structure similar to a clear sky lamp.

[0039] The second light emitting assembly 20 includes a second light source board 21 and a second light emitting element 22. Exemplarily, the second light source board 21 includes a second circuit board and a second light emitting element disposed on the second circuit board. For example, the second light emitting element is a light emitting diode.

[0040] Combination Figures 10 to 12 The second light emitting element 22 includes an annular light emitting surface 221. The annular light emitting surface 221 is located on the side of the first light emitting element 12 away from the first light source board 11. The light emitted by the second light source board 21 can enter the second light emitting element 22 and be emitted toward the area surrounded by the annular light emitting surface 221 through the annular light emitting surface 221.

[0041] The annular light emitting surface 221 includes a first edge 2211 and a second edge 2212. The first edge 2211 surrounds the outer peripheral edge of the first light emitting element 12, and the second edge 2212 is located on the side of the first edge 2211 that is away from the first light emitting element 12. In the direction from the first edge 2211 to the second edge 2212, the cross-sectional area of ​​the annular light emitting surface 221 gradually increases. Exemplarily, the second light emitting component 20 is arranged vertically. The first edge 2211 is located above the second edge 2212, and in the vertical downward direction, the cross-sectional area of ​​the annular light emitting surface 221 gradually increases.

[0042] In this way, by adopting the solution provided in the embodiment of the present application, the first light-emitting component 10 can emit light through the first light-emitting element 12, and the second light-emitting component 20 can emit light through the second light-emitting element 22. Since the annular light-emitting surface 221 surrounds the outer peripheral edge of the first light-emitting element 12, the light emitted by the first light-emitting component 10 is emitted toward the area surrounded by the annular light-emitting surface 221, and the light emitted by the second light-emitting component 20 is also emitted toward the area surrounded by the annular light-emitting surface 221. In this way, the light emitted by the first light-emitting component 10 and the light emitted by the second light-emitting component 20 are respectively directed in different directions, which can meet the diverse needs of users for the light emitted by the lighting device 1.

[0043] In addition, since the cross-sectional area of ​​the annular light-emitting surface 221 gradually increases in the direction from the first edge 2211 to the second edge 2212, when the lighting device 1 is installed on the ceiling, the light emitted by the second light-emitting component 20 can be emitted obliquely through the annular light-emitting surface 221, which can achieve an oblique effect similar to sunlight, thereby improving the light-emitting effect of the lighting device 1. Moreover, compared with the solution in which the annular light-emitting surface is vertically arranged, in the embodiment of the present application, the annular light-emitting surface 221 is inclined, and the surface area of ​​the annular light-emitting surface 221 is larger, so that the light-emitting surface of the second light-emitting component 20 appears larger.

[0044] refer to Figures 1 to 4 In some embodiments, the lighting device 1 further includes a connector 30. The connector 30 is respectively connected to the first light-emitting component 10 and the second light-emitting component 20. Thus, the first light-emitting component 10 and the second light-emitting component 20 can be connected through the connector 30.

[0045] refer to Fig.12 In some embodiments, the first light emitting element 12 includes a bright light area 121 and a dark area 122. The dark area 122 surrounds the bright light area 121. When the first light emitting component 10 emits light, the brightness of the dark area 122 is less than a preset value. In other words, Figure 8 When the first light emitting component 10 emits light, the light at the outer edge of the first light emitting element 12 is darker, or the outer edge of the first light emitting element 12 basically does not emit light.

[0046] Continue to refer Fig.12In some embodiments, the first edge 2211 abuts against the first light emitting element 12, and the orthographic projection of the first edge 2211 on the first light emitting element 12 is located in the bright light area 121. In this way, the dark area 122 can be shielded by the annular light emitting surface 221. Thus, when the lighting device 1 is in a working state, the bright light area 121 is lit, and the annular light emitting surface 221 is lit, so that the lighting device 1 does not have a dark light area or a non-luminous area between the annular light emitting surface 221 and the first light emitting element 12, so as to avoid the appearance of a shadow area between the annular light emitting surface 221 and the first light emitting element 12.

[0047] refer to Fig.12 In some embodiments, the cross-sectional shape of the annular light-emitting surface 221 along its own circumferential direction is a line segment. Exemplarily, when the first edge 2211 and the second edge 2212 of the annular light-emitting surface 221 are both circular, the shape of the annular light-emitting surface 221 is similar to the shape of the side of a truncated cone. It should be noted that a truncated cone is a geometric body formed by rotating the straight line where the waist of a right-angled trapezoid perpendicular to the base is located as the rotation axis and the remaining sides. The rotation axis is called the axis of the truncated cone, the circular surface formed by the rotation of the upper and lower bases of the right-angled trapezoid is called the upper and lower bases of the truncated cone, and the curved surface formed by the rotation of the other waist is called the side of the truncated cone. In addition, the truncated cone can also be considered as the part of the cone cut by two perpendicular planes of its axis, so it can also be called a "truncated cone". In this way, the light emission of the annular light-emitting surface 221 can be made more uniform by making the cross-sectional shape of the cross-sectional shape of the annular light-emitting surface 221 along its own circumferential direction an inclined line segment.

[0048] refer to Fig.12 In some embodiments, the second light emitting element 22 supports the first light emitting element 12. In this way, the second light emitting element 22 can support the first light emitting element 12 to support the first light emitting element 12, so as to eliminate the installation error gap between the first light emitting element 12 and the first lamp body 13 of the first light emitting assembly 10 in the vertical direction.

[0049] refer to Figure 5 and Fig.12 In some embodiments, the first light emitting assembly 10 further includes a first lamp body 13. Fig. 9 and Fig.12 The second light emitting assembly 20 further includes a second lamp body 23. Figure 1 and Figure 2 , the first lamp body 13 is connected to the second lamp body 23. Fig.12The second lamp body 23 includes an outer frame 231 and an inner frame 232 which are detachably connected. The inner frame 232 is sleeved outside the first light-emitting component 10, and the outer frame 231 is sleeved outside the inner frame 232. The inner frame 232 and the outer frame 231 have a spacing area along the axial direction of the second light-emitting component 20, and the second light-emitting element 22 is clamped in the spacing area along the axial direction of the second light-emitting component 20. Fig.12 Taking the installation posture of the lighting device 1 shown as an example, the inner frame 232 and the outer frame 231 are provided with a spacing area along the vertical direction, and the second light emitting element 22 is clamped in the spacing area along the vertical direction.

[0050] refer to Fig.12 In some embodiments, the second light emitting element 22 is provided with a supporting surface 222, and the supporting surface 222 supports the first light emitting element 12. A convex ring 223 is provided on the outer periphery of the supporting surface 222, and the convex ring 223 is arranged around the outer periphery of the inner frame 232, and the convex ring 223 also abuts against the inner frame 232 along the axial direction of the second light emitting component 20. For example, the convex ring 223 is arranged horizontally, and the convex ring 223 abuts against the inner frame 232 in the vertical direction. In this way, the second light emitting element 22 can be limited between the outer frame 231 and the inner frame 232 in the vertical direction by the abutment between the inner frame 232 and the convex ring 223.

[0051] refer to Fig.12 In some embodiments, the second light-emitting component 20 further includes a light guide 24. The light guide 24 is arranged around the outer circumference of the second light emitting element 22. Exemplarily, the light guide 24 is an annular light guide. The second light source plate 21 is opposite to one end of the light guide 24, and the light guide 24 is used to transmit the light emitted by the second light source plate 21 to the second light emitting element 22. For example, the second light source plate 21 is located above the light guide 24, and the second light source plate 21 is opposite to the upper end of the light guide 24. Thus, the second light source plate 21 emits light downward, the light enters the light guide 24, and then, under the guidance of the light guide 24, enters the second light emitting element 22. Exemplarily, a reflective structure is provided on the side of the light guide 24 facing away from the second light emitting element 22, and the light directed to the light guide 24 by the reflective structure can be reflected toward the second light emitting element 22.

[0052] refer to Fig.12 In some embodiments, the second light emitting element 22 and the light guide 24 are sandwiched between the inner frame 232 and the outer frame 231 along the radial direction of the second light emitting assembly 20. When the second light emitting element 22 includes a convex ring 223, the convex ring 223 and the light guide 24 can be sandwiched between the inner frame 232 and the outer frame 231 along the horizontal direction.

[0053] refer to Fig. 9 and Fig.10In some embodiments, the light guide 24 is arc-shaped, and the second light source panel 21 is also arc-shaped. In other words, the light guide 24 is a non-full circle structure. In addition, for example, the arc length of the second light source panel 21 is substantially equal to the arc length of the light guide 24. Exemplarily, when the light guide 24 is arc-shaped, the central angle of the light guide 24 is 240 degrees. In this way, the light effect of sunlight entering the room through the window can be better simulated by making the light guide 24 a non-full circle structure. Of course, in other embodiments, the light guide 24 can also be annular, and correspondingly, the second light source panel 21 is also annular.

[0054] refer to Figure 5 and Fig.12 In some embodiments, the first light emitting assembly 10 further includes a first light diffusing element 14. The first light emitting element 12 is capped at the open end of the first lamp body 13, and the first light emitting element 12 is connected to the first lamp body 13. The first light diffusing element 14 is disposed on a side of the first light emitting element 12 facing the first lamp body 13, the first light diffusing element 14 is sandwiched between the first lamp body 13 and the first light emitting element 12, and the first light source plate 11 is disposed on a side of the first lamp body 13 facing the first light diffusing element 14.

[0055] It should be noted that the second light emitting element 22 may also be a light diffusing element. To distinguish it from the first light diffusing element 14, when the second light emitting element 22 is a light diffusing element, the second light emitting element 22 may be referred to as a second light diffusing element.

[0056] It should also be noted that the material of the light diffusion element can be similar to the material of the light diffusion plate in the prior art. Among them, the light diffusion plate is a physical phenomenon of refraction, reflection and scattering when light encounters two media with different refractive indices (densities) during its path, by chemical or physical means, by adding inorganic or organic light diffusers to substrates such as polymethylmethacrylate (PMMA), polycarbonate (PC), polystyrene (PS), etc., or by artificially adjusting the light through the array arrangement of micro-feature structures on the surface of the substrate, so that the light is refracted, reflected, and scattered in different directions, thereby changing the path of the light and achieving sufficient dispersion of the incident light to produce an optical diffusion effect.

[0057] refer to Figures 5 to 8 and Fig.12In some embodiments, the first lamp body 13 includes a base plate 131 and a frame 132. The frame 132 is arranged around the periphery of the base plate 131, and the upper end of the frame 132 is connected to the base plate. The first light source panel 11 can be arranged on the side of the base plate 131 facing the first light emitting element 12. In some embodiments, the lighting device 1 also includes a hanging plate. The hanging plate can be installed on the ceiling. After the hanging plate is installed on the ceiling, the base plate 131 can be connected to the hanging plate, so that the first light-emitting component 10 can be fixed to the ceiling via the hanging plate.

[0058] In addition, reference Figure 5 In some embodiments, a plurality of hooks 123 are disposed on the outer edge of the first light emitting element 12. Figure 6 and Figure 7 The frame 132 is provided with a plurality of hooking protrusions 1321. The first light output element 12 can be connected to the frame 132 so that the hooks 123 are hooked with the hooking protrusions 1321 in a one-to-one correspondence.

[0059] In order to help those skilled in the art to better understand the solution provided by the embodiment of the present application, the assembly method of the lighting device 1 is briefly described below in conjunction with the accompanying drawings.

[0060] refer to Figures 5 to 8 , can be installed on the bottom plate 131 first. Further, the bottom plate 131 and the frame 132 can be connected. Further, the first light diffusion element 14 can be arranged between the first lamp body 13 and the first light emitting element 12, and then, the first light emitting element 12 and the first light diffusion element 14 can be lifted up, so that the first light emitting element 12 is docked with the frame 132, and then the hooks 123 of the first light emitting element 12 are hooked with the hooking protrusions 1321 of the frame 132 in a one-to-one correspondence. Thus, the assembly of the first light emitting component 10 is completed.

[0061] refer to Figures 9 to 12 , the second light source board 21 can be connected to the outer frame 231, and then the light guide 24 is arranged in the outer frame 231, and then the second light output element 22 is arranged inside the light guide 24. Further, the inner frame 232 is inserted into the inner side of the outer frame 231 from top to bottom, and the inner frame 232 is abutted against the step portion of the convex ring 223, and then the inner frame 232 and the outer frame 231 are connected by a threaded connector. Thus, the assembly of the second light emitting assembly 20 is completed.

[0062] Further, refer to Figures 1 to 4 , the second light emitting assembly 20 can be lifted up so that the second light emitting assembly 20 is sleeved outside the first light emitting assembly 10. Then, the first light emitting assembly 10 and the second light emitting assembly 20 are connected by the connecting member 30.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0064] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the embodiments of the present application, and the scope of the embodiments of the present application is defined by the appended claims and their equivalents.

Claims

1. A lighting device (1), characterized in that: include: A first light-emitting component (10) and a second light-emitting component (20) connected to each other; The first light-emitting assembly (10) comprises a first light source board (11) and a first light-emitting element (12), and the light emitted by the first light source board (11) can be emitted through the first light-emitting element (12); The second light-emitting component (20) comprises a second light source board (21) and a second light-emitting element (22); the second light-emitting element (22) comprises an annular light-emitting surface (221), the annular light-emitting surface (221) being located on a side of the first light-emitting element (12) away from the first light source board (11), and light emitted by the second light source board (21) can enter the second light-emitting element (22) and be emitted toward an area surrounded by the annular light-emitting surface (221) through the annular light-emitting surface (221); The annular light-emitting surface (221) comprises a first edge (2211) and a second edge (2212), wherein the first edge (2211) surrounds the outer peripheral edge of the first light-emitting element (12), and the second edge (2212) is located on a side of the first edge (2211) that is away from the first light-emitting element (12), and in a direction from the first edge (2211) toward the second edge (2212), the cross-sectional area of ​​the annular light-emitting surface (221) gradually increases.

2. The lighting device (1) according to claim 1, characterized in that The first light emitting element (12) comprises a bright light area (121) and a dark area (122), wherein the dark area (122) surrounds the bright light area (121), and when the first light emitting component (10) emits light, the brightness of the dark area (122) is less than a preset value; the first edge (2211) abuts against the first light emitting element (12), and an orthographic projection of the first edge (2211) on the first light emitting element (12) is located within the bright light area (121).

3. The lighting device (1) according to claim 1, characterized in that: The cross-sectional shape of the annular light-emitting surface (221) along its own circumferential direction is a line segment.

4. The lighting device (1) according to claim 1, characterized in that The second light emitting element (22) supports the first light emitting element (12).

5. The lighting device (1) according to claim 1, characterized in that: The first light-emitting component (10) further comprises a first lamp body (13), and the second light-emitting component (20) further comprises a second lamp body (23); the first lamp body (13) is connected to the second lamp body (23), and the second lamp body (23) comprises an outer frame (231) and an inner frame (232) which are detachably connected, the inner frame (232) being sleeved outside the first light-emitting component (10), and the outer frame (231) being sleeved outside the inner frame (232), the inner frame (232) and the outer frame (231) having a spacing area along the axial direction of the second light-emitting component (20), and the second light-emitting element (22) being clamped in the spacing area along the axial direction of the second light-emitting component (20).

6. The lighting device (1) according to claim 5, characterized in that: The second light emitting element (22) is provided with a supporting surface (222), and the supporting surface (222) supports the first light emitting element (12); a convex ring (223) is provided on the outer periphery of the supporting surface (222), and the convex ring (223) is arranged around the outer periphery of the inner frame (232), and the convex ring (223) is also in abutment with the inner frame (232) along the axial direction of the second light emitting component (20).

7. The lighting device (1) according to claim 5, characterized in that: The second light-emitting component (20) further comprises a light guide (24), the light guide (24) being arranged around the outer periphery of the second light-emitting element (22), the second light source plate (21) being opposite to one end of the light guide (24), and the light guide (24) being used for transmitting light emitted by the second light source plate (21) to the second light-emitting element (22).

8. The lighting device (1) according to claim 7, characterized in that: The second light emitting element (22) and the light guide (24) are sandwiched between the inner frame (232) and the outer frame (231) along the radial direction of the second light emitting component (20).

9. The lighting device (1) according to claim 7, characterized in that: The light guide (24) is arc-shaped, and the second light source plate (21) is also arc-shaped.

10. The lighting device (1) according to claim 5, characterized in that: The first light-emitting component (10) also includes a first light diffusing element (14); the first light emitting element (12) is sealed on the open end of the first lamp body (13), and the first light emitting element (12) is connected to the first lamp body (13); the first light diffusing element (14) is arranged on the side of the first light emitting element (12) facing the first lamp body (13); the first light diffusing element (14) is sandwiched between the first lamp body (13) and the first light emitting element (12); and the first light source panel (11) is arranged on the side of the first lamp body (13) facing the first light diffusing element (14).

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