Lamp

Abstract

The application discloses a lamp suitable for being installed on a ceiling. The lamp comprises a base, a lens and light emitting parts. The base is suitable for being connected to the ceiling and is arranged opposite to the ceiling along a first direction, and the base is provided with a first connecting structure. The lens is located on the side of the base facing the ceiling along the first direction, and a second connecting structure of the lens is detachably connected to the first connecting structure. A plurality of light emitting parts are accommodated in the accommodating space of the lens, and the lens covers each light emitting part along the first direction. The lens can refract part of the light emitted by the light emitting parts to the side of the lens facing the ceiling along the first direction, and can reflect part of the light emitted by the light emitting parts to the outer peripheral side of the lens along a second direction, so that the light intensity of the outer peripheral side of the lens along the second direction is greater than the light intensity of the side of the lens facing the ceiling along the first direction, and the second direction intersects the first direction. The lens and the light emitting parts of the scheme are convenient and fast to assemble, and can also improve the light illumination efficiency and the illumination effect.

Description

Technical Field

[0001] This invention relates to the field of ceiling light technology, and in particular to a lighting fixture. Background Technology

[0002] Ceiling lights are used for indoor lighting. Ceiling lights emit light from their lower surface, which creates a cone-shaped illumination area, resulting in glare and shadows on the ceiling above the light source, making it difficult to provide full illumination for the room. Related technologies add a back-side auxiliary light source to the lower surface illumination. This back-side auxiliary light structure directs some light onto the ceiling first, then reflects it into the room, preventing shadows on the ceiling behind the light and improving lighting performance. Specifically, the back of the ceiling light has multiple LEDs and multiple beaded lenses, with each lens corresponding to one of the LEDs. During assembly, each LED is first fixed to its designated position on the base, and then the lenses are fixed to the back of each LED based on their position, ensuring that each lens accurately guides the light emitted by each LED. However, each lens requires secondary positioning during assembly, making the overall assembly process complex. Summary of the Invention

[0003] The main objective of this invention is to provide a lighting fixture that addresses the technical problem of complex lens assembly operations.

[0004] To achieve the above objectives, embodiments of the present invention provide a lighting fixture suitable for installation on a ceiling, the lighting fixture comprising:

[0005] A base adapted to connect to the ceiling and arranged opposite to the ceiling along a first direction, the base being provided with a first connecting structure;

[0006] The lens has a second connecting structure, the lens is located on the side of the base facing the ceiling along the first direction, the second connecting structure can be detachably connected to the first connecting structure, and the lens defines an accommodating space;

[0007] A plurality of light-emitting elements are provided, each of which is housed in the receiving space. Along the first direction, a lens covers each of the light-emitting elements. The lens is configured to refract a portion of the light emitted by the light-emitting elements to the side of the lens facing the ceiling along the first direction, and to reflect another portion of the light emitted by the light-emitting elements to the outer periphery of the lens along the second direction, so that the light intensity on the outer periphery of the lens along the second direction is greater than the light intensity on the side of the lens facing the ceiling along the first direction. The second direction intersects the first direction.

[0008] In some embodiments, the first connecting structure is threadedly connected to the second connecting structure, and along the first direction, the side of the lens opposite to the first connecting structure is provided with a plurality of interconnected sawtooth structures, each of which is used to reflect and / or refract target light.

[0009] In some embodiments, the first connecting structure includes a first slot, and the second connecting structure includes a first hook, the first hook passing through and engaging with the first slot; and / or

[0010] The first connecting structure includes a second hook, and the second connecting structure includes a second slot, wherein the second hook passes through and engages with the second slot.

[0011] In some embodiments, the lens is annular, the receiving space includes a receiving groove with its opening facing the base, and each of the light-emitting elements is arranged at intervals within the receiving groove.

[0012] In some embodiments, along the thickness direction of the lens, the lens includes a first sidewall facing the light-emitting element and a second sidewall facing away from the light-emitting element; the first sidewall can refract light emitted by the light-emitting element to the second sidewall, and the second sidewall is provided with a first light guide structure and a second light guide structure, the first light guide structure can refract a portion of the light to the side of the lens facing the ceiling along the first direction, and the second light guide structure can reflect another portion of the light to the outer periphery of the lens along the second direction.

[0013] In some embodiments, the first light guide structure includes a groove, the second sidewall has a first wall segment, the first wall segment together defining the groove, the groove opening facing away from the light-emitting element, and a portion of the light can be refracted through the groove to the side of the lens facing the ceiling along the first direction.

[0014] In some embodiments, the second light guide structure includes a second wall segment located on the outer periphery of the first light guide structure, the second wall segment being connected to the first wall segment, and the lens having a first axis parallel to the first direction; wherein the angle between the second wall segment and the first axis is an acute angle, and a portion of the light rays can be reflected via the second wall segment to the outer periphery of the lens along the second direction.

[0015] In some embodiments, the second light guide structure further includes a third wall segment located on the inner periphery of the first light guide structure, the third wall segment being connected to the first wall segment, and the lens having a first axis parallel to the first direction; wherein the angle between the third wall segment and the first axis is an acute angle, and a portion of the light rays can be reflected via the third wall segment to the outer periphery of the lens along the second direction.

[0016] In some embodiments, the first light guide structure includes a first wall segment, the second light guide structure includes a second wall segment and a third wall segment, the second wall segment and the third wall segment are respectively connected to opposite ends of the first wall segment, and the lens has a first axis parallel to the first direction;

[0017] The angle between the second wall segment and the first axis is A, and the angle between the third wall segment and the first axis is B, wherein the second wall segment and the third wall segment satisfy: 0° < B < A < 90°;

[0018] Along the first direction, the height of the second wall segment is H1, and the height of the third wall segment is H2, wherein the second wall segment and the third wall segment satisfy: H1 > H2.

[0019] In some embodiments, the first sidewall includes a fourth wall segment and a fifth wall segment connected to each other, the fifth wall segment being located outside the fourth wall segment, and the fourth wall segment and the first light guide structure being arranged opposite to each other along the first direction;

[0020] The lens has a first axis parallel to the first direction, the fourth wall segment forms an angle C with the first axis, the fifth wall segment forms an angle D with the first axis, and the fourth wall segment and the fifth wall segment satisfy: 45°≤C<D<90°.

[0021] Compared with the prior art, the beneficial effects of the present invention include:

[0022] In the technical solution of this invention, the lamp includes a base, a lens, and multiple light-emitting elements. The base can be connected to the ceiling and is arranged opposite to the ceiling along a first direction. In the prior art, the back side of a ceiling light is provided with multiple LED beads and multiple beaded lenses, with each lens adapted to each LED bead in a one-to-one correspondence. During assembly, each LED bead is first fixed to a designated position on the lamp base, and then each lens is fixed to the back side of each LED bead based on its position, to ensure that each lens can accurately guide the light emitted by each LED bead. That is, the assembly process of each lens requires secondary positioning, and the overall assembly operation is complex. In this solution, the base is provided with a first connecting structure, and the lens is provided with a second connecting structure, which can be detachably connected to the first connecting structure. The lens is located on the side of the base facing the ceiling along the first direction. The lens is provided with a receiving space, and each light-emitting element is housed in the receiving space. That is, during assembly, the lens of this solution can be directly connected to the first connecting structure of the base through the second connecting structure, making the assembly operation convenient and quick. Furthermore, since multiple light-emitting components are housed within the lens's accommodating space, the arrangement position of each light-emitting component can be reversed using the lens. Moreover, the relative assembly tolerance between each light-emitting component and the lens is higher. Therefore, this solution can improve the assembly and disassembly efficiency of the lens and light-emitting components while ensuring that the lens can correctly guide the light.

[0023] Furthermore, along the first direction, the lens covers each light-emitting element. This means that a single lens can simultaneously guide light to all light-emitting elements. Compared to using multiple lenses to individually adapt to each element, this further reduces installation and disassembly difficulty and effectively improves the overall installation and disassembly efficiency of the luminaire. Moreover, the lens can refract a portion of the light emitted by the light-emitting elements to the side of the lens facing the ceiling along the first direction, and reflect another portion of the light emitted by the light-emitting elements to the outer periphery of the lens along the second direction. This ensures that the light intensity on the outer periphery of the lens along the second direction is greater than the light intensity on the side facing the ceiling along the first direction. In other words, the lens can refract a small amount of light to the side facing the ceiling along the first direction and reflect the majority of light to the outer periphery of the lens along the second direction. Therefore, this solution can significantly improve lighting efficiency and effect while ensuring that no shadows or overexposure occur on the ceiling. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1This is a schematic diagram of the structure of a lamp according to an embodiment of the present invention; wherein, the cover, top base, and outer shell are shown;

[0026] Figure 2 This is a cross-sectional view of a lamp fixture according to an embodiment of the present invention;

[0027] Figure 3 for Figure 2 A magnified view of a portion at point a; showing the lens, base, and light-emitting element, etc.

[0028] Figure 4 This is an exploded view of a lamp according to an embodiment of the present invention; wherein, the top base, lens, base and outer shell are shown;

[0029] Figure 5 for Figure 4 A partially enlarged schematic diagram at point b; showing the first slot and connecting hole of the base, etc.

[0030] Figure 6 This is a partial structural diagram of a lens according to an embodiment of the present invention; wherein, a first connecting structure, a groove, a receiving groove, and a sawtooth structure are shown;

[0031] Figure 7 This is a schematic diagram of a lens guiding light emitted by a light-emitting element in one embodiment of the present invention; wherein, the dashed line represents light, and a few light rays are guided by the lens away from the light-emitting element, while most light rays are guided by the outer periphery of the lens.

[0032] Figure 8 This is a schematic diagram of the cross-section of a lens according to an embodiment of the present invention.

[0033] Explanation of icon numbers:

[0034] 10 light fixtures;

[0035] Base 100; First connecting structure 110; First slot 111; Connecting hole 112;

[0036] Lens 200;

[0037] Second connecting structure 210; First hook 211; Connecting post 212;

[0038] 220; 221;

[0039] 230 serrated structure;

[0040] First side wall 240; Fourth wall segment 241; Fifth wall segment 242; Eighth wall segment 243;

[0041] Second sidewall 250; First light guide structure 251; Groove 2511; Second light guide structure 252; First wall segment 253; Second wall segment 254; Third wall segment 255; Sixth wall segment 256; Seventh wall segment 257;

[0042] First axis 260;

[0043] Light-emitting component 300;

[0044] 400mm for the cover;

[0045] Top seat 500;

[0046] Casing 600;

[0047] First direction X; second direction Y.

[0048] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0050] This invention provides a lamp 10, which is convenient and quick to assemble. It should be noted that the lamp 10 can be a ceiling light, pendant light, or wall light, etc. This embodiment uses a ceiling light as an example for explanation. The following refers to... Figures 1 to 8 The present application will now introduce a lamp 10 according to an embodiment of the present application. Specifically, the lamp 10 includes a base 100, a lens 200, and a light-emitting element 300. It can be understood that the plurality of light-emitting elements 300 of the lamp 10 according to the present application embodiment can be used for auxiliary lighting, and the lamp 10 can also be provided with a main lighting element for illumination.

[0051] Reference Figures 1 to 5 The base 100 is used to support the lens 200 and each light-emitting element 300. The base 100 can be connected to the ceiling. To facilitate the description and understanding of the relative arrangement of the base 100 and the ceiling, a first direction X is defined. The base 100 and the ceiling are arranged relative to each other along the first direction X, as shown in the reference. Figure 4 The orientation refers to the vertical arrangement of the base 100 and the ceiling. The base 100 is provided with a first connecting structure 110, which is used to connect the lens 200.

[0052] Reference Figures 6 to 8The lens 200 is used to guide the direction of light emitted by the light-emitting element 300. The lens 200 is located on the side of the base 100 facing the ceiling along the first direction X, as shown in the reference... Figure 4 The lens 200 can be positioned on the upper side of the base 100. The lens 200 has a second connecting structure 210, which may differ from the first connecting structure 110. The second connecting structure 210 can be detachably connected to the first connecting structure 110, thus enabling the lens 200 to be attached to and detached from the base 100. The lens 200 also defines a receiving space 220, which can accommodate multiple light-emitting elements 300. The specific structure of the receiving space 220 can be determined according to the actual situation.

[0053] Reference Figure 3 Along the first direction X, lens 200 covers each light-emitting element 300. For ease of description and understanding, the lamp body is defined as having a projection plane parallel to the ceiling wall. Vertically, lens 200 can form a first orthographic projection on the projection plane, which can be a closed geometric figure. Vertically, multiple light-emitting elements 300 can form multiple second orthographic projections on the projection plane, each of which can be a closed geometric figure. Each second orthographic projection falls within the first orthographic projection, and the sum of the areas of all second orthographic projections is less than the area of ​​the first orthographic projection.

[0054] Lens 200 can refract a portion of the light emitted from the light-emitting element 300 to the side of lens 200 facing the ceiling along the first direction X, and can reflect another portion of the light emitted from the light-emitting element 300 to the outer periphery of lens 200 along the second direction Y, so that the light intensity on the outer periphery of lens 200 along the second direction Y is greater than the light intensity on the side of lens 200 facing the ceiling along the first direction X. In other words, lens 200 can refract a small portion of the light emitted from the light-emitting element 300 to the side of lens 200 away from base 100 along the first direction X, as shown in the figure. Figure 3 The orientation refers to the ability of lens 200 to refract a small portion of the light emitted by light-emitting element 300 to the vertical side of lens 200 facing the ceiling. Lens 200 can also reflect a large portion of the light emitted by light-emitting element 300 to the periphery of lens 200 along the second direction Y. The second direction Y intersects the first direction X. In some embodiments, the second direction Y may be perpendicular to the first direction X. In other embodiments, the second direction Y may be at a non-perpendicular angle to the first direction X. This application embodiment is illustrated using the example of the second direction Y being perpendicular to the first direction X, referring to... Figure 3 Orientation, that is, the lens 200 can reflect most of the light emitted by the light-emitting element 300 to the circumference of the lens 200 along the horizontal direction.

[0055] In the technical solution of this invention, the lamp 10 includes a base 100, a lens 200, and multiple light-emitting elements 300. In the prior art, the back side of a ceiling light is provided with multiple LEDs and multiple beaded lenses, with each lens corresponding to one of the LEDs. During assembly, each LED is first fixed to a designated position on the lamp base, and then each lens is fixed to the back side of each LED based on its position, ensuring that each lens can accurately guide the light emitted by each LED. This means that the assembly process for each lens requires secondary positioning, making the overall assembly operation complex. In this solution, the base 100 is provided with a first connecting structure 110, and the lens 200 is provided with a second connecting structure 210, which can be detachably connected to the first connecting structure 110. The lens 200 and the base 100 are arranged opposite each other along a first direction X and are located on the back side of the base 100. The lens 200 is provided with a receiving space 220, and each light-emitting element 300 is housed within the receiving space 220. That is, during assembly, the lens 200 of this solution can be directly connected to the first connecting structure 110 of the base 100 via the second connecting structure 210, making the assembly operation convenient and quick. Furthermore, since multiple light-emitting elements 300 are housed within the receiving space 220 of the lens 200, the arrangement position of each light-emitting element 300 can be reversed using the lens 200, and the relative assembly tolerance between each light-emitting element 300 and the lens 200 is higher. Therefore, this solution can improve the assembly and disassembly efficiency of the lens 200 and the light-emitting elements 300 while ensuring that the lens 200 can correctly guide the light.

[0056] Furthermore, along the first direction X, the lens 200 covers each light-emitting element 300. This means that this solution can simultaneously guide light from all light-emitting elements 300 using a single lens 200. Compared to using multiple lenses to individually adapt to each light-emitting element, this further reduces the difficulty of installation and disassembly, effectively improving the overall installation and disassembly efficiency of the lamp 10. Furthermore, the lens 200 can refract a portion of the light emitted by the light-emitting element 300 to the side of the lens 200 facing the ceiling along the first direction X, and can reflect another portion of the light emitted by the light-emitting element 300 to the outer periphery of the lens 200 along the second direction Y. This ensures that the light intensity on the outer periphery of the lens 200 along the second direction Y is greater than the light intensity on the side of the lens 200 facing the ceiling along the first direction X. In other words, the lens 200 can refract a small portion of the light to the side of the lens 200 facing the ceiling along the first direction X, and reflect the majority of the light to the outer periphery of the lens 200 along the second direction Y. Therefore, this solution can significantly improve the lighting efficiency and effect while ensuring that no shadows or overexposure are generated on the ceiling.

[0057] Reference Figures 3 to 6In some embodiments, the first connecting structure 110 is threadedly connected to the second connecting structure 210. Specifically, the first connecting structure 110 has a connecting hole 112, and the second connecting structure 210 has a threaded hole. Fasteners can pass through the connecting hole 112 and be threaded into the threaded hole to connect the lens 200 to the base 100, thus ensuring the stability of the connection between the lens 200 and the base 100 and the ease of assembly and disassembly. In other embodiments, the second connecting structure 210 may be provided with a connecting post 212, which has a threaded hole. The connecting post 212 can support the lens 200 at the target height and ensure the structural strength of the lens 200.

[0058] In some embodiments, along the first direction X, reference Figure 7 In terms of orientation, i.e., along the vertical direction, the side of the lens 200 opposite to the first connecting structure 110 has multiple interconnected sawtooth structures 230. The specific structure of each sawtooth structure 230 can be the same or different. Specifically, the sawtooth structure 230 can be triangular, trapezoidal, or arc-shaped, etc. In this embodiment, a triangular sawtooth structure 230 is used as an example for explanation. Each sawtooth structure 230 is used to reflect and / or refract target light. It should be noted that the target light can be light that has passed through the sawtooth structure 230. Therefore, after the lens 200 and the base 100 are assembled, it is difficult for external personnel to see the fasteners (screws or bolts, etc.) inside the sawtooth structure 230 of the lens 200, which can improve the overall texture and aesthetics of the lamp 10. In other embodiments, because the sawtooth structure 230 can reflect and refract light, it can further suppress the appearance of shadows or overexposure on the ceiling above the lamp 10, thereby improving the lighting efficiency and illumination effect.

[0059] Reference Figures 3 to 8The specific configurations of the first connecting structure 110 and the second connecting structure 210 are described below. In some embodiments, the first connecting structure 110 includes a first slot 111, and the second connecting structure 210 includes a first hook 211. The structure of the first slot 111 is adaptable to the arrangement of the first hook 211. The first hook 211 can pass through and engage with the first slot 111. It is understood that the first slot 111 can be single or multiple. This embodiment of the application uses the example of multiple first slots 111 and multiple first hooks 211 for illustration. The number of first hooks 211 can be the same as the number of first slots 111. In other embodiments, the first connecting structure 110 includes a second hook, and the second connecting structure 210 includes a second slot. The structure of the second slot is adaptable to the arrangement of the second hook. The second hook can pass through and engage with the second slot. It is understood that the second slot can be single or multiple. This embodiment of the application uses the example of multiple second slots and multiple second hooks for illustration. The number of second hooks can be the same as the number of second slots. The lens 200 and base 100 of this solution are easy and quick to install and remove, and the connection between the two can be guaranteed to be stable.

[0060] Reference Figure 4 In some embodiments, the lens 200 is annular. Specifically, the lens 200 body can be circular, square, or other closed ring shapes. This embodiment uses a circular lens 200 body as an example. The receiving space 220 includes a receiving groove 221, with the opening of the groove 221 facing the base 100. Light-emitting elements 300 are spaced apart within the receiving groove 221. Specifically, multiple light-emitting elements 300 can be arranged at uniform intervals within the receiving groove 221 to improve illumination uniformity. Multiple light-emitting elements 300 can also be arranged at non-uniform intervals within the receiving groove 221. For example, the light-emitting elements 300 can be densely arranged in directions requiring focused lighting (such as the head of the bed or the desk direction) and sparsely arranged in secondary directions (such as the passageway direction). This non-uniform distribution, combined with the annular lens 200, can achieve directional enhanced lighting effects to meet personalized lighting needs. In other embodiments, the lens 200 body can be configured as a non-closed C-shaped ring structure, i.e., the annular body has an opening. This solution can be used in scenarios where it is necessary to avoid other structures of the luminaire 10 (such as the central hanger or mounting base), or to form a specific asymmetrical light pattern. The light-emitting elements 300 are also arranged at intervals within the C-shaped receiving groove 221, with no light-emitting elements 300 at the break point, thereby forming a specific light spot shape on the illumination surface. The specific shape of the lens 200 can be determined according to the actual situation; in this embodiment, a circular lens 200 is used as an example for illustration.

[0061] The receiving groove 221 of this solution can not only position each light-emitting element 300, but also improve the fault tolerance of the relative assembly of the lens 200 and the light-emitting element 300. In addition, the groove wall of the receiving groove 221 can also block light, preventing the light emitted by each light-emitting element 300 from interfering with each other without being processed by the lens 200, and preventing the light from being emitted to a non-target position and wasting light.

[0062] Reference Figures 6 to 8 In some embodiments, along the thickness direction of the lens 200 body, referring to Figure 8 In terms of orientation, specifically along the vertical direction, the lens 200 body includes a first sidewall 240 and a second sidewall 250 arranged opposite to each other. The first sidewall 240 is the side of the lens 200 body facing the light-emitting element 300, and the second sidewall 250 is the side of the lens 200 body facing away from the light-emitting element 300. (Refer to...) Figure 8 The orientation, that is, the lower wall surface of the lens 200 body is the first side wall surface 240, and the upper wall surface of the lens 200 body is the second side wall surface 250. The second side wall surface 250 is provided with a first light guide structure 251 and a second light guide structure 252. Both the first light guide structure 251 and the second light guide structure 252 are used to guide the output direction of light, but the structures of the first light guide structure 251 and the second light guide structure 252 are different.

[0063] The following describes the specific process by which lens 200 guides light rays. (Refer to...) Figure 7 The first sidewall 240 can refract the light emitted by the light-emitting element 300 to the second sidewall 250, thereby facilitating subsequent directional guidance of the light. The first light-guiding structure 251 of the second sidewall 250 can refract a small amount of light to the side of the lens 200 opposite to the light-emitting element 300 along the first direction X, as shown in the figure. Figure 7 The orientation, that is, the first light guide structure 251 can refract a small amount of light to the upper side of the lens 200 body along the vertical direction towards the ceiling. The second light guide structure 252 can reflect the majority of light to the periphery of the lens 200 along the second direction Y, as shown in the reference. Figure 7 The orientation, i.e., the second light guide structure 252, can reflect most of the light to the outer periphery of the lens 200 body along the horizontal direction. It can be understood that the amount of light guided by the first light guide structure 251 and the second light guide structure 252 can be judged by the brightness of their respective areas. In this solution, the first light guide structure 251 can avoid shadows and overexposure on the ceiling above the luminaire 10. The second light guide structure 252 can effectively improve the light illumination efficiency and effect.

[0064] Reference Figures 6 to 8The specific configuration of the first light guide structure 251 is described below. In some embodiments, the first light guide structure 251 includes a groove 2511. The second sidewall 250 has a first wall segment 253, which together define the groove 2511. The opening of the groove 2511 faces the side away from the light-emitting element 300, as shown in the figure. Figure 7 Orientation: The opening of the groove 2511 faces upwards. A small amount of light can be refracted through the groove 2511 to the side of the lens 200 facing away from the base 100 along the first direction X, as shown in the reference. Figure 7 In terms of orientation, a small amount of light can be refracted through the groove 2511 to the side of the lens 200 facing the ceiling vertically. In other embodiments, the first light guide structure 251 includes a frustum structure protruding from the second sidewall 250. This frustum structure has multiple light-guiding bevels, so that after entering the frustum structure, a small amount of light undergoes multiple refractions and reflections before exiting the lens 200 on the side facing away from the base 100 along the first direction X. This application embodiment uses the first light guide structure 251 including the groove 2511 as an example for illustration.

[0065] It is understandable that light will refract when propagating at the interface of media with different refractive indices. When the light emitted by the light-emitting element 300 is refracted through the first side wall 240 and enters the lens 200 body, it will reach the second side wall 250. On a smooth wall without the first light guide structure 251, the light will either exit directly according to Snell's law or undergo total internal reflection. This solution, by setting the groove 2511, can change the local curvature and normal direction of the lens 200, allowing a small amount of soft light to refract across the lens 200 body and reach the ceiling on the side away from the light-emitting element 300, effectively avoiding shadows and overexposure on the ceiling above the lamp 10 and improving the lighting effect. Compared with complex electronic dimming solutions or solutions that add independent light-shielding elements, this solution can effectively simplify the assembly process of the lamp 10 and reduce material costs.

[0066] Reference Figures 6 to 8 In some embodiments, the second light guide structure 252 includes a second wall segment 254, which is located on the outer periphery of the first light guide structure 251, as shown in the figure. Figure 8In terms of orientation, the second wall segment 254 is located to the right of the first light guide structure 251. The second wall segment 254 connects to the first wall segment 253. The lens 200 has a first axis 260 parallel to the first direction X. The angle between the second wall segment 254 and the first axis 260 is acute, allowing most light rays to be reflected by the second wall segment 254 to the outer periphery of the lens 200 along the second direction Y. In other embodiments, the second light guide structure 252 includes multiple reflective surface segments arranged in a stepped manner, each forming an acute angle with the first axis 260, but with different tilt angles. For example, the reflective surface segments near the first light guide structure 251 have smaller tilt angles, used to reflect light near the central area at a large angle to the farther outer periphery, while the reflective surface segments farther from the first light guide structure 251 have larger tilt angles, used to reflect edge light at a small angle to the closer outer periphery. This stepped design allows for a more refined light pattern distribution, adapting to specific lighting scenarios. In other embodiments, the second wall segment 254 can be smoothly connected to the first wall segment 253 to form a continuously changing curved surface, which can reduce the scattering loss of light at the abrupt change in structure and improve optical efficiency.

[0067] In this design, the second wall segment 254 is set at an acute angle to the first axis 260, meaning the second wall segment 254 is inclined relative to the first axis 260. When most light propagates from the first side wall 240 to the second wall segment 254, because the light travels from a denser medium (lens 200) to a less dense medium (air), and the angle of incidence is designed to be greater than or equal to the critical angle for total internal reflection, total internal reflection can occur at the interface of the second wall segment 254, causing the reflected light to exit towards the outer periphery of the lens 200. Therefore, this design can reflect a portion of the light that might otherwise be wasted towards the ceiling to the outer periphery, directing the light to the areas in the room that require the most illumination (the perimeter and lower space of the room), significantly improving lighting efficiency. Furthermore, the second wall segment 254 can work in conjunction with the first light guide structure 251 to ensure uniform and efficient light output from the luminaire 10.

[0068] Reference Figures 6 to 8 In some embodiments, the second light guide structure 252 includes a third wall segment 255, which is located on the inner periphery side of the first light guide structure 251, as shown in the figure. Figure 8In terms of orientation, the third wall segment 255 is located to the left of the first light guide structure 251. The third wall segment 255 connects to the first wall segment 253. The lens 200 has a first axis 260 parallel to the first direction X. The angle between the third wall segment 255 and the first axis 260 is an acute angle, and most light rays can be reflected by the third wall segment 255 to the outer periphery of the lens 200 along the second direction Y. In some embodiments, the third wall segment 255 includes multiple reflective surface segments arranged in a stepped manner, each reflective surface segment is set at an acute angle to the first axis 260, but the tilt angle of each segment is different, thus forming a multi-level reflection structure. This design can achieve a more refined light pattern distribution and adapt to specific lighting scenarios.

[0069] In this design, the third wall segment 255 is set at an acute angle to the first axis 260, meaning the third wall segment 255 is inclined relative to the first axis 260. When most light rays propagate from the first side wall 240 to the third wall segment 255, because the light rays travel from a denser medium (lens 200) to a less dense medium (air), and the incident angle is designed to be greater than or equal to the critical angle for total internal reflection, total internal reflection can occur at the interface of the third wall segment 255, causing the reflected light rays to exit towards the outer periphery of the lens 200. Therefore, this design can reflect a portion of the light rays that might otherwise be wasted towards the ceiling to the outer periphery, thus directing the light rays to the areas in the room that require the most illumination (the perimeter and lower space of the room), significantly improving lighting efficiency. Furthermore, the third wall segment 255 can work in conjunction with the first light guide structure 251 to ensure uniform and efficient light output from the luminaire 10. Moreover, by adding the third wall segment 255, this design enables almost all light rays from the center to the edge of the light-emitting element 300 to be effectively guided when they reach the second side wall 250, achieving omnidirectional control of the emitted light rays.

[0070] Reference Figures 6 to 8 In some embodiments, the first light guide structure 251 includes a first wall segment 253, and the second light guide structure 252 includes a second wall segment 254 and a third wall segment 255. The second wall segment 254 and the third wall segment 255 are respectively connected to opposite ends of the first wall segment 253. It can be understood that the second wall segment 254 can be directly or indirectly connected to the first wall segment 253, and the third wall segment 255 can be directly or indirectly connected to the first wall segment 253, depending on the actual situation. The lens 200 has a first axis 260 parallel to the first direction X.

[0071] Reference Figure 8In some embodiments, the angle between the second wall segment 254 and the first axis 260 is A, and the angle between the third wall segment 255 and the first axis 260 is B, wherein the second wall segment 254 and the third wall segment 255 satisfy: 0° < B < A < 90°. In other words, the tilt angle of the third wall segment 255 relative to the first axis 260 is smaller than the tilt angle of the second wall segment 254 relative to the first axis 260, that is, the reflecting surface on the inner peripheral side of the lens 200 is steeper than the reflecting surface on the outer peripheral side. Therefore, the light from the inner peripheral side of this solution can be reflected to the relatively closer outer peripheral side, and the light from the outer peripheral side can be reflected to the relatively farther outer peripheral side. The two can form a complementary superposition effect in space, forming a superimposed light field with uniform intensity in terms of illumination. Furthermore, the aforementioned tilt angle of the second wall segment 254 and the third wall segment 255 in this solution can ensure that all light is directed to the effective illumination area, preventing shadows from appearing on the ceiling above the lamp 10 while avoiding overexposure and improving the uniformity of illumination.

[0072] It should be noted that, in some embodiments, along the first direction X, referring to Figure 8 In terms of orientation, specifically along the vertical direction, the height of the second wall segment 254 is H1, and the height of the third wall segment 255 is H2. The second wall segment 254 and the third wall segment 255 satisfy the condition: H1 > H2. In other words, the third wall segment 255 has a larger reflective area than the second wall segment 254. This design can reflect more light to the outer periphery of the luminaire 10, effectively avoiding overexposure, improving lighting efficiency, and also accommodating the mold-forming process of the lens 200, facilitating demolding and reducing stress concentration.

[0073] Reference Figures 6 to 8 In some embodiments, the first sidewall 240 includes a fourth wall segment 241 and a fifth wall segment 242. The fourth wall segment 241 and the fifth wall segment 242 are connected to each other. The fifth wall segment 242 is located outside the fourth wall segment 241, as shown below. Figure 8 In terms of orientation, the fifth wall segment 242 is located to the right of the fourth wall segment 241. The fourth wall segment 241 and the first light guide structure 251 are arranged opposite each other along the first direction X, as shown in the reference. Figure 8 The orientation is such that the fourth wall segment 241 and the first light guide structure 251 are arranged opposite each other in the vertical direction.

[0074] Reference Figure 8Lens 200 has a first axis 260 parallel to the first direction X. The angle between the fourth wall segment 241 and the first axis 260 is C, and the angle between the fifth wall segment 242 and the first axis 260 is D. The fourth wall segment 241 and the fifth wall segment 242 satisfy: 45°≤C<D<90°. The above-mentioned arrangement of the fourth wall segment 241 and the fifth wall segment 242 in this design ensures that the incident light has a sufficient deflection angle, allowing it to be directed at a larger angle towards the outer peripheral reflection area of ​​the second side wall 250, thus guaranteeing the subsequent light reflection effect.

[0075] Reference Figure 6 In some embodiments, the second sidewall 250 further includes a sixth wall segment 256, which can be connected to the outer side of the second wall segment 254 opposite to the first light guide structure 251. The sixth wall segment 256 can be inclined relative to the first axis 260. Specifically, the angle between the sixth wall segment 256 and the first axis 260 can be an acute angle. It should be noted that the sixth wall segment 256 and the second wall segment 254 can jointly define a protrusion to effectively guide the light. Since the lower side of the lamp 10 can be provided with a main lighting element, the sixth wall segment 256 of this solution can guide part of the light to be emitted obliquely towards the ceiling, thereby increasing the brightness on one side of the ceiling and further improving the uniformity of illumination.

[0076] Reference Figure 7 In other embodiments, the second sidewall 250 further includes a seventh wall segment 257, which can be connected to the inner side of the third wall segment 255 facing away from the first light guide structure 251. The seventh wall segment 257 can be inclined relative to the first axis 260. Specifically, the angle between the seventh wall segment 257 and the first axis 260 can be an acute angle. The seventh wall segment 257 can reflect light that could be refracted to the central area of ​​the luminaire 10 along the first direction X toward the ceiling to the outer periphery of the luminaire 10 along the second direction Y. In the prior art, because the ceiling light is close to the ceiling, the central area of ​​the shadow formed by the ceiling light on the ceiling cannot be seen from below. The seventh wall section 257 of this solution can intercept the light emitted towards the center area of ​​the lamp 10 and direct the light to the outer periphery of the lamp 10. In this way, it will not affect the uniformity of the light on the ceiling above the lamp 10 (although the light intensity on the outer periphery of the lamp 10 is actually greater than the intensity in the center area of ​​the ceiling where the lamp 10 is located, the light is uniform when people look up from below in real scenes because of the lamp itself). At the same time, it can maximize the use of light for external lighting, thus greatly improving the lighting effect.

[0077] Reference Figure 7In other embodiments, the first sidewall 240 further includes an eighth wall segment 243, which is connected to the outer side of the fifth wall segment 242 away from the fourth wall segment 241. The angle between the eighth wall segment 243 and the first axis 260 can be an acute angle. The eighth wall segment 243 can guide light to the second sidewall 250 for subsequent reflection processing.

[0078] Reference Figures 1 to 5 In some embodiments, the luminaire 10 includes a cover 400, which can enclose the lens 200, base 100, and light-emitting element 300, etc., to prevent dust and foreign objects from entering the interior of the luminaire 10. In other embodiments, the luminaire 10 includes a top mount 500, which can be connected to the ceiling to support the base 100 and lens 200, etc. In still other embodiments, the luminaire 10 includes a housing 600, which can be fitted with the base 100 and lens 200, etc.

[0079] It should be noted that if directional indications (such as up, down, left, right, front, back, etc.) are involved in the embodiments of the present invention, these directional indications are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly. When a direction reference is introduced in a specific embodiment, unless the direction is specifically limited to unidirectional, the direction can be unidirectional or bidirectional (two parallel and opposite directions). Whether it is unidirectional or bidirectional depends on what those skilled in the art can achieve. When the direction reference is bidirectional, it should be considered that two parallel and different embodiments have been introduced simultaneously.

[0080] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0081] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A light fixture suitable for installation on a ceiling, characterized in that, The lighting fixture includes: A base adapted to connect to the ceiling and arranged opposite to the ceiling along a first direction, the base being provided with a first connecting structure; The lens has a second connecting structure, the lens is located on the side of the base facing the ceiling along the first direction, the second connecting structure can be detachably connected to the first connecting structure, and the lens defines an accommodating space; A plurality of light-emitting elements are provided, each of which is housed in the receiving space. Along the first direction, a lens covers each of the light-emitting elements. The lens is configured to refract a portion of the light emitted by the light-emitting elements to the side of the lens facing the ceiling along the first direction, and to reflect another portion of the light emitted by the light-emitting elements to the outer periphery of the lens along the second direction, so that the light intensity on the outer periphery of the lens along the second direction is greater than the light intensity on the side of the lens facing the ceiling along the first direction. The second direction intersects the first direction. Along the thickness direction of the lens, the lens includes a first sidewall facing the light-emitting element and a second sidewall facing away from the light-emitting element; the first sidewall can refract the light emitted by the light-emitting element to the second sidewall, and the second sidewall is provided with a first light guide structure and a second light guide structure. The first light guide structure can refract a portion of the light to the side of the lens facing the ceiling along the first direction, and the second light guide structure can reflect another portion of the light to the outer periphery of the lens along the second direction.

2. The lamp as described in claim 1, characterized in that, The first connecting structure is threaded to the second connecting structure. Along the first direction, the lens has a plurality of interconnected sawtooth structures on the side opposite to the first connecting structure. Each sawtooth structure is used to reflect and / or refract target light.

3. The lamp as described in claim 1, characterized in that, The first connecting structure includes a first slot, and the second connecting structure includes a first hook, the first hook passing through and engaging with the first slot; and / or, The first connecting structure includes a second hook, and the second connecting structure includes a second slot, wherein the second hook passes through and engages with the second slot.

4. The lamp as described in claim 1, characterized in that, The lens is annular, and the receiving space includes a receiving groove with its opening facing the base, and each of the light-emitting elements is arranged at intervals within the receiving groove.

5. The lamp as described in claim 4, characterized in that, The first light guide structure includes a groove, and the second sidewall has a first wall segment. The first wall segment together defines the groove. The groove opening faces away from the light-emitting element, and part of the light can be refracted through the groove to the side of the lens facing the ceiling along the first direction.

6. The lamp as described in claim 5, characterized in that, The second light guide structure includes a second wall segment located on the outer periphery of the first light guide structure, the second wall segment being connected to the first wall segment, and the lens having a first axis parallel to the first direction; wherein, the angle between the second wall segment and the first axis is an acute angle, and a portion of the light rays can be reflected through the second wall segment to the outer periphery of the lens along the second direction.

7. The lamp as described in claim 5, characterized in that, The second light guide structure further includes a third wall segment located on the inner periphery of the first light guide structure, the third wall segment being connected to the first wall segment, and the lens having a first axis parallel to the first direction; wherein, the angle between the third wall segment and the first axis is an acute angle, and a portion of the light rays can be reflected through the third wall segment to the outer periphery of the lens along the second direction.

8. The lamp as described in claim 1, characterized in that, The first light guide structure includes a first wall segment, the second light guide structure includes a second wall segment and a third wall segment, the second wall segment and the third wall segment are respectively connected to the opposite ends of the first wall segment, and the lens has a first axis parallel to the first direction; The angle between the second wall segment and the first axis is A, and the angle between the third wall segment and the first axis is B, wherein the second wall segment and the third wall segment satisfy: 0° < B < A < 90°; Along the first direction, the height of the second wall segment is H1, and the height of the third wall segment is H2, wherein the second wall segment and the third wall segment satisfy: H1 > H2.

9. The lamp as described in claim 1, characterized in that, The first sidewall includes a fourth wall segment and a fifth wall segment connected to each other, the fifth wall segment being located outside the fourth wall segment, and the fourth wall segment and the first light guide structure being arranged opposite to each other along the first direction; The lens has a first axis parallel to the first direction, the fourth wall segment forms an angle C with the first axis, the fifth wall segment forms an angle D with the first axis, and the fourth wall segment and the fifth wall segment satisfy: 45°≤C<D<90°.

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