A line light

Abstract

The utility model discloses a line lamp, including the lamp shell, install the lamp board and the face shield subassembly of covering the lamp board in the lamp shell inside, the face shield subassembly includes the inner ring cover and the outer ring cover, the inner ring cover sets up the light path front of the lamp board and its inside surface to the lamp board is provided with the light diffusion structure for light diffusion, the outer ring cover is coaxial with the inner ring cover and is formed annular peripheral light -emitting area with between the inner ring cover, wherein, the light that emits from the lamp board is scattered to the outer ring cover after the transmission of the light diffusion structure of the inner ring cover, and from the annular peripheral light -emitting area emission, to expand the light emitting angle. The problem that the light emitting angle is small, and light uniformity is poor of the conventional line lamp exists has been solved.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a linear light. Background Technology

[0002] Traditional linear lights typically employ a single shade structure, with the light emitted by the LEDs passing directly through the shade. While frosting the shade can somewhat blur the point light source, the light emission direction remains primarily concentrated in the front, resulting in a limited beam angle (usually between 120° and 140°). This leads to significantly reduced brightness on the sides of the light fixture, creating a distinct light-dark boundary and failing to meet the demands of modern decorative lighting for a uniform, wide-angle light emission effect where the light source is not visible. Another existing technology uses complex multi-component optical lenses (such as light guides and reflectors) to guide the light, attempting to direct it to the sides. However, this approach suffers from structural complexity, high cost, inconvenient assembly, and difficulty in controlling the size of the lamp body. Therefore, there is an urgent need in the field for a lighting device solution that is simple in structure, cost-effective, and can effectively achieve an ultra-wide beam angle. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the present invention provides a linear light to solve the problems of small light-emitting angle and poor uniformity of conventional linear lights.

[0004] This utility model is achieved using the following technical solution: A linear light includes a lamp housing, a lamp plate installed inside the lamp housing, and a cover assembly covering the lamp plate. The cover assembly includes an inner ring cover and an outer ring cover. The inner ring cover is disposed in front of the light path of the lamp plate, and its inner surface facing the lamp plate has a light diffusion structure for light diffusion. The outer ring cover is coaxially disposed with the inner ring cover and forms an annular peripheral light-emitting area between the outer ring cover and the inner ring cover. Light emitted from the lamp plate is transmitted through the light diffusion structure of the inner ring cover, scattered to the outer ring cover, and emitted from the annular peripheral light-emitting area to expand the light emission angle.

[0005] Furthermore, the light diffusion structure is a serrated microstructure, and the serrated microstructure is continuously distributed on the entire inner surface of the inner ring cover.

[0006] Furthermore, the serrated microstructure is composed of alternating peaks and valleys.

[0007] Furthermore, the mask assembly has a semi-circular ring structure.

[0008] Furthermore, the inner ring cover and / or the outer ring cover are made of milky white acrylic material.

[0009] Furthermore, the lamp housing is provided with a first slot, and the mask assembly is provided with a buckle portion that engages with the first slot.

[0010] Furthermore, the light panel includes a panel body and multiple sets of light-emitting units disposed on the panel body. Each set of light-emitting units includes a first LED bead located in a first row and a second LED bead located in a second row. In the length direction of the panel body, the multiple first LED beads in the first row and the multiple second LED beads in the second row are arranged alternately.

[0011] Furthermore, the first row of multiple first LED beads is arranged at equal intervals, the second row of multiple second LED beads is arranged at equal intervals, and the projection of the first LED bead is directly opposite the center position between two adjacent second LED beads.

[0012] Furthermore, multiple light-emitting units are arranged along the length of the plate to form multiple light-emitting unit groups, and the light-emitting unit groups are arranged in a linear array.

[0013] Furthermore, the lamp housing is provided with a second slot for engaging the plate.

[0014] Compared with the prior art, the beneficial effects of this utility model include at least the following: This invention utilizes an outer ring cover as the primary light-emitting surface, successfully extending the effective light emission range from the front area of ​​a traditional lampshade to nearly or exceeding 180°, achieving a soft light effect where the light source is not visible. Simultaneously, the light diffusion structure of the inner ring cover prevents bright spots from point light sources, while the progressive light emission structure of the double ring covers ensures highly uniform brightness across the entire emitting surface, resulting in soft light and improved visual comfort. It features uniform light emission and no obvious bright spots. Through the optical path design of the inner and outer ring covers, and the coordination of the light diffusion structure, a direct point light source is transformed into a uniform surface light source, and the outer ring cover expands the light emission angle while ensuring uniformity and softness of the emitted light. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a linear light according to an embodiment of the present utility model; Figure 2 This is an exploded view of a linear light according to an embodiment of this utility model; Figure 3 This is one of the cross-sectional views of the linear light according to an embodiment of this utility model; Figure 4 This is an enlarged schematic diagram of the light diffusion structure according to an embodiment of the present invention; Figure 5 This is a second cross-sectional view of the linear light according to an embodiment of this utility model; In the diagram: 1. Lamp housing; 11. First slot; 12. Second slot; 2. Lamp board; 21. Board body; 22. First LED bead; 23. Second LED bead; 3. Mask assembly; 31. Inner ring cover; 32. Outer ring cover; 33. Light diffusion structure; 331. Peak; 332. Valley; 34. Annular peripheral light-emitting area; 35. Buckle part; 4. End cap; 5. Cable. Detailed Implementation

[0016] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0017] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0018] like Figures 1 to 5 As shown, the present invention provides a linear light, including a lamp housing 1, a lamp plate 2 installed inside the lamp housing 1, and a mask assembly 3 covering the lamp plate 2. The mask assembly 3 includes an inner ring cover 31 and an outer ring cover 32. The inner ring cover 31 is disposed in front of the light path of the lamp plate 2, and its inner surface facing the lamp plate 2 is provided with a light diffusion structure 33 for light diffusion. The outer ring cover 32 is coaxially disposed with the inner ring cover 31, and forms an annular peripheral light-emitting area 34 between the outer ring cover 32 and the inner ring cover 31. The light emitted from the lamp plate 2 is transmitted through the light diffusion structure 33 of the inner ring cover 31, scattered to the outer ring cover 32, and emitted from the annular peripheral light-emitting area 34 to expand the light emission angle.

[0019] In this embodiment, the light emitted from the lamp panel 2 first directly illuminates the inner surface of the inner ring cover 31 facing the light source. The light diffusion structure 33 (such as diffusion patterns) on the inner surface of the inner ring cover 31 scatters the incident light, disrupting the light path and freeing it from its original emission direction. This is the crucial first step in achieving wide-angle light emission. After being diffused by the inner ring cover 31, a large portion of the light is redirected and scattered to the inner wall of the outer ring cover 32. This "illuminates" the outer ring cover 32 itself, transforming it from a structural component into a light-emitting surface. Finally, the light exits from the entire surface of the uniformly illuminated inner ring cover 31 and outer ring cover 32 (especially the outer ring cover 32). Since the outer ring cover 32 is located at a more peripheral position, the light emitted by it naturally covers the space to the side and even at a larger lateral angle.

[0020] This invention utilizes the outer ring cover 32 as the main light-emitting surface, successfully expanding the effective light emission range from the front area of ​​a traditional lampshade (e.g., 120°) to nearly or over 180°, even reaching 270° or wider, achieving a soft light effect where the light source is not visible. Simultaneously, the light diffusion structure 33 of the inner ring cover 31 avoids bright spots formed by point light sources, while the progressive light emission structure of the double ring covers ensures very uniform brightness across the entire light-emitting surface, resulting in soft light and improved visual comfort. It features uniform light emission and no obvious light spots. Through the optical path design of the inner ring cover 31 and the outer ring cover 32, and the cooperation of the light diffusion structure 33, a direct point light source is transformed into a uniform surface light source. The outer ring cover 32 expands the light emission angle while ensuring uniformity and softness of the emitted light.

[0021] In a preferred embodiment, the light diffusion structure 33 is a serrated microstructure, and the serrated microstructure is continuously distributed on the entire inner surface of the inner ring cover 31.

[0022] Specifically, the serrated microstructure is composed of alternating peaks 331 and valleys 332.

[0023] refer to Figure 3 and Figure 4 This invention utilizes a serrated microstructure to controllably scatter and redistribute light. Specifically, in a traditional ring with a smooth inner wall, a large portion of the light (especially light incident at large angles) undergoes total internal reflection within the inner wall, remaining within the ring and unable to effectively escape to the area requiring illumination. In this embodiment, when light propagates to the inner ring 31, it first strikes the serrated inclined surface (the inclined surface of the peak 331 or the valley wall of the concave valley 332). This causes a series of complex micro-optical phenomena, such as refraction, reflection, and scattering, to occur on the serrated microstructure elements. Because the serrated, irregular surface greatly increases the geometric angle of contact between the light and the medium, the light is scattered in all directions. Through countless repetitions of refraction, reflection, and scattering, the originally highly directional light beam is "dispersed." The light is repeatedly randomized between the serrated inner walls, and its propagation path is completely disrupted. Ultimately, the intensity distribution of the light emitted from the inner ring 31 at various angles tends to be uniform. The serrated microstructure efficiently converts point or line light sources into uniform surface light sources, completely eliminating "hot spots" or "dark areas" and achieving a smooth, glare-free illumination effect. By disrupting total internal reflection, it forces more light that would otherwise be ineffectively transmitted within the enclosure to be effectively scattered to the target area, thereby improving the overall luminous efficiency of the optical system. The strong scattering effect significantly increases the beam angle of the emitted light, providing a wider and softer illumination range.

[0024] It is understandable that the serrated microstructure can be integrally formed during the injection molding of the inner ring cover 31 without the need for additional diffusion film or diffusion plate, which simplifies the lamp assembly process, reduces manufacturing costs, and ensures structural consistency.

[0025] In a preferred embodiment, the mask assembly 3 has a semi-circular annular structure. For example... Figure 3 As shown, the semi-circular ring structure is suitable for scenarios that require semi-circular light output, such as wall lamps and ambient lights embedded in walls. It has a simple design and is easy to install.

[0026] Specifically, the inner ring cover 31 and / or the outer ring cover 32 are made of milky white acrylic material.

[0027] In this embodiment, both the inner ring cover 31 and the outer ring cover 32 are made of milky white acrylic (PMMA). Milky white acrylic is chosen because it possesses excellent light diffusion and high light transmittance. When light passes through the inner ring cover 31, it is first diffused by the serrated microstructure on its inner surface, and then undergoes multiple refractions and scatterings within the milky white acrylic material, forming a uniform surface light source effect. This synergistic effect of the material and microstructure ensures that the light can be evenly and softly scattered to the outer ring cover 32, ultimately illuminating the entire semi-circular annular mask, achieving a wide-range light emission effect with no dark areas and a emission angle exceeding 180°.

[0028] In a preferred embodiment, the lamp housing 1 is provided with a first slot 11, and the mask assembly 3 is provided with a buckle portion 35 that engages with the first slot 11.

[0029] refer to Figure 3 In this embodiment, the mask assembly 3 and the lamp housing 1 are assembled by interlocking the snap-fit ​​part 35 and the first slot 11, which has the advantages of convenient assembly and disassembly and simple structure. The snap-fit ​​part 35 is integrally formed with the mask assembly 3.

[0030] In a preferred embodiment, the light panel 2 includes a panel 21 and a plurality of light-emitting units disposed on the panel 21. Each group of light-emitting units includes a first LED bead 22 located in a first row and a second LED bead 23 located in a second row. In the length direction of the panel 21, the plurality of first LED beads 22 in the first row and the plurality of second LED beads 23 in the second row are arranged alternately.

[0031] Specifically, the first row of multiple first LED beads 22 are arranged at equal intervals, the second row of multiple second LED beads 23 are arranged at equal intervals, and the projection of the first LED bead 22 is directly opposite the center position between two adjacent second LED beads 23.

[0032] Specifically, multiple light-emitting units are arranged along the length of the plate 21 to form multiple light-emitting unit groups, and the light-emitting unit groups are arranged in a linear array.

[0033] In this embodiment, the lamp board 2 mainly includes a long strip-shaped board 21 and multiple sets of light-emitting units disposed on the board 21. The board 21 is preferably a printed circuit board, with a length much greater than its width, suitable for strip lighting or backlighting applications. Cables 5 are provided at both ends of the board 21 for connecting to external power and control signals. End caps 4 are provided at both ends of the lamp housing 1, and the end caps 4 have through holes for the cables 5 to pass through. Generally, the cables 5 are electrically connected to the board 21.

[0034] The light-emitting unit is composed of multiple LED beads. These LED beads are arranged in a parallel first row and a second row. Specifically, the first LED bead 22 in the first row and the second LED bead 23 in the second row correspond one-to-one in the length direction of the plate 2110, together forming the light-emitting unit.

[0035] The key improvement in this embodiment is that the plurality of first LED beads 22 in the first row and the plurality of second LED beads 23 in the second row are arranged in an alternating pattern. More preferably, as shown in the figure... Figure 5 As shown, the LEDs in the first and second rows are arranged at equal intervals of P. Furthermore, in the direction perpendicular to the length of the plate 21, the projection of the first LED 22 is directly opposite the center position between two adjacent second LEDs 23. That is, the LEDs in the first and second rows are staggered by exactly half a spacing in the horizontal direction. This arrangement effectively breaks the spatial symmetry of the two rows of LEDs, making the light source more dispersed in the illumination direction. This results in significantly better uniformity of the light spot or light field formed at the far end compared to the traditional parallel alignment arrangement, eliminating obvious linear dark areas.

[0036] In a preferred embodiment, the lamp housing 1 is provided with a second slot 12 for engaging the plate 21. In this embodiment, the plate 21 is engaged and fixed with the second slot 12, facilitating the assembly and disassembly of the lamp board 2. The installation process of the lamp board 2 and the mask assembly 3 is as follows: insert the lamp board 2 along the second slot 12, connect the cables 5 at both ends, and apply appropriate silicone potting compound to the solder joints of the lamp board 2 and cables 5 to waterproof them, exposing the light-emitting surface of the LED beads. Then, insert the mask assembly 3 along the first slot 11, and finally lock the end caps 4 to both ends of the lamp housing 1 to complete the assembly of the linear light.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A linear light, characterized in that, The device includes a lamp housing (1), a lamp plate (2) installed inside the lamp housing (1), and a mask assembly (3) covering the lamp plate (2). The mask assembly (3) includes an inner ring cover (31) and an outer ring cover (32). The inner ring cover (31) is located in front of the light path of the lamp plate (2), and its inner surface facing the lamp plate (2) is provided with a light diffusion structure (33) for light diffusion. The outer ring cover (32) is coaxially arranged with the inner ring cover (31) and forms an annular peripheral light-emitting area (34) between the outer ring cover (31) and the inner ring cover (31). The light emitted from the lamp plate (2) is transmitted through the light diffusion structure (33) of the inner ring cover (31), scattered to the outer ring cover (32), and emitted from the annular peripheral light-emitting area (34) to expand the light emission angle.

2. The linear light according to claim 1, characterized in that, The light diffusion structure (33) is a serrated microstructure, and the serrated microstructure is continuously distributed on the entire inner surface of the inner ring cover (31).

3. The linear light according to claim 2, characterized in that, The serrated microstructure consists of alternating peaks (331) and valleys (332).

4. The linear light according to claim 1, characterized in that, The mask assembly (3) has a semi-circular ring structure.

5. The linear light according to claim 1, characterized in that, The inner ring cover (31) and / or the outer ring cover (32) are made of milky white acrylic material.

6. The linear light according to claim 1, characterized in that, The lamp housing (1) is provided with a first slot (11), and the mask assembly (3) is provided with a buckle (35) that engages with the first slot (11).

7. The linear light according to claim 1, characterized in that, The light panel (2) includes a panel (21) and multiple sets of light-emitting units disposed on the panel (21). Each set of light-emitting units includes a first LED (22) located in the first row and a second LED (23) located in the second row. In the length direction of the panel (21), the multiple first LEDs (22) in the first row and the multiple second LEDs (23) in the second row are arranged alternately.

8. The linear light according to claim 7, characterized in that, The first row of multiple first LED beads (22) are arranged at equal intervals, and the second row of multiple second LED beads (23) are arranged at equal intervals, and the projection of the first LED bead (22) is directly opposite the center position between two adjacent second LED beads (23).

9. The linear light according to claim 7, characterized in that, Multiple light-emitting units are arranged along the length of the plate (21) to form multiple light-emitting unit groups, and the light-emitting unit groups are arranged in a linear array.

10. The linear light according to claim 7, characterized in that, The lamp housing (1) is provided with a second slot (12) for engaging the plate (21).

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