A buried lamp
By introducing optical control components into the in-ground light and using reflectors and prism plates to adjust the light distribution, the glare problem caused by direct sunlight from the in-ground light source is solved, thus improving the safety of outdoor lighting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 惠州智英光电科技有限公司
- Filing Date
- 2025-10-17
- Publication Date
- 2026-07-24
AI Technical Summary
The light from in-ground lights shines directly into people's eyes, causing glare and increasing the safety risk of falls or collisions.
Optical control components, including reflectors and prisms, are used to adjust the light distribution by multi-angle diffuse reflection and scattering of light to reduce glare.
Through the design of optical control components, light is calibrated to a safe viewing angle, reducing glare and ensuring the safety of pedestrians and vehicle drivers.
Smart Images

Figure CN224551386U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lighting facilities technology, specifically relating to an in-ground lamp. Background Technology
[0002] In-ground lights are lighting fixtures embedded in the ground, primarily used in outdoor landscape lighting, municipal walkway lighting, commercial plaza decorative lighting, building ground floor outline lighting, and auxiliary lighting for parking lot entrances and exits. Because of their recessed installation method, in-ground lights can be completely or partially hidden underground, offering advantages such as not occupying ground space, high integration with the environment, and strong visual unity, making them a core component of modern outdoor lighting systems.
[0003] Currently, in-ground lights mainly consist of a housing and a lamp cover. The housing is embedded below the ground and contains an LED light source. The light from the LED light source shines through the lamp cover, illuminating the ground.
[0004] However, the light from in-ground lights shines directly into the eyes of pedestrians or drivers, and the strong light can cause visual discomfort and glare, which in turn increases the safety risk of falls or collisions. Utility Model Content
[0005] To address the shortcomings of the existing technology, this utility model provides an in-ground light in which the optical control component performs multi-angle diffuse reflection and scattering of the light emitted by the light source, thereby eliminating glare and solving the problem of strong light shining directly into the eyes, ensuring the safety of pedestrians and vehicles.
[0006] The technical effects to be achieved by this utility model are realized through the following technical aspects: This utility model provides an in-ground light, comprising: a housing including a light-transmitting portion; a light source disposed within the housing, wherein light emitted by the light source is emitted through the light-transmitting portion; and an optical control component disposed on the side of the light source near the light-transmitting portion, wherein the optical control component includes a reflector, wherein light emitted by the light source enters the reflector, and the reflector includes a light-emitting section, wherein a prism plate is disposed within the light-emitting section.
[0007] In some implementations, a positioning groove is formed on the inner wall of the light-emitting section, and the prism plate is disposed in the positioning groove, with the prism plate being adapted to the positioning groove.
[0008] In some implementations, the housing includes a shell and a bottom cover, the light-transmitting portion is disposed on the shell, and the shell and the bottom cover are detachably connected.
[0009] In some implementations, the outer wall of the bottom cover is provided with an inner protruding ridge, and when the bottom cover is inserted into the housing, the inner protruding ridge abuts against the inner wall of the housing.
[0010] In some implementations, the reflector cup includes a light-inlet section, the light source is located on one side of the light-inlet section, a waterproof ring is fitted on the light-inlet section, the waterproof ring abuts against the inner wall of the housing, and the waterproof ring is located at the interface between the bottom cover and the housing.
[0011] In some implementations, a power line is provided on the light source, and a fixing structure for fixing the power line is provided on the side of the light source away from the optical control component.
[0012] In some implementations, the fixing structure includes a fixing ring disposed on a connecting piece. The connecting piece has a wire-clamping hole for the power cord to pass through, and the connecting piece has a groove protruding outward. The power cord passes through the wire-clamping hole and is clamped into the groove.
[0013] In some implementations, the bottom cover has an injection hole, and a plug is provided in the injection hole of the bottom cover. The plug has a through hole for the power cord to pass through.
[0014] In some implementations, the outer wall of the housing is provided with an outwardly protruding ridge.
[0015] In some implementations, a protective ring is fitted onto the light-transmitting portion, and the protective ring is threadedly connected to the light-transmitting portion.
[0016] In summary, this utility model has at least the following advantages: The in-ground light provided by this utility model has a light source that enters an optical control component. The scattered light emitted by the light source is initially collected to form a main beam. Through the reflection and guidance of a reflector and the refraction of a prism plate, the main beam emitted by the light source is directed towards the target illumination direction at a certain angle to the ground and exits through a transmission section. The emitted light is calibrated to a safe viewing angle for the human eye, reducing discomfort caused by direct light irradiation. The light source control component adjusts the light distribution and beam angle to improve glare, thus ensuring the safety of pedestrians and drivers. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the in-ground lamp according to a specific embodiment of the present utility model.
[0018] Figure 2 This is an exploded view of an in-ground lamp according to a specific embodiment of the present invention.
[0019] Figure 3 This is a schematic diagram of the fixing structure in a specific embodiment of the present utility model.
[0020] Figure 4This is a schematic diagram of the bottom cover and shell of a specific embodiment of the present utility model.
[0021] Marked in the image: 1. Outer shell; 11. Light-transmitting part; 12. Shell; 121. Outer protruding ridge; 13. Bottom cover; 131. Inner protruding ridge; 132. Glue injection hole; 14. Fixing structure; 141. Fixing ring; 142. Connecting piece; 1421. Wire locking hole; 1422. Wire locking part; 1423. Wire winding part; 15. End cap; 151. Wire threading hole; 2. Light source; 3. Optical control assembly; 31. Reflector cup; 311. Light emitting section; 312. Positioning groove; 313. Light entering section; 32. Prism plate; 4. Waterproof ring; 5. Power cord; 6. Face ring. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.
[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0024] Example 1: Please see Figure 1 and Figure 2 The in-ground light of this invention can improve the glare problem caused by direct strong light, so that it can be used in different lighting scenarios.
[0025] Please see Figure 1 The in-ground light of this utility model includes a housing 1. When the in-ground light is installed, the housing 1 is embedded in the ground, thus concealing the in-ground light. The housing 1 includes a light-transmitting part 11 for light transmission. Specifically, the light-transmitting part 11 can be made of light-transmitting polycarbonate material.
[0026] Please combine Figure 2 The housing 1 contains a light source 2, which can be an LED module. LED modules have good color rendering. The light emitted by the light source 2 is emitted through the light-transmitting part 11. An optical control component 3 is provided on the side of the light source 2 near the light-transmitting part 11. The optical control component 3 performs multi-directional diffuse reflection and scattering of light to achieve the effect of anti-glare.
[0027] The optical control component 3 includes a reflector 31, which is disposed on one side of the light source 2. Light emitted from the light source 2 enters the reflector 31, which includes a light-emitting section 311. A prism plate 32 is disposed within the light-emitting section 311. The light entering the reflector 31 is adjusted for light distribution by the prism plate 32, and then emitted from the light-transmitting part 11. Specifically, the prism plate 32 can be a hexagonal prism plate made of transparent polycarbonate. The surface of the hexagonal prism plate is composed of countless tiny hexagonal prisms, which disperse the light into a soft and uniform beam, thus working with the reflector 31 to prevent glare. It is understood that the way the hexagonal prism plate disperses light is known to those skilled in the art and is achievable, and will not be described in detail in this embodiment.
[0028] In a preferred embodiment, a positioning groove 312 is provided on the inner wall of the light-emitting section 311. Specifically, the positioning groove 312 is an annular groove. The prism plate 32 is disposed in the positioning groove 312 and is adapted to the positioning groove 312, which can reduce the light leakage problem at the edge of the light-emitting section 311. At the same time, the prism plate 32 is precisely positioned by the positioning groove 312, and the beam is not easily deviated, so that the light control angle is accurately connected.
[0029] The light emitted from light source 2 enters the reflector cup 31. The reflector cup 31 initially collects the scattered light emitted from light source 2 and guides the main beam, controlling the beam angle to 78°. Specifically, this is not a specific limitation on the beam angle; those skilled in the art can adjust the reflector cup 31 according to the required illumination angle. The prism plate 32 refracts the light at the light-emitting section 311 of the reflector cup 31 to calibrate the light emission angle, or reflects the light back to the light-emitting section 311 of the reflector cup 31, allowing for secondary use of the light. The optical control component 3 ensures uniform illumination, effectively reducing glare and alleviating eye discomfort caused by direct light, thereby ensuring the safety of pedestrians and vehicle drivers.
[0030] Example 2: The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the outer shell 1 of this utility model. Please refer to [link / reference]. Figure 2 .
[0031] Please see Figure 4 In this embodiment, the outer casing 1 includes a housing 12 and a bottom cover 13. A light-transmitting part 11 is disposed on the housing 12. The light-transmitting part 11 seals one side of the housing 12. The light emitted by the light source 2 is controlled by the optical control component 3 and finally shines out through the light-transmitting part 11. The light-transmitting part 11 can protect the optical control component 3, making it waterproof and dustproof, which is beneficial to extending the service life of the internal optical control component 3 and the light source 2. The housing 12 and the bottom cover 13 are detachably connected.
[0032] In some specific embodiments, the outer wall of the bottom cover 13 is provided with an inner protruding rib 131. When the bottom cover 13 is inserted into the housing 12, the inner protruding rib 131 abuts against the inner wall of the housing 12, and the bottom cover 13 and the housing 12 are fastened together. Specifically, the inner protruding rib 131 includes an arc-shaped abutting surface, which abuts against the inner wall of the housing 12. The arc-shaped abutting surface facilitates easy assembly of the bottom cover 13 and the housing 12. At the same time, multiple inner protruding ribs 131 are provided, and multiple inner protruding ribs 131 are spaced apart around the outer periphery of the bottom cover 13 on the outer wall, which can improve the stability of the assembly of the bottom cover 13 and the housing 12.
[0033] In some specific embodiments, the outer wall of the housing 12 is provided with an outwardly protruding ridge 121. Before the housing 12 is embedded in the ground, a mounting box is pre-embedded in the ground, and the housing 12 is embedded in the mounting box. The outer wall of the outwardly protruding ridge 121 abuts against the inner wall of the mounting box, and the housing 12 is fixed by the outwardly protruding ridge 121 and the mounting box. Specifically, the cross-section of the outwardly protruding ridge 121 is trapezoidal, and multiple outwardly protruding ridges 121 are provided. Multiple outwardly protruding ridges 121 are spaced apart around the outer periphery of the housing 12 on the outer wall of the housing 12, making the installation of the housing 12 convenient.
[0034] In some specific embodiments, the reflector cup 31 includes a light-inlet section 313, with the light source 2 disposed on one side of the light-inlet section 313. Specifically, the light-inlet section 313 is cylindrical, while the light-outlet section 311 is a shallow cup-shaped section connected to the light-inlet section 313. The reflector cup 31 guides the light beam through the curved surface of the light-outlet section 311. A waterproof ring 4 is fitted on the outer side of the light-inlet section 313. Specifically, the waterproof ring 4 is preferably, but not limited to, a silicone ring. The waterproof ring 4 abuts against the inner wall of the housing 12 and is located at the interface between the bottom cover 13 and the housing 12. The waterproof ring 4 restricts external moisture from entering the housing 12.
[0035] In a preferred embodiment, a protective ring 6 is provided on the light-transmitting part 11. Specifically, the protective ring 6 can be made of stainless steel or die-cast aluminum, which can improve the overall structural strength and corrosion resistance of the inground lamp.
[0036] Example 3: The difference between this embodiment and the above embodiments is that this embodiment makes further structural optimizations to the outer shell 1 of this utility model. Please refer to [link / reference]. Figure 3 and Figure 4 .
[0037] The light source 2 of this invention is provided with a power cord 5. A fixing structure 14 for fixing the power cord 5 is provided on the side of the power source away from the optical control component 3. In some specific embodiments, the fixing structure 14 includes a fixing ring 141, on which the light source 2 is placed. A connecting piece 142 is provided at the end of the fixing ring 141 away from the power source. The connecting piece 142 has a wire-locking hole 1421 for the power cord 5 to pass through, and the power cord 5 is initially fixed by passing through the wire-locking hole 1421. The connecting piece 142 protrudes to form a slot 1422, which is specifically an arc-shaped groove. After passing through the wire-locking hole 1421, the power cord 5 is locked into the slot 1422, and the power cord 5 is fixed. Furthermore, the connecting piece 142 protrudes outward to form a winding portion 1423, which can specifically be an arc-shaped piece. A space for the power cord 5 to be wound and routed is formed between the winding portion 1423 and the inner wall of the fixing ring 141. After the power cord 5 passes through the wire-locking hole 1421, it is wound along the winding portion 1423 and finally wound into the slot portion 1422 for fixation.
[0038] In some specific embodiments, the bottom cover 13 is provided with an injection hole 132. When assembling the inground light, after the light source 2, optical control component 3, and fixing ring 141 are assembled into the bottom cover 13 and the housing 12, epoxy resin is injected through the injection hole 132, which can achieve a good sealing effect. The bottom cover 13 is provided with a plug 15 in the injection hole 132. The plug 15 can be a silicone plug. The plug 15 is provided with a wire hole 151 for the power cord 5 to pass through. After being fixed by the fixing structure 14, the power cord 5 passes through the wire hole 151 to connect to the external power source.
[0039] Specifically, the bottom cover 13 has multiple heat dissipation holes arranged in a ring along the edge of the bottom cover 13. The heat dissipation holes facilitate the dissipation of heat from the inside of the outer shell 1, and at the same time, make it easy to observe the glue injection process.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0042] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0043] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0044] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.
Claims
1. An in-ground light, characterized in that, include: The outer casing (1) includes a light-transmitting portion (11); A light source (2) is disposed inside the housing (1), and the light emitted by the light source (2) is emitted through the light-transmitting part (11); as well as An optical control component (3) is disposed on the side of the light source (2) near the light-transmitting part (11). The optical control component (3) includes a reflector (31). The light emitted by the light source (2) enters the reflector (31). The reflector (31) includes a light-emitting section (311). A prism plate (32) is disposed in the light-emitting section (311).
2. The in-ground light according to claim 1, characterized in that, The inner wall of the light-emitting section (311) is provided with a positioning groove (312), and the prism plate (32) is disposed in the positioning groove (312), and the prism plate (32) is adapted to the positioning groove (312).
3. The in-ground light according to claim 1, characterized in that, The outer casing (1) includes a housing (12) and a bottom cover (13), the light-transmitting part (11) is provided on the housing (12), and the housing (12) and the bottom cover (13) are detachably connected.
4. The in-ground light according to claim 3, characterized in that, The outer wall of the bottom cover (13) is provided with an inner protruding ridge (131). When the bottom cover (13) is inserted into the shell (12), the inner protruding ridge (131) abuts against the inner wall of the shell (12).
5. The in-ground light according to claim 3, characterized in that, The reflector cup (31) includes a light-inlet section (313), the light source (2) is located on one side of the light-inlet section (313), a waterproof ring (4) is fitted on the light-inlet section (313), the waterproof ring (4) abuts against the inner wall of the housing (12), and the waterproof ring (4) is located at the interface between the bottom cover (13) and the housing (12).
6. The in-ground light according to claim 3, characterized in that, A power line (5) is provided on the light source (2), and a fixing structure (14) for fixing the power line (5) is provided on the side of the light source (2) away from the optical control component (3).
7. The in-ground light according to claim 6, characterized in that, The fixing structure (14) includes a fixing ring (141), which is disposed on a connecting piece (142). The connecting piece (142) has a wire-locking hole (1421) for the power cord (5) to pass through. The connecting piece (142) has a slot (1422) protruding outward. The power cord (5) passes through the wire-locking hole (1421) and is locked into the slot (1422).
8. The in-ground light according to claim 7, characterized in that, The bottom cover (13) has an injection hole (132) and a plug (15) is provided in the injection hole (132). The plug (15) has a wire hole (151) for the power cord (5) to pass through.
9. The in-ground light according to claim 3, characterized in that, The outer wall of the housing (12) is provided with an outward protrusion (121).
10. The in-ground light according to claim 1, characterized in that, A face ring (6) for protecting the light-transmitting part (11) is sleeved on the light-transmitting part (11), and the face ring (6) is threadedly connected to the light-transmitting part (11).