Polarizing reflector structure and lamp applying same

Abstract

The invention discloses a polarized light reflector structure and a lamp applying the polarized light reflector structure, and relates to the technical field of LED illumination, the polarized light reflector structure comprises a reflection bottom plate, reflection side plates are installed on the two sides of the reflection bottom plate, the reflection bottom plate is provided with a light inlet hole used for allowing light to enter, and the light inlet hole is communicated with the reflection side plates. The reflection bottom plate and the two reflection side plates are detachably connected and enclose to form a reflection cavity, so that incident light is emitted according to a preset polarization angle; wherein a first reflecting surface and a first mounting bottom surface are adjacently arranged on the reflecting bottom plate, and a second reflecting surface is arranged on the reflecting side plate; different preset polarization angles can be set by adjusting a first included angle between the first reflecting surface and the first mounting bottom surface and a second included angle between the second reflecting surface and the first reflecting surface of the reflecting bottom plate; the first included angle and the second included angle are both smaller than 180 degrees. The polarized light lamp solves the problem that in the prior art, the processing period of the reflector of a polarized light lamp is long.

Description

Technical Field

[0001] This invention relates to the field of LED lighting technology, and more particularly to a polarizing reflector structure and a luminaire using the polarizing reflector structure. Background Technology

[0002] In the field of LED lighting technology, especially in high-quality lighting environments where light distribution and uniformity are highly demanding (such as commercial displays, building facade lighting, and road lighting), the polarization angle design of luminaires has a significant impact on luminous efficacy and visual comfort.

[0003] In existing technologies, polarized lamps achieve their polarized lighting effect by fixing the light source to the side of a heat sink and then reflecting the light from the side of the heat sink at a certain angle using a reflector. However, the polarization angle design of traditional reflectors is mostly achieved optically, and the reflectors are molded using injection molding. Furthermore, the early stages require the creation of test molds and verification, resulting in a long processing cycle and high mold costs.

[0004] It is evident that existing polarized lamps suffer from a long processing cycle for reflectors. Summary of the Invention

[0005] The purpose of this invention is to provide a polarizing reflector structure and a lamp using the polarizing reflector structure, which solves the problem of long processing cycle of reflectors in existing polarizing lamps.

[0006] To achieve this objective, the present invention adopts the following technical solution: According to a first aspect, the present invention provides a polarizing reflector structure, including a reflective base plate, reflective side plates installed on both sides of the reflective base plate, the reflective base plate having a light inlet hole for allowing light to enter, and the reflective base plate and the two reflective side plates being detachably connected and enclosing to form a reflective cavity, so that the incident light is emitted according to a preset polarization angle. The reflective base plate has a first reflective surface and a first mounting base surface adjacent to each other, and the reflective side plate has a second reflective surface. By adjusting the first angle between the first reflective surface and the first mounting base surface, and the second angle between the second reflective surface and the first reflective surface of the reflective base plate, different preset polarization angles can be set. The first angle and the second angle are both less than 180 degrees.

[0007] Optionally, the first reflective surface is concave, and the first mounting base is flat; at the light-incoming edge of the reflective base plate, the angle between the cross-section of the first reflective surface and the first mounting base forms the first angle, and the angle between the cross-section of the first reflective surface and the second reflective surface forms the second angle.

[0008] Optionally, the first included angle is 97 degrees to 103 degrees, and the second included angle is 95 degrees to 101 degrees.

[0009] Optionally, the reflective base plate is provided with a second mounting surface, and at the light-incoming edge of the reflective base plate, a third included angle is formed between the first mounting surface and the second mounting surface, and the third included angle is an obtuse angle.

[0010] Optionally, the third included angle is 162 degrees to 168 degrees.

[0011] According to a second aspect, the present invention provides a lamp, including a lamp housing, wherein a light source plate and a polarizing reflector structure as described in the first aspect are installed inside the lamp housing, the light inlet hole of the reflective base plate is arranged adjacent to the light source plate, and a light-transmitting plate for sealing the polarizing reflector structure is installed on the lamp housing; a fourth included angle is formed between the light source plate and the first mounting surface of the reflective base plate.

[0012] Optionally, when the first included angle is 100 degrees, the second included angle is 98 degrees, and the fourth included angle is 3 degrees, the polarization angle of the lamp is 60 degrees.

[0013] Optionally, the outer wall of the lamp housing is provided with a plurality of spaced heat dissipation fins, the heat dissipation fins and the lamp housing are integrally formed; a waterproof ring is installed between the lamp housing and the light-transmitting plate, and a pressure plate distributed along the edge of the light-transmitting plate is fastened to the lamp housing, the pressure plate being pressed against the light-transmitting plate.

[0014] Optionally, an adjustment assembly is connected to the lamp housing. The adjustment assembly includes an adjustment bracket and an adjustment screw. The adjustment screw passes through the adjustment bracket and is threadedly connected to the lamp housing. The adjustment bracket is used to install the lamp in a preset position, and the lamp housing is fastened to different positions on the adjustment bracket by the adjustment screw to adjust the elevation angle of the lamp housing.

[0015] Optionally, the lamp housing is provided with a first scale, the adjustment frame is provided with a second scale corresponding to the first scale, and the lamp housing is provided with an indicator protrusion arranged adjacent to the first scale, the indicator protrusion cooperating with the second scale.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a polarizing reflector structure and a luminaire using this structure. By employing a detachable reflective base plate and reflective side plate combination structure, it replaces the traditional one-piece injection-molded reflector, avoiding the complex process of mold making and repeated verification. This structure allows for direct production of components through standardized or simplified processing methods, significantly shortening the product's design-to-mass production cycle and substantially reducing mold development and manufacturing costs. The polarization effect of the reflective surface is directly determined by the first and second included angles; by adjusting these two key angles during the design or assembly stage, different preset polarization angles can be precisely set to meet diverse lighting scenario requirements. Therefore, this invention solves the problem of long processing cycles for reflectors in existing polarizing luminaires. Attached Figure Description

[0017] 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 these drawings without creative effort.

[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0019] Figure 1 A three-dimensional structural diagram of a polarizing reflector structure provided in an embodiment of the present invention; Figure 2 This is an exploded structural diagram of a polarizing reflector structure provided in an embodiment of the present invention; Figure 3 A schematic diagram of the included angle structure of a polarizing reflector structure provided in an embodiment of the present invention; Figure 4 This is one of the three-dimensional structural schematic diagrams of a lamp provided in an embodiment of the present invention; Figure 5 This is a second three-dimensional structural schematic diagram of a lamp provided in an embodiment of the present invention; Figure 6 This is an exploded structural diagram of a lamp provided in an embodiment of the present invention; Figure 7 This is a cross-sectional structural diagram of a lamp provided in an embodiment of the present invention; Figure 8 for Figure 7 A magnified structural diagram at point E; Figure 9 This is an exploded structural diagram of an adjustment component in a lamp provided by an embodiment of the present invention; Figure 10 for Figure 4 A magnified structural diagram at point F.

[0020] Illustration: 10. Reflective base plate; 11. Light inlet hole; 12. First reflective surface; 13. First mounting base surface; 14. Second mounting base surface; 20. Reflective side plate; 21. Second reflective surface; 30. Lamp housing; 31. Heat dissipation fins; 32. First dial; 33. Indicator protrusion; 40. Light source plate; 50. Light-transmitting plate; 60. Waterproof ring; 70. Pressure plate; 80. Adjustment assembly; 81. Adjustment bracket; 811. Second dial; 82. Adjustment screw; 83. Adjustment cover plate; 84. Fastening screw; 90. Insulating sheet. Detailed Implementation

[0021] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] This invention provides a polarizing reflector structure, such as... Figures 1 to 3 As shown, it includes a reflective base plate 10, and reflective side plates 20 are installed on both sides of the reflective base plate 10. The reflective base plate 10 is provided with a light inlet hole 11 for light to enter. The reflective base plate 10 and the two reflective side plates 20 are detachably connected and enclosed to form a reflective cavity so that the incident light is emitted according to a preset polarization angle. The reflective base plate 10 has a first reflective surface 12 and a first mounting base 13 adjacent to each other, and the reflective side plate 20 has a second reflective surface 21. Different preset polarization angles can be set by adjusting the first included angle A between the first reflective surface 12 and the first mounting base 13, and the second included angle B between the second reflective surface 21 and the first reflective surface 12 of the reflective base plate 10; wherein both the first included angle A and the second included angle B are less than 180 degrees. In this embodiment, the reflective base plate 10 has an insertion hole, and the reflective side plate 20 has an integrally formed insert. The insert passes through the insertion hole and is bent to fit tightly against the reflective base plate 10, thereby achieving splicing and fixing of the reflective base plate 10 and the reflective side plate 20.

[0025] It should be noted that the polarizing reflector structure provided by this invention, by employing a detachably connected reflective base plate 10 and reflective side plate 20 combined structure, replaces the traditional one-piece injection-molded reflector, avoiding the complex process of experimental mold making and repeated verification. This structure allows for direct production of individual components through standardized or simplified processing methods, greatly shortening the product cycle from design to mass production, while significantly reducing mold development and manufacturing costs. The polarization effect of the reflective surface is directly determined by the first included angle A and the second included angle B; by adjusting these two key included angles during the design or assembly stage, different preset polarization angles can be precisely set to meet diverse lighting scenario requirements. Therefore, this invention solves the problem of long processing cycles for reflectors in existing polarizing lamps.

[0026] like Figures 1 to 3 As shown, the first reflective surface 12 is concave, and the first mounting base 13 is flat. At the light-incoming edge of the reflective base plate 10, the included angle between the cross-section of the first reflective surface 12 and the first mounting base 13 forms a first included angle A, and the included angle between the cross-section of the first reflective surface 12 and the second reflective surface 21 forms a second included angle B. In specific implementations, the first included angle A is 97 degrees to 103 degrees, and the second included angle B is 95 degrees to 101 degrees. For example, the first included angle A is 100 degrees, and the second included angle B is 98 degrees.

[0027] Traditional reflectors rely on complex curved optical designs, and their polarization effect is extremely sensitive to mold precision. Even minute manufacturing tolerances can lead to significant deviations in the light emission angle and spot shape, which are difficult to correct using simple methods, resulting in poor product consistency. By defining the core optical control parameters as the first included angle A and the second included angle B—two directly machinable and measurable mechanical angles—the complex control of the optical curved surface is transformed into the control of simple geometric angles. This combination can efficiently and precisely guide lateral incident light to a preset polarization direction. This design ensures that as long as the manufacturing process meets the angular tolerances, the optical effect is highly consistent, greatly improving the optical quality stability and reliability of the product.

[0028] In practical implementation, simple planar or single-curved reflectors, when achieving large-angle polarization, easily produce distinct cutoff lines or localized bright spots, resulting in poor uniformity of the illuminated surface or uncomfortable glare. Using a concave surface as the first reflecting surface 12, which inherently possesses a certain light diffusion and mixing capability, and working in conjunction with a second reflecting surface 21 at a specific angle (e.g., A=100°, B=98°), allows for relay-style guidance and softening of the light. This structure not only achieves the required polarization angle but, more importantly, enables the emitted light to form a softly transitioned, uniformly illuminated spot within the target area, effectively suppressing glare and improving visual comfort, making it particularly suitable for commercial and architectural lighting where high light quality is required.

[0029] Traditional designs require the fabrication of a complete experimental model of the reflector to verify and adjust its optical effectiveness. Each modification necessitates the re-manufacturing of the model, a process that is time-consuming and costly. This new structure deconstructs the optical system into two core components: a reflective base plate 10 and a reflective side plate 20. Their optical performance is primarily determined by two separable and easily manufacturable included angles (A, B). During the R&D phase, the optimal optical solution can be quickly and cost-effectively selected by adjusting the combination of these two angles using simple tooling (e.g., testing different pairings within the angle range such as 97° / 95°, 100° / 98°, and 103° / 101°). This transforms optical development from a model-based trial-and-error approach to a parameterized rapid verification model, fundamentally shortening the R&D cycle and reducing R&D costs and risks.

[0030] like Figures 1 to 3 As shown, the reflective base plate 10 is provided with a second mounting base surface 14. At the light-incoming edge of the reflective base plate 10, a third included angle C is formed between the first mounting base surface 13 and the second mounting base surface 14. The third included angle C is an obtuse angle. In specific implementation, the third included angle C is between 162 degrees and 168 degrees.

[0031] In practice, the design of the optical angles (first included angle A, second included angle B) of the reflector is often limited by installation space and interfaces, leading to compromises in optical performance or increased mechanical complexity. The third included angle C, as an independent mechanical installation angle parameter, effectively separates the reflector's installation posture control from the optical path control within the reflective cavity (determined by A and B). Designers can prioritize determining included angles A and B based on optimal luminous efficacy, and then adjust the value of included angle C to adapt to different overall luminaire layouts or installation requirements, allowing for overall tilting and fine-tuning of the reflector's light output direction without altering the internal optical path design. This modular angle design system (A, B, C) significantly improves the product's adaptability to different application scenarios and luminaire structures.

[0032] In this embodiment, relying solely on the internal angle of the reflective cavity is sometimes insufficient to achieve a specific polarization direction, or requires the reflective surface itself to be too steep, leading to manufacturing difficulties or reduced optical efficiency. The introduction of the third included angle C is equivalent to adding a base tilt to the entire optical path of the reflective cavity. It works in conjunction with the internal reflection angles A and B to jointly determine the final preset polarization angle. For example, by using a reasonable angle C (such as 165°) in combination with specific A and B, a greater polarization effect can be achieved using a relatively easier-to-manufacture reflective surface, or a more precise calibration of the light output direction can be performed. This allows the final optical target to be achieved through multiple relatively mild and easily manufactured geometric angle combinations, improving optical performance while ensuring manufacturing convenience.

[0033] The present invention also provides a lamp, such as Figures 1 to 10 As shown, the lamp includes a lamp housing 30, within which a light source plate 40 and the aforementioned polarizing reflector structure are installed. The light inlet 11 of the reflective base plate 10 is arranged adjacent to the light source plate 40. A light-transmitting plate 50 for sealing the polarizing reflector structure is installed on the lamp housing 30. A fourth angle D is formed between the light source plate 40 and the first mounting surface 13 of the reflective base plate 10. When the first angle A is 100 degrees, the second angle B is 98 degrees, and the fourth angle D is 3 degrees, the polarization angle of the lamp is 60 degrees. In this embodiment, the light source plate 40 uses an LED light source. The light source plate 40 is fastened to the lamp housing 30 with screws. An insulating sheet 90 is provided between the light source plate 40 and the reflective base plate 10, and the insulating sheet 90 is fastened to the lamp housing 30 with screws. The reflective base plate 10 is also fastened to the lamp housing 30 with screws. The light-transmitting plate 50 is made of glass or other light-transmitting materials.

[0034] It should be noted that by introducing a fourth included angle D, together with the reflector's core optical angles (first included angle A, second included angle B) and the mounting reference angle (third included angle C), a complete closed angle control system is formed. The specific parameter combination given in the embodiment (A=100°, B=98°, D=3°) achieves a final polarization of 60 degrees. The insulating sheet 90 provides insulation between the light source board 40 and the reflector structure, ensuring the electrical safety of the luminaire.

[0035] like Figures 4 to 7 As shown, the outer wall of the lamp housing 30 is provided with multiple spaced heat dissipation fins 31, and the heat dissipation fins 31 and the lamp housing 30 are integrally formed. A waterproof ring 60 is installed between the lamp housing 30 and the light-transmitting plate 50. A pressure plate 70 distributed along the edge of the light-transmitting plate 50 is fastened to the lamp housing 30, and the pressure plate 70 is pressed against the light-transmitting plate 50. In this embodiment, the pressure plate 70 and the lamp housing 30 are fastened together by screws.

[0036] In practical implementation, by adopting a structure in which the outer wall of the lamp housing 30 and the heat dissipation fins 31 are integrally formed, a zero-thermal-resistance connection for heat dissipation is achieved. This allows the heat generated by the light source board 40 to be directly transferred to each fin without loss through the lamp housing 30 body, greatly improving heat dissipation efficiency. The integrally formed structure also gives the lamp housing 30 extremely high overall mechanical strength and structural stability, enabling it to support heavier and larger optical components and resist installation stress and environmental vibration. By setting a waterproof ring 60 and using a pressure plate 70 to tighten the light-transmitting plate 50 evenly onto the lamp housing 30 with screws, a reliable, uniform, and maintainable static sealing barrier is formed. This design can easily achieve a high protection standard of IP65 and above, ensuring that the lamp works stably for a long time in harsh environments such as rain and dust.

[0037] like Figures 4 to 9 As shown, an adjustment assembly 80 is connected to the lamp housing 30. The adjustment assembly 80 includes an adjustment bracket 81 and an adjustment screw 82. The adjustment screw 82 passes through the adjustment bracket 81 and is threadedly connected to the lamp housing 30. The adjustment bracket 81 is used to install the lamp in a preset position. The lamp housing 30 is fastened to different positions on the adjustment bracket 81 by the adjustment screw 82 to adjust the elevation angle of the lamp housing 30. In this embodiment, the adjustment bracket 81 is provided with an adjustment cover plate 83 for sealing the adjustment screw 82. The adjustment bracket 81 is screwed with a fastening screw 84 that abuts against the lamp housing 30. The fastening screw 84 is arranged adjacent to the adjustment screw 82.

[0038] In practice, multi-level elevation angle adjustment of the lamp housing 30 relative to the adjustment bracket 81 is achieved by directly threading the adjusting screw 82 to the lamp housing 30. Installers can smoothly change the beam projection angle according to the lighting requirements of the site. After adjustment, the adjacent fastening screws 84 are used to tighten the lamp housing 30, forming a double mechanical lock, effectively preventing accidental changes in the elevation angle due to vibration or gravity, and ensuring the long-term stability of the lighting effect. This adjusting component 80, as the final execution link of the entire angle control system, works in conjunction with the internal angles (A, B) of the reflector and the installation reference angles (C, D). It allows for final, necessary fine-tuning compensation based on precise mechanical and optical design and actual site conditions to eliminate minor deviations in the installation foundation, ensuring that the preset 60-degree polarization angle or other designed light patterns can be accurately projected onto the target area.

[0039] like Figures 4 to 10As shown, the lamp housing 30 is provided with a first scale 32, and the adjustment bracket 81 is provided with a second scale 811 corresponding to the first scale 32. The lamp housing 30 is provided with an indicator protrusion 33 arranged adjacent to the first scale 32, and the indicator protrusion 33 cooperates with the second scale 811 for indication. For example, in this embodiment, the first scale 32 is provided with a scale from 0 to 90, with an interval of 10; the second scale 811 is provided with a scale from 0 to 10, with an interval of 1. Initially, the indicator protrusion 33 is aligned with the 0 mark on the first dial 32 and the 0 mark on the second dial 811. When the elevation angle of the lamp housing 30 is adjusted, one end of the indicator protrusion 33 is aligned with the 0 mark on the first dial 32, and the other end of the indicator protrusion 33 is aligned with other marks on the second dial 811 to display the elevation angle of the lamp housing 30. When the indicator protrusion 33 is aligned with the 1 mark on the second dial 811, the elevation angle of the lamp housing 30 is 10 degrees.

[0040] In practice, traditional lamp elevation angle adjustment relies entirely on the installer's experience and visual estimation, or requires additional angle measuring tools. This process is cumbersome, inefficient, and struggles to guarantee accuracy and consistency across multiple adjustments, making precise data recording and reproduction impossible. By using the first dial 32 (0 to 90°, in 10° increments) and the second dial 811 in conjunction, and utilizing the indicator protrusion 33 as a common reading pointer, a built-in, intuitive angle measurement system is created. This design transforms abstract mechanical adjustment quantities into concrete scale readings (for example, aligning one end of the indicator protrusion 33 with "0" on the first dial 32 and the other end with "1" on the second dial 811 represents an elevation angle of 10°). This allows installers to quickly, accurately, and repeatedly set any desired elevation angle, much like using a protractor. This eliminates uncertainty in the adjustment process, elevating adjustment from experience-based estimation to precise calibration, significantly shortening on-site installation and adjustment time, and ensuring high consistency in the angle settings of multiple lamps within the same or different projects.

[0041] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A polarizing reflector structure, characterized in that, Includes a reflective base plate (10), on both sides of the reflective base plate (10) are reflective side plates (20), the reflective base plate (10) is provided with a light inlet hole (11) for light to enter, the reflective base plate (10) and the two reflective side plates (20) are detachably connected and enclosed to form a reflective cavity, so that the incident light is emitted according to a preset polarization angle. The reflective base plate (10) is provided with a first reflective surface (12) and a first mounting base (13) adjacent to each other, and the reflective side plate (20) is provided with a second reflective surface (21). By adjusting the first included angle between the first reflective surface (12) and the first mounting base (13), and the second included angle between the second reflective surface (21) and the first reflective surface (12) of the reflective base plate (10), different preset polarization angles can be set. The first included angle and the second included angle are both less than 180 degrees.

2. The polarizing reflector structure according to claim 1, characterized in that, The first reflective surface (12) is concave, and the first mounting base (13) is flat. At the light-inlet edge of the reflective base plate (10), the angle between the cross section of the first reflective surface (12) and the first mounting base (13) forms the first angle, and the angle between the cross section of the first reflective surface (12) and the second reflective surface (21) forms the second angle.

3. The polarizing reflector structure according to claim 2, characterized in that, The first included angle is 97 degrees to 103 degrees, and the second included angle is 95 degrees to 101 degrees.

4. The polarizing reflector structure according to claim 1, characterized in that, The reflective base plate (10) is provided with a second mounting base surface (14). At the light-inlet edge of the reflective base plate (10), a third included angle is formed between the first mounting base surface (13) and the second mounting base surface (14). The third included angle is an obtuse angle.

5. The polarizing reflector structure according to claim 4, characterized in that, The third included angle is between 162 and 168 degrees.

6. A lamp, characterized in that, The lamp includes a lamp housing (30), in which a light source plate (40) and a polarizing reflector structure as described in any one of claims 1 to 5 are installed. The light inlet (11) of the reflector plate (10) is arranged adjacent to the light source plate (40). A light-transmitting plate (50) for sealing the polarizing reflector structure is installed on the lamp housing (30). A fourth angle is formed between the light source plate (40) and the first mounting bottom surface (13) of the reflector plate (10).

7. The lamp according to claim 6, characterized in that, When the first included angle is 100 degrees, the second included angle is 98 degrees, and the fourth included angle is 3 degrees, the polarization angle of the lamp is 60 degrees.

8. The lamp according to claim 6, characterized in that, The outer wall of the lamp housing (30) is provided with a plurality of spaced heat dissipation fins (31), and the heat dissipation fins (31) and the lamp housing (30) are integrally formed; a waterproof ring (60) is installed between the lamp housing (30) and the light-transmitting plate (50), and a pressure plate (70) distributed on the edge of the light-transmitting plate (50) is fastened on the lamp housing (30), and the pressure plate (70) is pressed against the light-transmitting plate (50).

9. The lamp according to claim 6, characterized in that, An adjustment assembly (80) is connected to the lamp housing (30). The adjustment assembly (80) includes an adjustment bracket (81) and an adjustment screw (82). The adjustment screw (82) passes through the adjustment bracket (81) and is threadedly connected to the lamp housing (30). The adjustment bracket (81) is used to install the lamp in a preset position. The lamp housing (30) is fastened to different positions on the adjustment bracket (81) by the adjustment screw (82) so as to adjust the elevation angle of the lamp housing (30).

10. The lamp according to claim 9, characterized in that, The lamp housing (30) is provided with a first dial (32), the adjustment frame (81) is provided with a second dial (811) corresponding to the first dial (32), and the lamp housing (30) is provided with an indicator protrusion (33) arranged adjacent to the first dial (32). The indicator protrusion (33) cooperates with the second dial (811) for indication.

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