Small-angle multicolor light mixing projection lamp
By combining a light guide column, a soft light film, and a plano-convex lens, the problem of floodlights being unable to emit light at small angles is solved, achieving a high-brightness, uniform light emission effect at small angles, thus meeting the needs of long-distance lighting.
Patent Information
- Application Number
- CN202423169153.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing floodlights cannot emit light at a small angle, making it difficult to provide high-brightness illumination over long distances.
The system employs a combination structure of light guide column, soft light film, and plano-convex lens. The light guide column performs total internal reflection mixing, the soft light film further mixes the light, the plano-convex lens focuses the light to achieve small-angle light output, and the light shield removes stray light. Combined with a heat dissipation structure, the system improves light utilization efficiency.
It achieves high-brightness, small-angle light output with a beam angle of 4° to 6°, uniform light without color separation, meeting the needs of long-distance lighting, and the light is concentrated without scattering, improving the efficiency of light utilization.
Smart Images
Figure CN223499398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of floodlight technology, and in particular to a small-angle multi-color mixed-light floodlight. Background Technology
[0002] Floodlights are lighting fixtures primarily used for focused illumination. Their focused beam effect makes the illuminated area brighter and more prominent, and they are commonly used for building lighting, billboard lighting, and other applications to enhance the aesthetics of a scene. Furthermore, floodlights offer a wide range of color options, allowing users to adjust the color temperature and brightness of the light to create different atmospheres.
[0003] Currently, floodlights use mixing lenses to achieve light mixing and focusing. However, due to the limitations of their optical principles, the beam angle is limited to 40° to 50°, making it impossible to achieve small-angle light emission and providing high-brightness illumination at greater distances.
[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a small-angle multi-color mixing floodlight, which aims to solve the technical problem that the prior art cannot achieve small-angle light output.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A small-angle multi-color mixing floodlight includes a lamp body, a driver board, a light source board, a light guide column, a cover plate, and a gate-shaped bracket. The driver board and the light source board are both located inside the lamp body and are electrically connected. The light guide column is located on the light source board and is used to mix the light emitted by the light source board. The lamp body has an opening at its end, and the cover plate is located on the opening. The gate-shaped bracket is located inside the lamp body and has a diffuser film and plano-convex lenses arranged sequentially towards the cover plate on the gate-shaped bracket. The light guide column is located below the diffuser film.
[0008] Furthermore, the top of the gate-shaped bracket is provided with a first light-shielding plate with an annular structure, and the axis of the first light-shielding plate is coaxial with the axis of the plano-convex lens.
[0009] Furthermore, it also includes a second light-shielding plate, which is mounted on the drive plate via a connecting post, and the light guide post passes through the second light-shielding plate.
[0010] Furthermore, the gate-shaped bracket has adjustment grooves on both sides, and a first mounting bracket is slidably connected to the adjustment groove. The first mounting bracket is locked in position by a first screw, and the diffuser film is placed on the first mounting bracket.
[0011] Furthermore, a second mounting bracket is slidably connected to the adjustment groove, and the second mounting bracket is locked in position by a second screw. The plano-convex lens is mounted on the second mounting bracket.
[0012] Furthermore, a third light-shielding plate is connected to the second mounting bracket by a third screw, and the peripheral wall of the plano-convex lens is provided with an annular protrusion, which is located between the second mounting bracket and the third light-shielding plate.
[0013] Furthermore, the lamp body is provided with a support plate, the drive plate is disposed on the support plate, and a number of heat dissipation ribs are provided on the side of the support plate away from the drive plate, and the ends of the heat dissipation ribs are connected to the inner wall of the lamp body.
[0014] Furthermore, the lamp body has several heat dissipation holes on its peripheral wall, and the heat dissipation holes are located between two adjacent heat dissipation ribs.
[0015] Furthermore, it also includes a third mounting bracket with a U-shaped structure. The two ends of the third mounting bracket are rotatably connected to the lamp body. The end of the third mounting bracket also has a waist-shaped groove, which is connected to the lamp body by a fourth screw.
[0016] Beneficial effects:
[0017] This invention provides a small-angle multi-color mixed-light floodlight. A light guide column guides and mixes the various colors of light emitted from the light source plate, and the light is further mixed by a diffuser film to achieve the mixing of the various colors into a single desired color. When projected onto the illuminated surface, the light is uniform and colorless. The mixed light is then focused by a plano-convex lens and emitted within a small-angle illumination range, with a beam angle of 4°–6°. The light has a long range, small spot size, and high brightness, meeting the lighting needs for long-distance projection. Furthermore, by setting a first, second, and third light-shielding plate, stray light can be effectively removed, making the emitted light more concentrated. Attached Figure Description
[0018] Figure 1 Structural diagram of the small-angle multicolor mixing floodlight provided by this utility model;
[0019] Figure 2 yes Figure 1 Enlarged view of point A;
[0020] Figure 3 Main sectional view of the small-angle multicolor mixing floodlight provided by this utility model;
[0021] Figure 4 A partial structural diagram of the small-angle multicolor mixing floodlight provided by this utility model;
[0022] Figure 5 A partial exploded view of the small-angle multi-color mixed light floodlight provided by this utility model.
[0023] Reference numerals: Lamp body 1, Support plate 11, Heat dissipation fin 12, Heat dissipation hole 13, Third mounting bracket 14, Waist-shaped groove 141, Fourth screw 142, Drive plate 2, Light source plate 3, Light guide column 4, Stepped part 41, Cover plate 5, Door-shaped bracket 6, First light shield 61, Adjustment groove 62, Softening film 7, First mounting bracket 71, First mounting part 711, First slider 712, First screw 72, Plano-convex lens 8, Second mounting bracket 81, Second mounting part 811, Second slider 812, Second screw 82, Third screw 83, Third light shield 84, Through hole 841, Annular protrusion 85, Second light shield 9, Connecting column 91. Detailed Implementation
[0024] This utility model provides a small-angle multi-color mixing floodlight. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.
[0026] Please see Figures 1 to 5 As shown, this utility model provides a small-angle multi-color mixing floodlight, including a lamp body 1, a drive board 2, a light source board 3, a light guide column 4, a cover plate 5, and a gate-shaped bracket 6. The drive board 2 and the light source board 3 are both located inside the lamp body 1, and the drive board 2 is electrically connected to the light source board 3. The light guide column 4 is located on the light source board 3 and is used to mix the light emitted by the light source board 3. The end of the lamp body 1 has an opening, the cover plate 5 is located on the opening, and the gate-shaped bracket 6 is located inside the lamp body 1. The gate-shaped bracket 6 has a diffuser film 7 and a plano-convex lens 8 arranged sequentially towards the cover plate 5, and the light guide column 4 is located below the diffuser film 7.
[0027] As described above, the light source board 3 can be an RGBW light source, which can provide colorful and rich lighting effects through brightness control and color adjustment to meet different lighting needs. Optionally, the light source board 3 can also be a two-color LED light source, a three-color LED light source, or other multi-color LED light sources, and the specific light source can be determined according to actual needs.
[0028] In use, the light emitted from the light source board 3 enters the light guide column 4. The light guide column 4 utilizes the phenomenon of total internal reflection, causing the light to undergo total internal reflection within the light guide column 4, thereby achieving the purpose of focusing and mixing the light from the light source board 3, so that multi-color light is mixed into a single color light. After mixing, the light enters the diffuser film 7, which scatters and reflects the light, further mixing the light and achieving the goal of further mixing the various colors of light into a single desired color light. When projected onto the illuminated surface, the light is uniform and colorless. The mixed light enters the plano-convex lens 8, and the light is focused by the plano-convex lens 8 and emitted to achieve the effect of small-angle light emission, with a beam angle of 4° to 6°, which can meet the lighting needs of long-distance projection.
[0029] Specifically, the light guide column 4 is existing technology. The light guide column 4 includes a glass light guide column, a plastic bracket and a diffuser. When light of each color passes through the glass light guide column, it undergoes total internal reflection, so that the light of each color is mixed into a single color light. The mixed light passes through the diffuser to achieve the purpose of further mixing, so that the single color light is purer.
[0030] In a preferred embodiment, see [reference] Figure 3 , 4 The top of the portal frame 6 is provided with a first light-shielding plate 61 with an annular structure. The axis of the first light-shielding plate 61 is coaxial with the axis of the plano-convex lens 8. The first light-shielding plate 61 can remove stray light refracted from the edge of the plano-convex lens 8, ensuring that the light is more concentrated, thereby improving the utilization efficiency of the light.
[0031] In a preferred embodiment, see [reference] Figure 3 , 5 It also includes a second light-shielding plate 9, which is mounted on the drive plate 2 via a connecting post 91, and the light guide post 4 passes through the second light-shielding plate 9. Specifically, the plastic bracket has a stepped portion 41, and the second light-shielding plate 9 is located on the stepped portion 41. In actual use, most of the light emitted by the light source plate 3 enters the light guide post 4, and a small portion of the light is emitted from outside the light guide post 4. By setting the second light-shielding plate 9, the light that does not enter the light guide post 4 can be blocked, so as to avoid the light that has not been mixed affecting the light output effect.
[0032] In a preferred embodiment, see [reference] Figure 4 , 5The gate-shaped bracket 6 has adjustment slots 62 on both sides. A first mounting bracket 71 is slidably connected to the adjustment slot 62. The first mounting bracket 71 is locked in position by a first screw 72. The diffuser film 7 is mounted on the first mounting bracket 71. This configuration allows for adjustment of the installation height of the diffuser film 7. The farther the diffuser film 7 is from the light guide post 4, the more uniform the light becomes, but the less light is emitted. Therefore, the installation height of the diffuser film 7 needs to be adjusted according to actual requirements. Specifically, the first mounting bracket 71 has two symmetrically arranged first mounting portions 711. Each first mounting portion 711 has a first slider 712 slidably connected to the adjustment slot 62. The first slider 712 slides up and down along the adjustment slot 62 to limit the adjustment direction of the diffuser film 7. The first screw 72 passes through the adjustment slot 62 and is threadedly connected to the first mounting portion 711 to lock the position of the first mounting bracket 71.
[0033] Further, see Figure 4 , 5 A second mounting bracket 81 is slidably connected to the adjustment groove 62. The second mounting bracket 81 is locked in position by a second screw 82. The plano-convex lens 8 is mounted on the second mounting bracket 81. This configuration allows for adjustment of the mounting height of the plano-convex lens 8. When the plano-convex lens 8 is close to the light guide post 4, the diameter of the emitted light spot is larger, the beam angle is larger, and the output luminous flux is greater. Conversely, when the plano-convex lens 8 is far from the light guide post 4, the diameter of the light spot is smaller, the beam angle is smaller, and the output luminous flux is smaller. Therefore, the plano-convex lens 8 needs to be adjusted to a suitable position according to actual use. Specifically, the second mounting bracket 81 has two symmetrically arranged second mounting portions 811. Each second mounting portion 811 has a second slider 812 slidably connected to the adjustment groove 62. The second slider 812 slides up and down along the adjustment groove 62 to limit the adjustment direction of the plano-convex lens 8. The second screw 82 passes through the adjustment groove 62 and is threadedly connected to the second mounting portion 811 to lock the position of the second mounting bracket 81.
[0034] It should be noted that the plane of the plano-convex lens 8 is positioned close to the diffuser film 7.
[0035] Furthermore, see Figure 3 , 5 A third light-shielding plate 84 is connected to the second mounting bracket 81 by a third screw 83. The third light-shielding plate 84 has a through hole 841 through which the plano-convex lens 8 passes. The plano-convex lens 8 has an annular protrusion 85 on its peripheral wall, which is located between the second mounting bracket 81 and the third light-shielding plate 84 to achieve stable installation of the plano-convex lens 8. By setting the third light-shielding plate 84, light rays that do not pass through the plano-convex lens 8 can be blocked, so as to ensure that the emitted light rays are more concentrated and there is no scattered light.
[0036] In a preferred embodiment, see [reference] Figure 3 The lamp body 1 contains a support plate 11, on which a drive plate 2 is mounted. The drive plate 2 and the light source plate 3 are fixed to the support plate 11 with screws. The light source plate 3 is located in the middle of the drive plate 2 and is electrically connected to the drive plate 2. Several heat dissipation ribs 12 are provided on the side of the support plate 11 away from the drive plate 2. These ribs 12 are arranged in parallel, and their ends are connected to the inner wall of the lamp body 1. This arrangement allows the drive plate 2 to directly contact the support plate 11, which facilitates heat dissipation. Furthermore, the multiple heat dissipation ribs 12 effectively improve heat dissipation efficiency.
[0037] Further, see Figure 1 , 3 The lamp body 1 has a plurality of heat dissipation holes 13 on its peripheral wall. The heat dissipation holes 13 are located between two adjacent heat dissipation ribs 12. By setting the heat dissipation holes 13, the air flow inside the lamp body 1 is improved, and the heat dissipation efficiency of the drive board 2 is further improved.
[0038] In a preferred embodiment, see [reference] Figure 1 , 2 The system also includes a U-shaped third mounting bracket 14, whose two ends are rotatably connected to the lamp body 1. The end of the third mounting bracket 14 has a waist-shaped groove 141, which is connected to the lamp body 1 via a fourth screw 142. The third mounting bracket 14 ensures stable installation of the lamp body 1. During installation, rotating the lamp body 1 causes the fourth screw 142 to slide along the waist-shaped groove 141, adjusting the installation angle of the lamp body 1. After adjustment, tightening the fourth screw 142 locks the position of the lamp body 1.
[0039] In summary, this invention uses the light guide column 4 to mix the multi-color light emitted from the light source plate 3 into a single color light. Under the action of the diffuser film 7, the various light sources are further mixed into the desired single color light, making the single-color light purer and more uniform. Finally, after being focused by the plano-convex lens 8, it achieves a small-angle light output effect with a long light range, small spot size, and high brightness, meeting the lighting needs for long-distance projection. Furthermore, by setting the first light-shielding plate 61, the second light-shielding plate 9, and the third light-shielding plate 84, light that does not enter the light guide column 4 for mixing, light that does not enter the plano-convex lens 8 for focusing, and light refracted from the edge of the plano-convex lens 8 can be blocked respectively, achieving the purpose of removing stray light and making the emitted light more concentrated with no scattered light.
[0040] It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and inventive concept of this utility model, and all such substitutions or modifications should fall within the protection scope of the appended claims of this utility model.
Claims
1. A small-angle multi-color mixing floodlight, characterized in that, The lamp includes a lamp body, a driver board, a light source board, a light guide column, a cover plate, and a gate-shaped bracket. The driver board and the light source board are both located inside the lamp body and are electrically connected. The light guide column is located on the light source board and is used to mix the light emitted by the light source board. The lamp body has an opening at its end, and the cover plate is located on the opening. The gate-shaped bracket is located inside the lamp body and has a diffuser film and plano-convex lenses arranged sequentially towards the cover plate on the gate-shaped bracket. The light guide column is located below the diffuser film.
2. The small-angle multi-color mixing floodlight according to claim 1, characterized in that, The top of the portal frame is provided with a first light-shielding plate with an annular structure, and the axis of the first light-shielding plate is coaxial with the axis of the plano-convex lens.
3. The small-angle multi-color mixing floodlight according to claim 1, characterized in that, It also includes a second light-shielding plate, which is mounted on the drive plate via a connecting post, and the light guide post passes through the second light-shielding plate.
4. The small-angle multi-color mixing floodlight according to claim 1, characterized in that, The portal frame has adjustment slots on both sides, and a first mounting bracket is slidably connected to the adjustment slot. The first mounting bracket is locked in position by a first screw, and the diffuser film is placed on the first mounting bracket.
5. The small-angle multi-color mixing floodlight according to claim 4, characterized in that, A second mounting bracket is slidably connected to the adjustment groove. The second mounting bracket is locked in position by a second screw. The plano-convex lens is mounted on the second mounting bracket.
6. The small-angle multi-color mixing floodlight according to claim 5, characterized in that, A third light-shielding plate is connected to the second mounting bracket by a third screw. The plano-convex lens has an annular protrusion on its peripheral wall, which is located between the second mounting bracket and the third light-shielding plate.
7. The small-angle multi-color mixing floodlight according to claim 1, characterized in that, The lamp body is provided with a support plate, and a drive plate is provided on the support plate. The side of the support plate away from the drive plate is provided with several heat dissipation ribs, and the ends of the heat dissipation ribs are connected to the inner wall of the lamp body.
8. The small-angle multi-color mixing floodlight according to claim 7, characterized in that, The lamp body has several heat dissipation holes on its peripheral wall, and the heat dissipation holes are located between two adjacent heat dissipation ribs.
9. The small-angle multi-color mixing floodlight according to claim 1, characterized in that, It also includes a third mounting bracket with a U-shaped structure. The two ends of the third mounting bracket are rotatably connected to the lamp body. The end of the third mounting bracket also has a waist-shaped groove, which is connected to the lamp body by a fourth screw.