Compound reflector lampshade and lighting lamp
By setting reflective protrusions in the reflector cup to reflect light so that the width of the light arc corresponds to the beam angle, the problem of the light arc width and beam angle not corresponding in existing wall washer lights is solved, improving the lighting effect and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU OPPLE LIGHTING
- Filing Date
- 2022-12-29
- Publication Date
- 2026-07-10
AI Technical Summary
The existing wall washer lights have a mismatch between the beam width and the beam angle, which affects the lighting effect and user experience.
A reflective protrusion is set in the reflector cup to reflect light so that the width of the light arc corresponds to the beam angle, thereby reducing the diffusion effect of the reflector cup on the light.
This achieves a correspondence between the arc width and the beam angle, improving the lighting effect and user experience of the wall washer light.
Smart Images
Figure CN115930156B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of lighting technology, and more particularly to a composite reflector lampshade and lighting fixture. Background Technology
[0002] The beam angle refers to the angle formed between light rays located at the two edges of a light source. The smaller the beam angle, the smaller the width of the resulting light arc (the arc length corresponding to the beam angle); the larger the beam angle, the wider the resulting light arc. For most spotlights, different lighting effects are achieved by using different beam angles corresponding to different light arc widths.
[0003] However, in some wall washer lights used for architectural decorative lighting, the lampshade diffuses the emitted light, which means that the actual arc width is related to the size of the lampshade opening. The arc width and the beam angle do not correspond to each other (for example, a 24-degree beam angle and a 50-degree beam angle have the same arc width), thus affecting the lighting effect of the wall washer light and the user experience. Summary of the Invention
[0004] This invention provides a composite reflector lampshade and lighting fixture to solve the defect in the prior art where the actual arc width and beam angle of the wall washer light do not correspond, affecting the lighting effect and user experience. It realizes the correspondence between the arc width and the beam angle, thereby improving the lighting effect and user experience of the wall washer light.
[0005] This invention provides a composite reflective lampshade suitable for surrounding a light source, comprising: a lens with a bottom opening that surrounds a light-emitting area for enclosing the light source; light emitted from the light source passes through the lens in a direction away from the lens opening, and the light emitted from the light source is refracted by the lens with different beam angles to form different light arc widths corresponding to the beam angles; a reflective cup surrounding the outer periphery of the lens, the inner diameter of the reflective cup increasing along the direction of the height of the reflective cup, the bottom with the smallest inner diameter and the top with the largest inner diameter of the reflective cup being connected through, and the edge of the bottom of the reflective cup being sealed and fixedly connected to the edge of the bottom opening of the lens; the inner surface of the reflective cup is distributed with multiple sets of reflective protrusions, the surfaces of the reflective protrusions being curved to reflect the light emitted by the light source and refracted by the lens, so that the light rays passing through the lens with different beam angles respectively form different light arc widths corresponding to the beam angles.
[0006] Optionally, the reflective protrusions are scale-like protrusions, which are adjacent to each other and closely and evenly distributed on the inner surface of the reflective cup.
[0007] Optionally, multiple sets of the scale-like protrusions are distributed along the height direction of the reflector cup, and the projected area of any one of the scale-like protrusions in the plane where the height direction of the reflector cup is located is equal.
[0008] Optionally, any of the scale-like protrusions are disposed in the space between the planes where the reflector cup is located at the bottom and top of the lens.
[0009] Optionally, the reflective protrusion is a strip-shaped protrusion surrounding the inner surface of the reflective cup, and the plane of the strip-shaped protrusion is flush with the plane of the top of the reflective cup.
[0010] Optionally, multiple sets of the strip-shaped protrusions are distributed along the height direction of the reflector cup, and the projected area of any one of the strip-shaped protrusions on the plane where the height direction of the reflector cup is located is equal.
[0011] Optionally, any of the strip-shaped protrusions is disposed in the space between the top of the reflector cup and the plane containing the top of the lens.
[0012] Optionally, the thickness of any of the aforementioned reflective protrusions is 1 mm to 2 mm, and the radius of curvature of any of the aforementioned reflective protrusions is 10 mm to 50 mm.
[0013] Optionally, a light shield is also included, which is coaxially connected to one side of the reflector cup outside the top, and the light shield is in communication with the reflector cup.
[0014] This invention also provides a lighting fixture, comprising: a light source, a lamp holder, and the composite reflective lampshade; the composite reflective lampshade is mounted on the lamp holder, the light source is located in the light-emitting area, and the light emitted by the light source passes through the lenses with different beam angles and is reflected by the reflective protrusions, thereby forming different light arc widths corresponding to the beam angles.
[0015] This invention provides a composite reflector lampshade and lighting fixture. By incorporating reflective protrusions within the reflector cup, light emitted from the light source is reflected upon encountering these protrusions, significantly reducing the light diffusion effect of the reflector cup. This ensures that the width of the reflected light arc corresponds to the original beam angle of the lens, unaffected by the size of the reflector cup opening. This solves the problem in existing wall washer lights where the actual arc width and beam angle do not correspond, impacting lighting effects and user experience. It achieves a direct correspondence between the arc width and beam angle, improving the lighting effect and user experience of the wall washer light. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in this 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 some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a cross-sectional schematic diagram of a certain embodiment of the composite reflective lampshade provided by the present invention (continuous arrows indicate light rays);
[0018] Figure 2 yes Figure 1 A magnified view of a portion of the image;
[0019] Figure 3 This is a cross-sectional schematic diagram of another embodiment of the composite reflective lampshade provided by the present invention (continuous arrows indicate light rays);
[0020] Figure 4 yes Figure 3 A magnified view of a portion of the image;
[0021] Figure 5 This is a cross-sectional schematic diagram of the overall structure of the composite reflective lampshade provided by the present invention (continuous arrows indicate light rays);
[0022] Figure 6 This is a cross-sectional schematic diagram of the overall structure of the lighting fixture provided by the present invention (continuous arrows represent light rays).
[0023] Figure label:
[0024] 1. Composite reflector lampshade; 10. Lens; 100. Light-emitting area; 20. Reflector cup; 200. Scale-like protrusions; 210. Strip-like protrusions; 30. Light shield; 2. Lamp holder. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this embodiment clearer, the technical solutions of this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, not all embodiments. Based on this embodiment, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this embodiment.
[0026] The following is combined with Figures 1-5 This embodiment describes a composite reflector lampshade. The composite reflector lampshade 1 of this embodiment is suitable for decorative lighting fixtures such as wall washer lights and recessed spotlights.
[0027] See Figure 1This embodiment provides a composite reflective lampshade 1, which is suitable for surrounding the light source and includes a lens 10 and a reflective cup 20.
[0028] Specifically, the bottom of the lens 10 is open and surrounds a light-emitting area 100 for housing a light source. Light emitted from the light source passes through the lens 10 in a direction away from the opening, and the light emitted from the light source is refracted by the lens 10 with different beam angles to form different light arc widths corresponding to the beam angles. A reflector cup 20 is disposed around the outer periphery of the lens 10. The inner diameter of the reflector cup 20 increases in the direction of increasing height of the reflector cup 20. The bottom of the reflector cup 20 with the smallest inner diameter and the top with the largest inner diameter are connected in a continuous manner, and the edge of the bottom of the reflector cup 20 is sealed and fixedly connected to the edge of the bottom opening of the lens 10.
[0029] In some embodiments, the reflector cup 20 is a hollow cylindrical cup, and the lens 10 is a bowl-shaped object with its opening facing downwards and is placed upside down on the bottom of the reflector cup 20; the lens 10 can be fixed to the bottom of the reflector cup 20 by integral molding, thereby forming a complete optical element together with the reflector cup 20.
[0030] See Figure 1 and Figure 2 The inner surface of the reflector cup 20 is distributed with multiple sets of reflective protrusions. The surfaces of the reflective protrusions are curved to reflect the light emitted by the light source and refracted by the lens 10, so that the light rays passing through the lens 10 with different beam angles form different light arc widths corresponding to the beam angles.
[0031] In practical applications, the reflector cup 20 and lens 10 are integrally molded, and multiple sets of reflective protrusions are set in the reflector cup 20. This ensures that the light emitted by the light source is reflected upon encountering these protrusions, greatly reducing the light diffusion effect of the reflector cup 20. This results in the arc width of the reflected light corresponding to the original beam angle of the lens 10, without being affected by the size of the opening of the reflector cup 20. This solves the problem in existing wall washer lights where the actual arc width and beam angle do not correspond, affecting lighting effects and user experience. It achieves a direct correspondence between the arc width and beam angle, improving the lighting effect and user experience of the wall washer light.
[0032] See Figures 1 to 4 In order to ensure that the light refracted by the lens 10 is fully reflected, the shape of the reflective protrusion and its height position in the reflective cup 20 correspond to the beam angle of the lens 10.
[0033] See Figure 1 and Figure 2In some specific embodiments, for a lens 10 with a large beam angle (e.g., an obtuse angle of 120 degrees), the reflective protrusions are scale-like protrusions 200 that are adjacent to each other and closely and evenly distributed on the inner surface of the reflector cup 20. There are multiple sets of scale-like protrusions 200, distributed along the height direction of the reflector cup 20. The projected area of any set of scale-like protrusions 200 on the plane containing the height direction of the reflector cup 20 is equal, and each set of scale-like protrusions 200 is located in the space between the bottom and top planes of the reflector cup 20 containing the lens 10. In this embodiment, each scale-like protrusion 200 occupies an equal area on the reflector cup 20.
[0034] With this configuration, the light refracted by the lens 10 with a large beam angle travels closer to the bottom of the reflector cup 20. Therefore, multiple sets of densely arranged scale-like protrusions 200 are placed near the bottom of the reflector cup 20 to create a better reflection effect.
[0035] See Figure 3 and Figure 4 In some specific embodiments, for a lens 10 with a small beam angle (e.g., a 70-degree acute angle), the reflective protrusion is a strip-shaped protrusion 210 surrounding the inner surface of the reflector cup 20, and the plane of the strip-shaped protrusion 210 is flush with the plane of the top of the reflector cup 20. There are multiple sets of strip-shaped protrusions 210, distributed along the height direction of the reflector cup 20. The projected area of any strip-shaped protrusion 210 on the plane of the height direction of the reflector cup 20 is equal, and each strip-shaped protrusion 210 is located in the space between the top of the reflector cup 20 and the plane of the top of the lens 10. In this embodiment, each strip-shaped protrusion 210 occupies an equal area on the reflector cup 20, and each strip-shaped protrusion 210 has an equal length.
[0036] With this configuration, the light refracted by the lens 10 with a smaller beam angle travels closer to the top opening of the reflector cup 20. Therefore, multiple sets of strip-shaped protrusions 210 are placed near the top of the reflector cup 20 to create a better reflection effect.
[0037] It is not difficult to see that for the composite reflective lampshade 1 in this embodiment, the width of the light arc corresponds to the size of the beam angle of the lens 10: the larger the beam angle, the larger the width of the light arc; the smaller the beam angle, the smaller the width of the light arc.
[0038] See Figure 2 and Figure 4Each reflective protrusion has a thickness of 1 to 2 millimeters and a radius of curvature of 10 to 50 millimeters. This configuration, by setting the reflective protrusions as reflective "microstructures" with small thickness and radius of curvature—whether scale-like protrusions 200 or strip-like protrusions 210—not only achieves good light reflection but also occupies a small area and space within the reflector cup 20, reducing the manufacturing cost of the lampshade.
[0039] See Figure 5 The composite reflective lampshade 1 in this embodiment also includes a light shield 30, which is coaxially connected to one side of the reflector cup 20, excluding the top, and is in communication with the reflector cup 20. In this embodiment, by setting a reference object on the light shield 30, the width of the light arc can be defined more intuitively and clearly. Specifically, the angle between two reflected light rays that are cut off by the opening edge of the light shield 30 and are located on the same plane is the light arc angle, the distance from the intersection of the two reflected light rays to the opening edge of the light shield 30 is the light arc radius, and the light arc width is the product of the light arc angle and the light arc radius.
[0040] In summary, by adopting the above technical solution, multiple sets of reflective protrusions are set in the reflector cup 20, and scale-like protrusions 200 or strip-like protrusions 210 are respectively set according to the beam angle of the lens 10. The light emitted by the light source is refracted by the lens 10 and then reflected by the reflective protrusions, greatly reducing the light diffusion effect of the reflector cup 20. This ensures that the width of the reflected light arc corresponds to the original beam angle of the lens 10, without being affected by the size of the opening of the reflector cup 20. This solves the defect in the prior art where the actual arc width and beam angle of the wall washer light do not correspond, affecting the lighting effect and user experience. It achieves a correspondence between the arc width and beam angle, improving the lighting effect and user experience of the wall washer light.
[0041] See Figure 6 This embodiment also provides a lighting fixture, including a light source, a lamp holder 2, and the aforementioned composite reflector lampshade 1.
[0042] Specifically, the composite reflector lampshade 1 is mounted on the lamp holder 2, the light source is located in the light-emitting area 100, and the light emitted by the light source passes through lenses 10 with different beam angles and is reflected by the reflective protrusions, thereby forming different light arc widths corresponding to the beam angles. The lighting fixture of this embodiment has all the advantages of the composite reflector lampshade 1 described above, which will not be repeated here.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate technical solutions and are not intended to limit them. Although detailed descriptions have been made 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.
Claims
1. A composite reflective lampshade, suitable for surrounding a light source, characterized in that, include: The lens (10) has an opening at the bottom and surrounds a light-emitting area (100) for embracing the light source. The light emitted by the light source passes through the lens (10) in a direction away from the opening of the lens (10), and the light emitted by the light source is refracted by the lens (10) with different beam angles to form different light arc widths corresponding to the beam angles. A reflector cup (20) is arranged around the outer periphery of the lens (10). The inner diameter of the reflector cup (20) increases in the direction of increasing height of the reflector cup (20). The bottom with the smallest inner diameter of the reflector cup (20) and the top with the largest inner diameter are connected in a through manner. The edge of the bottom of the reflector cup (20) is sealed and fixedly connected to the edge of the bottom opening of the lens (10). The inner surface of the reflector cup (20) is distributed with multiple sets of reflective protrusions. The surfaces of the reflective protrusions are curved to reflect the light emitted by the light source and refracted by the lens (10), so that the light rays passing through the lens (10) with different beam angles form different light arc widths corresponding to the beam angles. The shape of the reflective protrusion and its height position in the reflective cup (20) correspond to the beam angle of the lens (10); for the lens (10) with a large beam angle and a small beam angle, the reflective protrusion is distributed in different height ranges of the reflective cup (20); the reflective protrusion is a scale-like protrusion (200) or a strip-like protrusion (210), and the light emitted by the light source is reflected after encountering the reflective protrusion, so that the width of the light arc after reflection corresponds to the original beam angle of the lens (10).
2. The composite reflective lampshade according to claim 1, characterized in that, The reflective protrusions are scale-like protrusions (200), which are adjacent to each other and evenly distributed on the inner surface of the reflective cup (20).
3. The composite reflective lampshade according to claim 2, characterized in that, Multiple sets of the scale-like protrusions (200) are distributed along the height direction of the reflector cup (20), and the projected area of any set of the scale-like protrusions (200) in the plane where the height direction of the reflector cup (20) is located is equal.
4. The composite reflective lampshade according to claim 3, characterized in that, Each of the scale-like protrusions (200) is disposed in the space between the bottom and top planes of the reflector cup (20) and the lens (10).
5. The composite reflective lampshade according to claim 1, characterized in that, The reflective protrusion is a strip-shaped protrusion (210) that is arranged around the inner surface of the reflective cup (20), and the plane of the strip-shaped protrusion (210) is flush with the plane of the top of the reflective cup (20).
6. The composite reflective lampshade according to claim 5, characterized in that, Multiple sets of the strip-shaped protrusions (210) are distributed along the height direction of the reflector cup (20), and the projected area of any strip-shaped protrusion (210) in the plane where the height direction of the reflector cup (20) is located is equal.
7. The composite reflective lampshade according to claim 6, characterized in that, Each of the strip-shaped protrusions (210) is disposed in the space between the top of the reflector cup (20) and the top of the lens (10).
8. The composite reflective lampshade according to any one of claims 1-7, characterized in that, The thickness of any of the aforementioned reflective protrusions is 1 mm to 2 mm, and the radius of curvature of any of the aforementioned reflective protrusions is 10 mm to 50 mm.
9. The composite reflective lampshade according to claim 8, characterized in that, It also includes a light shield (30), which is coaxially connected to one side of the reflector cup (20) outside the top, and the light shield (30) is in communication with the reflector cup (20).
10. A lighting fixture, characterized in that, include: The light source, the lamp holder (2), and the composite reflective lampshade as described in any one of claims 1-9; The composite reflective lampshade is installed on the lamp holder (2), the light source is located in the light-emitting area (100), and the light emitted by the light source passes through the lens (10) with different beam angles and is reflected by the reflective protrusion, thereby forming different light arc widths corresponding to the beam angles.