Anti-dazzle spotlight and lighting device
By setting a convex lens and reflective cup combination structure with light mixing patterns in the spotlight, the problem of uneven light spots in traditional spotlights is solved, uniform mixing of light spots and reduction of glare effects are achieved, optical efficiency is improved and service life is extended.
Patent Information
- Application Number
- CN202422638113.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The light emitted by traditional spotlights is prone to cause glare, especially the smart dimming and color adjustment spotlights, which find it difficult to evenly mix the light spots produced by the dual-color temperature light sources, resulting in color separation, yellow spots, stratification and other problems in the light spots.
The combined structure of a heat sink, light source, convex lens and reflector is adopted. A convex lens with light-mixing patterns is arranged between the light source and the reflector. After light mixing and control by the convex lens, the light is dispersed onto the reflective concave surface of the reflector. After being reflected by the reflective concave surface, it is transmitted to the light outlet of the heat sink. At the same time, a light extinction structure is arranged on the inner ring to absorb large-angle stray light and reduce the light directly reflected into the observer's eyes.
It achieves uniform mixing of light spots, reduces glare effects, improves optical efficiency, extends the service life of spotlights, and maintains good light effects.
Smart Images
Figure CN223345213U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of lamps, and in particular to an anti-glare spotlight and a lighting device. Background Art
[0002] The light emitted by the light source of traditional lamps can be easily observed by users and directly enter the human eye, causing users to experience discomfort such as glare and easily causing visual fatigue.
[0003] To address this issue, current spotlights on the market shine their light source directly onto a reflector, which then reflects the light and then emits it outward, illuminating the object. However, the reflector is not sufficient to completely mix the light emitted by the light source, especially when the spotlight is a smart dimming and color adjustment model with a dual-color temperature light source. This makes it even more difficult to evenly mix the light spot produced by the dual-color temperature light source, resulting in color separation, yellow spots, and layered light spots.
[0004] In summary, how to improve the lighting effect of spotlights is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0005] The purpose of this application is to provide an anti-glare spotlight and a lighting device to improve the lighting effect of the spotlight.
[0006] In order to achieve the above objectives, the technical solutions adopted in this application are as follows:
[0007] On the one hand, the present application provides an anti-glare spotlight, comprising: a heat sink, a light source, a convex lens, and a reflector cup; the heat sink is a ring-shaped structure with one end sealed and the other end provided with a light outlet; the light source, convex lens, and reflector cup are all located inside the heat sink, and a bracket is laterally provided on the inner wall of the heat sink; the light source is located at the bottom of the bracket, the convex lens is located below the light source and fixed to the bottom of the bracket, the convex surface of the convex lens is away from the light source, and the inner cavity of the convex lens is provided with light mixing patterns; the reflector cup is located at the bottom of the heat sink, and the reflective concave surface of the reflector cup faces the light-emitting surface of the light source;
[0008] The light emitted by the light source is dispersed onto the reflective concave surface of the reflective cup through the convex lens with light-mixing patterns, and is reflected by the reflective concave surface and then propagated to the light outlet of the radiator.
[0009] Furthermore, the anti-glare spotlight also includes an inner ring, the heat sink is sleeved on the outer wall of the inner ring, and the inner ring is located above the bracket; a plurality of extinction structures are arranged around the inner wall of the inner ring near the bracket.
[0010] Furthermore, the light mixing texture is a beaded surface with Fermat spiral distribution or a frosted texture with Gaussian scattering properties.
[0011] Furthermore, the convex lens is a plano-convex lens or a television lens.
[0012] Furthermore, the light source and the convex lens both correspond to the focal position of the reflective cup.
[0013] Furthermore, the focal length of the reflective cup is 10 to 15 mm, and the shading angle is 30 to 40 degrees.
[0014] Furthermore, the reflective concave surface is composed of a plurality of grid-like arc surface structures.
[0015] Furthermore, the radiator and the bracket are integrally formed.
[0016] Furthermore, the bracket is a three-pointed star-shaped bracket, and the light source is arranged at the bottom of the center of the three-pointed star-shaped bracket.
[0017] On the other hand, the present application further provides a lighting device, which includes the anti-glare spotlight as described in any of the aforementioned embodiments.
[0018] Compared with the prior art, this application has the following beneficial effects:
[0019] The present application provides an anti-glare spotlight and lighting device, comprising a heat sink, a light source, a convex lens, and a reflective cup. By placing a convex lens with light-mixing patterns between the light source and the reflective cup, the light emitted by the light source is dispersed onto the reflective concave surface of the reflective cup after light mixing and control by the convex lens, and then reflected by the reflective concave surface and propagated to the light outlet of the heat sink. The convex lens and the reflective cup cooperate to enhance the control and mixing capabilities of light. Even when the light source is a dual-color temperature model, the light spots can be evenly mixed without visually visible color separation or light spot stratification. Furthermore, because the light can be controlled, the optical efficiency is significantly improved.
[0020] Furthermore, the multiple extinction structures absorb wide-angle stray light, effectively scattering it and reducing the amount of light directly reflected into the viewer's eyes, thereby reducing glare. Furthermore, the extinction structures alter the light's propagation path, helping to control the angle of the beam, allowing more light to be extracted from the source and improving light utilization efficiency. The three-pronged star-shaped bracket, integrated with the heat sink, enhances heat dissipation, extending the lifespan of the anti-glare spotlight while maintaining excellent light quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0022] Figure 1 A schematic structural diagram of an anti-glare spotlight provided in this application;
[0023] Figure 2 This is one of the cross-sectional schematic diagrams of an anti-glare spotlight provided in this application;
[0024] Figure 3 A schematic cross-sectional view of a television lens provided in this application;
[0025] Figure 4 A schematic cross-sectional view of a plano-convex lens provided in this application;
[0026] Figure 5 A schematic diagram of a light emitting path of a light source in the prior art;
[0027] Figure 6 A schematic diagram of the light emission path of a light source using the television lens provided by this application;
[0028] Figure 7 A schematic diagram of the light emission path of a light source using the plano-convex lens provided in this application;
[0029] Figure 8 This is a second cross-sectional schematic diagram of an anti-glare spotlight provided in this application;
[0030] Figure 9 This is a top view of an anti-glare spotlight provided in this application.
[0031] Reference numerals: 10 - anti-glare spotlight; 100 - radiator; 110 - bracket; 200 - light source; 300 - convex lens; 400 - reflective cup; 500 - inner ring; 510 - matte structure. DETAILED DESCRIPTION
[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work fall within the scope of protection of the present application.
[0034] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. At the same time, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "connected" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0035] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. The following embodiments and features thereof may be combined with each other unless there is any conflict.
[0036] As mentioned in the technical background, conventional spotlights shine directly onto a reflector, where the light is reflected and then emitted outward to illuminate the object. However, the reflector is not sufficient to fully mix the light emitted by the light source. This is especially true for spotlights with intelligent dimming and color adjustment and dual-color temperature light sources. Evenly mixing the light spot produced by the dual-color temperature light source is difficult, resulting in color separation, yellow spots, and layered light spots.
[0037] Therefore, how to improve the lighting effect of spotlights is a technical problem that needs to be solved urgently by those skilled in the art.
[0038] To solve the above technical problems, please refer to Figure 1 and Figure 2 The embodiment of the present application provides an anti-glare spotlight 10 , including: a heat sink 100 , a light source 200 , a convex lens 300 and a reflective cup 400 .
[0039] The heat sink 100 is a ring-shaped structure with one end sealed and the other end provided with a light outlet. The light source 200, the convex lens 300 and the reflective cup 400 are all located inside the heat sink 100.
[0040] To secure the light source 200 within the heat sink 100, in this embodiment of the present application, a bracket 110 is disposed transversely on the inner wall of the heat sink 100. The light source 200 is disposed at the bottom of the bracket 110, and the convex lens 300 is disposed below the light source 200 and secured to the bottom of the bracket 110. The convex surface of the convex lens 300 is positioned away from the light source 200, and the inner cavity of the convex lens 300 is provided with a light-mixing pattern.
[0041] The reflective cup 400 is located at the bottom of the heat sink 100 , and the reflective concave surface of the reflective cup 400 faces the light-emitting surface of the light source 200 .
[0042] Based on the above design, the light emitted by the light source 200 is mixed and controlled by the convex lens 300 and then dispersed onto the reflective concave surface of the reflective cup 400 , and then reflected by the reflective concave surface and propagated to the light outlet of the heat sink 100 .
[0043] By placing a convex lens 300 with light-mixing patterns between the light source 200 and the reflector 400, the convex lens 300 and reflector 400 enhance light control and mixing capabilities. Even when the light source 200 is a dual-color temperature model, the light spots are evenly mixed, eliminating visible color separation or stratification. Because the light is controllable, optical efficiency is increased by over 10%.
[0044] In order to reduce unnecessary reflection and scattered light and further improve the lighting effect, in the embodiment of the present application, the anti-glare spotlight 10 further includes an inner ring 500. The heat sink 100 is sleeved on the outer wall of the inner ring 500, and the inner ring 500 is located above the bracket 110.
[0045] Furthermore, a plurality of matte structures 510 are arranged around the inner wall of the inner ring 500 near the bracket 110. Optionally, the matte structures 510 can be black micro-ribbed stripes.
[0046] The extinction structure 510 absorbs wide-angle stray light, effectively scattering it and reducing the amount of light directly reflected into the viewer's eyes, thereby reducing glare. By scattering light, the extinction structure 510 distributes the light emitted by the light source 200 more evenly across the entire illuminated area, avoiding noticeable bright spots or dark areas and improving lighting quality. Furthermore, the extinction structure 510 alters the light propagation path, helping to control the angle of the light beam, allowing more light to be extracted from the light source 200 and improving light utilization efficiency.
[0047] As an optional embodiment, the light-mixing pattern within the inner cavity of the convex lens 300 is a beaded surface with a Fermat spiral distribution. Specifically, the inner surface of the convex lens 300 is composed of a series of small beads or microstructures arranged in an orderly fashion like a Fermat spiral. This orderly geometric arrangement creates a specific scattering pattern, thereby enhancing light mixing. Even when the light source 200 is a dual-color temperature model, the light spots are uniformly mixed, with no visible color separation or stratification, thus reducing glare.
[0048] As another optional embodiment, the light-mixing pattern in the inner cavity of the convex lens 300 is a frosted pattern with Gaussian scattering properties, which has its own Fresnel loss. Gaussian scattering means that when light passes through the surface of the convex lens 300, its scattering angle follows a Gaussian distribution. This means that most of the light will be scattered within a central angle range, while a small amount of light will be scattered within a wider angle range. This scattering pattern can produce a soft and uniform lighting effect, avoiding the strong glare caused by direct reflection. By providing a frosted pattern with Gaussian scattering properties in the inner cavity of the convex lens 300, the light can be scattered more evenly, thereby providing more uniform lighting. By destroying the mirror reflection path of the light through the frosted pattern, the glare effect can be significantly reduced.
[0049] See below Figure 3 and Figure 4 , the embodiment of the present application provides two types of convex lenses 300. For example, the convex lens 300 can be Figure 3 The TV lens (TV Lens) shown in FIG. 3 is a convex lens 300, wherein the center of the convex surface of the convex lens 300 is partially recessed inward. The convex lens 300 can also be Figure 4 The plano-convex lens shown, ie, convex lens 300, has a flat surface on one side and a convex surface on the other side.
[0050] It should be noted that the embodiments of the present application do not limit the specific shapes of the light mixing patterns and the convex lens 300 .
[0051] Based on the above design, please refer to the following Figures 5 to 7 .in, Figure 5This is a schematic diagram of the light path of a light source in the prior art. As can be seen, because the light emitted by the prior art light source directly hits the reflector, the reflector is not sufficient to completely mix the light emitted by the light source, and its light control ability is weak. As a result, part of the light emitted by the light source is blocked by the intermediate light source module and the bracket, and the resulting light spot has problems such as color separation, yellow spots, and layering.
[0052] Figure 6 This is a schematic diagram of the light path of the light source using the television lens provided by this application. Figure 7 This is a schematic diagram of the light path of a light source using the plano-convex lens provided by this application. It can be seen that both the TV lens and the plano-convex lens can better control the mixing of light emitted by the light source, allowing the light to avoid being blocked by the intermediate light source module and the bracket. Compared with the existing technology, more light can be emitted, greatly improving the lighting effect.
[0053] To further reduce light obstruction, see Figure 8 In the embodiment of the present application, the light source 200 and the convex lens 300 both correspond to the focal position of the reflective cup 400, the diameter of the convex lens 300 is 8 to 12 mm, the focal length a of the reflective cup 400 is 10 to 15 mm, and the shading angle b is 30 to 40 degrees.
[0054] Optionally, the diameter of the convex lens 300 is 10 mm, the focal length a of the reflective cup 400 is 12 mm, and the shielding angle b is 35 degrees.
[0055] Furthermore, the reflective concave surface of the reflective cup 400 is composed of a plurality of grid-like arc surface structures.
[0056] By setting the position and size of the convex lens 300 and the reflective cup 400, light can be controlled more accurately and efficiently, large-angle stray light can be reduced, outgoing light can be blocked as little as possible, light spot stratification can be reduced, and light efficiency can be improved.
[0057] In addition, since the anti-glare spotlight 10 generates heat during operation, if the heat cannot be dissipated in time, it may cause the LED chip and other electronic components to overheat, thereby causing permanent damage. Moreover, excessive temperature may also lead to a decrease in light efficiency.
[0058] In order to improve the life and lighting effect of the anti-glare spotlight 10, please refer to Figure 9 In the embodiment of the present application, the heat sink 100 and the bracket 110 are integrally formed. In addition, the heat sink 100 and the bracket 110 may be made of copper alloy.
[0059] Since the light source 200 is fixed to the bottom of the bracket 110, and the bracket 110 and the heat sink 100 are integrally formed, the heat generated by the light source 200 when working can be transferred to the heat sink 100 through the bracket 110, and the heat can be quickly transferred to the external environment through the heat sink 100, thereby protecting the internal components and driving circuits of the anti-glare spotlight 10.
[0060] In order to further improve the heat dissipation effect, in a feasible embodiment, the bracket 110 is a three-pointed star bracket, and the light source 200 is arranged at the bottom of the center of the three-pointed star bracket.
[0061] Compared to traditional single-sided brackets, the three-pronged star bracket offers exceptional stability, effectively preventing the lamp from shaking or tilting during use. Furthermore, the three-pronged design distributes the light source more evenly across the space, providing a wider illumination range and more uniform light coverage. Finally, the three-pronged star structure increases the heat dissipation area, helping to improve the lamp's heat dissipation efficiency, thereby extending the lifespan of the anti-glare spotlight and maintaining excellent light quality.
[0062] Furthermore, an embodiment of the present application also provides a lighting device, which includes the anti-glare spotlight 10 as described in any of the aforementioned embodiments.
[0063] In summary, the embodiments of the present application provide an anti-glare spotlight and lighting device, comprising: a heat sink, a light source, a convex lens, and a reflective cup. The heat sink is a ring-shaped structure with one end sealed and the other end provided with a light outlet. The light source, the convex lens, and the reflective cup are all located inside the heat sink, and a bracket is laterally provided on the inner wall of the heat sink. The light source is located at the bottom of the bracket, the convex lens is located below the light source and fixed to the bottom of the bracket, the convex surface of the convex lens is away from the light source, and the inner cavity of the convex lens is provided with a light-mixing pattern. The reflective cup is located at the bottom of the heat sink, and the reflective concave surface of the reflective cup faces the light-emitting surface of the light source. The light emitted by the light source passes through the convex lens with the light-mixing pattern and is dispersed onto the reflective concave surface of the reflective cup, and is reflected by the reflective concave surface and propagates to the light outlet of the heat sink.
[0064] By placing a convex lens with light-mixing patterns between the light source and the reflector, light from the light source is dispersed onto the reflective concave surface of the reflector after mixing and control by the convex lens. This reflection propagates through the concave surface and then propagates to the light outlet of the heat sink. The convex lens and reflector work together to enhance light control and mixing capabilities. Even when using a dual-color temperature light source, the light spot is uniformly mixed, eliminating visible color separation or stratification. This controllable light improves optical efficiency by over 10%.
[0065] Furthermore, the multiple extinction structures absorb wide-angle stray light, effectively scattering it and reducing the amount of light directly reflected into the viewer's eyes, thereby reducing glare. Furthermore, the extinction structures alter the light's propagation path, helping to control the angle of the beam, allowing more light to be extracted from the source and improving light utilization efficiency. The three-pronged star-shaped bracket, integrated with the heat sink, enhances heat dissipation, extending the lifespan of the anti-glare spotlight while maintaining excellent light quality.
[0066] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
[0067] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. An anti-glare spotlight, characterized in that: include: A heat sink, a light source, a convex lens, and a reflective cup; the heat sink is a ring-shaped structure with one end sealed and the other end provided with a light outlet; the light source, convex lens, and reflective cup are all located inside the heat sink, and a bracket is laterally provided on the inner wall of the heat sink; the light source is located at the bottom of the bracket, the convex lens is located below the light source and fixed to the bottom of the bracket, the convex surface of the convex lens is away from the light source, and the inner cavity of the convex lens is provided with light-mixing patterns; the reflective cup is located at the bottom of the heat sink, and the reflective concave surface of the reflective cup faces the light-emitting surface of the light source; The light emitted by the light source is dispersed onto the reflective concave surface of the reflective cup through the convex lens with light-mixing patterns, and is reflected by the reflective concave surface and then propagated to the light outlet of the radiator.
2. The anti-glare spotlight according to claim 1, characterized in that: The anti-glare spotlight further comprises an inner ring, the heat sink is sleeved on the outer wall of the inner ring, and the inner ring is located above the bracket; a plurality of extinction structures are arranged around the inner wall of the inner ring near the bracket.
3. The anti-glare spotlight according to claim 1, characterized in that: The light-mixing texture is a beaded surface with a Fermat spiral distribution or a frosted texture with Gaussian scattering properties.
4. The anti-glare spotlight according to claim 1, characterized in that: The convex lens is a plano-convex lens or a television lens.
5. The anti-glare spotlight according to claim 1, characterized in that: The light source and the convex lens both correspond to the focal position of the reflective cup.
6. The anti-glare spotlight according to claim 1, characterized in that: The focal length of the reflective cup is 10 to 15 mm, and the shading angle is 30 to 40 degrees.
7. The anti-glare spotlight according to claim 1, characterized in that: The reflective concave surface is composed of a plurality of grid-like arc surface structures.
8. The anti-glare spotlight according to claim 1, characterized in that: The radiator and the bracket are integrally formed.
9. The anti-glare spotlight according to claim 1, characterized in that: The bracket is a three-pronged star-shaped bracket, and the light source is arranged at the bottom of the center of the three-pronged star-shaped bracket.
10. A lighting device, characterized in that: The lighting device comprises the anti-glare spotlight according to any one of claims 1 to 9.