Lens unit and wall washing lamp

Abstract

The utility model discloses a lens unit and a wall washer lamp, and relates to the technical field of lenses, the lens unit comprises a lens support, a lens containing cavity is formed in the lens support, and the lens support comprises a supporting support and a light emitting support connected with the supporting support; the first lens is arranged in the lens support, and a light source containing cavity is formed in the bottom of the first lens; the first lens comprises a light-emitting surface, at least one bead surface microstructure is arranged on the light-emitting surface, the light-emitting support comprises a light-emitting layer, light-emitting holes corresponding to the bead surface microstructures are formed in the light-emitting layer, the bead surface microstructures and the corresponding light-emitting holes are the same in shape, and the central axes of the bead surface microstructures and the corresponding light-emitting holes are located on the same straight line. According to the LED lens, the bead surface microstructure is arranged on the light emitting surface of the lens, and the light emitting hole which corresponds to the bead surface microstructure and is used for emitting light is formed in the light emitting support, so that the problems that the anti-dazzle effect is poor and the light spot uniformity is poor due to the fact that only one LED lens is arranged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lenses, in particular to a lens unit and a wall washer lamp. Background Technique

[0002] An LED lens is an optical accessory closely associated with an LED, used to improve the light output efficiency of the LED and change the light field distribution of the LED.

[0003] Chinese Patent No. CN218154018U discloses an LED lens and an LED lighting fixture, which includes: a lens body, a first light-transmitting part is formed on the outer surface of the lens body, a light-concentrating structure is formed in the middle of the inner surface of the lens body, and the first light-transmitting part is formed by connecting a number of hexagonal bead surfaces to each other. It uses a resource-saving design, and the materials are thin and light, saving materials to the greatest extent.

[0004] However, if only one LED lens is provided, its anti-glare effect is not good, and the spot uniformity is not good.

[0005] Therefore, it is urgently necessary to develop a lens unit and a wall washer lamp to solve the problems in the prior art. Content of the Utility Model

[0006] The purpose of the utility model is to provide a lens unit and a wall washer lamp. By providing a bead surface microstructure on the light-emitting surface of the lens and providing a light-emitting hole corresponding to the bead surface microstructure on the light-emitting support for emitting light, the problem of poor anti-glare effect and poor spot uniformity caused by only setting one LED lens as mentioned in the above background technique is solved.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A lens unit, comprising:

[0009] A lens support, a lens accommodation cavity is arranged inside the lens support, and the lens support includes a support bracket and a light-emitting support connected to the support bracket;

[0010] A first lens, the first lens is arranged inside the lens support, and a light source accommodation cavity is arranged at the bottom of the first lens;

[0011] The first lens includes a light-emitting surface, at least one bead surface microstructure is arranged on the light-emitting surface, the light-emitting support includes a light-emitting layer, and a light-emitting hole corresponding to the bead surface microstructure is arranged on the light-emitting layer. The bead surface microstructure and the corresponding light-emitting hole have the same shape and their central axes are on the same straight line.

[0012] Further, the bead surface microstructure is a hexagonal bead surface, and the light-emitting hole is a hexagonal through hole.

[0013] Furthermore, the light-emitting angle of the hexagonal bead surface is less than 5°.

[0014] Furthermore, a clamping plate is provided on the inner wall of the support bracket, and more than one clamping plate is provided. The clamping plate is gradually inclined towards the central axis direction of the support bracket from top to bottom.

[0015] Furthermore, a flat lens is provided between the first lens and the light-emitting bracket.

[0016] Furthermore, the upper surface and the lower surface of the flat lens are both flat and parallel to each other.

[0017] Furthermore, the distance between the flat lens and the light-emitting bracket is less than 1 mm.

[0018] Furthermore, a clamping plate is provided on the inner wall of the support bracket, and more than one clamping plate is provided. The clamping plate is gradually inclined towards the central axis direction of the support bracket from top to bottom; a fixing structure for fixing the flat lens is further provided on the clamping plate, and the fixing structure cooperates with the side wall of the flat lens to fix the flat lens.

[0019] Furthermore, the light-emitting bracket further includes a connecting portion, the connecting portion is provided outside the light-emitting layer, and the connecting portion is in interference fit with the outer wall of the support bracket;

[0020] The light-emitting bracket further includes an abutting portion, the abutting portion is provided between the light-emitting layer and the connecting portion, and the abutting portion is in abutting cooperation with the side wall of the support bracket.

[0021] A wall washer light includes the lens unit described above.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a light-emitting hole structure corresponding to the bead surface microstructure on the light-emitting bracket, the light emitted through the bead surface microstructure can be better integrated and managed, making the light beam corresponding to each through hole more uniform, thereby improving the uniformity of the light spot as a whole. Since the through holes of the light-emitting bracket are consistent with the shape and position of the bead surface microstructure, the bright areas and dark areas formed due to uneven light scattering can be minimized, ensuring that the light is softly and evenly distributed over the entire lighting area. At the same time, the unified glare rating of the lighting device can also be significantly reduced, providing a more comfortable lighting environment.

[0023] At the same time, by providing a hexagonal bead surface microstructure in this application, the light can form a more uniform brightness distribution when passing through the lens, thereby improving the clarity and sharpness of optical perception and making the image more real and natural; at the same time, the hexagonal microstructure can effectively control the light propagation path, reduce the light scattering in the unwanted directions, thereby reducing the glare effect and providing a better visual experience.

[0024] By arranging a flat lens between the first lens and the light-emitting bracket, the present application further optimizes the light distribution, enhances the light effect, reduces chromatic dispersion, making the over-light phenomenon obvious, achieving a certain light-cutting effect, making the wall-washing effect more intuitive, and at the same time isolating the environmental impact, which helps to protect the internal components.

[0025] Other features and advantages of the present utility model will be disclosed in detail in the following specific embodiments and drawings. Description of the Drawings

[0026] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 is a cross-sectional view of the overall structure of the present utility model;

[0028] Figure 3 is an enlarged view of the partial structure of the present utility model;

[0029] Figure 4 is a light effect diagram of the present utility model.

[0030] Explanation of the marks in the figure: 1. Lens bracket; 11. Clamping plate; 2. Light-emitting bracket; 21. Connecting part; 3. First lens; 4. Flat lens. Specific Embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] Embodiment 1

[0033] The lens unit, as Figure 1 and Figure 2 shown, includes:

[0034] A lens bracket 1, in which a lens accommodation cavity for accommodating a lens is provided. The lens bracket 1 includes a support bracket and a light-emitting bracket 2 fixedly connected to the support bracket;

[0035] The first lens 3 is fixed within the lens bracket 1, and a light source accommodation cavity for accommodating a light source is provided at the bottom of the first lens 3. A through hole for passing a cable is provided at the bottom of the support bracket.

[0036] In this embodiment, the support bracket is recessed away from the light-emitting bracket 2 to form a lens accommodation cavity for accommodating the first lens 3.

[0037] The first lens 3 includes a light-emitting surface, and at least one bead surface microstructure (not shown in the figure) is provided on the light-emitting surface. The light-emitting bracket 2 includes a light-emitting layer. The light-emitting layer is close to the light-emitting surface of the first lens 3. After passing through the light-emitting surface, light is emitted from the light-emitting hole. Light-emitting holes corresponding to the bead surface microstructures are provided on the light-emitting layer. Specifically, the bead surface microstructure and the corresponding light-emitting holes have the same shape and their central axes are located on the same straight line. The light-emitting holes are through holes. Specifically, in this embodiment, the "same shape" means the same horizontal cross-sectional shape.

[0038] By providing a light-emitting hole structure corresponding to the bead surface microstructure on the light-emitting bracket 2 in this application, the light emitted through the bead surface microstructure can be better integrated and managed, making the light beam corresponding to each through hole more uniform, thereby improving the uniformity of the light spot as a whole. Since the through holes of the light-emitting bracket 2 are consistent with the shape and position of the bead surface microstructure, the bright areas and dark areas formed due to uneven light scattering can be minimized to ensure that the light is softly and evenly distributed over the entire illumination area. At the same time, the unified glare rating of the lighting device can also be significantly reduced, providing a more comfortable lighting environment.

[0039] In this embodiment, each bead surface microstructure on the light-emitting surface has a corresponding light-emitting hole on the light-emitting bracket 2.

[0040] In this embodiment, the bead surface microstructure is a hexagonal bead surface, and the light-emitting holes are hexagonal through holes. The central axes of the hexagonal bead surface and the corresponding hexagonal through holes are located on the same straight line.

[0041] By providing a hexagonal bead surface microstructure in this application, a more uniform brightness distribution can be formed when light passes through the lens, thereby improving the clarity and sharpness of optical perception and making the image more real and natural. At the same time, the hexagonal microstructure can effectively control the light propagation path and reduce light scattering in unwanted directions, thereby reducing the glare effect and providing a better visual experience.

[0042] Preferably, the light-emitting angle of the hexagonal bead surface is less than 5°. Specifically, the design method for making the light-emitting angle less than 5° is prior art and will not be elaborated in this application.

[0043] In this embodiment, the light-emitting bracket 2 further includes a connecting portion 21. The connecting portion 21 is disposed outside the light-emitting layer and is in interference fit with the outer wall of the supporting bracket to achieve fixed connection with the supporting bracket. The specific interference fit method is prior art and will not be elaborated in this application.

[0044] Preferably, the light-emitting bracket 2 further includes an abutting portion. The abutting portion is disposed between the light-emitting layer and the connecting portion 21. The abutting portion is in abutting cooperation with the side wall of the supporting bracket, so that after the first lens 3 is fixed in the supporting bracket, the distance between the light-emitting surface of the first lens 3 and the light-emitting bracket 2 is constant, facilitating the installation of the light-emitting bracket 2, being conducive to effectively controlling the light propagation path, and ensuring a constant light-emitting effect.

[0045] Preferably, the distance between the upper surface of the light-emitting bracket 2 and the bead surface microstructure is 3.7 mm ± 0.01 mm, and the thickness of the light-emitting bracket 2 is 2 mm ± 0.1 mm.

[0046] A buckle plate 11 is provided on the inner wall of the supporting bracket. There is more than one buckle plate 11. After the first lens 3 is placed in the supporting bracket, the buckle plate 11 is located above the first lens 3. Preferably, the buckle plate 11 is in contact with the upper surface of the first lens 3.

[0047] In this embodiment, the buckle plate 11 is gradually inclined towards the central axis direction of the supporting bracket from top to bottom to fix the first lens 3.

[0048] The wall washer light includes the lens unit described above.

[0049] Embodiment Two

[0050] The difference between this embodiment and Embodiment One is that both the supporting bracket and the light-emitting bracket 2 are recessed outward from the lens bracket 1 to form a lens accommodation cavity for accommodating the first lens 3.

[0051] Embodiment Three

[0052] As Figure 3 shown, the difference between this embodiment and Embodiment One or Embodiment Two is that a flat lens 4 is provided between the first lens 3 and the light-emitting bracket 2. The surface of the flat lens 4 close to the first lens 3 is for light conduction.

[0053] In this embodiment, the flat lens 4 is a parallel plate lens. The upper surface and the lower surface of the flat lens 4 are both flat and parallel to each other.

[0054] In this application, a flat lens 4 is provided between the first lens 3 and the light-emitting bracket 2 to optimize the light distribution, enhance the light effect, reduce chromatic dispersion, making the over-light phenomenon obvious, achieving a certain light-cutting effect, making the wall-washing effect more intuitive, and at the same time isolating the environmental impact, which helps to protect the internal components.

[0055] As Figure 4 shown, it is the light effect diagram of this embodiment.

[0056] Preferably, the thickness of the flat lens 4 is 1 mm, and the distance between the flat lens 4 and the light-emitting bracket 2 is less than 1 mm.

[0057] A fixing structure for fixing the flat lens 4 is further provided on the buckle plate 11, and the fixing structure cooperates with the side wall of the flat lens 4 to fix the flat lens 4.

[0058] In this application, by only setting the buckle plate 11, the first lens 3 and the flat lens 4 can be fixed simultaneously.

[0059] The present utility model provides a lens unit and a wall-washing lamp, which have a simple structure, are convenient to use, and have high reliability.

[0060] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lens unit, characterized in that: include: A lens bracket, wherein a lens accommodating cavity is provided in the lens bracket, and the lens bracket comprises a supporting bracket and a light emitting bracket connected to the supporting bracket; A first lens, wherein the first lens is disposed in the lens holder, and a light source accommodating cavity is disposed at the bottom of the first lens; The first lens includes a light emitting surface, on which at least one bead surface microstructure is arranged, the light emitting bracket includes a light emitting layer, on which a light emitting hole corresponding to the bead surface microstructure is arranged, the bead surface microstructure and the corresponding light emitting hole have the same shape and the central axis is located on the same straight line.

2. The lens unit according to claim 1, characterized in that: The bead surface microstructure is a hexagonal bead surface, and the light exit hole is a hexagonal through hole.

3. The lens unit according to claim 2, characterized in that: The light emission angle of the hexagonal bead surface is less than 5°.

4. The lens unit according to claim 3, characterized in that: A gusset plate is arranged on the inner wall of the support bracket, and more than one gusset plate is arranged. The gusset plate is gradually inclined toward the central axis direction of the support bracket from top to bottom.

5. The lens unit according to claim 2, characterized in that: A flat lens is arranged between the first lens and the light output bracket.

6. The lens unit according to claim 5, characterized in that: The upper surface of the flat lens and the lower surface of the flat lens are both planes and parallel to each other.

7. The lens unit according to claim 6, characterized in that: The distance between the flat lens and the light output bracket is less than 1 mm.

8. The lens unit according to any one of claims 5 to 7, characterized in that: A gusset plate is provided on the inner wall of the support bracket, and more than one gusset plate is provided. The gusset plate is gradually inclined from top to bottom toward the central axis direction of the support bracket; the gusset plate is also provided with a fixing structure for fixing the flat lens, and the fixing structure cooperates with the side wall of the flat lens to fix the flat lens.

9. The lens unit according to any one of claims 1 to 7, characterized in that: The light emitting bracket further comprises a connecting portion, which is arranged outside the light emitting layer and has an interference fit with the outer wall of the supporting bracket; The light emitting bracket further comprises an abutting portion, which is arranged between the light emitting layer and the connecting portion, and the abutting portion cooperates with and abuts against a side wall of the supporting bracket.

10. A wall washer lamp, characterized in that: The lens unit comprises the lens unit according to any one of claims 1 to 9.

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