CN202757054U - High-power light-emitting diode (LED) diffuser plates and LED lamp - Google Patents

Abstract

The utility model relates to a high-power LED diffuser plate, which is used for the diffusion of high-power LED light sources. The lower surface of the diffuser plate substrate has protruding microstructures, and the microstructures are arranged according to the intensity of the radiation intensity of the light source received by the diffuser plate substrate. cloth. The shape of the microstructure is pyramid, raised dot or triangular pyramid. An LED lamp includes an LED array. A high-power LED diffuser plate of the utility model is arranged above the LED array as the LED array diffuser plate. Each LED lamp bead corresponds to a high-power LED diffuser plate. In the utility model of high-power LED diffuser plate and LED lamp, the microstructures are densely arranged according to the size of the radiation intensity of the light source received by the diffuser plate substrate, which can reduce the distance between the LED array and the diffuser plate while ensuring the diffusion effect, thus reducing the LED The thickness of the lamp; after the distance between the LED array and the diffusion plate is reduced, the utilization efficiency of light energy is improved.

Description

High-power LED diffusion plate and LED lamps

technical field

The utility model relates to the technical field of LED lamps, in particular to a high-power LED diffusion plate and an LED lamp.

Background technique

High-power LED has high light conversion rate and good heat dissipation effect, and is widely used in various optical fields. However, in the application of the LED array, since the light intensity of the light source emitted by the high-power LED is very large, the number of LEDs in the array is reduced and the spacing is increased. This kind of high-power LED array, because the distance between two adjacent LEDs is relatively large, if an ordinary diffusion plate is still used, there will be dark areas and bright areas spaced apart from each other. In order to achieve a better diffusion effect, the usual implementation method is to increase the distance between the diffusion plate and the light source, but this will make the overall thickness of the LED array thicker, and the light transmittance of the light source will also be affected.

In the prior art, in order to prevent the light source emitted by the LED from passing through the diffuser plate so as not to form dark and bright areas spaced apart from each other due to the excessive concentration of the light source, a certain amount of diffuser is added to the diffuser plate during the manufacturing process. Particles or diffusers are used to reduce or eliminate the bright spots produced by the point light source of the LED, so that the overall output of the light source can achieve a uniform diffusion effect. However, this diffusion plate can only diffuse the light source to a certain extent, and has high manufacturing cost and low utilization rate of light energy.

Utility model content

The technical problem to be solved by the utility model is: for the disadvantages of poor diffusion effect, low light source utilization rate and thicker LED lamps in the prior art, the utility model provides a high-power LED diffuser plate and LED lamps.

The technical solution adopted by the utility model to solve the technical problem is: a high-power LED diffuser plate, which is used for the diffusion of high-power LED light source, the lower surface of the diffuser plate substrate has a protruding microstructure, and The size and density of the radiation intensity of the light source received by the board substrate are arranged in a dense manner; the power of the LED lamp beads is different, and the distance between the LED lamp beads and the diffusion plate is different, and the corresponding microstructures are also arranged differently. The arrangement can be simulated by software, so that the light emitted by the LED light source through the diffuser plate is evenly distributed; the material of the diffuser plate can be acrylic or transparent material.

Preferably, the shape of the microstructure is pyramid, raised dot or triangular pyramid.

In order to ensure the diffusion effect, the height of the microstructure is 0.2mm-0.5mm, and the side length or diameter of the bottom surface is 0.4mm-1mm.

In order to improve the light transmittance, the thickness of the diffuser substrate is 1 mm to 5 mm.

An LED lamp, comprising an LED array. The high-power LED diffuser plate described in the present invention is arranged above the LED array as the LED array diffuser plate, and each LED bead corresponds to a piece of the high-power LED diffuser plate.

In order to ensure the diffusion effect and light utilization rate, preferably, the LED array diffusion plate is arranged at 10 mm to 20 mm above the LED array.

In order to facilitate installation, the LED array diffuser plate is integrally formed.

The beneficial effect of the utility model is that the microstructures of the high-power LED diffuser plate and LED lamps of the utility model are arranged according to the intensity of the radiation intensity of the light source received by the diffuser plate substrate, so that the diffusion effect of the LED array can be reduced while ensuring the diffusion effect. Therefore, the thickness of the LED lamp is reduced; the distance between the LED array and the diffusion plate is reduced, and the utilization efficiency of light energy is improved.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a schematic diagram of the microstructure shape of the high-power LED diffusion plate of the present invention.

In Figure 1, (a) is a pyramid-shaped microstructure, (b) is a triangular pyramid-shaped microstructure, and (c) is a raised dot-shaped microstructure.

Fig. 2 is a schematic diagram of distribution of vertices of the microstructure of the high-power LED diffuser plate of the present invention.

Fig. 3 is a schematic structural diagram of an LED lamp of the present invention.

Fig. 4 is a schematic structural diagram of another LED lamp of the present invention.

In the figure, 1. High-power LED diffuser plate, 1-1, diffuser plate substrate, 1-2, microstructure apex, 2. LED array diffuser plate, 3. LED lamp beads, 4. reflector plate.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

As shown in Fig. 1 and Fig. 2, the schematic diagrams of the shape of the microstructure and the distribution of vertices of the microstructure of the high-power LED diffusion plate of the present invention are shown. The lower surface of the diffusion plate substrate 1-1 has protruding microstructures, and the microstructures are arranged densely and densely according to the radiation intensity of the light source received by the diffusion plate substrate 1-1. That is, the apex of the microstructure. The thickness of the diffuser plate substrate 1-1 is 1 mm to 5 mm, and the microstructure is pyramid-shaped. The height of the pyramid is 0.2 mm to 0.5 mm, and the side length of the bottom surface is 0.4 mm to 1 mm.

As shown in Figure 3 and Figure 4, the structure schematic diagrams of two kinds of LED lamps of the present invention, Figure 3 is the microstructure of the LED array diffuser plate 2 located on the side facing the LED lamp bead 3, Figure 4 is the structure of the LED array diffuser plate 2 The microstructure is located on the side away from the LED lamp bead 3 . The structure of these two kinds of LED lamps is as follows, including an LED array, and the high-power LED diffusion plate 1 described in the present invention is arranged above the LED array as the LED array diffusion plate 2, and each LED lamp bead 3 corresponds to one of the high-power LED lamps described above. The LED diffuser plate 1 and the LED array diffuser plate 2 are integrally formed, and the LED array diffuser plate 2 is arranged at 10 mm to 20 mm above the LED array. Reflectors 4 are provided on the bottom and around the LED lamp bead 3 .

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (7)

1. A high-power LED diffuser plate for the diffusion of high-power LED light sources, characterized in that: the lower surface of the diffuser plate substrate (1-1) has a protruding microstructure, and the microstructure follows the diffusion plate substrate ( 1-1) The size and density of the received light source radiation intensity are arranged. 2. The high-power LED diffuser plate according to claim 1, wherein the shape of the microstructure is pyramid, raised dot or triangular pyramid. 3. The high-power LED diffuser plate according to claim 1 or 2, characterized in that: the height of the microstructure (2) is 0.2mm-0.5mm, and the side length or diameter of the bottom surface is 0.4mm-1mm. 4. The high-power LED diffusion plate according to claim 1, characterized in that: the thickness of the diffusion plate substrate (1-1) is 1mm-5mm. 5. An LED lamp, comprising an LED array, characterized in that a high-power LED diffusion plate (1) according to any one of claims 1-4 is set above the LED array as the LED array diffusion plate (2) , each LED lamp bead (3) corresponds to one piece of the above-mentioned high-power LED diffuser plate (1). 6. The LED lamp according to claim 5, characterized in that: the LED array diffusion plate (2) is arranged at 10mm-20mm above the LED array. 7. The LED lamp according to claim 5 or 6, characterized in that: the LED array diffusion plate (2) is integrally formed.

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