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Light-emitting diode (LED) lamp capable of improving light uniformity

A technology of uniformity of LED lights, applied in the direction of semiconductor devices, light sources, lampshades, etc.

Inactive Publication Date: 2013-06-26
SUNSUN LIGHTING CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the lampshades of existing LED bulb lamps, LED downlights and other lamps have more light output in the direct light direction of the light source due to the strong directionality of the LED light source, and the brightness is higher, and the light of other light sources cannot be directly irradiated. In order to solve the problem of less light output from the position, the present invention provides an LED lamp. This LED lamp uses a lampshade with a coating with a certain thickness inside. Improve the space light angle of LED lights

Method used

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  • Light-emitting diode (LED) lamp capable of improving light uniformity
  • Light-emitting diode (LED) lamp capable of improving light uniformity
  • Light-emitting diode (LED) lamp capable of improving light uniformity

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The structure of the LED lamp for improving light uniformity provided by this embodiment is shown in the figure, including a lamp cap 5, a heat dissipation shell 31, a light source 2, a driving power supply 4, and a lampshade 1. The inner wall of the lampshade 1 is coated with a coating 14, so The thickness of the coating 14 gradually changes from thick to thin from the top 15 of the lampshade to the open ends 16a, 16b; the coating 14 is formed by mixing glue and particles, and the particles are transparent particles. In this embodiment, the lampshade 1 is made of glass, the glue is silica gel, and the particles are silica with an average particle size of 100 microns. The silica and silica gel are mixed to form a mixture with a mass concentration of 25% silica and then heated and cured.

[0034] After the coating is cured, the thickness of the coating is 5 mm at the thickest part on the top 15 of the lampshade, and 1 mm at the thinnest part of the coating near the open ...

Embodiment 2

[0039] The difference between this embodiment and Embodiment 1 is that the lampshade 1 is made of polycarbonate (PC), the glue adopts epoxy resin, the particles adopt silicon dioxide with an average particle diameter of 0.1 micron, and the mass concentration of particles in the mixture of particles and glue It is 30%. After the coating is cured, the thickness of the thickest part of the coating on the top 1 of the lampshade is 3mm, and the thickness of the thinnest part of the coating near the open ends 16a and 16b of the LED lamp is 0.4mm. The average beam angle of the produced LED lamp was 163.9 degrees.

[0040]

Embodiment 3

[0042] The difference between this embodiment and Embodiment 1 is that the lampshade body is made of polymethyl methacrylate (PMMA), the glue is epoxy resin, and the particles are glass particles with an average particle diameter of 500 microns. The mass concentration is 10%. After the coating is cured, the thickness of the thickest part of the coating on the top 1 of the lampshade is 2 mm, and the thickness of the thinnest part of the coating near the open ends 16a and 16b of the LED lamp is 0.1 mm. The average beam angle of the produced LED lamp was 155.1 degrees.

[0043]

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Abstract

The invention provides a light-emitting diode (LED) lamp capable of improving light uniformity. The LED lamp capable of improving light uniformity uses a lamp cover with coatings of non-uniform thickness distributed on a lamp cover body, and belongs to the semiconductor lighting field. The LED lamp capable of improving light uniformity comprises a lamp head, a radiating outer shell, a light source, a driving power supply and the lamp cover. The coatings are coated in the inner wall of lamp cover. The thickness of the coatings becomes thinner from the top of the lamp cover to an opening end. The coatings are made by solidifying mixed glue and particles. The particles are euphotic particles. Compared with an existing LED lamp, the LED lamp capable of improving light uniformity is uniform in bright dipping, glaring phenomenon is not prone to occur, and space lighting angle is big and can reach more than 150 degrees.

Description

[0001] technical field [0002] The invention provides an LED lamp using a lampshade with a coating with uneven thickness distributed on the lampshade body, which belongs to the field of semiconductor lighting. [0003] Background technique [0004] LED bulb lamps and downlights are currently being used more and more widely, and are rapidly replacing incandescent and fluorescent lamps. The main components of current LED bulb lamps and downlights are basically similar, including lamp holders, radiators, driving power supplies, light sources, and lampshades. For bulb lamps and downlights, people widely use frosted glass, PC or PMMA with diffusing agent, or coat a layer of diffusing agent represented by silicon dioxide on the glass surface to achieve full mixing of light in the lampshade , to reduce the amount of light emitted in the direct direction of the light. However, since the overall diffusion effect and light transmittance of the lampshade products manufactured by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V3/04F21V5/08F21Y101/02F21K9/20F21Y115/10
Inventor 孙建宁罗宁张瑞西
Owner SUNSUN LIGHTING CHINA
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