LED light spot improving method

A light spot and phosphor technology, which is applied to electrical components, circuits, semiconductor devices, etc., can solve the problems of fast product attenuation and large difference in light spots, and achieve the effect of increasing the light-emitting area, improving luminous flux, and avoiding large differences in light spots

Inactive Publication Date: 2012-07-04
SHENZHEN HUAGAO OPTOELECTRONICS TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for improving LED light spots to solve the problems of large differences in light spots and fast product attenuation caused by the combination of three powders with different chemical properties.

Method used

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  • LED light spot improving method
  • LED light spot improving method

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Embodiment Construction

[0014] Please refer to Figures 1 to 2 As shown, in this embodiment, a method for improving LED light spots comprises the following steps:

[0015] a. Material selection: choose a bracket with a cup depth of 0.46±0.02mm and a cup mouth angle of 135 degrees, and choose phosphors with a particle size of 17-19um and a particle size of 4-5um to match each other;

[0016] b. Glue dispensing: use yellow fluorescent glue 1 to form a hemispherical structure, and form two surfaces approximately parallel to the lens 2.

[0017] The LED light spot improvement method effectively improves the luminous flux by selecting phosphor powders with a particle size of 17-19um and a particle diameter of 4-5um to match each other, and the phosphor powder with a particle size of 4-5um replaces the diffusing powder, avoiding the combination of different chemical properties of the three powders The problem of large differences in light spots and fast product attenuation is caused by the combination. In...

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Abstract

The invention discloses an LED light spot improving method, which includes the following steps of a, selecting: selecting a support with the cup depth of 0.46+ / -0.02mm and the cup mouth angle of 135 degrees and selecting fluorescent powder with the grain size of 17-19 mu m and fluorescent powder with the grain size of 4-5 mu m for matching; and b, dispensing adhesive: dispensing yellow fluorescent adhesive to form a semi-spherical structure and form two surfaces approximately parallel to each other with a lens. By matching of the fluorescent powder with the grain size of 17-19 mu m and the fluorescent powder with the grain size of 4-5 mu m, luminous flux can be improved effectively by the LED light sport improving method, and further, the fluorescent powder with the grain size of 4-5 mu m substitutes for diffusion powder, the problems of large light spot difference and fast attenuation of products, caused by combination of three kinds of powder different in chemical property, are avoided. Besides, the luminous area is enlarged by dispensing the yellow fluorescent adhesive to form the semi-spherical structure.

Description

technical field [0001] The invention relates to an LED, in particular to a method for improving LED light spots. Background technique [0002] At present, in the LED packaging industry, in order to obtain a good light spot and greater luminous flux, most of the phosphors with a particle size of 17-19um are used together with diffusion powder and anti-sedimentation powder, but the diffusion powder and anti-sedimentation powder will reduce the luminous flux , if the customer has stricter requirements on the spot, you can only continue to add more diffusing powder, so that the spot is improved but the luminous flux is reduced and the attenuation is too large; in addition, the combination of the three powders with different chemical properties will cause the following problems: (1) In the process of stirring, the stirring is not uniform, resulting in a large difference in the light spot of the same batch of materials; (2) During the aging process, the yellowing of the diffusing ...

Claims

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Application Information

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IPC IPC(8): H01L33/00
Inventor 付建国付晓辉
Owner SHENZHEN HUAGAO OPTOELECTRONICS TECH
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