Method for fabricating LED illumination light source and LED illumination light source

一种LED照明、制造方法的技术，应用在白色LED照明光源领域，能够解决无法抑制LED照明光源色斑等问题，达到防止色斑、减轻色斑的效果

Inactive Publication Date: 2007-02-07
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the accuracy deteriorates to this extent, even if the color unevenness caused by the image of the corner 113a can be suppressed, asymmetrical color unevenness will occur due to the deviation of the hole shape, and as a result, the color unevenness of the entire LED lighting source cannot be suppressed.

Method used

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  • Method for fabricating LED illumination light source and LED illumination light source
  • Method for fabricating LED illumination light source and LED illumination light source
  • Method for fabricating LED illumination light source and LED illumination light source

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Embodiment Construction

[0076] The inventors of the present application considered reducing the color unevenness by scattering the light (yellowish white) emitted obliquely upward from the LED chip and mixing it with other white light in order to suppress the color unevenness of the LED lighting source. If the method of forming the structure for generating such scattering is too complicated, the mass production of the LED lighting source will be reduced and the cost will be increased. Therefore, it is desirable to suppress stains with a structure as simple as possible. The inventors of the present application found that color unevenness can be significantly reduced by covering the phosphor resin portion with a translucent resin portion (light diffusion layer) in which a diffusing agent (fine particles) is dispersed, and completed the present invention.

[0077]The LED illumination light source of the present invention includes at least one LED chip mounted on a substrate, a phosphor resin portion cov...

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Abstract

An LED lamp according to the present invention includes: at least one LED chip 12 that is mounted on a substrate 11; a phosphor resin portion 13 that covers the LED chip 12; a lens 22 to act on the outgoing light of the phosphor resin portion 13; and an optical diffusion layer (light-transmissive resin portion 20), which is arranged between the phosphor resin portion 13 and the lens 22 and in which particles to scatter the light are dispersed.

Description

technical field [0001] The invention relates to a manufacturing method of an LED lighting source and an LED lighting source. In particular, it relates to a manufacturing method of a white LED lighting source for general lighting and a white LED lighting source. Background technique [0002] A light emitting diode element (hereinafter referred to as "LED element") is a small and highly efficient semiconductor element that emits brightly colored light and has a good monochromaticity peak. When using LED elements to emit white light, for example, red LED elements, green LED elements, and blue LED elements must be placed close together to diffuse and mix colors. However, since each LED element has a good monochromatic peak, it is easy to cause color spots . That is to say, if each LED element emits light unevenly and does not mix colors well, it will become white light with color spots. In order to solve such a problem of color unevenness, a technique of combining a blue LED ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00F21S2/00F21Y101/02H01L33/32H01L33/50H01L33/54H01L33/56H01L33/60H01L33/62
CPCH01L33/50H01L33/56F21S6/003H01L2224/48091F21Y2101/02F21K9/00F21S6/00H01L2933/0091F21Y2105/10F21Y2115/10F21K9/64H01L2924/00014
Inventor 矢野正高桥清清水正则
Owner PANASONIC CORP
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