LED electrodeless color temperature adjusting light source and manufacturing process thereof

A color temperature and light source technology, applied in electrical components, electric solid devices, circuits, etc., can solve the problems of inability to accurately control the color of the light source, light spot, uneven distribution of light spots, and inability to accurately adjust the color temperature and brightness.

Active Publication Date: 2021-01-29
四川纵横交安科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an LED stepless color temperature light source and a lamp using the light source, so as to solve the problem of easy generation of light spots and uneven distribution of light spots caused by the traditional light source packaging method of packaging more t...

Method used

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  • LED electrodeless color temperature adjusting light source and manufacturing process thereof
  • LED electrodeless color temperature adjusting light source and manufacturing process thereof
  • LED electrodeless color temperature adjusting light source and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 1The shown LED stepless color temperature light source includes a substrate 1, on which a crystal-bonding area is arranged, and first fixing tables 14 and second fixing tables 15 are arranged alternately in the crystal-bonding area. The fixed platform 14 is provided with a first circuit board 2, the first circuit board 2 is provided with a blue light chipset, the second fixed platform 15 is provided with a second circuit board 3, and the second circuit board 3 is provided with A red chip set is provided; the blue chip set is covered with a first fluorescent adhesive layer 7, and a transparent adhesive layer 8 is arranged on the first fluorescent adhesive layer 7, and the transparent adhesive layer 8 covers the red chip set, the transparent adhesive layer 8 is provided with a second fluorescent adhesive layer 9; both the first fluorescent adhesive layer 7 and the second fluorescent adhesive layer 9 contain yellow phosphor, and the blue light emitted by the...

Embodiment 2

[0061] On the basis of Example 1, in parts by weight, the first fluorescent adhesive layer 7 is composed of 4.2 to 5.3 parts of glue A / B and 0.05 to 0.1 part of yellow fluorescent powder, and the second fluorescent adhesive layer 9 is composed of 4.2 parts. ~5.3 parts of glue A / B and 0.1~0.14 parts of yellow fluorescent powder.

[0062] In this embodiment, the first fluorescent glue layer and the second fluorescent glue layer are only composed of yellow phosphor powder, glue A / B and necessary impurities, which not only simplifies the preparation process of fluorescent glue, reduces the difficulty and cost of the overall process, but also The shallow and deep two excitations completed by the designed component ratio effectively improve the light output efficiency of the light source, and the high and low color temperature fusion effect is better, and the color temperature adjustment is smoother.

[0063] In some embodiments, the content of the yellow phosphor in the second fluo...

Embodiment 3

[0068] On the basis of Example 2, the first fluorescent glue layer 7 is composed of 4.2 parts of glue A / B and 0.07 part of yellow phosphor, and the second fluorescent glue layer 9 is composed of 4.2 parts of glue A / B and 0.14 part of yellow phosphor.

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Abstract

The invention relates to an LED electrodeless color temperature adjusting light source and a manufacturing process thereof. The light source comprises a substrate, a die bonding area is arranged on the substrate, a first fixing table and a second fixing table are alternately arranged in the die bonding area, a first circuit board is arranged on the first fixing table, a blue light chip set is arranged on the first circuit board, and a second circuit board is arranged on the second fixing table. A red light chipset is arranged on the second circuit board; the blue light chip set is covered witha first fluorescent glue layer, the first fluorescent glue layer is provided with a transparent glue layer, the transparent glue layer covers the red light chip set, and the transparent glue layer isprovided with a second fluorescent glue layer. According to the invention, the blue light chip set is packaged by the first fluorescent glue layer, and then the blue light chip set and the red lightchip set are packaged by the transparent glue layer and the second fluorescent glue layer at the same time, so that the light excitation blue light chip, the deep excitation blue light chip and the red light chip are realized, and the fusion effect of high color temperature and low color temperature is better; electrodeless adjustment of the color temperature is achieved by adjusting the current of the red light chip set; meanwhile, the light emitting efficiency of secondary excitation is higher.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to an LED stepless color temperature light source and a manufacturing process of the light source. Background technique [0002] Color temperature is a physical quantity used to define the color of a light source in lighting optics. It means that when a black body is heated to a certain temperature, the color of the light emitted by the black body is the same as that emitted by a light source. At this time, the temperature at which the black body is heated It is called the color temperature of the light source, and the unit is expressed in Kelvin temperature unit. Color temperature is a characteristic of visible light that has important applications in photography, video, publishing and other fields. The color temperature is below 3300K, the light color is reddish, there is a stable atmosphere and a warm feeling, it is called warm color temperature; the color temperature is ...

Claims

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Application Information

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IPC IPC(8): H01L33/48H01L33/50H01L33/62H01L25/075
CPCH01L25/0753H01L33/486H01L33/502H01L33/62H01L2933/0033H01L2933/0041H01L2933/0066
Inventor 罗业富刘成禹
Owner 四川纵横交安科技有限公司
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