LED electrodeless color temperature adjusting light source and manufacturing process thereof

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 ...

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 than two groups of LED chips separately. Control the color of the light source, and the brightness of the light source needs to be sacrificed to adjust the color temperature in the process of adjusting the color temperature, and the problem that the required color temperature and brightness cannot be adjusted accurately

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