LED stepless color temperature light source and its manufacturing process

Abstract

LED stepless color temperature light source and its manufacturing process. The light source includes a base plate, on which a crystal-bonding area is arranged, and in the crystal-bonding area, first and second fixing tables are arranged alternately, and the first fixing table is provided with a second fixing table. A circuit board, the first circuit board is provided with a blue light chipset, the second fixed platform is provided with a second circuit board, the second circuit board is provided with a red light chipset; the blue light chipset is covered with a first fluorescent adhesive layer , the first fluorescent adhesive layer is provided with a transparent adhesive layer, the transparent adhesive layer covers the red light chipset, and the transparent adhesive layer is provided with a second fluorescent adhesive layer. The present invention uses the first fluorescent glue layer to package the blue light chip set, and then uses the transparent glue layer and the second fluorescent glue layer to package the blue light chip set and the red light chip set at the same time, so as to realize the shallow excitation of the blue light chip and the deep excitation of the blue light chip and the red light chip , the fusion effect of high color temperature and low color temperature is better, and the stepless adjustment of color temperature is realized by adjusting the current of the red chip set, and the light output efficiency of the 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. Precise control of the color of the light source, and the need to sacrifice the brightness of the light source 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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