Method and system for detecting color temperature of mixed light of fluorescent powder

Abstract

The invention discloses a method and a system for detecting color temperature of mixed light of fluorescent powder, wherein the method comprises the following steps: A) dispersing first fluorescent powder in a solvent to obtain fluorescent powder solution; B) putting the fluorescent powder solution on a light-emitting device so as to lead light emitted by the light-emitting device to pass throughthe fluorescent powder solution; C) the light passing through the fluorescent powder is detected by a color temperature detecting unit so as to output a signal; and D) converting the signal into a corresponding position on a color coordinate so as to obtain color temperature of the mixed light of the fluorescent powder.

Description

technical field [0001] The invention relates to a fluorescent powder mixed light color temperature detection method and a system thereof, which can obtain a predetermined color temperature and color rendering property by adjusting a fluorescent powder mixing ratio before packaging a light-emitting diode, so as to shorten the detection time of the light-emitting diode color temperature and improve the process waste problem. Background technique [0002] In recent years, due to the advantages of high luminous efficiency, low power consumption, long service life, and small component size, light-emitting diodes (LEDs) have been widely used in various light-emitting devices and replaced various lighting equipment. [0003] However, it is difficult for LEDs to be used in the livelihood lighting market. In addition to the problems of heat dissipation, insufficient brightness, and brightness reduction, LEDs also have the problem of not being able to directly stimulate white light. A...

AI Technical Summary

Problems solved by technology

[0007] Although LEDs with the desired color temperature can be made with the above method, this method still has its disadvantages

First, the fluorescent powder mixes light unevenly; second, it is difficult to adjust the color temperature and color rendering index; third, the mixed light color temperature detection needs to be performed after the LED is packaged, resulting in a long verification time; fourth, if the manufactured If the LED does not reach the expected color temperature, it needs to be discarded and remanufactured, resulting in problems such as low LED yield, serious waste problems, and excessive phosphor consumption.

Images