Device and method for testing LED (Light Emitting Diode) aging under multiple physics fields

Abstract

The invention discloses a device and a method for testing LED (Light Emitting Diode) aging under multiple physics fields. The device mainly comprises a vibrating device, a sliding device, a fixture, acircuit board device, an infrared heat signal collecting module, an integrating sphere optical signal collecting module and a data collecting module, wherein the sliding device is capable of moving the aged circuit board device to the infrared heat signal collecting module and the integrating sphere optical signal collecting module for carrying out signal collection, and then data can be sent toa PC (Personal Computer) of the data collecting module. According to the device for testing the LED aging, provided by the invention, online testing can be carried out after the device is aged under the multiple physical fields such as current, high temperature and vibrating environments, optical, electric and thermal signals of an LED can be online collected, and the using performance of the LEDunder different aging environments can be comprehensively reflected.

Description

technical field [0001] The invention relates to a multi-physics field LED aging test device and method, belonging to the technical field of LED online testing. Background technique [0002] Compared with ordinary light sources, LED has the advantages of low power consumption and long life, which makes it greatly developed in lighting and other fields; however, the quality of LEDs often varies in the market, and the lack of advanced technology for reliability testing makes Consumers lack confidence in the further promotion and application of the LED market. [0003] The testing devices in the prior art can usually only test one performance of LEDs in a single environment. For multi-performance testing of LEDs in different environments, various testing devices must be used respectively, which brings a lot of inconvenience to LED testing. At present, there are also some devices that can comprehensively test the performance of LEDs in different environments. For example, the LE...

AI Technical Summary

Problems solved by technology

[0002] Compared with ordinary light sources, LED has the advantages of low power consumption and long life, which makes it greatly developed in lighting and other fields; however, the quality of LEDs often varies in the market, and the lack of advanced technology for reliability testing makes Consumers lack confidence in the further promotion and application of the LED market

[0003] The test devices in the prior art can usually only test one performance of LEDs in a single environment. For multi-performance tests of LEDs in different environments, various test devices must be used respectively, which brings a lot of inconvenience to LED testing.

At present, there are also some devices that can comprehensively test the performance of LEDs in different environments. For example, the LED testing device designed by Yang Yaowu can test the performance parameters of LEDs such as light, color and electricity under different temperatures and vibration environments. See patent CN104459569A for details; but This design exposes the optical instrument to the environment of temperature shock, and due to the influence of vibration, it will lead to the measurement error of optical parameters

Images