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A brief of the Harm and Production Principle of Stroboscopic

The Harm of  Stroboscopic: 1.It can be hurt to your eyes. 2.It can product illusion too. 3.It will cause inefficiency. The Production Principle of  Stroboscopic: 1. The frequency of electrical power supply is low. At present, the vast majority of incandescent lamp, high-pressure mercury(sodium) lamp, inductive fluorescent lamp direct supply power by 50hz frequency sinusoidal […]

The Reason for the Production of Junction Temperature

The basic structure of LED is a semiconductor, P – N junction. The experiment points out that P – N junction temperature will rise when the current go through the LED components, technically, we usually define the P – N junction zone temperature as the LED junction temperature. Usually, we put the temperature of LED […]

LED Component Certification Project

The certification of LED componets should test parameters as following: 1.The photoelectric performance( The curves of current, temperature, time) Test Equipment: Integrating Sphere 2.Thermal properties test ( junction temperature, thermal resistance) Test Equipment: T3ter 3.ESD Test ( during pre-test and post-test test L-V curve/LED particle have no punchthrough phenomenon ) Test Equipment: Electrostatic Discharge Simulator […]