Production Testing of High-Intensity, Visible LEDs

Production Testing of High-Intensity, Visible LEDs

Due to their long life and high reliability, visible light emitting diodes (LEDs) are finding their way into more and more applications. LEDs are now found in most automobiles, street lights, outdoor signs, etc. Also, with the development of new colors and new critical applications, there is an ever-increasing need for cost-effective testing methods to ensure the reliability of the LED. With the advent of technologies such as high-intensity and organic LEDs, demands on test equipment in terms of measurement performance and throughput continue to increase. This application note illustrates methods and issues related to creating production test system solutions that verify the performance of single and multiple (array) LED devices. ■