Handbook of LED Metrology

Incredible developments in LEDs in recent years have generated a significant growth market with completely new applications. Full color displays only became possible with the introduction of high-intensity blue LEDs, while white LEDs are becoming widely used in lighting engineering and the automobile industry. These new applications have placed increasingly stringent demands on the optical characterization of LEDs, which serves as the benchmark of product quality. Specific expertise is needed in order to obtain precise and reproducible results. This application note discusses the special characteristics of LEDs and provides recommendations for obtaining accurate measurement results. The goal here is to provide not only an introduction to LED metrology for readers new to this subject area, but also a useful reference work for more experienced readers.