Machine Learning and Digital Twin Driven Diagnostics and Prognostics of Light-Emitting Diodes

Light-emitting diodes (LEDs) are among the key innovations that have revolutionized the lighting industry, due to their versatility in applications, higher reliability, longer lifetime, and higher efficiency compared with other light sources. The demand for increased lifetime and higher reliability has attracted a significant number of...

LED standardization in China and South East Asia: Stakeholders, infrastructure and institutional regimes

LED is now becoming the new standard in lighting solutions in developed countries. However, in developing countries, it is not yet used on a large scale. One of the reasons is a lack of established regional standards for LED. An institutional infrastructure for standardization is one of the essential elements for the establishment of common...

Progress in Understanding Color Maintenance in Solid-State Lighting Systems

In this paper, progresses of color maintenance, also known as color shift, in solid-state lighting (SSL) systems are thoroughly reviewed. First, color shift is introduced and a few examples are given from different real-life industrial conditions. Different degradation mechanisms in different parts of the system are also explained. Different...