With advances in LED technology there is a growing demand for measurement systems to evaluate LED characteristics.

Gastrointestinal cancers remain among the most common forms of cancer. While endoscopy has become a cornerstone of cancer screening and diagnosis over ...

From touch-sensitive smartphone screens to fitness wearables and wireless earbuds, electronics are becoming ever more ...

This letter proposes an analytical model on the energy efficiency for visible light communications (VLC) based on light-emitting diode (LED). We certify the variation pattern of energy efficiency of ...

This study proposes a novel light-emitting diode (LED) driver circuit that stabilizes the lighting output without a photodiode. The LED driver circuit is composed of a self-alignment circuit to ...

The prototype LED-based hyperspectral imaging system demonstrates potential for real-time tissue assessment, improving ...

The lighting industry’s benchmark for the end of service life is defined as when LED output drops to 70% of its initial ...

Low-dimensional ZnO, possessing well-defined side facets and optical gain properties, has emerged as a promising material to develop ultraviolet coherent light sources. However, the realization of ...