Lightprobes are the optical counterpart of in-circuit tests probes (nails) used in ATE test fixtures. Three lightprobe models offer the capability of checking color and intensity of virtually any size ...

The polarity markings on LEDs (Light Emitting Diodes) seem to be a common cause of confusion. The polarity may be indicated by a flat section on one side of the body or by one lead being shorter than ...

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 ...

Jianzhong Jiao describes the work of IES and CIE committees in formulating testing standards for AC LEDs, including temperature controls and the range of optical measurements needed to characterize ...