Long Beach, Calif. — Epson introduced its first scanner with an LED light source. The V500 Photo is a 6,400 dpi scanner with new “ReadyScan” LED technology that eliminates the warm-up time associated ...

The Multi-Beam R2100 LED scanner combines three technologies into one device for precise distance measurement — regardless of surface texture. The photoelectric distance-measurement sensor uses ...

[Andrea] built this LED chaser using one logic chip. It illuminates all but one of the six LEDs, with the dim bit moving back and forth along the row in a chase sequence. This is something like an ...