The days of the quartz halogen lamp in machine vision applications could be over. Jacqueline Hewett finds out how Edmund Optics went back to basics to improve the coupling efficiency of an LED, ...

Designed to withstand rugged use in demanding work environments, this portable work area light tower is constructed of heavy duty steel and equipped with dual quartz halogen lamps. This work area ...

The devices made of high-intensity gallium nitride light-emitting diodes (LEDs) were also compared to conventional halogen-quartz bulbs phototherapy. DESIGN: Prospective open randomized study.