ProPhotonix Ltd. engages in the design and manufacture of illumination systems. It operates through the Light Emitting Diode Systems (LED's) and Laser and Diodes segments. The LED's segment designs and manufactures LED systems for the inspection, machine vision, medical and military markets. The Laser and Diodes segment distributes laser diodes and designs and manufactures custom laser diodes modules for industrial, commercial, defense, and medical applications. The company was founded on March 27, 1951 and is headquartered in Salem, NH.