Richardson Electronics, Ltd. engages in the power and microwave technologies, customized display solutions, and healthcare equipment businesses in North America, the Asia Pacific, Europe, and Latin America. The company's Power and Microwave Technologies Group segment provides engineered solutions, power grid and microwave tubes, and related consumables; flat panel detector solutions, replacement parts, tubes and service training for diagnostic imaging equipment; and customized display solutions, as well as power conversion and RF and microwave components for broadcast transmission, CO2 laser cutting, diagnostic imaging, dielectric and induction heating, high energy transfer, high voltage switching, plasma, power conversion, radar, and radiation oncology applications. Its products are used to control, switch, or amplify electrical power signals, as well as are used as display devices in alternative energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, mil