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; technical services for microwave and industrial equipment; flat panel detector solutions, replacement parts, tubes, and service training for diagnostic imaging equipment; customized display solutions; and 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, communications, industrial, marine, military, scientific, and semiconductor markets. The company's Canvys segment provides custom display solutions, such as touch screens, protective panels, all-in-one computers, custom enclosures, specialized cabinet finishes, application specific software packages, and certification services to corporate enterprise, financial, industrial, and medical original equipment manufacturer markets. Its Healthcare segment manufactures, refurbishes, and distributes diagnostic imaging replacement parts for CT and MRI systems; replacement CT and MRI tubes; MRI coils, cold heads, and RF amplifiers; hydrogen thyratrons, klystrons, and magnetrons; flat panel detector upgrades; and additional replacement solutions, as well as offers CT service training. This segment serves hospitals, medical centers, asset management companies, independent service organizations, and multi-vendor service providers. The company was founded in 1947 and is headquartered in LaFox, Illinois.