Precision Optics Corporation, Inc. designs, develops, manufactures, and sells specialized optical and illumination systems and related components primarily in the United States and the European Economic Area. It offers medical instrumentation products, including endoscopes and endocouplers, as well as other custom imaging and illumination products, such as Microprecision lenses and micro medical cameras, and 3D endoscopes for use in minimally invasive surgical procedures by hospitals and physicians. The company also provides components and assemblies for industrial and military use. It markets its products to medical device companies. The company was incorporated in 1982 and is based in Gardner, Massachusetts.