Precision Optics Corporation, Inc. designs, develops, manufactures and sells specialized optical and illumination systems and related components. The Company manufactures products in two areas: medical products for use by hospitals and physicians, and products used by military and industrial customers. Its medical instrumentation line includes traditional endoscopes and endocouplers, as well as other custom imaging and illumination products for use in minimally invasive surgical procedures. It manufactures three dimensional (3D) endoscopes and small Microprecision lenses. The Company develops and sells endoscopes integrating various optical technologies, including its Lenslock technology, for use in a range of minimally invasive surgical and diagnostic procedures. The Company also designs and manufactures custom optical medical devices for its customers' specific requirements. It also manufactures and sells components and assemblies specially designed for industrial and military use.