Luna Innovations Inc., an advanced optical technology manufacturer, has announced it has closed on the divestiture of its Optoelectronic Solutions (OPTO) business to OSI Optoelectronics Inc., a subsidiary of OSI Systems Inc., for up to $18.5 million. OSI Systems Inc. is a vertically integrated designer and manufacturer of specialized electronic systems and components for critical applications in the homeland security, health care, defense, and aerospace industries.