HAWTHORNE, Calif.--(BUSINESS WIRE)--OSI Systems, Inc. (NASDAQ: OSIS), today announced that it will be presenting at the Stephens Spring Investment Conference on Tuesday, June 2, 2015 at 10:00 AM ET. About OSI Systems, Inc. OSI Systems, Inc. is a vertically integrated designer and manufacturer of specialized electronic systems and components for critical applications in the homeland security, healthcare, defense and aerospace industries. We combine more than 30 years of electronics engineering a