HAWTHORNE, Calif., August 1 -- OSI Systems Inc. announced it has received approximately $1.2 million in follow-on orders for electronic components and value-added assemblies from InVision Technologies for its explosives detection dystems. These orders are based on orders InVision received from the Transportation Security Administration and are a follow-on to previous orders OSI Systems received in March. OSI Systems expects to complete shipments on the combined orders to InVision by the end of this year.