SPIE-the International Society for Optical Enging SPIE-The international Society for Optical Enging SPIE-the International Society for Optical Engineering SPIE-the Insternational Society for Optical Engineering SPIE-The International Society for Optical Engineering SPIE-the International Society for Oprical Engineering (Berlin)SPIE-the International Society for Optical Enging SPIE-The international Society for Optical Engineering SPIE-the International Society for optical engineering SPIE-he International Sociey for Optical Engineering