Richard Vollmerhausen, PhD
A founding member and Chief Engineer of St. Johns Optical Systems. He was a first LT in the U.S. Army and received his Ph.D. in Electrical Engineering from the University of Delaware. He has experience as an instrumentation engineer at Douglas Aircraft and as a Staff Physicist at the Naval Weapons Center at China Lake. He joined the Air System Branch of the US Army Night Vision Lab and in 1985 became Branch Head of the Air System Branch.
In 1997, he became Branch Head of the Model Development Branch in the Night Vision and Electronic Sensors Directorate. There, he developed the Target Task Performance (TTP) metric which is currently used today for the design of all U.S. and most NATO electro-optical weapon sights. He developed the current pilotage model and was instrumental in developing and fielding the majority of night vision pilotage systems. He has published close to 100 research papers, chapters on electro-optical system performance, and two books on imaging system performance.