English: Oswald Leroy Team 1972-2001. Picture made on the occasion of Oswald Leroy’s retirement in 2001. The pictures shows Oswald Leroy with the main entrance of the Catholic University of Leuven Campus Kortrijk (KULAK) in the background as well as some mathematical formulas that have played a role in Leroy’s long career in acousto-optics. In addition a picture is shown, taken in 2001, of each person who ever became a doctor under Leroy’s supervision from 1972 until 2001, including those who had not graduated yet in 2001. We retrieve, ordered by date, Frans Poleunis, Jean-Marie Claeys, Erik Blomme, Katrien Mampaert, Koen Van Den Abeele, Rudy Briers, Stefaan Devolder, Filip Windels, Jeroen Vandeputte, Sigfried Vanaverbeke and Nico Declercq.