L-R Ronald and Joost Kahlman, Magnetic-Optical recording press day, htc (WAG) Eindhoven, May 25 1982.



L-R Ronald and Warner ten Kate, Sony Mediaworld Tokyo, Sept. 1992.



L-R Robert Toonen Dekkers, Ronald, and Hayan He, former anechoic chamber htc (WO) Eindhoven, 1996. Picture by Reinout van den Berg.



L-R Kees Immink, Achil Janssen, Henk v.d. Heijden, Niek Verhoeckx, and Ronald Aarts, sitting: Carel Dijkmans, farewell party Jan Smeding, htc Eindhoven, 1998.



L-R Kees and Clasien Immink, Ronald and Doortje Aarts, near the Golden Gate Bridge San Francisco, Oct. 8 2006.



L-R Joseph Braat, Chris van Heesch, Ad Leeuwenstijn, dr 'Guido' Jansen, and Ronald, four authors of the paper the 'Analytic expressions and approximations for the on-axis, aberration-free Rayleigh and Debye integral in the case of focusing fields on a circular aperture', htc Eindhoven, 2008.



L-R Martin van den Mark, Bert Spierings, Henk Hagenbeuk, Ronald Aarts, Ronald Dekker, Margret Engels, Mart Graef, Pieter Hooijmans, Teun Baller, Reinout Woltjer, Derk Reefman, Former Sinterklazen at Philips Research (NatLab), at the 25 yr jubilee of Martin, Grand Cafe htc Eindhoven, Sept. 29 2015.



L-R Bart Kroon, Mark Johnson, Patrick van der Walle, Ronald Aarts, Vincent Aarts, just before the 1/2 marathon at Eindhoven Oct. 11 2015.



L-R Stan Baggen, Joseph Braat, Joost Kahlman, Gerard van Rosmalen, Jan van de Werf, Nico van Heijningen, Wil Ophey, Ton Akkermans, Ronald, Former Philips Research (NatLab) colleagues, htc Eindhoven, Oct. 14 2015.



L-R Harm Belt, Radu Jasinschi, Ine van den Broek, Ronald, Charles Sio, Okke Ouweltjes, Gerben Kooijman, Daniel Schobben, htc Grand Cafe Eindhoven, Celebrating Ronald's 200th First Patent Filing, Grand Cafe htc Eindhoven, Dec. 10 2015.



L-R H. Kamabe, Jos Weber, Peter de With, Han Vinck, Kees Immink, Ronald Aarts, John Watkinson, and Dirk van Hertem, Speakers at the IEEE Symposium in honor of Kees Schouhamer Immink at Royal Maas Yacht Club, Rotterdam, June 16, 2017.


L-R Alberto Bonomi, Linda M. Eerikäinen, Fons Schipper, Ronald, Paul Dillen, at the CinC (Computing in Cardiology), Maastricht, Netherlands, Sept. 23-26 2018.


L-R: Ad Huijser (former CTO Philips), Joseph Braat, Ronald, and Gilles Holst jr, after Joseph's Holst Memorial Lecture Award, the 43rd since 1977, Auditorium TU/e, Nov. 21 2019.


WIC symposium in honor of Frans Willems, Auditorium TU/e, Nov. 5 2021. Photo by Ronald Rietman.