DIRECTORY_1997#4384 new approved FotoMuseum Provincie Antwerpen conventionDeclaration ISAAR(CPF): Internationale norm voor archivistische geautoriseerde beschrijvingen van organisaties, personen en families, Antwerpen/Leuven/Amsterdam 2006. detailLevel http://ica-atom.org/doc/RS-2#5.4 created January 2, 2015 10:51:00 AM CET human revised July 18, 2018 6:52:52 PM CEST human Person (Male) person Van de Velde, Philippe conventionDeclaration Amateur conventionDeclaration Ghent, 1796 - Ghent, 1871 1839 * - 1842 Gand

<b>1839 * - 1842 Gand</b> ° 18.7.1796; + 31.3.1871. Justice at the Court of First Instance in Ghent. It was in his home that François Braga and Joseph Pelizzaro (see those names) conducted their first experiments. He became an amateur daguerreotypist himself. In 1842 the "Académie royale des sciences de Belgique" published the results of his research into improving exposure time (5 to 40 seconds) using bromine as an "accelerating substance".