photogramshttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431623enGetty Institute2026-03-30 20:56:27http://AATesaurus.cultura.gencat.cat/aat/getty_enTesaurus d'Art i Arquitecturatext/html Rayographs Schadograms Schadographs cameraless images cameraless photographs lensless photographs photogram photographs, cameraless photographs, lensless physiotypes rayograms shadow pictures shadowgraphs