Optics and the old masters

Charles M. Falco, David Hockney
2004 Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing   unpublished
We have discovered a wealth of optical evidence within a variety of paintings produced as early as c1425 that artists such as Jan van Eyck used optical projections as aids for their work. These discoveries demonstrate that optical instruments were in use over 150 years earlier than is widely thought possible.
doi:10.1364/fio.2004.fww4 fatcat:rnsaa24hk5ailgao44wf24cv6i