Signedunder instrument: PHOTO RESEARCH / KOLLMORGEN CORP.
FunctionUsed by Land for his experiments with color vision (Retinex theory). It was also most likely used in Land's famous lectures on the same topic.
Primary SourcesEdwin H. Land, "The Retinex Theory of Color Vision," Scientific American 237 (1977): 108-128.
Edwin H. Land, "Recent Advances in Retinex Theory and Some Implications for Cortical Computations: Color Vision and the Natural Image," Proceedings of the National Academy of Sciences of the United States of America 80 (1983): 5163-5169.
Edwin H. Land, "An Alternative Technique for the Computation of the Designator in the Retinex Theory of Color Vision," Proceedings of the National Academy of Sciences of the United States of America 83 (1986): 3078-3080.
ProvenanceThis object belonged to Edwin H. Land and came from the Rowland Institute, Harvard University. Gift of the Edwin H. Land Family.