Max Knoll (17 July 1897 – 6 November 1969)[1] was a German electrical engineer and co-inventor of the electron microscope.
[2][3] In April 1932, Knoll joined Telefunken in Berlin to do developmental work in the field of television design.
[citation needed] After World War II, Knoll joined the University of Munich as an extraordinary professor and director of the Institute for Electromedicine.
[citation needed] In 1956 he returned to Munich and engaged in a series of experiments at the Technische Hochschule, involving the generation of phosphenes by electrically stimulating the brains of himself and other subjects.
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