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Koenderink, J. (author), Wijntjes, M. (author), Van Doorn, A. (author)
The “zograscope” is a “visual aid” (commonly known as “optical machine” in the 18th century) invented in the mid-18th century, and in general use until the early 20th century. It was intended to view single pictures (thus not stereographic pairs) with both eyes. The optics approximately eliminates the physiological cues (binocular disparity,...
journal article 2013