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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 2 — Jan. 15, 1984
  • pp: 200–203

The Bust of the Tyrant: an optical illusion

Wolfgang Dultz  »View Author Affiliations


Applied Optics, Vol. 23, Issue 2, pp. 200-203 (1984)
http://dx.doi.org/10.1364/AO.23.000200


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Abstract

The spectacular optical illusion of the hollow mask is considerably improved by filling the mask with a transparent medium. The mask seems to stare more directly at the onlooker and its deceptive motions follow his movements over a wider field. The history of the illusion of the hollow mask is outlined and the legend of the Bust of the Tyrant is invented. Other ways of making a bust which follows the moving onlooker face to face are discussed.

© 1984 Optical Society of America

History
Original Manuscript: August 23, 1983
Published: January 15, 1984

Citation
Wolfgang Dultz, "The Bust of the Tyrant: an optical illusion," Appl. Opt. 23, 200-203 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-2-200

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