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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 6, Iss. 9 — Sep. 1, 1967
  • pp: 1559–1561

Out-of-Focus Images; Some Properties, Uses, and a Geometrical Explanation

W. J. Harrison  »View Author Affiliations


Applied Optics, Vol. 6, Issue 9, pp. 1559-1561 (1967)
http://dx.doi.org/10.1364/AO.6.001559


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Abstract

Out-of-focus images tend to move and split when obstructions are passed through or near the nodal planes of the image forming lens, while in-focus images do not show such effects. Geometrical optics is used to produce a qualitative explanation of these effects with the object of utilizing them for automatic focusing and rangefinding devices. Several problems in such devices are briefly discussed and a proposed automatic rangefinder is described.

© 1967 Optical Society of America

History
Original Manuscript: December 21, 1966
Published: September 1, 1967

Citation
W. J. Harrison, "Out-of-Focus Images; Some Properties, Uses, and a Geometrical Explanation," Appl. Opt. 6, 1559-1561 (1967)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-6-9-1559

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