OSA's Digital Library

Applied Optics

Applied 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)

View Full Text Article

Acrobat PDF (577 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



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

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

W. J. Harrison, "Out-of-Focus Images; Some Properties, Uses, and a Geometrical Explanation," Appl. Opt. 6, 1559-1561 (1967)

Sort:  Journal  |  Reset


References are not available for this paper.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited