OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 28 — Oct. 1, 2009
  • pp: 5371–5379

Incoherently combining logarithmic aspheric lenses for extended depth of field

Kaiqin Chu, Nicholas George, and Wanli Chi  »View Author Affiliations


Applied Optics, Vol. 48, Issue 28, pp. 5371-5379 (2009)
http://dx.doi.org/10.1364/AO.48.005371


View Full Text Article

Enhanced HTML    Acrobat PDF (870 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We describe a method for combining concentric logarithmic aspheric lenses in order to obtain an extended depth of field. Substantial improvement in extending the depth of field is obtained by carefully controlling the optical path difference among the concentric lenses so that their outputs combine incoherently. The system is analyzed through diffraction theory and the point spread function is shown to be highly invariant over a long range of object distances. After testing the image performance on a three-dimensional scene, we found that the incoherently combined logarithmic aspheres can provide a high-quality image over an axial distance corresponding to a defocus of ± 14 ( λ / 4 ) . Studies of the images of two-point objects are presented to illustrate the resolution of these lenses.

© 2009 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(100.1830) Image processing : Deconvolution
(110.5220) Imaging systems : Photolithography
(220.1000) Optical design and fabrication : Aberration compensation
(260.1960) Physical optics : Diffraction theory
(350.4600) Other areas of optics : Optical engineering

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: June 25, 2009
Revised Manuscript: September 1, 2009
Manuscript Accepted: September 1, 2009
Published: September 22, 2009

Citation
Kaiqin Chu, Nicholas George, and Wanli Chi, "Incoherently combining logarithmic aspheric lenses for extended depth of field," Appl. Opt. 48, 5371-5379 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-28-5371

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited