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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 35 — Dec. 10, 2012
  • pp: 8401–8406

Illumination uniformity optimization of position-sensitive detector sensing optical system by circular and annular obscurations

Xing Zhong, Lei Zhang, and Guang Jin  »View Author Affiliations


Applied Optics, Vol. 51, Issue 35, pp. 8401-8406 (2012)
http://dx.doi.org/10.1364/AO.51.008401


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Abstract

In order to increase the illumination uniformity of the position-sensitive detector (PSD) in a sensing optical system, an optimization method is introduced in this paper. The ratio of the oblique ray section to the paraxial ray section is adjusted by circular and annular obscurations with different parameters; thus, the relative illumination on the image plane can be optimized. In our case, the size and position of the circular and annular obscurations are optimization variables. The result shows illumination uniformity on a PSD is enhanced from the original 12%–69.7%, and the precision is greatly improved. The method in this paper is proved to be effective and low cost and to have potential in many other applications.

© 2012 Optical Society of America

OCIS Codes
(080.3620) Geometric optics : Lens system design
(220.4830) Optical design and fabrication : Systems design
(110.2945) Imaging systems : Illumination design
(150.2945) Machine vision : Illumination design
(220.2945) Optical design and fabrication : Illumination design

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: September 26, 2012
Revised Manuscript: November 2, 2012
Manuscript Accepted: November 2, 2012
Published: December 6, 2012

Citation
Xing Zhong, Lei Zhang, and Guang Jin, "Illumination uniformity optimization of position-sensitive detector sensing optical system by circular and annular obscurations," Appl. Opt. 51, 8401-8406 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-35-8401

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