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Applied Optics

Applied Optics


  • Vol. 43, Iss. 31 — Nov. 1, 2004
  • pp: 5806–5813

Integral imaging with improved depth of field by use of amplitude-modulated microlens arrays

Manuel Martínez-Corral, Bahram Javidi, Raúl Martínez-Cuenca, and Genaro Saavedra  »View Author Affiliations

Applied Optics, Vol. 43, Issue 31, pp. 5806-5813 (2004)

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One of the main challenges in three-dimensional integral imaging is its limited depth of field. Such a limitation is imposed by diffraction, among other factors. The easiest way to improve the depth of field is by reducing the numerical aperture of the microlenses. However, such an improvement is obtained at the expense of an important deterioration in the spatial resolution. We propose a technique, which is novel in the context of integral imaging, for improving the depth of field with no deterioration of the spatial resolution. The technique, based on amplitude modulation of the array of phase elements, can substantially improve the figure of merit of the product of depth of the focus and the squared resolution.

© 2004 Optical Society of America

OCIS Codes
(110.4190) Imaging systems : Multiple imaging
(110.6880) Imaging systems : Three-dimensional image acquisition
(350.5730) Other areas of optics : Resolution

Original Manuscript: November 14, 2003
Revised Manuscript: June 14, 2004
Manuscript Accepted: July 6, 2004
Published: November 1, 2004

Manuel Martínez-Corral, Bahram Javidi, Raúl Martínez-Cuenca, and Genaro Saavedra, "Integral imaging with improved depth of field by use of amplitude-modulated microlens arrays," Appl. Opt. 43, 5806-5813 (2004)

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