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Integral imaging using phase-only LCoS spatial light modulators as Fresnel lenslet arrays |
JOSA A, Vol. 28, Issue 11, pp. 2359-2375 (2011)
http://dx.doi.org/10.1364/JOSAA.28.002359
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Abstract
We present a digital integral imaging system. A Fresnel lenslet array pattern is written on a phase-only LCoS spatial light modulator device (SLM) to replace the regular analog lenslet array in a conventional integral imaging system. We theoretically analyze the capture part of the proposed system based on Fresnel wave propagation formulation. Because of pixelation and quantization of the lenslet array pattern, higher diffraction orders and multiple focal points emerge. Because of the multiple focal planes introduced by the discrete lenslets, multiple image planes are observed. The use of discrete lenslet arrays also causes some other artifacts on the recorded elemental images. The results reduce to those available in the literature when the effects introduced by the discrete nature of the lenslets are omitted. We performed simulations of the capture part. It is possible to obtain the elemental images with an acceptable visual quality. We also constructed an optical integral imaging system with both capture and display parts using the proposed discrete Fresnel lenslet array written on a SLM. Optical results when self-luminous objects, such as an LED array, are used indicate that the proposed system yields satisfactory results.
© 2011 Optical Society of America
OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.4190) Imaging systems : Multiple imaging
(110.6880) Imaging systems : Three-dimensional image acquisition
ToC Category:
Imaging Systems
History
Original Manuscript: June 10, 2011
Revised Manuscript: September 13, 2011
Manuscript Accepted: September 15, 2011
Published: October 27, 2011
Citation
Ali Özgür Yöntem and Levent Onural, "Integral imaging using phase-only LCoS spatial light modulators as Fresnel
lenslet arrays," J. Opt. Soc. Am. A 28, 2359-2375 (2011)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-28-11-2359
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