Integral imaging using phase-only LCoS spatial light modulators as Fresnel lenslet arrays
- 27 October 2011
- journal article
- research article
- Published by Optica Publishing Group in Journal of the Optical Society of America A
- Vol. 28 (11), 2359-2375
- https://doi.org/10.1364/josaa.28.002359
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.Keywords
Funding Information
- European Commission (216105)
This publication has 20 references indexed in Scilit:
- Curved Projection Integral Imaging Using an Additional Large-Aperture Convex Lens for Viewing Angle ImprovementETRI Journal, 2009
- Resistance of the double random phase encryption against various attacksOptics Express, 2007
- Analysis of 3-D Integral Imaging Displays Using the Wigner DistributionJournal of Display Technology, 2006
- Efficient implementation of a spatial light modulator as a diffractive optical microlens array in a digital Shack-Hartmann wavefront sensorApplied Optics, 2006
- Wide-viewing-angle integral three-dimensional imaging system by curving a screen and a lens arrayApplied Optics, 2005
- Integral imaging with improved depth of field by use of amplitude-modulated microlens arraysApplied Optics, 2004
- Gradient-index lens-array method based on real-time integral photography for three-dimensional imagesApplied Optics, 1998
- Real-time pickup method for a three-dimensional image based on integral photographyApplied Optics, 1997
- Diffraction theory of Fresnel lenses encoded in low-resolution devicesApplied Optics, 1994
- Optical Properties of a Lippmann Lenticulated SheetJournal of the Optical Society of America, 1931