[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3807/KJOP.2012.23.4.147

Optical Approach for Increasing the Resolution of Displayed Multi-view Image from Projection Type of Auto-stereoscopic 3D Display System by Adopting a Commercial Spherical Lenticular Lens Sheet

Sohn, Young-Sub (Department of Electrical and Electronic Engineering, Yonsei University)
Kim, Sung-Kyu (3D-Lab, IMRC, Korea Institute of Science and Technology)
Sohn, Kwanghoon (Department of Electrical and Electronic Engineering, Yonsei University)
Lee, Kwang-Hoon (3D Convergence Technology Research Center, Korea Photonics Technology Institute)

Publication Information

Korean Journal of Optics and Photonics / v.23, no.4, 2012 , pp. 147-153 More about this Journal

Abstract

Multi-view 3D displays based on a limited number of pixels have the problem that the stereo-scopic image has a low resolution because of increasing view number. To solve the problem of low resolution, we propose an optical approaching method that focuses the width of a unit pixel by using a commercial spherical shape lenticular lens sheet and increases the effective resolution by increasing the number of sources of light in the multi-view 3D display system based on projection type. The method was performed in such an order that several main derivable parameters were defined, and, through the theoretical and experimental result, the value of the contractible unit pixel width and the scalable effective resolution was derived in a given system environment. As a result, for the case that the ray of light from the projector transmitted the 25 LPI lenticular lens sheet which has the pitch size 1.016 mm, the focused unit pixel width was 0.19 mm and the scalable effective resolution was, at most, 5 times wider than the original one. In addition, the range of depth of focus was 1.496 mm, which shows us the range of thickness tolerances of commercial spherical shape lenticular lens sheet and sufficient optical alignment tolerances.

Keywords

Beam waist; DOF; Auto-stereoscopic multi-view 3D display; Lenticular lens sheet; Beam propagation property;

Citations & Related Records

Reference

1	T. F. Johnston Jr. and T. F. Johnston, "Beam propagation (M2) measurement made as easy as it gets: the four-cuts method," Appl. Opt. 37, 4840-4850 (1998). DOI
2	N. A. Dodgson, "Autostereoscopic 3D displays," IEEE Computer Society 38, 31-36 (2005). DOI ScienceOn
3	L. Kong, G. Jin, and X. Zhong, "An auto-stereoscopic projecting system based on parallax barrier and lenticular sheets," in Proc. Multimedia Technology (ICMT) (Zhejiang Braim International Hotel, China, July 2011), pp. 4-12.
4	J. Courtial, "Standard and non-standard metarefraction with confocal lenslet arrays," Opt. Commun. 282, 2634-2641 (2009). DOI
5	E. Hecht, Optics (Addison Wesley, New York, USA, 2004), pp. 100-104.
6	J. Vasco, P. J. Bártolo, B. Silva, and C. Galo, "Laser micromachining for mould manufacturing: II. manufacture and testing of mould inserts," Assembly Automation 27, 231-239 (2007). DOI
7	K. Roundy, "Propagation factor quantifies laser beam performance," Laser Focus World 12, 119-122 (1999).