Abstract
We propose an integral floating display using two retro-reflector arrays. The proposed method is composed of an integral imaging display, a half mirror, and two retro-reflector arrays. In this paper, the depth-resolution limit and the small complete viewing range for real image in conventional integral imaging are theoretically analyzed, and can be improved much in the proposed method. The floating 3-D image looks of high-quality with smooth surface without the influence of the lens array structure. Experiments are performed to verify the method.
Highlights
Integral imaging (InIm) is a promising technique for achieving glasses-free 3-D display which has a long history [1]
The previous integral floating display methods used a large convex lens to produce a 3-D image with great feel of depth by forming a real image of the 3-D image integrated by the InIm technique
We propose an integral floating 3-D display using two retroreflector array (RRA) to eliminate the depth-resolution limit and enlarge the complete viewing range for real image in InIm
Summary
Integral imaging (InIm) is a promising technique for achieving glasses-free 3-D display which has a long history [1]. A pinhole array or a lens array is used to record and reconstruct light rays of different directions in space It has many advantages such as reconstructing 3-D images with fullparallax and a quasi-continuous viewing points. The previous integral floating display methods used a large convex lens to produce a 3-D image with great feel of depth by forming a real image of the 3-D image integrated by the InIm technique. This kind of integral floating display suffers from problems such as narrow viewing window [8], imaging aberration of large-diameter floating lens, and deformed shape of floating image [10]. Compared to integral floating display using a floating lens, the proposed method doesn’t have the problems of viewing window, imaging aberration of large-diameter floating lens and deformed shape of floating image
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