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Viewing-angle-enhanced integral imaging system using a curved lens array

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Abstract

We propose an enhanced three-dimensional integral imaging system using a curved lens array. Incorporation of a curved lens array instead of a conventional flat lens array expands the viewing angle remarkably. The flipped images are eliminated effectively by adopting barriers. The principle of the proposed system is explained and the experimental results are also presented.

©2004 Optical Society of America

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Supplementary Material (1)

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Figures (9)

Fig. 1.
Fig. 1. Limitation of viewing angle: observer-1 is in viewing zone and observer-2 is out of the viewing zone.
Fig. 2.
Fig. 2. (a) Configuration of the curved lens array system (b) computer-generated elemental images of the conventional case (top) and the curved lens array case (bottom).
Fig. 3.
Fig. 3. Enhanced viewing angle of the curved lens array system.
Fig. 4.
Fig. 4. Elimination of the flipped images with barriers in curved lens array system.
Fig. 5.
Fig. 5. Experimental setup without the barriers; the radius of curvature of the curved lens array is 10 cm.
Fig. 6.
Fig. 6. Images integrated by the proposed method (a) without barriers (b) with barriers. The integrated images are observed from the center
Fig. 7.
Fig. 7. Integrated images from different view points (a) by the conventional method (b) by the proposed method with barriers.
Fig. 8.
Fig. 8. Integrated images by the proposed method from (a) left 16.5° (b) center (c) right 16.5°.
Fig. 9.
Fig. 9. Movie of integrated images observed from different viewing directions [1.85MB].

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

G n = ( g + d ) [ sec ( 2 n θ ) 1 ] ,
θ = arctan ( φ 2 d ) ,
Ω = n max × 2 arctan ( φ 2 d ) .
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