Patchwork Fresnel zone plates for lensless imaging

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United States of America Patent

PATENT NO 9746593
SERIAL NO

14458179

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Abstract

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Described are imaging devices that employ patchworks of diffractive structures as focusing optics. Each diffractive structure best focuses light over a relatively narrow cone of incident angles, and provides suboptimal focusing for incident angles outside that cone. Different diffractive structures best focus different angular ranges, with the patchwork thus providing an overall focusable response for the relatively broad range of angles required to image a scene. Images can be captured without a lens, and cameras can be made smaller than those that are reliant on lenses and ray-optical focusing.

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Patent Owner(s)

  • RAMBUS INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endsley, Jay A San Jose, US 11 726
Gill, Patrick R Sunnyvale, US 38 176
Stork, David G Portola Valley, US 80 3754

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