公开(公告)号：US09746593B2

公开(公告)日：2017-08-29

申请号：US14458179

申请日：2014-08-12

Applicant: Rambus Inc.

Inventor： Patrick R. Gill ,  David G. Stork ,  Jay A. Endsley

IPC: G02B5/18 ,  H04N5/225

CPC classification number: G02B5/1842 ,  H04N5/2254

Abstract: 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.

公开(公告)号：US20150219808A1

公开(公告)日：2015-08-06

申请号：US14458179

申请日：2014-08-12

Applicant: Rambus Inc.

Inventor： Patrick R. Gill ,  David G. Stork ,  Jay A. Endsley

IPC: G02B5/18 ,  H04N5/225

CPC classification number: G02B5/1842 ,  H04N5/2254

Abstract: 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.

Abstract translation: 描述了使用衍射结构的拼接作为聚焦光学元件的成像装置。 每个衍射结构最好将光聚焦在相对较窄的入射角锥上，并为该锥体外的入射角提供次优聚焦。 不同的衍射结构最佳地聚焦不同的角度范围，因此拼接物为对场景成像所需的相对较宽的角度范围提供总体可聚焦的响应。 图像可以在没有镜头的情况下被捕获，并且相机可以比依赖于镜头和射线光学聚焦的照相机更小。