公开(公告)号：US10222742B2

公开(公告)日：2019-03-05

申请号：US15458871

申请日：2017-03-14

Applicant: Rambus Inc.

Inventor： Patrick R. Gill ,  David G. Stork ,  Mehjabin Sultana Monjur ,  Luke A. Pfister

IPC: G02B5/18 ,  G03H1/04 ,  H01L27/146 ,  H04N5/225 ,  G03H1/02

Abstract: An optical phase grating produces an interference pattern rich in intensity and spatial-frequency information from the external scene. The grating includes an odd number of repeated sets of adjacent horizontal portions, separated by steps, that fill an area that radiates outward from a central region. At a given distance from the central region and within the area of the phase grating, each of the first horizontal portions is of a first width that differs from a second width of the adjacent second horizontal portions. The interference patterns produced by the grating can be processed to extract images and other information of interest about an imaged scene.

公开(公告)号：US20170300011A1

公开(公告)日：2017-10-19

申请号：US15458871

申请日：2017-03-14

Applicant: Rambus Inc.

Inventor： Patrick R. Gill ,  David G. Stork ,  Mehjabin Sultana Monjur ,  Luke A. Pfister

IPC: G03H1/04 ,  G03H1/00 ,  H04N5/33

CPC classification number: G03H1/041 ,  G02B5/1871 ,  G03H1/0244 ,  G03H1/0443 ,  G03H2223/13 ,  H01L27/14625 ,  H04N5/2251

Abstract: An optical phase grating produces an interference pattern rich in intensity and spatial-frequency information from the external scene. The grating includes an odd number of repeated sets of adjacent horizontal portions, separated by steps, that fill an area that radiates outward from a central region. At a given distance from the central region and within the area of the phase grating, each of the first horizontal portions is of a first width that differs from a second width of the adjacent second horizontal portions. The interference patterns produced by the grating can be processed to extract images and other information of interest about an imaged scene.