公开(公告)号：US20220082673A1

公开(公告)日：2022-03-17

申请号：US17536556

申请日：2021-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young-gu JIN ,  Young-chan KIM ,  Chang-rok MOON ,  Yong-hun KWON ,  Tae-sub JUNG

IPC: G01S7/499 ,  H01L27/146 ,  G01S7/481 ,  G02B5/30 ,  G01S17/42

Abstract: A 3D image sensor include a depth pixel and at least two polarization pixels adjacent to the depth pixel. The depth pixel includes a charge generation region in a substrate. The depth pixel is configured to generate depth information associated with a depth of an object from the 3D image sensor in a 3D scene based on detecting light reflected from the object. Each polarization pixel includes a photodiode in the substrate and a polarizer on the substrate in a light-incident direction. The polarization pixel is configured to generate shape information associated with a shape of a surface of the object in the 3D scene based on detecting light reflected from the object. The polarization pixels and the depth pixel collectively define a unit pixel. The respective polarizers are associated with different polarization directions.