公开(公告)号：US10776645B2

公开(公告)日：2020-09-15

申请号：US15626367

申请日：2017-06-19

申请人： Samsung Electronics Co., Ltd. ,  Korea Advanced Institute of Science and Technology

发明人： Hyun Jae Baek ,  Ki Hun Jeong ,  Young Jae Oh ,  Jung Woo Park ,  Kyung Won Jang ,  Chan Sol Hwang ,  Jae Wook Shin ,  Jae Geol Cho

IPC分类号： G06K9/00 ,  A61B5/0452 ,  G06K9/20 ,  G06K9/22

摘要： A sensor for sensing biometric information includes a light emitting unit that emits a first light ray, a light receiving unit that receives a second light ray, where the second light ray includes a portion of the first light ray reflected by a body of a user, and an optical layer placed over the light emitting unit and the light receiving unit. The optical layer has a first surface facing the light emitting unit and the light receiving unit and a second surface opposite the first surface. The optical layer further includes an asymmetrical protrusion structure formed on the first surface or the second surface and including a plurality of asymmetrical protrusion units. The optical layer may further include a symmetrical protrusion structure formed on the first surface or the second surface opposite the asymmetrical protrusion structure and including a plurality of symmetrical protrusion units.