公开(公告)号：US10776645B2

公开(公告)日：2020-09-15

申请号：US15626367

申请日：2017-06-19

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

Inventor： 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: G06K9/00 ,  A61B5/0452 ,  G06K9/20 ,  G06K9/22

Abstract: 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.

公开(公告)号：US20240102859A1

公开(公告)日：2024-03-28

申请号：US18010430

申请日：2022-09-07

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ki Hun Jeong ,  Jung Woo Park ,  Jae Hun Jeon ,  Gi Beom Kim

IPC: G01J3/02 ,  G01J3/04 ,  G01J3/18 ,  G01J3/28

CPC classification number: G01J3/0259 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/04 ,  G01J3/18 ,  G01J3/2803

Abstract: The disclosure relates to an ultrathin micro-spectrometer and a method of manufacturing the same, and more particularly, relates to an ultrathin micro-spectrometer including: a lens portion including: a convex lens; and a back-reflection grating layer which is formed on a rear surface of the convex lens and on the same surface of which a reflective diffraction grating and a first planar reflector are arranged; a substrate layer which is disposed to be spaced apart from the lens portion and on which a light incidence microslit is formed; a second planar reflector which is formed on the substrate layer; and a complementary metal-oxide-semiconductor (CMOS) sensor on which light reflected by the lens portion is focused, and a method of manufacturing the same.