公开(公告)号：US20200033584A1

公开(公告)日：2020-01-30

申请号：US16521378

申请日：2019-07-24

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Ki-Hun JEONG ,  Sung-Pyo YANG ,  Jaebeom KIM

IPC: G02B23/24 ,  A61B1/00

Abstract: A subminiature pattern projector using rotational superposition of multiple optical diffraction elements is disclosed. A three-dimensional (3D) endoscope having the pattern projector is also disclosed. The 3D endoscope has a pattern projector that forms a pattern having high density and uniformity for acquiring a 3D image by using an angle offset between two or more optical diffraction elements. The pattern projector irradiates an optical diffraction pattern for shooting the 3D image, or includes a function as illumination for illuminating a region of interest in a human body.