公开(公告)号：US20250028089A1

公开(公告)日：2025-01-23

申请号：US18490121

申请日：2023-10-19

Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Yeongmyeong PARK ,  Youngjin KIM ,  Gun-Yeal LEE ,  Byoungho LEE ,  Yoonchan JEONG

IPC: G02B3/00 ,  B82Y20/00 ,  G02B1/00 ,  G02B13/00 ,  H04N23/80

Abstract: A double sided meta lens includes a substrate having a first surface and a second surface facing each other, a first meta lens that includes a plurality of first nanostructures arranged on the first surface of the substrate and exhibits a first phase profile, and a second meta lens that includes a plurality of second nanostructures arranged on the second surface of the substrate and exhibits a second phase profile. The first phase profile may be configured such that a central region of the first meta lens operates as a convex lens and a peripheral region of the first meta lens operates as a concave lens, and the second phase profile may correspond to a focusing lens and has a section in which an absolute value of a phase slope increases with distance from a center of the second meta lens.