公开(公告)号：US20250116804A1

公开(公告)日：2025-04-10

申请号：US18484024

申请日：2023-10-10

Applicant: GOOGLE LLC

Inventor： Huihang Dong ,  Warren Cornelius Welch, III ,  Kang Luo ,  Wei Jin

IPC: F21V8/00 ,  G02B26/10 ,  G02B27/00 ,  G02B27/01

Abstract: A waveguide includes a set of grating structures forming a component on the surface of the waveguide. The set of grating structures is configured to direct light received at the component based on a parameter of one or more grating structures of the set of grating structures. Further, the waveguide includes a first transition area disposed adjacent to a first side of the component wherein the parameter is modulated across the grating structures of the first transition area. Additionally, the waveguide includes a second transition area disposed adjacent to a second, opposite side of the component wherein the parameter is also modulated across the grating structures of the second transition area.