公开(公告)号：US20250102804A1

公开(公告)日：2025-03-27

申请号：US18774913

申请日：2024-07-16

Applicant: ASUSTeK COMPUTER INC.

Inventor： Wen-Chang Hung ,  Ting-Wei Huang ,  Bo-Kai Zhang ,  Ji-Ping Sheng

IPC: G02B27/01 ,  G02B6/34

Abstract: An optical waveguide element, including a first optical waveguide, a second optical waveguide, a third optical waveguide, and a grating, is provided. The second optical waveguide is disposed on the first optical waveguide. The third optical waveguide is disposed on the second optical waveguide. The grating is disposed between the first optical waveguide and the second optical waveguide. A refractive index of the second optical waveguide is smaller than a refractive index of the first optical waveguide and a refractive index of the third optical waveguide. A head-mounted display is also provided.