公开(公告)号：US20240069248A1

公开(公告)日：2024-02-29

申请号：US18119591

申请日：2023-03-09

Applicant: Apple Inc.

Inventor： Mohamed Mahmoud ,  Huiyang Deng ,  Satyarth Suri ,  Jason S. Pelc ,  Peter L. Chang

IPC: G02B1/118 ,  G02B1/02 ,  G02B6/122

CPC classification number: G02B1/118 ,  G02B1/02 ,  G02B6/122 ,  G02B2006/12061

Abstract: Anti-reflective optical structures are disclosed. The anti-reflective optical structures include sub-wavelength structures in order to produce one or more index of refraction gradients within the anti-reflective optical structures. The one or more index of refraction gradients can reduce reflection of light over a broad band of wavelengths.