公开(公告)号：US20250093646A1

公开(公告)日：2025-03-20

申请号：US18806514

申请日：2024-08-15

Applicant: Apple Inc.

Inventor： Pablo Benitez Gimenez ,  Julio Chaves ,  Dejan Grabovickic ,  Juan Carlos Minano Dominguez ,  Zachary A Granger

IPC: G02B27/01

Abstract: An electronic device may include a display with a display panel that emits light into an optical system. The system provides the light and world light to an eye box. The system may be implemented using a folded birdbath architecture. The system may include a partial reflector and a reflective polarizer in freeform curved rotationally asymmetric surfaces. The system may include two or three optical wedges. An air gap may separate two of the wedges. A quarter waveplate may be layered over the reflective polarizer and/or the partial reflector. A privacy filter may overlap the partial reflector. The wedges may perform total internal reflections on the light. The system may provide a horizontal field of view of the light to the eye box at a different point than a vertical field of view. A switchable shutter may overlap the system and may be synchronized to an external device display.