Wellenleiteranordnung

Details

Veröffentlichungs-Nr.

EP4730011

Anmeldetag

8. September 2021

Veröffentlichung

22. April 2026

Rechtsraum

EP

IPC

G02B27/01, // G02B27/00G02B27/00

Abstract

A waveguide assembly is disclosed. The waveguide assembly comprises a first waveguide slab and a second waveguide slab. The first waveguide slab is arranged to receive image-bearing light and enlarge a pupil size of the image-bearing light parallel to a first axis. The first waveguide slab comprises a first input coupling device arranged to couple image-bearing light into the first waveguide slab under total internal reflection (TIR), and a first out-coupling region arranged to decouple image-bearing light out of the first waveguide slab by means of reflection. The second waveguide slab is arranged to couple at least a portion of the out-coupled image-bearing light from the first waveguide slab into the second waveguide slab and enlarge the pupil size parallel to a second axis, the second axis substantially orthogonal to the first axis. The second waveguide slab comprises a diffractive in-coupling region and a transmissive diffractive out-coupling region, through which a user can view real world imagery and the out-coupled image-bearing light simultaneously.

Anmelder

Firma

Snap Inc.

Land

🇺🇸 USA

Fachgebiete