Optische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4769006

Anmeldetag

17. Dezember 2025

Veröffentlichung

1. Juli 2026

Rechtsraum

EP

IPC

G02B27/00, G02B27/01

Abstract

Examples of the disclosure relate to optical apparatus that enable tracking of a user of the apparatus. The apparatus comprises a light guide arranged to enable light to be guided through the light guide via internal reflections, first in-coupling diffractive means configured to in-couple one or more input beams of light with a first wavelength range into the light guide, second in-coupling diffractive means configured to in-couple one or more input beams of light with a second wavelength range into the light guide, expanding diffractive means configured to expand the one or more input beams of light, and out-coupling diffractive means configured to out-couple the expanded beams of light from the light guide so as to provide a first exit pupil for the first wavelength range and a second exit pupil for the second wavelength range.

Anmelder

Firma

Nokia Technologies Oy

Land

🇫🇮 Finnland

Fachgebiete