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1. (WO2018060557) AUGMENTED REALITY APPARATUS

Pub. No.:    WO/2018/060557    International Application No.:    PCT/FI2017/050681
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Thu Sep 28 01:59:59 CEST 2017
IPC: G02B 27/01
F21V 8/00
Applicants: NOKIA TECHNOLOGIES OY
Inventors: JÄRVENPÄÄ, Toni
Title: AUGMENTED REALITY APPARATUS
Abstract:
According to various but not necessarily all embodiments of the invention, there is provided an apparatus comprising an optical engine configured to provide one or more light beams, a camera, a waveguide configured to guide the one or more light beams wherein the waveguide comprises a diffractive in-coupling grating and at least one diffractive out-coupling, wherein the at least one out-coupling grating is configured to out-couple the one or more light beams towards an eye of a user and towards the camera.