Optische Vorrichtungen, Systeme und Verfahren

Details

Veröffentlichungs-Nr.

EP3964880

Aktenzeichen

EP20194809

Anmeldetag

7. September 2020

Veröffentlichung

28. Januar 2026

Erteilung

28. Januar 2026

Rechtsraum

EP

IPC

G02B27/01G02B27/00G02B30/24G02B26/08

Abstract

Certain examples of the present invention relate to optical apparatuses, systems and methods. Certain examples provide apparatus 10 comprising: at least a first and a second light guiding means100, 200, wherein each light guiding means respectively comprises: a plurality of diffractive means 101-103, 201-203 configured to: in-couple one or more input beams of light 106, 206 into the light guiding means, expand the one or more input beams of light, and out-couple the one or more expanded beams of light from the light guiding means to provide one or more expanded output light beams; wherein the out-coupling diffractive means 103,203 comprises a plurality of sections thereof 103₁-103_n, 203₁-203_n that are independently switchable between a first out-coupling state and a second out-coupling state, wherein a section of the out-coupling diffractive means in the first out-coupling state permits the out-coupling of the one or more expanded beams of light therefrom, and wherein a section of the out-coupling diffractive means in the second out-coupling state precludes the out-coupling of the one or more expanded beams of light therefrom; wherein the apparatus is configured such that the out-coupling diffractive means of one light guiding means at least partially overlaps the out-coupling diffractive means of the other light guiding means.

Anmelder

Firma

Nokia Technologies Oy

Land

🇫🇮 Finnland

Fachgebiete