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Details

Veröffentlichungs-Nr.

EP3761103

Aktenzeichen

EP19184706

Anmeldetag

5. Juli 2019

Veröffentlichung

31. Dezember 2025

Erteilung

31. Dezember 2025

Rechtsraum

EP

IPC

G02B27/09G02B27/01G03B21/28

Abstract

A HMD device includes a projection device, at least one waveguide element and a light shielding element. The projection device is configured to provide an image beam. The at least one waveguide element has a light incident end and a light output end, where the light incident end is configured to receive the image beam, and the image beam is transmitted by the at least one waveguide element and emitted from the light output end. The light shielding element is disposed between the projection device and the light incident end of the at least one waveguide element, where the image beam has a stop, and the stop is located at external of the projection device. The HMD device of the invention effectively reduces generation of unexpected light or light spot, so as to avoid displaying noise or ghost in a display image.

Anmelder

Firma

Coretronic Corporation

Land

🇹🇼 Taiwan

Fachgebiete