Lichtquellenvorrichtung und Bildprojektionsvorrichtung mit einer Lichtquellenvorrichtung

Details

Veröffentlichungs-Nr.

EP4730029

Anmeldetag

15. Oktober 2021

Veröffentlichung

22. April 2026

Rechtsraum

EP

IPC

G03B17/54, G03B21/20, H04N9/31G03B21/20(RICOH CO LTD et al.)

Abstract

The invention provides an optical system configured to monitor a state of a diffuser, the system comprising the diffuser, a light source configured to emit at least one light beam, a transmissive or reflective spatial light modulator, a sampler a detection system, and an analyzer, wherein the light source is configured to illuminate the diffuser, wherein the aperture is configured to be filled with light and the optical system is configured to have all rays of light that exit the diffuser with a same angle ending up at a same point in the aperture. The invention further provides a method of monitoring a state of a diffuser in the optical system.

Anmelder

Firma

Barco n.v.

Land

🇧🇪 Belgien

Fachgebiete