Zweiweg-Lichtleiter

Details

Veröffentlichungs-Nr.

EP4800294

Anmeldetag

27. Februar 2026

Veröffentlichung

2. September 2026

Rechtsraum

EP

IPC

F21V8/00, F21V7/00

Abstract

A light guide for an LED luminaire includes a light receiving surface, a concave first surface, a second surface, and an extraction surface. The concave first surface is positioned to receive a first light portion of incident light. A best-fit plane of this first surface is angled between 6° and 48° relative to an axis perpendicular to the light receiving surface, reflecting the first light portion via total internal reflection downstream. The second surface is downstream and offset from the first surface, allowing a second light portion to bypass the first surface. The second surface reflects this second light portion to create a virtual image of the light source outside the guide. The extraction surface is configured to extract both the first and second light portions, enabling controlled distribution of direct and indirect light while minimizing color separation and imaging artifacts.

Anmelder

Firma

LMPG Inc.

Land

🇨🇦 Kanada

Fachgebiete