LED illumination module

US7461960B2 · kind B2 · utility

Assignee

• ZWEIBRÜDER OPTOELECTRONICS GMBH & CO. KG · DE

Inventors

• Rainer Opolka · Solingen, DE
• Andreas Timinger · Aachen, DE

Key dates

• Filing date: May 5, 2006
• Grant date: Dec 9, 2008
• Expiry date: May 5, 2026

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F21Y2115/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An LED illumination module has a light-emitting diode and a rotationally symmetrical, one-piece, light-transparent adapter lens centered on a lens axis. This lens has an axially rearwardly open blind hole defined by a radially inwardly directed frustoconical light-receiving side surface and an axially rearwardly directed convex light-receiving base surface. The diode is axially shiftable in the hole. An axially forwardly directed convex light-output surface is coaxially surrounded by an axially forwardly directed and forwardly flaring frustoconical light-output surface. A radially outwardly directed and radially inwardly reflective surface extends generally from a front edge of the axially forwardly directed frustoconical light-output surface to a rear edge of the radially inwardly directed frustoconical surface.