Lighting device with transparent stabilizer element

US11118751B2 · kind B2 · utility

Assignee

• LUMILEDS LLC · US

Inventors

• Florent Monestier · Aachen, DE
• Benno Spinger · Aachen, DE
• Ulrich Hechtfischer · Aachen, DE

Key dates

• Filing date: Mar 24, 2020
• Grant date: Sep 14, 2021
• Expiry date: Mar 24, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F21V5/008
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The present disclosure relates to a lighting device comprising light-emitting elements such as light-emitting diodes arranged on a substrate. The object to provide a lighting device comprising multiple light-emitting elements and light guides, wherein the thermal sensitivity of the lighting device is reduced in a particularly simple manner, is solved in that the lighting device comprises: a lens with a light entry side and a light exit side; light guides, each light guide being arranged in optical contact to at least one of the light-emitting elements and being configured to guide light emitted by the at least one of the light-emitting elements towards the light entry side of the lens; and a transparent stabilizer element being arranged in mechanical contact to the light exit side of the lens, wherein the transparent stabilizer element is configured to define the shape of the light exit side of the lens at least in regions. The invention further refers to a method for producing a lighting device.