Illuminating device for vehicles

US11274806B2 · kind B2 · utility

Assignee

• Hella GmbH & Co. KGaA · DE

Inventors

• Edwin N. Kamau · Bonn, DE
• Martin Mügge · Geseke, DE
• Alfons Michaelis · Borchen, DE

Key dates

• Filing date: Apr 27, 2018
• Grant date: Mar 15, 2022
• Expiry date: Apr 27, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G03H1/2202
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An illuminating device for vehicles is provided with a housing closed off by a transparent covering plate. A light source unit contains at least a first and a second light source. An optical unit contains a hologram element for generating a illuminated holographic figure are arranged. The optical unit has at least one shutter element for limiting an emission angle range (φ) of the light source, such that the optical unit has a first optical component allocated to the first light source and a second optical component allocated to the second light source by means of which light emitted by the light sources can be deflected in the direction of the hologram element. A transitional area between the optical components a screening element extends in such a way that scattered light emitted by the first light source that does not hit the allocated first optical component is prevented from hitting the adjacent second optical component and such that, vice versa, scattered light emitted from a second light source that does not hit the second optical component is prevented from hitting the first optical component.