Koninklijke Philips Corporation N.V.

Lumileds LLC

Philips Intellectual Property & Standards Gmbh

Pascal Bloemen

Hugo Johan Cornelissen

Floris Maria Hermansz Crompvoets

Marc Andre De Samber

Norbertus Antonius Maria Sweegers

Ludo Haenen

Nils Benter

Rick Gerhardus Nijkamp

Mark Steltenpool

Augustinus G H Meijers

Maarten van-Lierop

Benno Spinger

A primary optic for a light-emitting diode or device (LED) includes a tilted wedge atop a truncated compound parabolic concentrator (CPC). The CPC includes an input face and a lower exterior surface defined by a tilted parabolic segment rotated about an axis. The bottom end of the lower exterior surface joins the perimeter of the input face. The tilted wedge includes an upper exterior surface above the lower exterior surface, and an interior conical surface surrounded by the lower and the upper exterior surfaces. The upper exterior surface is defined by a tilted straight line rotated about the axis. The interior conical surface is defined by a smooth curve rotated about the axis. The interior conical surface has a vertex located at the axis and within the lower exterior surface. The top ends of the interior conical surface and the upper exterior surface join to define an output aperture.

Collimating on-die optic

A lighting unit () is provided with a reflecting surface () for providing an output beam of light with at least two beam patterns. A first light source () and a second light source () are arranged to illuminate substantially identical surface areas of said reflecting surface () and are independently controllable from each other. The reflecting surface () is shaped and said light sources () are positioned relative to said reflecting surface () so that said first light source () generates an output beam of light, having a first beam pattern and said at least second light source () generates an output beam of light, having a second beam pattern, different from said first beam pattern. A corresponding vehicle headlamp () comprises at least one lighting unit ().

Lighting unit and vehicle headlamp

Growing community of inventors

Eindhoven, Netherlands

Pascal Bloemen