Lighting device, lens, system and method

摘要

A lighting device comprising at least four optical devices. Each optical device has an associated light source and comprises a first surface with a plurality of micro sized facets. Each facet has a respective orientation and said plurality of facets has an optical axis which extends parallel to the normal vector to an average orientation of all said respective orientations. The optical devices are divided over at least two sets of optical devices which are designed to mutually issue a different pattern during operation as the optical devices of different sets are arranged in a mutually alternating manner.

主权项

1. A Lighting device comprising at least four optical devices each optical device has an associated light source, and each optical device comprising a first surface with a plurality of micro sized facets having a size in between 25 μm to 250 μm, each facet having a respective orientation, said plurality of facets having an optical axis which extends parallel to the normal vector to an average orientation of all said respective orientations,
wherein the optical devices are divided over at least two sets of optical devices, in that the sets of optical devices, because of their respective orientations redirect light rays from the associated light source along a respective optical axis to mutually issue a different pattern during operation, and in that the optical devices of different sets are arranged in a mutually alternating manner.