Signify Holding B.v.

James Jehong Kim

Ronald Cornelis De Gier

Mark Johannes Antonius Verhoeven

Peter John Franck

Thomas Deflandre

The present invention relates to a louvre lighting unit which contains a plurality of louvre cells for beam shaping the lighting unit light. The plurality of louvre cells comprises a plurality of n subsets, each comprising a respective plurality of m louvre cells. The louvre cells of each subset are configured as a domain of adjoining louvre cells, wherein a respective plurality of k louvre cells within each domain have mutually differing louvre cell cross-sections.

Pebble-plate like louvre with specific domain characteristics

The invention provides a lighting unit () comprising a light mixing chamber () defined by faces () and an edge face (), wherein a height (H) of the light mixing chamber () defined by a distance between the faces () is smaller than a first length (L) of the light mixing chamber (), wherein the lighting unit comprises a plurality of light sources () configured to provide light source light () in the light mixing chamber (), wherein at least one of the faces () comprises a plurality of chamber openings () for escape of at least part of the light source light () from the light mixing chamber (), wherein the lighting unit () further comprises a plurality of beam shaping elements (), with each beam shaping element () configured downstream from a corresponding chamber opening (, and wherein the beam shaping elements () comprise reflectors ().

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Eindhoven, Netherlands

James Jehong Kim