Abstract: Inventive methods and apparatus for providing an open wall wash luminaire designed to allow a small amount of light to go behind the luminaire kick reflector, resulting in the kick reflector being less noticeable by an occupant of the room when light is being provided by the luminaire.

Abstract: 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.

Abstract: The invention provides a lighting unit (1000) comprising a light mixing chamber (100) defined by faces (110) and an edge face (130), wherein a height (H) of the light mixing chamber (100) defined by a distance between the faces (110) is smaller than a first length (L1) of the light mixing chamber (100), wherein the lighting unit comprises a plurality of light sources (10) configured to provide light source light (11) in the light mixing chamber (100), wherein at least one of the faces (110) comprises a plurality of chamber openings (141) for escape of at least part of the light source light (11) from the light mixing chamber (100), wherein the lighting unit (1000) further comprises a plurality of beam shaping elements (150), with each beam shaping element (150) configured downstream from a corresponding chamber opening (141, and wherein the beam shaping elements (150) comprise reflectors (200).

Abstract: Inventive methods and apparatus for providing an open wall wash luminaire designed to allow a small amount of light to go behind the luminaire kick reflector, resulting in the kick reflector being less noticeable by an occupant of the room when light is being provided by the luminaire.

Abstract: The invention provides a lighting unit (1000) comprising (i) a plurality of light sources (10) for generation of lighting unit light (1001), and (ii) a light exit unit (200) for escape of at least part of said lighting unit light (1001) from the lighting unit (1000), wherein the light exit unit (200) comprises a louvre unit (1200) comprising a plurality of louvre cells (210) for beam shaping the lighting unit light (1001), wherein the plurality of louvre cells (210) comprises a plurality of n subsets each comprising a respective plurality of m louvre cells (210), wherein the louvre cells (210) of each subset are configured as domain of adjoining louvre cells (210), wherein a respective plurality of k louvre cells (210) within each domain have mutually differing louvre cell cross-sections, wherein 3?n?100000, wherein 5?m?21, and wherein 5?k?m.

Abstract: The invention provides a lighting unit (1000) comprising a light mixing chamber (100) defined by faces (110) and an edge face (130), wherein a height (H) of the light mixing chamber (100) defined by a distance between the faces (110) is smaller than a first length (L1) of the light mixing chamber (100), wherein the lighting unit comprises a plurality of light sources (10) configured to provide light source light (11) in the light mixing chamber (100), wherein at least one of the faces (110) comprises a plurality of chamber openings (141) for escape of at least part of the light source light (11) from the light mixing chamber (100), wherein the lighting unit (1000) further comprises a plurality of beam shaping elements (150), with each beam shaping element (150) configured downstream from a corresponding chamber opening (141, and wherein the beam shaping elements (150) comprise reflectors (200).