Abstract: The lighting device includes a lens array having a plurality of lenses and a focal surface located at a focal distance from the lens array, a light source array having a plurality of light sources arranged to emit light towards the lens array with a light output distributed around a primary axis, and a cover layer having a light-transmissive surface portion delimiting light exit openings. The cover layer is positioned to substantially coincides with the focal surface. Each light source forms a combination with a closest lens, each combination having, in a plane perpendicular to the primary axis, a displacement length and a displacement direction, such that there are least two different displacement lengths and at least two different displacement directions.

Abstract: The invention provides a reactor assembly (1) comprising a reactor (30), wherein the reactor (30) is configured for hosting a fluid (100) to be treated with light source radiation (11) selected from one or more of UV radiation, visible radiation, and IR radiation, wherein the reactor (30) comprises a reactor wall (35) which is transmissive for the light source radiation (11), wherein: the reactor (30) is a tubular reactor (130), and wherein the reactor wall (35) defines the tubular reactor (130); the tubular reactor (130) is configured in a tubular arrangement (1130); the reactor assembly (1) further comprises a reactor support element (40), wherein the reactor support element (40) comprises a track (42), wherein the track (42) partly encloses the tubular reactor (130), wherein the reactor support element (40) comprises a thermally conductive element (2), and wherein the tubular reactor (130) is configured in thermal contact with the thermally conductive element (2).

Abstract: A light generating device (100) comprising a plurality of solid state light sources (10) and a housing (120) comprising side wall elements (20). The light sources (10) are enclosed by the side wall elements (20), and the light generating device (100) generates >=90% of light source light (11) within a triangular prism having a top angle (?)<=180°. The side wall elements (20): —each have a first side (21) directed inwards facing the light sources (10) and a second side (22) which is directed outwards and is reflective for visible light;—are configured at both sides of a housing plane (110), under an angle (?1) between 0-45° relative to the housing plane (110);—have a projection with height H1 on the housing plane (110)—define a largest width (W1) of the light housing 120), wherein H1/W1>1.

Abstract: A lighting device (1) comprising a light generating element (2; 3), and a micro-lens (4) comprising a focal plane (Fp), wherein the light generating element (2; 3) comprises a first light generating component (2) and a second light generating component (3), wherein the first light generating component (2) comprises a light emitting surface (28) adapted for providing a diffuse light output component, wherein the second light generating component (3) comprises at least one array of light sources (3) adapted for providing a directional light output component, wherein the light generating element (2; 3) is arranged to emit a light output towards the micro-lens array (4), the light output being formed by a superposition of the diffuse light output component and the directional light N output component, and wherein the array of the light sources (3) is located in the focal plane (Fp) of the micro-lens array (4).

Abstract: The invention provides a photoreactor assembly (1) comprising a reactor (30), wherein the reactor (30) is configured for hosting a fluid (100) to be treated with light source radiation (11) selected from one or more of UV radiation, visible radiation, and IR radiation, wherein the reactor (30) comprises a reactor wall (35) which is transmissive for the light source radiation (11), wherein the photoreactor assembly (1) further comprises: a light source arrangement (1010) comprising a plurality of light sources (10) configured to generate the light source radiation (11), wherein the reactor wall (35) is configured in a radiation receiving relationship with the plurality of light sources (10); one or more fluid transport channels (7) configured in functional contact with one or more of (i) the reactor (30) and (ii) one or more of the plurality of light sources (10); a cooling system (90) configured to transport a cooling fluid (91) through the one or more fluid transport channels (7).

Abstract: The invention provides a reactor assembly (1) comprising a reactor (30), wherein the reactor (30) is configured for hosting a fluid (100) to be treated with light source radiation (11) selected from one or more of UV radiation, visible radiation, and IR radiation, wherein the reactor (30) comprises a reactor wall (35) which is transmissive for the light source radiation (11), wherein: (i) the reactor (30) is a tubular reactor (130), and wherein the reactor wall (35) defines the tubular reactor (130); (ii) the tubular reactor (130) is configured in a tubular arrangement (1130); and (iii) the reactor assembly (1) further comprises a reactor support element (40), wherein (a) the reactor support element (40) encloses at least part of the tubular arrangement (1130) or wherein (b) the tubular arrangement (1130) encloses at least part of the reactor support element (40); wherein part of the tubular arrangement (1130) is configured in contact with the reactor support element (40), and wherein another part of the tubu

Abstract: The invention provides a photoreactor assembly (1) comprising a reactor (30), wherein the reactor (30) is configured for hosting a fluid (100) to be treated with light source radiation (11) selected from one or more of UV radiation, visible radiation, and IR radiation, wherein the reactor (30) comprises a reactor wall (35) which is transmissive for the light source radiation (11), wherein: (i) the reactor (30) is a tubular reactor (130), and wherein the reactor wall (35) defines the tubular reactor (130); (ii) the tubular reactor (130) is configured in a tubular arrangement (1130); (iii) the photoreactor assembly (1) further comprises a light source arrangement (1010) comprising a plurality of light sources (10) configured to generate the light source radiation (11), wherein the reactor wall (35) is configured in a radiation receiving relationship with the plurality of light sources (10); and (iv) one or more of the tubular arrangement (1130) and the light source arrangement (1010) defines a polygon (50).

Abstract: The invention relates to a lighting device with a relatively simple construction that it is arranged to provide a sparkling light effect. The lighting device comprises (i) a lens array (110) having a plurality of lenses (110a-d) and a focal surface (111) located at a focal distance from the lens array (110), and (ii) a light source array (120) having a plurality of light sources (120a-d), each light source (120a-d) being arranged to emit light towards the lens array (110) with a light output distributed around a primary axis (121a-d), the light sources (120a-d) together defining a light-emitting surface (122) of the light source array (120). The light-emitting surface (122) of the light source array (120) substantially coincides with the focal surface (111) of the lens array (110).

Abstract: The invention provides a lighting system (1) comprising a lighting device (100) configured to provide lighting device light (101) with a variable spectral distribution (SD), wherein the lighting system (1) comprises a control system configured to control the spectral distribution (SD) of the lighting device light (101), wherein the lighting device (1) comprises at least two lighting modes (M1,M2), wherein: 5 (i) in a first lighting mode (M1) the lighting device (1) is configured to provide white light (101) with a first spectral distribution (SD1) in the visible with a first spectral intensity P1, the first spectral distribution (SD1) having a spectral intensity gap (G) configured in the spectral range of 430-600 nm, the spectral intensity gap (G) having a spectral gap width (GW1) of at least 20 nm and a maximum spectral gap intensity PG1 of lighting device light (101) within the spectral intensity gap (G) of PG1/P1?k, wherein k is a predefined intensity ratio value, and (ii) in a second lighting mode (M2) th

Abstract: A lighting device (1) comprising a light generating element (2; 3), and a micro-lens (4) comprising a focal plane (Fp), wherein the light generating element (2; 3) comprises a first light generating component (2) and a second light generating component (3), wherein the first light generating component (2) comprises a light emitting surface (28) adapted for providing a diffuse light output component, wherein the second light generating component (3) comprises at least one array of light sources (3) adapted for providing a directional light output component, wherein the light generating element (2; 3) is arranged to emit a light output towards the micro-lens array (4), the light output being formed by a superposition of the diffuse light output component and the directional light N output component, and wherein the array of the light sources (3) is located in the focal plane (Fp) of the micro-lens array (4).

Abstract: The invention provides a lighting system (1) comprising a lighting device (100) configured to provide lighting device light (101) with a variable spectral distribution (SD), wherein the lighting system (1) comprises a control system (200) configured to control the spectral distribution (SD) of the lighting device light (101), wherein the lighting device (1) comprises at least two lighting modes (M1,M2), wherein:5 (i) in a first lighting mode (M1) the lighting device (1) is configured to provide white light (101) with a first spectral distribution (SD1) in the visible with a first spectral intensity P1, the first spectral distribution (SD1) having a spectral intensity gap (G) configured in the spectral range of 430-600 nm, the spectral intensity gap (G) having a spectral gap width (GW1) of at least 20 nm and a maximum spectral gap intensity PG1 of lighting device light (101) within the spectral intensity gap (G) of PG1/P1?k, wherein k is a predefined intensity ratio value, and (ii) in a second lighting mode (M

Abstract: A luminaire (10) comprises an array of lighting units (12) arranged as a plurality of regions (14a-14e). A reflector arrangement (16) is provided over the array of lighting units (12) for directing the light from each region (14a-14e) of the luminaire (10) to a different spread of light output directions. Each lighting unit (12) of at least one of the regions (14a-14e) comprises a first sub-unit (20, 22, 24) with a first polarised light output and a second sub-unit (20, 22, 24) with a second light output which is different from the first light output in polarisation, wherein the first and second sub-units (20, 22, 24) are independently controllable. In this way, light output in a certain range of directions can be controlled to have a desired polarisation. By actuating different sub-units (20, 22, 24), the polarisation can be dynamically controlled.

Abstract: A method according to embodiments of the invention includes providing a light emitting semiconductor structure grown on a substrate. The substrate has a front side and a back side opposite the front side. Notches are formed in the substrate. The notches extend from the front side of the substrate into the substrate. After forming notches in the substrate, the back side of the substrate is thinned to expose the notches.

Abstract: A method comprises forming a mask on a first surface of a substrate. The mask is patterned to form openings on the first surface of the substrate. Notches are formed in the first surface of the substrate in the openings. The mask is removed from the first surface of the substrate A plurality of LEDs are provided on the first surface of the substrate and between notches. A second surface of the substrate is thinned to expose the notches and separate the LEDs. The second surface of the substrate is opposite of the first surface of the substrate.

Abstract: There is proposed a light source comprising: a semiconductor diode structure adapted to generate light; and an optical enhancement section above the semiconductor diode structure and adapted to output light from the semiconductor diode structure. A partially-reflective layer covers at least a portion of the top of the optical enhancement section and is adapted to reflect a portion of the output light towards the optical enhancement section. The partially-reflective layer has a light transmittance characteristic that varies laterally.

Abstract: A LED module is disclosed comprising a LED chip including at least one LED arranged to direct a luminous output centered about an optical axis towards a light exit surface; an optical layer separated from the light exit surface by a spacing region having a lower refractive index than the optical layer and a material comprising the light exit surface, the optical layer being arranged to redirect the luminous output in a direction under a non-zero angle with the optical axis; and a collimating element over the optical layer, the collimating element being arranged to collimate the redirected luminous output in said direction. A lighting module including one or more of such LED modules is also disclosed.

Abstract: The present invention relates to a lighting device, in particular a headlamp for vehicles, at least comprising an array of light sources, consisting of first and second light sources being mounted within the same flat or curved plane, and a projecting optical system arranged to project light emitted by the light sources in a forward direction of the lighting device. At least one shifting element is arranged in front of said first light sources. The shifting element generates real or virtual emission positions of the light of said first light sources shifted towards or away from the projecting optical system with respect to emission positions of said second light sources. With the proposed lighting device, in addition to the main lighting function of illumination, a pattern or signature can be projected at one or several additional image planes. The lighting device thus e.g. allows the additional projection of branding or safety patterns.

Abstract: The invention provides an outdoor luminaire (100) comprising: —a plurality of lighting devices (10), each lighting device (10) configured to provide lighting device light (11) and each lighting device (10) comprising at least a light source (13); —a plurality of beam shaping optics (20), each beam shaping optics (20) configured to receive lighting device light (11) of one of the lighting devices (10) and configured to beam shape the lighting device light (11) into a beam (12) of lighting device light (11); wherein the outdoor luminaire (100) is configured to provide a beam (112) of luminaire light (101) comprising the beams (12) of lighting device light (11); and wherein the beam shaping optics (20) are configured in an arrangement (120) which is random, phyllotactic or a combination thereof.

Abstract: A luminaire (10) comprises an array of lighting units (12) arranged as a plurality of regions (14a-14e). A reflector arrangement (16) is provided over the array of lighting units (12) for directing the light from each region (14a-14e) of the luminaire (10) to a different spread of light output directions. Each lighting unit (12) of at least one of the regions (14a-14e) comprises a first sub-unit (20, 22, 24) with a first polarised light output and a second sub-unit (20, 22, 24) with a second light output which is different from the first light output in polarisation, wherein the first and second sub-units (20, 22, 24) are independently controllable. In this way, light output in a certain range of directions can be controlled to have a desired polarisation. By actuating different sub-units (20, 22, 24), the polarisation can be dynamically controlled.

Abstract: The invention provides an outdoor luminaire (100) comprising: - a plurality of lighting devices (10), each lighting device (10) configured to provide lighting device light (11) and each lighting device (10) comprising at least a light source (13); - a plurality of beam shaping optics (20), each beam shaping optics (20) configured to receive lighting device light (11) of one of the lighting devices (10) and configured to beam shape the lighting device light (11) into a beam (12) of lighting device light (11); wherein the outdoor luminaire (100) is configured to provide a beam (112) of luminaire light (101) comprising the beams (12) of lighting device light (11); and wherein the beam shaping optics (20) are configured in an arrangement (120) which is random, phyllotactic or a combination thereof.