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 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: 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: 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: A device for monitoring the inhalation of airborne pollutant by a subject including a processor configured to determine or receive measurements of the amount of airborne pollutant around the subject and the amount of air inhaled by the subject, and to combine the measurements to determine a measure of the amount of airborne pollutant inhaled by the subject.

Abstract: A solid state UV output device package comprises a base which defines a chamber in which electrical components are housed. At least two spring contacts are mounted in the chamber. A lid over the chamber has a UV transparent or translucent window, electrical connection tracks mounted over the inside of the window and a UV output arrangement mounted over the electrical connection tracks. The electrical connection tracks of the lid make electrical contact with the spring contacts. This provides a two-layer structure which provides improved thermal management.

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 a lighting device (100) comprising a plurality of light source packages (110) each light source package (110) comprising a light source (10) and a polarizer (20) configured to polarize light source light (11) of said light source (10), wherein the light source packages (110) are individually controllable, wherein the light source packages (110) are configured to provide polarized light source light (11) with at least two different polarization states (p1,p2), and wherein the light source packages (110) share a light exit window (120) for escape of the light source light (11) from said lighting device (100).

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: The invention provides a system (1) comprising a fan assembly (100) with a plurality of nozzle openings (115a, 115b, . . . ) for creating air flows (111a, 111b, . . . ), the fan assembly (100) configured to provide the air flows (111a, 111b, . . . ) in at least two non-parallel directions (112a, 112b, . . . ), wherein the at least two non-parallel directions (112a, 112b, . . . ) are configured within a virtual cone (30) having an apex angle (?) selected from the range of 10-170° and having a cone axis (31), a control system (200) configured to control the air flows (11a, 111b, . . . ), the system (1) further comprising a light source (10) configured to generate light source light (11), and the system (1) further comprising heating elements (113a, 113b, . . . ) for heating the respective flows (111a, 111b, . . . ).

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: Proposed is a light source comprising: a plurality of LED light sources, each of the plurality of LED light sources having: a semiconductor diode structure adapted to generate light; and a light output section above the semiconductor diode structure adapted to output light from the semiconductor diode structure, the area of the light output section being less than the area of the semiconductor diode structure; and an optically transmissive structure overlapping the light output sections of the plurality of LED light sources so as to receive light from the light output sections of the plurality of LED light sources and having a light exit section adapted to output the received light. The area of the light exit section of the optically transmissive structure is less than the footprint area of the plurality of LED light sources.

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: The present invention relates to an ECG cable for connection with an ECG monitor. To achieve a miniaturization of the ECG cable and omitting the conventionally used trunk cable and trunk cable connector, the ECG cable comprises a core (2), a resistive wire cable (3a-3h) comprising a plurality of resistive wires (31-37) wound around the core and isolated with respect to each other, and two or more flexible lead wires (4), each connected to a respective resistive wire at its one end (40) and to an electrode (5) at its other end (41).

Abstract: The invention provides a horticulture arrangement (2) configured for support of a plant part (6) of a plant (5), comprising a horticulture lighting system (1) for horticulture lighting, the horticulture lighting system (1) comprising a light generating device (10) and an element (100), the element (100) having an elongated shape with an element length (L1), the element (100) comprising a plurality of light emitting regions (200) adapted to provide horticulture light (201) during operation of the light generating device (10), wherein an arrangement of positions of the light emitting regions (200) along the length (L1) of the element (100) is controllable.

Abstract: The invention provides a lighting device (100) comprising a plurality of light source packages (110) each light source package (110) comprising a light source (10) and a polarizer (20) configured to polarize light source light (11) of said light source (10), wherein the light source packages (110) are individually controllable, wherein the light source packages (110) are configured to provide polarized light source light (11) with at least two different polarization states (p1,p2), and wherein the light source packages (110) share a light exit window (120) for escape of the light source light (11) from said lighting device (100).