Abstract: A lighting device (100) for illuminating a surface (110). The lighting device comprises at least one first light source (120) configured to emit a first light beam (140) in a first direction and at least one second light source (130) configured to emit a second light beam (150) in a second direction that is not parallel to the first direction. The first light beam (140) has a first spectral power distribution, the second light beam (150) has a second spectral power distribution and the second spectral power distribution is different from the first spectral power distribution. The lighting device further comprises at least one light-delimiting element (160) adjustable relative to at least one of the at least one first light source and the at least one second light source.

Abstract: A lighting device, comprising an enclosure (120) comprising a plurality of partitioning elements (130a-f) to form within the enclosure a plurality of sub-spaces (140a-e) each comprising first and second reflective inner surfaces (170, 180), wherein each sub-space further comprises a light source (110) arranged to emit light with a light output, the light output comprising light beams in a blue wavelength range of 400-490 nm and in a non-blue wavelength range of 490-700 nm, a first part of the light output being incident on the first reflective inner surface of the sub-space and a second part of the light output being incident on the second reflective inner surface of the sub-space, wherein, for light within the blue wavelength range, the first reflective inner surface has a first blue reflectance (310) of >20%, and the second reflective inner surface has a second blue reflectance (320) of <20%.

Abstract: A virtual window device (100), comprising (i) a display (110) arranged in a first plane (A), wherein the display (110) is arranged to provide a first output (120) for rendering a first image of a view through a window (130) onto a virtual planar surface (140) that is oriented parallel to the display (110) along an axis (C), perpendicular to the first plane (A), (ii) a frame (150) projecting from the display (110), and wherein an edge (160) of the frame (150), oppositely arranged the display (110), spans a second plane (B), (iii) a lighting element (170) configured to emit a second output (180) onto the virtual planar surface (140), wherein the lighting element (170) is arranged within the virtual window device (100) at a distance (D) from the second plane (B), along the axis (C), wherein the second output (180) has a directionality, the directionality being one or more of a spatial direction, a beam angle, a beam width, a light output distribution and a diffusivity, and (iv) a unit (190) configured to registe

Abstract: A system is disclosed for protecting fish from parasite infection. The system comprises a fish guidance system for deterring fish from moving into a first region bordering a water surface and/or for can move from the second region into the first region so that they can reach the water surface bordering the first region. The system further comprises a radiation disinfection system that is configured to provide disinfection radiation to the first region, the disinfection radiation being configured to disinfect water from parasites.

Abstract: The invention relates to a power track and a method controlling integrated lighting nodes of a power track. The power track comprising an elongated mounting rail (210), the mounting rail being configured to power a set of modules (3, 3a, 3b, 3c) mounted to the mounting rail, and a plurality of permanently mounted lighting nodes (220) fixated to the power track so as to be distributed along the mounting rail.

Abstract: The present invention relates to a lighting device (1) comprising a luminous panel (2) comprising a light-emitting surface (3), a cover surface (4) arranged at a distance from the light-emitting surface (3), and at least one lateral surface (5) connecting the light-emitting surface (3) and the cover surface (4). The lighting device (1) further comprises a power track (6) being integrated in the luminous panel (2).

Abstract: The invention provides a light generating device (1000) comprising s1 light sources (100) and a support (200) configured to support the s1 light sources (100), wherein the s1 light sources (100) are configured to generate light source light (101), wherein s1>1 and wherein: (a) the support (200) comprises n1 domains (210), wherein n1>3, wherein the support (200) comprises k1 fold lines (220), wherein k1>2, wherein at least three of the n1 domains (210) are separated by at least two of the k1 fold lines (220); wherein the domains (210) have a first domain side (211) and a second domain side (212); (b) the at least three of the n1 domains (210) and the at least two of the k1 fold lines (220) are configured parallel; and (c) the light generating device (1000) comprises m1 adhesive layers (400), wherein m1>2; and wherein at least two of the m1 adhesive layers (400) are functionally coupled to different domain sides (211,212) of one or more domains (210).

Abstract: The invention provides a LED filament device (1000) comprising an elongated LED filament unit (1100), wherein the elongated LED filament unit (1100) is configured to generate filament unit light (1101); wherein: —the elongated LED filament unit (1100) comprises n1 sets (1150) of LED filaments (400), wherein the n1 sets (1150) of LED filaments (400) are electrically coupled, wherein the n1 sets (1150) of LED filaments (400) are configured in a linear array, wherein n1?2; wherein each set (1150) of LED filaments (400) comprises at least two electrically antiparallel configured LED filaments (400); —the LED filaments (400) are configured to generate filament light (401); wherein each LED filament (400) comprises n2 solid state-based light generating devices (100), wherein the solid state-based light generating devices (100) are electrically coupled, wherein the solid state-based light generating devices (100) are configured to generate device light (101); wherein n2 for the LED filaments (400) are selected from

Abstract: A system (31) for determining at least one control parameter for at least one device (41) controlling an environmental condition in a plain growing environment is configured to obtain one or more target values for the environmental condition and receive information relating to control of a further environmental condition in the plant growing environment, e.g. from another system (1). The system is further configured to determine data which represent an anticipated influence of the control of the further environmental condition on the environmental condition from the information and determine the at least one control parameter for the at least one device controlling the environmental condition based on the one or more target values and the data. The system is also configured to output or store the at least one control parameter.

Abstract: A light-emitting assembly comprising a substrate adapted to be cut, a plurality of light strips and a first connection member extending longitudinally over at least part of the substrate for supplying power to the plurality of light strips is provided. A first group of linear light strips extend over the substrate from a first side of the first connection member, and a second group of linear light strips extend over the substrate from a second side, opposite to the first side, of the first connection member. The assembly further comprises a controller system configured to control a power supply to a light strip of the plurality of light strips via the first connection member. The plurality of light strips and/or the first connection member are adapted to be cut to customize a layout of the light-emitting assembly.

Abstract: A lighting device (1) is provided. The lighting device (1) comprises a cavity (10). The cavity (10) is extending along a longitudinal axis (L) of the lighting device (1). Further, the cavity (10) is defined by an interior surface (11) configured to reflect light impinging upon the interior surface (11) of the cavity (10). The cavity (10) has an opening (12) permitting light inside the cavity (10) to exit the cavity (10). The lighting device (1) further comprises an optical module (20). The optical module (20) is arranged in or at the opening (12) of the cavity (10), and is configured to transmit light impinging upon a surface (21) of the optical module (20) through the optical module (20). The light transmitted through the optical module (20) is emitted from the lighting device (1). The lighting device (1) further comprises a plurality of light emitting elements (31).

Abstract: The present invention relates to a light emitting device (1) comprising a flexible and/or stretchable body (2), a plurality of nodes (3), and a plurality of connecting elements (4). Each node (3) of the plurality of nodes (3) is separated from at least one other node (3) of the plurality of nodes (3) by one or more connecting element (4) of the plurality of connecting elements (4). At least one of the plurality of nodes (3) and the plurality of connecting elements (4) are attached to the body (2). One or more nodes of the plurality of nodes (3) are at least one of a light source, a passive element, an electrically conductive element and a passive element. One or more connecting elements of the plurality of connecting elements (4) are at least one of a light source and an electrically conductive element. The connecting elements of the plurality of connecting elements (4) are at least one of flexible and stretchable.

Abstract: The invention concerns a horticulture master lighting device (11) comprises a light source and a processor configured to determine one or more horticulture master light settings and control the light source to render horticulture master light based on the one or more horticulture master light settings. The horticulture master light illuminates a plant (3) from a first position and further comprises a modulated light communication signal. The invention further concerns a horticulture slave lighting device (21) comprises a light sensor, a light source, and a processor configured to receive, via the light sensor, the horticulture master light from the horticulture master lighting device, determine one or more horticulture slave light settings based on the modulated light communication signal, and control the light source to render horticulture slave light based on the one or more horticulture slave light settings. The horticulture slave light illuminates the plant from a second position.

Abstract: The invention provides a light generating device (1000) comprising s1 light sources (100) and a support (200) configured to support the s1 light sources (100), wherein the s1 light sources (100) are configured to generate light source light (101), wherein s1>1 and wherein: (a) the support (200) comprises n1 domains (210), wherein n1>3, wherein the support (200) comprises k1 fold lines (220), wherein k1>2, wherein at least three of the n1 domains (210) are separated by at least two of the k1 fold lines (220); wherein the domains (210) have a first domain side (211) and a second domain side (212); (b) the at least three of the n1 domains (210) and the at least two of the k1 fold lines (220) are configured parallel; and (c) the light generating device (1000) comprises m1 adhesive layers (400), wherein m1>2; and wherein at least two of the m1 adhesive layers (400) are functionally coupled to different domain sides (211,212) of one or more domains (210).

Abstract: Operation of one or more luminaires (120) of a horticulture lighting system is monitored, the horticultural lighting system providing lighting for plants (110) within an environment (100). A possible maintenance action to be performed on the lighting system is identified based on the monitoring. An effect on yield resulting from the possible maintenance action being enacted is determined and an output indicative of that effect is generated.

Abstract: A lighting device, comprising an enclosure (120) comprising a plurality of partitioning elements (130a-f) to form within the enclosure a plurality of sub-spaces (140a-e) each comprising first and second reflective inner surfaces (170, 180), wherein each sub-space further comprises a light source (110) arranged to emit light with a light output, the light output comprising light beams in a blue wavelength range of 400-490 nm and in a non-blue wavelength range of 490-700 nm, a first part of the light output being incident on the first reflective inner surface of the sub-space and a second part of the light output being incident on the second reflective inner surface of the sub-space, wherein, for light within the blue wavelength range, the first reflective inner surface has a first blue reflectance (310) of >20%, and the second reflective inner surface has a second blue reflectance (320) of <20%.

Abstract: A controller and a method for controlling at least two light sources is disclosed.

Abstract: The invention provides a method for providing a non-uniform pigment distribution in a first plant part (110) of a pigment generating plant (100), which accumulates pigment upon exposure by light, during indoor cultivation of said plant (100), wherein the first plant part (110) comprises a second plant part (120) and a third plant part (130), the method comprising subjecting in a first lighting stage at least the first plant part (110) to first light conditions that inhibit or prevent pigment accumulation in said first plant part (110), and subsequently subjecting in a second lighting stage the second plant part (120) of said first plant part (110) to second light conditions that promote pigment accumulation in said second plant part (120) while subjecting the third plant part (130) of said first plant part (110) to third light conditions that inhibit or prevent pigment accumulation in said third plant part (130).

Abstract: A virtual window device (100), comprising (i) a display (110) arranged in a first plane (A), wherein the display (110) is arranged to provide a first output (120) for rendering a first image of a view through a window (130) onto a virtual planar surface (140) that is oriented parallel to the display (110) along an axis (C), perpendicular to the first plane (A), (ii) a frame (150) projecting from the display (110), and wherein an edge (160) of the frame (150), oppositely arranged the display (110), spans a second plane (B), (iii) a lighting element (170) configured to emit a second output (180) onto the virtual planar surface (140), wherein the lighting element (170) is arranged within the virtual window device (100) at a distance (D) from the second plane (B), along the axis (C), wherein the second output (180) has a directionality, the directionality being one or more of a spatial direction, a beam angle, a beam width, a light output distribution and a diffusivity, and (iv) a unit (190) configured to registe

Abstract: The invention concerns a method comprising selecting a grow protocol, selecting an identifier of a container (45), associating the grow protocol with the container identifier, and determining an adjusted target value by applying an adjustment to a target value specified in the growth protocol. The method further comprises controlling an environmental control system (11-13, 27) based on the adjusted target value, obtaining measurement information associated with the container identifier from a device (23), determining a measured plant growth parameter value based on the measurement information, and comparing the measured plant growth parameter value with an expected plant growth parameter value. The method also comprises determining a merit related to a difference between the values and replacing the target value with the adjusted target value and the expected plant growth parameter value with the measured plant growth parameter value in dependence on the merit exceeding a threshold.