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.

Abstract: A plant growth monitoring system comprises an image capture system for capturing images over time of a plant being monitored. The images are used to derive successive time instants corresponding to predetermined growth states of the plant. A temperature exposure parameter is obtained between the successive time instants, based on a monitored temperature vs. time function. Information relating to a plant health is derived from the temperature exposure parameter.

Abstract: A system for estimating a harvesting time in a plant growing environment is configured to determine a light setting used by one or more light sources (11) to illuminate a section (45) of the plant growing environment with horticulture grow light. The light setting comprises at least a color component associated with the section of the plant growing environment. The system is further configured to obtain light measurement information from one or more color sensors (21) when the one or more color sensors are co-located with the one or more light sources. The system is configured to estimate a harvesting time for the section of the plant growing environment based on the light measurement information, an intensity of the color component in the light setting and a cultivation temperature protocol for the section of the plant growing environment. The cultivation temperature protocol comprises one or more assumed cultivation temperatures.

Abstract: A system for mimicking daylight in a space by using one or more light sources (11,12) having a redirectable light output is configured to determine a daylight-mimicking light output direction (51,52) for the light output in the space based on a time of day, determine an estimated or detected position of an object, person (59) or animal in the space, determine an adjusted light output direction (51,53) for the one or more light sources in dependence on the daylight-mimicking light output direction and the estimated or detected position, and control the one or more light sources to render the light output in the adjusted light output direction.

Abstract: A beam shaping device (1; 31) comprising first (3; 33) and second (4; 37) optically transparent substrates, a liquid crystal layer (2; 36) sandwiched there between, and first (5; 34) and second (6; 35) electrodes arranged on a side of the liquid crystal layer (2; 36) facing the first substrate (3; 34). The beam shaping device (1; 31) is controllable between beam-shaping states, each permitting passage of light through the beam-shaping device in a direction perpendicular thereto. The beam shaping device (1; 31) is configured in such a way that application of a voltage (V) across the first (5; 34) and second (6; 35) electrodes results in an electric field having a portion essentially parallel to the liquid crystal layer (2; 36) in a segment thereof between neighboring portions of the electrodes (5, 6; 34; 35) and extending substantially from the first substrate (3; 34) to the second (4; 35) substrate.

Abstract: A lighting arrangement (1) for use in a plant growing environment comprises a light source (5). The plant growing environment comprises at least a first plant container (11) and a second plant container (12) adapted to move relative to each other. The light source is arranged to illuminate a plant from below when the plant is provided in the first plant container. An angle of the illumination depends on a distance between the first plant container and the second plant container.

Abstract: A laser-based light source includes a laser device configured to generate laser light of a predetermined laser wavelength and emit this laser light as a laser beam. A light-conversion device is configured to convert at least part of the laser light into converted light and a laser-output sensor is configured to determine a laser-output signal proportional to the output of laser light emitted by the laser device. Further, a converted-light sensor is configured to determine a converted-light signal proportional to the output of converted light emitted by the light-conversion device. A controller is configured to receive the laser-output signal and the converted-light signal, to determine a safe-to-operate parameter, based on the laser-output signal and the converted-light signal, and to control the operation of the laser-based light source based on a comparison of the safe-to-operate parameter with a at least one predefined threshold.

Abstract: A system for adjusting one or more settings of one or more identified light sources is configured to receive input from one or more sensors (21-23, 26-28), determine an attention area of an operator (81) from the input, identify one or more light sources (13,14) illuminating the attention area, and adjust one or more settings of the one or more identified light sources from grow light settings to operator light settings

Abstract: A system is configured to obtain multiple images (83) of a plant and store a plurality of the multiple images of the plant with a grow protocol (71) for growing the plant. Each of the images is associated with a different capture moment. The system is further configured to select the grow protocol separately from the plant and render the plurality of images upon selection of the grow protocol. Each of the images is rendered along with one or more desired and/or measured conditions (74-76) of a growth stage (84). The growth stage corresponds to a capture moment of the respective image. The grow protocol comprises a plurality of growth stages and the one or more desired and/or measured conditions are included in the grow protocol.

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

Abstract: The invention provides a horticulture arrangement (1000) for a plant (1), the horticulture arrangement (1000) comprising (i) a horticulture lighting system (100) configured to provide horticulture light (101) to plants (1), (ii) one or more reflective elements (310) configured to reflect part of the horticulture light (101) to the plant (1), and (iii) a control system (200), wherein the control system (200) is configured to control one or more of a light intensity and a spectral distribution of the horticulture light (101) in dependence of the reflection of the horticulture light (101) by the one or more reflective elements (310).

Abstract: The invention provides a user interface for controlling a multichannel lighting unit wherein each channel of the multichannel lighting unit comprises at least one light source for emitting light having a channel-specific spectral composition, the spectral composition associated with one channel being different from the spectral composition associated with another channel, and a light output from each channel being individually controllable, the user interface comprising at least two user interaction elements, each user interaction element associated with a color producible with the multichannel lighting, each user interaction element comprising: (a) a static scale representing a static range of control values for controlling a light output of the multichannel lighting unit in respect of the color associated with the user interaction element; (b) a dynamic scale representing a dynamic range of control values for controlling a light output of the multichannel lighting unit in respect of the color associated wit

Abstract: The invention provides a horticulture arrangement (1000) for a plant (1), the horticulture arrangement (1000) comprising (i) a horticulture lighting system (100) configured to provide horticulture light (101) to plants (1), (ii) one or more reflective elements (310) configured to reflect part of the horticulture light (101) to the plant (1), and (iii) a control system (200), wherein the control system (200) is configured to control one or more of a light intensity and a spectral distribution of the horticulture light (101) in dependence of the reflection of the horticulture light (101) by the one or more reflective elements (310).

Abstract: The present invention generally relates to systems and methods of illuminating plants, in particular, to providing supplemental lighting in addition to natural light to plants, and improving the crop yield when using such supplemental lighting. The invention is well suited for use in horticulture, for instance, in greenhouses.

Abstract: A horticultural lighting apparatus for illuminating a plant comprises a lighting module with multiple lighting elements. The lighting module is restricted to operating in a plurality of discrete modes which emit light with different discrete spectral compositions, by emitting light from the lighting elements in different predetermined combinations. These modes comprise a growth mode configured with a spectrum that promotes growth of the plant, and at least one steering mode configured with a spectrum that steers another biological process of the plant, wherein at least one of the lighting elements is arranged to emit in both the growth and steering modes. The apparatus further comprises a controller arranged to switch the lighting module between the plurality of discrete modes.

Abstract: The present application relates to a method of controlling an artificial light plant growing system (1). The method includes receiving information indicative of a production demand for a plant type to be grown in the artificial light plant growing system (1) and information indicative of an energy supply for a light source (9) of the artificial light plant growing system (1), and controlling operation of the light source (9) of a plant growing environment of the artificial light plant growing system (1) in dependence on the received information so that the production rate of a plant (8) of said plant type grown in the system (1) versus the production demand and energy supply is optimised. The present application also relates to a computer program comprising instructions which, when executed by at least one processor, cause the method of to be performed, a controller (5) for controlling an artificial light plant growing system (1), and an artificial light plant growing system (1).

Abstract: The invention provides an elongated lighting element (200) for attachment to a building part (10) selected from the group consisting of a wall (11), a ceiling (12) and a floor (13), wherein the building part (10) comprises a first attachment unit (131) and a first electrical power connector (141), wherein the elongated lighting element has a front side (210) and at the other side of the front side (210) (i) a second attachment unit (231) for forming with the first attachment unit (131) said attachment to said building part (10), (ii) a second electrical power connector (241) for forming an electrical connection with the first electrical power connector (141), and (iii) a plurality of solid state based light sources (250) configured to provide light source light (251) and functionally connected with the second electrical power connector (241).

Abstract: A beam shaping device (1; 31) comprising first (3; 33) and second (4; 37) optically transparent substrates, a liquid crystal layer (2; 36) sandwiched there between, and first (5; 34) and second (6; 35) electrodes arranged on a side of the liquid crystal layer (2; 36) facing the first substrate (3; 34). The beam shaping device (1; 31) is controllable between beam-shaping states, each permitting passage of light through the beam-shaping device in a direction perpendicular thereto. The beam shaping device (1; 31) is configured in such a way that application of a voltage (V) across the first (5; 34) and second (6; 35) electrodes results in an electric field having a portion essentially parallel to the liquid crystal layer (2; 36) in a segment thereof between neighboring portions of the electrodes (5, 6; 34; 35) and extending substantially from the first substrate (3; 34) to the second (4; 35) substrate.

Abstract: An optical arrangement having at least a lens mode in which the optical arrangement is a lens arrangement having an array (9) of lenticular lenses (11) each of which has a particular lens surface shape such that, when tracing rays through a lenticular lens after they have entered one side of the lenticular lens, there exists at least one ray that hits the lenticular lens surface perpendicularly. This arrangement gives reduced banding and loss of intensity at steep angles when used in an autostereoscopic display.

Abstract: The invention provides a floor covering system (10) with (a) a PVC-based floor covering (100) and (b) a lighting system (200) arranged to generate light (210). The PVC-based floor covering (100) has a user side (101) and an opposite back side (102). The lighting system (200) is arranged at the back side (102) of the PVC-based floor covering (100). The PVC-based floor covering (100) has a light transmission for light (210) generated by the lighting system (200) in the range of 0.5% to 30%, especially in the range of 1% to 20%.