摘要:
The invention relates to an improved method to produce artificial light for plant cultivation. In more particular, the invention relates to an illumination device with a semiconductor light emission solution and device suited for plant cultivation in a greenhouse environment. The best mode of the invention is considered to be a lighting device with binary alloy quantum dots (110, 120, 130, 140, 150, 160) made by colloidal methods to produce a size distribution of quantumdots that produces an emission spectrum similar to the photosynthetically active radiation (PAR) spectrum. The methods and arrangements of the invention allow more precise spectral tuning of the emission spectrum for lights used in plant (310, 311) cultivation. The invention therefore realises unexpected improvements in the photomorphogenetic control of plant growth, and further improvements in plant production.
摘要:
A lighting fixture for facilitating plant growth and a light emitting component. The fixture comprises a single light emission source LED device which provides at least two emission peaks in the wavelength range of 300-800 nm and at least one of the emission peaks has Full Width of Half Maximum (FWHM) at least 50 nm or higher. The emission peaks of the LED match well with a plant photosynthesis response spectrum and is therefore particularly suitable for high efficiency artificial lighting.
摘要:
The present disclosure describes a horticultural luminaire, a horticultural lighting arrangement comprising a plurality of said horticultural luminaires, and a method for controlling said horticultural lighting arrangement. The horticultural luminaire comprises a main light emitting unit comprising at least one LED for generating a main spectrum, an environmental sensor for measuring environmental data, and control electronics for determining a position data representing position of the horticultural luminaire, sending out the environmental data and the position data, receiving control data, and controlling the emission intensity of the main light emitting unit on the basis of the control data.
摘要:
The invention relates to the cultivation of insect (840) pollinated plants (710, 711) in a greenhouse (700, 701 and 802) environment. In more particular, the invention relates to a lighting device and a method of illumination designed to enhance insect pollination in plants, such as the tomato. The best mode of the invention is considered to be the use of a LED (101, 102, 103 and 104) lighting device having emission peaks (401, 402, 403, 410 and 510) matching the photosynthetic relative absorption peaks of green plants, and the relative reflectance peaks of flowers of plants being cultivated and the relative sensitivity peaks of the insect's vision being used in the pollination. The inventive lighting device and method reduces insect mortality and increases pollination efficiency, photosynthetic growth and thereby increases the productivity of plant cultivation.
摘要:
The invention relates to the cultivation of insect (840) pollinated plants (710, 711) in a greenhouse (700, 701 and 802) environment. In more particular, the invention relates to a lighting device and a method of illumination designed to enhance insect pollination in plants, such as the tomato. The best mode of the invention is considered to be the use of a LED (101, 102, 103 and 104) lighting device having emission peaks (401, 402, 403, 410 and 510) matching the photosynthetic relative absorption peaks of green plants, and the relative reflectance peaks of flowers of plants being cultivated and the relative sensitivity peaks of the insect's vision being used in the pollination. The inventive lighting device and method reduces insect mortality and increases pollination efficiency, photosynthetic growth and thereby increases the productivity of plant cultivation.
摘要:
A lighting fixture for facilitating plant growth and a light emitting component. The fixture comprises a single light emission source LED device which provides at least two emission peaks in the wavelength range of 300–800 nm and at least one of the emission peaks has Full Width of Half Maximum (FWHM) at least 50 nm or higher. The emission peaks of the LED match well with a plant photosynthesis response spectrum and is therefore particularly suitable for high efficiency artificial lighting.
摘要:
The present disclosure relates to a method for manufacturing a PCB-less structure for a light emitting unit. The method includes a step of forming a light guide element (700) for the light emitting unit. Electrical components (500) (such as LED components) are embedded to the light guide element (700) and electrical conductors (900) are formed on the surface of the light guide element (700). An insulating layer in the form of a dielectric layer (1000) is then added on top of the components (500) and the electrical conductors (900). As a result, the light guide element (700) and the dielectric layer (1000) form a protective casing around the components (500) and the electrical conductors (900). The light guide element (700) also serves as a frame for the light emitting unit.
摘要:
The invention relates to agriculture. More specifically, the invention relates to horticultural lights (3, 4, 9 and 10) used in green houses (350) and growth chambers of plants. The best mode of the invention is considered to be a large ceiling attached lighting device (9 and 10) for greenhouses that has a replaceable cover glass which works as the remote phosphor up-conversion unit (40, 440). The LED emitters (50, 51, 52, 3, 54, 55, 57, 58, 60 and/or 70) are also replaceable, attached to the trunk (12), and not a circuit board in the best mode. The distance between the plurality of LEDs and the remote phosphor up-conversion unit (40, 440) is configured so that 1 the temperature of the remote phosphor up-conversion unit is 40 ± 10 C°, and said LED is at 130 ± 30 C° temperature. The combination of being able to control a separation (41) between the remote phosphor up-conversion unit and the LEDs and having multiple LEDs emit to a single remote phosphor up-20 conversion unit has a great synergistic advantage: this provides a very energy efficient way of designing complex emission spectra that can be used on an industrial scale.
摘要:
The invention is directed to providing artificial light optimally to plants during its growth cycle in a greenhouse (350)or growth chamber.This is achieved effectively by moving both the lighting device (2, 3 and 4) and its emission pattern to maximise incident light on the plants (5, 6 and 7) being cultivated. A horticultural lighting device of the invention illuminates plants so that said lighting device (2, 3 and 4) is moved vertically and at least one light emitter (3 and 4) and/or reflector (2) is rotated to maximize light exposure from said lighting device on said plants(5, 6 and 7). In the best mode the movable and rotatable lighting device is used to grow very high plants. The lighting device (2, 3 and 4) is moved by a motor programmed to change the position of the lighting device and the orientation of the emission pattern in accordance with the growth cycle of the plants in the greenhouse (350) to maximise incident flux on said plants(5, 6 and 7).
摘要:
The invention relates to lighting method and devices that can be used to treat a seedling (210, 310) in a growth chamber (360) or greenhouse (200) prior to the introduction of the seedling to outdoors. One aspect of the invention is a light (220, 320, 321) by which the plants can be prepared for the outdoors, by giving them certain wavelengths of light they do not currently receive from the light in the greenhouse or growth chambers. The light of the invention can be applied in smaller doses during the major part of nursing of the seedlings or as a sun-shock period in the end of the indoors nursing period. By giving the seedlings light from the invention, they are prepared to Sun light and do not need to spend a few weeks under the sunshade curtains. The invention thus shortens the growth cycle of tree seedlings, enhances the proportion of viable seedlings and eliminates one work phase in the growth process, thus improving the economics of seedling cultivation.