WO2009046548A2 - Procédé et ensemble utilisant des diodes électroluminescentes (led) permettant de faire pousser des plantes - Google Patents

Procédé et ensemble utilisant des diodes électroluminescentes (led) permettant de faire pousser des plantes Download PDF

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Publication number
WO2009046548A2
WO2009046548A2 PCT/CA2008/002169 CA2008002169W WO2009046548A2 WO 2009046548 A2 WO2009046548 A2 WO 2009046548A2 CA 2008002169 W CA2008002169 W CA 2008002169W WO 2009046548 A2 WO2009046548 A2 WO 2009046548A2
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WIPO (PCT)
Prior art keywords
leds
white
luminous flux
providing
basically
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Ceased
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PCT/CA2008/002169
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English (en)
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WO2009046548A3 (fr
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Michael Herbert Williamson
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Individual
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Priority to PCT/CA2008/002169 priority Critical patent/WO2009046548A2/fr
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Publication of WO2009046548A3 publication Critical patent/WO2009046548A3/fr
Anticipated expiration legal-status Critical
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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
    • A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14—Measures for saving energy, e.g. in green houses

Definitions

  • the present invention refers, in general, to lighting systems providing selectable colors, and,
  • LEDs light emitting diodes
  • An electric light source for plants must not only provide an adequate intensity of light but also
  • Photosynthetic plants make use of specific of specific wavelengths i.e. colors of light as
  • plants are determined by the specific light receptors and physiological needs present in the plant.
  • LEDs have no excess heat problem, hence they can be arranged relatively close to the cultured
  • LEDs present the advantage of long
  • Apparatus for Irradiation of Plants Using Light Emitting Diodes discloses the use of high-
  • LEDs to supplement natural or artificial light.
  • LEDs have a peak emission of 435 nm
  • LEDs have a peak emission of 455 run.
  • Another example is United States Patent No. 6,921,182 granted on JuI. 26, 2005 to Anderson, Jr. et al. for an "Efficient LED lamp for Enhancing Commercial and Home Plant Growth" describes the use of a first set of orange LEDs with a peak wavelength emission of about 612 nm, a second set of red light emitting LEDs with a peak wavelength of about 660 nm, and blue light LEDs.
  • a basic objective of the present invention is to develop a method and an assembly to carry out the method to provide specified power spectra in the distribution of artificial light for enhancing or inhibiting budding, for enhancing or inhibiting flowering, for enhancing germination, for enhancing leafiness of the plant, for obtaining a strong and/or lengthy stem, for having a stronger plant, for getting a bigger harvest, and/or for advancing or restraining ripening of a fruit or vegetable.
  • Another important objective of the present invention is to ensure reproducibility of the operations and, consequently, of the results.
  • Yet another objective of the present invention is to develop an apparatus environmentally friendly.
  • Yet another objective of the present invention is to use heat conductive means to maximize efficiency and life expectancy of the assembly.
  • the method using light emitting diodes (LEDs) for plant-growing is carried out by one or more assemblies, wherein each one of the one or more assemblies comprises
  • housing subassembly used for attaching all other means of the assembly using light emitting diodes for plant- growing, the housing subassembly incorporating a base situated in its interior and a printed circuit board connected to the base; - a lighting subassembly attached to the base and facing towards a bottom of the housing subassembly; and
  • a light controller subassembly for controlling the lighting subassembly.
  • the method using light emitting diodes for plant-growing includes the following operations:
  • red (R) LEDs providing a red light spectrum having a luminous flux proper to red (R) LEDs and a dominant wavelength basically of 625 nm;
  • amber light spectrum having a luminous flux proper to amber (A) LEDs and a dominant wavelength basically of 590 nm.
  • the above described method further comprises the following operations:
  • the method using light emitting diodes (LEDs) for plant-growing includes the following operations:
  • each N white (W) LEDs a white light spectrum incorporating a blue component and defined by a color temperature generally in a range of 5000-6000K and a luminous flux proper to white (W) LEDs available on the market;
  • each said 3N/8 red (R) LEDs a red light spectrum generally providing 70% of said luminous flux of each said white (W) LEDs available on the market and, basically, a dominant wavelength of 625 ran;
  • each said 3N/8 amber an amber light spectrum generally providing a luminous flux equal to 90% of said luminous flux of each said N white (W) LEDs, and, basically, a dominant wavelength of 590 nm.
  • the above method when uses at least one module, further comprises N/8 cyan (C) LEDs and N/8 blue (B) LEDs, so that the N white (W) LEDs constitutes 50% of a total number of LEDs used by that at least one LEDs module; b) the 3N/8 red (R) LEDs constitutes 18.75 of the total number of LEDs used by that at least one LEDs module; the 3N/8 amber (A) LEDs constitutes 18.75 of the total number of LEDs used by that at least one LEDs module; the N/8 cyan (C) constitutes 6.25 of the total number of LEDs used by that at least one LEDs module; and the N/8 blue (B) LEDs constitutes 6.25 of the total number of LEDs used by that at least one LEDs module.
  • the method further includes the operations of:
  • each N/8 cyan (C) LEDs a cyan light spectrum providing 60% of the luminous flux of each N (white) LEDs and, basically, having a dominant wavelength of 505nm; and - displying by each N/8 blue (B) LEDs, 20% of the luminous flux of the N (white) LEDs and, basically, having a dominant wavelength of 460nm.
  • LEDs light emitting diodes
  • housing subassembly used for attaching all other means of the assembly;
  • the housing subassembly incorporates a base situated in its interior and a printed circuit board connected to the base;
  • the assembly using light emitting diodes for plant-growing includes
  • - LEDs for providing a white light spectrum incorporating a blue component and defined by a color temperature generally in a range of 5000-6000K and a luminous flux proper to white (W) LEDs available on the market;
  • - LEDs means for providing a red light spectrum having a luminous flux proper to red (R) LEDs and a dominant wavelength basically of 625 nm;
  • - LEDs means for providing an amber light spectrum having a luminous flux proper to amber (A) LEDs and a dominant wavelength basically of 590 nm; and when more than one assemblies are coupled together, their synchronization is necessary.
  • the above assembly further comprises:
  • - LEDs for providing a cyan light spectrum having a luminous flux proper to cyan (C) LEDs and a dominant wavelength basically of 505 nm.
  • the assembly using light emitting diodes (LEDs) for plant-growing comprises:
  • the subassembly for housing used for attaching all other subassemblies of the assembly using artificial light for plant- growing;
  • the subassembly for housing incorporates a base situated in its interior and a printed circuit board connected to said base;
  • Figure 1 illustrates an exploded view of the assembly using artificial light for plant-growing of the present invention
  • Figure 2 is a perspective view of the housing subassembly of the assembly using artificial light for plant-growing;
  • Figure 3 is a top diagrammatic view of the lighting subassembly
  • Figure 4 is an exploded view of light controller subassembly
  • Figure 5 is a block diagram of light controller
  • FIG. 6 is a block diagram of FPGA operation section
  • Figure 7 is a block diagram of LED driver section.
  • FIG. 1 An assembly using artificial light for plant-growing 10 is shown in Fig. 1. It is to be agreed, that terms such as “upper”, “lower”, “inward”, “outward”, “rearward”, “front”, “back”, “side”, “top”, “bottom”, “left” and “right” are conventionally used in the present specification with reference to the normal position in which assembly using artificial light for plant-growing 10 would be used.
  • the assembly using artificial light for plant-growing 10 comprises:
  • a housing subassembly 100 (see Fig 2);
  • a transparent window 175 located and attached at the bottom of housing subassembly using artificial light for plant-growing 100;
  • a front electric flat cable 192 located in the interior of housing subassembly 100, close to its front end;
  • a back electric flat cable 193 located in the interior of housing subassembly 100, close to its back end;
  • a switching power supply 195 located in the middle of housing subassembly 100;
  • a power supply support 196 connected to switching power supply 195;
  • Cooling fans 198 located in housing subassembly 100, under top cover 170 ;
  • a lighting subassembly 200 attached in the interior of housing subassembly 100 and facing transparent window 175;
  • a lighting controller subassembly 300 inserted in the interior of housing subassembly 100 and located in a front zone of the latter.
  • HOUSING SUBASSEMBLY 100 Housing subassembly 100 has a unitary structure, made by extrusion from aluminum, and incorporates a horizontally disposed support 105.
  • Two internally threaded sleeves 115 extend horizontally and inwardly from each longitudinal extremity of horizontally disposed support 105. Each internally threaded sleeve 115 is located between two adjacent vertical fins 110 of the plurality of vertical fins 110.
  • Horizontally disposed support 105 is flanked longitudinally by two C-shaped, outwardly open channels 120 and is traversed by a multiplicity of threaded openings 125.
  • a pair of walls 130 extends upwardly along longitudinal extremities of the two C-shaped, outwardly open channels 120. Each wall 130 extends, along its upper end, into a strip 135 that projects inwardly and horizontally.
  • a guiding channel G is bordered upwardly by strip 135, laterally by an upper portion of an adjacent wall 130 and downwardly by an internally threaded socket 140. The latter extends at each longitudinal extremity of guiding channel G.
  • Two guiding channels G are formed; they are oppositely disposed and used to receive a lighting controller subassembly using artificial light for plant-growing 300 and power supply 195.
  • Each strip 135 incorporates several threaded perforations 145 spaced along its length.
  • Two slanted wings 150 extends downwardly and outwardly from each C-shaped, outwardly open channels 120.
  • a relatively narrow, stepped wall 155 extends horizontally and inwardly along an internal surface of each one of the two slanted wings 150. Stepped wall 155 is approximately located at midway of each one of two slanted wings 150 width.
  • a horizontal inwardly projecting stepped 160 of stepped wall 155 is provided along its length with several threaded holes 165.
  • Housing subassemblylOO includes, as well, a plate-cover 170 made of aluminum. Plate cover
  • Housing subassembly 100 further includes a panel 175 made of transparent material. Panel 175 is placed on horizontal inwardly projecting step 160 of stepped wall 155, via two straps 180.
  • Each strap 180 is attached to each horizontal inwardly projecting step 160 by screws (not shown).
  • Housing subassembly 100 includes a rear cover 185 placed perpendicularly at the rear of lateral walls 130 and kept in place by screws (not shown) inserted into internally threaded sockets 115 and 140.
  • Housing subassembly 100 includes a front cover 190 placed perpendicularly at the front of lateral walls 130 and kept in place by screws (not shown) inserted into internally threaded sockets 115 and 140.
  • the lighting subassembly using artificial light for plant-growing 200 is attached by screws (not shown) to the base 105.
  • the lighting controller subassembly 300 is inserted in the housing subassembly 100 by sliding the extremities of the light controller support 392 (see later in the description of light controller subassembly 300) in opposite internally threaded sockets 140.
  • the light controller support 392 is secured by screws (not shown) to front cover 190.
  • Flat cable 192 is connected to the positive polarity of the light subassembly 200 via a pins header 208 (see later in the description of light subassembly 200).
  • Flat cable 193 is connected to the negative polarity of the light subassembly 200 via a pins header 210.
  • Power supply 195 of a conventional type converts the electric energy from the electric public grid to a lower voltage of 32V DC and a power of 300 watts.
  • Power supply unit 195 is inserted in a metallic support 196 and kept in place by screws (not shown).
  • the whole power supply subassembly using artificial light for plant-growing is inserted into housing channels 140.
  • Two 16 AWG electric wires (not shown) are used to deliver the power to the light controller subassembly 300.
  • Public grid electricity is transported by a conventional three wires cable (not shown) from a standard outlet receptacle to the power supply 195.
  • a cooling device is used to control the heat in the housing subassembly 100 via two fans 198 that direct an outside cool air towards internal fins 110.
  • Lighting subassembly 200 (Fig. 3) comprises a base 202; and three identical LED modules 204 (incorporating high power LEDs - further called merely LEDs) mounted on and secured to base 202.
  • Base 202 incorporates a printed circuit board on an aluminum substrate.
  • said light subassembly 200 incorporates LEDs for providing the following color spectra:white (W), red (R), and amber (A).
  • White (W) light spectrum incorporates a blue component and is defined by a color temperature generally in a range of 5000-6000K and a luminous flux proper to white (W) LEDs available on the market.
  • Red (R) light spectrum has a luminous flux proper to red (R) LEDs and a dominant wavelength basically of 625 nm.
  • Amber (A) light spectrum has a luminous flux proper to amber (A) LEDs and a dominant wavelength basically of 590 nm.
  • the method using light emitting diodes for plant-growing includes the following operations:
  • red (R) LEDs providing a red light spectrum having a luminous flux proper to red (R) LEDs and a dominant wavelength basically of 625 nm;
  • amber light spectrum having a luminous flux proper to amber (A) LEDs and a dominant wavelength basically of 590 nm.
  • the foregoing method further incorporates the following steps:
  • each of the three identical LED modules 204 includes 16 LEDs 206, which provide the following color spectra: white (W), red (R), amber (A), cyan (C) and blue (B).
  • N white (W) LEDs 206 constituting 50 % of a total of 16 LEDs 206;
  • 3N/8 red (R) LEDs 206 constituting 18,75 % of the total of 16 LEDs 206;
  • white (W) LEDs 206 provide a light spectrum incorporating a blue component and defined by a color temperature generally of a range of 5000-6000K and a luminous flux corresponding to white LEDs available on the market;
  • red (R) LEDs 206 each of them basically displaying a red light spectrum
  • cyan (C) LEDs 206 provide an cyan light spectrum having a luminous flux corresponding to cyan LEDs available on the market and a dominant wavelength basically of 505nm;
  • B LEDs 206 provide an blue light spectrum corresponding to blue LEDs available on the market and a dominant wavelength basically of 460nm.
  • a basic system of growing plants can be limited to white, red, amber spectra.
  • each LED 206 of a color incorporated in one of the three identical LEDs modules 204 is connected in series with a corresponding, successive LEDs of other modules 204 and finally to the right connectors 210.
  • Light controller subassembly 300 (Fig 4) comprises: a printed circuit board 301 ; a controller unit 305; a LED driver unit 330; a synchronization unit 340; a memory card unit 360; an user interface unit 370; a power supply unit 380;
  • Controller unit 305 includes a microcontroller 307, such as, for example, ATMEGA 128 manufactured by ATMEL. This microcontroller 307 has a FLASH ROM of 128KB, several input-output ports, serial communication ports, analog to digital converter and can reach a speed of 20 MHz;
  • a Field Programmable Gate Array (further called FPGA) 310 (see FIG. 6), for example Spartan 3 made by Xilinx, comprises a current controller 311 and pulsation controller 312 connected to a LED drivers 330.
  • the FPGA 310 receives commands from microcontroller 307 via a SPI serial bus 313.
  • FPGA 310 comprises an external clock signal 31 Oa of 100MHz that synchronizes the entire internal operation of FPGA 310.
  • a reset signal 31 Ob supplied by microcontroller 307 reinitializes to a default value for each registers 310 (g-m).
  • a serial communication bus 310c is connected to microcontroller 307. Serial data from the serial communication bus 310c are converted to parallel data 310e by a Synchronizing Serial I/O block 310d. Parallel data 310d are decoded and routed to each specific registers by the Address Decoder and Data Multiplexer block 31 Of. Each registers having its own independent address, can be controlled individually by microcontroller 307.
  • a current control function device 311 comprises a Fixed Prescaler 31Og that reduces the frequency of external clock signal 31 Oa to a lower frequency, about one hundred of KHz. This lower frequency incrementally increases the value of 8 Bit Binary Counter register 310h, which value will be correlated by comparators 310i to a value of a Current Adjust Register 310j. When the value of the 8 Bit Binary Counter register 310h is less than the value in the Current Adjust Register 310j, the digital signal 310p is at its lower state. When the value of the 8 Bit Binary Counter register 31Oh is higher than the value in the Current Adjust Register 31Oj, the digital signal 31Op is at its higher state.
  • a digital signal 31Oo is a pulsation at a fixed frequency and varies in duty cycle that serves to adjust the amount of current in each of several LED channels 31 la-p.
  • a similar function is applied to the digital signal 31Op that serves to control the LED pulsation in variable frequency and variable duty cycle in each of several LED channels 312a-p.
  • a Programmable Prescaler 310k adjusts a frequency signal, according to a user preference, that increments an 8 bit Binary Counter 3101.
  • a value in the Binary Counter 3101 is compared to a value in the Pulse Width Register 31 Om by a comparator 31 On that generate an output signal.
  • the same concept is also applied to all of the remaining 15 channels.
  • the microcontroller 307 for monitoring the temperature, uses analog input ports 314 and read a voltage provided by a thermistor 315 located on light subassembly using artificial light for plant- growing 200. The temperature is compared to a maximum threshold value. During a normal operation, the microcontroller 307 activates fans 198, mounted inside housing 100, to cool down the light subassembly 200. If a temperature passes the threshold value, the microcontroller 307 automatically turns off light subassembly 200 and activates an over temperature indicator, incorporated in LED indicators 370.
  • LED drivers 330 comprise of 4 LED drivers IC 330a of the type LT3476, made by Linear Technologies, and include 4 constant current outputs per LED drivers IC 330a of channels 1-16 (reference number 331).
  • a digital to analog conversion circuit 330c made by a second order low-pass filter, extracts an average DC voltage 310b from a pulsation signal 310d, provided by a current control 311 embedded in FPGA 310.
  • a voltage 330b adjusts proportionally a current for each channel 331.
  • a pulsation signal 330e provided by a pulsation control 312 embedded in FPGA 310, alternates between on and off in each channels 331, thereby providing energy saving and a beneficial dark period.
  • Each channel 331 is driven by a constant current switching power supply (not shown).
  • a switching element (incorporated within LED driver IC 330a and not shown) controls the amount of current passing through each channel 331 via a current sense circuit 330f.
  • a buck type topology constituted by an inductor 33Og and a diode 330h converts the energy supplied to lighting subassembly using artificial light for plant-growing 200.
  • a multi-fixture synchronization unit 340 allows a synchronization signal 341 from a preceding lighting subassembly using artificial light for plant-growing 200 (when several lighting subassemblies are used) to be successively conveyed to the next lighting subassembly using artificial light for plant-growing 200 in a daisy chain configuration.
  • Synchronization signal 341 acts on all lighting subassemblies 200 to turn on and off simultaneously. The first lighting subassembly using artificial light for plant-growing 200 in the chain initiates the pulsation of the other lighting subassemblies 200.
  • Synchronization signal 341 is the type of Low Voltage
  • LVDS Differential Signal
  • a simple twisted-pair cable (not shown) interconnects different lighting subassemblies 200.
  • Signal LVDS is converted to a required level by a TTL 342 via a signal level translator 345.
  • TTL 342 signal is attached to microcontroller 307.
  • a memory card interface 360 is connected to microcontroller 310 via a serial communication bus
  • a memory card 361 similar to SD card type, contains information on a specific program adapted to various plant types according to the color, time, pulse and frequency.
  • LED indicators 370 display several system components status of temperature, master and slave units and power.
  • Power supply DC -DC converter 380 transforms the main 32 V DC source to different DC voltages, required by electronic components.
  • a conventional DC to DC converter (not shown) is used. The latter achieves up to 90% of efficiency and, thus, reduces the amount of released heat.

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Botany (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Cultivation Of Plants (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

La présente invention concerne un procédé et un ensemble permettant de faire pousser des plantes, le procédé comprenant les opérations consistant à : fournir un spectre de lumière blanche intégrant un composant bleu et une température de couleur dans une plage de 5 000 à 6 000 K ainsi qu'un flux lumineux propre aux LED blanches (W) ; fournir un spectre de lumière rouge présentant un flux lumineux propre aux LED rouges (R) et une longueur d'onde dominante fondamentalement de 625 nm ; et fournir un spectre de lumière orange présentant un flux lumineux propre aux LED oranges (A) et une longueur d'onde dominante fondamentalement de 590 nm. L'ensemble comprend un sous-ensemble formant boîtier, un sous-ensemble destiné à l'éclairage et un sous-ensemble destiné à commander l'éclairage par l'ensemble. Le sous-ensemble d'éclairage comprend une base et trois modules à LED fixés à la base. Chacun des trois modules à LED comprend des LED fournissant fondamentalement les spectres colorés suivants : blanc, rouge et ambre.
PCT/CA2008/002169 2008-12-15 2008-12-15 Procédé et ensemble utilisant des diodes électroluminescentes (led) permettant de faire pousser des plantes Ceased WO2009046548A2 (fr)

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WO2020139305A1 (fr) * 2018-12-27 2020-07-02 Алексей СВИСТУНОВ Système de diode électroluminescente ajustable et procédé d'éclairage additionnel de plantes dans des serres
US11058889B1 (en) 2017-04-03 2021-07-13 Xiant Technologies, Inc. Method of using photon modulation for regulation of hormones in mammals
JP2021166170A (ja) * 2020-04-08 2021-10-14 公立大学法人 富山県立大学 照明装置と照明システム及び金属筐体の製造方法
US11278009B2 (en) 2013-03-05 2022-03-22 Xiant Technologies, Inc. Photon modulation management system for stimulation of a desired response in birds

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