WO2009074602A3 - Led lighting system cooled with aqueous liquid, in particular for greenhouses - Google Patents

Led lighting system cooled with aqueous liquid, in particular for greenhouses Download PDF

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Publication number
WO2009074602A3
WO2009074602A3 PCT/EP2008/067201 EP2008067201W WO2009074602A3 WO 2009074602 A3 WO2009074602 A3 WO 2009074602A3 EP 2008067201 W EP2008067201 W EP 2008067201W WO 2009074602 A3 WO2009074602 A3 WO 2009074602A3
Authority
WO
WIPO (PCT)
Prior art keywords
lighting system
greenhouses
led lighting
aqueous liquid
cooling liquid
Prior art date
Application number
PCT/EP2008/067201
Other languages
French (fr)
Other versions
WO2009074602A2 (en
Inventor
Martijn Jeroen Dekker
Original Assignee
Lemnis Lighting Patent Holding
Martijn Jeroen Dekker
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lemnis Lighting Patent Holding, Martijn Jeroen Dekker filed Critical Lemnis Lighting Patent Holding
Publication of WO2009074602A2 publication Critical patent/WO2009074602A2/en
Publication of WO2009074602A3 publication Critical patent/WO2009074602A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/56—Cooling arrangements using liquid coolants
    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • A01G9/249—Lighting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Abstract

A lighting system is provided comprising a plurality of LED light sources in heat conductive contact with an aqueous cooling liquid. The lighting system comprises a means for inhibiting algae growth in the aqueous cooling liquid. The lighting system is particularly suitable for lighting a greenhouse. The cooling liquid keeps the surface temperature of the LED light sources low enough to allow them to be positioned close to the plants being grown in the greenhouse, thus providing considerable space savings.
PCT/EP2008/067201 2007-12-10 2008-12-10 Led lighting system cooled with aqueous liquid, in particular for greenhouses WO2009074602A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US99687607P 2007-12-10 2007-12-10
US60/996,876 2007-12-10

Publications (2)

Publication Number Publication Date
WO2009074602A2 WO2009074602A2 (en) 2009-06-18
WO2009074602A3 true WO2009074602A3 (en) 2009-07-30

Family

ID=40386237

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/067201 WO2009074602A2 (en) 2007-12-10 2008-12-10 Led lighting system cooled with aqueous liquid, in particular for greenhouses

Country Status (1)

Country Link
WO (1) WO2009074602A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11266081B2 (en) 2018-05-04 2022-03-08 Agnetix, Inc. Methods, apparatus, and systems for lighting and distributed sensing in controlled agricultural environments

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3662201B1 (en) 2017-09-19 2023-06-07 Agnetix, Inc. Fluid-cooled led-based lighting methods and apparatus for controlled environment agriculture
US10999976B2 (en) 2017-09-19 2021-05-11 Agnetix, Inc. Fluid-cooled lighting systems and kits for controlled agricultural environments, and methods for installing same
US11013078B2 (en) 2017-09-19 2021-05-18 Agnetix, Inc. Integrated sensor assembly for LED-based controlled environment agriculture (CEA) lighting, and methods and apparatus employing same
WO2020102453A1 (en) 2018-11-13 2020-05-22 Agnetix, Inc. Fluid-cooled led-based lighting methods and apparatus for controlled environment agriculture

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339066A (en) * 1965-10-22 1967-08-29 Mark B Hart Underwater light for swimming pool
DE4033958A1 (en) * 1990-10-25 1992-04-30 Ardenne Forschungsinst Liq. cooling and filter medium for IR high power radiator - is soln. of pigment with absorption edge of 700 nm and antibacterial substance of high optical transparency
JPH07303809A (en) * 1994-05-12 1995-11-21 Kenji Nakamura Water purification filter for water tank
JPH104852A (en) * 1996-06-18 1998-01-13 Sliontec:Kk Sheet for preventing generation of algae and prevention of generation of algae with the same
EP1300066A1 (en) * 2000-07-07 2003-04-09 Cosmo Plant Co. Ltd. Method of producing plants, plant cultivating device, and light-emitting panel
US20030090893A1 (en) * 2001-11-12 2003-05-15 James Nepil Lighting system and device
JP2003169566A (en) * 2001-12-07 2003-06-17 San Power Kk Lighting apparatus for aquarium and aquarium furnished with lighting apparatus
WO2006069554A1 (en) * 2004-12-30 2006-07-06 Osram Opto Semiconductors Gmbh Cooling device for cooling a semiconductor component, in particular, an optoelectronic semiconductor component
WO2007093607A1 (en) * 2006-02-17 2007-08-23 Lemnis Lighting Ip Gmbh Lighting device and lighting system for stimulating plant growth
WO2008010121A2 (en) * 2006-07-04 2008-01-24 Koninklijke Philips Electronics N.V. Cooling semiconductor-based devices arranged in a greenhouse
EP1933602A1 (en) * 2006-12-13 2008-06-18 Kooymans Beheer B.V. Illumination system for growing plants

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339066A (en) * 1965-10-22 1967-08-29 Mark B Hart Underwater light for swimming pool
DE4033958A1 (en) * 1990-10-25 1992-04-30 Ardenne Forschungsinst Liq. cooling and filter medium for IR high power radiator - is soln. of pigment with absorption edge of 700 nm and antibacterial substance of high optical transparency
JPH07303809A (en) * 1994-05-12 1995-11-21 Kenji Nakamura Water purification filter for water tank
JPH104852A (en) * 1996-06-18 1998-01-13 Sliontec:Kk Sheet for preventing generation of algae and prevention of generation of algae with the same
EP1300066A1 (en) * 2000-07-07 2003-04-09 Cosmo Plant Co. Ltd. Method of producing plants, plant cultivating device, and light-emitting panel
US20030090893A1 (en) * 2001-11-12 2003-05-15 James Nepil Lighting system and device
JP2003169566A (en) * 2001-12-07 2003-06-17 San Power Kk Lighting apparatus for aquarium and aquarium furnished with lighting apparatus
WO2006069554A1 (en) * 2004-12-30 2006-07-06 Osram Opto Semiconductors Gmbh Cooling device for cooling a semiconductor component, in particular, an optoelectronic semiconductor component
WO2007093607A1 (en) * 2006-02-17 2007-08-23 Lemnis Lighting Ip Gmbh Lighting device and lighting system for stimulating plant growth
WO2008010121A2 (en) * 2006-07-04 2008-01-24 Koninklijke Philips Electronics N.V. Cooling semiconductor-based devices arranged in a greenhouse
EP1933602A1 (en) * 2006-12-13 2008-06-18 Kooymans Beheer B.V. Illumination system for growing plants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11266081B2 (en) 2018-05-04 2022-03-08 Agnetix, Inc. Methods, apparatus, and systems for lighting and distributed sensing in controlled agricultural environments

Also Published As

Publication number Publication date
WO2009074602A2 (en) 2009-06-18

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