CA2873243A1 - Method for adjusting a plant lighting spectrum - Google Patents
Method for adjusting a plant lighting spectrum Download PDFInfo
- Publication number
- CA2873243A1 CA2873243A1 CA2873243A CA2873243A CA2873243A1 CA 2873243 A1 CA2873243 A1 CA 2873243A1 CA 2873243 A CA2873243 A CA 2873243A CA 2873243 A CA2873243 A CA 2873243A CA 2873243 A1 CA2873243 A1 CA 2873243A1
- Authority
- CA
- Canada
- Prior art keywords
- plant
- spectrum
- adjusting
- led
- excitation source
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
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
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- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Cultivation Of Plants (AREA)
- Led Device Packages (AREA)
Abstract
A method for adjusting the spectrum of a lighting for plants (1). The method adjusts an LED excitation source (3) and a florescent powder (4), where the type and ratio of a chip of the LED excitation source is comprised, and the type and ratio of the florescent powder is also comprised. These adjustments are determined on the basis of different needs (6) of various plants for the spectrum, thus allowing for a great increase in the degree of freedom in adjusting the spectrum. In addition, the needs of the plants for different spectra are met by changing an LED lighting optical component (5), thus allowing for greatly convenient manufacturing and ultimate application of the lighting.
Description
Translation from Chinese into English WO 2013/023467 Al METHOD FOR ADJUSTING A PLANT LIGHTING SPECTRUM
FIELD OF THE INVENTION
[0001] The present invention relates to the technical field of plant illumination, in particular, to a method for adjusting a plant lighting spectrum.
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
[0001] The present invention relates to the technical field of plant illumination, in particular, to a method for adjusting a plant lighting spectrum.
BACKGROUND OF THE INVENTION
[0002] Light is an indispensable energy source to photosynthesis of green plants.
Also, the morphogenesis and geographic distribution of plants are affected by the light. The light influence factors on plants include intensity, characteristic and duration. Regulating the intensity, characteristic and duration of the light illuminating to the plants according to the growth characteristics of the plants can not only promote the rapid plant growth, but also change the geographical and seasonal attributes of the plant. The traditional plant illumination technology uses high-pressure sodium lamps, fluorescent lamps, metal halide lamps, incandescent lamps and so on, which are subjected not only to large energy consumption and high operating cost, but also to large spectral width, uncontrollable light characteristic and short operation life. A light emitting diode (LED) light source in the field of plant illumination provides following unique advantages: selectable specific wavelength, and concentrated bands (i.e., narrow spectral line); up to 50,000-100,000 hours operational life, which is more than 10 times of the normal illumination lamps; as a low heat emitting light source enabling a close illumination, the number of the cultivated plant layers and thus the space utilization can be significantly increased; small in size and robust against impact;
the discrete point characteristic facilitates various light distribution and structural design for lamps; using DC power, and thus being used with the wind power or the solar power; the power can be further saved by regulating the frequency and duty cycle; and the control of intensity and characteristic of the light can be achieved by regulating the current.
Also, the morphogenesis and geographic distribution of plants are affected by the light. The light influence factors on plants include intensity, characteristic and duration. Regulating the intensity, characteristic and duration of the light illuminating to the plants according to the growth characteristics of the plants can not only promote the rapid plant growth, but also change the geographical and seasonal attributes of the plant. The traditional plant illumination technology uses high-pressure sodium lamps, fluorescent lamps, metal halide lamps, incandescent lamps and so on, which are subjected not only to large energy consumption and high operating cost, but also to large spectral width, uncontrollable light characteristic and short operation life. A light emitting diode (LED) light source in the field of plant illumination provides following unique advantages: selectable specific wavelength, and concentrated bands (i.e., narrow spectral line); up to 50,000-100,000 hours operational life, which is more than 10 times of the normal illumination lamps; as a low heat emitting light source enabling a close illumination, the number of the cultivated plant layers and thus the space utilization can be significantly increased; small in size and robust against impact;
the discrete point characteristic facilitates various light distribution and structural design for lamps; using DC power, and thus being used with the wind power or the solar power; the power can be further saved by regulating the frequency and duty cycle; and the control of intensity and characteristic of the light can be achieved by regulating the current.
[0003] In a normal LED plant illumination lamp, LED chips with corresponding bands are selected and configured according to the spectrum demand of the plant growth. As different plants need different illumination wavelengths during growth, it is necessary to provide an appropriate LED chip "menu" for a specific plant. However, this method involves numerous types of chips, and some LED chips with specific wavelength may need to be customized according to different wavelength demands. The method in which the spectral power distribution of the LED lamp is adjusted by adjusting the type and combination of the LED chips will result in an increase of the manufacturing cost of the lamp and cause great inconvenience in the application process.
SUMMARY OF THE INVENTION
SUMMARY OF THE INVENTION
[0004] In view of the deficiencies in the prior art, the present invention provides a method for adjusting a plant lighting spectrum, wherein an LED excitation source can excite at least one of fluorescent powders on a lamp optical device according to the demands of a designated plant on its preferred spectrum, so as to obtain a required plant growth spectrum.
[0005] In order to solve above problems, the present invention provides following technical solutions.
[0006] A method for adjusting a plant lighting spectrum comprises steps of:
selecting a chip type for a LED excitation source according to a spectrum demand of a plant;
selecting and providing different types of fluorescent powders to be disposed on a lamp optical device;
determining a ratio of the different types of the fluorescent powders according to the spectrum demand of the plant; and exciting at least one of the fluorescent powders on the lamp optical device by the LED excitation source to obtain a required plant growth spectrum.
A digital information about a spectral power distribution curve of the plant is stored in a database related to the required plant growth spectrum. The selection of the chip type for the LED excitation source, the types and the ratio of the fluorescent powders on the lamp optical device are determined by the spectral power distribution curve required by plant growth.
The LED excitation source is a blue LED or an ultraviolet LED.
The lamp optical device is a transparent cover, a lens or a light reflecting cover.
The effect of the technical solution of the present invention may include: by adjusting the LED excitation source and the fluorescent powders, including adjusting the types and the ratio of chips in the LED excitation source, and adjusting the types and the ratio of the fluorescent powders, which depend on different spectrum needs of the various plants, greater freedom in the spectrum adjustments could be provided. In addition, by changing the LED optical device of the lamp to meet the needs of the plants for different spectra, the manufacturing and ultimate application of the lamp will be more convenient, and the manufacturing and application costs of the lamp will be greatly reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
selecting a chip type for a LED excitation source according to a spectrum demand of a plant;
selecting and providing different types of fluorescent powders to be disposed on a lamp optical device;
determining a ratio of the different types of the fluorescent powders according to the spectrum demand of the plant; and exciting at least one of the fluorescent powders on the lamp optical device by the LED excitation source to obtain a required plant growth spectrum.
A digital information about a spectral power distribution curve of the plant is stored in a database related to the required plant growth spectrum. The selection of the chip type for the LED excitation source, the types and the ratio of the fluorescent powders on the lamp optical device are determined by the spectral power distribution curve required by plant growth.
The LED excitation source is a blue LED or an ultraviolet LED.
The lamp optical device is a transparent cover, a lens or a light reflecting cover.
The effect of the technical solution of the present invention may include: by adjusting the LED excitation source and the fluorescent powders, including adjusting the types and the ratio of chips in the LED excitation source, and adjusting the types and the ratio of the fluorescent powders, which depend on different spectrum needs of the various plants, greater freedom in the spectrum adjustments could be provided. In addition, by changing the LED optical device of the lamp to meet the needs of the plants for different spectra, the manufacturing and ultimate application of the lamp will be more convenient, and the manufacturing and application costs of the lamp will be greatly reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Fig. 1 is a schematic block diagram of an embodiment of the present invention.
BRIEF DESCRIPTION OF THE PREFERRED EMBODIMENTS
BRIEF DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0008] Hereinafter, the present invention will be described in detail with respect to the embodiment and the appended figure.
[0009] As shown in Fig.1, A method for adjusting a plant lighting spectrum comprises steps of:
selecting a chip type for a LED excitation source 3 according to a spectrum demand of a plant 1;
selecting and providing different types of fluorescent powders to be disposed on a lamp optical device 5;
determining a ratio of the different types of the fluorescent powders 4 according to the spectrum demand of the plant 1; and exciting at least one of the fluorescent powders 4 on the lamp optical device by the LED excitation source 3 to obtain a required plant growth spectrum 6.
selecting a chip type for a LED excitation source 3 according to a spectrum demand of a plant 1;
selecting and providing different types of fluorescent powders to be disposed on a lamp optical device 5;
determining a ratio of the different types of the fluorescent powders 4 according to the spectrum demand of the plant 1; and exciting at least one of the fluorescent powders 4 on the lamp optical device by the LED excitation source 3 to obtain a required plant growth spectrum 6.
[0010] A digital information about a spectral power distribution curve of the plant 1 is stored in a database 2 related to the required plant growth spectrum. The selection of the chip type for the LED excitation source 3, the types and the ratio of the fluorescent powders 4 on the lamp optical device 5 are determined by the spectral power distribution curve required by the plant growth.
[0011] The LED excitation source 3 may be a blue LED or an ultraviolet LED.
The lamp optical device 5 may be a transparent cover, a lens or a light reflecting cover.
The lamp optical device 5 may be a transparent cover, a lens or a light reflecting cover.
[0012] In short, the content described above is only a preferred embodiment of the present invention. All of the equivalent variations and modifications made in accordance with the scope of the present invention should fall into the scope of protection of the present invention.
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED IS DEFINED AS FOLLOWS:
1. A method for adjusting a plant lighting spectrum, the method comprising steps of:
selecting a chip type for a LED excitation source according to a spectrum demand of a plant;
selecting and providing different types of fluorescent powders to be disposed on a lamp optical device ;
determining a ratio of the different types of the fluorescent powders according to the spectrum demand of the plant; and exciting at least one of the fluorescent powders on the lamp optical device by the LED excitation source to obtain a required plant growth spectrum.
selecting a chip type for a LED excitation source according to a spectrum demand of a plant;
selecting and providing different types of fluorescent powders to be disposed on a lamp optical device ;
determining a ratio of the different types of the fluorescent powders according to the spectrum demand of the plant; and exciting at least one of the fluorescent powders on the lamp optical device by the LED excitation source to obtain a required plant growth spectrum.
2. The method for adjusting a plant lighting spectrum according to claim 1, wherein a digital information about a spectral power distribution curve of the plant is stored in a database related to the required plant growth spectrum, the selection of the chip type for the LED excitation source, the types and the ratio of the fluorescent powders on the lamp optical device are determined by the spectral power distribution curve required by plant growth.
3. The method for adjusting a plant lighting spectrum according to claim 1, wherein the LED excitation source is a blue LED or an ultraviolet LED.
4. The method for adjusting a plant lighting spectrum according to claim 1, wherein the lamp optical device is a transparent cover, a lens or a light reflecting cover.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110234239.1 | 2011-08-16 | ||
| CN2011102342391A CN102415291A (en) | 2011-08-16 | 2011-08-16 | Spectrum adjusting method for plant illumination |
| PCT/CN2012/075583 WO2013023467A1 (en) | 2011-08-16 | 2012-05-16 | Method for adjusting spectrum of lighting for plants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2873243A1 true CA2873243A1 (en) | 2013-02-21 |
Family
ID=45940134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2873243A Abandoned CA2873243A1 (en) | 2011-08-16 | 2012-05-16 | Method for adjusting a plant lighting spectrum |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102415291A (en) |
| CA (1) | CA2873243A1 (en) |
| WO (1) | WO2013023467A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415291A (en) * | 2011-08-16 | 2012-04-18 | 浙江晶日照明科技有限公司 | Spectrum adjusting method for plant illumination |
| EP2710883A1 (en) * | 2012-09-24 | 2014-03-26 | Heliospectra AB | Spectrum optimization for artificial illumination |
| CN103557452A (en) * | 2013-10-15 | 2014-02-05 | 浙江晶日照明科技有限公司 | Automatic spectral power distribution adjustable light-emitting diode (LED) plant light supplementing lamp |
| CN104462747B (en) * | 2014-10-17 | 2017-05-10 | 复旦大学 | Photometry method for evaluating influence of artificial lighting on photosynthesis of garden plants |
| CN107876553A (en) * | 2017-11-08 | 2018-04-06 | 浙江省能源与核技术应用研究院 | A kind of heavy-metal contaminated soil plant accelerates restorative procedure |
| CN113883477B (en) * | 2021-09-24 | 2023-09-05 | 中国农业科学院都市农业研究所 | Animal and plant lighting equipment, system and method based on back reflection |
| CN114766230A (en) * | 2022-05-24 | 2022-07-22 | 深圳市美斯特光电技术有限公司 | Spectrum-adjustable plant lighting lamp and spectrum adjusting method thereof |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101133707B (en) * | 2007-08-24 | 2010-05-26 | 中国计量学院 | Method for regulating the growth of plants by using LED light source and device thereof |
| JP2009176661A (en) * | 2008-01-28 | 2009-08-06 | Nec Lighting Ltd | Led illumination apparatus |
| NL1035261C1 (en) * | 2008-04-07 | 2009-10-08 | Barry Mos | Exposure device for growth improvement of plants, has set of LEDs for emitting light that passes through transformation medium, such that light is transformed into deep-red light with specific wavelength |
| CN201228867Y (en) * | 2008-06-06 | 2009-04-29 | 宁波永丰园林绿化建设有限公司 | LED semiconductor plant light supplement lamp |
| CN101531901A (en) * | 2009-04-16 | 2009-09-16 | 复旦大学 | Ultraviolet purple light excited red and blue transmitted phosphosilicate fluorescent powder |
| CN201416781Y (en) * | 2009-06-25 | 2010-03-03 | 李欣洋 | LED light source using optical device with COC transparent substrate |
| CN101990828A (en) * | 2009-08-25 | 2011-03-30 | 东莞市友美电源设备有限公司 | Method for regulating plant growth by using LED light source and LED plant illumination lamp |
| CN101644395B (en) * | 2009-09-04 | 2011-02-16 | 中国科学院上海技术物理研究所 | Special spectrum simulation illumination device for plant cultivation and simulation method |
| CN201611030U (en) * | 2010-01-26 | 2010-10-20 | 亚德光机股份有限公司 | Light-emitting diode lamp set |
| CN102415291A (en) * | 2011-08-16 | 2012-04-18 | 浙江晶日照明科技有限公司 | Spectrum adjusting method for plant illumination |
| CN102287713A (en) * | 2011-08-16 | 2011-12-21 | 浙江晶日照明科技有限公司 | Adjustable spectrum lamp for plant irradiation |
-
2011
- 2011-08-16 CN CN2011102342391A patent/CN102415291A/en active Pending
-
2012
- 2012-05-16 CA CA2873243A patent/CA2873243A1/en not_active Abandoned
- 2012-05-16 WO PCT/CN2012/075583 patent/WO2013023467A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013023467A1 (en) | 2013-02-21 |
| CN102415291A (en) | 2012-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20170516 |