CN105465677B - A kind of plant illumination light source and its method being irradiated to plant - Google Patents
A kind of plant illumination light source and its method being irradiated to plant Download PDFInfo
- Publication number
- CN105465677B CN105465677B CN201410460468.9A CN201410460468A CN105465677B CN 105465677 B CN105465677 B CN 105465677B CN 201410460468 A CN201410460468 A CN 201410460468A CN 105465677 B CN105465677 B CN 105465677B
- Authority
- CN
- China
- Prior art keywords
- light source
- plant
- light
- irradiated
- chip
- 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.)
- Active
Links
Landscapes
- Cultivation Of Plants (AREA)
Abstract
The illumination needs in plant growth complete period can just be met by only needing to two kinds of different illuminators this application discloses a kind of plant illumination light source and its method being irradiated to plant, in the present invention：One is（Purple light+blue light+blue green light）The luminous power ratio for the light that LED is sent with red light fluorescent powder is 2 to 1（It is called ultraviolet light）；Another is（Purple light+blue light+blue green light）The luminous power ratio for the light that LED is sent with red light fluorescent powder is 1 to 6（It is called powder light lamp）.Due to reducing the species of LED component and using number, it is possible to substantially reduce the cost of lighting source；And also simplify to the LED designs driven and reduce the cost of LED drivings；Because from efficiently suitable purple light, blue light wavelength chip and suitable fluorescent material, the electricity conversion of system is high；Help the effect of plant growth good.
Description
Technical field
The application technical field of LED illumination, more particularly to a kind of plant illumination light source and its plant is irradiated
Method.
Background technology
Just the energy of all life is originated on the earth, is one of most important factor that world all living things are depended on for existence,
Origin of life and too busy to get away light of evolving, biological structure will also be influenceed with function by the strong of light.The life of green plants
Length needs sunlight, and this, which is primarily due to them, needs to carry out photosynthesis, to provide nutriment required for own growth etc..Plant
Physiological Study result shows that the 90% of crops dry matter weight derives from photosynthesis, influence of the reflection light extraction to crop yield
It is most important.The spectrum of sunshine is continuous, contains great spectrum width, and the chlorophyll of green plants is to need to absorb wherein
Sub-fraction, and influence of the light radiation to plant growth and composition of different intensity of illumination and different wave lengths also differ.
The abosrption spectrogram of the plant chlorophyll measured according to botanists, absorption of the chlorophyll to sunshine is concentrated mainly on visible
Near the 660nm of light or so feux rouges, 460nm or so blue light and 400 or so purple light, the increase of red light irradiation amount can suppress
The generation of plant lateral roots and the sugar content for improving crop, increase blue light can suppress the elongation of petiole and increase the protein of crop
Content, green glow has the characteristics of low photosynthesis and weak formation are acted on etc..The growth of crops is not only by environment such as temperature, humidity
The influence of factor, will also be influenceed by solar radiation.In order to promote the photosynthesis of plant, manual simulation's plant optimum growh
Photoenvironment carries out light filling irradiation to plant there is provided the illumination that spectral coverage is absorbed required for plant chlorophyll, improves the light of crops
According to condition, plant is also carried out good photosynthesis in night or cloudy day, be allowed to be in optimum growh state, shorten
Maturation, it is significant to development high technological aqriculture.
The light source of common LED plant illumination light fixtures is the demand according to plant growth to spectrum segment and option and installment phase
Answer the LED chips of wave band.Hobby illumination wavelength required for different plant growths is different, it is therefore desirable to match somebody with somebody to specified plant
The LED chips " set meal " required for it are put, the LED chip species required by this method is more, or even some specific wavelengths
LED chips need be customized according to different wavelength demands, according to this by adjusting LED chips species and phase interworking
Than and the method that adjusts LED light fixture spectral power distributions necessarily causes pole in the increase and application process of light fixture production cost
Big inconvenience.
The content of the invention
It is an object of the invention to provide a kind of plant illumination light source and its method being irradiated to plant, to overcome
Deficiency of the prior art.
To achieve the above object, the present invention provides following technical scheme：
The embodiment of the present application discloses a kind of plant illumination light source, including：
First light source, first light source includes the first luminescence chip group and is packaged in outside first luminescence chip group
The red fluorescence powder on surface, first luminescence chip group is by a purple light chip, a blue chip and a bluish-green optical chip string
Connection is formed, in first light source, and the luminous power ratio of the first luminescence chip group and red fluorescence powder is（1.6~2.4）:1；
Secondary light source, the secondary light source includes the second luminescence chip group and is packaged in outside second luminescence chip group
The red fluorescence powder on surface, second luminescence chip group is by a purple light chip, a blue chip and a bluish-green optical chip string
Connection is formed, in the secondary light source, and the luminous power ratio of the second luminescence chip group and red fluorescence powder is 1:（4.8~7.2）.
It is preferred that, in above-mentioned plant illumination light source, in first light source and secondary light source, the purple light chip swashs
Launch wavelength after hair is 423 ~ 443nm, and the launch wavelength after the blue chip is excited is 455 ~ 465nm, the blue green light
Launch wavelength after chip is excited is 480 ~ 500nm, and the launch wavelength after the red fluorescence powder is excited is 600 ~ 780nm.
It is preferred that, in above-mentioned plant illumination light source, the launch wavelength after the purple light chip is excited is 440nm, institute
The launch wavelength after blue chip is excited is stated for 465nm, the launch wavelength after the bluish-green optical chip is excited is 485nm.
It is preferred that, in above-mentioned plant illumination light source, the luminous power of first luminescence chip group and red fluorescence powder
Ratio is 2:1, the luminous power ratio of second luminescence chip group and red fluorescence powder is 1:6.
Correspondingly, the embodiment of the present application also discloses a kind of method that plant illumination light source is irradiated to plant, according to
The luminous power ratio of the illumination of spectral coverage, the first light source of adjustment and secondary light source is absorbed required for plant difference stage of growth chlorophyll
Irradiation is combined to plant to export corresponding spectral coverage.
It is preferred that, in the method that above-mentioned plant illumination light source is irradiated to plant, in the plant germination stage and
Before blooming, the luminous power ratio of first light source and secondary light source is 2:1.
It is preferred that, in the method that above-mentioned plant illumination light source is irradiated to plant, in plant germination stage, every 24
The irradiation time that first light source described in hour and secondary light source are combined is 12 ~ 18 hours, by second before combination irradiation starts
Light source individually irradiates 15 to 30 minutes sunrise scenes to simulate nature morning, after the completion of combination irradiation, by the second light
15 to 30 minutes situations to simulate dusk sunset are individually irradiated in source, and other times are night's rest.
It is preferred that, in the method that above-mentioned plant illumination light source is irradiated to plant, in plant germination to blooming it
Before, the irradiation time of the first light source described in every 24 hours and secondary light source combination is 12 ~ 18 hours, before combination irradiation starts
15 to 30 minutes sunrise scenes to simulate nature morning are individually irradiated by secondary light source, after the completion of combination irradiation, by
Secondary light source individually irradiates 15 to 30 minutes situations to simulate dusk sunset, and other times are night's rest.
It is preferred that, it is described in the flowering of plant stage in the method that above-mentioned plant illumination light source is irradiated to plant
The luminous power ratio of first light source and secondary light source is 1:2.
It is preferred that, in the method that above-mentioned plant illumination light source is irradiated to plant, in flowering of plant stage, every 24
The time of the first light source and secondary light source combination irradiation is 12 ~ 18 hours described in hour, by second before combination irradiation starts
Light source individually irradiates 20 to 30 minutes sunrise scenes to simulate nature morning, after the completion of combination irradiation, by the second light
20 to 30 minutes situations to simulate dusk sunset are individually irradiated in source, and other times are night's rest.
Compared with prior art, the advantage of the invention is that：In the present invention, it is only necessary to which two kinds of different illuminators just can be with
Meet the illumination needs in plant growth complete period.Further, since reduce the species of LED component and use number, can be significantly
The cost of lighting source is reduced, and also simplify to the LED designs driven and reduce the cost of LED drivings.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 show the spectrogram of the first light source in the specific embodiment of the invention；
Fig. 2 show the spectrogram of secondary light source in the specific embodiment of the invention；
Fig. 3 show in the specific embodiment of the invention plant different growth phases lighting source to plant irradiation time with
And the schematic diagram of exposure intensity.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, detailed retouch is carried out to the technical scheme in the embodiment of the present invention
State, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Plant illumination light source is included in two kinds of light sources, respectively the first light source and secondary light source, the present embodiment, passes through first
The combination of light source and secondary light source is to export the illumination of different spectral coverages, so as to meet chlorophyll in different growth phases to difference
The demand of spectral coverage illumination.
First light source includes the first luminescence chip group and is packaged in the red fluorescence powder of the first luminescence chip group outer surface.
First luminescence chip group is formed by a purple LED chip, a blue-light LED chip and a blue green light LED chip-in series.Wherein,
Launch wavelength after purple LED chip is excited is 423 ~ 443nm, preferably 440nm；Blue-light LED chip excite after transmitted wave
A length of 455 ~ 465nm, preferably 465nm；Launch wavelength after blue green light LED chip is excited is 480 ~ 500nm, is preferably
485nm；Launch wavelength after red fluorescence powder is excited is 600 ~ 780nm.In first light source, the first luminescence chip group and red are glimmering
The luminous power ratio of light powder is（1.6~2.4）:1, its ratio is preferably 2:1, it is monolithically fabricated a ultraviolet light.
Spectrogram after first light source activation please join shown in Fig. 1, wherein, the launch wavelength of purple LED chip is 440nm,
The launch wavelength of blue-light LED chip is 465nm, and the launch wavelength of blue green light LED chip is 485nm, the first luminescence chip group with
The power ratio of red fluorescence powder is 2:1.
Secondary light source includes the second luminescence chip group and is packaged in the red fluorescence powder of the second luminescence chip group outer surface.
Second luminescence chip group is formed by a purple LED chip, a blue-light LED chip and a blue green light LED chip-in series.Wherein,
Launch wavelength after purple LED chip is excited is 423 ~ 443nm, preferably 440nm；Blue-light LED chip excite after transmitted wave
A length of 455 ~ 465nm, preferably 465nm；Launch wavelength after blue green light LED chip is excited is 480 ~ 500nm, is preferably
485nm；Launch wavelength after red fluorescence powder is excited is 600 ~ 780nm.In secondary light source, the second luminescence chip group and red are glimmering
The luminous power ratio of light powder is 1:（4.8~7.2）, its ratio is preferably 1:6, it is monolithically fabricated a powder light lamp.
Spectrogram after secondary light source is excited please join shown in Fig. 2, wherein, the launch wavelength of purple LED chip is 440nm,
The launch wavelength of blue-light LED chip is 465nm, and the launch wavelength of blue green light LED chip is 485nm, the second luminescence chip group with
The power ratio of red fluorescence powder is 1:6.
Join shown in Fig. 3, the illumination of spectral coverage is absorbed according to required for the different stage of growth chlorophyll of plant, the first light source is adjusted
Irradiation is combined to plant to export corresponding spectral coverage with the luminous power ratio of secondary light source.
Development stage, daily（24 hours）In irradiation 12 ~ 18 is combined to plant by the first light source and secondary light source
Hour, specific irradiation time is adjusted with seasonal variations.Before combination irradiation starts 15 to 30 points are individually irradiated by secondary light source
Sunrise scene of the clock to simulate nature morning, after the completion of combination irradiation, is individually irradiated 15 to 30 minutes by secondary light source
Situation to simulate dusk sunset, other times are night's rest.When first light source and secondary light source are combined irradiation, the
The luminous power ratio of one light source and secondary light source is 2:1.Secondary light source is when being combined irradiation and individually irradiating, its light work(
Rate remains unchanged.
Before blooming, daily（24 hours）In irradiation 12 ~ 18 is combined to plant by the first light source and secondary light source
Hour, specific irradiation time is adjusted with seasonal variations.Before combination irradiation starts 15 to 30 points are individually irradiated by secondary light source
Sunrise scene of the clock to simulate nature morning, after the completion of combination irradiation, is individually irradiated 15 to 30 minutes by secondary light source
Situation to simulate dusk sunset, other times are night's rest.When first light source and secondary light source are combined irradiation, the
The luminous power ratio of one light source and secondary light source is 2:1.Secondary light source is when being combined irradiation and individually irradiating, its light work(
Rate remains unchanged.
Flowering phase, daily（24 hours）In irradiation 12 ~ 18 is combined to plant by the first light source and secondary light source
Hour, specific irradiation time is adjusted with seasonal variations.Before combination irradiation starts 20 to 30 points are individually irradiated by secondary light source
Sunrise scene of the clock to simulate nature morning, after the completion of combination irradiation, is individually irradiated 20 to 30 minutes by secondary light source
Situation to simulate dusk sunset, other times are night's rest.When first light source and secondary light source are combined irradiation, the
The luminous power ratio of one light source and secondary light source is 1:2.Secondary light source is when being combined irradiation and individually irradiation, its luminous power
Remain unchanged.
Because different growth phases need the light irradiation of different ratio during plant production, at least two kinds sides can be passed through
The ratio of (purple light+blue light+blue green light) and feux rouges in formula adjustment light source：1. adjust the amount of red fluorescence powder in LED encapsulation；2.
By the ratio for adjusting purple light+blue light+blue green light and feux rouges in the driving current of purple light, blue light, blue green light LED, adjustment light source.
Two kinds of different illuminators are only needed in the present invention can just meet the illumination needs in plant growth complete period：One
It is（Purple light+blue light+blue green light）The luminous power ratio for the light that LED is sent with red light fluorescent powder is 2 to 1（Ultraviolet light）；Another
It is（Purple light+blue light+blue green light）The luminous power ratio for the light that LED is sent with red light fluorescent powder is 1 to 6（Powder light lamp）.
Due to reducing the species of LED component and using number, it is possible to substantially reduce the cost of lighting source；And
It also simplify to the LED designs driven and reduce the cost of LED drivings；Due to from efficiently suitable purple light, blue light wavelength
Chip and suitable fluorescent material, the electricity conversion of system are high；Help the effect of plant growth good.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Described above is only the embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (10)
1. a kind of plant illumination light source, it is characterised in that including：
First light source, first light source includes the first luminescence chip group and is packaged in the first luminescence chip group outer surface
Red fluorescence powder, first luminescence chip group by a purple light chip, a blue chip and a blue green light chip-in series and
Into in first light source, the luminous power ratio of the first luminescence chip group and red fluorescence powder is 1.6：1~2.4:1；
Secondary light source, the secondary light source includes the second luminescence chip group and is packaged in the second luminescence chip group outer surface
Red fluorescence powder, second luminescence chip group by a purple light chip, a blue chip and a blue green light chip-in series and
Into in the secondary light source, the luminous power ratio of the second luminescence chip group and red fluorescence powder is 1:4.8~1：7.2.
2. plant illumination light source according to claim 1, it is characterised in that：In first light source and secondary light source, institute
The launch wavelength after purple light chip is excited is stated for 423~443nm, the blue chip excite after launch wavelength for 455~
465nm, the bluish-green optical chip excite after launch wavelength be 480~500nm, the red fluorescence powder excite after transmitted wave
A length of 600~780nm.
3. plant illumination light source according to claim 2, it is characterised in that：The purple light chip excite after launch wavelength
For 440nm, the launch wavelength after the blue chip is excited is 465nm, and the launch wavelength after the bluish-green optical chip is excited is
485nm。
4. plant illumination light source according to claim 1, it is characterised in that：First luminescence chip group and red fluorescence
The luminous power ratio of powder is 2:1, the luminous power ratio of second luminescence chip group and red fluorescence powder is 1:6.
5. the method being irradiated using any described plant illumination light source of Claims 1-4 4 to plant, it is characterised in that
The luminous power of the illumination of spectral coverage, the first light source of adjustment and secondary light source is absorbed according to required for the different stage of growth chlorophyll of plant
Ratio is combined irradiation to plant to export corresponding spectral coverage.
6. the method that plant illumination light source according to claim 5 is irradiated to plant, it is characterised in that：In plant hair
Bud stage and before blooming, the luminous power ratio of first light source and secondary light source is 2:1.
7. the method that plant illumination light source according to claim 6 is irradiated to plant, it is characterised in that：In plant hair
The irradiation time of bud stage, the first light source described in every 24 hours and secondary light source combination is 12~18 hours, in combination irradiation
15 to 30 minutes sunrise scenes to simulate nature morning are individually irradiated by secondary light source before starting, are completed in combination irradiation
Afterwards, 15 to 30 minutes situations to simulate dusk sunset are individually irradiated by secondary light source, other times are night's rest.
8. the method that plant illumination light source according to claim 6 is irradiated to plant, it is characterised in that：In plant hair
Bud is to before blooming, and the irradiation time of the first light source described in every 24 hours and secondary light source combination is 12~18 hours, in group
Group photo is individually irradiated 15 to 30 minutes sunrise scenes to simulate nature morning by secondary light source before penetrating beginning, is shone in combination
After the completion of penetrating, 15 to 30 minutes situations to simulate dusk sunset are individually irradiated by secondary light source, other times are stopped for night
Breath.
9. the method that plant illumination light source according to claim 5 is irradiated to plant, it is characterised in that：Opened in plant
The stage is spent, the luminous power ratio of first light source and secondary light source is 1:2.
10. the method that plant illumination light source according to claim 9 is irradiated to plant, it is characterised in that：In plant
Flowering phase, the time of the first light source and secondary light source combination irradiation described in every 24 hours is 12~18 hours, is shone in combination
20 to 30 minutes sunrise scenes to simulate nature morning are individually irradiated by secondary light source before penetrating beginning, it is complete in combination irradiation
Cheng Hou, 20 to 30 minutes situations to simulate dusk sunset is individually irradiated by secondary light source, other times are night's rest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410460468.9A CN105465677B (en) | 2014-09-11 | 2014-09-11 | A kind of plant illumination light source and its method being irradiated to plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410460468.9A CN105465677B (en) | 2014-09-11 | 2014-09-11 | A kind of plant illumination light source and its method being irradiated to plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465677A CN105465677A (en) | 2016-04-06 |
| CN105465677B true CN105465677B (en) | 2017-10-03 |
Family
ID=55603673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410460468.9A Active CN105465677B (en) | 2014-09-11 | 2014-09-11 | A kind of plant illumination light source and its method being irradiated to plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465677B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872910B (en) * | 2017-11-06 | 2023-11-28 | 深圳市铁汉一方环境科技有限公司 | Intelligent illumination system and method for plants |
| CN108022922A (en) * | 2017-11-10 | 2018-05-11 | 江苏稳润光电科技有限公司 | One kind is suitable for plant illumination LED light source |
| CN109103175A (en) * | 2018-08-17 | 2018-12-28 | 广州市巨宏光电有限公司 | A kind of imitative solar spectrum LED light source |
| CN111684946A (en) * | 2019-02-27 | 2020-09-22 | 远博科技股份有限公司 | Plant cultivation system, plant cultivation method, and lighting device |
| CN113675180B (en) * | 2021-07-30 | 2024-06-04 | 普瑞光电(厦门)股份有限公司 | Light source for plant illumination |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5473430B2 (en) * | 2008-11-14 | 2014-04-16 | 利朗 伊藤 | Lighting apparatus and lighting system using the lighting apparatus |
| JP5498904B2 (en) * | 2010-09-27 | 2014-05-21 | パナソニック株式会社 | Crop cultivation system |
| JP5173004B1 (en) * | 2011-09-14 | 2013-03-27 | シャープ株式会社 | Light emitting device for plant cultivation and method for producing the same |
| JP2013106550A (en) * | 2011-11-18 | 2013-06-06 | Sharp Corp | Lighting device for growing plant |
| US9137874B2 (en) * | 2011-12-02 | 2015-09-15 | Biological Illumination, Llc | Illumination and grow light system and associated methods |
| TWI482317B (en) * | 2012-08-31 | 2015-04-21 | Ind Tech Res Inst | Light source device for adjusting plant growth |
| KR20140036799A (en) * | 2012-09-18 | 2014-03-26 | 엘지이노텍 주식회사 | Plants illumination system for controlling balance of lighting color |
| JP2014090684A (en) * | 2012-11-01 | 2014-05-19 | Sharp Corp | Illumination device |
-
2014
- 2014-09-11 CN CN201410460468.9A patent/CN105465677B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105465677A (en) | 2016-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105465677B (en) | A kind of plant illumination light source and its method being irradiated to plant | |
| CN107047093B (en) | Gardening LED lighting fixture | |
| EP2853151B1 (en) | Method and means for acclimatizing seedlings for outdoor life | |
| US20120198762A1 (en) | Spectural specific horticulture apparatus | |
| CN108807353A (en) | Light emitting diode module for plant growth | |
| CN107872952A (en) | Irradiate the system and method for plant | |
| CN103615677A (en) | LED synchronous red-blue light panel light source used for promoting plant growth | |
| CN105246191B (en) | Control method for the LED light control device of plant illumination light source luminous intensity distribution | |
| CN102573228A (en) | Healthy LED (light-emitting diode) illuminating lamp | |
| CN103557462A (en) | Device capable of converting blue laser into flat light source for plants | |
| CN106025791A (en) | Laser radiation source plant growth device | |
| Van Bommel | Incandescent replacement lamps and health | |
| CN206036684U (en) | A LED light source for vegetation light filling | |
| CN203823537U (en) | LED lamp with square COB encapsulation and used for plant growth | |
| CN203823597U (en) | Circular COB (chip on board) encapsulated LED lamp for plant growth | |
| CN204943096U (en) | A kind of plant illumination light source and light fixture | |
| CN103947517A (en) | Indoor production method of non-heading Chinese cabbages | |
| CN206196492U (en) | The glass sunlight house of plant light compensation is carried out using selective transmission photovoltaic film | |
| CN202475835U (en) | Healthy LED illuminating lamp | |
| CN206459052U (en) | A kind of polychromatic combination LED/light source for plant illumination | |
| CN103560397B (en) | A kind of red indigo plant closes the preparation method of ray laser flat-plate light source | |
| CN107135827A (en) | The full spectrum plant growing light supplement lamp pearl that a kind of wide blue spectrum is excited | |
| CN206093633U (en) | Combined type electric light source vegetation lamps and lanterns | |
| CN206112841U (en) | Quantum dot LED vegetation light | |
| CN106195664A (en) | A kind of LED light source for supplementary lighting for plant growing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |