CN108633534A - A kind of the sunlight volume holographic optical splitter and light-dimming method of plant factor - Google Patents
A kind of the sunlight volume holographic optical splitter and light-dimming method of plant factor Download PDFInfo
- Publication number
- CN108633534A CN108633534A CN201810559490.7A CN201810559490A CN108633534A CN 108633534 A CN108633534 A CN 108633534A CN 201810559490 A CN201810559490 A CN 201810559490A CN 108633534 A CN108633534 A CN 108633534A
- Authority
- CN
- China
- Prior art keywords
- volume holographic
- splitter
- light
- sunlight
- feux rouges
- 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.)
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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
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1086—Beam splitting or combining systems operating by diffraction only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
A kind of sunlight volume holographic optical splitter of plant factor of the present invention, including volume holographic beam-splitter and barn door, the volume holographic structure for diffraction sunlight is equipped in volume holographic beam-splitter, barn door is set to the side of volume holographic beam-splitter, the barn door feux rouges that diffraction goes out after volume holographic beam-splitter is sunlighted assembles position and is equipped with feux rouges scatter plate, and the barn door blue light that diffraction goes out after volume holographic beam-splitter is sunlighted assembles position and is equipped with blue light scatter plate.Volume holographic beam-splitter have selection sunlight in different colours light by ratio, sunlight separates the feux rouges and blue light of special ratios by the diffraction of volume holographic beam-splitter, feux rouges scatter plate and blue light scatter plate respectively scatter feux rouges and blue light to irradiate plant, barn door is equipped with light blocking material, for preventing other light except feux rouges and blue light from passing through.
Description
Technical field
The present invention relates to plant factor field, more particularly, to be that a kind of realize realizes feux rouges and blue light using volume holographic
The sunlight volume holographic optical splitter and light-dimming method of specific proportioning.
Background technology
As increasing for China human mortality is improved with urbanization, China faces shortage of land resource and land pollution etc. in recent years
A series of problems, plant factor are the effective means solved these problems.Compared with traditional planting patterns, plant factor can save
About 90% or more water consumption, 90% or more chemical fertilizer；Due to not spraying insecticide, the safety of food ensure that.It can be more indoors
Layer cultivation, saves large amount of land resources, and can be built in down town, saves transportation cost, and additionally aiding improves city
The air quality in city.
But the development of existing plant factor is still limited by many factors.Wherein, most important factor is exactly to plant
Object factory allows plant to carry out photosynthesis by artificially lighting mode, has very high energy consumption, and cost is caused to increase, promote
It is difficult.In addition, the red blue light light intensity ratio of plant factor is fixed at present, and it is practical for the red blue light light intensity needed for different plants
Ratio is different, and it is for best growth conditions to lead to the plant in plant factor not.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide sunlight or white light can be divided into certain red blue light
The sunlight volume holographic optical splitter and light-dimming method of a kind of plant factor of light intensity ratio.
To achieve the above object, technical solution of the invention is：A kind of sunlight volume holographic light splitting of plant factor
Device, including volume holographic beam-splitter and barn door, the interior volume holographic structure being equipped with for diffraction sunlight of volume holographic beam-splitter, shading
Plate is set to the side of volume holographic beam-splitter, and the barn door feux rouges that diffraction goes out after volume holographic beam-splitter is sunlighted assembles position
Feux rouges scatter plate is installed, the barn door blue light that diffraction goes out after volume holographic beam-splitter is sunlighted assembles position and is equipped with indigo plant
Light diffuser plate.Volume holographic beam-splitter have different colours light in selection sunlight by ratio, sunlight is by volume holographic point
The diffraction of tabula rasa separates the feux rouges and blue light of special ratios, and feux rouges scatter plate and blue light scatter plate respectively scatter feux rouges and blue light
Irradiate plant, barn door is equipped with light blocking material, for preventing other light for removing feux rouges and blue light from passing through.For plant work
Factory, proportioning is 4 in general red blue light by force:1, by selecting volume holographic beam-splitter, the volume hologram that may make to feux rouges and
The diffraction efficiency ratio of blue light is 4:1.
Preferably, volume holographic structure is generated by red parallel laser and red divergencing laser interference.Plant factor generally needs
The feux rouges wanted is more than blue light, generally in the light intensity ratio of the light intensity of feux rouges and blue light in 1.5-9, by red parallel laser with it is red
The volume holographic structure that the interference of color divergencing laser generates, can make feux rouges obtain high diffraction efficiency.
Preferably, the thickness of volume holographic beam-splitter is 31 μm, and it is 6 ° that volume holographic structure, which is 630nm, angle by wavelength,
A branch of red parallel laser and a branch of red divergencing laser are interfered.Volume hologram may be implemented to feux rouges and blue light in the program
Diffraction efficiency ratio be 4:1.
Preferably, further include sunlight light collecting device, guiding device, guiding device includes light inputting end and light extraction end, leaded light
The light inputting end of device connects solar concentrating device, and guiding device is used for the sunlight that transfer sun light light collecting device is collected, leads
The light extraction end of electro-optical device is set to the other side of volume holographic beam-splitter.First sunlight concentration is divided by volume holographic beam-splitter again
Light, it is possible to reduce the volume of follow-up light splitting and scattering device.
Preferably, convex lens is equipped between volume holographic beam-splitter and barn door.The diffraction area for reducing feux rouges and blue light, subtracts
The volume of few single unit system.
A kind of light-dimming method of the sunlight volume holographic optical splitter of plant factor, includes the following steps：
（1）Volume holographic beam-splitter is set to the diffraction efficiency of light as η, volume holographic beam-splitter is to the diffraction efficiency of feux rouges and to blue light
Diffraction efficiency ratio be X；
（2）With wavelength it is the volume holographic material of a branch of red parallel laser vertical irradiation thickness d of λ 1, while is with wavelength
A branch of red divergencing laser incidence holographic material internal interference that the angle of λ 1 and red parallel laser is 2 θ generates volume holographic knot
Structure, θ are Bragg angle, by formula 1. -5. determine and meet the d and θ that the red ratios with η indigo plant of η are X, the η red η for feux rouges, η indigo plants
For the η of blue light, formula 1.-be 5.：
①
②
③
④
⑤；
The λ of wherein feux rouges is 610-720nm, the λ of blue light is 400-520nm, and n is the refractive index of volume holographic material, and n1 is that body is complete
The index modulation of material is ceased, n and n1 are determined by the property of material, generally fixed value；The λ of feux rouges is preferably 630nm, blue
The λ of light is preferably 450nm；Only it need to can realize that volume holographic beam-splitter has different feux rouges by changing thickness d and angle, θ
With the diffraction efficiency of blue light,
（3）Volume holographic material is fabricated to volume holographic beam-splitter shape to be packed into the sunlight volume holographic optical splitter of plant factor.
Preferably, X 1.5-9 are preferably 4.
Preferably, λ 1 is 610-720nm, is preferably 630nm.
Preferably, volume holographic material is one or more of acrylamide photopolymer, dichromated gelatin.
By using above-mentioned technical solution, the beneficial effects of the invention are as follows：Volume holographic beam-splitter has selection sunlight
Middle different colours light by ratio, sunlight separates the feux rouges and blue light of special ratios by the diffraction of volume holographic beam-splitter,
Feux rouges scatter plate and blue light scatter plate respectively scatter feux rouges and blue light to irradiate plant, and barn door is equipped with light blocking material, uses
Pass through in preventing other light except feux rouges and blue light.Using holographic technique manufacture micro-structure hologram diffraction figure, have high efficiency,
Lightness, micromation, array and integrated, reproducible, cheap characteristic.Sunlight is imported to indoor, recycling body
Holographic beam-splitter is divided into the diffraction light that specific red blue light matches by force, can not only extract the light wave that plant needs most, also
Reduce the consumption of electric energy.The configuration of the present invention is simple is easily changed, and different plants may be implemented by replacing volume holographic beam-splitter
The red blue light needed matches by force, is conducive to the growth of plant, to improve capacity usage ratio, reduces cost.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Main appended drawing reference explanation：
Volume holographic beam-splitter 1；Barn door 2；Feux rouges scatter plate 3；Blue light scatter plate 4；Sunlight 5.
Specific implementation mode
It is further illustrated the present invention below in conjunction with the drawings and specific embodiments.
Embodiment one：
As shown in Figure 1, a kind of sunlight volume holographic optical splitter of plant factor of the present invention, including volume holographic beam-splitter 1 and shading
Plate 2, the interior volume holographic structure being equipped with for diffraction sunlight of volume holographic beam-splitter 1, volume holographic structure is by red laser and red
Divergencing laser interference generates, and the thickness of volume holographic beam-splitter is 31 μm, and volume holographic structure by wavelength is 630nm, angle is 6 ° red
Color parallel laser and red divergencing laser interference generate.Barn door 2 is set to the side of volume holographic beam-splitter 1, and barn door 2 is complete in body
Breath beam-splitter is sunlighted the feux rouges aggregation position that rear diffraction goes out and is equipped with feux rouges scatter plate, and barn door is in volume holographic beam-splitter
It is sunlighted the blue light aggregation position that rear diffraction goes out and is equipped with blue light scatter plate.
Sunlight 5 irradiates the other side of volume holographic beam-splitter 1, and the volume holographic structure plan in volume holographic beam-splitter 1 will too
Sunlight diffraction is divided, and feux rouges scatter plate is scattered the feux rouges separated, and blue light scatter plate is scattered the blue light separated.
Embodiment two：
A kind of sunlight volume holographic optical splitter of plant factor of the present invention, including volume holographic beam-splitter 1 and barn door 2 further include
Sunlight light collecting device, guiding device, the interior volume holographic structure being equipped with for diffraction sunlight of volume holographic beam-splitter 1, barn door 2
Set on the side of volume holographic beam-splitter 1, the feux rouges that diffraction goes out after volume holographic beam-splitter is sunlighted of barn door 2 assembles position
Feux rouges scatter plate is installed, the barn door blue light that diffraction goes out after volume holographic beam-splitter is sunlighted assembles position and is equipped with indigo plant
Light diffuser plate.Guiding device includes light inputting end and light extraction end, and the light inputting end of guiding device connects solar concentrating device, leaded light dress
The sunlight collected for transfer sun light light collecting device is set, the light extraction end of guiding device is set to the another of volume holographic beam-splitter
Side.
Embodiment three：
A kind of light-dimming method of the sunlight volume holographic optical splitter of plant factor, includes the following steps：
（1）Volume holographic beam-splitter is set to the diffraction efficiency of light as η, volume holographic beam-splitter is to the diffraction efficiency of feux rouges and to blue light
Diffraction efficiency ratio be X；X is 1.5-9.
（2）With wavelength it is the volume holographic material of a branch of red parallel laser vertical irradiation thickness d of λ 1, while uses wavelength
It is λ 1, a branch of red divergencing laser incidence holographic material internal interference for being 2 θ with the angle of red parallel laser generates volume holographic
Structure, θ are Bragg angle, and λ 1 is 630nm, and volume holographic material is acrylamide photopolymer, or bichromate is bright
Glue.Sunlight and red laser generate volume holographic structure in holographic material, by formula 1. -5. determine that meet η red blue with η
Ratio be X d and θ, formula 1.-be 5.：
①
②
③
④
⑤；
The λ of wherein feux rouges is 610-720nm, the λ of blue light is 400-520nm, and n is the refractive index of volume holographic material, and n1 is that body is complete
Cease the index modulation of material；
（3）Volume holographic material is fabricated to volume holographic beam-splitter shape to be packed into the sunlight volume holographic optical splitter of plant factor.
Above-described, only presently preferred embodiments of the present invention cannot limit the range of this practicality implementation, it is every according to
Equivalent change made by scope of the present invention patent and decoration should all be still fallen in the range of the present invention covers.
Claims (8)
1. a kind of sunlight volume holographic optical splitter of plant factor, it is characterised in that：Including volume holographic beam-splitter and barn door, body
The volume holographic structure for diffraction sunlight is equipped in holographic beam-splitter, barn door is set to the side of volume holographic beam-splitter, shading
The plate feux rouges that diffraction goes out after volume holographic beam-splitter is sunlighted assembles position and is equipped with feux rouges scatter plate, and barn door is complete in body
Breath beam-splitter is sunlighted the blue light aggregation position that rear diffraction goes out and is equipped with blue light scatter plate.
2. a kind of sunlight volume holographic optical splitter of plant factor according to claim 1, it is characterised in that：Volume holographic knot
Structure is generated by red parallel laser and red divergencing laser interference.
3. a kind of sunlight volume holographic optical splitter of plant factor according to claim 1, it is characterised in that：Volume holographic point
The thickness of tabula rasa is 31 μm, and volume holographic structure by wavelength is a branch of red parallel laser that 630nm, angle are 6 ° and a branch of red
Color divergencing laser is interfered.
4. a kind of sunlight volume holographic optical splitter of plant factor according to claim 1, it is characterised in that：Further include too
Sunlight light collecting device, guiding device, guiding device include light inputting end and light extraction end, and the light inputting end of guiding device connects solar energy collection
Electro-optical device, guiding device are used for the sunlight that transfer sun light light collecting device is collected, and the light extraction end of guiding device is set to volume holographic
The other side of beam-splitter.
5. a kind of a kind of light-dimming method of the sunlight volume holographic optical splitter of plant factor of claim 1-4 any one of them,
Include the following steps：
（1）Volume holographic beam-splitter is set to the diffraction efficiency of light as η, volume holographic beam-splitter is to the diffraction efficiency of feux rouges and to blue light
Diffraction efficiency ratio be X；
（2）With wavelength it is the volume holographic material of a branch of red parallel laser vertical irradiation thickness d of λ 1, while is with wavelength
A branch of red divergencing laser incidence holographic material internal interference that the angle of λ 1 and red parallel laser is 2 θ generates volume holographic knot
Structure, by formula 1. -5. determine the d and θ that meet the red ratios with η indigo plant of η for X, formula 1.-be 5.：
①
②
③
④
⑤；
The λ of wherein feux rouges is 610-720nm, the λ of blue light is 400-520nm, and n is the refractive index of volume holographic material, and n1 is that body is complete
Cease the index modulation of material；
（3）Volume holographic material is fabricated to volume holographic beam-splitter shape to be packed into the sunlight volume holographic optical splitter of plant factor.
6. a kind of light-dimming method of the sunlight volume holographic optical splitter of plant factor according to claim 5, feature exist
In：X is 1.5-9.
7. a kind of light-dimming method of the sunlight volume holographic optical splitter of plant factor according to claim 5, feature exist
In：λ 1 is 630nm.
8. a kind of light-dimming method of the sunlight volume holographic optical splitter of plant factor according to claim 5, feature exist
In：Volume holographic material is one or more of acrylamide photopolymer, dichromated gelatin.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654750A (en) * | 2018-12-28 | 2019-04-19 | 清华大学深圳研究生院 | A kind of alternating expression solar concentrating system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101283453A (en) * | 2005-10-12 | 2008-10-08 | 住友电气工业株式会社 | Solid imaging device and production method thereof |
| CN104663266A (en) * | 2015-02-26 | 2015-06-03 | 中国科学技术大学先进技术研究院 | Sunlight comprehensive utilization system of plant factory |
| CN106461956A (en) * | 2014-02-18 | 2017-02-22 | 科思创德国股份有限公司 | Autostereoscopic 3D display device using holographic optical elements |
| CN206314302U (en) * | 2016-11-04 | 2017-07-11 | 武汉烽火富华电气有限责任公司 | Agricultural greenhouse refractive divides concentration photovoltaic system and agricultural greenhouse |
| CN107608015A (en) * | 2017-11-10 | 2018-01-19 | 东北师范大学 | A kind of method and system for obtaining stability and high efficiency X-ray fluorescence holography grating |
| CN208691810U (en) * | 2018-06-02 | 2019-04-05 | 福建农建发展有限公司 | A kind of sunlight volume holographic optical splitter of plant factor |
-
2018
- 2018-06-02 CN CN201810559490.7A patent/CN108633534A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101283453A (en) * | 2005-10-12 | 2008-10-08 | 住友电气工业株式会社 | Solid imaging device and production method thereof |
| CN106461956A (en) * | 2014-02-18 | 2017-02-22 | 科思创德国股份有限公司 | Autostereoscopic 3D display device using holographic optical elements |
| CN104663266A (en) * | 2015-02-26 | 2015-06-03 | 中国科学技术大学先进技术研究院 | Sunlight comprehensive utilization system of plant factory |
| CN206314302U (en) * | 2016-11-04 | 2017-07-11 | 武汉烽火富华电气有限责任公司 | Agricultural greenhouse refractive divides concentration photovoltaic system and agricultural greenhouse |
| CN107608015A (en) * | 2017-11-10 | 2018-01-19 | 东北师范大学 | A kind of method and system for obtaining stability and high efficiency X-ray fluorescence holography grating |
| CN208691810U (en) * | 2018-06-02 | 2019-04-05 | 福建农建发展有限公司 | A kind of sunlight volume holographic optical splitter of plant factor |
Non-Patent Citations (4)
| Title |
|---|
| 何兴道, 龚勇清, 王庆, 赵希圣: "反射式双峰值全息滤光片的研制", 光子学报, no. 01 * |
| 刘彤;刘雯;马建设;: "可调红蓝光子比例的LED植物光源配光设计方法", 农业工程学报, no. 01 * |
| 郑继红, 陈刚, 顾玲娟, 裘颖刚, 庄松林: "影响聚合物分散液晶体全息光栅衍射效率因素的分析", 中国激光, no. 06, pages 524 - 528 * |
| 陈占林;熊玉卿;: "双光束全息干涉法制备二维光子晶体的理论分析", 人工晶体学报, no. 01 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654750A (en) * | 2018-12-28 | 2019-04-19 | 清华大学深圳研究生院 | A kind of alternating expression solar concentrating system |
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