CN103236462A - Efficient solar energy fluorescence condenser - Google Patents

Efficient solar energy fluorescence condenser Download PDF

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Publication number
CN103236462A
CN103236462A CN2013101109454A CN201310110945A CN103236462A CN 103236462 A CN103236462 A CN 103236462A CN 2013101109454 A CN2013101109454 A CN 2013101109454A CN 201310110945 A CN201310110945 A CN 201310110945A CN 103236462 A CN103236462 A CN 103236462A
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China
Prior art keywords
fluorescence
optical waveguide
flat optical
solar energy
solar
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CN2013101109454A
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Chinese (zh)
Inventor
串禾
孙训江
王小艳
冯薪谕
杨理贵
张颜梅
刘巍
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Chongqing University
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Chongqing University
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    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

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Abstract

The invention relates to an efficient solar energy fluorescence condenser, and relates to the solar energy condenser field. A selected reflecting layer and high-reflected films are arranged on the upper portion and the lower portion of a fluorescence planar optical waveguide to form a two-stage fluorescence collecting structure, so that a solar collector is enabled to be light and thin in structure and flexible to mount and has high fluorescence collecting efficiency. The efficient solar energy fluorescence condenser mainly comprises a glass cover plate, the fluorescence planar optical waveguide, a base plate, a side edge stopper and a side edge opening. The efficient solar energy fluorescence condenser is characterized in that the selected reflecting layer is arranged on the lower surface of the glass cover plate, the high-reflected films are arranged on the upper surface of the base plate and the inner surface of the side edge stopper, air films are arranged between the fluorescence planar optical waveguide and the glass cover plate and between the fluorescence planar optical waveguide and the base plate, and the side edge opening is reserved on the side edge stopper. The efficient solar energy fluorescence condenser can be a substitute product of traditional solar collectors, and can be applied to solar heating (hot water) systems, solar photovoltaic power generation systems and other solar energy systems.

Description

A kind of high-efficiency solar fluorescence concentrator
Technical field
The present invention relates to the solar concentrator field, particularly relate to a kind of high-efficiency solar fluorescence concentrator that utilizes fluorescent material to make, especially sunlight is had the solar energy fluorescence concentrator of collecting and converting infrared function to.
Background technology
Along with the propelling of energy-saving and emission-reduction strategy, China is going into overdrive to develop various regenerative resources.In various regenerative resources, solar energy becomes the object of focus development with characteristics such as it are widely distributed, inexhaustible, nexhaustible, pollution-free, cost is low.
Aspect solar energy collecting, modes such as Salar light-gathering, solar energy heating or both combinations are arranged.Salar light-gathering mainly is used on the photovoltaic generating system; Solar energy heating is the basis of solar energy heat utilization, is extensively applied in the systems such as solar light-heat power-generation, solar heating and hot water.
On the one hand, on existing solar heating and hot-water heating system, solar energy collecting is mainly taked flat-plate solar collector or vacuum tube collector, utilize heating agent (water or anti-icing fluid) that the solar energy that shines on the heat collector is collected heat storage water tank with the heat energy form, be used further to heating or hot-water supply.Wherein, vacuum tube collector is that China is most widely used, nearly occupation rate of market most probably, and in China rural area, widely used solar water heater substantially all is electron tubes type.Existing solar collector generally all can only be installed in building top, can't utilize the sunlight that is radiated on the large tracts of land metope, and install take up room big, can not be combined with building well, do not reach modern people's requirement at architectural aesthetic.In addition, the mode that adopts heating agent to collect solar energy as carrier also has its more unavoidable shortcomings, comprises the big and power consumption of bursting by freezing, fluid seepage, the power section noise of heat collector and pipeline etc.
On the other hand, be used for the fluorescent flat optical waveguide of photovoltaic generating system, utilize the total reflection principle of fluorescence in waveguide to carry out optically focused.The theoretical phosphor collection efficient of existing fluorescent flat optical waveguide photovoltaic module only is 75%, lower phosphor collection efficiency limitations, among others its whole efficiency of energy collection.
Chinese patent (application number is 201010253840.0) " a kind of solar energy vacuum tube heat collector " proposes to be provided with fin in vacuum tube, and the U-shaped pipe of heat transfer medium passes fin and is located in the vacuum tube in the middle of being provided with, its advantage is to have improved the photo-thermal transformation efficiency, reduces system cost.But its weak point is vacuum tube and adopts full glass material, phenomenons such as bursting by freezing take place easily.
Chinese patent (application number is 200810194449.0) " fluorescent flat optical waveguide solar cell photovoltaic power generation system " proposes to arrange in the fluorescent flat optical waveguide side technical scheme of solar cell, this scheme advantage is to save the solar cell consumption, reduce system cost, its weak point is that the phosphor collection efficient of fluorescent flat optical waveguide is 0.75 for the 75%(numerical aperture only), limited the whole efficiency of system.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes existing heat collector and fluorescence concentrator photovoltaic module, for solar heating and hot-water heating system and fluorescence concentrator photovoltaic module provide a kind of solar energy fluorescence concentrator, thereby take full advantage of the sunlight of metope and do not have the danger of bursting by freezing and fluid seepage fully.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of high-efficiency solar fluorescence concentrator mainly comprises glass cover-plate, selective reflecting layer, fluorescent flat optical waveguide, high reflective film, base plate, side baffle plate and side openings.At the glass cover-plate lower surface selective reflecting layer is set; Be provided with high reflective film at plate upper surface and side baffle inner surface; All leave thin layer of air between fluorescent flat optical waveguide and the glass cover-plate and between fluorescent flat optical waveguide and the base plate; Leave side openings at the side baffle plate, be used for deriving or utilizing the solar energy of collecting.
Operation principle of the present invention is: sunlight passes through glass cover-plate, selective reflecting layer, goes up thin layer of air arrival fluorescent flat optical waveguide, is absorbed by the fluorescent material in the fluorescent flat optical waveguide, referring to Fig. 1.Fluorescent material is to the long infrared light of spatial emission wavelength, a part light since incidence angle greater than the cirtical angle of total reflection (seeing L1 among Fig. 1), total reflection takes place in fluorescent flat optical waveguide, is transmitting the arrival side openings through repeatedly the reflection back is final, thereby is being exported or utilizes; And for the light (see in Fig. 1 L2) of another part less than critical angle, be selected in sexual reflex layer and the high reflective film reflected back fluorescent flat optical waveguide in the back, upper and lower surface that sees through fluorescent flat optical waveguide, in like manner finally also can arrive side openings.In the present invention, fluorescent flat optical waveguide, last air gap, following air gap, selective reflecting layer and the common formation of high reflective film have the optical waveguide structure of two-stage fluorescence transfer function.So, this structure plays transmission, converges the effect of luminous energy.
Under the isotropic hypothesis of fluorescence, this structure is to the collection efficiency n of fluorescence tEqual the representative fraction sum that above-mentioned two parts luminous energy accounts for total emitting fluorescence.First is the ratio n that the solid angle that enters the total reflection pattern accounts for whole spaces T1Referring to Fig. 2, notice of invitation side escape light cone solid angle
Ω＝2π(1-cosθ c)
Wherein, θ cBe the cirtical angle of total reflection, θ c=arcsin (1/n 1), n 1Be the refractive index of transparent dielectric layer in the fluorescent flat optical waveguide:
n t 1 = 1 - 2 * 2 π ( 2 - cos θ c ) 4 π = cos θ c = 1 - 1 n 1 2
To most of macromolecular material and glass, n 1≈ 1.5, try to achieve n according to following formula T1≈ 0.75.
Accordingly, can get and do not enter total reflection pattern luminous energy and account for total luminous energy mark n t'=1-n T1≈ 0.25.
Do not enter in the fluorescence of total reflection pattern, be divided into two parts again, portion arrives selective reflecting layer by last air gap, is reflected back by it, and another part arrives high reflective film by following air gap, in like manner is reflected back.Second portion so as can be known:
n t 2 = 1 2 n 2 ′ r + 1 2 n t ′ R ≈ 0.25 ( 1 2 r + 1 2 R )
In the formula: r is that the low-e film is to the reflectivity of fluorescence; R is the reflectivity of high reflective film.
By above analysis phosphor collection efficient n of the present invention as can be known tFor:
n t ≈ 0.75 + 0.25 ( 1 2 r + 1 r R )
According to existing low-e glass light spectral curve (wherein low emissivity glass one example is seen Figure 10), as can be known near infrared λ=2 μ m, reflectivity r is between 0.6 to 0.7, also can choose the higher low-e film of other suitabilities in addition, make its transmissivity to sunlight higher, centering infrared reflectivity r reaches 0.9 simultaneously.And for high reflective film, existing technology makes that its reflectivity R can be easier to surpass 0.9.
If get r=0.6, R=0.9 then n t ≈ 0.75 + 0.25 ( 1 2 * 0.6 + 1 2 * 0.9 ) ≈ 0.94
To sum up, the light that enters transmission mode among the present invention has two parts.The same fluorescent flat optical waveguide of the principle of first, namely total reflection takes place in all light outside critical light cone angle in fiber waveguide, thereby enters transmission mode, and the light of this part accounts for 75% of sum.Second portion is that light of 25% that fluorescent flat optical waveguide is escaped, and passes to be reflected back after thin layer of air upwards arrives Low-e film (or photonic crystal thin layer) or arrives high reflective film downwards.So principle makes that phosphor collection efficient of the present invention is easy to surpass 94%.
Adopt technical scheme of the present invention, have following beneficial effect:
Structure is frivolous, and is flexible for installation, can take full advantage of the sunlight of metope.The fluorescent flat optical waveguide thickness range is the 1-30 millimeter, the thickness of glass cover-plate and base plate all can be controlled in several millimeters scopes, integrally-built like this thickness can be controlled in 40 millimeters, so structure of the present invention is frivolous, can be easy to be placed in the roof or paste the exterior wall installation, have stronger Installation Flexibility than traditional heat collector, architecturally can arrange bigger collector area identical.
No bursting by freezing and fluid seepage danger.The collection of energy and transmission all are the forms with luminous energy among the present invention, do not need heating agent, and this technical scheme makes the present invention avoid bursting by freezing and the fluid seepage danger of traditional heating agent formula heat collector fully.
Phosphor collection efficient is much larger than existing fluorescent flat optical waveguide photovoltaic module, and theoretical phosphor collection efficient surpasses 94%.Existing fluorescent flat optical waveguide photovoltaic module utilizes total reflection principle to converge fluorescence, only the light outside critical light cone enters transmission mode, those light within critical light cone have then been escaped away, and its theoretical phosphor collection efficient only is 75%.
Need not ray tracing, and can collect sun scattering radiation.The present invention does not belong to the optically focused principle of geometric optics, makes the present invention to the relative angle of incident light without limits, both need not ray tracing, in like manner can collect sun scattering radiation as can be known.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is fluorescent flat optical waveguide escape light cone schematic diagram.
Fig. 3 is fluorescent flat optical waveguide platy structure schematic diagram, and wherein: 3-a is single layer structure, and 3-b and 3-c are double-decker, and 3-d is three-decker.
Fig. 4 connects the schematic diagram that fluorescence is drawn pipeline for side openings of the present invention.
Fig. 5 draws the different outlet of pipeline arrangement schematic diagram for side openings of the present invention connects fluorescence, wherein: 5-a is for exporting on triangle one side, 5-b is for exporting on rectangle one side, and 5-c is for exporting on triangle one rescinded angle, and 5-d is for exporting on rectangle one rescinded angle.
Fig. 6 is heating agent heat absorption type schematic diagram of the present invention.
Fig. 7 is that the endothermic tube of heating agent heat absorption type of the present invention is arranged schematic diagram, and wherein: 7-a is the center that endothermic tube passes through two opposite side, and 7-b is that endothermic tube passes through two diagonal angles.
Fig. 8 is photovoltaic generation structural representation of the present invention.
Fig. 9 is the different solar cell arrangements of photovoltaic generation structure of the present invention, wherein: 9-a is that solar cell is arranged on triangle one side, 9-b is that solar cell is arranged on rectangle one side, 9-c is that solar cell is arranged on triangle one rescinded angle, and 9-d is that solar cell is arranged on rectangle one rescinded angle.
Embodiment
Embodiment 1
Referring to Fig. 1, Fig. 3, Fig. 4 and Fig. 5, a kind of high-efficiency solar fluorescence concentrator comprises glass cover-plate 1, selective reflecting layer 2, fluorescent flat optical waveguide 6, high reflective film 8, base plate 9, side baffle plate 5 and side openings 4.At the glass cover-plate lower surface selective reflecting layer 2 is set; Be provided with high reflective film 8 at base plate and side baffle inner surface; Leave thin layer of air 3 and following thin layer of air 7 between fluorescent flat optical waveguide 6 and the glass cover-plate 1 and between fluorescent flat optical waveguide 6 and the base plate 9 respectively; Leave side openings 4 at side baffle plate 5, be used for deriving or utilizing the solar energy of collecting.
The making of fluorescent flat optical waveguide: fluorescent material is mixed polymethyl methacrylate (PMMA) matrix form fluorescent material layer 10, fluorescent material layer 10 can constitute single layer structure fluorescent flat optical waveguide (seeing 3-a) separately, can be glass or PMMA with transparent dielectric layer 11(material also) be combined into sandwich construction fluorescent flat optical waveguide (seeing 3-b, 3-c, 3-d).
In the present embodiment, with the wavelength of fluorescence that enters transmission mode be decided to be 1.5～3.0 μ m(near, in infrared).Selective reflecting layer 2 choose to sunlight have high permeability simultaneously near, in infrared Low-e film or layer of photonic crystals with characteristic of high reflectance.For the fluorescent material in the fluorescent flat optical waveguide 6, choose those absorption spectrums and emission spectrum and can be connected mutually and chemically stable fluorescent material, be mixed with and form, can absorb sunlight, send wavelength long near, mid-infrared light.So, the overwhelming majority in the sunlight can both enter fluorescent flat optical waveguide 6, is absorbed by fluorescent material to be converted near, mid-infrared light, and then enters transmission mode, converges to the edge.
Side baffle plate 5 and base plate 9 adopt metal material or plastic material to make, and have certain mechanical strength for making the present invention, and it is good taking metal material.High reflective film 8 materials choose this material of main consideration to the drain performance of the fluorescence that enters transmission mode, because in 400～2000nm scope, the metal waveguide that theoretical loss is lower is followed successively by Ag, Au, Cu, Al etc., so preferred Ag film is as the material of high reflective film 8.For transparent dielectric layer 11, for fitting into the wavelength of fluorescence of transmission mode, so choose near, mid-infrared light had good glass or the polymer that sees through characteristic.
Side openings 4 connects fluorescence and draws pipeline 12.At the present invention of different primary flat shapes, fluorescence is drawn pipeline 12 also different arrangements.Referring to Fig. 5, primary flat shape of the present invention can be triangle (seeing 5-a and 5-c), rectangle (seeing 5-b and 5-d) or other polygon, and fluorescence draws pipeline 12 and can be arranged in center, polygonal one side (seeing 5-a, 5-b), perhaps is arranged on the polygonal rescinded angle and (sees 5-c, 5-d).
In the present embodiment, the solar energy of collecting is transferred to fluorescence with form near, mid-infrared light and draws pipeline 12, make that the present invention is form with luminous energy to the collection of energy and transmission, do not need heating agent, this technical scheme has been avoided the drawback of the bursting by freezing of traditional heat collector low temperature and fluid seepage fully.Fluorescence is drawn pipeline 12 can guide to other places or equipment use to this infrared light according to different user demands, has occupation mode flexibly.The present invention is different from the optically focused principle of geometric optics, makes the present invention to the relative angle of incident light without limits, both need not ray tracing, in like manner can collect sun scattering radiation as can be known.Purposes is given an example: be used for indoor heating, hot water supply, culinary art or absorption refrigeration etc.
Embodiment 2
Referring to Fig. 6 and Fig. 7, on the basis of embodiment 1, do not establish side openings 4 and fluorescence and draw pipeline 12, but by arranging that heating agent endothermic tube 13 absorbs infrared light, reaches the purpose that solar energy is absorbed, stores and utilize with the heat energy form.
Heating agent endothermic tube 13 is arranged between glass cover-plate 1 and the base plate 9, is connected with the fluorescent flat optical waveguide 6 on both sides by transparent adhesive tape.The arrangement of heating agent endothermic tube 13 has two kinds: a kind ofly be and a pair of rectangle opposite side parallel (seeing 7-a), another kind is the diagonal angle (seeing 7-b) by a pair of rectangle,
Present embodiment can replace vacuum tube collector or flat-plate collector, as the solar collector of solar water (heating) system.Because it is frivolous that the present invention has structure, present embodiment can be installed in the roof, also can be installed on the exterior wall, makes present embodiment have bigger potential collector area than traditional heat collector.Simultaneously on visual effect, can the place of ceramic tiles paving, make the building atmosphere that seems, attractive in appearance equally.Aspect the utilization of resources, the huge building wall resource of modern metropolitan cities makes this example that limitless value be arranged.
Embodiment 3
Referring to Fig. 8 and Fig. 9, on the basis of embodiment 1, do not establish fluorescence and draw pipeline 12, but in side openings 4 solar cell 14 is set.In addition, take coordination principle similarly to Example 1, need carry out operation wavelength to fluorescent material, selective reflecting layer 2 and solar cell 14 and coordinate.
Specifically, in the present embodiment, enter the wavelength of fluorescence λ (being the wavelength of fluorescence of fluorescent material layer 10 emission in the fluorescent flat optical waveguide 6) of transmission mode, with the excitation wavelength of solar cell 14 (to crystal silicon solar energy battery, wavelength＜1100nm; For gallium arsenide solar cell, wavelength＜840nm; For phosphorus gallium indium solar cell, wavelength＜650nm etc.) unanimity, and selective reflecting layer 2 will choose the sunlight less than λ is had high permeability, simultaneously the fluorescence near λ had Low-e film or the layer of photonic crystals of high reflectance.
So, the cooperation of operation wavelength between selective reflecting layer 2, fluorescent material layer 10 and solar cell 14 threes, make the sunlight medium wavelength enter in the fluorescent flat optical waveguide 6 less than the light of λ, absorbed by fluorescent material, launch the fluorescence that wavelength is λ, enter transmission mode, be delivered to solar cell 14 and be absorbed, finally export electric energy.
The advantage of this structure is: replace more expensive solar cell with cheap concentrator, greatly reduced the use amount of solar cell, also just greatly reduced the cost of solar energy power generating.

Claims (7)

1. a high-efficiency solar fluorescence concentrator comprises glass cover-plate (1), selective reflecting layer (2), fluorescent flat optical waveguide (6), high reflective film (8), base plate (9), side baffle plate (5) and side openings (4), it is characterized in that:
The lower surface of glass cover-plate (1) arranges selective reflecting layer (2); The inner surface of the upper surface of base plate (9) and side baffle plate (5) is provided with high reflective film (8); Leave thin layer of air (3) and following thin layer of air (7) respectively between fluorescent flat optical waveguide (6) and the glass cover-plate (1) and between fluorescent flat optical waveguide (6) and the base plate (9); Leave side openings (4) on the side baffle plate (5), be used for deriving or utilizing the solar energy of collecting.
2. a kind of high-efficiency solar fluorescence concentrator according to claim 1, it is characterized in that: described selective reflecting layer (2) is Low-e film or layer of photonic crystals.
3. a kind of high-efficiency solar fluorescence concentrator according to claim 1 is characterized in that: described base plate (9) and side baffle plate (5) adopt metal material or plastic material to make, and metal material is good.
4. a kind of high-efficiency solar fluorescence concentrator according to claim 1 is characterized in that: the material of described high reflective film (8) is the best for silver, gold, copper or aluminium, silver.
5. a kind of high-efficiency solar fluorescence concentrator according to claim 1, it is characterized in that: fluorescent material and transparent medium are contained in described fluorescent flat optical waveguide (6) inside; Described fluorescent flat optical waveguide (6) is the single or multiple lift platy structure; Having one deck in the platy structure of described fluorescent flat optical waveguide (6) at least is fluorescent material layer; The thickness range of described fluorescent flat optical waveguide (6) is the 1-30 millimeter.
6. a kind of high-efficiency solar fluorescence concentrator according to claim 5 is characterized in that: described fluorescent material be for can absorb sunlight, sends the fluorescent material of long near, the mid-infrared light of wavelength.
7. a kind of high-efficiency solar fluorescence concentrator according to claim 5, it is characterized in that: described transparent medium is the good glass of light transmission or polymer.
CN2013101109454A 2013-04-01 2013-04-01 Efficient solar energy fluorescence condenser Pending CN103236462A (en)

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
CN104934492A (en) * 2015-06-10 2015-09-23 合肥润嘉节能玻璃有限责任公司 Low-emissivity light-guide solar glass
CN104966753A (en) * 2015-06-10 2015-10-07 合肥润嘉节能玻璃有限责任公司 Photovoltaic self-cleaning low-radiation laminated glass
CN105223633A (en) * 2015-10-21 2016-01-06 广东昭信光电科技有限公司 A kind of plane fluorescent condenser and preparation method thereof
CN106406139A (en) * 2016-09-30 2017-02-15 杭州凌萤科技有限公司 Intelligent solar wall tile system
CN106558627A (en) * 2016-12-06 2017-04-05 大连海事大学 Solar energy fluorescence collector of antireflective coating and preparation method thereof is matched based on PbS quantum
CN106647347A (en) * 2016-09-30 2017-05-10 杭州凌萤科技有限公司 Intelligent solar energy household wall tile system
CN106856396A (en) * 2016-11-14 2017-06-16 中山大学 A kind of plane fluorescent concentrator
CN113410326A (en) * 2021-05-28 2021-09-17 宁波大学 Photovoltaic glass window based on planar waveguide
WO2023013216A1 (en) * 2021-08-04 2023-02-09 株式会社ジャパンディスプレイ Liquid crystal optical element
WO2023013214A1 (en) * 2021-08-04 2023-02-09 株式会社ジャパンディスプレイ Liquid crystal optical element and method for producing same

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104934492A (en) * 2015-06-10 2015-09-23 合肥润嘉节能玻璃有限责任公司 Low-emissivity light-guide solar glass
CN104966753A (en) * 2015-06-10 2015-10-07 合肥润嘉节能玻璃有限责任公司 Photovoltaic self-cleaning low-radiation laminated glass
CN105223633A (en) * 2015-10-21 2016-01-06 广东昭信光电科技有限公司 A kind of plane fluorescent condenser and preparation method thereof
CN106406139A (en) * 2016-09-30 2017-02-15 杭州凌萤科技有限公司 Intelligent solar wall tile system
CN106647347A (en) * 2016-09-30 2017-05-10 杭州凌萤科技有限公司 Intelligent solar energy household wall tile system
CN106856396A (en) * 2016-11-14 2017-06-16 中山大学 A kind of plane fluorescent concentrator
CN106558627A (en) * 2016-12-06 2017-04-05 大连海事大学 Solar energy fluorescence collector of antireflective coating and preparation method thereof is matched based on PbS quantum
CN113410326A (en) * 2021-05-28 2021-09-17 宁波大学 Photovoltaic glass window based on planar waveguide
WO2023013216A1 (en) * 2021-08-04 2023-02-09 株式会社ジャパンディスプレイ Liquid crystal optical element
WO2023013214A1 (en) * 2021-08-04 2023-02-09 株式会社ジャパンディスプレイ Liquid crystal optical element and method for producing same

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Application publication date: 20130807