CN103017072B - Dome skylight, light-collecting device and illuminating system - Google Patents
Dome skylight, light-collecting device and illuminating system Download PDFInfo
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- CN103017072B CN103017072B CN201210590382.9A CN201210590382A CN103017072B CN 103017072 B CN103017072 B CN 103017072B CN 201210590382 A CN201210590382 A CN 201210590382A CN 103017072 B CN103017072 B CN 103017072B
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- selective reflector
- radiation
- wave length
- light
- dome skylight
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Abstract
The invention discloses a dome skylight, a light-collecting device and an illuminating system. The dome skylight comprises a selective reflector, a light receiver and a shade body, wherein the selective reflector is provided with a concave mirror type lighting surface, and can at least partially reflect and converge radiation irradiating on the lighting surface and provided with a first wavelength and enable at least part of radiation irradiating on the lighting surface and provided with a second wavelength to transmit and pass; the light receiver is positioned on the backlight side of the selective reflector and used for receiving the radiation transmitting and passing through the selective reflector; and the shade body is used for supporting both the selective reflector and the light receiver. The dome skylight, the light-collecting device and the illuminating system can comprehensively utilize solar energy more sufficiently.
Description
Technical field
The present invention relates to daylighting and lighting field, particularly relate to a kind of dome skylight, light collecting device and illuminator.
Background technology
Utilizing sunshine to carry out room lighting is a kind of novel green illumination scheme.It by solar light collection and can be transported to Indoor environment, replaces light to throw light on.This can realize the sufficient utilization to natural resources, again can economize energy.But current daylight illuminating system light efficiency rate is lower, and the sun light quantity that can utilize is less.And the function ratio of current daylight illuminating system is more single, can only collects and transmit sunlight.Moreover current daylight illuminating system only could realize illumination in the more sufficient situation of daylight, be then difficult to realize illumination at night or rainy weather.
Summary of the invention
An object of the present invention is to provide a kind of multi-functional dome skylight, and it not only can collect the sunlight being directly used in illumination efficiently, another part sunlight can also be utilized to carry out generating electricity or the function such as signal detection.
The present invention also aims to provide a kind of light collecting device comprising above-mentioned dome skylight, the region needing illumination not only can be collected and be delivered to sunlight by efficiently, another part sunlight can also be utilized to carry out generating electricity or the function such as signal detection.
The present invention also aims to provide a kind of illuminator, its can utilize daylight realize simultaneously in the daytime with the illumination at night.
In order to realize foregoing invention object, technical scheme of the present invention realizes in the following manner:
According to an aspect of the present invention, a kind of dome skylight is provided, comprises:
Selective reflector, there is into the daylighting surface of concave mirror form, the radiation with first wave length be irradiated on daylighting surface can be reflected and assemble by described selective reflector at least in part, and the radiation with second wave length be irradiated on daylighting surface can be made to be transmitted through at least in part;
Optical pickup apparatus, described optical pickup apparatus is positioned at the backlight side of described selective reflector, for receiving the radiation being transmitted through selective reflector; With
Cover body, described cover body is for supporting described selective reflector and optical pickup apparatus.
Further, described first wave length can be visible wavelength, and described second wave length can be long for infrared waves.
Further, described first wave length can be visible wavelength, and described second wave length also can be visible wavelength.
Further, described selective reflector can be not less than 70% for the reflectivity of the radiation with first wave length.
Further, described selective reflector can be 30%-70% for the transmissivity of the radiation with second wave length.
Further, described selective reflector can be multi-layer mirror.
Particularly, described multi-layer mirror can be enhanced specular reflector.
Further, described optical pickup apparatus can comprise solar panel or optical sensor, and the power conversion of the radiation being transmitted through selective reflector can be become electric energy by described solar panel.
According to a further aspect in the invention, provide a kind of light collecting device, comprising:
Any one dome skylight above-mentioned, described dome skylight has light hole;
Directing mirror, for guiding in light hole by the radiation with first wave length of being reflected by dome skylight; With
Guide lighting channel, described guide lighting channel is connected with light hole, for collecting and carrying the radiation with first wave length guided to by directing mirror in light hole.
Further, described optical pickup apparatus can comprise solar panel, and the power conversion of the radiation being transmitted through selective reflector can be become electric energy by described solar panel.
Further, the reflecting surface of described directing mirror and the daylighting surface of described selective reflector can for being total to the parabola of primary optical axis, and described primary optical axis is through described light hole.
Further, described light collecting device can also comprise sun tracing system, described sun tracing system comprises photosensitive probe and drive unit, described photosensitive probe is for measuring the direction of the sun, described drive unit is used for driving dome skylight according to the measurement result of photosensitive probe, makes the primary optical axis on the daylighting surface of selective reflector remain parallel to the incident direction of sunshine.
Further, guide lighting channel can be formed by total reflection light pipe or optical fiber.
According to a further aspect in the invention, a kind of illuminator is provided, comprises:
Any one light collecting device above-mentioned;
Energy storage device, is connected with solar panel with wire, for the electrical power storage exported by solar panel;
Daylight-illumination device, is connected with guide lighting channel, utilizes the radiation of to be collected by guide lighting channel and carrying to throw light on; With
Power lighting device, is connected with energy storage device with wire, utilizes the electric energy of energy storage device to throw light on.
At least one aspect in technique scheme of the present invention utilizes selective reflector, is gathered efficiently by the light being directly used in illumination on the one hand, utilizes the radiation being transmitted through selective reflector to perform the functions such as generating, energy storage or signal detection on the one hand.Solar energy can be fully utilized more fully like this.
Accompanying drawing explanation
Fig. 1 illustrates the structural representation of the dome skylight according to one embodiment of the invention;
Fig. 2 illustrates the reflectivity of a kind of exemplary multilayer optical film according to one embodiment of the invention;
Fig. 3 schematically shows the spectral response curve of a kind of example solar panel according to one embodiment of the invention;
Fig. 4 illustrates the daylighting schematic diagram comprising the light collecting device of dome skylight according to one embodiment of the invention; With
Fig. 5 illustrates the schematic diagram with the light collecting device of solar electric power supply system according to one embodiment of the invention.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.In the description, same or analogous drawing reference numeral represents same or analogous parts.The explanation of following reference accompanying drawing to embodiment of the present invention is intended to make an explanation to present general inventive concept of the present invention, and not should be understood to one restriction of the present invention.
Fig. 1 schematically shows the basic structure of the dome skylight 100 according to one embodiment of the invention.This dome skylight 100 can comprise selective reflector 1, optical pickup apparatus 2 and cover body 3.Selective reflector 1 has into the daylighting surface 10 of concave mirror form, the radiation 41 with first wave length be irradiated on daylighting surface 10 can be reflected and assemble by described selective reflector 1 at least in part, and the radiation 42 with second wave length be irradiated on daylighting surface 10 can be made to be transmitted through at least in part.In one example, optical pickup apparatus 2 can be positioned at the backlight side of selective reflector 1, for receiving the radiation being transmitted through selective reflector 1.Cover body 3 is for supporting described selective reflector 1 and optical pickup apparatus 2.
In one example, the radiation 41 with first wave length be irradiated on daylighting surface 10 can be reflected and assemble by selective reflector 1 fully.And in another example, the radiation 41 with first wave length be irradiated on daylighting surface 10 can partly be reflected and assemble by selective reflector 1, such as, described selective reflector can for being not less than 30%, being not less than 50%, being not less than 70% or 50%-90% etc. for the reflectivity of the radiation with first wave length.In one example, selective reflector 1 can make the radiation 42 with second wave length be irradiated on daylighting surface 10 be transmitted through fully.And in another example, selective reflector 1 also can make the radiation 42 with second wave length be irradiated on daylighting surface 10 partly be transmitted through, such as, selective reflector 1 can be not less than 80% for the transmissivity of the radiation 42 with second wave length, can be 30%-70%, can be maybe 20%, 40% or 50% etc.
In one example, described first wave length can be in different wave-length coverages from second wave length.Such as, described first wave length can be visible wavelength (such as 400nm to 700nm), and described second wave length can be infrared waves long (such as 760nm to 400 μm).
In another example, described first wave length can be in identical wave-length coverage with second wave length, and such as first wave length can be visible wavelength, and described second wave length also can be visible wavelength.Certainly, first wave length and second wave length can be the different wave length in visible wavelength range.
In one example, selective reflector 1 can be multi-layer mirror, such as, and enhanced specular reflector (ESR).Multi-layer mirror can comprise multiple reflecting layer, such as, be greater than 5 layers, is greater than 20 layers, is greater than 50 layers, is greater than 100 layers, such as 150 layers.Fig. 2 gives a kind of reflectivity of exemplary multiple layer film speculum and the relation of wavelength.Upper as can be seen from figure, for the radiation of wavelength between 425nm to 660nm, the reflectivity of this exemplary multiple layer film speculum is essentially 100%, and for the radiation of wavelength between 400nm to 700nm, the reflectivity of this exemplary multiple layer film speculum is all very high.And for the radiation of wavelength more than 700nm, the reflectivity of this exemplary multiple layer film speculum is then below 20%.And simultaneously, described exemplary multiple layer film speculum also has the transmissivity of more than 70% in the radiation of more than 730nm to wavelength.Should be appreciated that multi-layer mirror according to the present invention is not limited to this example, if can realize above-mentioned selective reflector 1 for have first wave length radiation 41 reflection function and for the transmission function of radiation 42 with second wave length.Adopt multi-layer mirror, can realize that thickness is less, the uniform selective reflector 1 of reflectivity.
In one example, optical pickup apparatus 2 can comprise solar panel or optical sensor (as photodiode etc.) or as known in the art other receives and utilize the device of luminous energy or optical information.Solar panel can convert the luminous energy of the received radiation 42 with second wave length to electric energy.The electric energy converted to may be used for being supplied to answers electrical appliance to use.Solar panel can be such as single-crystalline-silicon solar-cell panel, and Fig. 3 gives a kind of spectral response curve of example solar panel.As can be seen from Figure 3, the spectral absorption peak of this example solar panel is near 825nm, this is in region of ultra-red, therefore, when second wave length is infrared light wavelength, this example solar panel can absorb luminous energy fully to produce electric energy, moreover, the absorption spectrum of this example solar panel also cover most of visible-range, therefore, when second wave length is visible ray, this example solar panel also can absorb luminous energy more fully to produce electric energy.
Should be appreciated that solar panel according to the present invention is not limited thereto example, be also not limited to only be made up of monocrystalline silicon, can also adopt polysilicon, non-crystalline silicon, even the material such as cadmium telluride, CIS is made.As long as the absorption of the radiation to second wave length can be met.Optical pickup apparatus 2 can comprise whole piece solar panel, also can be spliced by multi-disc solar panel.Such as, in order to form the shape of concave mirror, multi-disc solar panel can be utilized to be combined into this shape approx, to reduce the requirement of the strength and stiffness of the material to solar panel.
In one example, optical sensor can sense the information such as intensity, direction, phase place of the received radiation 42 with second wave length, such as, for analyzing the various change information such as exposure intensity, position of sunlight according to these information detected.Optical pickup apparatus 2 can have solar panel and optical sensor simultaneously, also can have one of them.The electric current that optical pickup apparatus 2 (such as solar panel or optical sensor) produces or the signal of telecommunication can be drawn with wire 6.
Should be appreciated that the shape of concave mirror described in this article, can be parabolic shape, ellipsoid shape, double-curved shapes or other curve form any.Wherein parabolic shape is particularly useful for the situation of parallel sunshine incidence.Described concave mirror shape is also not necessarily perfectly smooth, and it can be made up of smooth curved surface, also can be spliced to form by multiple facet.
In one example, selective reflector 1, can be bonded (as shown in Figure 1) with transparent adhesive tape 12 between optical pickup apparatus 2 and cover body 3, also can adopt alternate manner coating known in prior art and laminating, such as, the modes such as spraying, deposition and sputtering can be adopted selective reflector 1 to be arranged on the surface of optical pickup apparatus 2.
The size (such as diameter) of dome skylight 100 in the above-described embodiments and daylighting area can be selected according to the requirement of daylighting needs or solar panel and set, such as, the diameter of dome skylight 100 can be 0.3m, 0.5m, 0.8m, 1m, 3m, 5m, 10m, 30m etc.
Fig. 4 shows a kind of light collecting device 200 according to one embodiment of the invention.Light collecting device 200 comprises: any one dome skylight 100, directing mirror 201 and guide lighting channel 202 foregoing.This dome skylight 100 can have light hole 101, directing mirror 201 is for guiding in light hole 101 by the radiation 41 with first wave length of being reflected by dome skylight 100, described guide lighting channel 202 is connected with light hole 101, for collecting and carrying the radiation 41 with first wave length guided to by directing mirror 201 in light hole 101.
In one example, the parabola of common primary optical axis can be arranged in the reflecting surface of directing mirror 201 and the daylighting surface 10 of described selective reflector 1, and described primary optical axis is through described light hole 101.In the mode of this dual paraboloid, can by radiation 41 twice focusing with first wave length in parallel sunshine to converge in guide lighting channel 202.In one example, guide lighting channel 202 can be formed by total reflection light pipe or optical fiber.The radiation 41 with first wave length can be directed to illuminated region in building to realize daylight illumination in total reflection mode in guide lighting channel 202.In one example, the reflecting surface of directing mirror 201 and the daylighting surface 10 of described selective reflector 1 have public focus, to obtain better convergent effect.In one example, directing mirror 201 can such as be supported by support bar 106 and locate.But the present invention is not limited thereto, directing mirror 201 can be fixed by any support known to the person skilled in the art and locate mode.
In one example, described light collecting device 200 can also comprise sun tracing system 203.Sun tracing system 203 such as can comprise photosensitive probe 204 and drive unit 205, described photosensitive probe 204 is for measuring the direction of the sun, described drive unit 205, for driving dome skylight 100 according to the measurement result of photosensitive probe 204, makes the primary optical axis on the daylighting surface 10 of selective reflector 1 remain parallel to the incident direction of sunshine.Described drive unit 205 can be such as made up of any angle regulator well known in the prior art or rotating driving device.
When optical pickup apparatus comprises solar panel, (such as light collecting device 200 ') as shown in Figure 5 can also arrange energy storage device 208, such as battery.Energy storage device 208 wire 6 is connected with solar panel, for the electrical power storage exported by solar panel, as shown in Figure 5.Electricity stored by energy storage device 208 may be used for for various electrical appliance 209 of answering provides electric power.Can also control system be set, for managing and controlling electric power to supply and the distribution of answering electrical appliance 209.
Embodiments of the invention also provide a kind of illuminator.This illuminator comprises: above-mentioned any one there is the light collecting device 200 of solar panel, energy storage device 208, daylight-illumination device and power lighting device.Daylight-illumination device is connected with guide lighting channel 202, utilizes the radiation of to be collected by guide lighting channel and carrying to throw light on, such as, throw light in the daytime to the region of the needs illumination in building.Power lighting device, as a kind of example of answering electrical appliance 209, is connected with energy storage device 208 with wire, utilizes the electric energy of energy storage device 208 to throw light on.The advantage of this illuminator is, solar energy can be utilized to realize day and night lighting.When sunlight is more sufficient in the daytime, light collecting device 200 can be utilized daylight to be guided to indoor the throwing light in the daytime of daylight-illumination device realization and to utilize the solar panel in reflection shield to carry out solar electrical energy generation and store electrical energy simultaneously.And under night or the insufficient situation of daylight, the electric energy supply power lighting device that solar electrical energy generation can be utilized to store throws light on.
The availability of this illuminator is described with a concrete example below.
Assuming that the efficiency of solar panel is 150W/m
2selective reflector 1 is 70% for the transmissivity of the radiation with second wave length, the daylighting area of dome skylight is 2.7 square metres, then this dome skylight can provide the electric power being approximately 280W, this electric power energy driving LED light fixture, the illumination of 28000lum (lumen) (suppose, the efficiency of LED lamp is 100lum/w) is provided.In the case, suppose that the light collecting device of this illuminator is arranged on the balcony in somewhere, Shanghai, the annual illumination in Shanghai is 35Klux, then this illuminator can provide the visible illumination being about 33.2Klux (being about the fluorescent lamp of 552W) by day, assuming that the energy transformation ratio of battery is 80%, if then per day lighting hours is 3.5 hours, the LED illumination of the 1000lum of about 7.8 hours just can be provided evening.
Visible, dome skylight of the present invention, light collecting device and illuminator have wide and practical application prospect.But; above-mentioned example is just to illustrating availability of the present invention; the present invention is not limited to this; those skilled in the art can regulate above-mentioned various parameter (transmissivity etc. as battery conversion efficiency, dome skylight size, selective reflector) as required, and, to obtain different effects, these schemes all drop in protection scope of the present invention.
Although describe the present invention by reference to the accompanying drawings, embodiment disclosed in accompanying drawing is intended to carry out exemplary illustration to the preferred embodiment for the present invention, and can not be interpreted as one restriction of the present invention.
Although some embodiments of general plotting of the present invention have been shown and explanation, those skilled in the art will appreciate that, when not deviating from principle and the spirit of this present general inventive concept, can make a change these embodiments, scope of the present invention is with claim and their equivalents.
Claims (13)
1. a dome skylight, comprising:
Selective reflector, there is into the daylighting surface of concave mirror form, the radiation with first wave length be irradiated on daylighting surface can be reflected and assemble by described selective reflector at least in part, and the radiation with second wave length be irradiated on daylighting surface can be made to be transmitted through at least in part;
Optical pickup apparatus, described optical pickup apparatus is positioned at the backlight side of described selective reflector, for receiving the radiation being transmitted through selective reflector; With
Cover body, described cover body is for supporting described selective reflector and optical pickup apparatus, and wherein, described selective reflector is multi-layer mirror and is arranged on the surface of optical pickup apparatus,
Wherein, the daylighting surface of described one-tenth concave mirror form is spliced to form by multiple facet.
2. dome skylight according to claim 1, wherein, described first wave length is visible wavelength, and described second wave length is infrared light wavelength.
3. dome skylight according to claim 1, wherein, described first wave length is visible wavelength, and described second wave length is also visible wavelength.
4. the dome skylight according to any one of claim 1-3, wherein, described selective reflector is not less than 70% for the reflectivity of the radiation with first wave length.
5. the dome skylight according to any one of claim 1-3, wherein, described selective reflector is 30%-70% for the transmissivity of the radiation with second wave length.
6. dome skylight according to claim 1, wherein, described multi-layer mirror is enhanced specular reflector.
7. the dome skylight according to any one of claim 1-3, wherein, described optical pickup apparatus comprises solar panel or optical sensor, and the power conversion of the radiation being transmitted through selective reflector can be become electric energy by described solar panel.
8. a light collecting device, comprising:
Dome skylight according to any one of claim 1-6, described dome skylight has light hole;
Directing mirror, for guiding in light hole by the radiation with first wave length of being reflected by dome skylight; With
Guide lighting channel, described guide lighting channel is connected with light hole, for collecting and carrying the radiation with first wave length guided to by directing mirror in light hole.
9. light collecting device according to claim 8, wherein, described optical pickup apparatus comprises solar panel, and the power conversion of the radiation being transmitted through selective reflector can be become electric energy by described solar panel.
10. light collecting device according to claim 8, wherein, the reflecting surface of described directing mirror and the daylighting surface of described selective reflector are the parabola of primary optical axis altogether, and described primary optical axis is through described light hole.
11. light collecting devices according to Claim 8 according to any one of-10, also comprise sun tracing system, described sun tracing system comprises photosensitive probe and drive unit, described photosensitive probe is for measuring the direction of the sun, described drive unit is used for driving dome skylight according to the measurement result of photosensitive probe, makes the primary optical axis on the daylighting surface of selective reflector remain parallel to the incident direction of sunshine.
12. light collecting devices according to Claim 8 according to any one of-10, wherein guide lighting channel is by being totally reflected light pipe or optical fiber is formed.
13. 1 kinds of illuminators, comprising:
Light collecting device according to any one of claim 9-12;
Energy storage device, is connected with solar panel with wire, for the electrical power storage exported by solar panel;
Daylight-illumination device, is connected with guide lighting channel, utilizes the radiation of to be collected by guide lighting channel and carrying to throw light on; With
Power lighting device, is connected with energy storage device with wire, utilizes the electric energy of energy storage device to throw light on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590382.9A CN103017072B (en) | 2012-12-31 | 2012-12-31 | Dome skylight, light-collecting device and illuminating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210590382.9A CN103017072B (en) | 2012-12-31 | 2012-12-31 | Dome skylight, light-collecting device and illuminating system |
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| Publication Number | Publication Date |
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| CN103017072A CN103017072A (en) | 2013-04-03 |
| CN103017072B true CN103017072B (en) | 2015-07-01 |
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| CN201210590382.9A Expired - Fee Related CN103017072B (en) | 2012-12-31 | 2012-12-31 | Dome skylight, light-collecting device and illuminating system |
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| CN105099359B (en) * | 2015-08-11 | 2017-11-10 | 中国科学技术大学先进技术研究院 | A kind of solar energy composite of distributed optically focused light splitting utilizes system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6691701B1 (en) * | 2001-08-10 | 2004-02-17 | Karl Frederic Roth | Modular solar radiation collection and distribution system |
| CN201360011Y (en) * | 2009-02-05 | 2009-12-09 | 浙江同星光电科技有限公司 | Multi-functional solar spectrum utilization device |
| CN102072453A (en) * | 2010-12-24 | 2011-05-25 | 复旦大学 | Indoor natural lighting system based on light propagation technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100951737B1 (en) * | 2009-06-19 | 2010-04-08 | 오세대 | Day lighting device and hybrid lighting system using it |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6691701B1 (en) * | 2001-08-10 | 2004-02-17 | Karl Frederic Roth | Modular solar radiation collection and distribution system |
| CN201360011Y (en) * | 2009-02-05 | 2009-12-09 | 浙江同星光电科技有限公司 | Multi-functional solar spectrum utilization device |
| CN102072453A (en) * | 2010-12-24 | 2011-05-25 | 复旦大学 | Indoor natural lighting system based on light propagation technology |
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