CN1982942A - Same light-source focus-transferring series mirror - Google Patents
Same light-source focus-transferring series mirror Download PDFInfo
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- CN1982942A CN1982942A CNA2006100548365A CN200610054836A CN1982942A CN 1982942 A CN1982942 A CN 1982942A CN A2006100548365 A CNA2006100548365 A CN A2006100548365A CN 200610054836 A CN200610054836 A CN 200610054836A CN 1982942 A CN1982942 A CN 1982942A
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- focus
- mirror
- focal point
- same light
- light source
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
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- Photovoltaic Devices (AREA)
Abstract
A series mirror for transferring focal point of the same light source is prepared as forming focal point fixed type of focal point transfer lens by convex lens and planar lens for realizing focal point transfer, forming focal point adjustable type of focal point transfer lens by multiple planar lens for realizing focal point transfer and setting fixed focal point on focal point transfer concave lens for making its all focal points be on a ring form trace.
Description
One, technical field:
1, optical field 2, field of solar energy
Two, background technology:
Rudimentary knowledge class: middle school textbook " physics "
News category: Chinese Central Television's " news hookup "
Shandong TV Station " Shandong news hookup "
" rural monsoon "
Other news column
Three, summary of the invention:
(illustrate: " focus-transferring series mirror of same light source " " focus transfer " of indication in this, for our said convex lens, concave mirror usually.Usually our said convex lens, concave mirror, they all be from primary optical axis to around radiosymmetric, their focus is all on their primary optical axis; And " focus-transferring series mirror of same light source " just do not have such restriction.) (because concave mirror is a spherical part, we also can be called the straight line through the concave mirror center and the place ball centre of sphere primary optical axis of concave mirror).
We are in the junior middle school, when senior middle school study convex lens, concave mirror, know that they can both converge the light parallel with primary optical axis in focus, and focus are all on the primary optical axis of convex lens, concave mirror.We find that its focus drops on the top of object all the time when using convex lens to converge sunshine separately; When using separately concave mirror to converge sunshine, can drop on the bottom of object though find the focus of concave mirror because focus is all the time on the primary optical axis of concave mirror, object still point a little louder no matter, all will with concave mirror to moving day and mobile.This has limited their actual value greatly.
So, whether there is quasi-instrument to utilize solar source in tracking, make focus not only drop on the bottom of object but also do not make movement of objects artificially? in other words be exactly: whether when utilizing the solar energy heating object, realize forming unified easily from the lower heating object with traditional heat source? answer is sure.We can utilize " focus-transferring series mirror of same light source " this quasi-instrument to realize this purpose.
The focus-transferring series mirror of same light source (hereinafter to be referred as " focus transfer mirror ") comprising:
(1) the fixed focal length formula focus of same light source shifts mirror (hereinafter to be referred as " fixed focal length formula focus shifts mirror ")
(2) the adjustable focal length formula focus of same light source shifts mirror (hereinafter to be referred as " adjustable focal length formula focus shifts mirror ")
(3) focus of same light source shifts concave mirror (hereinafter to be referred as " focus transfer concave mirror ")
Introduce these three kinds of focuses below respectively and shift mirror:
(1) fixed focal length formula focus shifts mirror:
" fixed focal length formula focus shifts mirror " is made up of two major parts: a, convex lens b, level crossing.Its set-up mode has two kinds:
1, convex lens are configured on the reflection ray of level crossing.(as shown in Figure 1).
Utilize the principle of level crossing " direct reflection ", we can change the direction of propagation of light, make same light source light the direction of propagation almost can to around any one party change.Like this, the appropriate location on the light that level crossing reflected disposes convex lens, and the position of focus is changed thereupon, realizes the purpose that focus shifts.In this setup if be light source with the sun, a movable plane mirror so, convex lens do not move, and the position of focus is not changed.
2, level crossing is configured on the refracted ray of convex lens.(as shown in Figure 2.)
Appropriate location on the convex lens refracted ray in one times of focal length disposes a level crossing, just can realize the purpose that focus shifts.In this set-up mode,,, the position of focus is not changed by the common mobile tracking light source of convex lens and face mirror if be light source with the sun.
(2) adjustable focal length formula focus shifts mirror (as shown in Figure 3)
The mode of the intensity of illumination of same light source with reflection or refraction improved, and we just can be called focusing to this phenomenon, and the strongest any of intensity of illumination is focus.
After one level crossing is divided into two or more level crossings, up, down, left, right, before and after moves suitable distance respectively, if can reflect the light of same light source simultaneously to converge and be superimposed upon a place, intensity of illumination strengthens, this phenomenon is called cuts apart transfer focusing phenomenon, and this principle is called cuts apart the transfer focusing principle.
" adjustable focal length formula focus shifts mirror " mainly is made up of a plurality of level crossings.Just can realize that according to " cut apart and shift focusing principle " focus of same light source shifts.Its arrangement mode and spread geometry can be decided as required.How many sizes of the focus intensity of " adjustable focal length formula focus shift mirror " is decided by the size of the total area of the level crossing of forming it and level crossing quantity.Its focal length is adjustable.
According to " cut apart shift building up principle ", the concave mirror of our indication can be regarded as by several minimum level crossings and forms usually, and it can be described as a kind of special case of " adjustable focal length formula focus transfer mirror ".In fact, " adjustable focal length formula focus shifts mirror " also can regard a special irregular concave mirror as.
(3) focus shifts concave mirror
" focus transfer concave mirror " is the feature of single individuality though focal length is fixed, and it has usually said concave mirror is not assembly.
According to " cut apart and shift focusing principle ", can all level crossings in " adjustable focal length formula focus shifts mirror " be moved, piece together in the same concave surface, just can produce " focus transfer concave mirror " thus.Its all focuses are on the track of an annular." focus transfer concave mirror " also can be described as a kind of special case of " adjustable focal length formula focus shifts mirror ".Can be used as the figure method and make its one of them tangent plane.(as shown in Figure 4).
Shift in the mirror in " fixed focal length formula focus shifts mirror ", " adjustable focal length formula focus shifts mirror ", " focus transfer concave mirror " above three kinds of focuses, to light source one side's focus, being convenient to us utilizes, though the focus away from light source one side exists in theory, be not easy to us and utilize.If when being light-resource fousing with the sun, their focus all can drop on the bottom of object and object is motionless.
Sun power in the practical application " focus transfer mirror " should possess: 1, support; 2, anti-dedusting, water proof equipment; 3, auto-focus function; 4, track (individually).
Four, description of drawings:
Fig. 1, expression be: be light source with the sun, convex lens are configured in " the fixed focal length formula focus shift mirror " on the flat mirror reflects light, and focus is the synoptic diagram of F.
Fig. 2, expression be: be light source with the sun, " fixed focal length formula focus shift mirror " focus that level crossing is configured on the convex lens refracted ray is the synoptic diagram of F.
Fig. 3, expression be: the focusing synoptic diagram of " adjustable focal length formula focus shift mirror ", wherein: A, B, C ... represent each level crossing, their common compositions " adjustable focal length formula focus shifts mirror ", converge sunshine in focal point F.
Fig. 4, expression be: be used as the figure method and make " focus transfer concave mirror " one of them tangent plane.
It does drawing method:
1, make sunray a, b, c, d, and definite focal point F and last 1 A of light a.
2, connecting AF is reflection ray, makes the level crossing a1 that A is ordered.A1 and light b line meet at the B point.
3, make the level crossing b1 that B is ordered, b1 and light c meet at the C point.
4, make the level crossing c1 that C is ordered, c1 and light d meet at the D point.
5, make the level crossing d1 that D is ordered.
So, the para-curve of selecting through A, B, C, D is exactly " focus transfer concave mirror " one of them tangent plane.
Five, embodiment:
" focus transfer mirror " can be widely used in: solar electrical energy generation; Solar water heater; The enhancing of the intensity of illumination of solar-energy photo-voltaic cell; Sun power cutting, welding; Daylighting in indoor, the subway, in the tunnel; Bake clothing, grain etc.; The desalinization engineering; The manufacturing of sun power train, solar telephone; The heating indoor, that green house of vegetables is interior; Occurring in nature, the medium focus transfer phenomena of building the aspect such as prevent.
Do schematic illustration with several concrete examples below:
A, solar electrical energy generation aspect
At first, we have a look at first " 3 years systems of nine-year compulsory education junior high school textbook "---" physics " (October in 1994 the 1st edition, in April, 1998 Shandong the 4th printing) " coloured picture 14: be built in the solar power plant of US West, 100,000 kilowatts of peak power outputs in.Catoptron towards using the electronics computer control, sunshine is reflexed on the heat collector." the following several problems of its existence:
1, it does not have to break away from the constraint of " concave mirror optically focused theory ".Be not difficult to find out that from figure it designs according to the appearance of a big concave mirror in fact, focus is above circular reflector array central authorities.
2, not lower heating from heat collector, but the heating from the side of single ground.Do not form unification from the lower heating object easily with traditional heat source.
3, light (heat) utilization factor concentrated of catoptron is lower, and the most of directive of concentrating of light (heat) is aerial.
4, reflection mirror array unit area glazing (heat) reflectivity is lower, thereby the reflection mirror array floor area increases.
5, the ability of the absorbing light (heat) of absorbing light (heat) parts is lower, and it is more that the light of absorption (heat) upwards scatters and disappears.
6, it transmits the heat of collecting downwards, and against " directivity that heat is transmitted ", heat scatters and disappears easily, and this also is because the result of " concave mirror optically focused theory " restriction.
Converge sunshine (heat) heat supply generating if adopt " adjustable focal length formula focus shifts mirror ", just can overcome the above problems, form unification from the lower heating object easily with traditional heat source, almost can directly substitute coal one class A fuel A heat supply generating, the cost of solar electrical energy generation is reduced, and efficient improves.
B, solar water heater aspect
Existing water heater generally all is directly to absorb sunshine (heat) from top, and water temperature is generally the highest about 90 ℃, is no more than 100 ℃.
If adopt " focus transfer mirror " to compile sunshine (heat) on solar water heater, water temperature can reach or surpasses 100 ℃, but and extended day heating time.
C, photovoltaic cell aspect
On January 12nd, 2006, Chinese Central Television's " news hookup " once broadcasted the news of " photovoltaic cell ".Photovoltaic cell has effectively solved the absorption problem of light (heat), and the light that it almost obtains it (heat) all sponges, in order to generating.But, the sunshine (heat) of the nature that photovoltaic cell just absorbs.If shine on the photovoltaic cell after with " focus transfer mirror " intensity of illumination of sunshine being strengthened, just can improve its generating efficiency, but and extended day generating dutation.
D, occurring in nature are built medium " focus transfer phenomena " prevention aspect
Shandong TV Station " rural monsoon " column once broadcasted such a piece of news: the material that has human to make sheet asbestos is made solar cooker, can heat up water, cook.From being not difficult to find out that here sunshine (heat) is easy to converge.
By knowing by inference " focus transfer mirror " and " cut apart and shift focusing principle ": large-area bare rock, Gobi desert, large-area the burning plain of the desert lowland etc. under strong solar radiation, just might produce focus and shift the focusing phenomenon.When aircraft such as aircraft occupy focus in a flash, the parts responsive to light (heat) just might be destroyed; Because a kind of electromagnetic wave only, the control on the aircraft, contacted system are malfunctioning owing to be subjected to powerful interference, thereby lead to accident such as air crash.
Because the existence of some unreasonable structure, the glass on the buildingss such as some high building, level and smooth wall etc. under strong solar radiation, also might produce focus and shift the focusing phenomenon, bring potential safety hazard for fire prevention, communication etc.
" focus transfer phenomena " is outwardness.We will utilize and prevent the generation of focus transfer phenomena according to its principle, and making " focus transfer mirror " is that we serve better.
Claims (2)
1, the used total technical characterictic of catoptron in the focus-transferring series mirror of same light source and usually said concave mirror, convex lens, existing solar power plant is: parallel rays is converged, strengthen intensity of illumination.
2, the focus-transferring series mirror of same light source is characterized in that: a plurality of focuses more than two are arranged, and in sun power utilized: a, its focus can drop on underbelly and object is motionless; B, can strengthen and object is motionless the intensity of illumination of object.
Priority Applications (1)
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CNA2006100548365A CN1982942A (en) | 2006-02-17 | 2006-02-17 | Same light-source focus-transferring series mirror |
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CNA2006100548365A CN1982942A (en) | 2006-02-17 | 2006-02-17 | Same light-source focus-transferring series mirror |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106321380A (en) * | 2016-08-23 | 2017-01-11 | 石家庄先行网络科技有限公司 | Solar light-condensing and heat-collecting power generation system |
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- 2006-02-17 CN CNA2006100548365A patent/CN1982942A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106321380A (en) * | 2016-08-23 | 2017-01-11 | 石家庄先行网络科技有限公司 | Solar light-condensing and heat-collecting power generation system |
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