CN101713241B - Light panel used in building wall lighting and sunshade lighting - Google Patents
Light panel used in building wall lighting and sunshade lighting Download PDFInfo
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- CN101713241B CN101713241B CN2009101099969A CN200910109996A CN101713241B CN 101713241 B CN101713241 B CN 101713241B CN 2009101099969 A CN2009101099969 A CN 2009101099969A CN 200910109996 A CN200910109996 A CN 200910109996A CN 101713241 B CN101713241 B CN 101713241B
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Abstract
The invention provides a light panel used in building wall lighting and sunshade lighting, which can be arranged on the outer wall of the building or substitute ordinary building outer wall, or arranged on the window top to substitute ordinary sunshade components to realize the integration of sunshade and lighting. The invention is characterized in that the light panel is transparent materials; the section shape of the light panel is in the shape of a cuniform, thus controlling the angle of the cuniform to ensure that the incident sunlight rays can be reflected for many times in the cuniform light panel, restraining the light ray path to a specified position and evenly arranging light rays, realizing the full-reflection of light rays in the light panel, and restraining the light rays at the end part of the light guide to be emitted indoors. The invention utilizes the reasonable design of the light panel, fully utilizes natural lighting to reduce the waste of electro-energy and achieves the purpose of large lighting quantity and even lighting.
Description
Technical field
The present invention relates to a kind of building indoor lighting technical field that is used to solve, relate in particular to a kind of LGP that makes in the light refraction inlet chamber.
Background technology
In the actual life, the effect of light is extremely important, and in various light sources, natural light (sunshine) is inexhaustible, and does not have any pollution.In construction work, daylighting and skewness are common problems, thus in the utilization of natural light, how fully to gather light, and to make natural light can evenly introduce indoor be present urgent problem.
In the architectural lighting design standard, the daylighting illumination that is fit to study, work is generally comparatively desirable between 200-1000lux (Lux), but usually runs into that the indoor window front position is subjected to sunlight direct projection illumination excessive (50,000-120,000 lux) and simultaneously away from the not enough 100lux of side illumination within the window; The demand of discontented podolite habit of the light of this serious inhomogeneous and excessive power and work, all unfavorable to eye hygiene and production safety etc.For solving this kind present situation, simultaneously making full use of natural lighting again and reduce the waste with electric energy, the greenhouse effect that reduce so bring, have in the prior art, utilize various skylights or roof height indoor lighting and the even light of carrying out straggly, the characteristics of this daylighting are that lighting quantity is big, imitate evenly, but complex structure, the cost height; Also have on exterior wall and window top and use light pipe, collector lens or parabolic concentrator to realize transmitting in the sunlight inlet chamber, but the effect of daylighting is bad.
There is defective in prior art, so have much room for improvement.
Summary of the invention
The objective of the invention is, the defective that exists at above-mentioned prior art provides a kind of wedge shape LGP with the even light effect of good daylighting, has realized light being passed to after the repeatedly reflection of natural light in the wedge shape LGP indoor.
Technical scheme of the present invention is as follows: a kind of LGP that is used for building wall lighting and sunshade lighting, it is characterized in that: described LGP is a transparent material, comprise incident light plane, with corresponding bottom surface of described incident light plane and emergent light face and the two sides adjacent with described bottom surface, the cross sectional shape of described LGP is a wedge shape, described emergent light face is plane and vertical with described incident light plane, the angle of described incident light plane and described bottom surface
Calculation expression is:
Wherein,
Be angle of incidence of sunlight, n is the refractive index of LGP material.
Described LGP, wherein, described incident light plane is smooth transparent, described bottom surface and described LGP two sides are smooth plated film minute surface.
Described LGP, wherein, described incident light plane and bottom surface are smooth transparent, the angle basis of described incident light plane and described bottom surface
Expression formula enlarges at least one times.
Described LGP wherein, is characterized in that: described incident light plane increases plating infrared external reflection plated film.
The sunshade LGP that described LGP is made, be used to be installed in the window top, wherein, at the adaptive arc light conductor in the emergent light face end of described wedge shape LGP, the upper and lower surface of described arc light conductor respectively with the incident light plane of described wedge shape LGP and the surface that is no rapid curvature changing after the bottom surface smooth transition is connected, described wedge shape LGP and arc light conductor are formed in one, be used for the refraction of incident sunshine is entered in the light conductor, make light after described wedge shape LGP repeatedly reflects, be directed to the light output end of described arc light conductor.
Described sunshade LGP, wherein, the upper and lower surface of described arc light conductor and two sides are the plated film minute surface, and described light output end is the anti-reflection coating layer, described arc light conductor side and transparent light guide body side surface coplane.
The leaded light exterior wall that described LGP is made, be used to be installed in the external surface of construction wall, wherein, vertically be connected with the leaded light furred ceiling at ora terminalis position, the bottom surface of described wedge shape LGP, and extend to indoor, described wedge shape LGP incident light plane end edge portion connect one with horizontal plane angle be between 40 degree are spent to 50 following leaded light furred ceiling and with described on the leaded light furred ceiling extend horizontally to indoor in the same way.
Described leaded light exterior wall wherein, is describedly gone up accommodation space of formation between leaded light furred ceiling and the following leaded light furred ceiling, and the light that is guided out after being used for the wedge shape LGP repeatedly reflected is passed to indoor.
Described leaded light exterior wall, wherein, the described leaded light furred ceiling of going up is the smooth mirror coating face of total reflection with the corresponding inner surface of following leaded light furred ceiling, and on the leaded light furred ceiling a plurality of unthreaded holes of letting out is set respectively down described.
Described LGP, wherein, described LGP is high leaded light glass, organic glass or any light-guide material.
Beneficial effect of the present invention is: because the present invention utilizes the transparent light guide material to make the wedge shape LGP, make sunshine repeatedly reflection in the wedge shape LGP of incident, constraint opticpath leaded light is to assigned address and the even light of arranging, realize that light is in the LGP inner total reflection, be incident upon indoorly in the end of light conductor thereby will retrain light, the present invention utilizes the appropriate design of LGP, makes full use of natural lighting and reduces waste with electric energy, it is big to reach lighting quantity, the daylighting effect of uniform.
Description of drawings
Fig. 1 is a wedge shape LGP cross-sectional view of the present invention;
Fig. 2 is a sunshade LGP cross-sectional view of the present invention;
Fig. 3 sunshade LGP of the present invention light path schematic diagram;
Fig. 4 is a sunshade LGP scheme of installation of the present invention;
Fig. 5 is a leaded light exterior wall cross-sectional view of the present invention;
Fig. 6 is a leaded light exterior wall scheme of installation of the present invention.
The specific embodiment
The invention provides a kind of LGP that is used for building wall lighting and sunshade lighting, clearer, clear and definite for making purpose of the present invention, technical scheme and advantage, below develop simultaneously with reference to accompanying drawing that the present invention is described in more detail for embodiment.
In order to solve the bad problem of the existing indoor lighting effect of prior art, main design of the present invention is to utilize the principle of optical total-reflection to reach constraint opticpath leaded light to assigned address and the even light of arranging, promptly when available light when the close material directive of light light is dredged material, angle of incidence of light can realize that greater than the angle of total reflection light is in the close material bodies inner total reflection of light, so adopted a kind of wedge shape transparent light guide body to be used as the matrix of leaded light, after making the refraction of incident sunshine enter light conductor, guarantee that sunlight is at the sensitive surface only import but no export, penetrate until the end through the repeatedly reflection in light conductor, reach even illumination purposes.
In conjunction with Fig. 1, it is the structure chart of wedge shape LGP of the present invention, LGP 100 is made by the transparent light guide material and is shaped as wedge shape, comprise: incident light plane 101 (upper surface), with upper surface (incident light plane 101) corresponding bottom surface 102 (soffit) and the emergent light face 103 adjacent with soffit (bottom surface), and the left and right side of transparent light guide body (104 and 105), the size of transparent light guide plate can be adjusted size according to user demand, but must satisfying, angle (that is: the angle of light conductor wedge shape) makes light portion's total reflection within it requirement, the angle between incident light plane 101 and the bottom surface 102
Calculation expression be:
Wherein,
Be angle of incidence of sunlight, n is the refractive index of LGP material.
The present invention utilizes the principle of total reflection to reach constraint opticpath leaded light in light conductor 100 and also evenly arranges light until light being delivered to assigned address, in order to realize that the incident sunshine is in the light conductor inner total reflection, requiring the upper surface 101 of wedge shape transparent light guide body is that smooth full impregnated is bright, (this surface 102 also can be smooth full transparent area to soffit 102 for the plated film minute surface, but corresponding wedge shape transparent light guide body wedged gap should additionally increase be twice), the side 104 and 105 of wedge shape transparent light guide body is respectively smooth plated film minute surface, the present invention can be arranged on indoorly towards emergent light face 103 1 ends, be located at outdoor with emergent light face 103 corresponding ends.
The wedge shape transparent light guide body of the present invention's design, after making the refraction of incident sunshine enter light conductor, through the plated film layer minute surface reflection first time, the normal angle of light after the primary event and light penetrating object light-entering surface penetrates until the end in light conductor thereby realize retraining light greater than the cirtical angle of total reflection.For guaranteeing that light penetrates from the end, plane form is adopted in design end (emergent light face 103), and this plane is vertical with upper surface (incident light plane 101), can satisfy design end (emergent light face 103) plane normal and light angle less than the cirtical angle of total reflection; In addition, for strengthening the ratio that light penetrates from the end, reduce light at end inner surface portion reflection ratio, end surface (emergent light face 103) increases the anti-reflection coating layer.
In order to reach best daylighting and even light effect, the present invention is used to satisfy different use occasions at the adaptive difform member in tail end 103 places of wedge shape LGP.According to shown in Figure 2, be the sunshade LGP 100b that utilizes the wedge shape transparent light guide plate 100 among Fig. 1 to make, its implementation is: at the adaptive arc light conductor 100a in the end of wedge shape LGP (being emergent light face 103 places), be used to regulate the afterbody rising angle, sunshade LGP 100b is made up of wedge shape transparent light guide plate 100 and arc light conductor 100a, the arc light conductor comprises upper surface 101a, soffit 102a, emergent light face 103a and about two sides (104a and 105a), wherein, upper surface 101a is connected with soffit (bottom surface) 102 smooth transition with upper surface (incident light plane) 101 of wedge shape LGP respectively with soffit 102a, guarantee that arc light conductor upper and lower surface and wedge shape light conductor upper and lower surface are tangent separately, make the upper surface 101a of arc light conductor and the surface that soffit 102a is no rapid curvature changing, about the arc light conductor two sides (104a and 105a) respectively with smooth butt joint the in left and right side (104 and 105) of transparent light guide body, the both side surface coplane, make the arc light conductor of increase and the wedge shape light conductor parts that become one, because of part light does not satisfy the requirement of angle of total reflection degree in the arc segment body, for reducing the light ray energy loss, light conductor 100a upper surface 101a, soffit 102a and about two sides (104a and 105a) be the plated film minute surface, the emergent light face 103a of arc light conductor is the anti-reflection coating layer, equally, the emergent light face 103a of arc light conductor also is planar design, and vertical with the upper surface of arc light conductor, be used to satisfy end (emergent light face 103a) plane normal and light angle less than the cirtical angle of total reflection; Be to reduce light losing, arc light conductor radius of curvature more better, length is shorter better, but because of soffit has thereon increased the total reflection plated film, radius of curvature and length are not done special restriction.See shown in the accompanying drawing 4, be that the sunshade LGP is installed in the window top, LGP is passed through the building connection that support or connecting elements and window push up towards emergent light face 103a one end, the main part of sunshade LGP is arranged on outdoor, the support of light conductor can utilize manually or electric device is controlled the angle of sunshade LGP, connect among support or the connecting elements figure and do not indicate, this support can be adjusted at any time according to the angle that light goes into to shine, by adjusting light the angle of incidence an of the best is arranged, guarantee that light can be by the repeatedly reflection of sunshade LGP inside, light is directed into behind the light output end 103a of arc light conductor in the refraction inlet chamber, has reached the even light effect of good daylighting.
The operating principle of light path when describing in detail as the sunshade LGP in conjunction with Fig. 3, wherein,
Be two surperficial angles of wedge shape transparent light guide body,
Be angle of incidence of sunlight (angle of sunshine and incidence surface normal),
Be the sunlight angle of refraction first time,
Be the sunlight angle of total reflection first time, 11 and 12 are respectively normal.When sunshine with angle of incidence
When inciding the upper surface 101 of transparent light guide body 100, light is through superrefraction (angle of refraction
) after be mapped to the bottom surface 102 of transparent light guide body 100, because of bottom surface 102 is minute surface plated film reflected back transparent light guide body 100 inside (the reflected energy loss is very little) fully, this moment, light was mapped to upper surface 101 from the inside of transparent light guide body 100 once more, its angle of incidence is
As long as guarantee
Greater than the angle of total reflection of this transparent light guide body 100, can guarantee that light is entered transparent light guide body 100 inside by reflection once more; With this rule interreflection repeatedly, light reaches tail surface (emergent light face) 103a, this moment because of the normal angle of light and emergent light face 103a less than the angle of total reflection, most of light refraction goes out transparent light guide body 100, fraction light is once more in reflected back transparent light guide body 100 inside, surperficial 103a place, for increasing leaded light efficient, tail surface 103a sets up the anti-reflection coating layer.
Another embodiment of the present invention is the wedge shape transparent light guide plate 100 that utilizes among Fig. 1, LGP is used as the leaded light exterior wall, be installed in the external surface of construction wall, see shown in the accompanying drawing 5, in wedge shape transparent light guide body 100 ends the total reflection minute surface is set, with leaded light furred ceiling in the reflection ray inlet chamber, outdoor metope is close in the bottom surface 102 of wedge shape LGP, vertically be connected and installed with leaded light furred ceiling 102b at 102 ora terminalis positions, bottom surface, and extend to indoor, one of end edge portion connection and horizontal plane angle at wedge shape LGP incident light plane 101 are that 40 degree are to following leaded light furred ceiling (total reflection minute surface) 101b between 50 degree, angle is set is 45 and can reach best reflecting effect when spending, the other end of following leaded light furred ceiling 101b with this angle is to indoor extension, the angle of its extension according to last leaded light furred ceiling 102b equidirectional extend horizontally to indoor; Form the saturating empty accommodation space in an inboard between last leaded light furred ceiling 102b and the following leaded light furred ceiling 101b, the light that is guided out after being used for the wedge shape LGP repeatedly reflected is passed to the accommodation space of sky by the reflection of last leaded light furred ceiling and following leaded light furred ceiling, by a plurality of unthreaded hole 101c that let out in following leaded light furred ceiling setting, make the light of ejaculation be evenly distributed on indoor, wherein, the inner surface of the inner surface of last leaded light furred ceiling and following leaded light furred ceiling, just two corresponding inner surfaces are the smooth mirror coating face of total reflection, and the emergent light face 103 of wedge shape LGP is provided with the total reflection minute surface, with reflection ray to following leaded light furred ceiling with gradient, repeatedly the reflection back guides light to be passed to indoor away from outer window position by a plurality of unthreaded hole 101c that let out of leaded light furred ceiling setting down in leaded light furred ceiling volume inside, thereby realize evenly illumination, see for details shown in Figure 6, the installation of the leaded light exterior wall of present embodiment needs suitable holder or connecting elements (not shown) and building to carry out connection in addition, they are not emphasis of the present invention, so omit herein.
For reducing in a large amount of infrared rays inlet chambers in the sunlight, increase interior temperature in summer and increase air conditioner load, can take to intercept the measure of infrared rays conduction, as taking one of following dual mode: the one, the surface (incident light plane 101) of facing sunshine at LGP increases plating infrared external reflection plated film; The 2nd, between light conductor afterbody (the emergent light face 103a of the tail end 103 of wedge shape LGP or arc light conductor) and window glass, set up one deck infrared external reflection coated glass.
Key problem in technology of the present invention is the angle that must guarantee light internal reflection for the second time
Greater than the angle of total reflection of this transparent light guide body 100, need to control rational solar angle for this reason
Two surperficial angles of (angle of sunshine and incidence surface normal) and sphenoid transparent light guide body
Solar angle
Big more, the angle of internal reflection
The easy more cirtical angle of total reflection that reaches, but
Big more, sunlight is bigger in the reflection loss of the external surface 101 of light conductor; According to parallel and vertical two electric vectors of sunlight reflected energy rule at dielectric surface, special angle when (this certain angle scope is called Beirut window) its parallel electric vector loss be zero.Therefore
Select Beirut window angle, maximizing utilizes sun light lighting.
Material as light conductor is selected simple glass, and its refractive index is 1.52, optimized incidence
Light conductor is installed also to be needed to adjust its angle according to installation position, geographic latitude, when
When selected, minimum
Calculate according to formula (1), draw the angle (that is: the angle of light conductor wedge shape) of transparent light guide plate, can satisfy making the total reflection requirement of light at the transparent light guide intralamellar part.
The material of light conductor can be high leaded light glass, acryl (organic glass) or other light-guide materials etc.
It should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. LGP that is used for building wall lighting and sunshade lighting, it is characterized in that: described LGP is a transparent material, comprise incident light plane, with corresponding bottom surface of described incident light plane and emergent light face and the two sides adjacent with described bottom surface, the cross sectional shape of described LGP is a wedge shape, described emergent light face is plane and vertical with described incident light plane, the angle of described incident light plane and described bottom surface
Calculation expression is:
Wherein,
Be angle of incidence of sunlight, n is the refractive index of LGP material.
2. LGP according to claim 1 is characterized in that: described incident light plane is smooth transparent, and described bottom surface and described LGP two sides are smooth plated film minute surface.
3. LGP according to claim 1 is characterized in that: described incident light plane and bottom surface are smooth transparent, the angle basis of described incident light plane and described bottom surface
Expression formula enlarges at least one times.
4. according to claim 2 or 3 described LGPs, it is characterized in that: described incident light plane increases plating infrared external reflection plated film.
5. the sunshade LGP that LGP according to claim 1 is made, be used to be installed in the window top, it is characterized in that: at the adaptive arc light conductor in the emergent light face end of described wedge shape LGP, the upper and lower surface of described arc light conductor respectively with the incident light plane of described wedge shape LGP and the surface that is no rapid curvature changing after the bottom surface smooth transition is connected, described wedge shape LGP and arc light conductor are formed in one, be used for the refraction of incident sunshine is entered in the light conductor, make light after described wedge shape LGP repeatedly reflects, be directed to the light output end of described arc light conductor.
6. sunshade LGP according to claim 5 is characterized in that: the upper and lower surface of described arc light conductor and two sides are the plated film minute surface, and described light output end is the anti-reflection coating layer, described arc light conductor side and wedge shape LGP side coplane.
7. sunshade LGP according to claim 6 is characterized in that: described LGP is high leaded light glass or organic glass.
8. the leaded light exterior wall that LGP according to claim 1 is made, be used to be installed in the external surface of construction wall, it is characterized in that: vertically be connected with the leaded light furred ceiling at ora terminalis position, the bottom surface of described wedge shape LGP, and extend to indoor, described wedge shape LGP incident light plane end edge portion connect one with horizontal plane angle be between 40 degree are spent to 50 following leaded light furred ceiling and with described on the leaded light furred ceiling extend horizontally to indoor in the same way.
9. leaded light exterior wall according to claim 8 is characterized in that: describedly go up accommodation space of formation between leaded light furred ceiling and the following leaded light furred ceiling, the light that is guided out after being used for the wedge shape LGP repeatedly reflected is passed to indoor.
10. leaded light exterior wall according to claim 9 is characterized in that: the described leaded light furred ceiling of going up is the smooth mirror coating face of total reflection with the corresponding inner surface of following leaded light furred ceiling, and on the leaded light furred ceiling a plurality of unthreaded holes of letting out is set respectively down described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101099969A CN101713241B (en) | 2009-11-04 | 2009-11-04 | Light panel used in building wall lighting and sunshade lighting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101099969A CN101713241B (en) | 2009-11-04 | 2009-11-04 | Light panel used in building wall lighting and sunshade lighting |
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| CN101713241A CN101713241A (en) | 2010-05-26 |
| CN101713241B true CN101713241B (en) | 2011-08-17 |
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| CN2009101099969A Expired - Fee Related CN101713241B (en) | 2009-11-04 | 2009-11-04 | Light panel used in building wall lighting and sunshade lighting |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899055A (en) * | 2012-12-28 | 2014-07-02 | 德胜（苏州）洋楼有限公司 | Adjustable covering shed |
| US10222016B2 (en) * | 2014-06-30 | 2019-03-05 | Sharp Kabushiki Kaisha | Daylighting member, daylighting apparatus, roll screen, and blind |
| CN105544893A (en) * | 2016-01-25 | 2016-05-04 | 金烜伊 | Sun-shading heat-storage device for building outer wall |
| JP6828998B2 (en) * | 2016-02-10 | 2021-02-10 | 大成建設株式会社 | Solar lighting unit, solar lighting system |
| CN110258982B (en) * | 2019-07-02 | 2024-04-02 | 福州市规划设计研究院集团有限公司 | Intelligent building sunshade system capable of conducting light guide illumination and natural ventilation |
Citations (4)
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|---|---|---|---|---|
| CN1202626A (en) * | 1997-06-17 | 1998-12-23 | 刘驹 | Lighting compensating device for buildings and its using method |
| CN2714956Y (en) * | 2004-07-07 | 2005-08-03 | 王辉 | Sunlight admitting device for shady space of building |
| WO2007145248A1 (en) * | 2006-06-16 | 2007-12-21 | Fujifilm Corporation | Light guide plate, light guide plate assembly, and surface illuminating device and liquid crystal display device using these |
| RU2364904C1 (en) * | 2008-03-14 | 2009-08-20 | Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд." | Backlighting device |
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2009
- 2009-11-04 CN CN2009101099969A patent/CN101713241B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1202626A (en) * | 1997-06-17 | 1998-12-23 | 刘驹 | Lighting compensating device for buildings and its using method |
| CN2714956Y (en) * | 2004-07-07 | 2005-08-03 | 王辉 | Sunlight admitting device for shady space of building |
| WO2007145248A1 (en) * | 2006-06-16 | 2007-12-21 | Fujifilm Corporation | Light guide plate, light guide plate assembly, and surface illuminating device and liquid crystal display device using these |
| RU2364904C1 (en) * | 2008-03-14 | 2009-08-20 | Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд." | Backlighting device |
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