US3709583A - Covering device for skylights - Google Patents
Covering device for skylightsDownload PDFInfo
- Publication number
- US3709583A US3709583AUS00116853AUS3709583DAUS3709583AUS 3709583 AUS3709583 AUS 3709583AUS 00116853 AUS00116853 AUS 00116853AUS 3709583D AUS3709583D AUS 3709583DAUS 3709583 AUS3709583 AUS 3709583A
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- US
- United States
- Prior art keywords
- covering device
- supporting frame
- glass pane
- lower glass
- disposed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011521glassSubstances0.000claimsdescription16
- 238000010276constructionMethods0.000claimsdescription9
- 239000012780transparent materialSubstances0.000claimsdescription7
- 238000009792diffusion processMethods0.000claimsdescription4
- 230000005855radiationEffects0.000description7
- 230000001360synchronised effectEffects0.000description3
- 238000010521absorption reactionMethods0.000description1
- 230000000712assemblyEffects0.000description1
- 238000000429assemblyMethods0.000description1
- 239000011248coating agentSubstances0.000description1
- 238000000576coating methodMethods0.000description1
- 238000000354decomposition reactionMethods0.000description1
- 230000000694effectsEffects0.000description1
- 230000004927fusionEffects0.000description1
- 230000004313glareEffects0.000description1
- 238000010438heat treatmentMethods0.000description1
- 238000005286illuminationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 238000012986modificationMethods0.000description1
- 230000003595spectral effectEffects0.000description1
Images
Classifications
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/03—Sky-lights; Domes; Ventilating sky-lights
- E04D13/033—Sky-lights; Domes; Ventilating sky-lights provided with means for controlling the light-transmission or the heat-reflection, (e.g. shields, reflectors, cleaning devices)
Definitions
- ABSTRACT 5"350/260 A covering device for a skylight in a flat roof including s a f e ou i t e opening d ha ing
- the frameis rotatable and can be tilted or the panels can be tilted to follow the relative UNITED STATES PATENTS movement of the 2,858,734 11/1958 Boyd ..350/260 13 Claims, 4 Drawing Figures PATENTEDJAN 9 ms 3.709.583
- the present inventionrelates to a covering device for skylights, particularly in flat roofs of buildings, having triple reflector panels inclined with respect to the horizontal.
- a covering means that is often usedconsists in lattices, that is, assemblies of panels impervious to light and adjustable in their angular position. But these lattices considerably reduce the entrance of light in the spaces to be protected inasmuch as they shut off not only the portion of light rays to be excluded but also the diffused light portion that in itself is not inconvenient and is desirable for lighting the room.
- the present inventionis based on the problem of protecting to a great extent against direct solar light and heat radiation in skylights, particularly in flat roofs of buildings, and yet admitting as great as possible a portion of diffused sunlight over a broad range of the reflector principle whereby light rays striking the exposed surface at particular angles of incidence are reflected three times within the discrete reflector elements and are subsequently discharged in a direction opposite and parallel to the incoming rays (see R.W. Pohl, Optik und Atomphysik, p.
- One embodiment of the inventionconsists in that the supporting frame is mounted on horizontal rollers and is guided on its outer periphery by perpendicular rollers.
- the supporting framecan be connected with a driving motor for the rotational movement about the central axis, with the driving motor either synchronized with the movement of the sun, or being designed as a stepping motor that effects a gradual rotative movement.
- the supporting frameis adapted to be tilted on one side against the horizontal position, or the reflector panels in the supporting frame are adjustable in their inclination with respect to the horizontal position.
- the supporting frameis disposed in a space between a lower glass pane and a dome, or saddle-shaped roof or other similar roof construction of clear, transparent material, it being possible that the space be sealed.
- the lower glass panecan be constructed with a diffuser.
- Another embodiment of the inventionconsists in that the space between the dome, or saddle-shaped roof or similar roof construction and the lower glass pane is sealed against moisture diffusion.
- the reflector panelsare synchronized with or gradually adjusted according to the movement of the sun so as to ensure the full effectiveness of the reflector structure at any time of the day.
- the light transmittencedespite the effective avoidance from direct light and heat radiation, is about percent higher than in hitherto commercially available clear and transparent materials that are about equivalent in heat protection.
- the inventionmakes it possible to use completely transparent covers instead of the covers made partly impervious to light and heat such as lantern roofs, thus compensating extensively for the loss of direct light radiation for the illumination.
- the lighting of the spaces covered with the device according to the inventionwill therefore always be of a diffuse, glare-free nature with high lighting power.
- the inventionmakes it possible to plan and carry out the arrangement of skylights independently of the geographic location and of particular conditions of the plot of land inasmuch as it is no longer required to align certain parts of the cover, for instance, toward the north side as in the north-light roofs.
- FIG. 1is a diagrammatic side view of a covering device according to the invention, partly in section;
- FIG. 2is a top view of a supporting frame of the covering device with polished reflector panels diagrammatically illustrated.
- FIG. 3is a sectional view through the supporting frame along line IIIIII in FIG. 2;
- FIG. 4is a perspective view of a saddle-shaped roof construction with covering devices according to the invention.
- FIG. 1is diagrammatically illustrated in a side view, a supporting frame 1 having triple reflector panels 2 inclined against the horizontal.
- the supporting frame 1is circular and disposed in a corresponding circular skylight 3 of a flat roof 4.
- the supporting frameis mounted on horizontally disposed rollers 5 and is guided along its periphery by means of perpendicularly disposed rollers 6.
- the skylight 3is sealed at its lower surface with respect to the inner side of the space by a glass pane 7 and is sealed upwardly by a dome 8 of transparent glass.
- the glass pane 7serves, together with the dome 8, to keep the reflector panels from becoming dusty.
- the glass pane 7can have a slight glaze or can be constructed with a diffuser to render ineffective the spectral decomposition of the light produced by the reflector.
- the dome 8must consist of a clear and transparent material to permit the unhindered and directed passage of the light that is then correspondingly reflected by the reflector panels.
- the reflector panels 2are disposed in the supporting frame 1 with an inclination to the horizontal line so that their reflecting action is always available from the lowermost to the uppermost position of the sun.
- the difference of the declination of the suncan of course amount to as much as 45, as otherwise the reflector panels are no longer fully effective.
- the declination of the sun in the region of the equator to the middle latitudeis so high that this angle of 45 is exceeded. Therefore, means have been provided to lift the entire system on one side and thus adapt it to the position of the sun at the moment when the limit of effectiveness of the reflector panels rigidly disposed in the supporting frame is exceeded.
- FIG. 1the position of the supporting frame 1 that is lifted or tilted on one side with respect to the horizontal position is indicated by dotted lines.
- Another possibility of adapting the reflector panels to the position of the sun when the declination is too highis to make the panels individually movable about their longitudinal axis and adjust them accordingly to the position of the sun so that the sun rays strike every time within the range of 22.5 at both sides of the line perpendicular to the flat side of the panels.
- FIG. 2a top view of the supporting frame with the reflector panels according to the invention.
- the upper edge 9 of the supporting frame 1is designed, at least on part of the periphery, as a toothed rim in which a pinion 10 is engaged.
- the pinion 10is driven by a driving motor 11. This driving motor can work so as to move the supporting frame 1 with the reflector panels synchronized with the movement of the sun, or
- itcan be constructed as a stepping motor that gradually moves the supporting frame so as always to ensure an angle of incidence of the sunlight of at most i- 22.5 in respect to the line perpendicular to the surface of the reflector panels.
- FIG. 3is shown a section through the supporting frame along line III-III in FIG. 2.
- the arrangement of the reflector panels inclined against the horizontalcan be clearly seen here.
- FIG. 4shows a saddle-shaped roof construction 12 on a flat roof 4 diagrammatically represented in perspective.
- a shutter 14having light openings 3 to each receive the supporting frome l with reflector panels 2 according to the invention.
- the space between the dome 8 or saddle-shaped roof construction 12 and the lower glass pane 7can be sealed against moisture diffusion so that a double glazing of the dome or of the roof construction can be avoided.
- a modification of the rotating or tilting movement of the supporting framelies in initially disposing the supporting frame in a plane inclined against the horizontal line as shown, for instance, by the dotted position of the supporting frame in FIG. 1.
- the tilting capacity of the frame in operationcan be eliminated when the rotating movement of the frame takes place about a central axis perpendicular to its plane of the frame with the central axis being inclined with respect to the roof position.
- stantially horizontal roofs of buildingscomprising a supporting frame mounted in the skylight, said frame having an upper surface disposed in a plane and a central axis of rotation perpendicular to the plane of said upper surface of the supporting frame; a plurality of individual, planar triple reflector panels parallely mounted in said frame, said panels being inclined with respect to the plane of the upper surface of the supporting frame; and means for rotating said frame about its said axis to follow the azimuth of the sun thereby confining the angle of incidence of the direct rays of the sunlight to within an approximate angle of i 22.5 with respect to a line perpendicular to the said planar reflector panels.
- a covering deviceaccording to claim 1 in which the supporting frame for the triple reflector panels is circular.
- a covering deviceaccording to claim 1 in which the supporting frame is mounted on horizontal rollers and guided on its external periphery by perpendicular rollers.
- a covering devicein which the supporting frame is connected with a driving motor for the rotational movement about the central axis.
- a covering devicein which the driving motor is a stepping motor.
- a covering devicein which the supporting frame is disposed in a space between a lower glass pane and a dome made of transparent material.
- a covering devicein which the supporting frame is disposed in a space between a lower glass pane and a saddle-shaped roof construction made of transparent material.
- a covering deviceaccording to claim 1, wherein said central axis is disposed so as to be inclined with respect to the substantially horizontal position of the roof.
- a covering deviceaccording to claim 1, wherein said supporting frame is disposed in said skylight in such a way as to be tiltably adjustable with respect to the substantially horizontal position of the roof.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Optical Elements Other Than Lenses (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Blinds (AREA)
Abstract
Description
[57]ABSTRACT 5" 350/260 A covering device for a skylight in a flat roof including s a f e ou i t e opening d ha ing [58] Flew of Search 350/258 264 horizontally disposed reflector panels that are inclined References Cited relative to the roof. The frame is rotatable and can be tilted or the panels can be tilted to follow the relative UNITED STATES PATENTS movement of the 2,858,734 11/1958 Boyd ..350/260 13 Claims, 4 Drawing FiguresPATENTEDJAN 9 ms 3.709.583
SHEEIIBFZ Fig.1
s i s 251 H ///j" i I 231' '5 7 5 Fig.2
5 Fig.3
2' fF/j i W i PATENTEDJAN ems 3.709.583
BACKGROUND OF THE INVENTION In flat buildings and in the upper floors of buildings having several floors, skylights in light domes, saddleshaped roofs and lantern roofs, as well as north-light roofs have often been used for illuminating with the daylight. With these skylights the problem that constantly arises is to protect the lighted spaces against undesirable direct sun radiations and the glare and heat caused thereby.
It is for this reason that north-light roofs, for example, have been constructed so that the windows admit only the light from the north. A covering means that is often used consists in lattices, that is, assemblies of panels impervious to light and adjustable in their angular position. But these lattices considerably reduce the entrance of light in the spaces to be protected inasmuch as they shut off not only the portion of light rays to be excluded but also the diffused light portion that in itself is not inconvenient and is desirable for lighting the room.
Further, it has been sought to achieve protection against the sun by means of a partially permeable coating of glazing but this results in a reduced entrance of light and also in an undesirable heating of the glazing by absorption of the heat energy that appears.
All the above mentioned means of protection against undesirable solar radiation have the disadvantage of being associated with a great loss of light that far exceeds the measure that would be required for guarding against direct sunlight, and the entrance of diffused light is also prevented.
It has also been proposed for covering skylights to use clear, transparent covering elements that on the side facing the space to be protected have a reflector structure as known in reflecting elements. But the disadvantage of those covers is that the elements having reflector structure only effectively reflect the radiations that appear directly when these radiations fall in a range of i 22.5" in respect to the line perpendicular to the flat side of the covering element. Thus, the reflection can no longer be effectively obtained when the light source is at an angle larger than 45.
DETAILED DESCRIPTION OF THE INVENTION The present invention is based on the problem of protecting to a great extent against direct solar light and heat radiation in skylights, particularly in flat roofs of buildings, and yet admitting as great as possible a portion of diffused sunlight over a broad range of the reflector principle whereby light rays striking the exposed surface at particular angles of incidence are reflected three times within the discrete reflector elements and are subsequently discharged in a direction opposite and parallel to the incoming rays (see R.W. Pohl, Optik und Atomphysik, p. 23, 1958 (Springer Verlag, Berlin, Gottingen, Heidelberg) One embodiment of the invention consists in that the supporting frame is mounted on horizontal rollers and is guided on its outer periphery by perpendicular rollers. The supporting frame can be connected with a driving motor for the rotational movement about the central axis, with the driving motor either synchronized with the movement of the sun, or being designed as a stepping motor that effects a gradual rotative movement.
According to a further embodiment of the invention, the supporting frame is adapted to be tilted on one side against the horizontal position, or the reflector panels in the supporting frame are adjustable in their inclination with respect to the horizontal position.
In a still further embodiment of the covering device according to the present invention, the supporting frame is disposed in a space between a lower glass pane and a dome, or saddle-shaped roof or other similar roof construction of clear, transparent material, it being possible that the space be sealed. The lower glass pane can be constructed with a diffuser.
Another embodiment of the invention consists in that the space between the dome, or saddle-shaped roof or similar roof construction and the lower glass pane is sealed against moisture diffusion.
By means of the covering device for skylights according to the present invention, the reflector panels are synchronized with or gradually adjusted according to the movement of the sun so as to ensure the full effectiveness of the reflector structure at any time of the day.
The light transmittence, despite the effective avoidance from direct light and heat radiation, is about percent higher than in hitherto commercially available clear and transparent materials that are about equivalent in heat protection.
The invention makes it possible to use completely transparent covers instead of the covers made partly impervious to light and heat such as lantern roofs, thus compensating extensively for the loss of direct light radiation for the illumination.
The lighting of the spaces covered with the device according to the invention will therefore always be of a diffuse, glare-free nature with high lighting power.
The invention makes it possible to plan and carry out the arrangement of skylights independently of the geographic location and of particular conditions of the plot of land inasmuch as it is no longer required to align certain parts of the cover, for instance, toward the north side as in the north-light roofs.
An example of the invention is illustrated in the drawings and described in more detail herebelow. In the figures:
FIG. 1 is a diagrammatic side view of a covering device according to the invention, partly in section;
FIG. 2 is a top view of a supporting frame of the covering device with polished reflector panels diagrammatically illustrated; and
FIG. 3 is a sectional view through the supporting frame along line IIIIII in FIG. 2; and
FIG. 4 is a perspective view of a saddle-shaped roof construction with covering devices according to the invention.
In FIG. 1 is diagrammatically illustrated in a side view, a supportingframe 1 havingtriple reflector panels 2 inclined against the horizontal. The supportingframe 1 is circular and disposed in a correspondingcircular skylight 3 of aflat roof 4. The supporting frame is mounted on horizontally disposedrollers 5 and is guided along its periphery by means of perpendicularly disposedrollers 6.
Theskylight 3 is sealed at its lower surface with respect to the inner side of the space by aglass pane 7 and is sealed upwardly by a dome 8 of transparent glass. Theglass pane 7 serves, together with the dome 8, to keep the reflector panels from becoming dusty. Theglass pane 7 can have a slight glaze or can be constructed with a diffuser to render ineffective the spectral decomposition of the light produced by the reflector. The dome 8 must consist of a clear and transparent material to permit the unhindered and directed passage of the light that is then correspondingly reflected by the reflector panels.
By mounting the supportingframe 1 on thehorizontal rollers 5 and being guided by theperpendicular rollers 6 so that the supporting frame is rotatable about a central axis perpendicular to the horizontal, it is possible to rotate the supporting frame to follow the azimuth of the sun so as to always align thereflector panels 2 toward the sun.
Thereflector panels 2 are disposed in the supportingframe 1 with an inclination to the horizontal line so that their reflecting action is always available from the lowermost to the uppermost position of the sun. The difference of the declination of the sun, as it has already been mentioned, can of course amount to as much as 45, as otherwise the reflector panels are no longer fully effective. But the declination of the sun in the region of the equator to the middle latitude is so high that this angle of 45 is exceeded. Therefore, means have been provided to lift the entire system on one side and thus adapt it to the position of the sun at the moment when the limit of effectiveness of the reflector panels rigidly disposed in the supporting frame is exceeded. In FIG. 1 the position of the supportingframe 1 that is lifted or tilted on one side with respect to the horizontal position is indicated by dotted lines.
Another possibility of adapting the reflector panels to the position of the sun when the declination is too high is to make the panels individually movable about their longitudinal axis and adjust them accordingly to the position of the sun so that the sun rays strike every time within the range of 22.5 at both sides of the line perpendicular to the flat side of the panels.
In FIG. 2 is shown a top view of the supporting frame with the reflector panels according to the invention. Theupper edge 9 of the supportingframe 1 is designed, at least on part of the periphery, as a toothed rim in which apinion 10 is engaged. Thepinion 10 is driven by adriving motor 11. This driving motor can work so as to move the supportingframe 1 with the reflector panels synchronized with the movement of the sun, or
it can be constructed as a stepping motor that gradually moves the supporting frame so as always to ensure an angle of incidence of the sunlight of at most i- 22.5 in respect to the line perpendicular to the surface of the reflector panels.
In FIG. 3 is shown a section through the supporting frame along line III-III in FIG. 2. The arrangement of the reflector panels inclined against the horizontal can be clearly seen here.
FIG. 4 shows a saddle-shaped roof construction 12 on aflat roof 4 diagrammatically represented in perspective. In therectangular aperture 13 in the flat roof is disposed ashutter 14 havinglight openings 3 to each receive the supporting frome l withreflector panels 2 according to the invention.
The space between the dome 8 or saddle-shaped roof construction 12 and thelower glass pane 7 can be sealed against moisture diffusion so that a double glazing of the dome or of the roof construction can be avoided.
A modification of the rotating or tilting movement of the supporting frame lies in initially disposing the supporting frame in a plane inclined against the horizontal line as shown, for instance, by the dotted position of the supporting frame in FIG. 1. Under certain circumstances, the tilting capacity of the frame in operation can be eliminated when the rotating movement of the frame takes place about a central axis perpendicular to its plane of the frame with the central axis being inclined with respect to the roof position.
What we claim is:
1. A covering device for a skylight for use on sub-.
stantially horizontal roofs of buildings, comprising a supporting frame mounted in the skylight, said frame having an upper surface disposed in a plane and a central axis of rotation perpendicular to the plane of said upper surface of the supporting frame; a plurality of individual, planar triple reflector panels parallely mounted in said frame, said panels being inclined with respect to the plane of the upper surface of the supporting frame; and means for rotating said frame about its said axis to follow the azimuth of the sun thereby confining the angle of incidence of the direct rays of the sunlight to within an approximate angle of i 22.5 with respect to a line perpendicular to the said planar reflector panels.
2. A covering device according toclaim 1 inwhich the supporting frame for the triple reflector panels is circular.
3. A covering device according toclaim 1 in which the supporting frame is mounted on horizontal rollers and guided on its external periphery by perpendicular rollers.
4. A covering device according toclaim l in which the supporting frame is connected with a driving motor for the rotational movement about the central axis.
5. A covering device according toclaim 4 in which the driving motor is a stepping motor.
6. A covering device according toclaim 1 in which the supporting frame is disposed in a space between a lower glass pane and a dome made of transparent material.
7. A covering device according toclaim 1 in which the supporting frame is disposed in a space between a lower glass pane and a saddle-shaped roof construction made of transparent material.
fusion.
12. A covering device according toclaim 1, wherein said central axis is disposed so as to be inclined with respect to the substantially horizontal position of the roof.
13. A covering device according toclaim 1, wherein said supporting frame is disposed in said skylight in such a way as to be tiltably adjustable with respect to the substantially horizontal position of the roof.
Claims (13)
1. A covering device for a skylight for use on substantially horizontal roofs of buildings, comprising a supporting frame mounted in the skylight, said frame having an upper surface disposed in a plane and a central axis of rotation perpendicular to the plane of said upper surface of the supporting frame; a plurality of individual, planar triple reflector panels parallely mounted in said frame, said panels being inclined with respect to the plane of the upper surface of the supporting frame; and means for rotating said frame about its said axis to follow the azimuth of the sun thereby confining the angle of incidence of the direct rays of the sunlight to within an approximate angle of + OR 22.5* with respect to a line perpendicular to the said planar reflector panels.
2. A covering device according to claim 1 in which the supporting frame for the triple reflector panels is circular.
3. A covering device according to claim 1 in which the supporting frame is mounted on horizontal rollers and guided on its external periphery by perpendicular rollers.
4. A covering device according to claim 1 in which the supporting frame is connected with a driving motor for the rotational movement about the central axis.
5. A covering device according to claim 4 in which the driving motor is a stepping motor.
6. A covering device according to claim 1 in which the supporting frame is disposed in a space between a lower glass pane and a dome made of transparent material.
7. A covering device according to claim 1 in which the supporting frame is disposed in a space between a lower glass pane and a saddle-shaped roof construction made of transparent material.
8. A covering device according to claim 6, in which the lower glass pane is constructed with a diffuser.
9. A covering device according to claim 7 in which the lower glass pane is constructed with a diffuser.
10. A covering device according to claim 6 in which the space between the dome and the lower glass pane is sealed against moisture diffusion.
11. A covering device according to claim 7 in which the space between the saddle-shaped roof construction and the lower glass pane is sealed against moisture diffusion.
12. A covering device according to claim 1, wherein said central axis is disposed so as to be inclined with respect to the substantially horizontal position of the roof.
13. A covering device according to claim 1, wherein said supporting frame is disposed in said skylight in such a way as to be tiltably adjustable with respect to the substantially horizontal position of the roof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2009372ADE2009372C3 (en) | 1970-02-27 | 1970-02-27 | Cover device for light openings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3709583Atrue US3709583A (en) | 1973-01-09 |
Family
ID=5763609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00116853AExpired - LifetimeUS3709583A (en) | 1970-02-27 | 1971-02-19 | Covering device for skylights |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3709583A (en) |
| DE (1) | DE2009372C3 (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4258702A (en)* | 1975-07-28 | 1981-03-31 | Halm Instrument Co., Inc. | Vanes for solar heating |
| US4428358A (en) | 1981-12-28 | 1984-01-31 | Adamson James C | Solar skylight |
| WO1986001611A1 (en)* | 1984-09-06 | 1986-03-13 | So-Luminaire Systems Corp. | Combined solar tracking reflector and photovoltaic panel |
| US4773733A (en)* | 1987-11-05 | 1988-09-27 | John A. Murphy, Jr. | Venetian blind having prismatic reflective slats |
| US4883340A (en)* | 1988-08-02 | 1989-11-28 | Solar Lighting Research, Inc. | Solar lighting reflector apparatus having slatted mirrors and improved tracker |
| USD383855S (en)* | 1996-06-06 | 1997-09-16 | DayStar Sunlighting Systems, Inc. | Combined reflector and skylight assembly |
| AU695004B1 (en)* | 1997-03-31 | 1998-08-06 | Takeshi Uchida | Lighting device |
| USRE36496E (en)* | 1988-11-22 | 2000-01-18 | Solatube International, Inc. | Skylight |
| US20030159364A1 (en)* | 2002-02-28 | 2003-08-28 | The Nasher Foundation | Light transmission system and method for buildings |
| US20040231715A1 (en)* | 2003-05-20 | 2004-11-25 | Dan Pagel | Method and apparatus attenuating direct sun light while providing a view of the sky through a light tunnel in a skylight system |
| US20070235021A1 (en)* | 2006-03-15 | 2007-10-11 | Stc.Unm | Skylight/solar water heating apparatus |
| US7322156B1 (en)* | 2002-07-12 | 2008-01-29 | Solatube International, Inc. | Skylight domes with reflectors |
| WO2009080026A1 (en)* | 2007-12-20 | 2009-07-02 | Vkr Holding A/S | A weather shield and use of it for a skylight window |
| USD617008S1 (en) | 2008-01-04 | 2010-06-01 | Vkr Holding A/S | Weather shield for skylight window |
| US20100179678A1 (en)* | 2003-08-20 | 2010-07-15 | Sunpower Corporation, Systems | PV Wind Performance Enhancing Methods |
| US20120126098A1 (en)* | 2009-07-31 | 2012-05-24 | Bartenbacch Holding GmbH | Light Guiding Device |
| US8307606B1 (en) | 2011-07-07 | 2012-11-13 | Solon Corporation | Integrated photovoltaic rooftop modules |
| US8928981B2 (en)* | 2011-10-25 | 2015-01-06 | The University Of British Columbia | Sunlight redirecting mirror arrays |
| WO2015188260A1 (en)* | 2014-06-12 | 2015-12-17 | SunCentral Inc. | Light distribution systems and methods |
| US9263985B2 (en) | 2012-11-13 | 2016-02-16 | Pi Solar Technology Gmbh | Rooftop photovoltaic modules |
| US9291371B1 (en)* | 2010-09-27 | 2016-03-22 | Gary M. Lauder | Light-admitting heliostat |
| US9628019B1 (en) | 2016-09-09 | 2017-04-18 | Polar Racking Inc. | Photovoltaic panel racking system |
| WO2015104028A3 (en)* | 2014-01-09 | 2017-07-20 | Science And Technology Development Fund (Stdf) | Illumination of dense urban areas by light redirecting sine wave panels |
| US9909730B2 (en)* | 2010-09-27 | 2018-03-06 | Gary M. Lauder | Processor-controlled light-admitting heliostat |
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| US1341259A (en)* | 1919-04-26 | 1920-05-25 | Kirby Champeau Co Inc | Skylight illuminating device |
| US2022144A (en)* | 1932-05-28 | 1935-11-26 | Communications Patents Inc | Light conditioning and distribution system |
| US2858734A (en)* | 1956-02-08 | 1958-11-04 | Owens Illinois Glass Co | Skylights |
| US2918023A (en)* | 1955-01-27 | 1959-12-22 | Bruce H Bettcher | Reinforced, thermal insulating, condensation-proof and light admitting member |
| US2991697A (en)* | 1956-04-10 | 1961-07-11 | Arrow Metal Products Corp Inc | Light-controlling window structure |
- 1970
- 1970-02-27DEDE2009372Apatent/DE2009372C3/ennot_activeExpired
- 1971
- 1971-02-19USUS00116853Apatent/US3709583A/ennot_activeExpired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1341259A (en)* | 1919-04-26 | 1920-05-25 | Kirby Champeau Co Inc | Skylight illuminating device |
| US2022144A (en)* | 1932-05-28 | 1935-11-26 | Communications Patents Inc | Light conditioning and distribution system |
| US2918023A (en)* | 1955-01-27 | 1959-12-22 | Bruce H Bettcher | Reinforced, thermal insulating, condensation-proof and light admitting member |
| US2858734A (en)* | 1956-02-08 | 1958-11-04 | Owens Illinois Glass Co | Skylights |
| US2991697A (en)* | 1956-04-10 | 1961-07-11 | Arrow Metal Products Corp Inc | Light-controlling window structure |
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Also Published As
| Publication number | Publication date |
|---|---|
| DE2009372A1 (en) | 1972-02-10 |
| DE2009372C3 (en) | 1974-02-28 |
| DE2009372B2 (en) | 1973-07-19 |
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