WO1999057484A1 - Dispositif pour diriger de la lumiere - Google Patents

Dispositif pour diriger de la lumiere Download PDF

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Publication number
WO1999057484A1
WO1999057484A1 PCT/CH1999/000185 CH9900185W WO9957484A1 WO 1999057484 A1 WO1999057484 A1 WO 1999057484A1 CH 9900185 W CH9900185 W CH 9900185W WO 9957484 A1 WO9957484 A1 WO 9957484A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
collector
base body
designed
section
Prior art date
Application number
PCT/CH1999/000185
Other languages
German (de)
English (en)
Inventor
Rudolf Signer
Original Assignee
Signer Ingenieurunternehmen Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Signer Ingenieurunternehmen Ag filed Critical Signer Ingenieurunternehmen Ag
Publication of WO1999057484A1 publication Critical patent/WO1999057484A1/fr

Links

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
    • F21S19/00—Lighting devices or systems employing combinations of electric and non-electric light sources; Replacing or exchanging electric light sources with non-electric light sources or vice versa
    • F21S19/005—Combining sunlight and electric light sources for indoor illumination
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/12—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/101—Outdoor lighting of tunnels or the like, e.g. under bridges
    • 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

Definitions

  • the present invention relates to a device for directing light, with a collector for sunlight and with a light guiding device which is designed so that it can guide and distribute the light collected by " the collector.
  • FIG. 1 Facilities of this type are already known. As a rule, they have a light collector which can receive the maximum of light from only one direction. So that such a collector can emit the maximum amount of light to the light guide device throughout the day, the collector can be moved so that it tracks the position of the sun during the day. Such a collector must be mounted so that it can move, with the aid of a drive device. These moving parts of such a device are not only in need of maintenance but also prone to failure and they also increase the cost of these devices.
  • the object of the present invention is to eliminate the disadvantage mentioned and other disadvantages of the prior art.
  • ⁇ EStoU GSKQPIt 1 is a perspective and schematic of a first embodiment of the present device
  • FIG. 3 enlarges the light collector from FIG. 2
  • FIG. 4 greatly enlarges a section from the light collector according to FIG . 3,
  • FIG. 5 shows a top view of a first embodiment of one of the reflectors of the device according to FIG. 3
  • FIG. 6 is a top view of a second embodiment of the reflector of the device according to FIG. 3
  • FIG. 7 shows a side view of an application example for the device according to FIG. 3,
  • Fig. 9 is a perspective and schematic of a second embodiment of the present device.
  • the present device serves to capture light, in particular sunlight, and to direct the captured light, in particular in buildings, tunis and the like.
  • the device shown in Fig. 1 has a device 2 for guiding light, which has a practically vertical main axis A.
  • This device 2 as shown in FIG. 1, comprises a transition element 3 and a device 5 for coupling light out of this device.
  • the transition element 3 goes through the roof 6 or one through the other wall of the building.
  • the transition element 3 has a base body 31, which has the shape of a truncated cone.
  • the larger base area 17 of the transition element 3 lies outside and the smaller base area 18 of the transition element 3 lies within the building.
  • the decoupling device 5 is connected to the smaller base area 18 of the transition element 3.
  • a light channel 4 can be interposed between these components 3 and 5 of the present device.
  • the shape and dimensions of the cross section of the light channel 4 are adapted to the shape and dimensions of the transition device 3 and the coupling device 5.
  • the light channel 4 can be connected to the smaller base area 18 of the transition device 3 with the aid of a flange 7.
  • the larger base area 17 of the transition element 3 is provided with a plate, this plate also bearing the reference number 17.
  • An opening 16 is made in the central region of this cover plate 17.
  • the base body 31 of the transition element 3 shown in FIG. 2 is designed as a truncated pyramid, so that its base surfaces 17 and 18 have a square outline.
  • the base body 31 of such a transition element 3 further comprises side walls, of which only three side walls 312, 313 and 314 can be seen in FIG. 2.
  • the cover plate 17 also has a square outline, wherein it is composed of two sections or partial plates 171 and 172. These partial plates 171 and 172 are at a distance from one another and this distance represents the opening 16 already mentioned.
  • the outer edge of the respective section 171 or 172 of the cover plate 17 is assigned to that edge of the mutually opposite side walls 312 and 313 of the base body 31 , which lies in the area of the larger base area 17.
  • a source 25 of artificial light is accommodated in the interior of the respective corner region of the transition element 3, which is limited only by the relevant edge section 171 or 172 of the plate 17 and by the associated edge part of the side wall 312 or 313.
  • a light collector 1 (FIGS. 2 and 3) is assigned to the larger base area 17 of the transition element 3 lying outside or above the building.
  • This collector 1 is designed as a stationary device.
  • this collector 1 is also designed such that the amount of light emitted by the collector 1 to the device remains approximately the same during a day, regardless of the position of the sun.
  • the base body 15 of the collector 1 has the shape of a section of a hollow body.
  • the base body 15 of the collector 1 has the shape of a section of the jacket of a cylinder.
  • Such a section 15 of the cylinder jacket has longitudinal edges 151 and 152 which run parallel to one another and parallel to the central axis B of the cylinder.
  • the central angle of the cylinder jacket section 15 is 180 degrees or this central angle has a smaller value.
  • the base body 15 of the collector 1 is embedded in the larger base area 17 of the transition element 3.
  • the collector 1 is embedded in the cover plate 17, specifically in such a way that the longitudinal edges 151 and 152 of the base body 15 of the collector 1 adjoin the inner edges of the plate sections 171 and 172.
  • the convex side 153 of the cylinder section 15 faces the light guiding device 2.
  • the collector base body 15 is made of a transparent material, e.g. made of glass or a transparent plastic.
  • the axis B of the cylinder or the direction of the longitudinal edges 151 and 152 of the collector base body 15 coincides with the north-south direction.
  • the collector 1 is arranged such that the axis B of the cylinder and thus also the longitudinal edges 151 and 152 mentioned are inclined with respect to a horizontal plane in such a way that the end part of the collector 1 facing the south is lower than the end part thereof facing the north (not shown).
  • a vertical plane E in which the axis A also lies, intersects the collector base body 15 in two halves 155 and 156, this main plane E being perpendicular to the plane of the drawing sheet.
  • the collector 1 has means 20 for deflecting light, which are designed such that the amount of light emitted by the collector 1 to the other components of this device is independent of the position of the sun during a day remains about the same size.
  • the light deflection means 20 are assigned to the concave surface 154 of the collector base body 15 facing away from the transition element 3 or they protrude from this surface 154.
  • these light deflecting means 20 are divided into two sections 21 and 22, each section 21 and 22 of which lies to one of the sides of the vertical main plane E.
  • the deflection sections 21 and 22 can be arranged symmetrically with respect to the main plane E mentioned.
  • the deflection sections 21 and 22 are at a distance from one another, so that that region 23 of the collector base body 15 which is located between these deflection sections 21 and 22 has a smooth surface.
  • the respective deflection section 21 or 22 includes light-reflecting surfaces which extend parallel to one another and parallel to the longitudinal axis B of the collector base body 15, of which only two of these surfaces 221 and 222 are shown in FIG. 3 in order to explain the mode of operation of the collector 1.
  • the respective deflection section 21 or 22, which includes the deflection surfaces 221, 222 etc., as a whole thus also extends parallel to the longitudinal axis B of the cylinder and therefore also parallel to the surface lines of the collector base body 15.
  • the inclination of the individual reflecting surfaces 221, 222 etc. relative to the main plane E is selected within the respective deflection section 21 or 22 such that the reflecting surfaces 221, 222 etc. of the deflection section 21 or 22 lying on one side of the main plane E. those rays into the Defle nere of the device, which fall from the opposite side of the main plane E on the relevant deflection section 21 or 22.
  • the inclination of the deflecting surfaces 221, 222, etc. can also be selected such that the light rays deflected by them inside the device run as parallel as possible to one another. In this case, the inclination of the deflecting surfaces 221, 222 etc.
  • the angle beta which extends between the main plane E and the reflecting surface 221 or 222, can be 30 to 70 degrees, advantageously 45 degrees.
  • collector 1 To explain the mode of operation of collector 1, it is assumed that east 0 is to the left of main plane E and west W is to the right of it. To demonstrate the mode of operation, the path is observed by only two beams. The path of these rays is only shown very schematically in the drawing.
  • the deflection sections 21 and 22 have groups of ribs 30 which extend parallel to one another and in the direction of the surface lines or the edges 151 and 152 of the base body 15 of the collector 1 at intervals from one another. These ribs 30 protrude from the concave inner surface 154 of the collector base body 15 and they are expediently in one piece with the main part of the collector base body 15.
  • the rib 30 has a triangular cross section, so that it has two flanks 32 and 33.
  • the free ends of these flanks 32 and 33 end at the main part 23 of the collector base body 15.
  • the reflecting surface 222 is assigned to that flank 33 of the rib 30 which faces the interior of the device.
  • Such a deflecting surface 222 can be embodied as a reflective layer applied to the rib flank 33 or the surface itself of the flank 33 can under certain circumstances serve as such a reflective surface 222.
  • flank surface 32 facing away from rib 30 as reflecting surface 222. In such a case, this flank surface 32 can also be provided with a reflective layer (not shown).
  • this decoupling device 5 is connected to the end of the transition element 3 located inside the building.
  • this decoupling device or light emitter 5 comprises two reflectors 35 and 36, which are practically rotationally symmetrical. These reflectors 35 and 36 lie on a common axis of rotation and they are arranged at a distance from one another.
  • the first reflector 35 has a concave base body or casing 37, which in the case shown is composed of individual plates 38 with a trapezoidal outline. These plates 38 are firmly connected to one another via their converging edges. In the central area of the main body 37, an opening 39 is made, which is assigned to the outlet opening of the transition piece or member 3 in such a way that light can pass from the transition piece 3 into the light emitter 5.
  • the shape of the outline and the dimensions of this outline of the opening 39 in the light emitter 5 should correspond to the shape and the dimensions of the outlet opening in the transition piece 3.
  • the cavity in the concave reflector 35 is against the 1 0
  • the second reflector 36 of the light emitter 5 according to FIGS. 1 and 5 has the shape of a cone or a multi-sided pyramid.
  • the jacket of this reflector 36 can consist of triangular plates which are firmly connected to one another via their abutting legs.
  • the apex of this second reflector 36 faces the first reflector 35 and is directed approximately towards the center of the inlet opening 39 in the first reflector 35.
  • the diameter of the base of the convex reflector 36 is smaller than the diameter of the base of the concave reflector 35.
  • Light rays which enter the light emitter through the entry opening 39 in the first reflector 35 reach the second reflector 36.
  • the light rays are thereby thrown against the inner surface of the first reflector 35, from which they are reflected so that they form a light cone 28 which, for example, forms the illuminated surface 29 already mentioned on a floor 27.
  • FIG. 6 shows a light emitter 5 which has the concave reflector 35 described above. Under certain circumstances you can get by with this reflector 35 alone. Or you can assign a matt and translucent plate to the lower mouth or the lower, larger base of this conical or pyramid-shaped and concave reflector 35, which diffuses the light that passes through the inlet opening 39 in the reflector 11
  • FIG. 7 shows a further embodiment of the present device, which comprises two light emitters 5 for illuminating a larger room, for example a hall.
  • the light emitters 5 are at a distance from one another and they are also at the same height above the floor 27.
  • the distance between the light emitters 5 is selected such that the light cones 28 generated by the emitters 5 are in the vicinity of the surfaces 29 to be illuminated partially overlap.
  • a light-guiding device 4 is flanged to the transition element 3, which guides the light captured by the collector 1 downward through the building.
  • a light emitter 40 which is fastened under the ceiling of the interior. This light emitter 40 is connected at one end to the light guide device 4, the light being coupled out into the light emitter 40 with the aid of an inclined mirror 43 in the end part of the light guide device 4.
  • the light emitter 40 is designed as a light guide channel, the base body 41 of which has a square cross section. At one end, this channel 41 is connected to the light guide device 4. The cross section of the channel 41 increases with the 1 2
  • the collector 10 is immovably placed on a building, hill, etc.
  • This collector 10 is designed as a type of mirror.
  • the front of this first mirror 10 is essentially structured as set out in connection with the collector 1 according to FIGS. 1 to 4.
  • This collector 1 according to FIGS. 1 to 4 has some features of the so-called Fressnel lens.
  • the collector 10 according to FIG. 9 is a mirror, the reflecting surfaces of the mirror structured in this way have different angular positions than the reflecting surfaces 221, 222 etc. of the lens 1.
  • This beam of rays 13 passes from the collector 10 to a second mirror 12, which is expediently placed on the roof 6 or similar to a building.
  • the light channel 4 passes through the roof 6 and its end part above the roof 6 carries the second mirror 12.
  • This mirror 12 can be a conventional plane mirror, the inclination of which is set in relation to the colletor 10 such that the beam 13 passes through the light channel 4 runs as parallel as possible to its inner walls. This largely prevents light reflections on the inside of the light channel 4.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Ce dispositif comporte un collecteur (1) destiné à la lumière solaire, ainsi qu'un système de guidage de lumière (2) configuré de manière à permettre la conduction et la répartition de la lumière recueillie par le collecteur. Le collecteur (1) est configuré de telle manière que la quantité de la lumière délivrée sur le système de guidage de lumière (2) demeure approximativement identique indépendamment de la position du soleil au cours d'une journée.
PCT/CH1999/000185 1998-05-04 1999-05-04 Dispositif pour diriger de la lumiere WO1999057484A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH994/98 1998-05-04
CH99498 1998-05-04

Publications (1)

Publication Number Publication Date
WO1999057484A1 true WO1999057484A1 (fr) 1999-11-11

Family

ID=4199982

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1999/000185 WO1999057484A1 (fr) 1998-05-04 1999-05-04 Dispositif pour diriger de la lumiere

Country Status (1)

Country Link
WO (1) WO1999057484A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1501297A (en) * 1974-05-08 1978-02-15 Kaneko K Solar light transmitting system
EP0043081A1 (fr) * 1980-06-27 1982-01-06 Kei Mori Dispositif d'éclairage à lumière diffusée
US5046805A (en) * 1990-07-16 1991-09-10 Simon Jerome H Tapered optical waveguides for uniform energy (light) distribution including energy bridging
DE4225007A1 (de) * 1992-07-29 1994-02-03 Helmut Frank Ottomar P Mueller Oberlicht
WO1994006046A1 (fr) * 1992-09-04 1994-03-17 The Australian National University Groupements de reflecteurs optiques et appareil les utilisant
US5540216A (en) * 1994-11-21 1996-07-30 Rasmusson; James K. Apparatus and method for concentrating radiant energy emanated by a moving energy source
US5648873A (en) * 1996-05-30 1997-07-15 Minnesota Mining And Manufacturing Company Passive solar collector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1501297A (en) * 1974-05-08 1978-02-15 Kaneko K Solar light transmitting system
EP0043081A1 (fr) * 1980-06-27 1982-01-06 Kei Mori Dispositif d'éclairage à lumière diffusée
US5046805A (en) * 1990-07-16 1991-09-10 Simon Jerome H Tapered optical waveguides for uniform energy (light) distribution including energy bridging
DE4225007A1 (de) * 1992-07-29 1994-02-03 Helmut Frank Ottomar P Mueller Oberlicht
WO1994006046A1 (fr) * 1992-09-04 1994-03-17 The Australian National University Groupements de reflecteurs optiques et appareil les utilisant
US5540216A (en) * 1994-11-21 1996-07-30 Rasmusson; James K. Apparatus and method for concentrating radiant energy emanated by a moving energy source
US5648873A (en) * 1996-05-30 1997-07-15 Minnesota Mining And Manufacturing Company Passive solar collector

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