EP1306606A1 - Rohrförmiges Oberlicht - Google Patents

Rohrförmiges Oberlicht Download PDF

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Publication number
EP1306606A1
EP1306606A1 EP02005373A EP02005373A EP1306606A1 EP 1306606 A1 EP1306606 A1 EP 1306606A1 EP 02005373 A EP02005373 A EP 02005373A EP 02005373 A EP02005373 A EP 02005373A EP 1306606 A1 EP1306606 A1 EP 1306606A1
Authority
EP
European Patent Office
Prior art keywords
tubular
mirror
finished
skylight according
tubular skylight
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.)
Granted
Application number
EP02005373A
Other languages
English (en)
French (fr)
Other versions
EP1306606B1 (de
Inventor
Gennaro Bracale
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bracale Gennaro
Original Assignee
Energo Project Srl
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 Energo Project Srl filed Critical Energo Project Srl
Priority to US10/274,195 priority Critical patent/US7185464B2/en
Publication of EP1306606A1 publication Critical patent/EP1306606A1/de
Application granted granted Critical
Publication of EP1306606B1 publication Critical patent/EP1306606B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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)
    • 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
    • E04D2013/034—Daylight conveying tubular skylights
    • E04D2013/0345—Daylight conveying tubular skylights with skylight shafts extending from roof to ceiling

Definitions

  • the present invention relates to a tubular skylight for lighting rooms with natural light.
  • tubular skylights for lighting rooms with natural light are already commercially available which generally have a tubular body with a reflective internal surface which has, at its upper end, a natural light collector assembly, which is generally constituted by an optically transparent dome-like body which internally encloses a mirror arranged so as to optimize sunlight collection.
  • the mirror that is currently used has a prism-like shape and is capable of reflecting rays that arrive from a single direction, since the mirror is arranged proximate to one edge of the tubular element. Moreover, in order to increase the incoming light, prism-like surfaces are formed on the dome which facilitate the redirection of the rays that otherwise would not enter the tubular element.
  • the aim of the present invention is to eliminate the above mentioned drawbacks, by providing a tubular skylight for lighting rooms with natural light that allows to optimize sunlight collection, particularly as regards the rays reflected by the mirror-finished surface.
  • a particular object of the invention is to provide a skylight in which it is possible to increase significantly the quantity of rays diverted by refraction, by way of the possibility to optimize the shape of the prisms with respect to the source of the rays and the shape of the tubular element.
  • Another object of the present invention is to provide a tubular element that can be easily coupled to the light diffuser arranged inside the room, thus optimizing the quantity of rays that is introduced and also simplifying all production work.
  • Another object of the present invention is to provide a tubular skylight which thanks to its particular constructive characteristics is capable of giving the greatest assurances of reliability and safety in use and is further competitive from a merely economical standpoint.
  • a tubular skylight for lighting rooms with natural light which comprises a tubular body with a reflective inner surface which leads into a room and has, at its external end, a natural light collector assembly and, at its internal end, a light diffuser, characterized in that said collector assembly comprises, inside an optically transparent dome arranged so as to close said tubular element, a mirror-finished body which is substantially shaped like a cylindrical band with mirror-finished inner and outer surfaces.
  • the tubular skylight for lighting rooms with natural light comprises a tubular body 2 with a reflective internal surface, which is provided so as to lead, at its lower end, into the room to be lit and has, at its other end or external end, a collector assembly generally designated by the reference numeral 3.
  • the collector assembly has an optically transparent dome 4, which is arranged so as to close the upper end of the tubular element 2 and internally encloses a mirror-finished body 10, which is advantageously formed by a cylindrical band in which the inner surface 10a and the outer surface 10b are both mirror-finished.
  • the body 10 has an axial width that can vary gradually from a point of minimum width to a point of maximum width, which are arranged at right angles to each other.
  • the mirror-finished body 10 is supported coaxially inside the upper end of the tubular body 2 by means of brackets 11 which are provided with spokes 12 connected to the rim of the tubular element and have a central portion 13 for connection to the mirror-finished body 10.
  • the mirror-finished body is capable of reflecting toward the inner wall of the tubular body 2 rays that arrive from all directions and with any inclination.
  • the shape in which the end is in practice cut obliquely owing to the width that can vary from a maximum to a minimum that are arranged diametrically optimizes light ray collection by arranging the internal surface of the wider point so that it faces south.
  • a refracting body 20 which is constituted by a cylindrical body with an outer surface 21 formed by prisms, of the Fresnel-lens type, designed to redirect the incoming rays in a more favorable direction.
  • the refracting body 20 is applied coaxially externally with respect to the mirror-finished body 10 and is advantageously supported by the spokes 12 of the brackets 11, which have notches 22 for the coupling of the cylindrical body.
  • the refracting body might also be used without the presence of the mirror and can be obtained by means of prisms that have particular shapes. Moreover, the refracting body, when used in combination with the mirror, can have a missing circumferential portion.
  • the collector assembly can have an annular refracting body 50, which has a microcorrugated outer surface obtained by means of prisms that are mutually parallel and have a variable apex angle.
  • the annular body has a smooth inner surface in order to be substantially reflective for the light that is incident thereon.
  • the annular refracting body can have a discontinuity 51 of a few tens of degrees in the south-facing part.
  • the refracting body 50 can be supported by the bend 52 arranged at the end of a hook-like element 53 that supports the tubular body 2, engaging in slots 54 formed therein. At the other end, the hook-like element 53 forms an engagement bend 55, which overlaps the supporting structure 56.
  • an upper gasket 57 which is superimposed on the supporting structure 56 and acts as a support for recesses 58 formed on the rim 59 of the dome 4 in order to provide circumferential slots for the passage of any condensation, which flows from the internal surface of the dome toward the peripheral region of the dome, entering the interspace 60 formed between the rim 59 and the supporting structure 56.
  • the interspace 60 is closed by a brush-type gasket 61, which facilitates outward drainage of condensation.
  • the tubular element In a downward region, the tubular element is connected to a diffuser, generally designated by the reference numeral 30, which has a frame-like body 31 with flanges 32 that allows connection to the roof or ceiling by passing within the roof members.
  • a diffuser generally designated by the reference numeral 30, which has a frame-like body 31 with flanges 32 that allows connection to the roof or ceiling by passing within the roof members.
  • the flange 32 can have a rim 33 with rounded corners, which has the same perimetric extension with respect to the circumference of the tubular element and can thus mate, assuming a square shape as shown schematically in Figure 1.
  • a conventional box-like body 35 with a circular inlet 36 for the connection of the tubular element it is possible to provide a conventional box-like body 35 with a circular inlet 36 for the connection of the tubular element.
  • the frame-like body 31 supports a plate 40, made of translucent material, which acts as a trimming element and is supported by conventional locking elements 41 accommodated in the perimetric profile 42 of the plate of opalescent material in order to allow quick and easy coupling and uncoupling of the plate with respect to the frame-like body 31.
  • a tubular skylight is provided in which the adoption of a mirror-finished body having a particular shape allows to increase significantly the quantity of collected and reflected rays, both by means of the increase in surface and by way of the fact that the mirror-finished body has mirror-finished surfaces on its inner face and on its outer face.
  • a refracting body such as the cylindrical element separated from the dome allows first of all to provide prism-like lenses with an optimum angle and secondly allows to simplify considerably the steps of production, since the prism-like cylindrical body can be obtained simply with a band-like element that is folded during installation.
  • the materials used, as well as the contingent shapes and dimensions may be any according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Resistance Heating (AREA)
  • Insulators (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Discharge Lamp (AREA)
EP02005373A 2001-10-29 2002-03-15 Rohrförmiges Oberlicht Expired - Lifetime EP1306606B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/274,195 US7185464B2 (en) 2001-10-29 2002-10-21 Tubular skylight for lighting rooms with natural light

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI012272 2001-10-29
IT2001MI002272A ITMI20012272A1 (it) 2001-10-29 2001-10-29 Lucernario tubolare per l'illuminazione di ambienti con luce naturale

Publications (2)

Publication Number Publication Date
EP1306606A1 true EP1306606A1 (de) 2003-05-02
EP1306606B1 EP1306606B1 (de) 2004-11-17

Family

ID=11448556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02005373A Expired - Lifetime EP1306606B1 (de) 2001-10-29 2002-03-15 Rohrförmiges Oberlicht

Country Status (5)

Country Link
EP (1) EP1306606B1 (de)
AT (1) ATE282791T1 (de)
DE (1) DE60201958T2 (de)
ES (1) ES2231597T3 (de)
IT (1) ITMI20012272A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2400885A (en) * 2003-04-22 2004-10-27 Monodraught Ltd Lighting apparatus
WO2006033090A1 (en) 2004-09-21 2006-03-30 Dublin Institute Of Technology Multi-aperture light pipe
FR2924789A1 (fr) * 2007-12-07 2009-06-12 Ecole Louis De Broglie Dispositif d'eclairage permettant de capter la lumiere, de la guider, et de la focaliser
WO2011004278A1 (en) 2009-07-10 2011-01-13 Gennaro Bracale Tubular skylight
NL2007670C2 (nl) * 2011-10-28 2013-05-06 Dnn Groep B V Inrichting voor het afbuigen van daglicht, lichtombuigorgaan en werkwijze voor het plaatsen daarvan.
US9127823B2 (en) 2011-11-30 2015-09-08 Solatube International, Inc. Daylight collection systems and methods
US9816675B2 (en) 2015-03-18 2017-11-14 Solatube International, Inc. Daylight collectors with diffuse and direct light collection
US9816676B2 (en) 2015-03-18 2017-11-14 Solatube International, Inc. Daylight collectors with diffuse and direct light collection
US9921397B2 (en) 2012-12-11 2018-03-20 Solatube International, Inc. Daylight collectors with thermal control
DE202017006809U1 (de) 2016-11-03 2018-06-20 Basf Se Tageslichtelement
IT202100027995A1 (it) * 2021-11-03 2023-05-03 Solarspot Int S R L Lucernario tubolare

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8568011B2 (en) 2009-08-20 2013-10-29 Solatube International, Inc. Daylighting devices with auxiliary lighting system and light turning features
US8601757B2 (en) 2010-05-27 2013-12-10 Solatube International, Inc. Thermally insulating fenestration devices and methods
US8982467B2 (en) 2012-12-11 2015-03-17 Solatube International, Inc. High aspect ratio daylight collectors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099622A (en) * 1986-10-20 1992-03-31 Continuum Developments Pty Limited Skylight
US5648873A (en) * 1996-05-30 1997-07-15 Minnesota Mining And Manufacturing Company Passive solar collector
JPH112779A (ja) * 1997-04-28 1999-01-06 Sanyo Electric Co Ltd 太陽光採光装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099622A (en) * 1986-10-20 1992-03-31 Continuum Developments Pty Limited Skylight
US5648873A (en) * 1996-05-30 1997-07-15 Minnesota Mining And Manufacturing Company Passive solar collector
JPH112779A (ja) * 1997-04-28 1999-01-06 Sanyo Electric Co Ltd 太陽光採光装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 04 30 April 1999 (1999-04-30) *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2400885A (en) * 2003-04-22 2004-10-27 Monodraught Ltd Lighting apparatus
GB2400885B (en) * 2003-04-22 2006-08-16 Monodraught Ltd Lighting apparatus
WO2006033090A1 (en) 2004-09-21 2006-03-30 Dublin Institute Of Technology Multi-aperture light pipe
FR2924789A1 (fr) * 2007-12-07 2009-06-12 Ecole Louis De Broglie Dispositif d'eclairage permettant de capter la lumiere, de la guider, et de la focaliser
WO2011004278A1 (en) 2009-07-10 2011-01-13 Gennaro Bracale Tubular skylight
NL2007670C2 (nl) * 2011-10-28 2013-05-06 Dnn Groep B V Inrichting voor het afbuigen van daglicht, lichtombuigorgaan en werkwijze voor het plaatsen daarvan.
US9127823B2 (en) 2011-11-30 2015-09-08 Solatube International, Inc. Daylight collection systems and methods
US9921397B2 (en) 2012-12-11 2018-03-20 Solatube International, Inc. Daylight collectors with thermal control
US9816675B2 (en) 2015-03-18 2017-11-14 Solatube International, Inc. Daylight collectors with diffuse and direct light collection
US9816676B2 (en) 2015-03-18 2017-11-14 Solatube International, Inc. Daylight collectors with diffuse and direct light collection
DE202017006809U1 (de) 2016-11-03 2018-06-20 Basf Se Tageslichtelement
US10718479B2 (en) 2016-11-03 2020-07-21 Basf Se Daylighting illumination system
US10794557B2 (en) 2016-11-03 2020-10-06 Basf Se Daylighting panel
US11209142B2 (en) 2016-11-03 2021-12-28 Skynative UG Daylighting illumination system
IT202100027995A1 (it) * 2021-11-03 2023-05-03 Solarspot Int S R L Lucernario tubolare

Also Published As

Publication number Publication date
ES2231597T3 (es) 2005-05-16
ATE282791T1 (de) 2004-12-15
DE60201958D1 (de) 2004-12-23
DE60201958T2 (de) 2005-11-24
EP1306606B1 (de) 2004-11-17
ITMI20012272A1 (it) 2003-04-29

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