EP2639497A1 - Reflektoranordnung zur Verwendung in einer Leuchte - Google Patents

Reflektoranordnung zur Verwendung in einer Leuchte Download PDF

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Publication number
EP2639497A1
EP2639497A1 EP12290085.5A EP12290085A EP2639497A1 EP 2639497 A1 EP2639497 A1 EP 2639497A1 EP 12290085 A EP12290085 A EP 12290085A EP 2639497 A1 EP2639497 A1 EP 2639497A1
Authority
EP
European Patent Office
Prior art keywords
reflector
segments
dome shaped
periphery
reflector segments
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
EP12290085.5A
Other languages
English (en)
French (fr)
Other versions
EP2639497B1 (de
Inventor
Jean-Paul Rami
Florian Rocard
Loic Boinet
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.)
ZG Lighting France SAS
Original Assignee
Thorn Europhane SA
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 Thorn Europhane SA filed Critical Thorn Europhane SA
Priority to EP12290085.5A priority Critical patent/EP2639497B1/de
Priority to PCT/EP2013/054873 priority patent/WO2013135626A1/en
Priority to RU2014138618A priority patent/RU2630895C2/ru
Priority to CN201380022568.7A priority patent/CN104302972B/zh
Publication of EP2639497A1 publication Critical patent/EP2639497A1/de
Application granted granted Critical
Publication of EP2639497B1 publication Critical patent/EP2639497B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/002—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for interchangeability, i.e. component parts being especially adapted to be replaced by another part with the same or a different function
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/007—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for shipment or storage
    • 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
    • F21V7/10—Construction
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • 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
    • F21W2131/105—Outdoor lighting of arenas or the like
    • 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
    • F21W2131/107—Outdoor lighting of the exterior of buildings

Definitions

  • the present invention relates to a reflector assembly for use in a luminaire provided to brightly illuminate a target area wherein said luminaire can be used for floodlight, sport and area lighting applications. Further, the present invention is directed to a method for adapting the light emitting characteristics of a reflector assembly.
  • Lighting devices with incandescent or arc discharge lamps are routinely used to illuminate the exterior areas of commercial businesses for purposes of enhancing the appearance of the business at night and for promoting interest in the goods and services of the business by actual and potential customers.
  • Restaurants and shopping malls represent just a few of the business types for which exterior luminaires play an important role in marketing and facilitating product sales.
  • other facilities such as parking areas, outdoor sports stadiums or indoor arenas usually require intensive illumination of specific areas, e.g. in order to provide lighting that allows a sport to take place safely and provide good viewing conditions, both in visibility of the sports action and comfort of the audience.
  • reflectors are commonly used to reflect light emitted from at least one light source.
  • the reflectors have a dome shaped configuration and focus the reflected light in desired patterns and with desired levels of intensity so that energy costs are minimized while maximum lighting is achieved.
  • Reflectors also serve to protect the light source, with some reflectors providing a protective enclosure to protect the light source from weather, dust, moisture, and the like.
  • a reflector is usually the only - or at least the most relevant - optical element of a luminaire which is available for shaping the light emitted into a desired pattern. Since depending on the application a luminaire is used for often a very specific light distribution with respect to the beam aperture and the peak intensity is desired, floodlighting systems are commonly offered with a large variety of reflectors which then are specifically selected to meet the requirements of the application.
  • the inventive solution is based on the concept of using a reflector which includes multiple segments assembled to each other in order to finally form the reflective surface.
  • the emission of the luminaire can be easily and efficiently adapted to meet the lighting requirements of multiple applications.
  • the "construction kit" solution proposed in accordance with the present invention allows manufacturing reflectors having different emission characteristics by simply selecting a specific combination of reflector segments with appropriate reflection characteristics. Even more, the resulting reflectors - though they emit light in different ways - always have identical shapes and thus can be used with identical luminaire housings and/or supporting structures and preferably also with identical light sources. Accordingly, luminaires for floodlighting applications can be obtained with a wide variety of light emission characteristics and thus suitable for different applications at reasonable costs.
  • a reflector assembly for use in a luminaire in particular for floodlight, sport and area lighting applications wherein said reflector assembly forms a dome shaped structure for accommodating at least one light source therein and emitting the light of said light source via an opening of said dome shaped structure wherein said reflector comprises a plurality of reflector segments which are arranged to form together the dome shaped structure and wherein at least two of said reflector segments have different reflection characteristics.
  • the reflector segments are adapted to form a continuously shaped reflective surface at the inner surface of the dome shaped structure.
  • the reflector segments can have a shape and means to connect to a neighboring segment in such a way that a continuous and smooth transition between both segments is obtained. In this way, the resulting reflector assembly is almost identical to a one-piece reflector regarding the quality of the reflective surface but obviously can be manufactured in a much easier and more cost efficient way.
  • the reflector segments comprise one central reflector segment and at least two periphery reflector segments which extend from the central reflector segment to the light emitting opening of the dome shaped structure.
  • the central reflector segment thus forms the basic element of the inventive reflector assembly and provides a reflective surface which is located behind the light source.
  • the periphery reflector segments form reflective surfaces at the sides and in front of the light source and are mainly responsible for shaping the emitted light into the desired form.
  • the periphery reflector segments substantially have an identical shape. This solution not only allows reducing the number of different parts to a minimum but also facilitates the assembly of the final reflector structure.
  • said reflector segments comprise one central reflector segment and four periphery reflector segments wherein in particular two opposed periphery reflector segments have identical reflection characteristics.
  • This characteristic can be obtained by providing two opposed periphery reflector segments which form lateral reflective surfaces and are identical with respect to their reflection characteristics.
  • the other periphery reflector segments form a top reflective surface and a bottom reflective surface and are individually selected to finally shape the emitted light beam.
  • the reflection characteristics of these two further segments can differ from each other but also from the reflection characteristics of the two lateral segments.
  • said reflector segments are adapted to form at least one opening in the reflective surface for inserting or holding a light source.
  • the longitudinal light source is preferably located within the reflector such that it extends through a bottom portion of the dome structure. Two openings arranged in this bottom portion of the reflector allow the light source to extend with their ends to lamp holders which are provided in the surrounding area of the reflector.
  • a holding structure for holding the light source can extend through the opening(s) in the interior of the reflector dome to safely hold the light source there.
  • the inventive concept is based on the idea of using a reflector which includes multiple segments assembled to each other in order to finally form the reflective surface.
  • the reflector 1 consists of an assembly of five different parts or segments 2-5 made preferably in high reflective aluminum.
  • the reflector 1 comprises a center portion formed by one central reflector segment 2 and a surrounding reflective surface extending from the center portion to the opening of the reflector 1 which is formed by four periphery reflector segments 3-5.
  • these reflector segments 2-5 provide a continuous concave shape similar to a conventional one-piece reflector.
  • a sixth reflector segment 6 can be added which extends through the interior of the dome structure and forms a deflector. This optional deflector segment 6 is for example used in case a strong asymmetric light distribution is desired.
  • the four periphery reflector segments 3-5 have an almost identical shape wherein one reflector segment is shown in isolated form in Figures 4 to 7 . It forms a quarter of the rotational dome structure and thus shows a rotational symmetry with respect to an axis I extending through the center of the reflector assembly perpendicular to the reflector opening (see Figure 2 ). In this way, the four periphery reflector segments 3-5 form in the finally assembled form a smooth and continuous reflective surface for distributing the light emitted by the light source 100 in a desired manner.
  • the periphery reflector segments 3-5 have an almost identical shape, it should be clarified that this explanation refers to the general form of the reflective surface of the segments.
  • the reflector segments 3-5 can slightly differ from each other in the portion adjacent to the central reflector segment 2.
  • two of the periphery reflector segments are at their sides adjacent to the central segment 2 provided with a recess 7 (see Figures 4 to 6 ) having approximately the form of a semi-circle.
  • these semi-circular recesses 7 are cut into the reflector segments after their production requiring only one single die-cast form for manufacturing the periphery reflector segments.
  • the four periphery reflector segments have an - almost - identical shape, they are usually made from different materials and thus have different optical characteristics. By combining reflector segments of different materials, the light distribution and intensity finally obtained can be adapted in order to meet the requirements of a floodlighting application.
  • connection element 10 which extends over the entire connection region at the outer surface of the two segments 3-5.
  • the connection elements 10 ensure that the reflector segments 3-5 are secured in the adjacent position and that no gaps occur between two segments 3-5. In this way, the desired smooth and continuous reflective surface is obtained.
  • an end plate 12 is provided having in the shown example a quadratic outer shape and a circular opening corresponding to the opening of the dome formed by the peripheral reflector segments 3-5.
  • This end plate 12 stabilizes the dome structure and is connected to the reflector segments 3-5 as well as to end portions of the connecting elements 10.
  • the peripheral reflector segments 3-5 preferably have flanged end portions 9 allowing to fix the reflector segments 3-5 to the end plate 12 by bolts or screws 13.
  • the central reflector segment 2 is covered by a bottom cap 15 stabilizing this bottom area of the reflector 1 by slightly extending with a flanged end portion 16 over the end regions of the peripheral reflector segments 3-5.
  • the flanged end portion 16 is also adapted for a connection with the four connecting elements 10 by using further bolts or screws 13 and comprises two lateral openings 17 aligned with the openings 8 in the reflector dome.
  • the finally obtained reflector 1 is shown in the assembled form in Figures 10 and 11 and exhibits stability sufficient for its further use in floodlighting luminaires as well as an excellent optical reflective surface. It can be finally inserted in a casing or holding structure to form a floodlighting luminaire 110 as shown in Figure 12 .
  • the dome structure of the reflector could be formed by alternatively shaped reflector segments and it is in particular not necessary that four peripheral reflector segments are used which have an identical shape. It would for example also be possible to use only two peripheral reflector segments or to use even more segments which have different shapes but can again be assembled to the desired reflector shape.
  • the resulting reflector structure could differ from the one shown in the figures and could for example be more similar to truncated pyramid or the like.
  • the possibilities to adapt the optical characteristics of the resulting reflector are increased in case a higher number of reflector segments is used to form the reflector dome.
  • assembling the segments to the final structure is then more complicate and care should be taken that no gaps occur which could significantly impair the optical characteristics of the reflector.
  • the shown embodiment provides a perfect compromise since the effort to manufacture the reflector is still low while the optical characteristics of the reflector can nevertheless be adapted in a relatively wide range.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP12290085.5A 2012-03-12 2012-03-12 Reflektoranordnung zur Verwendung in einer Leuchte Active EP2639497B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12290085.5A EP2639497B1 (de) 2012-03-12 2012-03-12 Reflektoranordnung zur Verwendung in einer Leuchte
PCT/EP2013/054873 WO2013135626A1 (en) 2012-03-12 2013-03-11 Reflector assembly for use in a luminaire
RU2014138618A RU2630895C2 (ru) 2012-03-12 2013-03-11 Отражатель в сборе для использования в осветительном приборе
CN201380022568.7A CN104302972B (zh) 2012-03-12 2013-03-11 一种用于照明装置中的反光器组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12290085.5A EP2639497B1 (de) 2012-03-12 2012-03-12 Reflektoranordnung zur Verwendung in einer Leuchte

Publications (2)

Publication Number Publication Date
EP2639497A1 true EP2639497A1 (de) 2013-09-18
EP2639497B1 EP2639497B1 (de) 2019-11-13

Family

ID=47884317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12290085.5A Active EP2639497B1 (de) 2012-03-12 2012-03-12 Reflektoranordnung zur Verwendung in einer Leuchte

Country Status (4)

Country Link
EP (1) EP2639497B1 (de)
CN (1) CN104302972B (de)
RU (1) RU2630895C2 (de)
WO (1) WO2013135626A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2612190B (en) * 2021-10-05 2025-01-08 Karle Stefan Lighting device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US707982A (en) * 1902-06-02 1902-08-26 Frank J Mayhew Head or search light.
US5287259A (en) * 1991-11-27 1994-02-15 Lorin Industries, Inc. Light reflector assembly
US5971569A (en) * 1997-06-11 1999-10-26 Steris Corporation Surgical light with stacked elliptical reflector
US6152583A (en) * 1998-02-20 2000-11-28 Genlyte Thomas Group Llc Adjustable luminaire having pivotable lamp and reflector assembly
US6203176B1 (en) * 1998-12-14 2001-03-20 Musco Corporation Increased efficiency light fixture, reflector, and method
US6382803B1 (en) * 2000-05-02 2002-05-07 Nsi Enterprises, Inc. Faceted reflector assembly
JP2007250231A (ja) * 2006-03-14 2007-09-27 Mitsubishi Electric Corp 照明器具
US20090268456A1 (en) * 2008-04-28 2009-10-29 Auer Lighting Gmbh High performance luminaire with a lamp and a reflector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402327A (en) * 1992-01-14 1995-03-28 Musco Corporation Means and method for highly controllable lighting
CN100545506C (zh) * 2004-10-29 2009-09-30 文星日 照明灯具
CN2747463Y (zh) * 2004-10-29 2005-12-21 文星日 照明用反射板
CN101142441B (zh) * 2005-01-18 2012-07-04 马斯科公司 将场所外侧光重新指向场所的改进的反射面
RU99104U1 (ru) * 2010-06-18 2010-11-10 Общество с ограниченной ответственностью "РоСАТ ЦЕНТР" Модульный светодиодный прожектор

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US707982A (en) * 1902-06-02 1902-08-26 Frank J Mayhew Head or search light.
US5287259A (en) * 1991-11-27 1994-02-15 Lorin Industries, Inc. Light reflector assembly
US5971569A (en) * 1997-06-11 1999-10-26 Steris Corporation Surgical light with stacked elliptical reflector
US6152583A (en) * 1998-02-20 2000-11-28 Genlyte Thomas Group Llc Adjustable luminaire having pivotable lamp and reflector assembly
US6203176B1 (en) * 1998-12-14 2001-03-20 Musco Corporation Increased efficiency light fixture, reflector, and method
US6382803B1 (en) * 2000-05-02 2002-05-07 Nsi Enterprises, Inc. Faceted reflector assembly
JP2007250231A (ja) * 2006-03-14 2007-09-27 Mitsubishi Electric Corp 照明器具
US20090268456A1 (en) * 2008-04-28 2009-10-29 Auer Lighting Gmbh High performance luminaire with a lamp and a reflector

Also Published As

Publication number Publication date
CN104302972A (zh) 2015-01-21
RU2014138618A (ru) 2016-05-10
WO2013135626A1 (en) 2013-09-19
CN104302972B (zh) 2017-05-24
RU2630895C2 (ru) 2017-09-14
EP2639497B1 (de) 2019-11-13

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