EP2343477A1 - Réflecteur de lampadaire - Google Patents

Réflecteur de lampadaire Download PDF

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Publication number
EP2343477A1
EP2343477A1 EP10150180A EP10150180A EP2343477A1 EP 2343477 A1 EP2343477 A1 EP 2343477A1 EP 10150180 A EP10150180 A EP 10150180A EP 10150180 A EP10150180 A EP 10150180A EP 2343477 A1 EP2343477 A1 EP 2343477A1
Authority
EP
European Patent Office
Prior art keywords
reflector
luminaire
opening
light exit
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.)
Withdrawn
Application number
EP10150180A
Other languages
German (de)
English (en)
Inventor
Ioannis Laftsidis
Andreas Möcking
Ulrich Danielsmeyer
Dieter Hackfort
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.)
Jordan Reflektoren GmbH and Co KG
Original Assignee
Jordan Reflektoren GmbH and Co KG
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 Jordan Reflektoren GmbH and Co KG filed Critical Jordan Reflektoren GmbH and Co KG
Priority to EP10150180A priority Critical patent/EP2343477A1/fr
Publication of EP2343477A1 publication Critical patent/EP2343477A1/fr
Withdrawn legal-status Critical Current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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • 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
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F21V11/12—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures of slot type

Definitions

  • the present invention relates according to the preamble of claim 1, a luminaire reflector consisting of a hollow, substantially rotationally symmetrical parabolic reflector body with an inner reflection surface and increasing in the direction of a longitudinal central axis of a rear, smaller illuminant opening to a front, larger light exit opening internal cross-section.
  • a light source is at least partially introduced through the bulb opening into the hollow, parabolapttiketcn reflector body.
  • the light emanating from the respective luminous means is reflected and directed by the inner reflection surface so that it is emitted from the front light exit opening.
  • the publication DE 20 2009 004 003 U1 describes a so-called "round reflector", which consists of a blank made of aluminum sheet, which is anodized on the reflective side, projecting from an annular central part of the Ronde star-shaped strip-like fingers which are bent into a reflector shape.
  • the fingers can be connected to one another at the end in order to fix the desired reflector shape.
  • the resulting reflector has no, at least no optimal, parabolic shape.
  • the present invention is based on the object to provide a luminaire reflector of the generic type described above, which is simple and inexpensive to produce, and also ensures a high reflection efficiency with an optimal reflector shape.
  • the invention provides that the substantially parabolic reflector body is divided at a circumferential location between the illuminant opening and the light exit opening and distributed over several distributed over the circumference, in each case only partially so between the illuminant opening and the light exit opening extending slots is divided into a plurality of reflector segments in that the reflector segments are connected to one another in pairs laterally via remaining, unslotted connection areas.
  • the reflector body may advantageously be formed from a one-piece blank made from a single-sided, highly light-reflecting flat material, preferably a sheet metal material, the blank originally lying in one plane strip-shaped and connected in the radial direction over the lateral connecting portions reflector segments has a total of approximately C-shaped surface shape. From this flat shape of the blank can then be formed in a simple and economical manner, in particular in a rolling, thermoforming and / or embossing process of the reflector body so that it receives an overall optimal parabolic shape, which also - apart from the very narrow, linear Slots - is essentially rotationally symmetric.
  • the reflector body therefore preferably consists of a sheet metal material that is at least highly reflective on the inside, in particular of a reflective coated aluminum sheet.
  • a particularly suitable material is available under the name "MIRO" (registered trademark of the company ALANOD Aluminum-Veredlung GmbH and Co. KG).
  • the sheet material may have a smooth, high-gloss surface or a faceted profiled, but also high-gloss surface.
  • the reflector body according to the invention has a reduced mechanical stability due to its multiple slotted design
  • This additional reflector support practically forms a stable "cover” (reflector cover), for which purpose it preferably has a closely parabolic design adapted to the reflector body.
  • the reflector carrier is preferably one-piece and rotationally symmetrical from an originally flat sheet metal sheet, in particular of an aluminum sheet, formed (pressed).
  • the reflector support may be treated, especially in the region of its outer surface for an attractive design, such as painted, sandblasted and / or z. B. coated metal.
  • an attractive design such as painted, sandblasted and / or z. B. coated metal.
  • the reflector is advantageously suitable for any luminous means, both for such luminous means, such as in particular LED's, which emit a relatively low heat during operation, but also for such lamps, such as in particular high-pressure discharge lamps, which generate a higher temperature during operation. Since the temperature is only partially passed on to the outer reflector support, this remains - relatively cool compared to a one-piece reflector, which is why its outer surface designed much more variable, for example, can be painted without problems, without it in operation to thermally induced color changes or even damage can occur.
  • FIGS. 1 . 6 and 8th an inventive luminaire reflector 1 with a hollow, substantially rotationally symmetrical parabolic reflector body 2 in a preferred arrangement within an outer reflector support 4 is shown.
  • the Fig. 2 shows the reflector body 2 according to the invention separately in side view, and in the FIGS. 9 and 10 two versions of the reflector support 4 are separately illustrated.
  • the reflector body 2 has an inner reflection surface 6 (cf. Fig. 5 ) and an inner cross section, which increases according to the parabolic shape in the direction of a longitudinal center axis 8 from a rear, smaller illuminant opening 10 to a front, larger light exit opening 12.
  • a non-illustrated illuminant can be introduced at least in some areas into a focal point region of the reflector body 2.
  • the light emitted by the respective light source is from the reflection surface 6 is reflected so that it is bundled or diffused emitted from the light exit opening 12.
  • the reflector segments 16 are each formed strip-shaped with a first, narrower end portion 20 on the side of the bulb opening 10 and a second, wider end portion 22 on the side of the light exit opening 12.
  • the reflector body 2 of a one-piece blank 24 - see 3 and 4 - Be formed of a one-sided, ie on the reflection surface 6 forming side, refined, highly light-reflecting sheet metal material.
  • This one-piece blank 24 has in its original, lying in a plane configuration with the strip-shaped and in radial alignment via the lateral connecting portions 18 connected reflector segments 16 a total of about C-shaped surface shape.
  • the parabolic shape of the reflector body 2 can be formed in particular in a rolling, deep-drawing and / or embossing process.
  • each reflector segment 16 is deformed by curvature (curvature) in three surface coordinate directions three-dimensional.
  • the reflector segments 16 according to 3 and 4 in the plane state of the sheet metal blank 24 have slightly convexly curved extending side edges 26, wherein the curvature in adaptation to the desired Parabolic shape is designed so that in the finished molded state, a minimization of the width of the slots 14 is achieved.
  • the unslotted connection regions 18 are arranged approximately centrally between the illuminant opening 10 and the light exit opening 12, so that the end sections 20, 22 of each reflector segment 16 are formed as free, laterally divided by the slots 14 ends.
  • the reflector segments 16 of the originally flat blank 24 are arranged in a circular arc, in particular approximately semicircular row, wherein the two last reflector segments 16 a and 16 b are integrally connected only at one side edge with the adjacent reflector segment 16.
  • These two end reflector segments 16 a, b are completely separated axially in the finished molded state of the reflector body 2. They can - because of the preferred arrangement of the reflector body 2 in the reflector support 4 - in the embodiment according to Fig. 3 be adjacent in the finished molded state without connection via a continuous slot.
  • these two reflector segments 16a, b connected by connecting means 28 rarium each other.
  • connecting means 28 rarium each other.
  • the connecting means 28 are formed as a tab connection, wherein the one reflector segment 16a, for example, two tabs 30 which are guided and deformed by a respective slot opening 32 of the other reflector segment 16b, for example, bent and / or rotated.
  • the number of reflector segments 16, in which the reflector body 2 is divided depends on the size of the reflector body 2 and on the respective lighting technical, application-specific task. So it can be any number. In the illustrated preferred embodiments, the reflector body 2 consists of fifteen reflector segments 16.
  • the inner reflection surface 6 of the reflector body 2 may be formed smoothly mirrored or faceted structured.
  • the structure depends on the desired reflection properties.
  • the slots 14 may still be significantly narrower in practice.
  • the width of the slots 14 in the molded state of the reflector body 2 is in the range of only 0 to 0.3 mm.
  • the reflector carrier 4 which is preferably additionally provided is concerned, it has a correspondingly parabolic, only slightly larger configuration adapted to the reflector body 2 for fitting the reflector body 2.
  • the reflector body 2 is preferably fastened by suitable means within the reflector support 4.
  • the reflector support 4 is preferably in one piece and rotationally symmetrical from an originally flat sheet metal sheet, in particular from an aluminum sheet, transformed.
  • the sheet metal blank is rotated and pressed onto a reflector inner contour exhibiting mold.
  • the reflector support 4 may have an axially protruding annular collar 38 in the region of the illuminant opening 10. This results in the possibility according to Fig. 1 to guide the end webs 34 of the reflector segments 16 of the reflector body 2 through the annular collar 38 and for fixing in the direction of in Fig. 1 drawn arrows 40 by at least 90 ° or 180 ° to bend outward.
  • the reflector body 2 but also be held in the reflector support 4, that the end webs 34 are arranged freely within the reflector support 4.
  • the reflector body 2 is attached via the front web portions 36.
  • the reflector support 4 in the region of the light exit opening 12 of the reflector body 2 holding means 42 for the reflector body 2 and preferably also for certain additional components, such as in particular the light exit opening 12 covering the protective plate 44 and / or other intentions.
  • the holding means 42 are formed by a receiving flange, which consists of a radially outwardly extending flange portion 46 and an adjoining, axially projecting peripheral edge 48.
  • the protective disk 44 can be fastened directly via a bayonet connection. This can according to Fig. 7 the protective disc 44 on its outer circumference radial bayonet approaches 50 which can be inserted into corresponding bayonet recesses 52 of the peripheral edge 48 and secured by rotation.
  • any other additional parts such as Abblendetti, filter discs, caps, screens or the like, are attached.
  • the reflector body 2 is permanently attached together with the protective plate 44 by the peripheral edge 48 of the reflector support 4 is crimped inwards.
  • the reflector support 4 may be formed with an outer surface 54 treated for an appealing design, for example painted, sandblasted and / or otherwise coated.
  • the quality of the inner surface of the reflector support 4 is advantageously irrelevant, because it is not visible after the onset of the reflector body 2.
  • the invention is not limited to the illustrated and described embodiments, but also includes all the same in the context of the invention embodiments. Furthermore, the invention has hitherto not been limited to the feature combination defined in claim 1, but may also be defined by any other combination of specific features of all individually disclosed individual features. This means that in principle virtually every individual feature of claim 1 can be omitted or replaced by at least one individual feature disclosed elsewhere in the application. In this respect, the claim 1 is to be understood only as a first formulation attempt for an invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP10150180A 2010-01-06 2010-01-06 Réflecteur de lampadaire Withdrawn EP2343477A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10150180A EP2343477A1 (fr) 2010-01-06 2010-01-06 Réflecteur de lampadaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10150180A EP2343477A1 (fr) 2010-01-06 2010-01-06 Réflecteur de lampadaire

Publications (1)

Publication Number Publication Date
EP2343477A1 true EP2343477A1 (fr) 2011-07-13

Family

ID=42111807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10150180A Withdrawn EP2343477A1 (fr) 2010-01-06 2010-01-06 Réflecteur de lampadaire

Country Status (1)

Country Link
EP (1) EP2343477A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012108719A1 (de) 2012-09-17 2014-03-20 Alanod Gmbh & Co. Kg Reflektor, Beleuchtungskörper mit einem derartigen Reflektor und Verwendung eines Basismaterials zu dessen Herstellung
IT201800003408A1 (it) * 2018-03-09 2019-09-09 Reggiani Illuminazione Riflettore per dispositivi di illuminazione

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413462A (en) * 1966-09-29 1968-11-26 Spero Electric Corp Lighting fixture reflector surfacing device
US4028542A (en) * 1974-09-11 1977-06-07 Esquire, Inc. Faceted parabolic-type reflector system
GB1504689A (en) * 1975-04-18 1978-03-22 Oram J Lighting devices
US6152579A (en) * 1998-12-14 2000-11-28 Lsi Industries, Inc. Self-standing reflector for a luminaire and method of making same
DE102004006003A1 (de) * 2004-02-06 2005-08-25 Zumtobel Staff Gmbh Ringförmiger Reflektor für eine Leuchte
US20070070633A1 (en) * 2005-09-29 2007-03-29 Eynden James G V Self-standing reflector for a luminaire
DE202009004003U1 (de) * 2009-03-25 2009-06-10 Alux-Luxar Gmbh & Co. Kg Rundreflektor für elektromagnetische Strahlung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413462A (en) * 1966-09-29 1968-11-26 Spero Electric Corp Lighting fixture reflector surfacing device
US4028542A (en) * 1974-09-11 1977-06-07 Esquire, Inc. Faceted parabolic-type reflector system
GB1504689A (en) * 1975-04-18 1978-03-22 Oram J Lighting devices
US6152579A (en) * 1998-12-14 2000-11-28 Lsi Industries, Inc. Self-standing reflector for a luminaire and method of making same
DE102004006003A1 (de) * 2004-02-06 2005-08-25 Zumtobel Staff Gmbh Ringförmiger Reflektor für eine Leuchte
US20070070633A1 (en) * 2005-09-29 2007-03-29 Eynden James G V Self-standing reflector for a luminaire
DE202009004003U1 (de) * 2009-03-25 2009-06-10 Alux-Luxar Gmbh & Co. Kg Rundreflektor für elektromagnetische Strahlung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012108719A1 (de) 2012-09-17 2014-03-20 Alanod Gmbh & Co. Kg Reflektor, Beleuchtungskörper mit einem derartigen Reflektor und Verwendung eines Basismaterials zu dessen Herstellung
IT201800003408A1 (it) * 2018-03-09 2019-09-09 Reggiani Illuminazione Riflettore per dispositivi di illuminazione
EP3537035A1 (fr) 2018-03-09 2019-09-11 Reggiani S.p.A. Illuminazione Reflecteur pour dispositifs d'eclairage

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Inventor name: HACKFORT, DIETER

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