EP0538727A1 - Réflecteur pour dispositif d'éclairage - Google Patents

Réflecteur pour dispositif d'éclairage Download PDF

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Publication number
EP0538727A1
EP0538727A1 EP92117550A EP92117550A EP0538727A1 EP 0538727 A1 EP0538727 A1 EP 0538727A1 EP 92117550 A EP92117550 A EP 92117550A EP 92117550 A EP92117550 A EP 92117550A EP 0538727 A1 EP0538727 A1 EP 0538727A1
Authority
EP
European Patent Office
Prior art keywords
reflector
film
perforated plate
lamp
reflector according
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
EP92117550A
Other languages
German (de)
English (en)
Other versions
EP0538727B1 (fr
Inventor
Fasser Heinz
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP0538727A1 publication Critical patent/EP0538727A1/fr
Application granted granted Critical
Publication of EP0538727B1 publication Critical patent/EP0538727B1/fr
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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • 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
    • F21V11/14—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures with many small apertures
    • 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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters

Definitions

  • the invention relates to a reflector for a lamp with at least one elongated lamp or at least one lamp, such as fluorescent lamps or halogen rods, etc.
  • Such reflectors are usually arranged with respect to the lamp, they are basket-shaped or arcuate and made of perforated sheet metal.
  • Such reflectors at least partially cover the lamp of the lamp and thus prevent an observer from seeing the lamp directly and being blinded thereby.
  • the perforated plate alone does not guarantee complete glare protection. Under unfavorable circumstances, the viewer can partially see the lamp through the openings in the perforated plate. That is why a translucent, opal or milky white half-shell is inserted on the inside of the basket.
  • the reflector just described is often used in combination with other reflectors mounted above the lamp. These reflectors are usually painted white. In order to achieve the most pleasant lighting effect of the lamp, efforts are made to make the luminance on all light-emitting surfaces of the lamp approximately the same.
  • the half-shell must be about 3 mm thick for manufacturing reasons, the losses are so high that none are so high Luminance as can be achieved with the other reflectors.
  • the production of the half-shells is very complex.
  • the half-shells are manufactured using blow molding machines by hot forming.
  • the side edges have to be reworked after the deformation.
  • the half-shells are extruded for large quantities.
  • the side edges do not have to be reworked during extrusion, but this type of production requires high tool investments.
  • the invention according to claim 1 solves the problem of designing a reflector of the type described above in such a way that it can be manufactured much more easily without having to accept any loss in quality in the case of glare control.
  • different reflector sizes should be easy to manufacture.
  • the film is advantageously held in bends of the perforated plate or by holding elements which ensure that the film rests on the inside and / or outside of the perforated plate. It is also possible to glue the film to the perforated plate (claims 2 and 3).
  • the transparency of the reflector is increased by using a film while the number and size of the holes in the perforated plate remain the same. It is thereby achieved that the luminance on all light-emitting surfaces of the lamp can be chosen to be approximately the same size. This creates a particularly friendly indoor climate, the light effect of the lamp is perceived by the viewer as pleasant.
  • the invention is described by way of example with reference to FIGS. 1 to 4 on a recessed ceiling light, the reflector according to the invention of course also being able to be used in other lights.
  • Fig. 1 shows a lamp with a reflector according to the invention, arcuate in cross section in the installed state with an inserted lamp.
  • Fig. 2 shows the same lamp, with the reflectors being highlighted.
  • FIG. 3 shows a reflector according to the invention.
  • FIG. 4 shows a reflector according to the invention which is configured differently from FIG. 3, the film having been bent.
  • FIG. 1 shows how a lamp 1 is installed in a conventional grid ceiling.
  • the luminaire 1 is held by mounting rails 9 just like ceiling elements 8.
  • a lamp 5 is inserted into a socket 7, electrical connection lines and operating devices not being shown for the sake of simplicity were.
  • the lamp 5 is covered by a partially translucent reflector 4.
  • This reflector 4 is shown partly in section.
  • the reflector 4 consists of a perforated plate 10 and an inner film 11. This film 11 is preferably 0.5 mm thick, translucent and milky white.
  • the lamp 1 is shown without electrical components.
  • the reflector 4 is connected via holding elements 3, 3 'with screw bolts 13 to a lamp housing 6. Instead of screw connections, riveted, welded or adhesive connections can also be selected.
  • the lamp housing 6 there are two further reflectors 2, 2 '. These reflectors are painted white and have the task of emitting light that comes directly from the lamp or indirectly from the reflector from the lamp.
  • the film 11 can also be attached outside the perforated plate 10.
  • the holding of the film then preferably take over the holding elements 3, 3 '.
  • the film 11 can be glued to the perforated plate 10.
  • FIG. 3 shows a preferred embodiment of the reflector 4 with perforated sheet and foil, the illustration not being to scale and the perforation only being indicated.
  • the film 11 is held by the perforated plate 10 with bends 12, 12 '.
  • the film is installed in a simple manner. It only needs to be inserted under the bend 12 or 12 'on one side and then pressed down. The film is then snapped under the opposite bend 12 'or 12. It is also possible to insert the film laterally. As a result of the internal stress, the film lies fully against the perforated plate over the entire area. No further fastenings are necessary.
  • the thickness of the film must be chosen so that the desired luminance can be achieved, whereby the film must not be too thick so that it lies exactly against the perforated plate.
  • UV-resistant PMMA polymethyl methacrylate
  • the film must be UV-resistant, because discharge lamps emit a small amount of UV light and plastics can become brittle when exposed to UV.
  • the number and size of the holes in the perforated plate 10 are of course also responsible for the height of the luminance on the reflector 4.
  • a perforated plate with holes whose area is 0.7 to 1.8 mm 2 and which are arranged at a distance from the center of one hole to the center of an adjacent hole of approximately 1.5 to 3.5 mm is preferably used.
  • the light that does not leave the lamp through the openings in the perforated plate 10 of the reflector 4 is reflected from the perforated plate 10, which is usually painted white, to the reflectors 2, 2 'and is emitted from there.
  • FIG. 4 shows a basket-like reflector, the illustration not to scale and the holes - as in FIG. 3 - only being indicated. So that the film lies against the perforated plate over the entire area, the film was kinked in the area of the edges 14, 14 ', it being pointed out that it is not absolutely necessary that the film always lies against the perforated plate. If the film is not kinked, then this rests on the perforated plate in the manner of the dashed line 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP92117550A 1991-10-24 1992-10-14 Réflecteur pour dispositif d'éclairage Expired - Lifetime EP0538727B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9113266U 1991-10-24
DE9113266 1991-10-24

Publications (2)

Publication Number Publication Date
EP0538727A1 true EP0538727A1 (fr) 1993-04-28
EP0538727B1 EP0538727B1 (fr) 1995-05-31

Family

ID=6872593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92117550A Expired - Lifetime EP0538727B1 (fr) 1991-10-24 1992-10-14 Réflecteur pour dispositif d'éclairage

Country Status (3)

Country Link
EP (1) EP0538727B1 (fr)
AT (1) ATE123335T1 (fr)
DE (1) DE59202396D1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443741A1 (de) * 1994-12-08 1996-06-13 Hartmut S Engel Leuchte
AT401966B (de) * 1994-11-17 1997-01-27 Photonic Optische Geraete Gmbh Beleuchtungseinrichtung
DE19648310A1 (de) * 1996-11-21 1998-05-28 Zumtobel Licht Leuchte mit einer Lampe und mindestens einem Lichtdämpfungsteil
WO1999027296A1 (fr) * 1997-11-24 1999-06-03 Nordisk Edb-Miljø Aps Dispositif reflechissant la lumiere et procede permettant d'ameliorer la qualite d'illumination d'un appareil d'eclairage a tube fluorescent
US6042246A (en) * 1998-05-18 2000-03-28 Herbert Waldmann Gmbh & Co. Wide-beam indirect lamp assembly
DE19923224A1 (de) * 1999-04-07 2000-10-12 Zumtobel Staff Gmbh Beleuchtungsanordnung zur Anbringung an der Decke oder einer Wand eines Raumes
EP1254764A2 (fr) * 2001-05-04 2002-11-06 Sibu Design GmbH & Co KG Plaque décorative, en particulier comme élément de plafond
EP1359371A1 (fr) * 2002-04-12 2003-11-05 Zumtobel Staff GmbH Luminaire avec diffuseur
AT412993B (de) * 1996-05-22 2005-09-26 Zumtobel Licht Leuchte
CN103119355A (zh) * 2010-09-27 2013-05-22 宗拓贝尔照明器材有限公司 定向光输出装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19615523C1 (de) * 1996-04-19 1997-11-20 Fraenkische Leuchten Gmbh Lichtdurchlässige Leuchtmittelabdeckung
DE10241941B4 (de) * 2002-09-10 2015-07-02 Zumtobel Lighting Gmbh Leuchtensystem, Adaptionsglied und Leuchte damit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860903A (en) * 1974-03-26 1975-01-14 Westinghouse Electric Corp High output low brightness ventilated luminaire
DE8528116U1 (de) * 1985-10-02 1987-02-12 Thorn Emi Licht GmbH, 5760 Arnsberg Leuchte
EP0235652A2 (fr) * 1986-02-19 1987-09-09 Daume & Jordan GmbH & Co KG Armature lumineuse non éblouissante avec écran réflecteur en forme de bande

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215447B (en) * 1987-11-06 1991-05-29 Designed Architectural Lightin Lighting installation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860903A (en) * 1974-03-26 1975-01-14 Westinghouse Electric Corp High output low brightness ventilated luminaire
DE8528116U1 (de) * 1985-10-02 1987-02-12 Thorn Emi Licht GmbH, 5760 Arnsberg Leuchte
EP0235652A2 (fr) * 1986-02-19 1987-09-09 Daume & Jordan GmbH & Co KG Armature lumineuse non éblouissante avec écran réflecteur en forme de bande

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401966B (de) * 1994-11-17 1997-01-27 Photonic Optische Geraete Gmbh Beleuchtungseinrichtung
DE4443741A1 (de) * 1994-12-08 1996-06-13 Hartmut S Engel Leuchte
AT412993B (de) * 1996-05-22 2005-09-26 Zumtobel Licht Leuchte
DE19648310A1 (de) * 1996-11-21 1998-05-28 Zumtobel Licht Leuchte mit einer Lampe und mindestens einem Lichtdämpfungsteil
WO1999027296A1 (fr) * 1997-11-24 1999-06-03 Nordisk Edb-Miljø Aps Dispositif reflechissant la lumiere et procede permettant d'ameliorer la qualite d'illumination d'un appareil d'eclairage a tube fluorescent
US6042246A (en) * 1998-05-18 2000-03-28 Herbert Waldmann Gmbh & Co. Wide-beam indirect lamp assembly
DE19923224A1 (de) * 1999-04-07 2000-10-12 Zumtobel Staff Gmbh Beleuchtungsanordnung zur Anbringung an der Decke oder einer Wand eines Raumes
EP1254764A2 (fr) * 2001-05-04 2002-11-06 Sibu Design GmbH & Co KG Plaque décorative, en particulier comme élément de plafond
EP1254764A3 (fr) * 2001-05-04 2004-02-11 Sibu Design GmbH & Co KG Plaque décorative, en particulier comme élément de plafond
EP1359371A1 (fr) * 2002-04-12 2003-11-05 Zumtobel Staff GmbH Luminaire avec diffuseur
CN103119355A (zh) * 2010-09-27 2013-05-22 宗拓贝尔照明器材有限公司 定向光输出装置
CN103119355B (zh) * 2010-09-27 2015-10-14 宗拓贝尔照明器材有限公司 定向光输出装置

Also Published As

Publication number Publication date
DE59202396D1 (de) 1995-07-06
ATE123335T1 (de) 1995-06-15
EP0538727B1 (fr) 1995-05-31

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