WO1997030309A1 - Luminaire - Google Patents

Luminaire Download PDF

Info

Publication number
WO1997030309A1
WO1997030309A1 PCT/IB1997/000047 IB9700047W WO9730309A1 WO 1997030309 A1 WO1997030309 A1 WO 1997030309A1 IB 9700047 W IB9700047 W IB 9700047W WO 9730309 A1 WO9730309 A1 WO 9730309A1
Authority
WO
WIPO (PCT)
Prior art keywords
light emission
luminaire
housing
emission plane
panel
Prior art date
Application number
PCT/IB1997/000047
Other languages
English (en)
Inventor
Albert Jansen
Original Assignee
Philips Electronics N.V.
Philips Norden Ab
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 Philips Electronics N.V., Philips Norden Ab filed Critical Philips Electronics N.V.
Publication of WO1997030309A1 publication Critical patent/WO1997030309A1/fr

Links

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
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • 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
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the invention relates to a luminaire provided with a housing having a light emission plane and several lighting units next to one another in the housing, each unit comprising means for accommodating a tubular lamp in the housing along the light emission plane, having a light emission window, and having a pair of side reflectors which face one another and each have an inner edge in the housing and an outer edge adjacent the light emission plane defining the relevant light emission window.
  • Such a luminaire is known from US-A-3,748,460.
  • the known luminaire is designed for accommodating fluorescent lamps and comprises for this purpose electric supply units accommodated in an extension of the housing.
  • the extension is present in the extended longitudinal direction of the lamps, at a level removed from the light emission plane.
  • the luminaire has a greatest dimension in longitudinal direction of the lamps which is considerably greater than the dimension of the light emission window in that direction.
  • the luminaire is suitable for use in a false ceiling. Above that ceiling, accordingly, there must be a space laterally of the light emission window for accommodating the extension of the housing.
  • the tubular fluorescent lamps of the known luminaire still have a large diameter of 38 mm. More recent lamps have a much smaller diameter of 26 or even 15 mm. They also have a higher luminous efficacy.
  • the smaller lamp diameter renders it possible to give the lighting units for the lamps smaller dimensions, so that the width of the corresponding light emission window, the dimension transverse to the lamp, is smaller. It is not possible with these units to fill the light emission plane of the known luminaire. If a larger number of units than before were accommodated, however, an undesirable higher illuminance would be achieved.
  • the higher luminous efficacy of the new, thin lamps renders it desirable to have a luminaire with several lighting units for these lamps, the light emission windows of these units taken together being small as a result, while the luminaire is nevertheless suitable for use in locations in or at a ceiling which were designed for accommodating a luminaire with a comparatively large light emission plane, such as a luminaire of the known kind.
  • the luminaire offers the possibility of accommodating the light emission windows of the lighting units in the light emission plane of the housing in a distributed manner, in a chosen geometry, and to dimension the light emission plane such that the luminaire can be used instead of a conventional luminaire.
  • the luminaire thus retains the advantages of the known luminaire, i.e. a simple mechanical and electrical installation of various lighting units through the installation of only one housing.
  • the panel is indetachably connected to the side reflectors. Any lamellae present in a luminaire between the side reflectors of a lighting unit in the light emission window are preferably indetachably connected to the side reflectors. This facilitates the opening of the light emission plane during installation of the luminaire and exchanging of lamps. It is advantageous when the panel is light-transmitting. Stray light in the luminaire may then be utilized for reducing brighmess contrasts between the panel on the one hand and the adjoining light emission windows on the other hand.
  • the panel may be opal, for example made of synthetic resin, or alternatively of a perforated material, for example of metal plating, for example painted aluminum plating, for example with a pattern of, for example, round or elongate holes.
  • the luminaire according to the invention has the advantage that it can be comparatively flat, i.e. shallow when a supply unit for the electric supply of a tubular lamp to be accommodated is present opposite a panel, between two units.
  • the luminaire in this embodiment requires a smaller distance between a false ceiling in which the luminaire is incorporated and the ceiling proper. In new construction projects, the ceiling proper may thus be built at a smaller distance to the floor, which leads to a saving in construction cost.
  • Components for remote-control dimming and/or switching of the lamps may also be present opposite the panel, or components of an intercom installation etc.
  • the luminaire may be suitable for accommodating, for example, a linear or a U-shaped tubular fluorescent lamp.
  • Fig. 1 shows a luminaire in a cross-section transverse to the side reflectors
  • Fig. 2 is a side elevation of side reflectors, lamellae and panels taken on the line II in Fig. 1;
  • Fig. 3 is a cross-section of a modification taken on the line III-III in Fig. 2;
  • Fig. 4 is an elevation of the panel viewed along IV in Fig. 3.
  • the luminaire of Fig. 1 has a housing 1 with a light emission plane 2 and several lighting units 10 accommodated next to one another therein.
  • Each unit 10 comprises means 3 for holding a lamp in the housing 1 along the light emission plane 2, a linear, tubular lamp in the Figure, for example a fluorescent lamp.
  • the units 10 each have a light emission window 11 and a pair of mutually facing side reflectors 12 which each have an inner edge 13 in the housing 1 and an outer edge 14 adjacent the light emission plane 2 defining the relevant light emission window 11.
  • the light emission plane 2 is wider than the lighting units 10 in the light emission plane 2 taken together, and a panel 20 is present at least between one pair of adjoining lighting units 10, thus filling up the light emission plane 2.
  • a panel 20 there is a supply unit 4 for the electric supply of a tubular lamp to be accommodated as well as a connector 5 for mains connection.
  • the side reflectors 12 are indetachably connected to the panels 20.
  • the connections are achieved by means of a final lamella 16 in the row of lamellae 15, see also Fig. 3, to which both panels 20 and side reflectors 12 are fastened.
  • Lamellae 15 are present between the side reflectors 12 of each lighting unit 10 in the relevant light emission window 11, also connected indetachably to the side reflectors 12, i.e. hooked or snapped therein.
  • the panels 20 in the Figures are light-transmitting because they were made from perforated material, as is evident from Fig. 4, from aluminum plating in this case.
  • the assembly of panels 20, side reflectors 12, and lamellae 15 comprises fastening means 17, see Fig. 2, by which they can be fixed in their entirety in the housing 1 after the housing has been mounted, for example in a false ceiling, and/or lamps have been exchanged.
  • the assembly of Fig. 3 fits into the housing 1 of Fig. 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Le luminaire pour lampes tubulaires selon l'invention comporte un logement (1) possédant un plan d'émission de lumière (2) et plusieurs unités d'éclairage trouvant place dans le logement. Chaque unité (10) possède deux réflecteurs latéraux opposés (12) qui peuvent être connectés à des lamelles (15) et qui contiennent la fenêtre d'émission de lumière (11) de l'unité. Entre deux unités (10) contiguës peut se trouver une plaque (20) de transmission de la lumière, perforée, par exemple, occupant tout le plan d'émission de lumière (2). La plaque (20), les réflecteurs latéraux (12) et les lamelles (15) peuvent former un ensemble.
PCT/IB1997/000047 1996-02-14 1997-01-24 Luminaire WO1997030309A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96200362.0 1996-02-14
EP96200362 1996-02-14

Publications (1)

Publication Number Publication Date
WO1997030309A1 true WO1997030309A1 (fr) 1997-08-21

Family

ID=8223667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1997/000047 WO1997030309A1 (fr) 1996-02-14 1997-01-24 Luminaire

Country Status (3)

Country Link
DE (1) DE29609670U1 (fr)
FR (1) FR2744789B3 (fr)
WO (1) WO1997030309A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043542A2 (fr) 1999-04-07 2000-10-11 Zumtobel Staff GmbH Système d' éclairage pour installation au plafond ou au mur d' une pièce
EP2039983A1 (fr) 2007-09-20 2009-03-25 RIDI Leuchten GmbH Eclairage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1390623A (en) * 1971-12-28 1975-04-16 Nicol Andrew Ltd Lighting unit and reflector therefor
US4747027A (en) * 1986-05-22 1988-05-24 Friedhelm Hirt Leuchten Fluorescent lamp light unit
DE4143328A1 (de) * 1991-04-10 1992-10-22 Trilux Lenze Gmbh & Co Kg Arbeitsplatzleuchte
DE4202768A1 (de) * 1992-01-31 1993-08-05 Trilux Lenze Gmbh & Co Kg Leuchte
DE4417884A1 (de) * 1994-05-21 1995-01-05 Braun Uwe Peter Dipl Ing Lackkontrolleuchte

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1390623A (en) * 1971-12-28 1975-04-16 Nicol Andrew Ltd Lighting unit and reflector therefor
US4747027A (en) * 1986-05-22 1988-05-24 Friedhelm Hirt Leuchten Fluorescent lamp light unit
DE4143328A1 (de) * 1991-04-10 1992-10-22 Trilux Lenze Gmbh & Co Kg Arbeitsplatzleuchte
DE4202768A1 (de) * 1992-01-31 1993-08-05 Trilux Lenze Gmbh & Co Kg Leuchte
DE4417884A1 (de) * 1994-05-21 1995-01-05 Braun Uwe Peter Dipl Ing Lackkontrolleuchte

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043542A2 (fr) 1999-04-07 2000-10-11 Zumtobel Staff GmbH Système d' éclairage pour installation au plafond ou au mur d' une pièce
EP2039983A1 (fr) 2007-09-20 2009-03-25 RIDI Leuchten GmbH Eclairage

Also Published As

Publication number Publication date
DE29609670U1 (de) 1996-08-29
FR2744789B3 (fr) 1997-11-28
FR2744789A3 (fr) 1997-08-14

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