EP0633425B1 - Armature à grille et tube fluorescent - Google Patents

Armature à grille et tube fluorescent Download PDF

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Publication number
EP0633425B1
EP0633425B1 EP93116825A EP93116825A EP0633425B1 EP 0633425 B1 EP0633425 B1 EP 0633425B1 EP 93116825 A EP93116825 A EP 93116825A EP 93116825 A EP93116825 A EP 93116825A EP 0633425 B1 EP0633425 B1 EP 0633425B1
Authority
EP
European Patent Office
Prior art keywords
lamellae
lighting fixture
central region
transversal
lamp
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.)
Expired - Lifetime
Application number
EP93116825A
Other languages
German (de)
English (en)
Other versions
EP0633425A1 (fr
Inventor
Stephan Ranke
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.)
Thorn Licht GmbH
Original Assignee
Thorn Licht GmbH
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 Licht GmbH filed Critical Thorn Licht GmbH
Publication of EP0633425A1 publication Critical patent/EP0633425A1/fr
Application granted granted Critical
Publication of EP0633425B1 publication Critical patent/EP0633425B1/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
    • F21V13/02—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
    • 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
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • 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
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
    • 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 present invention relates to a louvre lamp equipped with a rod-shaped fluorescent lamp, in which the fluorescent lamp is arranged centrally in the upper region of a box-shaped lamp housing of a relatively large width, the light exit opening transverse to the lamp longitudinal axis being essentially divided into three fields of approximately the same width, namely in a central area, which is delimited by two longitudinally extending lamella-like reflectors and two side fields, which are each delimited towards the center of the lamp by one of the longitudinally extending lamella-like reflectors and to the outside of the lamp by a linear reflector that curves from the light exit opening extends approximately in the vicinity of the housing ceiling of the lamp, both the central area and the two side panels are divided by numerous transverse lamellae, each with an acute-angled V-cross Chnitt have and are arranged horizontally in the central region and extend with their lower edge approximately to the level of the light exit opening.
  • a grid light of the type mentioned is known.
  • the transverse slats are only arranged horizontally in the central area, while they run approximately in the diagonal direction in the two side panels, starting from the longitudinal slats and extending obliquely upwards to the linear outer reflectors.
  • the longitudinal slats are also asymmetrical in cross section, so that the inner leg has a somewhat greater curvature than the outer leg.
  • the known luminaire is a so-called all-around glare-free luminaire that achieves glare control at a certain angle across all solid angles. Such lights are particularly advantageous because they allow a flexible arrangement of the workplaces regardless of the axes of the lights installed in the room.
  • the object of the present invention is to further improve the efficiency of a luminaire of the type mentioned in the introduction while maintaining all-round glare control.
  • the transverse lamellae in the central area and also the transverse lamellae in the two side panels run horizontally and parallel to the housing ceiling of the luminaire, the transverse lamellae in the side panels below in the same way Complete the height with the cross blades in the middle area and the cross blades in the side panels extend up to closer to the lamp than the cross blades in the middle area.
  • the transverse lamellae in the side panels preferably close off at approximately the same height as the longitudinal lamellae and the height of the transverse lamellae in the central region is preferably approximately four fifths of the height of the transverse lamellae in the side panels.
  • the longitudinal lamellae which separate the side fields from the central region preferably have a V-shaped cross section, each with concave curvature on the outside, and are symmetrical with respect to their central axis. Furthermore, the transverse slats are preferably designed so that they have the same cross section as the longitudinal slats.
  • the luminaire according to the invention has comparable anti-glare properties as the previously known luminaire, but has an even higher efficiency.
  • the luminaire according to the invention has a rod-shaped fluorescent lamp 12 as the illuminant, which is arranged centrally in the upper region of a box-shaped luminaire housing 10 in the longitudinal direction of the housing.
  • the luminaire housing which is approximately rectangular in cross section, has a relatively large width compared to the height.
  • the light exit opening is divided over the width of the luminaire, that is to say in the transverse direction, into three fields and specifically into a central region through which rays 17 which come from the lamp 12 can exit directly.
  • This luminous flux which is indicated in the drawing by the beam 17, is also referred to as the primary luminous flux.
  • the transverse slats 15, 16 in the two side fields of the light exit opening are now pulled upward (higher) than the transverse slats 11 in the central region.
  • the transverse lamellae 15, 11, 16 end at the same height in all three sub-areas of the light exit opening, with the underside terminating approximately with the longitudinal lamellae 14 with an acute-angled V-shaped cross section.
  • the transverse lamellae 15, 16 in the two side panels also close at the top at approximately the same height as the two longitudinal lamellae 14.
  • the transverse lamellae 11 in the middle region end at a lower height than the transverse lamellae 15, 16 in the side panel, so that the cross blades 11 come less close to the lamp 12.
  • the longitudinal lamellae 14, which separate the three fields of the light exit opening, are constructed symmetrically to their central axis 14a and in the exemplary embodiment each have a concave, approximately parabolic curvature on the outside.
  • the two longitudinal reflectors 13, which each delimit the two side fields of the light exit opening to the outside, have a linear curvature and extend approximately inwards from the lower end of the transverse slats to the vicinity of the housing cover 10a, the lamp.
  • the transverse slats 11 are anchored on both sides in the respective inner legs of the longitudinal slats 14.
  • the ends of the transverse slats 16 are anchored in the same way in the respective outer legs of the longitudinal slats 14 or in the longitudinal reflectors 13.
  • This structure of the grid achieves optimal glare control over all solid angles, i.e. it is a so-called all-round glare-free luminaires that allow flexible workplace design.
  • the user of the luminaire is therefore not restricted to specific axes which are predetermined by the luminaire arrangement when arranging the workplaces in the illuminated room.
  • the lamp according to the invention also has a higher efficiency. In this regard, reference is made to FIG.
  • Luminaire dimensions Luminous surface: Length: 1247 [mm] Length: 1216 [mm] Width: 309 [mm] Width: 255 [mm] Diameter: 0 [mm] Diameter: 0 [mm] Height: 93 [mm] Height: 0 [mm]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Claims (4)

  1. Armature à grille et tube fluorescent (12), dans laquelle le tube fluorescent est disposé au milieu dans la zone supérieure d'un boîtier (10) en forme de caisson d'une extension en largeur relativement grande, l'orifice de sortie de lumière étant, transversalement à l'axe longitudinal de l'armature, subdivisé en substance en trois panneaux de largeur sensiblement égale, à savoir en un panneau médian, qui est borné par deux réflecteurs du type lamelle (14) disposés en direction longitudinale, et deux panneaux latéraux qui sont chacun en direction du milieu de l'armature bornés par un réflecteur du type lamelle (14) et en direction du côté extérieur de l'armature bornés par un réflecteur linéaire (13) lequel sous forme incurvée est s'étend depuis l'orifice d'entrée de lumière jusqu'à sensiblement près du plafond du boîtier de l'appareil d'éclairage, où tant la zone médiane qu'également les deux panneaux latéraux sont subdivisés par de nombreuses lamelles transversales (11, 15, 16), lesquelles présentent chacune une section transversale en V à angle aigu et qui dans la zone médiane sont disposées horizontalement avec une arête inférieure qui atteint sensiblement le niveau de l'orifice de sortie de lumière, caractérisée en ce que les lamelles transversales (11) de la zone médiane et également les lamelles transversales (15, 16) des deux panneaux latéraux sont orientées horizontalement et parallèlement au plafond de l'appareil d'éclairage, les lamelles transversales (15, 16) dans les panneaux latéraux se terminant en bas au même niveau que les lamelles transversales (11) de la zone médiane, tandis que les lamelles transversales (15, 16) des panneaux latéraux se rapprochent, en haut, plus près du tube fluorescent (12) que les lamelles transversales (11) de la zone médiane.
  2. Armature à grille et tube fluorescent suivant la revendication 1, caractérisée en ce que les lamelles transversales (15, 16) dans les panneaux latéraux se terminent en haut sensiblement au même niveau que les lamelles longitudinales (14) et en ce que la hauteur des lamelles transversales (11) dans la zone médiane est sensiblement de quatre cinquièmes de la hauteur des lamelles transversales (15, 16) dans les panneaux latéraux.
  3. Armature à grille et tube fluorescent suivant la revendication 1 ou la revendication 2, caractérisée en ce que les lamelles longitudinales (14) ont une section transversale en forme de V avec une courbure extérieure concave de part et d'autre et sont de forme symétrique par rapport à leur axe médian (14a).
  4. Armature à grille et tube fluorescent suivant l'une quelconque des revendications de 1 à 3, caractérisée en ce que les lamelles transversales (11, 15, 16) ont la même section transversale que les lamelles longitudinales (14).
EP93116825A 1993-07-07 1993-10-19 Armature à grille et tube fluorescent Expired - Lifetime EP0633425B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9310111U 1993-07-07
DE9310111U DE9310111U1 (de) 1993-07-07 1993-07-07 Mit einer stabförmigen Leuchtstofflampe bestückte Rasterleuchte

Publications (2)

Publication Number Publication Date
EP0633425A1 EP0633425A1 (fr) 1995-01-11
EP0633425B1 true EP0633425B1 (fr) 1996-07-03

Family

ID=6895290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116825A Expired - Lifetime EP0633425B1 (fr) 1993-07-07 1993-10-19 Armature à grille et tube fluorescent

Country Status (3)

Country Link
EP (1) EP0633425B1 (fr)
AT (1) ATE140073T1 (fr)
DE (2) DE9310111U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013105761U1 (de) 2013-12-18 2014-02-04 DDH GmbH Motivdekorierte Rasterdecke

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8613788U1 (de) * 1986-05-22 1986-07-31 Fa. Ing. Friedhelm Hirt, 5880 Lüdenscheid Leuchtstoffröhrenleuchte
DE3900202A1 (de) * 1989-01-05 1990-07-12 Thorn Licht Gmbh Mit einer stabfoermigen leuchtstofflampe bestueckte rasterleuchte

Also Published As

Publication number Publication date
ATE140073T1 (de) 1996-07-15
EP0633425A1 (fr) 1995-01-11
DE59303146D1 (de) 1996-08-08
DE9310111U1 (de) 1993-09-02

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