EP0138747B1 - Elément parabolique à lamelles pour lampes allongées - Google Patents

Elément parabolique à lamelles pour lampes allongées Download PDF

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Publication number
EP0138747B1
EP0138747B1 EP84730107A EP84730107A EP0138747B1 EP 0138747 B1 EP0138747 B1 EP 0138747B1 EP 84730107 A EP84730107 A EP 84730107A EP 84730107 A EP84730107 A EP 84730107A EP 0138747 B1 EP0138747 B1 EP 0138747B1
Authority
EP
European Patent Office
Prior art keywords
webs
transverse webs
transverse
longitudinal
designed
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
Application number
EP84730107A
Other languages
German (de)
English (en)
Other versions
EP0138747A1 (fr
Inventor
Armin Bansbach
Dieter Dipl.-Ing. Albert
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.)
Semperlux GmbH
Original Assignee
Semperlux 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 Semperlux GmbH filed Critical Semperlux GmbH
Priority to AT84730107T priority Critical patent/ATE32135T1/de
Publication of EP0138747A1 publication Critical patent/EP0138747A1/fr
Application granted granted Critical
Publication of EP0138747B1 publication Critical patent/EP0138747B1/fr
Expired 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type

Definitions

  • the invention relates to a parabolic lamella element for elongated light sources according to the preamble of the main claim.
  • Such lamella elements are used in particular for shading or glare control with elongated light sources such as. B. fluorescent lamps, cold cathode lamps or the like. And are usually made of plastic or light metal with a mirrored or colored, preferably white surface. While the longitudinal and transverse glare control can be carried out constructively without major difficulties, this is not the case with the equally important diagonal glare control. So far, this problem has not been mastered.
  • the invention is therefore based on the object of providing, in addition to an optimal longitudinal and transverse glare control, also reliable diagonal glare control in the direction of view in the case of a lamella element of the type mentioned at the outset.
  • the lamp elements consist of longitudinal webs 1 and transverse webs (slats) 2.
  • the slat elements are equipped with a locking mechanism 4 made of plastic or metal and can be clipped into sheet metal or aluminum channels without tools.
  • the longitudinal webs 1 are parabolic or cylindrical in shape or wound in stages; in extreme cases, as indicated at 11, they can also run straight.
  • the transverse webs 2 are designed approximately parabolically on the outside and are concave at the upper edges 7. They are also cut out at 12 V to save material. This measure prevents disturbing reflections from a light source 3 in the interior of the lights from the upper edge of the lamella 7. This anti-glare effect can be increased by keeping the V-cutouts 12 black on the inside.
  • the lower edges of the transverse webs 2 can have a straight shape 5 or a convex shape 8 or, like the upper edges 7, also have a concave shape 6.
  • the crossbar leaf height increases sharply from the central region AB to the side regions (FIGS. 2 and 6), as does the leaf thickness b 1 to b 2 (FIGS. 3, 4, 7, 8) from the inside increases to the outside.
  • the light passage openings 10 in FIGS. 1 and 5 are convex in shape.
  • the parabolically approximately cylindrical or straight design of the longitudinal webs 1, 11 and the transverse webs (lamellae) 2 produces a predetermined cut-off angle ⁇ of the light source 3 in the longitudinal direction (FIG. 9) and in the transverse direction (FIG. 10 ⁇ and ⁇ ; FIG. 11 ⁇ and ⁇ ).
  • the light source is glare-free in FIG. 10 and FIG. 11 in the transverse direction with the angle ⁇ , the transverse reflection of the light source 3 takes place via the mirrored or white parabolically shaped (approximately cylindrical) surface 1 with the radiation angle y.
  • the light source is glare-free at transverse angles ⁇ .
  • the longitudinal glare control is achieved by the increment “S (FIG.
  • the leaf height of the lamellae (FIGS. 2 and 6) increases considerably in height due to the concave curvature of the upper edge 7 from the central region AB to the side regions CD, as does the ratio h i : h 2 in FIGS. 3 and 4 and 7 and 8 shows.
  • the lower lamella shape is straight 5 or concave 6 to improve the lighting operating efficiency.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Resistance Heating (AREA)

Claims (5)

1. Paralume pour des sources de lumière allongées, comprenant des entretoises longitudinales (1) et des entretoises transversales (2) en forme de V, les côtés de ces entretoises transversales, en section transversale, étant formés approximativement paraboliques et, dans la direction longitudinale, ayant un bord (7) supérieur concave, caractérisé en ce que les entretoises transversales (2), dès leur centre (A-B), s'accroissent vers les entretoises longitudinales (1) latérales en hauteur et en largeur.
2.,Paralume selon la revendication 1, caractérisé en ce que le bord inférieur (8) des entretoises transversales (2) est formé d'une manière convexe.
3. Paralume selon la revendication 1, caractérisé en ce que le bord inférieur (6) des entretoises transversales (2) est formé d'une manière concave.
4. Paralume selon la revendication 1, caractérisé en ce que le bord inférieur (5) des entretoises transversales (2) est formé d'une manière droite.
5. Paralume selon l'une des revendications 1 à 4, caractérisé en ce que l'ouverture de passage (10) entre chaque paire des entretoises transversales (2) est formée d'une manière convexe.
EP84730107A 1983-10-18 1984-10-05 Elément parabolique à lamelles pour lampes allongées Expired EP0138747B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84730107T ATE32135T1 (de) 1983-10-18 1984-10-05 Parabolisches lamellenelement fuer langgestreckte lichtquellen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838330299U DE8330299U1 (de) 1983-10-18 1983-10-18 Parabolisches lamellenelement fuer langgestreckte lichtquellen
DE8330299U 1983-10-18

Publications (2)

Publication Number Publication Date
EP0138747A1 EP0138747A1 (fr) 1985-04-24
EP0138747B1 true EP0138747B1 (fr) 1988-01-20

Family

ID=6758155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84730107A Expired EP0138747B1 (fr) 1983-10-18 1984-10-05 Elément parabolique à lamelles pour lampes allongées

Country Status (3)

Country Link
EP (1) EP0138747B1 (fr)
AT (1) ATE32135T1 (fr)
DE (2) DE8330299U1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4882662A (en) * 1987-02-17 1989-11-21 Siemens Aktiengesellschaft Grid of lamellae for a lamp
NL9301557A (nl) * 1993-09-09 1995-04-03 Simon Cornelis Van Putten Dwarslamel voor een lichtbak.
ATE187538T1 (de) * 1993-09-09 1999-12-15 Veko Products B V Querlamelle für leuchtenkasten
NL9302169A (nl) * 1993-12-13 1995-07-03 Simon Cornelis Van Putten Dwarslamel voor een lichtbak.
JPH10502765A (ja) * 1995-02-14 1998-03-10 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 照明器具
FR2738623A1 (fr) * 1995-09-13 1997-03-14 Philips Eclairage Luminaire muni d'un louvre perfectionne
EP0959295B1 (fr) * 1998-05-19 2006-10-04 Koninklijke Philips Electronics N.V. Luminaire
NL1011025C2 (nl) * 1999-01-14 2000-07-17 Juliette Simone Catharina Van Verlichtingsarmatuur.
DE19916601C2 (de) * 1999-04-13 2002-08-01 Siteco Beleuchtungstech Gmbh Lamelle, Leuchtenraster zur Entblendung und Leuchte
ATE382827T1 (de) 1999-12-27 2008-01-15 Ludwig Leuchten Kg Leuchte
DE10040501B4 (de) * 2000-08-18 2006-11-30 Siteco Beleuchtungstechnik Gmbh Rundleuchte, Raster für Rundleuchte und Lamelle für Rundleuchte
GB0029532D0 (en) * 2000-12-04 2001-01-17 Webb Steven P Reflector for a linear light source and louvre controller incorporating the same
ATE376147T1 (de) * 2001-11-01 2007-11-15 Koninkl Philips Electronics Nv Leuchte und leuchtenraster für solche leuchte
CN1625667B (zh) * 2002-01-28 2012-12-05 皇家飞利浦电子股份有限公司 用于管状灯的带有薄片的照明装置
DE102004039676A1 (de) * 2004-08-16 2006-02-23 Zumtobel Staff Gmbh Rasteranordnung
CN201407599Y (zh) * 2009-04-24 2010-02-17 富昱电机股份有限公司 灯管灯具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8106507U1 (de) * 1981-03-07 1981-08-27 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg "leuchte mit einer langgestreckten lampe und einem darunter angeordneten spiegelraster"
EP0122972A1 (fr) * 1983-04-08 1984-10-31 Christian Bartenbach Armature lumineuse non-éblouissante pour source allongée

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024355A (en) * 1959-12-07 1962-03-06 Willis L Lipscomb Curved, cellular light control panel
DE3112210C2 (de) * 1981-03-27 1985-01-10 Siemens AG, 1000 Berlin und 8000 München Spiegelleuchte

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8106507U1 (de) * 1981-03-07 1981-08-27 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg "leuchte mit einer langgestreckten lampe und einem darunter angeordneten spiegelraster"
EP0122972A1 (fr) * 1983-04-08 1984-10-31 Christian Bartenbach Armature lumineuse non-éblouissante pour source allongée

Also Published As

Publication number Publication date
DE3468930D1 (en) 1988-02-25
DE8330299U1 (de) 1984-04-12
ATE32135T1 (de) 1988-02-15
EP0138747A1 (fr) 1985-04-24

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