EP1113219B1 - Lampe - Google Patents

Lampe Download PDF

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Publication number
EP1113219B1
EP1113219B1 EP00128495A EP00128495A EP1113219B1 EP 1113219 B1 EP1113219 B1 EP 1113219B1 EP 00128495 A EP00128495 A EP 00128495A EP 00128495 A EP00128495 A EP 00128495A EP 1113219 B1 EP1113219 B1 EP 1113219B1
Authority
EP
European Patent Office
Prior art keywords
lamp
transverse lamellae
transverse
region
lower edge
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
EP00128495A
Other languages
German (de)
English (en)
Other versions
EP1113219A3 (fr
EP1113219A2 (fr
Inventor
Christian Bartenbach
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.)
Ludwig Leuchten KG
Original Assignee
Ludwig Leuchten 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 Ludwig Leuchten KG filed Critical Ludwig Leuchten KG
Publication of EP1113219A2 publication Critical patent/EP1113219A2/fr
Publication of EP1113219A3 publication Critical patent/EP1113219A3/fr
Application granted granted Critical
Publication of EP1113219B1 publication Critical patent/EP1113219B1/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
    • 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 present invention relates to a luminaire for an elongated lamp with parallel to the lamp extending longitudinal reflectors and a plurality of spaced-apart transverse blades, which have a lower, tapered portion and whose lower edge is bent.
  • Such a lamp is from the US 5,758,954 known.
  • the lower, tapered region of the transverse lamella has a varying curvature, since the lower edge of the transverse lamellae is bent, whereas the lower, the tapered region upwardly bounding edges are straight. This geometry adversely affects the illumination distribution.
  • Further cross blades are from the DE 4417917 A1 and the EP 0 138 747 A1 known.
  • the object of the invention is therefore to improve the illumination distribution of the known lamp.
  • cross section of the lower, tapered region over the width of the transverse lamellae has the same shape, and that the lower, the tapered region upwardly bounding edges coincide in their curvature with the lower edge of the transverse lamellae.
  • the three-dimensional shaping of the lower region of the transverse lamellae is generated geometrically in that a predetermined curved piece, which is preferably parabolically curved, is displaced in a normal plane to the longitudinal axis of the lamp with constant alignment along the curved lower edge of the transverse lamellae.
  • the highest point lies in the middle of the cross blades, whereas the lower edge drops towards the edges of the transverse blades.
  • the cross sections through the cross blades all have the same shape and are only offset in height to each other. Overall, the new lamellar shape can be achieved even with elongated light sources, such as fluorescent tubes, a substantially rotationally symmetric light intensity distribution or Ausblend .
  • the thickness of the transverse lamella is approximately half the diameter of the lamp.
  • An excessive limitation of the radiation in the longitudinal direction of the luminaire can be avoided in that the vertical height difference of the lower edge of the transverse lamella is about one quarter of the diameter of the lamp.
  • the top surface of the transverse lamellae, seen in the longitudinal direction of the lamp is indented in the middle region in a V-shape.
  • the luminaire according to the invention has an elongate lamp 1 as the light source.
  • the longitudinal reflectors 2 are drawn in Fig. 1 only in the area between two transverse blades 3, but they extend over the entire lamp.
  • the longitudinal reflectors 2 have involute in the upper area, so that all the incident rays are reflected by the lamp 1 down past.
  • transverse blades 3 are arranged in normal planes to the longitudinal axis of the lamp.
  • the cross blades 3 are made of high quality aluminum sheet.
  • the transverse lamellae 3 conically converge, wherein the surfaces are concavely curved. Specifically, it is a parabolic or similar shape, which is generated by transverse displacement along the lower edge 9. The transverse displacement takes place in a normal plane to the central axis of the lamp 1, wherein the orientation of the parabolic curved piece, which is moved transversely, remains unchanged. In this way, the curvature of the lower edge 9 coincides with the curvature of the edges 8.
  • the drawn in Fig. 2 vertical height difference H is one quarter of the diameter D of the lamp first
  • the side surfaces of the transverse lamellae 3 run parallel to one another, resulting in an unchanged thickness B in the upper region 5 of the transverse lamellae 3.
  • This thickness B is approximately half the diameter D of the lamp 1.
  • the top surface 6 of the transverse lamellae 3 outside the longitudinal reflector extends horizontally in the edge zones 7 and is recessed into the longitudinal reflector towards the center in a V-shape, so that a free space for the lamp 1 results.
  • the indentation extends essentially down to the edges. 8

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (8)

  1. Luminaire pour une lampe allongée avec des réflecteurs longitudinaux s'étendant parallèlement à la lampe et une pluralité de lamelles transversales espacées les unes des autres, qui présentent une partie inférieure se rétrécissant et dont l'arête inférieure est courbe,
    caractérisé en ce que
    la forme tridimensionnelle de la partie inférieure des lamelles transversales, du point de vue géométrique, est produite par déplacement d'une section de courbe prédéfinie en conservant l'alignement dans un plan perpendiculaire à un axe longitudinal de la lampe le long de l'arête inférieure courbe de la lamelle transversale, les sections transversales de la partie inférieure se rétrécissant (4) présentent toutes la même forme sur la largeur des lamelles transversales (3) et en ce que la courbure des arêtes (8) limitant vers le haut la partie inférieure se rétrécissant (4) coïncide avec la courbure de l'arête inférieure (9) des lamelles transversales (3).
  2. Luminaire selon la revendication 1, caractérisé en ce que la partie inférieure se rétrécissant (4) des lamelles transversales (3) a une courbure concave des deux côtés.
  3. Luminaire selon la revendication 2, caractérisé en ce que la partie inférieure se rétrécissant (4) des lamelles transversales (3) a une courbure parabolique des deux côtés.
  4. Luminaire selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la partie supérieure (5) des lamelles transversales (3) située au-dessus des arêtes (8) présente une épaisseur constante (B).
  5. Luminaire selon la revendication 4, caractérisé en ce que l'épaisseur (B) des lamelles transversales (3) vaut approximativement la moitié du diamètre (D) de la lampe (1).
  6. Luminaire selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'arête inférieure (9) des lamelles transversales a une courbure en forme d'arc de cercle.
  7. Luminaire selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la différence de hauteur verticale (H) de l'arête inférieure (9) des lamelles transversales (3) vaut approximativement un quart du diamètre (D) de la lampe (1).
  8. Luminaire selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la surface de recouvrement (6) des lamelles transversales (3), vue dans la direction longitudinale de la lampe (1), est renfoncée en forme de V dans la partie centrale et s'étend horizontalement dans les zones des bords (7).
EP00128495A 1999-12-27 2000-12-23 Lampe Expired - Lifetime EP1113219B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT219099 1999-12-27
AT219099 1999-12-27

Publications (3)

Publication Number Publication Date
EP1113219A2 EP1113219A2 (fr) 2001-07-04
EP1113219A3 EP1113219A3 (fr) 2002-02-06
EP1113219B1 true EP1113219B1 (fr) 2008-01-02

Family

ID=3529646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00128495A Expired - Lifetime EP1113219B1 (fr) 1999-12-27 2000-12-23 Lampe

Country Status (4)

Country Link
US (2) US6582099B2 (fr)
EP (1) EP1113219B1 (fr)
AT (1) ATE382827T1 (fr)
DE (1) DE50014892D1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20010460A1 (it) * 2001-05-18 2002-11-18 Fiat Ricerche Dispositivo di illuminazione a luminanza controllata.
ATE376147T1 (de) * 2001-11-01 2007-11-15 Koninkl Philips Electronics Nv Leuchte und leuchtenraster für solche leuchte
EP1472491B1 (fr) * 2002-01-28 2008-05-14 Koninklijke Philips Electronics N.V. Luminaire
ITFI20020077U1 (it) * 2002-07-19 2004-01-19 Targetti Sankey Spa Griglia antiabbagliamento per sorgenti luminose tubolari
CN100472122C (zh) * 2002-08-01 2009-03-25 皇家飞利浦电子股份有限公司 照明装置及其薄片叶片
DE10360943A1 (de) * 2003-12-23 2005-07-21 Engel, Hartmut S. Beleuchtungseinrichtung
US7195374B2 (en) * 2004-03-12 2007-03-27 Honeywell International, Inc. Luminaires for artificial lighting
ATE508325T1 (de) * 2004-11-12 2011-05-15 Koninkl Philips Electronics Nv Leuchte und lamellenraster dafür
NL1027815C2 (nl) * 2004-12-17 2006-06-20 Lichtholland B V Lamel voor een reflector van een verlichtingsarmatuur met een buislamp.
TWI335608B (en) * 2006-07-20 2011-01-01 Au Optronics Corp Connecting unit for wick of cold cathode fluorescent lamp
DE102013207609A1 (de) * 2013-04-25 2014-10-30 Osram Gmbh Reflektoranordnung mit mehreren Reflektoren und Halbleiterlichtquellen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8330299U1 (de) * 1983-10-18 1984-04-12 Semperlux Gmbh, 1000 Berlin Parabolisches lamellenelement fuer langgestreckte lichtquellen
ES2066960T3 (es) 1989-12-27 1995-03-16 Philips Nv Luminaria.
DE4417917C2 (de) * 1994-05-24 1996-05-23 Kotzolt Leuchten Lamellen-Einsatz zur Abschirmung der Lichtaustrittsöffnung von Lichtrohren
NZ300261A (en) 1995-02-14 1997-11-24 Philips Electronics Nv Luminaire with lamellae having concave outer edges for providing more uniform illumination
US5528478A (en) * 1995-10-04 1996-06-18 Cooper Industries, Inc. Lighting fixture having a parabolic louver
WO1998015775A1 (fr) * 1996-10-08 1998-04-16 Philips Electronics N.V. Appareil d'eclairage
GB2341669A (en) * 1998-09-15 2000-03-22 Interlux Limited Light controller for light fitting

Also Published As

Publication number Publication date
EP1113219A3 (fr) 2002-02-06
US20010019481A1 (en) 2001-09-06
DE50014892D1 (de) 2008-02-14
ATE382827T1 (de) 2008-01-15
EP1113219A2 (fr) 2001-07-04
US6582099B2 (en) 2003-06-24

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