EP0159534B1 - Lampe de forme allongée - Google Patents

Lampe de forme allongée Download PDF

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Publication number
EP0159534B1
EP0159534B1 EP85103159A EP85103159A EP0159534B1 EP 0159534 B1 EP0159534 B1 EP 0159534B1 EP 85103159 A EP85103159 A EP 85103159A EP 85103159 A EP85103159 A EP 85103159A EP 0159534 B1 EP0159534 B1 EP 0159534B1
Authority
EP
European Patent Office
Prior art keywords
cross
lamp
lamella
light
section
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
EP85103159A
Other languages
German (de)
English (en)
Other versions
EP0159534A1 (fr
Inventor
Franz Eugen Dipl.-Phys. Ing. Grawe
Manfred Grimm
Richard Dr.-Ing. Schneppendahl
Fred Dr.-Ing. Hasemann
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.)
Trilux GmbH and Co KG
Original Assignee
Trilux Lenze GmbH and Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6232313&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0159534(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Trilux Lenze GmbH and Co KG filed Critical Trilux Lenze GmbH and Co KG
Priority to AT85103159T priority Critical patent/ATE27350T1/de
Publication of EP0159534A1 publication Critical patent/EP0159534A1/fr
Application granted granted Critical
Publication of EP0159534B1 publication Critical patent/EP0159534B1/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • 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
    • 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
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • 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 with at least one elongated fluorescent lamp and a grid of longitudinal reflectors arranged parallel to a plane through the lamp axis and cross-arranged, cross-sectionally approximately V-shaped, reflecting transverse lamellae whose lamellae legs converge in the direction from said plane and, preferably are parabolic in cross section.
  • Luminaires according to the preamble of claim 1 are known from DE-PS 30 05 762. Their grids are formed by longitudinal reflectors which are parallel to the lamp and are arranged at right angles to it and have cross-sectionally approximately V-shaped reflecting transverse lamellae, the lamella legs of which are parabolic in cross-section. With these grids, however, only a part of the luminous flux is directed. The vertically emerging luminous flux component of the lamp passes unhindered through the grids and can therefore lead to strong brightening in the areas below it, for example to reflective glare if appropriately arranged at a work station.
  • the aim of the grid is also to direct the luminous flux of the elongated fluorescent lamp in the desired directions. This is easily accomplished in the transverse direction of the lamp, since the fluorescent lamp, which is tubular in cross-section, has a relatively small dimension in comparison to the cross-sectional area of the grid and thus approximately represents a point-shaped light source.
  • the lamp In the longitudinal direction, the lamp is very large compared to the space between two lamellae. Each slat segment is illuminated by a lamp section that is significantly longer than the slat segment. The directional angle of such a frame is therefore only very small in the longitudinal direction.
  • each prism causes a beam splitting by refraction.
  • the prism as an optical system is very small compared to the light source.
  • considerable scatter and total reflection occurs for the remaining large solid angle range, so that a very large scattering component is superimposed on the desired light control.
  • the unavoidable light conduction in such plastic prism covers also leads to such a high overall brightening of the cover, which creates glare effects at the work station located below.
  • the object of the invention is to direct the majority of the downward emerging luminous flux portion of the lamp in the longitudinal direction with the grid in the lower half-space in a luminaire of the type mentioned, so that only a very low luminous flux portion seen directly and unguided from the lamp in the lamp longitudinal direction passes through the grid.
  • This object of the invention is achieved on a lamp of the type mentioned at the outset, which is characterized in that a light guide plate which is directed obliquely to the lamp and extends almost to the lamp is arranged on one leg of each transverse lamella, and the space between this leg and the next adjacent transverse lamella is arranged covered.
  • the elongated lamp is subdivided into sections by the light guide plates reaching close to the lamp, each lamella or lamella segment being illuminated only by a certain short lamp section.
  • the light-directing "optical system” thus only receives light from a limited solid angle range.
  • the position of the "luminous" solid angle range can be changed in relation to the light-directing optics.
  • the desired main direction of emission can thus be predetermined in accordance with the desired light distribution of the luminaire, with no or no significant luminous flux component emerging directly from the grid. With the appropriate position of the transverse slats and their light guide plates, these lights are therefore particularly suitable for use as workstation lights in connection with display devices in which there are increased demands on glare-free properties.
  • FIG. 1 Under the lamp 3, which is not shown in the housing, a grid is placed below it, which is formed from longitudinal reflectors 2 parallel to the lamp and transverse cross-sections 3 which are V-shaped in cross section.
  • the legs 34 and 32 of these transverse slats forming reflectors are parabolic in cross section.
  • the slats are preferably made of high-gloss or satin-structured mirror material.
  • In each case on one leg 31 of the transverse lamellae 3 are arranged obliquely upwards at an angle a to the horizontal light guide plates 4, which extend almost to the lamp 1.
  • the light guide plates 4 are dimensioned such that they cover the space between adjacent transverse lamellae 3 in the vertical projection.
  • the rays 5 show, light mainly reflected on the lamella leg 31 emerges from the grid in the longitudinal direction of the lamp 1 in the illustrated luminaire. Due to the parallel arrangement of the light guide plates 4 to each other, a strong rectification of the reflected luminous flux is achieved.
  • two grid sections can be formed on a grid according to FIG. 2.
  • the light guide plates 4 B on the transverse lamellae 3 B diagonally towards the top right, so that a direction of luminous flux arises approximately corresponding to the beam 5 B.
  • the light guide plates 4 A on the transverse fins 3 A are directed obliquely to the left up to the lamp 1. The direction of luminous flux corresponds to the beam 5 A.
  • Asymmetrical luminous flux control is achieved with a grid light according to FIG. 3. All light guide plates 4 C are directed parallel to each other obliquely to the right up to the lamp 1. There is a directivity corresponding to the rays 5 C. The light distribution corresponds to the light distribution curve according to FIG. 3a.
  • a grid light according to FIG. 4 can be used in particular as a workplace light.
  • the grid of this light with the lamp 1 is again divided into two sections.
  • the light guide plates 4 E are formed on the transverse lamellae 3 E at an angle to the left up to the lamp 1.
  • To the left of the axis of symmetry are formed on the transverse lamellae 3 D obliquely to the top right, almost reaching to the lamp 1.
  • the indicated rays 5 D and 5 E show the pronounced preferred directions of the light distribution curve according to FIG. 4a.
  • Such a light distribution is particularly desirable for workplace lighting.
  • the spacing of the transverse slats can be constant or different.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Electroluminescent Light Sources (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Resistance Heating (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Optical Elements Other Than Lenses (AREA)

Claims (4)

1. Luminaire comprenant au moins un tube fluorescent rectiligne et un paralume qui est monté parallèlement à un plan passant par l'axe du tube et qui est constitué par des réflecteurs longitudinaux parallèles à l'axe de la lampe et par des lamelles transversales réflectrices dont la section est sensiblement en forme de V et qui sont montées de façon à croiser les réflecteurs, les ailes de ces lamelles, qui sont de préférence à section parabolique, convergeant l'une vers l'autre dans le sens opposé au plan précité, caractérisé par le fait qu'une des ailes (31) de chaque lamelle transversale (3) est munie d'une lame translucide (4) oblique par rapport à la lampe (1) et s'étendant sensiblement jusqu'à celle-ci en recouvrant l'espace compris entre cette aile et la lamelle transversale (3) avoisinante.
2. Luminaire selon la revendication 1, caractérisé par le fait que toutes les lames translucides (4, 4C) sont parallèles entre elles.
3. Luminaire selon la revendication 1, caractérisé par le fait que les lames translucides (4A, 4D et, respectivement, 4B, 4E) d'une partie déterminée sont opposées à celles de l'autre.
4. Luminaire selon la revendication 1, caractérisé par le fait que les lames translucides (4) sont fabriquées en une seule pièce avec l'aile correspondante (31) de la lamelle transversale (3).
EP85103159A 1984-03-31 1985-03-19 Lampe de forme allongée Expired EP0159534B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103159T ATE27350T1 (de) 1984-03-31 1985-03-19 Langgestreckte leuchte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3412162 1984-03-31
DE3412162A DE3412162C1 (de) 1984-03-31 1984-03-31 Langgestreckte Leuchte

Publications (2)

Publication Number Publication Date
EP0159534A1 EP0159534A1 (fr) 1985-10-30
EP0159534B1 true EP0159534B1 (fr) 1987-05-20

Family

ID=6232313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103159A Expired EP0159534B1 (fr) 1984-03-31 1985-03-19 Lampe de forme allongée

Country Status (14)

Country Link
US (1) US4621309A (fr)
EP (1) EP0159534B1 (fr)
JP (1) JPS60246503A (fr)
KR (1) KR850006472A (fr)
AT (1) ATE27350T1 (fr)
AU (1) AU4070585A (fr)
BR (1) BR8501487A (fr)
CA (1) CA1248929A (fr)
DD (1) DD231839A5 (fr)
DE (1) DE3412162C1 (fr)
DK (1) DK143685A (fr)
FI (1) FI851284L (fr)
NO (1) NO851176L (fr)
ZA (1) ZA851681B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4729075A (en) * 1985-05-29 1988-03-01 Brass John R Constant zone reflector for luminaires and method
DE3729838A1 (de) * 1987-09-05 1989-03-23 Thorn Licht Gmbh Leuchte mit mindestens einer stabfoermigen leuchtstofflampe
DE3834492A1 (de) * 1988-10-11 1990-04-12 Langmatz Lic Gmbh Leuchtanzeigeeinrichtung
NO167944C (no) * 1989-04-07 1991-12-27 Ifa Electric As Anordning ved lysroer-armatur
US5008791A (en) * 1990-07-19 1991-04-16 Caferro Ronald N Low direct glare and wall wash parabolic lighting grid
JPH07161217A (ja) * 1993-12-07 1995-06-23 Shinjiyu Kagaku Kenkyusho:Kk 色彩評価用照明装置
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
US5958326A (en) * 1997-09-05 1999-09-28 Caferro; Ronald N. Process for producing a lighting louver
DE29903298U1 (de) 1999-02-24 1999-05-12 Trilux-Lenze Gmbh + Co Kg, 59759 Arnsberg Leuchte
US6139169A (en) * 1999-04-01 2000-10-31 Caferro; Ronald N. Encased louvers for outdoor lighting
US6626560B1 (en) 2000-11-22 2003-09-30 Ronald N. Caferro Lighting louver
US6702453B2 (en) 2001-10-26 2004-03-09 Birchwood Lighting, Inc. Flexible light fixture
GB2411947B (en) * 2004-03-11 2007-07-11 Sortex Ltd Light guide assembly
DE102004017686A1 (de) 2004-04-10 2005-11-03 Trilux-Lenze Gmbh + Co Kg Ergonomische Deckenleuchte
US7246924B2 (en) * 2004-11-22 2007-07-24 Sylvan R. Shemitz Designs, Inc. High performance lighting louvers and luminaires
US7360929B2 (en) * 2005-04-15 2008-04-22 Sylvan R. Shemitz Designs, Inc. Luminaire with multi-purpose mounting feature
US8297819B2 (en) * 2009-03-20 2012-10-30 Sylvan R. Shemitz Designs Incorporated Light pipe structure and luminaire with light pipe structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005762C2 (de) * 1980-02-15 1981-10-29 Siemens AG, 1000 Berlin und 8000 München Leuchtenraster mit gekrümmten Außenreflektoren

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2169531A (en) * 1937-07-12 1939-08-15 James G Donovan Headlight construction
GB892536A (en) * 1958-08-08 1962-03-28 A E I Lamp And Lighting Compan Improvements relating to lighting fittings
DE1880828U (de) * 1963-06-11 1963-10-17 Siemens Ag Leuchte.
DE1622846A1 (de) * 1967-03-29 1970-11-26 Elek Ska Ab Exaktor Asymmetrischer Beleuchtungsschirm
CH473354A (de) * 1968-11-12 1969-05-31 Sulzer Ernst Blendschutzgehäuse für Beleuchtungen
DE1809036A1 (de) * 1968-11-15 1970-06-04 Ernst Sulzer Blendschutzgehaeuse fuer Beleuchtungen
DE2630556A1 (de) * 1976-07-07 1978-01-19 Shemitz Sylvan R Beleuchtungskoerper
DE2655702C3 (de) * 1976-12-09 1980-01-24 Trilux - Lenze Gmbh + Co Kg, 5760 Arnsberg Leuchtenraster für eine langgestreckte Lampe
US4238815A (en) * 1978-06-29 1980-12-09 Edison Price, Incorporated Recessed light fixture
DE2926202A1 (de) * 1979-06-29 1981-01-15 Alfred Korsch Raster, insbesondere leuchtenblendschutzraster fuer spiegelrasterleuchten
US4268897A (en) * 1979-07-23 1981-05-19 Templet Industries, Inc. Self-locking louver for lighting fixture
DE3030080C2 (de) * 1980-08-08 1984-10-18 Siemens AG, 1000 Berlin und 8000 München Langgestreckte Arbeitsplatzleuchte
US4429354A (en) * 1982-09-29 1984-01-31 Emerson Electric Co. Lighting fixture louver
US4494175A (en) * 1984-01-09 1985-01-15 Gte Products Corporation Recessed lighting fixture with improved louver mounting

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005762C2 (de) * 1980-02-15 1981-10-29 Siemens AG, 1000 Berlin und 8000 München Leuchtenraster mit gekrümmten Außenreflektoren

Also Published As

Publication number Publication date
JPS60246503A (ja) 1985-12-06
FI851284L (fi) 1985-10-01
FI851284A0 (fi) 1985-03-29
DE3412162C1 (de) 1985-08-29
DD231839A5 (de) 1986-01-08
DK143685A (da) 1985-10-01
EP0159534A1 (fr) 1985-10-30
NO851176L (no) 1985-10-01
KR850006472A (ko) 1985-10-05
ZA851681B (en) 1985-10-30
AU4070585A (en) 1985-10-03
US4621309A (en) 1986-11-04
CA1248929A (fr) 1989-01-17
BR8501487A (pt) 1985-11-26
DK143685D0 (da) 1985-03-29
ATE27350T1 (de) 1987-06-15

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