EP0535416B1 - Dispositif d'éclairage de travail comprenant au moins une lampe fluorescente - Google Patents

Dispositif d'éclairage de travail comprenant au moins une lampe fluorescente Download PDF

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Publication number
EP0535416B1
EP0535416B1 EP92115462A EP92115462A EP0535416B1 EP 0535416 B1 EP0535416 B1 EP 0535416B1 EP 92115462 A EP92115462 A EP 92115462A EP 92115462 A EP92115462 A EP 92115462A EP 0535416 B1 EP0535416 B1 EP 0535416B1
Authority
EP
European Patent Office
Prior art keywords
lighting fixture
reflector
light
fixture
glass
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
EP92115462A
Other languages
German (de)
English (en)
Other versions
EP0535416A1 (fr
Inventor
Manfred Grimm
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 EP0535416A1 publication Critical patent/EP0535416A1/fr
Application granted granted Critical
Publication of EP0535416B1 publication Critical patent/EP0535416B1/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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • 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
    • 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
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37—U-shaped
    • 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
    • F21Y2113/00—Combination of light sources

Definitions

  • the present invention relates to a workplace lamp.
  • DE-OS 33 01 277 describes a workplace lamp in which an exit opening is provided in the central region of the housing, from which light rays emerge towards the top and are thrown onto the ceiling, so that these light rays cause indirect diffuse illumination which brightens the surroundings .
  • this luminaire two light exit openings spaced apart from one another in the longitudinal direction of the housing are also provided, which are open toward the underside of the luminaire.
  • These light exit openings on the underside of the luminaire have light-guiding elements, for example in the form of a grid, which essentially direct light from the two spaced-apart light exit openings in the end regions of the luminaire downward and towards one another Let it come out so that the workplace is illuminated by light coming in at an angle from the sides.
  • a workplace lamp with the features of the preamble of claim 1 is known from GB-A-2 149 079.
  • the present invention has for its object to provide a luminaire of the type mentioned, in which the workplace is illuminated glare-free by indirect light, the lighting at the workplace producing good shadows and good contrasts (comparatively high CRF values).
  • the glass reflector is slightly concave and parabolic or curved in a circular shape and exceeds its width to the right and to the left towards the width of the lamp housing arranged below it, so that the light reflected by the glass reflector directed on both long sides past the lamp housing down to two Working areas of two frontally adjacent workplaces fall where two people can sit opposite each other.
  • the proportion of light that passes through the glass reflector upwards and is radiated towards the ceiling and the proportion of light that goes down from the glass reflector reflected, can be varied by selecting the glass used.
  • Glass types are known which, for example, have a surface reflection of the order of about 10%.
  • the proportion of surface reflection can, however, be chosen to be lower or significantly higher by choosing other glasses.
  • Polarized glass can also be used.
  • the indirect light which is reflected downwards by the glass reflector, comes from a left outer luminaire section and a right outer luminaire section and thus falls predominantly from oblique lateral directions onto the illuminated work area or areas, while no light is generated in a central luminaire section.
  • This middle luminaire section merely forms the mechanical connection between the two outer luminaire sections.
  • light generated by the lamps in the two outer lamp sections falls on the glass reflector, which preferably extends over the entire length of the lamp and the portion of this light reflected on the glass reflector also emerges downwards in the middle section of the lamp and contributes to illuminating the lamp or the fields of work at.
  • the light portion reflected by the glass reflector produces good shading and good contrast in the area of the work area or areas, so that the luminaire has relatively high CRF values, while at the same time glare-free illumination of the work area or areas.
  • the luminaire thus meets the high requirements of workplace lighting for certain professional groups such as graphic designers.
  • a direct light emission downwards is not provided.
  • Light rays 37, 38 emerge from the fluorescent lamps 30, 31 directly upwards and strike the upper reflector 11, which is curved with a relatively large radius of curvature. That part of the light which passes through the glass reflector 11 (see beam 37a shown in dashed lines) is emitted towards the ceiling and reflected from there, so that this light component contributes to the diffuse ambient light. A portion of the light that strikes the glass reflector 11 is reflected due to the reflection on its shiny surface and is thus emitted downwards in the direction of the work table. This is illustrated by way of example using the reflected rays 37, 37b and 38, 38b.
  • connection of the two outer lamp halves 14, 16 can, for example, via the in the corners of the housing 12th
  • tubes 32, 33 are arranged, which can extend in the longitudinal direction through the housing 12 of the left lamp part 14 and into the housing of the other lamp part 16 (see also reference number 15 in FIG. 1 ).
  • the glass reflector can be fixed with adjusting rings 35, 36, with the tubes 39, 40 which continue in the tubes 17 above the glass reflector 11 also suspending the lamp as a whole from the ceiling can be.
  • the lamp is designed in such a way that a diffuse light component that is emitted towards the ceiling is combined with a light component that is reflected on the glass reflector 11 and directed light, whereby the latter light component produces better shade and thus better contrasts, that is to say higher CRF values at the workplace.
  • the working area 29 is illuminated only with indirect light, which mainly falls from the lateral lighting parts 14, 16 onto the working area from a lateral direction.
  • the lamp 10 according to the invention has a relatively wide beam due to the glass reflector 11 lying above the housing 12, 13. The beams 24a, 27a and 25a, 26a reflected by the latter (see FIG.

Landscapes

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

Claims (5)

  1. Dispositif d'éclairage de travail comprenant au moins une lampe fluorescente qui est suspendable à distance d'un plafond d'une pièce au-dessus d'une place de travail, la sortie de la lumière directe ayant lieu exclusivement vers la partie supérieure du dispositif d'éclairage,
    avec une boîte (12) allongée en forme d'une coupe en section transversale
    et avec un réflecteur (11) arrangé à distance au-dessus de la boîte (12, 13), au moyen duquelle la lumière sortant vers le haut du dispositif d'éclairage est réfléchie vers le bas en direction de la place de travail (28),
    le réflecteur (11) dépassant en large la boîte (12, 13) des deux côtés
    et le réflecteur comprenant une courbure en travers sur l'axe longitudinal du dispositif d'éclairage,
    caractérisé en ce que le dispositif d'éclairage de travail est composé d'une partie gauche (14) dans laquelle des lampes fluorescentes sont arrangées, une partie droite (16) dans laquelle des lampes fluorescentes sont arrangées également et une partie intermédiaire (15) qui joint la partie gauche (14) à la partie droite (16) en manière mécanique et dans laquelle il n'y avait pas une lampe fluorescente,
    et en ce que le réflecteur (11) est un réflecteur en verre, une partie de la lumière luisant à travers du réflecteur de sorte qu'elle rayonne vers le plafond de la pièce, tandis qu'une partie de la lumière qui tombe sur le réflecteur en verre (11) est réfléchie en raison de la réflexion à sa surface et est déviée vers le bas sur la place de travail.
  2. Dispositif d'éclairage de travail selon la revendication 1, caractérisé en ce que les deux parties extérieures (14, 16) du dispositif d'éclairage qui sont à distance l'une de l'autre sont conjugées en manière mécanique par des barres ou tubes (20) formant la partie intermédiaire (15) du dispositif d'éclairage.
  3. Dispositif d'éclairage de travail selon la revendication 1 ou 2, caractérisé en ce que le réflecteur en verre (11) s'étend dans la direction longitudinale sur toutes les trois parties (14, 15, 16) du dispositif d'éclairage.
  4. Dispositif d'éclairage de travail selon une des revendications 1 à 3, caractérisé en ce que le réflecteur en verre (11) comprend en travers sur l'axe longitudinal du dispositif d'éclairage une faible courbure concave, de préférence une courbure parabolique ou circulaire vers le haut.
  5. Dispositif d'éclairage de travail selon une des revendications 1 à 4, caractérisé en ce que le réflecteur en verre (11) est composé d'une qualité de verre avec une réflexion superficielle de l'ordre de environ 10 % ou est composé d'un verre polarisé.
EP92115462A 1991-10-01 1992-09-10 Dispositif d'éclairage de travail comprenant au moins une lampe fluorescente Expired - Lifetime EP0535416B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4132678A DE4132678A1 (de) 1991-10-01 1991-10-01 Arbeitsplatzleuchte mit mindestens einer leuchtstofflampe
DE4132678 1991-10-01

Publications (2)

Publication Number Publication Date
EP0535416A1 EP0535416A1 (fr) 1993-04-07
EP0535416B1 true EP0535416B1 (fr) 1995-03-15

Family

ID=6441908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115462A Expired - Lifetime EP0535416B1 (fr) 1991-10-01 1992-09-10 Dispositif d'éclairage de travail comprenant au moins une lampe fluorescente

Country Status (5)

Country Link
US (1) US5272607A (fr)
EP (1) EP0535416B1 (fr)
JP (1) JPH05205508A (fr)
AT (1) ATE119983T1 (fr)
DE (2) DE4132678A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219742A1 (de) * 1992-06-17 1993-12-23 Zumtobel Licht Wannenleuchte mit Reflektorkorb
DE4429888C3 (de) * 1994-08-24 2003-11-27 Helmut Koester Leuchten-Reflektordecken-Einheit
US5727870A (en) * 1996-05-01 1998-03-17 Ledalite Architectural Products, Inc. Indirect asymmetric luminaire assembly
IT1315564B1 (it) 2000-12-12 2003-02-18 Marvon Srl Guarnizione intumescente rinforzata
US7387408B2 (en) 2002-04-18 2008-06-17 Koninklijke Philips Electronics, N.V. Luminaire featuring light-transmitting counter reflector cover
US6871993B2 (en) * 2002-07-01 2005-03-29 Accu-Sort Systems, Inc. Integrating LED illumination system for machine vision systems
US8522494B2 (en) * 2004-03-11 2013-09-03 Barco, Inc. System for creating a tensioned wall composed of individual LED tiles
RU2480801C2 (ru) * 2007-12-18 2013-04-27 Конинклейке Филипс Электроникс Н.В. Осветительная система, светильник и устройство подсветки
US8002446B1 (en) 2008-06-09 2011-08-23 Koninklijke Philips Electronics N.V. Virtual direct and indirect suspended lighting fixture
US7950833B1 (en) 2008-06-17 2011-05-31 Genlyte Thomas Group Llc Splay frame luminaire
US8282248B1 (en) 2008-12-03 2012-10-09 Koninklijke Philips Electronics N.V. Luminaire including upper and lower dome-shaped optical elements
CN103185263A (zh) * 2011-12-30 2013-07-03 北京谊安医疗系统股份有限公司 一种用于医用吊桥的环境照明灯装置
CN103591508B (zh) * 2013-10-23 2016-04-27 中国中元国际工程有限公司 兼具环境照明的工位照明灯具
US9827483B2 (en) 2014-08-01 2017-11-28 Smart Billiard Lighting LLC Billiard table lighting and game play monitor
US9485399B2 (en) 2014-08-01 2016-11-01 Smart Billiard Lighting LLC Billiard table lighting and game play monitor
USD835652S1 (en) 2015-12-10 2018-12-11 Smart Billiard Lighting LLC Display screen with transitional graphical user interface of a billiard game
JP6873730B2 (ja) * 2016-02-17 2021-05-19 スマート ビリヤード ライティング エルエルシー ビリヤードテーブル照明及びゲームプレイモニタ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1447238A (en) * 1919-12-03 1923-03-06 Crownfield David Lighting fixture
US2219383A (en) * 1937-02-13 1940-10-29 Harry J Dillon Illuminating apparatus
CH245828A (de) * 1943-12-10 1946-11-30 Brenner Eduard Beleuchtungseinrichtung.
GB8328869D0 (en) * 1983-10-28 1983-11-30 Avery B R Lighting fitting
JPH07114082B2 (ja) * 1988-11-25 1995-12-06 鹿島建設株式会社 照明器具
US5097401A (en) * 1990-07-09 1992-03-17 Ross Eppler Indirect lighting modifiers for use with fluorescent fixtures

Also Published As

Publication number Publication date
US5272607A (en) 1993-12-21
ATE119983T1 (de) 1995-04-15
DE59201657D1 (de) 1995-04-20
EP0535416A1 (fr) 1993-04-07
JPH05205508A (ja) 1993-08-13
DE4132678A1 (de) 1993-04-08

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