EP0535416A1 - 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
EP0535416A1
EP0535416A1 EP92115462A EP92115462A EP0535416A1 EP 0535416 A1 EP0535416 A1 EP 0535416A1 EP 92115462 A EP92115462 A EP 92115462A EP 92115462 A EP92115462 A EP 92115462A EP 0535416 A1 EP0535416 A1 EP 0535416A1
Authority
EP
European Patent Office
Prior art keywords
lamp
workplace
light
housing
fixture
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.)
Granted
Application number
EP92115462A
Other languages
German (de)
English (en)
Other versions
EP0535416B1 (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 with at least one fluorescent lamp which can be suspended at a distance from the ceiling above the workplace, in which at least part of the light emerges from the top of the lamp and in which light emerges from two lamp sections spaced apart from one another in the longitudinal direction of the housing .
  • 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.
  • the present invention has for its object to provide a lamp of the type mentioned, in which the workplace is illuminated glare-free by indirect light, the lighting in the workplace produces good shadows and good contrasts (comparatively high CRF values).
  • a further indirect light component is generated in that light, which emerges from the light exit openings upwards, is reflected downwards by a glass reflector arranged at a distance above the lamp housing, which is preferably wider than the lamp housing arranged below it and which directs the light in such a way that it predominantly points to a falls in front of the work area arranged at the desk.
  • the glass reflector is weakly concave and parabolic or curved in a curved shape, and preferably its width to the right and to the left exceeds the width of the lamp housing arranged below it, so that the light reflected by the glass reflector is directed downwards on both long sides past the lamp housing two working areas of two frontally adjacent workplaces 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 downwards 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. You can also use polarized glass.
  • 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 contrasts in the area of the work area or areas, so that the luminaire has relatively high CRF values with simultaneous 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.
  • FIGS. 1 and 2 The illustration shows an elongated lamp 10 according to the invention, which is suspended from a ceiling by means of hangers 17 above a work table 28 in the longitudinal direction.
  • the lamp 10 is constructed in principle in three parts, seen in the longitudinal direction. It consists of a left-hand lamp part 14, in which fluorescent lamps are arranged (not shown in the drawing), a right-hand lamp part 16, in which fluorescent lamps are also arranged in the longitudinal direction (not shown) and a central part 15, which is the left-hand lamp part 14 and the right lamp part 16 mechanically connects. No lamps are arranged in the middle part 15. This can consist, for example, of one or more connecting rods or tubes. As can be seen from Fig.
  • the lamp is suspended in the longitudinal direction above the work table 28 so that the central part 15 is at the level of the work area 29 to be illuminated.
  • the two outer lamp parts 14 and 16 each have an elongated housing 12 which is closed toward the underside and, in the side view, approximately shell-shaped in the outer regions and which is formed at an acute angle on the underside in its central region 13.
  • the shape of the housing 12, 13 is from FIG. 3 somewhat more clearly recognizable.
  • the pointed angular bulge 13 of the housing in the middle creates a space in the housing which is suitable for accommodating a ballast 34 for operating the fluorescent lamps 30, 31.
  • the housing 12, 13 of the respective outer lighting part 14, 16 accommodates two adjacent reflectors 18, 19 in addition to the ballast, in which the fluorescent lamps 30, 31 are arranged in the longitudinal direction.
  • 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.
  • the 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 room light.
  • a portion of the light that strikes the glass reflector 11 is reflected due to the reflection on its glossy 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 light part 14 and into the housing of the other light part 16 (see also reference number 15 in FIG. 1 ).
  • the glass reflector On the suspension 39, 40 which supports the housing 12, the glass reflector can be fixed with adjusting rings 35, 36, with the lamp 39, 40 continuing 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 shading and therefore 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)
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 true EP0535416A1 (fr) 1993-04-07
EP0535416B1 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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574761A1 (fr) * 1992-06-17 1993-12-22 ZUMTOBEL LICHT GmbH Boîtier à vasque d'une armature lumineuse avec panier réfléchissant
DE4429888A1 (de) * 1994-08-24 1996-03-07 Koester Helmut Dipl Ing Archit Leuchten-Reflektordecken-Einheit
WO2003087656A1 (fr) 2002-04-18 2003-10-23 Koninklijke Philips Electronics N.V. Luminaire
CN107088301A (zh) * 2016-02-17 2017-08-25 智能台球照明有限责任公司 台球桌照明和比赛进行监视器

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US8523389B2 (en) * 2007-12-18 2013-09-03 Koninklijke Philips N.V. Illumination system with inclined light source
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

Citations (2)

* 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
GB2149079A (en) * 1983-10-28 1985-06-05 Bryan Robert Avery A lighting fitting

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2219383A (en) * 1937-02-13 1940-10-29 Harry J Dillon Illuminating apparatus
CH245828A (de) * 1943-12-10 1946-11-30 Brenner Eduard Beleuchtungseinrichtung.
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

Patent Citations (2)

* 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
GB2149079A (en) * 1983-10-28 1985-06-05 Bryan Robert Avery A lighting fitting

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574761A1 (fr) * 1992-06-17 1993-12-22 ZUMTOBEL LICHT GmbH Boîtier à vasque d'une armature lumineuse avec panier réfléchissant
DE4429888A1 (de) * 1994-08-24 1996-03-07 Koester Helmut Dipl Ing Archit Leuchten-Reflektordecken-Einheit
DE4429888C3 (de) * 1994-08-24 2003-11-27 Helmut Koester Leuchten-Reflektordecken-Einheit
WO2003087656A1 (fr) 2002-04-18 2003-10-23 Koninklijke Philips Electronics N.V. Luminaire
US7387408B2 (en) 2002-04-18 2008-06-17 Koninklijke Philips Electronics, N.V. Luminaire featuring light-transmitting counter reflector cover
CN107088301A (zh) * 2016-02-17 2017-08-25 智能台球照明有限责任公司 台球桌照明和比赛进行监视器
CN107088301B (zh) * 2016-02-17 2020-10-20 智能台球照明有限责任公司 台球桌照明和比赛进行监视器

Also Published As

Publication number Publication date
ATE119983T1 (de) 1995-04-15
JPH05205508A (ja) 1993-08-13
DE4132678A1 (de) 1993-04-08
EP0535416B1 (fr) 1995-03-15
US5272607A (en) 1993-12-21
DE59201657D1 (de) 1995-04-20

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