EP0125419B1 - Lampe de travail - Google Patents

Lampe de travail Download PDF

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Publication number
EP0125419B1
EP0125419B1 EP19840102761 EP84102761A EP0125419B1 EP 0125419 B1 EP0125419 B1 EP 0125419B1 EP 19840102761 EP19840102761 EP 19840102761 EP 84102761 A EP84102761 A EP 84102761A EP 0125419 B1 EP0125419 B1 EP 0125419B1
Authority
EP
European Patent Office
Prior art keywords
lamp
work
light
lighting
lamp body
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
EP19840102761
Other languages
German (de)
English (en)
Other versions
EP0125419A1 (fr
Inventor
Alfred R. Kraner
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.)
Durlum Leuchten GmbH Lichttechnische Spezialfabrik
Original Assignee
Durlum Leuchten GmbH Lichttechnische Spezialfabrik
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 Durlum Leuchten GmbH Lichttechnische Spezialfabrik filed Critical Durlum Leuchten GmbH Lichttechnische Spezialfabrik
Publication of EP0125419A1 publication Critical patent/EP0125419A1/fr
Application granted granted Critical
Publication of EP0125419B1 publication Critical patent/EP0125419B1/fr
Expired 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

Definitions

  • the invention relates to a workplace lamp, in particular for VDU workplaces with a spherical lamp body.
  • lighting is required to prevent frequent changes between special work at a specific point, such as e.g. B. is adapted to the screen and conventional desk work.
  • a specific point such as e.g. B. is adapted to the screen and conventional desk work.
  • the screen work For one activity, e.g. B. the screen work, a low level of lighting is desired, a high level of lighting may be required for conventional work at the desk or another place in the workplace. This cannot be achieved with the lamp according to DE-A-2 501 097.
  • the invention is therefore based on the object to provide a workplace lamp of the type mentioned, which fulfills opposing lighting requirements at different locations in the workplace, allows individual regulation of the lighting level and does not cause interference when it is used in a monitor workplace. At the same time, sufficient vertical illuminance should be achieved, but lamp replacement and maintenance should be easy.
  • the luminaire body is subdivided in that the upper half of the luminaire body in the assembled state has a lamp with a preferably adjustable reflector and an upwardly pointing light exit opening, and in that the lower half of the luminaire body in the assembled state about its vertical axis and a Horizontal axis is pivotable and has a lamp with a preferably parabolic reflector and an obliquely or directly downward light exit opening.
  • the predominantly indirect lighting achieves optimal contrast rendition values according to the «ESI method» (equivalent sphere llluminance), the vertical illuminance reaches a maximum of 1/2 to 2/3 of the horizontal illuminance, excessively high luminance jumps are avoided and remain in the ratio of 1 : 3: 10 according to DIN 5035 between screen, work area and environment. Interference reflections on the screen do not occur.
  • the visual performance is significantly increased by the improved visual conditions, without a high level of lighting.
  • the workplace lamp according to the invention allows the lighting to be individually adapted to the respective requirements. In this way, the actual workplace lighting can be switched off when working on a screen.
  • the indirect ceiling lighting results in a balanced, harmonious luminance distribution in the room and extremely low luminance contrasts on the ceiling. Interference reflections on the screen do not occur.
  • the workplace lamp can be switched on, the advantages of indirect ceiling lighting remain, the pivoting option of the workplace lamp allows the luminance to be individually adjusted at the desk.
  • VDU work and conventional work are carried out simultaneously or in rapid alternation, it is advantageous to switch on the actual workstation lamp and possibly increase the contrast on the screen somewhat. Due to the predominantly indirect lighting, optimal vertical and horizontal lighting is achieved, interference reflections on the screen do not occur. A reduction in visual performance is avoided by the high level of lighting.
  • the combination of room and workplace luminaires is energy-saving due to the reduction in general lighting from 750 lux to 450 lux. Fastening the luminaire to a mast (e.g. on a media column already available for cables) keeps the desk free, allows the heat generated to be dissipated and enables the luminaire location and direction of radiation to be changed individually. Further advantages, features and possible applications result from the figures described below.
  • Fig. 1 shows a schematic section through a luminous element of a workplace lamp according to the invention.
  • the luminous element 2 has a spherical shape and essentially consists of the two opaque hemispheres 4 and 6.
  • the upper hemisphere 4 contains a lamp 8 (for example high-performance lamp Osram HQI / TS) in a holder 10 and an adjustable reflector 12 which transmits the light throws to the ceiling through the light exit opening 14.
  • a lamp 8 for example high-performance lamp Osram HQI / TS
  • the lower hemisphere 6 contains a lamp 18 (eg Philips SL 25) in a socket and a parabolic reflector 20 which throws the light through the light exit opening 22 towards the work place.
  • the lower hemisphere 6 can be rotated about its vertical axis 24 and about a horizontal axis 23 (FIG. 2), the light cone of the lamp 18 - the actual workplace lighting - can be pivoted in this way.
  • the upper light exit opening 14 is closed with a domed cover plate made of silicate glass.
  • FIG. 2 shows a lamp 2 according to the invention, which is fastened to a media column (mast) 28 via an arm 27.
  • the lamp body consists of two hemispheres, the lower of which is rotatable about the axes 23 and 24.
  • the lamp body is pivotable about the mast 28.
  • the lower light exit opening 22 is closed with parabolically shaped longitudinal / transverse slats 32 matt anodized (darklight principle) against direct glare (luminance at 2: 60 ° beam angle to the vertical below 200 cd / sqm).
  • the air for heat dissipation enters at the lower light outlet opening and is sucked out of the air conditioning system by the arm 27 and mast 28 via flexible exhaust air hose (not shown) in the ceiling cavity.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (5)

1. Luminaire d'emplacement de travail, en particulier pour emplacements de travail à écran, avec corps de luminaire sphérique (1), caractérisé en ce que le corps de luminaire (2) est subdivisé, en ce que la moitié (4) du corps de luminaire (2) qui est en haut dans l'état monté présente une lampe (8) avec réflecteur (12), de préférence réglable, et une ouverture de sortie de lumière (14) tournée vers le haut, et en ce que la moitié (6) du corps de luminaire (2) qui est en bas dans l'état monté peut pivoter autour de son axe vertical (24) et d'un axe horizontal (23) et présente une lampe (18) avec réflecteur (20), de préférence parabolique. et une ouverture de sortie de lumière (22) tournée obliquement ou directement vers le bas.
2. Luminaire d'emplacement de travail selon la revendication 1, caractérisé en ce que le luminaire peut se fixer par un bras (27), de manière à pouvoir pivoter, à un mât vertical (28).
3. Luminaire d'emplacement de travail selon la revendication 1, caractérisé en ce que le luminaire peut être intégré à un mât vertical (28) par lequel la chaleur engendrée dans la lampe est dissipée.
4. Luminaire d'emplacement de travail selon l'une des revendications 1 à 3, caractérisé en ce que le corps de luminaire (2) est essentiellement formé de deux hémisphères opaques (4 et 6).
5. Luminaire d'emplacement de travail selon l'une des revendications 1 à 4, caractérisé en ce que de l'air peut être aspiré, pour la dissipation de chaleur, à l'ouverture de sortie de lumière (22) et à travers le bras (27) ainsi que le mât (28).
EP19840102761 1983-05-13 1984-03-14 Lampe de travail Expired EP0125419B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3317435 1983-05-13
DE19833317435 DE3317435A1 (de) 1983-05-13 1983-05-13 Arbeitsplatzleuchte

Publications (2)

Publication Number Publication Date
EP0125419A1 EP0125419A1 (fr) 1984-11-21
EP0125419B1 true EP0125419B1 (fr) 1987-11-11

Family

ID=6198889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840102761 Expired EP0125419B1 (fr) 1983-05-13 1984-03-14 Lampe de travail

Country Status (2)

Country Link
EP (1) EP0125419B1 (fr)
DE (1) DE3317435A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152197A (en) * 1937-11-26 1939-03-28 Century Lighting Inc Lighting fixture construction
US3609335A (en) * 1969-08-08 1971-09-28 American Sterilizer Co High intensity surgical light
DE2501097C3 (de) * 1975-01-13 1979-05-03 Bega Gantenbrink-Leuchten Ohg, 5750 Menden Sockel zum Befestigen und Zentrieren einer Leuchte
FR2319079A1 (fr) * 1975-07-25 1977-02-18 Simonet Bernard Dispositif de luminaire a fonctions multiples

Also Published As

Publication number Publication date
DE3317435A1 (de) 1984-11-15
EP0125419A1 (fr) 1984-11-21

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