EP2418420A2 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
EP2418420A2
EP2418420A2 EP11175102A EP11175102A EP2418420A2 EP 2418420 A2 EP2418420 A2 EP 2418420A2 EP 11175102 A EP11175102 A EP 11175102A EP 11175102 A EP11175102 A EP 11175102A EP 2418420 A2 EP2418420 A2 EP 2418420A2
Authority
EP
European Patent Office
Prior art keywords
light
lighting device
lighting
lamp
asymmetric
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.)
Withdrawn
Application number
EP11175102A
Other languages
German (de)
English (en)
Other versions
EP2418420A3 (fr
Inventor
Klaus Cremer
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.)
tecnolight Leuchten GmbH
Original Assignee
tecnolight Leuchten 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 tecnolight Leuchten GmbH filed Critical tecnolight Leuchten GmbH
Publication of EP2418420A2 publication Critical patent/EP2418420A2/fr
Publication of EP2418420A3 publication Critical patent/EP2418420A3/fr
Withdrawn legal-status Critical Current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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
    • F21S6/008—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting with a combination of direct and indirect lighting
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • 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
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • 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
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • 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
    • 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
    • F21Y2113/00—Combination of light sources
    • 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
    • F21Y2113/20—Combination of light sources of different form
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting device for illuminating a room with at least one working zone comprising at least one first lighting means or a number of first lighting means, in particular at least one fluorescent lamp which (s) radiates a predominant proportion of light indirectly from the light up towards the ceiling or radiate and on the other hand, a lower proportion of light direct and directed by light directing elements downwards radiates or radiate, and further comprising at least a second different type of light source, in particular at least one LED, in the same lighting device.
  • a lighting device in which conventional light sources, for example fluorescent lamps are used, wherein the majority of the light emitted by these light is radiated upward to the ceiling, is for example in the DE 103 35 748 A 1 described.
  • this known luminaire is a ceiling pendant light and the predominant upward light emission is achieved in that the lamp housing is closed below this bulb and directed over Lichtleitbleche the light emitted by the conventional light predominantly upwards.
  • Such lights are used because of your Entblendungseigenschaften since the luminance is kept low directly below the light and the light directed downwards exits only in very specific angular ranges, so that a viewer blinded in a work zone neither direct insight into the lamp of the lamp is still the so-called reflected glare on screen surfaces or documents with glossy surface occurs.
  • the indirect light component emitted upward is reflected on the ceiling and contributes to brightening the room as diffused light.
  • this further Light source feeds light into an upper transparent plate-shaped cover. From this plate-shaped cover light is coupled via a raster printing as stray light and emitted over the surface of the plate-shaped cover. This leads to an optical brightening of the plate-shaped cover for the viewer.
  • the amount of light emitted by the other bulbs is comparatively low and is not directed radiated, so it is at most an additional effect lighting.
  • this proportion of light has no range and does not shine into the room, for example, in the case of a light suspended near a window.
  • lamps with fluorescent lamps are known from the prior art, which have an asymmetric light emission. These may, for example, have a conventional grid on which an additional mirror is plugged or, for example, an asymmetrical mirror grid is used to achieve the asymmetrical light distribution.
  • asymmetric radiation is desired to radiate the light into the room toward a working zone.
  • conventional luminaires are used for this, there is the problem with larger room depths that the luminaire suspended near the window does not radiate far enough into the room so that the requirements of the standard for the minimum achievable illuminance levels are not met. It is therefore usual in these cases, in addition to arrange a second parallel lamp (or row of lights) further in the room. In this solution, of course, increases the energy required for the lighting of the room as well as the cost of installation.
  • Object of the present invention is to provide a lighting device of the type mentioned available, which ensures a standard lighting of the working zone and achieved a higher energy efficiency in the applications mentioned.
  • the second other type of luminous means emits directed light directly into the room, starting from the illuminating device at an inclined angle and / or vertically upward in the direction of the ceiling (indirect Light) and / or from the lighting device at an inclined angle and / or vertically downwards (direct light).
  • the photometric idea consists in the additional use of other types of illuminants (referred to herein as “second” illuminants) in the same lighting device, so to speak, "two levels of illumination", each with direct light output to the utility plane (working zone) and indirect light exit with deflection across the ceiling or to create another deflecting element.
  • the first lighting level usually uses fluorescent lamps, for example, efficient fluorescent lamps of the latest generation and these provide sufficient light intensity in the direct workplace area and the basic brightness in the room depth.
  • the second illumination plane preferably generates the illuminance required in the spatial depth by means of indirectly and / or directly emitting LEDs, which are in particular separately switchable, so that even greater depths of space are illuminated when a single luminaire is arranged in a room, for example close to the window.
  • the switching on of the second lighting means can be done as required, resulting in energy savings and a much more flexible solution compared to the arrangement of a second light in the same room.
  • At least one light-guiding element generates asymmetrical light-emitting radiation of the LEDs with respect to a vertical plane, in particular with respect to a vertical longitudinal center plane of the lighting device.
  • the second light sources can then illuminate the opposite vertical surface of a wall indirectly, for example, in the case of asymmetrical radiation of a luminaire arranged near the window, thus contributing to brightening the room.
  • An adaptation to the respective room heights and depths can for example be done via the light control of the second light source (LEDs), so that a narrow or wide light intensity distribution is achieved as needed.
  • the LEDs can be variably aligned as needed with a proportion of direct light as needed, for example, via joints, a ball head technique or a gimbal attachment.
  • This lighting technology is particularly suitable for suspended ceiling luminaires, floor lamps and wall luminaires, in the case of a purely direct-radiating variant, however, the principle can also be implemented in recessed ceiling luminaires.
  • a plurality of lighting units of the type according to the invention can be arranged one behind the other in the longitudinal direction, wherein the individual units can also be connected to one another, for example via modular adapters or connecting elements, so that lighting systems result in which the lighting apparatus are arranged in rows.
  • the outer design of the lights according to the invention can vary over a wide range, depending on the type of luminaire and application. For example, can be used for the construction of the luminaire housing profiles made of aluminum or plastic or other mechanically formable, suitable for luminaire construction materials.
  • the floor plan of a single lighting device may, for example, be rectangular, in particular elongated rectangular, but the invention is not limited to this plan shape.
  • the first lighting means that is to say the fluorescent lamps
  • the second light-emitting means there are preferably two variants in this case. These are arranged either along the longitudinal side of the lamp housing next to the fluorescent lamps or in a head-side area behind or in front of the fluorescent lamps. It also depends on the arrangement of lighting devices according to the invention in the room to be illuminated.
  • Either the lighting devices are suspended parallel to the window of the room and then preferably have an asymmetrical emission starting from a longitudinal side into the room. Or one arranges the lighting devices at right angles to the window of the room, wherein the LEDs are then preferably arranged in a head-side area on the side facing the space of the lamp and thus radiate the second light source from the end of the lamp into the room.
  • direct light is emitted from the LEDs so that it falls on the work zone.
  • the LEDs assign light-guiding elements, in particular at least one lens or a reflector or a lens or reflector system.
  • the LEDs for example, give off indirect light so that it falls on a wall of the room and from there contributes as a scattered light to brighten the room.
  • the preferred asymmetrical light emission of the first luminous means used with respect to a vertical longitudinal center plane of the illumination device, with respect to the indirect light component radiated upward from the first luminous means and / or the direct light component radiated downward from the first luminous means can be generated, for example, by passing the light source first illuminant or the first light emitting means associated with an asymmetric parabolic grid, an asymmetric reflector or an asymmetric prismatic disk or Mikroprismenfunction.
  • a lighting device in a lighting device according to the invention, supportive daylight is used, for which purpose the lighting device has, for example, a sensor module comprising at least one daylight sensor and a control device for daylight-dependent control of the brightness of the first and / or second lighting means.
  • the second light source can be switched on, for example, even if not enough light in the depth direction enters the room. This results in energy savings, wherein the functionality of the lamp with respect to the first lighting means and the lighting of the work zone can be maintained, even if the second lighting means are turned off.
  • the lighting device may comprise a presence sensor, as well as a control device for controlling the brightness and / or for switching on and off the first and / or the second lighting means.
  • the first and / or second lighting means which are preferably switchable independently of each other, can thus be switched on in each case when a person is in the work zone or enters the room.
  • the predominant portion of the light emitted by the first lighting means is emitted indirectly from the light upwards.
  • the emitted upward light portion is preferably between about 60% and about 80% of the total emitted by the first and the second light source light.
  • this indirect light component can also amount to up to 90% of the total light emitted by the luminaire.
  • FIG. 1 a lighting device 10 according to the invention is shown from the front side. It may, for example, be a luminaire with an elongated rectangular plan, in which case the front side 11 is the narrow side. Essentially, these three light components are emitted, namely via the first lighting means, namely fluorescent lamps, a predominantly indirect light component 12 towards the top and at the same time via this first lighting means a smaller directed direct light component 13 towards the bottom.
  • second lighting means are provided (the lighting means are not shown here), which in this case emit a further indirect light component 14 towards the top.
  • the indirect light component 12 and the direct light component 13 are radiated asymmetrically towards a longitudinal side of the luminaire.
  • the view of the long side 15 of the lamp according to FIG. 2 illustrates that the direct light portion 13, which is emitted from the first bulbs downwards, directed from the outside to the center falls, so as to illuminate a workplace glare-free.
  • FIG. 3 shows a standard room according to DIN V 18599 in plan. It is shown to be illuminated working zone 16 with two workstations, where, for example, two people sitting opposite each other.
  • the space is rectangular and has dimensions of 4.80 length, the longitudinal wall is denoted by 17, and 3.60 m in width, the transverse wall is denoted by 18.
  • the minimum illuminance in the work zone 16 on the workplace surface must be 500 lx.
  • the work zone 16 is closer to a window turned, which would be located on the transverse wall 18 in the drawing on the left.
  • the illuminance must be is still 200 Ix or 300 Ix, which means that the light levels of the lighting devices must be designed so that they emit light far enough into the depth of the room, so that not only the work area is illuminated glare-free, but also behind the work area still achieved illuminance levels can be achieved.
  • FIG. 4 shows a perspective view of an exemplary ceiling pendant luminaire 20 according to the invention with asymmetric radiation.
  • the luminaire 20 is rectangular in plan and has an elongated luminaire housing.
  • the fluorescent lamp (or possibly a plurality of fluorescent lamps) extends in the longitudinal direction of the housing.
  • a luminaire grid 19 associated with the fluorescent lamps is arranged off-center in the housing of the luminaire.
  • the radiation of the direct and the indirect light component is therefore carried out asymmetrically predominantly to one side with respect to the longitudinal center plane through the luminaire housing, as shown schematically in FIG FIG. 1 is shown, to the longitudinal side of the lamp, from which the light grid 19 is further removed, that is in the drawing according to FIG. 4 to the left.
  • LEDs 21 are arranged beyond the luminaire grid 19 as additional illuminants, which can emit light indirectly and directly, ie, upwards and downwards.
  • additional illuminants which can emit light indirectly and directly, ie, upwards and downwards.
  • subsequent coupling and sensor modules 23 may be a lighting device of in FIG. 4 shown in the longitudinal direction can be extended by more similarly constructed lighting units.
  • this coupling module 23 and sensors 24 for a daylight-dependent brightness control of the bulbs and presence sensors or motion detectors can be accommodated.
  • Lights of in FIG. 4 can be hung in a room, for example, as shown in FIG. 5 is shown.
  • the lights 20 hang in the space near the window and parallel to the window 25.
  • the work zone lies beyond the luminaires in the room approximately in the middle of the room and is illuminated due to the asymmetrical radiation of the lights.
  • the fluorescent lamps of the lights also give the LEDs from light into the room when switching on, ie away from the window in the direction of the opposite wall 27, in which the door 26 is located.
  • FIG. 6 shows the suspension situation of the two lights 20 of FIG. 5 in the view, looking in the direction of the window 25. It can be seen that these are suspended ceiling luminaires which are suspended at an appropriate distance below the ceiling 28, the example room having a comparatively large ceiling height.
  • the radiation of the direct light downwards takes place in a crosswise direction in each case in the longitudinal direction from outside to inside, as in the schematic diagram according to FIG FIG. 2 is hinted at, but at the same time because of the asymmetric radiation into the room as in FIG. 5 indicated by the arrows.
  • FIG. 7 Another embodiment of a working according to the invention lighting principle floor lamp 30 is in FIG. 7 shown. Also, this floor lamp can be in a room like him in FIG. 5 Shown is parallel to the window and placed near the window and then radiate asymmetrically into the room. The light emission takes place predominantly asymmetrically to a longitudinal side of the floor lamp 30 out.
  • the luminaire housing 29 of the floor lamp 30 again elongated and approximately rectangular in plan.
  • the floor lamp 30 has a lamp base 31, from which a standpipe 32 leads vertically upwards, at the upper end of the lamp housing 29 is arranged, which is supported by the standpipe 32.
  • the second lamps 33 are mounted in this floor lamp along a longitudinal side as you also off FIG. 8 can recognize the light 30 of FIG. 7 in cross section through the upper area shows a little enlarged. As a result, these second light sources 33 can emit their light directed towards the desired side, in this case as direct light downward, as indicated by the light cone in FIG FIG. 8 is indicated.
  • a sensor 35 for detecting the brightness or presence of a person in the work zone may be attached to the underside of the luminaire.
  • the indirect light component (upwards) is generated in this floor lamp 30 via the first lighting means 34 (fluorescent lamps), wherein in the example of which three are arranged side by side in parallel in the longitudinal direction of the lamp housing.
  • the fluorescent lamps 34 are each assigned asymmetrical reflectors 36.
  • the indirect light component can be generated in this luminaire 30 exclusively by the first luminous means 34, so that the luminaire housing can be closed on the underside-except for the lateral light exit for the LEDs 33. For example, you can achieve a ratio of 90% indirect and only 10% direct light emission.
  • FIG. 9 A further schematic sketch for the light emission of a lighting device 40 according to the invention is shown in FIG. 9 shown.
  • This luminaire shows another variant of the illumination principle according to the invention, which is suitable for a different installation situation or suspension situation (for pendant luminaires).
  • This lamp 40 can be in a room of the type described above (see FIG. 3 and FIG. 5 ) perpendicular to the window instead of parallel to the window.
  • there are three light components that are in FIG. 9 are outlined, namely once the indirect light component 37, which is emitted from the first bulbs (fluorescent lamps) upwards. Furthermore, these first bulbs also give off a direct light component 38 directed downwards.
  • LEDs are again provided as the second lighting means, which can be arranged, for example, in the region of one longitudinal end of the elongated luminaire and which in this example emit an indirect light component 39 upwards, as shown in FIG. 9 sees, is radiated asymmetrically into the room, when the lamp is arranged perpendicular to the window.
  • the leds are then located at the end of the elongated luminaire facing away from the window.
  • This lamp with the in FIG. 9 sketched radiation can for example be a floor lamp as in the Figures 10 and 11 is shown.
  • the luminaire housing 41 on the standpipe 32 is not aligned transversely, but rests longitudinally aligned, that is, in the elongated luminaire housing 41, one end is mounted on the standpipe 32, so that the luminaire housing protrudes from its underside attachment point.
  • This projection extends in the above-described installation situation from the window side into the room.
  • the arrangement of the lamps results from the enlarged longitudinal sectional view through the lamp housing 41 according to FIG. 11 ,
  • the first bulbs 42 fluorescent lamps
  • the first bulbs 42 in turn extend in the longitudinal direction of the housing, but because of the other arrangement of the lamp in the room so now different than at FIG. 7 into the room.
  • the luminaire can be arranged parallel to each other depending on the dimensions of the luminaire and required power several fluorescent lamps, which can be seen in the sectional view FIG. 11 can not recognize.
  • light-directing elements For the escape of indirect light (see 37 in FIG. 9 ) upwards may be provided light-directing elements, but it can also be provided for example only an upper transparent cover.
  • the second lighting means 44 (LEDs) are arranged in this case in front of the first lighting means 42 at the front end of the housing and thus on the side facing the room. Reflectors 45 may be associated with each of these second light sources 44, as shown in the enlarged view in FIG FIG. 16 is better recognizable. By such asymmetric reflectors can in turn achieve a directional radiation into the room. The light is thus directed by the second bulbs 44 directed at the front end of the lamp housing indirectly upwards (see light portion 39 in FIG. 9 ).
  • a sensor 46 may be located, which fulfills the aforementioned functions (daylight-dependent and / or presence-dependent control).
  • FIG. 12 shows a suspended ceiling light 50, which operates on a similar photometric principle, as previously described with reference to the floor lamp 40.
  • the lamp 50 can be hung in a room so that it is aligned perpendicular to a window.
  • the light is in FIG. 12 shown so that you look at the long side.
  • the first lighting means 47 are again elongated fluorescent lamps which extend in the longitudinal direction of the housing, ie in the drawing from right to left or from left to right.
  • the first lighting means 47 emit indirect light upwards and direct light downwards again.
  • the second luminous means 48 can be accommodated, for example, in a separate end region 49 behind or in front of the first luminous means, ie in a head-side region at a longitudinal end of the luminaire.
  • the second light-emitting means 48 are in turn LEDs that emit their light asymmetrically predominantly in the direction away from the light, as in the previously described embodiment by using, for example, suitable reflectors, as indicated by arrows in FIG FIG. 12 is indicated.
  • suitable reflectors as indicated by arrows in FIG FIG. 12 is indicated.
  • each LED 44/48 is preferably associated with such a reflector 45, wherein the LED 44 itself may also be arranged tilted as in the drawing FIG. 16 so that the asymmetrical radiation predominantly results towards one side and thus away from the longitudinal side of the luminaire.
  • FIG. 13 shows an enlarged view of the end region 49 of the lamp of FIG. 12 in the supervision. It can be seen that a plurality of fluorescent lamps 47, for example, two or three may be next to each other. In the end region 49, in addition to the LEDs, control devices 52, sensors, ballasts for the lamps and the like can be accommodated.
  • FIG. 14 shows the lamp 50 according to FIG. 12 and 13 again in an enlarged section through the end region 49. In FIG. 14 is also a presence and daylight sensor 53 in the end region on the underside of the lamp recognizable. The light emission of the light emitted by the LEDs light can only upwards, so indirectly, take place (see also 39 FIG. 9 )
  • FIG. 15 shows the same area of the lamp 50 as in FIG. 13 and 14 but from the bottom.
  • the light exit opening is covered there, for example, by a light-directing prismatic lens 54, which provides for direct directed and glare-free light emission of the light emitted by the first light means 47 downwards and thus glare-free at the workplace.
  • the lamp is rectangular in plan (with only the left part is shown) and that both sides in the longitudinal direction next to the light exit opening for the first lamp each frame elements 55 extend, which limit a rectangular light exit opening (prismatic lens 54) on both sides.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP11175102.0A 2010-08-10 2011-07-22 Dispositif d'éclairage Withdrawn EP2418420A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202010011239U DE202010011239U1 (de) 2010-08-10 2010-08-10 Beleuchtungsvorrichtung

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Publication Number Publication Date
EP2418420A2 true EP2418420A2 (fr) 2012-02-15
EP2418420A3 EP2418420A3 (fr) 2013-10-30

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EP11175102.0A Withdrawn EP2418420A3 (fr) 2010-08-10 2011-07-22 Dispositif d'éclairage

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DE (1) DE202010011239U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012104138U1 (de) * 2012-10-29 2014-02-04 Zumtobel Lighting Gmbh Arbeitsplatzleuchte
CN110985940A (zh) * 2019-12-24 2020-04-10 上海粲高教育设备有限公司 一种可调节垂直照度的平面灯具

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012218521A1 (de) * 2012-10-11 2014-04-17 Zumtobel Lighting Gmbh Steuerungssystem für verteilt angeordnete Verbraucher, insbesondere für Lampenbetriebsgeräte, sowie Verfahren zur Inbetriebnahme des Systems
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CN110985940A (zh) * 2019-12-24 2020-04-10 上海粲高教育设备有限公司 一种可调节垂直照度的平面灯具

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