EP3396242B1 - Projecteur de lumière ainsi que système de projecteur et meuble de travail pourvu d'un tel projecteur de lumière - Google Patents

Projecteur de lumière ainsi que système de projecteur et meuble de travail pourvu d'un tel projecteur de lumière Download PDF

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Publication number
EP3396242B1
EP3396242B1 EP18169707.9A EP18169707A EP3396242B1 EP 3396242 B1 EP3396242 B1 EP 3396242B1 EP 18169707 A EP18169707 A EP 18169707A EP 3396242 B1 EP3396242 B1 EP 3396242B1
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EP
European Patent Office
Prior art keywords
light
spotlight
illuminant
approximately
designed
Prior art date
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EP18169707.9A
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German (de)
English (en)
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EP3396242A1 (fr
Inventor
Kornelius Reutter
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.)
Regent Beleuchtungskoerper AG
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Regent Beleuchtungskoerper AG
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Priority claimed from CH00569/17A external-priority patent/CH713727A1/de
Application filed by Regent Beleuchtungskoerper AG filed Critical Regent Beleuchtungskoerper AG
Publication of EP3396242A1 publication Critical patent/EP3396242A1/fr
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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
    • 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
    • F21S6/002—Table lamps, e.g. for ambient 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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0012—Furniture
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
    • 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
    • F21V23/0464—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 the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
    • 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
    • F21V23/0471—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 the sensor detecting the proximity, the presence or the movement of an object or a person
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a light emitter for generating a stream of visible light to a room ceiling according to the preamble of claim 1 as well as a light emitter system with at least one such light emitter and a work station furniture with such a light emitter.
  • a light emitter system with at least one such light emitter and a work station furniture with such a light emitter.
  • Such light emitters with a lamp for generating artificial light in the visible range and optics that are designed to form the flow of visible light from the light generated by the lamp can be used to irradiate and open walls and ceilings of rooms this way to illuminate rooms.
  • luminaires are used nowadays in different designs adapted to the respective application purpose. Most of the time, attempts are made to use the luminaires to generate light distribution curves that allow the best possible illumination when the luminaires are used as intended.
  • Standing lamps are also often used in offices to illuminate workplaces such as desks. Such lights can in part enable good illumination of individual workplaces, but they can and will impair the use of the room often perceived as annoying. In particular, such lights typically have to be set up close to a workstation for the best possible illumination of a workstation, which is often undesirable and, above all, impractical in the case of workstations that change regularly.
  • ceiling lights are also used, from which the workplaces are illuminated.
  • surface lights that are suspended from a room ceiling or built into a room ceiling and that specifically illuminate one or more workplaces.
  • Such surface lights can be designed to be relatively small and focused, or they can also be designed to be larger and wider.
  • ceiling lights Although workplaces can be preferentially illuminated by means of such ceiling lights, and although such lights are relatively less disruptive because they are not located in places where other things are placed or people are, they are still relatively inflexible. In particular in the case of regularly changing workplaces, for example in offices in which, for example, workstation groups are formed depending on the project, such ceiling lights are usually too inflexible because they have to be moved, realigned and configured. Such ceiling lights are also often undesirable for interior design, since they are typically permanently installed and therefore cannot be redesigned.
  • the object of the following invention is therefore to propose a system or components of a system which enables or enables a flexibly adaptable and configurable, specific illumination of workplaces in a room.
  • a light emitter for generating a stream of visible light on a room ceiling comprises a lighting means for generating artificial light in the visible range and optics.
  • the optics are designed to shape the flow of visible light from the light generated by the illuminant. It is also designed to define a light distribution curve of the light generated by the lighting means in such a way that a luminaire object with a homogeneous luminance can be generated on the ceiling of the room.
  • the term “light distribution curve” is understood to mean a characterization of the light emitted by a lamp, which can be represented in a graphic.
  • the light intensities of the luminaire in their different radiation directions are connected to one another to form a curve.
  • the light distribution describes the spatial distribution of the light.
  • the shape and symmetry of the light distribution characterize a depth or width and a symmetry of the radiation.
  • luminaire object as used in connection with the invention relates to a homogeneous, closed light surface with a defined boundary or sharp edges.
  • the luminaire object can have any shape on the ceiling. In particular, it can be round or polygonal on the ceiling and designed as a spot, for example.
  • defined limit in this context means a decrease in the luminance on the ceiling to a maximum of 10%, a maximum of 5% or almost 0%, which occurs over a maximum of about 30% of a diameter of the luminaire object or a central zone thereof.
  • the central zone can be an area of the luminaire object that cannot be assigned to the defined border, i.e. a border zone.
  • the diameter can be an approximate diameter.
  • the term “sharp edge” is understood to mean a decrease in luminance by at least about 20%, at least about 25%, at least about 30%, at least about 40% or at least about 50%, preferably to about 0%, this decrease being over a maximum of about 10% of the diameter of the luminaire object or a central zone thereof takes place.
  • luminance relates to the brightness of the luminous object on the ceiling, which acts as an extensive, two-dimensional light source. It can provide information about the location and direction of the light emitted by the luminaire object.
  • homogeneous luminance refers to the fact that the brightness is essentially the same over the surface of the luminaire object. In this context, “essentially the same” can be understood to mean that the brightness in the area of the luminaire object on the ceiling does not change by more than about 30% or about 20% or about 10% or about 5% or about 3%.
  • the light emitter can in particular be provided to emit light from bottom to top, in particular to a ceiling. It can be implemented in a relatively compact and light manner, for example as a stele or light stele.
  • the term "ceiling" can refer to an upper boundary of a room.
  • Room ceilings are not necessarily but typically horizontally aligned. They can be formed by plastered masonry, panels, stretched textile materials, metals or the like.
  • the room ceiling can be the ceiling of a closed or open room.
  • the luminous flux or beam can be a bundle of rays, a bundle of rays being understood to mean a number of light rays which run exactly or approximately parallel to one another or also predominantly in a similar direction.
  • the luminous flux can also have an angle of spread, as typically occurs with point light sources.
  • the light emitter according to the invention is designed to define a light distribution curve of the light generated by the illuminant for generating the luminaire object on the ceiling enables targeted illumination to be achieved in an efficient manner.
  • the generated luminaire object can specifically illuminate a workplace on the ceiling.
  • the term "workplace" can refer to a typically horizontal or quasi-horizontal surface on which certain activities are carried out.
  • the workplace can be a table surface and in particular one Surface of an office or desk.
  • it can be an area of a room with or without one or more tables.
  • it can comprise a flexibly assembled group of desks, such as is assembled, for example, for collaboration in a project.
  • the term "targeted illumination” can refer to the generation of a preferred LID by the luminaire object, that is to say a luminaire object LID.
  • the workplace should be sufficiently illuminated and glare should be avoided.
  • the targeted illumination does not create illumination of the workplace via basic lighting in the room, but rather specific illumination of the workplace that is independent of the basic lighting.
  • the illumination of the workplace differs from the general lighting of the room. For example, the workplace should often be lit brighter to allow comfortable reading and writing or working.
  • the light emitter makes it possible to use the luminaire object to create a virtual luminaire or a dematerialized luminaire on the ceiling of the room.
  • the quality of the ceiling can be included.
  • the term "texture" can relate to a composition of the room ceiling, its color, texture or the like.
  • the nature of the ceiling can define its reflection properties and its radiation characteristics.
  • the ceiling of the room can be designed in various ways in order to be suitable for producing the luminaire object.
  • the room ceiling can be a mirror ceiling or contain mirrors. With such a ceiling, the luminous flux can be used relatively directly and unchanged to generate the luminaire object, so that the luminaire object itself can emit a directed luminous flux.
  • the ceiling of the room can be equipped with a lime plaster, which enables the creation of a luminaire object that emits comparatively diffuse light.
  • the light emitter according to the invention enables the ceiling itself to be used efficiently as a component of a lighting system in order to illuminate the workplace.
  • the creation of a virtual lamp with the light emitter according to the invention enables great flexibility in the lighting and design of Jobs. For example, in rooms in which the workplaces change regularly, targeted lighting can be used that can be adapted to changes with relatively little effort. For example, it can be prevented that ceiling lights have to be moved around and / or standing or standing lights have to be rearranged in order to enable the individual workplaces to be illuminated in each case when the conditions change. Rather, a workstation at a different location in the room can be re-lit with or without realigning and possibly re-adjusting the light emitter.
  • the light emitter according to the invention enables new possibilities in room design.
  • the virtual luminaire can be perceived as a built-in luminaire without actually having to be installed.
  • the light emitter also enables workplaces to be appropriately illuminated in rooms in which it is not possible to incorporate or mount a light in or on the ceiling of the room.
  • the light emitter can be used to create ceiling lights on room ceilings that are not powerful enough for installation, that are insufficiently stable for installation or extension or that may not be changed, for example for reasons of monument preservation. There is also no need for an electrical connection on the room deck.
  • the light emitter can also be advantageous for relatively low room heights, since no structures protrude from the ceiling.
  • a lighting system implemented by means of the light emitter according to the invention can have the following advantages:
  • the lights or the light emitters can be designed relatively flexibly, since no large lamp head is necessary.
  • the system can be advantageous in terms of material expenditure.
  • the indirect lighting via the ceiling can be perceived as particularly pleasant.
  • Light graphics can also be generated.
  • self-adaptive lighting of workplaces as explained below, for example, can be implemented in real time without having to make adjustments.
  • the lighting system can be preferred when designing the room, since no stands or larger lighting objects have to be set up in the room. No shadow is created by direct light.
  • the light produced can give the impression of Come close to daylight, which is often perceived as pleasant. Maintenance and assembly can be relatively simple.
  • the light emitter according to the invention thus enables flexible, adaptable and configurable, specific illumination of workplaces in a room in a preferred quality.
  • the light emitter is preferably designed so that the homogeneous luminance of the luminaire object is a maximum of approximately 1,500 Cd / m 2 , a maximum of approximately 2,500 Cd / m 2 or a maximum of approximately 3,000 Cd / m 2 .
  • this luminance can provide a surface brightness that is perceptible to the eye of a beholder and that makes the entire luminaire object appear as a single surface. As a result, the luminaire object can act and appear as a surface luminaire.
  • the optics are preferably designed so that a brightness in an area of the luminaire object on the ceiling changes by less than about 30%, less than about 20%, less than about 10%, less than about 5% or less than about 3%.
  • the luminance can preferably be homogeneous, so that the luminaire object can appear and work flat.
  • the LID of the light emitter preferably has a greater light intensity between approximately 120 ° and approximately 170 ° and in particular at approximately 150 ° or approximately 165 ° than at 180 °.
  • the LID of the light emitter preferably has a maximum light intensity between approximately 120 ° and approximately 170 ° and in particular at approximately 150 ° or 165 °. With such a LID, a homogeneous luminance can be efficiently generated in the luminaire object.
  • the LID of the light emitter is preferably symmetrical. The light emitter can thus be directed essentially upwards.
  • the optics are designed to shape the light generated by the illuminant in such a way that the flow of visible light has a focal point that is spaced apart from the illuminant in a direction of radiation.
  • emission direction can refer here to a main direction in which the light beam generated by the light emitter or the beam propagates. In particular, it can run along the axis of the beam.
  • the focal point of the flow of visible light is spaced from the optics in the direction of emission.
  • a light emitter enables the generation of a so-called cross beam, i.e. a light beam with a taper or waist. This enables the beam or light beam to first expand relatively far from the illuminant. As a result, a comparatively compact beam can be achieved, which can be advantageous, for example, to prevent glare effects or to reduce scattered light.
  • the light emitter preferably comprises a screen through which the flow of visible light can be conducted. With such a screen, stray light can be intercepted. Glare or glare effects can also be reduced.
  • the diaphragm is preferably positioned in such a way that it can be arranged further away from the illuminant than the focal point of the flow of visible light when the illuminant generates light. As a result, the scattered light can be intercepted particularly efficiently and glare can be reduced.
  • the term "remotely arranged" also includes embodiments in which the screen extends from closer to the illuminant to further away from the illuminant. It is important that an effective part of the screen is further away from the lamp than the end of the optics that is remote from the lamp or a transparent cover as described below.
  • the diaphragm preferably comprises a sleeve section through which the stream of visible light passes when the illuminant generates light.
  • a sleeve section can enable the diaphragm to be implemented in a simple and efficient manner.
  • the sleeve section of the screen is preferably designed to be light-absorbing on its inside.
  • the diaphragm is preferably adjustable.
  • a screen enables glare control adapted to the specific use of the luminaire to be implemented.
  • the aperture can be set relatively high so that glare control is effective for people around the light emitter.
  • Such a light emitter can therefore be used flexibly in various different applications.
  • a distance between the optics and the diaphragm is preferably adjustable along an emission direction. This enables the anti-glare effect of the diaphragm to be set efficiently, in particular if it has a sleeve-shaped section.
  • the light emitter preferably comprises a sensor with which an illuminance of the light diverted back from the ceiling to the light emitter can be detected.
  • the light emitter preferably comprises an adjusting device which is designed to automatically adjust the lighting means in such a way that the illuminance detected by the sensor has approximately a predefined value. With such a light emitter it can be achieved that the luminaire object generated by it always illuminates an area around the light emitter with approximately the same intensity. If the light emitter is moved, for example to a place with a higher ceiling, the light emitter is automatically or manually readjusted until the illuminance has the predefined value again. This enables the light emitter to be used flexibly and efficiently in changing applications.
  • the predefined value can be at least about 300 lux or at least about 500 lux. Such illuminance levels are typically desired or preferred for illuminating workplaces and, in particular, office workplaces.
  • the light emitter preferably has a transparent cover through which the stream of visible light emerges from the light emitter when the illuminant generates light.
  • the cover can serve as dust protection, which can be advantageous in particular for generating a light beam or beam from bottom to top, since otherwise dust and other particles can get into the interior of the light emitter.
  • the cover is advantageously anti-reflective.
  • the light emitter preferably comprises a joint on which the optics and the illuminant are mounted so that the flow of visible light can be directed. Such a joint enables a simple and efficient alignment of the light beam or beam.
  • the light emitter further preferably comprises a foot by means of which it can be set up on a floor.
  • the term "floor” in this context can refer to any surface on which the light emitter should be set up. In particular, it can be a floor or a table surface such as a workplace.
  • the illuminant is preferably an LED illuminant with at least one light-emitting diode and in particular a COB-LED illuminant, a CSP-LED illuminant, an LED laser or an LED array.
  • COB Chip On Board.
  • COB means a technology in which unhoused semiconductor chips are mounted directly on circuit boards to form an electronic assembly.
  • LED stands for Light Emitting Diode.
  • CSP stands for Chip Scale Package. This can be understood as a chip housing for integrated circuits, the housing being able to make up a maximum of 20% more area than the die. For this purpose, the connections for assemblies can be connected to the die without bonding.
  • LED light sources can be beneficial for many reasons. For example, they are comparatively energy-efficient, so that the light emitter can have a comparatively high degree of effectiveness. They are also precisely configurable so that light adapted to an application can be generated efficiently. They are also comparatively durable. In particular, CSP-LED lamps also enable a relatively small overall size, so that the lamp can be comparatively small.
  • the illuminant is preferably designed in such a way that a luminous flux of the light generated by it is at least about 5,000 lumens or at least about 7,000 lumens and in particular between 9,500 lumens and 20,000 lumens or about 12,500 lumens or about 15 '' Has 500 lumens.
  • a luminous flux enables the luminaire object to be produced, as is preferred in many applications.
  • a luminaire object can be created that is suitable for illuminating workplaces in offices.
  • the light emitter preferably comprises a presence sensor and a switch-off unit.
  • the presence sensor is aligned in the direction of emission of the light emitter.
  • the switch-off unit is designed to automatically switch off the lighting means on the basis of a signal generated by the presence sensor.
  • Such a light emitter with a presence sensor and switch-off unit enables the light emitter to be switched off or dimmed immediately and automatically as soon as a person or an object is in front of it. This can For example, a person can be prevented from being dazzled by the light emitter and possibly even being harmed as a result. In this way, the safety and comfort of the light emitter can be improved during operation.
  • the light emitter preferably comprises a direct light illuminant for generating artificial light in the visible range and direct light optics which are designed to generate a direct light that is quasi turned away from the flow of visible light from the light generated by the direct light illuminant.
  • the flow of visible light can thus be directed upwards towards the ceiling and the direct light downwards towards a workplace, for example. This enables the workplace or a specific area thereof to be or can be ideally or additionally illuminated in a special way.
  • the direct light optics are preferably designed to define a light distribution curve of the direct light generated by the direct light illuminant in such a way that a workstation can be illuminated. There may be special guidelines or other requirements for workplaces that must be adhered to. With such direct light optics, these can be met efficiently.
  • the direct light optics are preferably designed in a segmented manner, so that they define a light distribution curve of the direct light generated by the direct light illuminant in such a way that several workplaces can be illuminated separately.
  • the direct light optics can, for example, have two, three or four segments. In this way, a corresponding number of workplaces can be specifically illuminated at the same time.
  • the direct light optics can be designed in one piece or also in several parts.
  • the light emitter preferably has a control with which the illuminant and the direct light illuminant can be controlled independently.
  • the control is a switch with which the direct light illuminant can be switched on or off.
  • direct light can be switched on when required at a workstation, for example for reading without using a screen, whereas the usual illumination of the workstation takes place via the luminaire object.
  • Another aspect of the invention relates to a light emitter system with a light emitter as described above and a sensor unit that can be placed independently of the light emitter.
  • the sensor unit has a sensor with which an illuminance of the light diverted from the ceiling to a target location can be detected.
  • the sensor unit enables the illuminance to be recorded at a target location such as a workstation that is independent of the light emitter.
  • the light emitter preferably comprises a communication interface and an actuating device and the sensor unit a communication interface.
  • the communication interface of the light emitter and the communication interface of the sensor unit are designed to transmit signals detected by the sensor of the sensor unit to the light emitter.
  • the adjusting device of the light emitter is designed to automatically adjust a lighting means of the light emitter on the basis of the signal received from the sensor unit in such a way that the illuminance has approximately a predefined value.
  • the generated luminaire object always illuminates an area around the sensor unit, which can be arranged, for example, on a workstation, with approximately the same intensity. If the light emitter or the workstation is relocated, which happens regularly, for example, with height-adjustable desks, the light emitter is automatically or manually readjusted until the illuminance has the predefined value again.
  • the predefined value can be at least about 300 lux or at least about 500 lux. Such illuminance levels are typically desired or preferred for illuminating workplaces and, in particular, office workplaces.
  • the light emitter system preferably comprises a multiplicity of light emitters. With such a light emitter system, several workplaces can be illuminated in a coordinated and coordinated manner.
  • the workplace furniture can in particular be a table or a desk or a meeting table.
  • the work station itself can include the lighting.
  • the spotlight can be moved or wandered with the workplace or office table.
  • the luminaire object on the ceiling of the room is also moved with it, and appropriate lighting can be provided regardless of where the workplace is positioned in the room. This enables extremely flexible and simple lighting of workplaces.
  • Fig. 1 shows a first embodiment of a light emitter system 2 according to the invention, which is set up in an office with a ceiling 5 and a desk. An upper side of a table top of the desk forms a work station 4.
  • the light emitter system 2 comprises a first exemplary embodiment of a light emitter 1 and a sensor unit 3 that can be positioned independently of the light emitter 1
  • the base plate 11 is set up on the table top or on the work station 4.
  • the light emitter 1 is aligned upwards towards the ceiling 5.
  • the light emitter 1 comprises a COB-LED illuminant 16 as illuminant, which is mounted in the area of a base of the reflector 12 and which can emit a luminous flux of approximately 12,500 lumens.
  • the reflector 12 is shaped, as it were, as a sleeve with parabolic inner surfaces and is penetrated by the light emitted by the COB-LED illuminant 16.
  • the reflector 12 is designed to form a stream of visible light or a luminous flux 41 or a beam from the light generated by the COB-LED lamp 16.
  • the luminous flux 41 has a focal point 411 which is spaced upwardly from the COB-LED illuminant 16 in an emission direction 161.
  • the diaphragm 13 can be adjusted upwards and downwards along the emission direction 161. It comprises a substantially sleeve-shaped section which is penetrated by the luminous flux 41 and which absorbs light on its inside.
  • the setting shown here lies the focal point 411 of the luminous flux 41 in the sleeve-shaped section and is thus covered by the diaphragm 13.
  • the aperture 13 thus intercepts scattered light of the luminous flux 41 and glare-free the light emitter 1 adapted to the respective application.
  • the light emitter 1 further comprises a presence sensor 19 and a switch-off unit.
  • the presence sensor 19 is aligned in the emission direction 161 and the switch-off unit is designed to automatically switch off the lighting means 16 on the basis of a signal generated by the presence sensor 19.
  • the reflector 12 is designed to produce a light distribution curve 6 of the light generated by the COB-LED lamp 16, as in FIG Fig. 3 to define represented.
  • the LVK 6 has a greater light intensity on both sides at around 165 ° than at 180 °. It has a maximum light intensity at around 165 °.
  • the luminous flux 41 generates a virtual luminaire object 51 on the room ceiling 5.
  • the luminaire object 51 has a homogeneous luminance.
  • the homogeneous luminance of the luminaire object 51 is a maximum of approximately 3,000 Cd / m 2 .
  • a brightness in the area of the lighting object 51 changes by less than 3%.
  • the luminaire object 51 itself in turn emits light 42, which corresponds to the reflected light of the luminous flux 41, in the direction of the workplace 4.
  • the light 42 of the luminaire object 51 illuminates the workplace 4.
  • the sensor unit 3 arranged on the workstation 4 comprises a first communication interface and a sensor with which an illuminance of the light 42 or the light 42 of the luminaire object 51 diverted from the ceiling 5 to the workstation 4 is detected.
  • the light emitter 1 is equipped with a second communication interface and an actuating device. Signals detected by the sensor of the sensor unit 3 can be transmitted to the light emitter 1 via the second communication interface and the first communication interface.
  • the adjusting device of the light emitter 1 automatically adjusts the COB-LED lamp 16 based on the signals received from the sensor unit 3, so that the illuminance has a predefined minimum value at the workplace 4 of approximately 500 lux.
  • the light emitter 1 also has a transparent cover 17 which covers the reflector 12 towards the top. In operation, the luminous flux 41 is passed through the cover 17 after passing through the reflector 12.
  • the light emitter 1 further comprises a further sensor 15 which is placed on the base plate 11 and with which the illuminance of the light 42 of the luminaire object 51 is detected.
  • the adjusting device of the light emitter 1 automatically adjusts the COB-LED lamp 16 on the basis of signals detected by the further sensor 15, so that the illuminance has the predefined minimum value of approximately 500 lux.
  • the further sensor 15 supplements the sensor unit 3 and the two can optionally be switched on and off.
  • Fig. 4 shows a second embodiment of a light emitter system 20 according to the invention with a second embodiment of a light emitter 10.
  • the light emitter system 20 is set up in an office with a ceiling 5 and a desk. An upper side of a table top of the desk forms a work station 40.
  • the light emitter 19 is designed as a floor lamp with a leg 150 having a foot.
  • the light emitter 10 has a lamp body 130 carried by the leg 150 which, in terms of lighting technology, is similar to that of the first light emitter from FIG Fig. 2 is trained.
  • it comprises an upper COB LED lamp as a lamp which can emit a luminous flux of around 12,500 lumens upwards via an upper reflector, a lower LED lamp as a direct light lamp and a lower reflector assigned to the lower LED lamp as a direct light optics, which together can emit direct light 430 downwards.
  • the luminaire body 130 is also equipped with an upper reflector which is designed to form a stream of visible light or a luminous flux 410 or a beam from the light generated by the upper COB-LED lamp.
  • the luminous flux 410 is directed upwards towards the ceiling 51.
  • the reflector and the lower reflector are designed to create a light distribution curve 60 of the light generated by the COB-LED illuminant and the LED illuminant, as in FIG Fig. 5 to define represented.
  • the LVK 60 has an indirect light component 610 and a direct light component 620.
  • the indirect light component 610 describes a greater light intensity on both sides at around 165 ° than at 180 °.
  • the direct light component 620 is virtually the opposite of the indirect light component 610. It describes a greater light intensity on both sides at around 40 ° than at 0 °.
  • the maximum light intensity of the entire LVK 60 in the indirect light portion 610 is around 165 ° on both sides.
  • the luminous flux 410 generates a virtual luminaire object 510 on the room ceiling 50.
  • the luminaire object 510 has a homogeneous luminance.
  • the homogeneous luminance of the luminaire object 510 is a maximum of around 3,000 Cd / m 2 .
  • a brightness in the area of the lighting object 510 changes by less than 3%.
  • the luminaire object 510 itself in turn emits light 420, which corresponds to the reflected light of the luminous flux 410, downwards.
  • the direct light 430 radiates downwards and evenly illuminates the workplace in an illuminated area 440.
  • a third embodiment of a light emitter system 29 according to the invention with a third embodiment of a light emitter 19 is shown.
  • the light emitting system 29 is similar to the light emitting system 20 of FIG Fig. 4 formed with a lamp body 139 having a lamp, a direct light lamp and associated reflectors. It is arranged in an office with a ceiling 50 and a workplace 49.
  • the upper illuminant and the associated upper reflector are designed to generate an indirect light component 619 of an LVK 69, which is designed analogously to the indirect light component 610 of the LVK 60 of the light emitter 20.
  • the lower illuminant or the direct light illuminant and the associated lower reflector are arranged in such a way that an asymmetrical direct light component 629 of the LVK 69 is generated.
  • the direct light component 629 is only directed to the right and has a maximum at almost 60 °.
  • this configuration of the LVK 69 allows, on the one hand, basic lighting in the room and, on the other hand, an illuminated surface 449 to be produced at an angle on the workstation 49. This allows the light emitter 19 to be set up laterally next to the illuminated area 449 on the work station 49.
  • the light emitter 19 is equipped with a table base 159 for this purpose.
  • the present disclosure also encompasses embodiments with any combination of features that are mentioned or shown above or below for various embodiments. It also includes individual features in the figures, even if they are shown there in connection with other features and / or are not mentioned above or below. The alternatives of embodiments and individual alternatives of their features described in the figures and the description can also be excluded from the subject matter of the invention or from the disclosed subject matter.
  • the disclosure includes embodiments that exclusively include the features described in the claims or in the exemplary embodiments, as well as those that include additional other features.

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

Claims (15)

  1. Projecteur de lumière (1) destiné à générer un flux de lumière visible (41) vers un plafond de pièce (5), comportant un moyen d'éclairage (16) destiné à générer une lumière artificielle dans le domaine visible et un système optique (12) qui est conçu pour former le flux de lumière visible (41) à partir de la lumière produite par le moyen d'éclairage (16), dans lequel le système optique (12) est conçu pour
    définir une courbe de distribution de lumière (6) de la lumière produite par le moyen d'éclairage (16) de telle manière qu'un objet lumineux (51) doté d'une luminance homogène puisse être produit au plafond de pièce (5), caractérisé en ce que le système optique (12) est conçu pour
    former la lumière produite par le moyen d'éclairage (16) de telle manière que le flux de lumière visible (41) présente un point focal (411) qui est espacé du moyen d'éclairage (16) et du système optique (12) dans une direction d'émission (161), de sorte que le flux de lumière visible soit un faisceau transversal.
  2. Projecteur de lumière (1) selon la revendication 1, conçu de telle manière que la luminance homogène de l'objet lumineux (51) soit au maximum d'environ 1 500 Cd/m2, au maximum d'environ 2 500 Cd/m2 ou au maximum d'environ 3 000 Cd/m2.
  3. Projecteur de lumière (1) selon la revendication 1 ou 2, dans lequel le système optique (12) est conçu de telle manière que la luminosité d'une surface de l'objet lumineux (51) au plafond de pièce (5) varie de moins de 30% environ, de moins de 20 % environ, de moins de 10% environ, de moins de 5% environ ou de moins de 3% environ.
  4. Projecteur de lumière (1) selon l'une des revendications précédentes, dans lequel la courbe de distribution de lumière (6) présente une intensité lumineuse maximale comprise entre environ 120° et environ 170° et en particulier d'environ 150° ou d'environ 165°.
  5. Projecteur de lumière (1) selon l'une des revendications précédentes, comprenant un capteur (15) permettant de détecter une intensité lumineuse de la lumière (42) redirigée du plafond de pièce (5) vers le projecteur de lumière (1), le projecteur de lumière (1) comprenant de préférence un dispositif de réglage conçu pour régler automatiquement le moyen d'éclairage (16) de telle manière que l'intensité lumineuse détectée par le capteur (15) présente approximativement une valeur prédéfinie
  6. Projecteur de lumière (1) selon l'une des revendications précédentes, comportant un couvercle transparent (17) à travers lequel le flux de lumière visible (41) est émis du projecteur de lumière (1) lorsque le moyen d'éclairage (16) produit de la lumière.
  7. Projecteur de lumière (1) selon l'une des revendications précédentes, dans lequel la source de lumière (16) est conçue de telle manière qu'un flux lumineux de la lumière qu'elle produit est d'au moins environ 5 000 lumens ou d'au moins environ 7 000 lumens et, en particulier, est compris entre 9 500 et 20 000 lumens et/ou d'environ 12 500 lumens ou d'environ 15 500 lumens.
  8. Projecteur de lumière (1) selon l'une des revendications précédentes, comprenant un capteur de présence (19) et une unité d'arrêt, dans lequel le capteur de présence (19) est orienté dans une direction d'émission (161) du projecteur de lumière (1), et dans lequel l'unité d'arrêt est conçue pour éteindre automatiquement le moyen d'éclairage (16) sur la base d'un signal produit par le capteur de présence (19).
  9. Projecteur de lumière (1) selon l'une des revendications précédentes, comprenant un moyen d'éclairage à lumière directe permettant de produire de la lumière artificielle dans le domaine visible et un système optique à lumière directe, qui sont conçus pour produire à partir de la lumière produite par le moyen d'éclairage à lumière directe une lumière directe quasi détournée du flux de lumière visible (41), de préférence le système optique à lumière directe est conçue pour définir une courbe de distribution de lumière directe produite par le moyen d'éclairage à lumière directe, de telle manière qu'un poste de travail puisse être éclairé.
  10. Projecteur de lumière selon la revendication 9, dans lequel le système optique à lumière directe est segmenté de manière à définir une courbe de distribution de lumière directe produite par le moyen d'éclairage à lumière directe, de telle manière que plusieurs postes de travail puissent être éclairés séparément.
  11. Projecteur de lumière selon la revendication 9 ou 10, comportant une commande permettant de commander indépendamment le moyen d'éclairage (16) et le moyen d'éclairage à lumière directe.
  12. Système de projecteur comportant un projecteur de lumière (1) selon l'une des revendications précédentes et une unité de détection (3) pouvant être placée indépendamment du projecteur de lumière (1), dans lequel l'unité de détection (3) comporte un capteur permettant de détecter une intensité lumineuse de la lumière (42) déviée du plafond de pièce (5) vers un emplacement cible.
  13. Système de projecteur selon la revendication 12, dans lequel le projecteur de lumière (1) comprend une interface de communication et un dispositif de réglage, et dans lequel l'unité de détection (3) comprend une interface de communication, dans lequel
    l'interface de communication du projecteur de lumière (1) et l'interface de communication de l'unité de détection (3) sont conçues pour transmettre les signaux détectés par le capteur de l'unité de détection (3) au projecteur de lumière (1), et
    le dispositif de réglage du projecteur de lumière (1) est conçu pour régler automatiquement un moyen d'éclairage (16) du projecteur de lumière (1) sur la base des signaux reçus de l'unité de capteur (3), de telle manière que l'intensité lumineuse présente approximativement une valeur prédéfinie.
  14. Système de projecteur selon la revendication 12 ou 13, comprenant une pluralité de projecteurs de lumière (1) selon l'une des revendications 1 à 11.
  15. Meuble de travail équipé d'un projecteur de lumière (1) selon l'une des revendications 1 à 11.
EP18169707.9A 2017-04-28 2018-04-27 Projecteur de lumière ainsi que système de projecteur et meuble de travail pourvu d'un tel projecteur de lumière Active EP3396242B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00569/17A CH713727A1 (de) 2017-04-28 2017-04-28 Lichtstrahler sowie Lichtstrahlersystem und Arbeitsplatzmöbel mit einem solchen.
CH1242018 2018-02-02

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EP3396242A1 EP3396242A1 (fr) 2018-10-31
EP3396242B1 true EP3396242B1 (fr) 2021-11-24

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EP18169707.9A Active EP3396242B1 (fr) 2017-04-28 2018-04-27 Projecteur de lumière ainsi que système de projecteur et meuble de travail pourvu d'un tel projecteur de lumière

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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CH717403A1 (de) 2020-05-13 2021-11-15 Regent Beleuchtungskoerper Ag Leuchte zum Aufstellen auf eine Oberfläche.

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US4001575A (en) * 1975-05-27 1977-01-04 Johns-Manville Corporation Luminaire and luminaire arrangement for lighting the ceiling within a room
US4218727A (en) * 1978-07-03 1980-08-19 Sylvan R. Shemitz And Associates, Inc. Luminaire
US4667275A (en) * 1979-06-08 1987-05-19 Peerless Lighting Corporation Luminaire for indirect lighting
US4386392A (en) * 1980-11-17 1983-05-31 Whiteway Manufacturing Co. Lighting unit for providing indirect light of uniform intensity
US8915611B2 (en) * 2011-04-08 2014-12-23 Lunera Lighting, Inc. Light well providing wide angle up lighting in an LED luminaire
CN104718410A (zh) * 2012-10-19 2015-06-17 皇家飞利浦有限公司 用于间接照明的光照设备
EP2949184B1 (fr) * 2013-01-25 2018-07-25 Philips Lighting Holding B.V. Dispositif et système d'éclairage
WO2015074154A1 (fr) * 2013-11-22 2015-05-28 Fluxwerx Illumination Inc. Éléments d'extraction de lumière pour une distribution de lumière indirecte
KR20160127216A (ko) * 2015-04-23 2016-11-03 주식회사 케이엠더블유 엘이디 조명장치

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