EP3896331A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
EP3896331A1
EP3896331A1 EP21154197.4A EP21154197A EP3896331A1 EP 3896331 A1 EP3896331 A1 EP 3896331A1 EP 21154197 A EP21154197 A EP 21154197A EP 3896331 A1 EP3896331 A1 EP 3896331A1
Authority
EP
European Patent Office
Prior art keywords
work table
light
irradiating
lighting device
lamp
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.)
Pending
Application number
EP21154197.4A
Other languages
German (de)
English (en)
Inventor
Dipl.-Ing. Markus Canazei
Wilfried Pohl
Dipl.-Ing. Christian Reisecker
Georg Spielberger
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.)
Bartenbach Holding GmbH
Original Assignee
Bartenbach Holding 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 Bartenbach Holding GmbH filed Critical Bartenbach Holding GmbH
Publication of EP3896331A1 publication Critical patent/EP3896331A1/fr
Pending 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
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • 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
    • F21V23/0485—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 physical interaction between a user and certain areas located on the lighting device, e.g. a touch sensor
    • 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
    • F21V7/04—Optical design
    • 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
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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
    • F21Y2113/10—Combination of light sources of different colours

Definitions

  • the present invention relates to a lighting device for illuminating a workplace on a work table, with a flat visible body, which is arranged upright on at least one side of the work table opposite the workplace and is designed as a reflector, as well as at least one light assembly for irradiating the visible body and irradiating the work table.
  • the lighting of a workplace is subject to a variety of requirements. Basically, of course, the first thing to do is to illuminate the work table with sufficient light intensities in such a way that sufficient brightness is guaranteed on the work table and objects on the work table are clearly visible without dazzling the person at the work place. At least the area of the work table of interest should be illuminated as evenly as possible or in accordance with the visual requirements regarding, for example, the illuminance, the uniformity, the color rendering or the freedom from reflections, in order not to tire the user due to different brightnesses of the surface to be viewed. At the same time, however, it is important to ensure that no shadows impair visibility.
  • Such shading can for example occur when the light comes slightly at an angle from behind, so that a user bent over the table shadows part of the table with his head or upper body, but too flat or abrasive irradiation of the work table can lead to thick books or other objects that are towering up on the table cast shadows.
  • the work table is irradiated centrally from above, slightly from the side of the table opposite the work station, in order to avoid the shadowing problem mentioned as far as possible, on the other hand, reflective glare can occur if the table surface or objects on it reflect the relatively steeply incident light and at an angle from below throw it into the eyes of the user.
  • the lighting device should also meet various non-visual effects.
  • non-visual effects which are sometimes also called biological light effects, influence the well-being of users, who usually spend longer times at work, and are important for health and performance, for example with regard to the circadian rhythm or sleep-wake- Rhythm, possible winter depression or other body functions such as serotonin production and melatonin release.
  • Such non-visual lighting effects are now widely recognized and are also the subject of scientific publications and standards.
  • the melatonin suppression to be avoided at night is defined as a melanopic light effect by a corresponding effect factor, which is a measure of the influence of a light source on the circadian rhythm and depends, for example, on the color temperature or the spectrum and intensity of the light.
  • a corresponding effect factor which is a measure of the influence of a light source on the circadian rhythm and depends, for example, on the color temperature or the spectrum and intensity of the light.
  • a corresponding effect factor which is a measure of the influence of a light source on the circadian rhythm and depends, for example, on the color temperature or the spectrum and intensity of the light.
  • High illuminance levels or lux numbers are necessary on the eye. So that there is no glare, the light should come from as large an area as possible.
  • the lighting task is made even more difficult by the fact that the mentioned requirements are not always required to the same extent or are not always the same. If, for example, the work table is used by a highly active user on a cloudy day or in the morning with little daylight in the work room, the non-visual lighting effects are less important, but more the sufficient illumination of the work table for good visibility of the objects on it at. Conversely, if the workplace is used by a rather sleepy person, the non-visual lighting effects may be more helpful. Regardless of the users and the daylight conditions, the workplace can also be used differently depending on different tasks.
  • any shadow cast on the table surface is less disturbing than an impairment of the luminosity and contrast strength of the screen or the screen display, while conversely, when examining an object on the table surface, a shadow cast by the computer screen can be very disturbing and it is less important that the screen appears high-contrast.
  • the present invention is therefore based on the object of creating an improved lighting device of the type mentioned, which avoids the disadvantages of the prior art and further develops the latter in an advantageous manner.
  • the lighting device should equally meet the requirements for the visual lighting effect such as uniformity of the illumination, freedom from shadows, glare and color rendering as well as the requirements for the non-visual lighting effect under different conditions of use.
  • the at least one lamp assembly comprises separately controllable lamp modules for irradiating the said viewing body on the one hand and the work table on the other hand independently of one another.
  • the work table or objects located on it can be irradiated or illuminated differently than the panel-like viewing body, which reflects the light radiated on it and at least partially directs it onto the user's eyes.
  • the properties relevant for the visual light effects such as illuminance and luminance as well as the properties responsible for the non-visual effects such as melanopic lumens, EDI stimulus and blue light damage can be optimized in equal measure.
  • the said work table can classically be an office table, but it can also include other work surfaces such as a kitchen counter, a standing desk, a workbench or even mixed function tables such as a lounge table.
  • the luminaire modules mentioned can have different main radiation directions in order to be able to primarily irradiate different spatial areas.
  • the cited separately controllable luminaire modules can also have radiation spaces that do not overlap one another, so that there is no intermixing with regard to the light emitted in each case.
  • the radiating space of the lamp module or modules for irradiating the reflective light panel or body can be contoured and aligned in such a way that the light essentially only falls on the named viewing body.
  • the emission space of the lamp module or modules for irradiating the work table can be contoured and aligned in such a way that the light coming from this or these lamp modules essentially only falls on the work table.
  • the at least one lamp module for irradiating the upright, reflective visual corpus can have a main radiation direction that is directed at the named visual corpus, while the at least one lamp module for irradiating the work table has a main radiation direction that is directed at the work table.
  • the multiple lamp modules of the said lamp assembly can nonetheless be accommodated in a common housing and / or mounted on a common carrier and / or combined to form a unit that appears to be uniform.
  • the lamp modules can form an elongated, for example linear or bar-shaped lamp assembly, which can be arranged above the work table.
  • such an elongated light assembly can be parallel to the table surface and essentially parallel to the edge of the table at which a user is sitting or stands, be arranged above the work table in order to irradiate the work table and the upright viewing panel arranged on the work table from above.
  • the light assembly can advantageously be spaced from the edge of the table on which a user is sitting or standing and offset to the side of the table opposite the user.
  • the light assembly can be arranged above the table half facing away from the user. If a monitor is arranged on the work table, the screen surface of which is possibly aligned slightly inclined to the vertical, the said light assembly can be arranged above the said monitor in a plane or directly adjacent to it, which goes through the screen surface of the monitor.
  • the light assembly can be mounted on the visible body, wherein a light carrier can be provided protruding from an upper edge region of the visible body over the work table in order to hold the light assembly above the work table. Said carrier can protrude from the visible body over the work table in the manner of a gallows.
  • the light assembly is advantageously spaced a little from the viewing body, in particular towards the side of the table on which the user is seated or standing as intended.
  • said visible body can form a flat panel or an essentially flat, only slightly curved reflector surface which can be arranged upright on the table side opposite the user, said visible body being mounted on the work table or also attached to a stand can be standing on the ground.
  • Said visible body does not necessarily have to be designed in the form of a flat panel, but can optionally also be contoured in the shape of a shell or a double shell and / or include side wings that extend on a right and / or left narrow or longitudinal side of the work table can. Independent of such side wings, the visible body can optionally also have a roof-shaped arching or a roof-like section above the table.
  • the panel-like, reflective visible body can advantageously be arranged in the immediate vicinity or directly on the work table. Such close proximity to the workplace allows the lighting device to work very efficiently and cover a large solid angle for the eye, especially in comparison to the illumination of room walls and ceilings, which is sometimes used to achieve vertical luminance levels in the room by diffuse reflection.
  • the at least one light assembly can advantageously have several light modules for irradiating the work table, the said several light modules each irradiating only a section of the work table and being separately or individually controllable in order to illuminate different zones of the work table in different ways to be able to.
  • the luminaire modules mentioned can have overlapping or separate, non-overlapping radiation spaces, so that overlapping sections of the work table or sections of the work table that do not overlap can be irradiated.
  • the named lamp modules for irradiating the work table can be separately dimmable and / or switched on and off separately in order to generate different brightness levels on different zones of the work table.
  • the named lamp modules can also be varied separately from one another with regard to their light color, for example in order to illuminate a right half of the table more warm white and a left half of the table more cold white.
  • Such a zone-wise different lighting of the work table can not only be helpful for different tasks on different work table sections to be able to do. For example, when reading a book on the left half of the table, it can be helpful to brightly illuminate the left half of the table with a spectrum similar to daylight, while less bright, warm light can be shone on the right half of the table when looking at photos on the right half of the table. Independently of this, in the middle of the table, if there is a computer screen there, for example the light radiated onto the table by a corresponding lamp module can be dimmed down in order to increase the brilliance of the screen display.
  • Irradiation of the work table can, independently of this, also be helpful in order to adapt the illumination of the work table to the daylight and / or room situation. For example, if one side of the work table is close to a window, a table section near the window can be illuminated more brightly than a table section lower in the room in order to adapt the artificial light scenario for illuminating the work table to the daylight scenario of the room.
  • the multiple lamp modules for irradiating the work table can be arranged in a row next to one another, in particular along the longitudinal extent of the aforementioned elongated lamp assembly.
  • the lamp modules for zone-wise irradiation of the work table can complement one another in such a way that together they irradiate the work table uniformly and at least essentially completely.
  • the luminaire modules mentioned can have emitting spaces that complement and / or overlap one another in such a way that the table surface of the work table or a room above it can essentially be completely irradiated with uniform light intensities.
  • a plurality of lamp modules can also be provided for irradiating the visible body, which lamp modules can have emission spaces that overlap or which do not overlap one another and that do not overlap, the aforementioned emission spaces these lamp modules can each be directed to the visible body.
  • the named lamp modules for irradiating the visible body can also be arranged in a row next to one another, in particular along the longitudinal extent of the aforementioned elongated lamp assembly.
  • the visible body In principle, however, it would also be possible to irradiate the visible body with only one lamp module, such a lamp module, for example, having a linear optical element, for example a linear reflector. As an alternative or in addition, it would also be possible to irradiate the visible body with light, for example, by means of a centrally arranged radiator, or to irradiate it with light by a plurality of radiators, for example from a left-hand side and a right-hand side.
  • the panel-like visible body mentioned which extends upright on the work table, can in particular be irradiated according to the so-called wallwasher principle.
  • the lamp module (s) for irradiating the panel-like visual body can be arranged in the region of an upper edge section of the visual body at a distance therefrom in the direction of the user in order to irradiate the visual body from above in a dragging manner.
  • the luminaire module or modules can have a suitable optical element, for example in the form of a reflector and / or a lens, in order to design the light intensity distribution so that the viewing body has at least approximately uniform illuminance over its height.
  • the light modules for irradiating the work table and the light modules for irradiating the panel-like visible body can advantageously be arranged in the immediate vicinity of one another.
  • the named lamp modules can form two rows of modules which are arranged parallel to one another, in particular directly adjacent to one another, and can be accommodated in an elongated lamp housing and / or attached to a common elongated lamp carrier.
  • the luminaire modules mentioned are designed and arranged in such a way that the light sources of the luminaire modules are not visible to a person using the workplace as intended. If a user sits or stands in the intended manner on a side of the work table that is opposite the named visual corpus, the light sources of both the light modules that illuminate the work table and the light sources of the light modules that illuminate the visual corpus are shielded from the field of vision of the named user.
  • Such a dimming of the light sources of the lamp modules can be achieved, for example, by a common, for example, bar-shaped lamp housing edge.
  • the lamp modules can also have, for example, shell-shaped or double-shell-shaped reflectors that are designed and aligned in such a way that they cover the respective associated light sources from the intended field of view of the user.
  • the above-mentioned clamshell or clamshell-shaped reflectors can face the user with their back when the latter is sitting or standing on the intended side of the table.
  • the concavely curved, light-technically active sides of the above-mentioned clamshell or clamshell-shaped reflectors can face the visible body.
  • the light sources of the lamp modules can be arranged on the side of the reflectors facing away from the user and / or facing the viewing body.
  • the light source can radiate towards the user, but the light emitted by the light sources is captured by the shell-shaped reflectors and the light sources are preferably completely covered by the reflectors.
  • the said viewing body can be designed with a relatively large area in an advantageous development of the invention, the reflective surface of the said viewing body, which reflects light towards the workplace, for example at least 0.5 m 2 or even can be more than 1 m 2 or more than 2 m 2 .
  • the panel-like visible body on the table side opposite the workstation can extend over more than 50% or more than 75% of the table width or the length of the mentioned opposite table side.
  • the visible body can protrude essentially along the entire opposite side of the table, so that the width of the visible body can essentially correspond to the table width.
  • said visible body can extend over a height of, for example, 0.5 m to 1.5 m, wherein said visible body can extend over the edge of the table in said manner, for example start directly at the edge of the table and 0, Can end 5 m to 1.5 m or 0.6 m to 1.0 m above the edge of the table.
  • the extent and arrangement of the viewing body can be adapted to the binocular field of view in order to cover a sufficiently large area of the binocular field of view.
  • the binocular field of view comprises different areas, for example the central field of vision, the near-peripheral field of vision, which has an extension of approximately twice 30 °, and the middle-peripheral field of vision, which has an extension of approximately twice 60 °.
  • the viewing body can advantageously cover at least the central field of view of about twice 30 °, for example a field of view of twice 30 ° to twice 90 ° or twice 30 ° to twice 60 ° in cover in the horizontal direction.
  • the viewing body can cover a field of vision up to approximately the horizontal, the cover also somewhat in the vertical direction can end below the horizontal or go beyond the horizontal.
  • the direction of view of a user who is intended to be at the workplace is directed obliquely downwards onto the work surface, with the binocular field of view usually assuming that 50 ° above the focused point and 70 ° below the focused point can be detected in the vertical direction. If one then assumes that the main direction of view of the user will go obliquely downwards on the work table and / or on the monitor, it may be sufficient if the viewing body covers the field of vision up to the horizontal in the vertical direction.
  • the panel-like visible body advantageously leaves the entire surface of the work table free in order to be able to use the entire work table in a conventional manner.
  • the panel-like visible body can be provided directly on a rear edge of the table.
  • the surface of the panel-like visible body facing the workplace can be designed to be diffusely reflective, it being possible for example to provide a diffuse degree of reflection of more than 80% or even more than 90%.
  • the reflective visible surface of the visible body can be designed to be bright white with a certain surface roughness.
  • At least a part of the surface of the said visible body that faces the workplace can be designed to reflect in a preferred direction, the said preferred direction - taking into account the light modules that irradiate the visible body - to the opposite workplace and / or to the Can be directed to spatial area in which the face of the user is intended.
  • the visible body can have a scale-like reflector structure and / or a Fresnel-like surface structure and / or a facet-like reflector structure that comes from the light assembly
  • Light is specifically reflected to the opposite side of the work table onto a user located there.
  • a specifically radiating reflector structure By means of such a specifically radiating reflector structure, relatively high luminance densities can be achieved very efficiently in the user's field of vision at the workplace, whereby the user can absorb high amounts of light via the pupils. This increases the efficiency of the viewing body considerably.
  • a further increased separation or decoupling of the visual effects of the lighting device from its non-visual effects is achieved.
  • such a facet-like reflector structure of the visible body can have more than 50 or more than 100 or even more than 200 such reflector facets or scales.
  • the viewing body can also reflect part of the reflected light, preferably onto the work table, in order to reduce the formation of shadows on the work table and to increase the uniformity of the illumination.
  • the viewing body can also bring about a mixture of directional reflection and diffuse reflection.
  • a part of the surface of the viewing body can be designed to be facet-like or reflective in the manner mentioned, while another subsection of the viewing body or the reflective surface of the viewing body is designed to be diffusely reflective.
  • the lamp modules for irradiating the work table can also differ from the lamp modules for irradiating the visible body with regard to the emittable light color or temperature and / or with respect to the emittable spectra of the light emitted in each case.
  • the light radiated onto the viewing body can be optimized with regard to its non-visual lighting effect, while the light radiated onto the work table can be designed as close to daylight as possible and / or color-fast.
  • the light radiated onto the viewing body can preferably be optimized with regard to its melanopic effectiveness.
  • at least one lamp module for irradiating the viewing body can be configured in such a way that the light reflected from the viewing body has a high melanopic effect factor and / or avoids a blue light hazard, i.e. a photochemical hazard in the sense of the so-called blue light hazard.
  • a high melanopic effect factor can be achieved while avoiding the risk of blue light by adding cyan light or the light of a cyan LED to the light thrown onto the viewing body and / or emitting cyan light.
  • Such cyan light can have a relatively high intensity in the wavelength range from 490 nm to 530 nm or up to 520 nm, while in the wavelength range below 470 nm and / or in the wavelength range greater than 530 nm the light intensity is only a fraction of the peak intensity and / or very low is.
  • the at least one light module for irradiating the viewing body can be configured in such a way that relatively high intensities (radiation levels) are present in the wavelength range from approximately 470 nm to 550 nm or from 480 nm to 540 nm or 490 nm to 530 nm, while in wavelength ranges less than 470 nm nm and / or greater than 550 nm, relatively low intensities are present.
  • the at least one lamp module for irradiating the viewing body can, however, also have other operating modes with other light colors and / or spectral distributions in order to be able to provide other light effects.
  • the named lamp module can be designed to be changeable with regard to its primary light color and / or its spectral distribution, for example by assigning several LEDs of different light color as a light source to the lamp module.
  • Different colored LED clusters can be used, which can be variably controlled in order to realize different light colors and / or spectral distributions.
  • the at least one lamp module for irradiating the work table can advantageously be designed close to daylight with regard to its spectral distribution and / or have an operating mode close to daylight.
  • the light module for irradiating the work table can also be designed to be variable with regard to its spectral distribution and / or light color, for example by means of LEDs of different colors, which can be assigned to the respective reflector and / or the respective lens.
  • the at least one lamp module for irradiating the work table can be designed in such a way that the emitted light is in a vertical plane that goes through the lamp module and through the intended seating or standing area Table goes, has significantly lower light intensities than in an area lying to the right or left of said level.
  • a wedge-shaped area in the range of +/- 5 ° or +/- 10 ° or +/- 20 ° around the said vertical plane can be masked out and / or only have a fraction of the maximum light intensity that can be achieved in one of the said plane more inclined area is present.
  • Such a masking out or light intensity reduction in the central area under the respective lamp module prevents light hitting the work table or objects on it from being reflected in the direction of the face of the user who is seated or standing at the table as intended.
  • the light emitting areas inclined laterally to the left and / or right do not harbor this reflective glare problem, as the light emitted obliquely to the left or right is also reflected by the table, but is reflected laterally past the user on the left or right.
  • the respective lamp module for irradiating the work table can have an optical element in the form of a reflector and / or a lens which emits the light captured by the light source or sources of the lamp module in a batwing-like distribution.
  • a batwing distribution has two bright, approximately club-shaped emission areas or light cones inclined towards one another, between which there is a very faint or even completely shielded intermediate area.
  • the aforementioned bright cones or lobes or pyramids can each have a main direction of radiation that extends from above at an acute angle to the work table, for example at an angle of inclination to the vertical of +/- 5 ° to +/- 45 ° and / or + / - 10 ° to +/- 30 °.
  • the aforementioned bright radiation spaces can have a widening angle of approximately 10 ° to 45 ° or 15 ° to 25 °.
  • Such a batwing distribution can be generated, for example, by double-shell-shaped or double-pear-shaped reflectors, in front of whose central rib or central elevation the light source can be positioned.
  • other designs of the optical element are also possible.
  • batwing distributions can also be generated by means of a suitably contoured lens.
  • the light source can irradiate a half-space facing the reflector and / or the lens can have a cup-shaped entry surface in which or at the edge of which the light source can be arranged.
  • an intelligent control device can individually adapt the lighting scenario at the workstation brought about by the lighting assembly to the respective user and / or the ambient conditions, with such a control device advantageously being semi-automatic or work fully automatically and can adjust at least one or more operating parameters of the light assembly as a function of one or more detected or specific user needs and / or environmental conditions.
  • Said control device can preferably individually control the at least one lamp module for irradiating the visible body and the at least one lamp module for irradiating the work table in order to make the best possible use of the advantages of the decoupling between non-visual and visual properties.
  • a detection device for detecting the user behavior and / or state can be provided in a further development of the invention, so that the control device is dependent on the detected user behavior and / or state. state the lighting scenario can be set variably.
  • a detection device can include, for example, a camera and / or one or more imaging sensors and / or a motion sensor in order to detect relevant characteristics of the user behavior and / or the user state by means of sensors.
  • the detection device can use a suitable sensor system to determine a user activity of the user located at the work table, for example on the basis of a movement pattern and / or a movement frequency and / or a movement amplitude of one or more limbs.
  • a suitable sensor system for example, the frequency and / or amplitude of nodding movements or other movements of the user's head and / or movements of the user's forearms and / or the user's upper body can be recorded using a camera or other sensor system, with an evaluation device determining from the recorded movement variables can determine whether the user is actively moving around the desk or sitting or standing rather inactive at the desk.
  • the size and / or opening width of a user's eyes and / or the frequency of the opening of the eyelids can also be determined by means of an imaging sensor system can be recorded in order to infer a more tired or more active user.
  • the acquisition device can in particular also acquire or determine a viewing angle or a viewing direction of the user, for example by means of a camera observing the face of a user.
  • the detection device can for example be designed to detect the respective time portion of different viewing directions, for example in such a way that the detection device determines which areas of the work table and / or which areas of the viewing body are viewed by the user's eyes for how long.
  • the control device can variably set the light module for irradiating the visible body and / or the light module for irradiating the table. If, for example, an active, relatively strongly moving user is detected, the irradiation of the viewing body can be dimmed down and / or the lighting module for irradiating the work table can be set to illuminate the work table uniformly and / or substantially completely.
  • the irradiation of the viewing body can be increased and / or the spectrum can be increased to a strong cyan component in order to increase the melanopic effect, and / or the light module for irradiating the work table can be controlled in this way that the workbench section immediately in front of the user is brightened more strongly.
  • control device can control the lamp modules in such a way that the section of the work table in which or in front of which the user is located or moving is illuminated more brightly than another section of the work table that the user is obviously aware of does not use due to the recorded position and / or the recorded range of motion.
  • Said control device can automatically adjust the respective change in the operating parameter of the at least one lamp module for irradiating the viewing body and / or of the at least one lamp module for irradiating the work table as a function of the behavior characteristics detected by the detection device.
  • a semi-automatic control system can also be provided which, for example, offers the user certain options and then sets the lighting scenario accordingly after selecting an option.
  • the activity options "very tired - tired - normally awake - wide awake" can be offered on a display device such as a touchscreen, whereupon the user can select, for example, very tired, whereupon the control device then sets the lighting scenario in the manner described for a very tired, inactive person User can adjust.
  • Such a semi-automatic control can advantageously also be designed to work adaptively, for example in such a way that the described detection device detects a user behavior and / or state and the selection options are adapted as a function of the detection. If, for example, an active user is detected by sensors, he can only be offered the selection options normally awake or wide awake, for example.
  • Said control device can advantageously be made electronically and in particular comprise a microprocessor and a program memory in order to initiate predetermined evaluation processes and / or control commands by means of software stored in the program memory on the basis of transmitted sensor signals of the detection device, which then lead to a corresponding setting of the lamp modules.
  • the control device can advantageously have a memory device or can be connected to such a memory device in which various data such as sensor data, light setting data or personalization data can be stored. Independently of such a storage device, the control device can also be designed to be connected to a cloud in order to exchange data and / or control commands with such a cloud.
  • the control device can advantageously also have an interface in order to be able to be controlled via an app from another device such as a smartphone or a tablet.
  • a software module can also be imported into the control device via such an interface, for example in order to be able to adapt or update control functions.
  • remote maintenance and / or an analysis of locally stored data to improve set lighting scenarios can be carried out via such an interface.
  • control device can also variably set the lighting scenario as a function of other usage parameters and / or conditions of use.
  • a detection device can be provided for detecting objects on the work table, for example comprising one or more cameras and / or imaging sensors and / or other suitable sensors, such as a book and / or a coffee cup and / or a computer keyboard on the work table can.
  • object detection can include, for example, contour detection and / or pixel evaluation in a camera image.
  • the control device can advantageously control the lamp modules in an intelligent manner in a variable manner as a function of an object detected in each case on the work table.
  • the light modules for zone-wise irradiation of the work table can be controlled in such a way that a work table area in which a book has been recorded is illuminated more brightly than the rest of the work table areas.
  • the at least one lamp module for irradiating the visible body can also be controlled variably depending on a detected object on the table, for example in order to reduce the shadow cast by increasing the diffuse portion of light that is emitted by the visible body above the work table, which can be caused by an object lying on the work table. If, for example, it is detected with the aid of the above-mentioned detection device that a ruler is being used to draw on the work table, the reflective visual body, in particular a diffusely reflecting section thereof, can be more strongly irradiated by the lamp module for irradiating the upright visual body in order to increase the diffuse light component on the To get the work table, which then reduces the shadow formation.
  • Said detection device for detecting objects on the work table can in particular be designed to detect a position of the object on the work table and / or a size of the object and / or a thickness of the object.
  • the thickness in particular can be relevant when it comes to the question of how shadows are cast.
  • Said detection device can comprise, for example, a camera or an imaging sensor.
  • sensors can also be provided on the work table, which can for example detect contact between an object and the table surface and / or determine the weight or the pressure of an object on the table top.
  • Such contact and / or weight sensors and / or sensors working in other ways on the work table can also be used to detect the position and / or the movement pattern of the user on the work table, in which case the sensors mentioned can in particular be designed to do so to detect the position of the hands and / or forearms when they are resting on or touching the work table.
  • control device can also be designed to variably control the lamp modules as a function of the presence of a user. This can be used in particular to operate the lighting device in an energy-efficient manner. If the detection device determines, for example, that there is no user at the work table, the light assembly can be dimmed down or switched off completely. Conversely, if a user is detected at the work table, the light modules can be raised in terms of their light intensity.
  • control device can set or select different default settings for the lighting scenario for different users.
  • a detection device can be provided for identifying the respective user, wherein such an identification device can include, for example, a camera and face recognition.
  • an identification code that identifies the respective user can also be read out, for example from an RFID tag that the user can carry as a personal card.
  • the control device can also include an input device by means of which a respective user can enter his name or another identification code in order to then automatically set the desired, individual lighting scenario as a function of the entered or read-in identification code.
  • control device can also take into account other conditions of use for the individual setting of the lamp modules.
  • control device can take into account the time of day and / or the season in order, for example, to set greater brightnesses in the morning and evening than around noon and / or to increase the non-visual light effects in winter, for example by more powerful irradiation of the upright light body and / or Increase in the proportion of cyan light in order to increase the melanopically effective amount of light absorbed by the eye.
  • control device can also take into account local light intensities or brightnesses.
  • a light sensor can detect the brightness at the workplace in order to then detect it as a function of the sensor Light at the workplace to control the lighting modules individually by the control device.
  • the control device can dim the light modules as a function of the detected brightness, in particular increase or decrease them, in order to achieve sufficient brightness at the work table.
  • control device can also control the lamp modules in such a way that the light color and / or the spectrum of the light emitted by the lamp assembly is changed as a function of the ambient light detected by sensors. If, for example, it is detected by sensors that there is a very warm ambient light due to morning or evening red, the control device can, for example, control the lamp modules in such a way that they also emit a warmer light in order to adapt to the ambient light color.
  • control device can also control the lamp modules in such a way that the lighting is adapted as a function of sensor-recorded environmental parameters that do not relate to the lighting situation, such as ambient temperature, CO 2 content of the air or noise level. If, for example, a high level of noise is detected by sensors, the user can be focused by increasing the illuminance in the area of a visual task.
  • control device can also control the light assembly as a function of at least one operating parameter of a monitor used on the work table.
  • a detection device for detecting the screen brightness can be provided in order to individually control the at least one light module for irradiating the work table and / or the at least one light module for irradiating the light body as a function of the detected screen brightness. For example, when a higher brightness of the screen display is detected, a light module that irradiates a table section located in front of the screen can be dimmed up in order to also illuminate objects located in front of the screen, such as a keyboard. Conversely, if no or only a very low screen brightness is detected, the work table section surrounding the screen can be irradiated less.
  • the at least one lamp module for irradiating the viewing body can also be controlled in a variable manner.
  • the light color or color temperature of the light which irradiates the viewing body can be adapted to the color of the screen display in the edge areas of the monitor in order to achieve ambient lighting that gives the feeling of a continuing or enlarged screen. If, for example, a purple-colored or predominantly purple-colored screen display is displayed on the screen, in particular at its edges, the visual body panel located behind the screen can also be irradiated with purple or purple-tinged light.
  • control device can also influence the control of a monitor located on the work table or its screen display in the opposite direction.
  • control device can be designed to adapt the screen display of the monitor to the irradiation of the viewing body and / or the irradiation of the work table.
  • the control device can adapt the monitor display depending on the spectrum and / or the light intensity of the light irradiating the viewing body, for example to this effect that the color of the screen display is increased and / or shifted towards the cyan light spectrum and / or the brightness of the screen is increased when the viewing body and / or the work table are irradiated relatively brightly.
  • the lighting device 1 comprises a panel-like, reflective viewing body 2, which can be attached upright on a rear side of a work table 3.
  • the rear side referred to here means the side of the table which is opposite the intended seating or standing area 4 of a user 5 working at the work table 3. This can usually be a long side.
  • the lighting device 1 furthermore comprises a preferably elongated light assembly 6 for irradiating said panel-like viewing body 2 and for irradiating the work table 3.
  • said visible body 2 can form an at least approximately flat panel that extends essentially along an entire Long side of the work table 3 can extend and can extend upwards in the height direction from the table edge of the work table 3 from about 50 cm to 150 cm.
  • other contours of the visible body 2 are also possible, as explained at the beginning.
  • Said visible body 2 can have a smooth, light, and preferably slightly roughened, reflective surface, for example, it can be made matt white.
  • at least a section of the visible body 2 or its surface can also be contoured in a facet-like and / or scale-like and / or Fresnel-like manner in order to be able to radiate light in a directed manner towards the user 5, as already explained at the beginning.
  • right and left edge strips of the visible body 2 can be structured in the manner mentioned facet-like, while a central partial surface can be diffusely reflective, for example matt white.
  • the elongated lamp assembly 6 can extend along an upper edge portion of the viewing body 2 essentially parallel to the longitudinal axis of the work table 3 and at a slight distance from the viewing body 2.
  • a gallows-shaped lamp carrier 7 protruding from the upper edge section of the display body 2 can be provided so that the lamp assembly 6 can extend approximately parallel to the display body 2 at a slight distance therefrom and / or horizontally along the upper edge portion of the display body 2.
  • the lighting assembly 6 is advantageously arranged above a rear table half, that is to say facing away from the user 5, in particular approximately at the level of an upper edge of the viewing body 2.
  • the light assembly 6 has at least one light module 8 that irradiates the viewing body 2, and at least one light module 9 that irradiates the work table 3.
  • the lamp module 8 irradiating the visible body 2 can be designed in the manner of a wall washer in order to irradiate the visible body 2 uniformly over its height or with an approximately constant illuminance.
  • Said lamp module 8 can have a radiation area 8a which is limited to the viewing body 2 and advantageously extends over its entire height, at least approximately over the entire height.
  • Said lamp module 8 can irradiate the panel-like visible body 2 with an acute angle grinding, in particular with an acute angle grinding from above. Independently of this, the lamp module 8 can have a main radiation direction which is inclined at an acute angle to the vertical and / or directed at an acute angle to the viewing body 2.
  • the light assembly 6 can comprise a plurality, for example 5 to 10 or even more than 10, of such light modules 8, which can be arranged next to one another along the longitudinal axis of the light assembly 6, so that the light assembly 6 as a whole is linearly contoured, but a large number comprises luminaire modules 8 arranged next to one another, the radiation spaces 8a of which are all directed towards the visible body 2 and can overlap and / or complement one another in order to jointly irradiate the entire visible body 8.
  • the lamp modules 8 can each comprise a shell-shaped reflector 8b, the concave surface of which is active in terms of lighting technology faces the visible body 2.
  • a surface or plane defined by the edge of the reflector 8b can be oriented approximately parallel to the viewing body 2.
  • Said reflector 8b preferably captures all of the light emitted by a light source of the lamp module 8.
  • the light source 8c can comprise one or more LEDs that shine in a half-space, in particular in the concave reflector surface. The light source 8c can therefore radiate away from the viewing body 2, so that the reflector 8b deflects the light onto the viewing body 2.
  • the lamp modules 8 can also include a lens 8d, which directs the light in the desired manner onto the viewing body 2, cf. Figure 8 .
  • the lamp assembly 6 further comprises lamp modules 9, which can also be arranged in a row along the longitudinal direction of the lamp assembly 6, in particular parallel to the row of lamp modules 8 in the immediate vicinity.
  • the light modules 8 for irradiating the visible body 2 and the light modules 9 for irradiating the work table 3 can be arranged in a matrix-like arrangement in a common light housing 10 and / or combined to form a common light assembly which can have a uniform appearance.
  • the lamp modules 9 for irradiating the work table 3 advantageously have a main direction of radiation that can be inclined vertically downward on the work table 3 and / or at a slight acute angle to the vertical, the lamp modules 9 advantageously being able to radiate in the form of a batwing distribution, as will be explained below will.
  • the radiation area 9a of the lamp modules 9 can be limited to the work table 3, wherein the radiation area of a lamp module 9 can advantageously extend essentially over the entire depth of the work table 3.
  • the radiation areas 9a of the lined up lighting modules 9 can overlap one another and / or complement one another without overlapping in order to be able to jointly irradiate essentially the entire work table 3.
  • each lamp module 9 irradiates only a partial section of the work table 3, so that the work table 3 can be illuminated differently in zones by activating individual lighting modules 9.
  • the lamp modules 9 can be arranged at least approximately in a plane passing through the monitor 11, cf. Figure 5 , or have only a relatively limited offset in relation to this, so that the emitted light falls only very flat on the monitor 11 and cannot cause any reflections or reflections there and also cannot cause large shadows.
  • the lamp modules 9 can also comprise an optical element in the form of a reflector 9b, which can preferably completely capture the light emitted by a light source 9c of the respective lamp module 9 and cast it onto the work table 3.
  • Said reflectors 9b can, for example, be shell-shaped or double-shell-shaped and face the work table 3 with a concave, light-technically active surface.
  • the reflectors 9b and also the reflectors 8b are advantageously arranged and designed in such a way that a user 5 seated or standing at the work table 3 as intended cannot look into the light sources 8c or 9c.
  • said plane 13, which delimits the screened room area 12 on the workstation side is inclined, however, clearly sloping downwards towards the workstation in relation to the horizontal, cf. Figure 5 .
  • the above-mentioned screening of the spatial area 12 can be brought about by the reflectors 8b, in particular the edges of the surfaces that are active in terms of lighting technology and / or by an edge web of the housing 10, cf. Figure 4 .
  • the optical elements of the lamp modules 9, in particular the said reflectors 9b and / or correspondingly contoured lenses, can bring about a batwing-like light distribution of the lamp modules 9.
  • a batwing distribution like her Figure 10 shows can have two relatively narrow radiation spaces, for example radiation cones or pyramids, which each radiate downward at an acute angle to the vertical and are arranged spread out with respect to a vertical plane that goes through the lighting module 9 and the user 5 on the work table 3.
  • the batwing distribution around the named vertical plane, which goes through the lighting module 9 and the user 5 can have a dimmed or dim area 14.
  • a respective luminaire module 9 shines obliquely to the bottom right and / or obliquely to the left, the main radiation directions of the bright radiation areas 15 being inclined, for example, at an angle of +/- 10 ° to +/- 30 ° to the vertical can, cf. Figure 10 .
  • the dimly lit or shielded room area 14 can lie in a spatial area of, for example, +/- 10 ° or +/- 20 ° around the named vertical plane.
  • the batwing distribution can prevent the user 5 from being glared by reflections. It is true that the light radiated onto the work table 3 is reflected by the work table 3 even in the case of a batwing distribution. The reflected radiation, however, passes the user 5 to the left and right and therefore does not dazzle him.
  • the Figure 7a the reflected glare, which usually occurs when a spotlight that emits strong light is also used in the central area. This radiator is placed in a vertical plane at an angle above Arranged by the user, the light reflected from the work table falls into the eyes of the user.
  • Fig. 9 shows the desired batwing distribution according to FIGS Figures 8a and 8b can be achieved through various reflector designs.
  • separate, for example shell-shaped, separate reflectors can be used to achieve the two emission areas of the batwing distribution, but a one-piece, for example double-pear-shaped reflector can also be used to achieve such a batwing distribution.
  • FIG. 9 shows a batwing distribution can also be achieved by means of one or more lenses that are assigned to one or more light sources.
  • the lighting modules 8 and 9 can be controlled independently of one another by an electronic control device 16 in order to adapt the lighting scenario individually to the respective user and / or the ambient conditions, as was explained at the beginning.
  • the control device 16 can receive signals from a detection device 17, which can have different sensors for detecting different user and / or environmental characteristics, for example at least one camera and / or an imaging sensor and / or a motion sensor, which for example on the housing 10 of the lighting device 1 can be attached in order to be able to grasp the work table 3 and / or the user 5.
  • a detection device 17 which can have different sensors for detecting different user and / or environmental characteristics, for example at least one camera and / or an imaging sensor and / or a motion sensor, which for example on the housing 10 of the lighting device 1 can be attached in order to be able to grasp the work table 3 and / or the user 5.
  • the detection device 17 can also have sensors attached directly to the work table 3, for example in the form of contact sensors and / or pressure sensors.
  • light sensors can be provided for detecting brightnesses in different areas on or above the work table 3.
  • control device 16 can have an input device 18, for example in the form of a touchscreen, in order to be able to input a user identification or to be able to select offered selection options, for example.
  • Said control device 16 can work in different operating modes in the manner already explained in the introduction, in order to individually adapt or change the lighting scenario on the work table 3.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP21154197.4A 2020-01-31 2021-01-29 Dispositif d'éclairage Pending EP3896331A1 (fr)

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DE102020102404.5A DE102020102404A1 (de) 2020-01-31 2020-01-31 Beleuchtungsvorrichtung

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054793A (en) * 1973-08-22 1977-10-18 Sylvan R. Shemitz Associates, Inc. Lighting system
WO2004039631A1 (fr) * 2002-10-31 2004-05-13 Gerd Reime Dispositif de commande d'un eclairage destine notamment a l'habitacle de vehicules automobiles et son procede de fonctionnement
DE202012004264U1 (de) 2012-04-27 2013-07-30 Bartenbach Holding Gmbh Lichttherapievorrichtung
EP2679889A2 (fr) * 2012-06-26 2014-01-01 Bartenbach Holding GmbH Dispositif dýéclairage
US20180220506A1 (en) * 2017-01-31 2018-08-02 Laurence P. Sadwick Solid State Luminaire Lighting System
WO2019068665A1 (fr) * 2017-10-05 2019-04-11 Signify Holding B.V. Agencement d'éclairage circadien

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414609A (en) 1982-10-08 1983-11-08 Sylvan R. Shemitz And Associates, Inc. Luminaire for a visual display terminal
WO2006103122A1 (fr) 2005-03-31 2006-10-05 Siemens Aktiengesellschaft Dispositif et procede pour assurer la commande d'un systeme de climatisation
DE102014201036A1 (de) 2014-01-21 2015-07-23 Bayerische Motoren Werke Aktiengesellschaft Bildbasierte Klassifikation des Fahrerzustands und/oder des Fahrerverhaltens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054793A (en) * 1973-08-22 1977-10-18 Sylvan R. Shemitz Associates, Inc. Lighting system
WO2004039631A1 (fr) * 2002-10-31 2004-05-13 Gerd Reime Dispositif de commande d'un eclairage destine notamment a l'habitacle de vehicules automobiles et son procede de fonctionnement
DE202012004264U1 (de) 2012-04-27 2013-07-30 Bartenbach Holding Gmbh Lichttherapievorrichtung
EP2679889A2 (fr) * 2012-06-26 2014-01-01 Bartenbach Holding GmbH Dispositif dýéclairage
US20180220506A1 (en) * 2017-01-31 2018-08-02 Laurence P. Sadwick Solid State Luminaire Lighting System
WO2019068665A1 (fr) * 2017-10-05 2019-04-11 Signify Holding B.V. Agencement d'éclairage circadien

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