EP3369988B1 - Procédé et dispositif d'éclairage permettant d'éclairer des surfaces de paroi - Google Patents

Procédé et dispositif d'éclairage permettant d'éclairer des surfaces de paroi Download PDF

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Publication number
EP3369988B1
EP3369988B1 EP18159871.5A EP18159871A EP3369988B1 EP 3369988 B1 EP3369988 B1 EP 3369988B1 EP 18159871 A EP18159871 A EP 18159871A EP 3369988 B1 EP3369988 B1 EP 3369988B1
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EP
European Patent Office
Prior art keywords
shell
reflector
light
light source
wall surface
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Application number
EP18159871.5A
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German (de)
English (en)
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EP3369988A1 (fr
Inventor
Christian Anselm
Christian Reisecker
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Bartenbach Holding GmbH
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Bartenbach Holding GmbH
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Publication of EP3369988A1 publication Critical patent/EP3369988A1/fr
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    • 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
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • 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
    • 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
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • 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
    • F21V7/09—Optical design with a combination of different curvatures
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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
    • F21V7/048—Optical design with facets structure
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • 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
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a method and a lighting device for illuminating wall surfaces such as goods or bookshelf walls, with at least one spotlight comprising a light source and a multi-axis curved, scallop-shaped reflector shell for capturing and emitting the light emitted by the associated light source in the form of a beam .
  • Such lighting devices are from US 2017/0023208 A1 and US 2013/201674 A1 known.
  • spotlights can be used that direct the emitted light cone specifically onto the wall and, if necessary, onto the floor, in order to illuminate the corresponding pieces of wall surface.
  • spotlights that are mounted at the upper end of a wall adjacent to this, for example on the ceiling, and illuminate the wall are sometimes referred to as wallwashers.
  • Spotlights that generally radiate downwards onto a floor surface are, however, sometimes referred to as downlights, whereby such spotlights can be integrated into ceiling panels, for example, or freely suspended and combined in matrix-like spotlight arrangements.
  • a single spotlight can also be used, for example to illuminate a shop shelf, a shop display case or an individual object.
  • such spotlight arrangements can be used to illuminate long aisles such as shelves in supermarkets, but also as shop lighting, for example to illuminate showcases or as shelf lighting, kitchen lighting, aisle lighting, stairwell lighting or in conference rooms for blackboard or flipchart lighting.
  • radiator arrangements can also be built into electrical devices such as refrigerators and ovens, for example, in order to illuminate wall and / or floor surfaces of the devices.
  • linear light arrangements For the illumination of long, narrow aisles, linear light arrangements are usually used, which extend along a longitudinal axis parallel to the aisle axis. In such linear lighting arrangements, however, there is usually a lack of brilliance.
  • the products standing on a shelf do not appear individually sparkling, but rather a diffuse, contour-swallowing lighting is created.
  • elongated light sources such as fluorescent tubes are not used, but point light sources such as LEDs are used, it makes sense not to use elongated reflectors like extruded profiles, but rather to use reflector shells that are individually assigned to the light sources, which are multi-axis curved and a larger part of the point light sources of this type Can capture emitted light in order to achieve more efficient illumination.
  • each light source or each group of light sources such as an LED cluster can be assigned a shell-shaped or half-shell-shaped reflector that captures the light and casts it in the form of a beam onto a specific area of the corridor.
  • a respective light source together with the reflector assigned to it, forms a radiator so that the linear Lighting device is formed from one or more rows of such spotlights.
  • the aisle walls formed by the shelf walls are not smooth, bright surfaces that would have to be evenly illuminated at acute angles even with strong abrasive irradiation, but rather through the shelves standing on the shelves and often regrouped goods are unevenly shaped in the form of a constantly changing relief, are of different lightness or, depending on the goods label, are also dark.
  • such shelf walls also have a certain depth, so that the lighting device should, if possible, also shine at least a little way into the shelves in order to also brighten up goods that are perhaps lower down on the shelf.
  • a linearly extending lighting device with an elongated housing is, for example, from the document DE 10 2005 007 347 A1 or the DE 20 2014 103 431 U1 known, this known lighting device having a plurality of rotatably mounted lighting units around the beam angle adapt and thus better meet different local conditions.
  • the present invention is 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 aim is to achieve illumination that is as uniform as possible over the length of the corridor and that extends transversely to the longitudinal direction and that is as glare-free as possible.
  • the lighting device should advantageously be easily adaptable to different configurations of the walls to be illuminated, for example by regrouping the presented goods.
  • the radiator emit unreflected direct light as well as reflected indirect light and direct the different light components of the beam emitted by a radiator into different areas in order to have different light components in different spatial areas.
  • the direct light which is radiated unreflected past the reflector shell by a radiator, and the indirect light reflected by the reflector shell are radiated into different areas.
  • the reflector shells are each designed to irradiate a wall surface facing the respective reflector shell only with reflected indirect light, while an unreflected direct light portion of the beam is limited to an opposing wall surface from which the reflector shell faces away and / or to the floor.
  • the reflected indirect light can in particular be used for shelf walls and the goods or books presented there evenly and softly without any glare, Nevertheless, they illuminate brilliantly, while a floor area or a wall area facing away can be brightly illuminated with the unreflected direct light, so that a customer or visitor walking there experiences an overall brightly illuminated corridor.
  • the beam is widened in the longitudinal direction parallel to the wall surface to be illuminated in order to allow a gentle overlay of the illuminated surface pieces, but at the same time limited in such a way that glare is prevented in the longitudinal direction.
  • the beam emitted by the radiator illuminates an area of at least 2 x 20 °, said beam being limited to 2 x 60 ° or less in said plane.
  • the bundle of rays can irradiate a region from 2 ⁇ 25 ° to a maximum of about 2 ⁇ 50 ° on the plane mentioned.
  • the said main emission direction thus forms the normal vector of the said longitudinal and / or sectional plane.
  • the main emission direction of the light source is directed at the reflector shell, the light source advantageously forming a point light source, for example in the form of an LED or a COB.
  • Point-shaped is not to be understood in the mathematical sense, but rather in the light engineering sense means those light sources whose light rays seem to emanate from a point, unlike linear light sources such as fluorescent tubes.
  • the light sources of the radiators can each be designed as half-space radiators and arranged in such a way that the respective light source radiates into a half-space facing away from the wall surface that is irradiated with indirect light by the reflector shell assigned to the said light source.
  • the light source thus, so to speak, radiates in the "wrong", opposite direction away from the shelf wall or wall surface to be illuminated, so that only the indirect light reflected on the reflector shell is thrown back onto said shelf wall. That past the reflector shell In contrast, emitted, unreflected direct light does not fall on the wall surface mentioned, but only on the aisle floor and / or on an opposite wall surface, for example of an aisle.
  • the light sources can each be arranged on a dimming strip that extends at least approximately upright in the direction of the longitudinal axis and, together with the reflector shell, can delimit a reflector interior, in where the said light source sits.
  • the above-mentioned anti-glare strip thus screens the light source from the wall surface that is intended to be illuminated only with indirect light.
  • the indirect light component of the beam of a spotlight can be significantly larger than the direct light component, for example the indirect light component is more than 75% or more than 90% and the direct light component is less than 25% or less than 10% of the entire bundle of rays of a radiator, whereby the direct light component is, however, greater than 1% or greater than 5%.
  • the reflector shells can advantageously each be designed as an approximately shell-shaped half-shell which partially captures the light emitted by the light source and throws it onto the wall surface to be illuminated.
  • the bundle of rays emitted by the actively reflecting reflector surface of the reflector shell can be thrown completely onto the wall to be illuminated or, alternatively, partially onto the wall to be illuminated and partially onto the floor.
  • the lighting device is subdivided or divided into several individual spotlights, which each illuminate only a portion of such an elongated corridor
  • the reflector shells each to are designed to illuminate an approximately rectangular area piece on the aisle wall facing the respective reflector shell, the lateral boundaries of which coincide at least approximately with the lateral boundaries of other surface pieces that are illuminated by other emitters.
  • the multiple radiators can be attached to a common, elongated carrier which extends along a longitudinal axis with which the carrier can be aligned at least approximately parallel to the longitudinal direction of the wall surface or the corridor to be illuminated.
  • the bundles of rays emitted by the reflectors can be contoured in the manner of a pyramid with a rectangular plan in order to illuminate rectangular surface pieces on the aisle wall upright edges of the illuminated surface pieces coincide at least approximately or are very close to one another. In particular, there are no unlit areas left on the aisle wall and, conversely, light spots due to uneven cross-fading are also avoided.
  • each area of the wall to be illuminated is irradiated by several radiators, the arrangement being such that each area along the wall to be illuminated is irradiated by the same Number of radiators is irradiated.
  • the reflector shells can be designed in such a way that the surface pieces illuminated by adjacent reflector shells overlap each other approximately in half and those of two reflector shells which are separated from one another by an intermediate reflector shell, Connect the illuminated patches to one another.
  • each area of the wall to be illuminated is irradiated by exactly two spotlights.
  • the reflector shells can be contoured and arranged in such a way that a flat piece is irradiated on the wall surface facing the reflector shells, which in each case extends to the next reflector shell.
  • a reflector shell irradiates a wall area that extends to the right to the right reflector shell neighbor and to the left to the left reflector shell neighbor.
  • the direct light portion that is not reflected past the reflector shells is limited to the floor of the aisle according to the method of the invention, the reflector shells being contoured in such a way that the unreflected direct light portion of the bundle of rays that is bounded by the edges of the reflector shell illuminates an area that has parallel borders to the longitudinal axis of the lighting device and / or extend parallel to the longitudinal axis of the aisle.
  • the reflector shells are contoured and arranged in such a way that the direct light portion delimited by the edges of the reflector shell and / or the anti-glare strip irradiates an area, the edge of which extends along the angled transition between aisle floor and aisle wall. In this way, a light-dark edge can be concealed or hidden, which arises at the edge of the area piece illuminated by the direct light.
  • the lighting device can advantageously be at a height of about 3 m to 4 m or 3.2 m to 3.5 m above the ground, the axial spacing of the radiators from the aisle wall transversely to the longitudinal axis of the Lighting device can also be about 0.75 m to 4 m or 1 m to 3 m.
  • the axial distance of the radiators from the aisle wall transversely to the longitudinal axis in the range from 25% to 200%, e.g. about 50% -100% of the installation height above the ground can correspond.
  • the lighting device can be arranged in such a way that the installation height of the radiators above the floor is approximately 150% to 250%, in particular approximately 200% of the height of the shelf wall to be illuminated.
  • the spacing of the radiators in the longitudinal direction, that is to say parallel to the longitudinal axis of the lighting device can be approximately 150% to 250%, in particular approximately 150% of the aisle width.
  • the carrier with the radiators attached to it can be arranged above the aisle wall surface to be irradiated and at a distance from this aisle wall surface in such a way that a main radiation direction of the radiators directed downwards onto the aisle floor and / or the aisle wall irradiates the aisle wall at an acute angle and the floor surface is at least approximately irradiated from the front.
  • the reflector shells can advantageously be contoured in such a way that the indirect light reflected by the reflector shells is distributed on the aisle wall surface facing the reflector shells with a uniform light intensity distribution essentially over the entire height of the aisle wall.
  • the reflector shells can each be contoured in such a shell-like, half-shell-like manner that a focal point defined by the reflector shell lies at least approximately in the center of the light source.
  • the approximately shell-shaped reflector shells can also be designed to work double-convergent and / or define at least one further focal point, which is in the area of the opening cross-section of the reflector shell or outside the reflector shell can lie.
  • the reflected beam path emanating from the reflector shell can - roughly, roughly speaking - form a double pyramid or a double cone which initially tapers away from the reflector shell in order to widen again after passing the focal point or the constriction.
  • the focal point does not have to be a point in the mathematical sense, but can be the narrowest point of an hourglass-like constriction at which the beam path still has a noticeable diameter.
  • the reflector shell can have a simple shell shape, which consists of an overall uniformly curved shell.
  • the reflector shell can also be designed in the shape of a nutshell and composed of two half-shells, the reflector shell having a constriction in the transition area of the two shell halves mentioned, which is in the reflective inner side of the reflector shell in the form of a longitudinal rib that protrudes inward , can manifest.
  • each of the above-mentioned shell halves can be designed to work in the aforementioned manner in a double-convergent manner, so that the outgoing beam path reflected by one shell half has approximately the shape of a double pyramid or a double cone initially tapers starting from the shell half up to a constriction and then widened again afterwards.
  • the shell halves can each be designed in such a way that the two emitted, reflected radiation cones or pyramids are superimposed on one another and essentially each in the area to be illuminated as intended completely irradiate the same area.
  • the radiators can also radiate through relatively small housing openings, compared to which the radiator optics are significantly larger. In this way, effective protection against glare and an attractive appearance can be achieved.
  • the reflector shells can be contoured in such a way that the bundle of rays emitted by a reflector shell and / or from one shell half of a reflector shell in a vertical plane perpendicular to the longitudinal axis of the lighting device through the light source has a radiation angle of approximately 40 ° to 60 ° or approximately 50 °, said radiation angle range including a vertical to the ground.
  • the reflector shell and / or each shell half can advantageously limit the radiation angle of the radiation beam to a range of 2x 20 ° to 2x 60 ° or 2x 25 ° to 2x50 ° to the vertical in order to To prevent glare in the longitudinal direction.
  • the deflecting optics can be faceted and / or microstructured on their reflective or totally reflective surfaces be.
  • microfacets can be provided, which can be designed in the form of flat flats, concave dents or convex pimples, with a plurality of such facets being provided on a light-technically active surface of the reflector, for example more than 25 or more than 50 or more than 100 such facets Facets in a multi-row and / or multi-column arrangement.
  • other relief-like Microstructures such as geometrically regular relief contours such as truncated pyramids, conical elevations or depressions or similar structures can be provided.
  • the aforementioned faceting and / or microstructuring can be provided on one or all of the reflector surfaces of the reflector.
  • the reflector is designed to be simply reflective, so that the light captured by the deflecting optics is only reflected once before it is radiated onto the surface piece on the wall or on the floor.
  • the lighting device 1 comprises a plurality of spotlights 4, which can be arranged in one or two rows parallel to a longitudinal axis 3 of the lighting device 1.
  • the lighting device 1 viewed as a whole, has an elongated or elongated body which can comprise a carrier 2 which extends along the longitudinal axis 3 and to which the radiators 4 are attached.
  • the lighting device 1 can be mounted and attached as intended in or above a corridor, the lighting device 1 preferably extending with its longitudinal axis 3 parallel to the longitudinal extent of the corridor.
  • the radiators 4 can therefore in particular - at least approximately - be arranged in a common plane parallel to the floor, the rows in which the radiators 4 are arranged extending parallel to the aisle direction.
  • the radiators 4 can be aligned obliquely downwards towards the floor on opposite sides of the aisle or have main radiation directions that are inclined towards different sides, but are basically directed very steeply downwards towards the floor of the aisle, as will be explained in more detail.
  • each emitter 4 comprises a light source 5, for example in the form of an LED, which can be designed, for example, as a COB unit, i.e. a chip on board unit, in which the actual LED element is arranged on a circuit board via which the LED can be supplied.
  • LED clusters for example in the form of a grid-shaped, possibly multicolored LED arrangement, can also be used as light sources.
  • the light sources 5 can each be designed as half-space radiators, which emit their light into a half-space.
  • each radiator 4 comprises a reflector shell 6, which - roughly speaking - can be designed as a shell-shaped half-shell and captures a large part of the light emitted by the assigned light source 5.
  • a respective reflector shell 6 can thereby form a simple, uniformly curved reflector shell.
  • a respective reflector shell 6 can, however, also be designed in the shape of a double or twin shell and thereby have a constriction 6e extending in the longitudinal direction, at which two shell halves 6a and 6b, which together form the reflector shell 6, are connected to one another.
  • Said constriction 6e can in this case form an inwardly projecting, bulge-shaped or ridge-shaped ridge which forms the transition between the two shell halves.
  • the simple shell-shaped reflector shell 6 according to the execution Fig. 3 (a) can advantageously be designed in such a way that the reflected beam path emanating from the reflector shell initially tapers to a constriction and then widens again and thus forms an overall - approximately - double cone or a double pyramid, such a double cone or double pyramid also being at an angle Meaning of a crooked pyramid can be formed.
  • the reflected beam path emanating from the reflector shell initially tapers to a constriction and then widens again and thus forms an overall - approximately - double cone or a double pyramid, such a double cone or double pyramid also being at an angle Meaning of a crooked pyramid can be formed.
  • Each of the shell halves 6a and 6b can be designed in such a way that the reflected beam path emanating from each shell half initially tapers to a constriction in the aforementioned manner and then widens again starting from this and thus a total of two from the reflector shell Double-cone or double-pyramid-shaped beam paths go off, which, however, can advantageously be superimposed on one another, as has already been explained at the beginning.
  • said reflector shell 6 can also have a light-technically inactive or non-reflective section, in particular in shape, beyond the active, reflective, shell-shaped reflector surface have a collar surrounding the active reflector shell, which can be used, for example, for assembly and / or for dimming or limiting the direct light component emitted by the light source.
  • Fig. 5 clarified, several reflector shells 6 of several radiators 4 can be combined to form a reflector shell group, in particular in the form of an integrally one-piece reflector component which, viewed overall, has an elongated contour parallel to the longitudinal axis 3 of the lighting device 1, but the individual reflector shells 6 are multi-axially curved and extend individually transversely to the longitudinal axis 3.
  • each radiator 4 also includes a shielding strip 11, which advantageously can simultaneously form a heat sink and partially closes the respective reflector shell 6.
  • each reflector shell 6 can have a flat shell edge on which the above-mentioned anti-glare strip 11 sits in the form of the heat sink.
  • the aforementioned light source 5 is advantageously seated on the inside on the aforementioned anti-glare strip 11 in the form of the heat sink, so that the light source 5 is arranged in a reflector interior that is delimited on the one hand by the reflector shell 6 and on the other hand by the anti-glare strip 11.
  • the reflector shell 6 extends beyond the anti-glare strip 11, wherein the anti-glare strip 11 can cover or close, for example, only an upper edge section of the reflector shell 6, cf. Fig. 4 (a) .
  • the light source 5 is arranged in such a way that the light source 5 radiates into the reflector shell 6.
  • the main direction of emission 5H of the light source 5 goes away from the anti-glare strip 11, in particular away approximately perpendicularly, and strikes the reflector shell 6 which is inclined to it and which is contoured in such a way that it is viewed in a cross section, cf. Fig. 4 (a) , the emitted from the light source 5 Catches light over a radiation angle of approximately 120 ° to 170 °, in particular approximately 140 ° to 150 °, and re-emits it in a reflected manner.
  • the reflector shell 6 captures about two thirds to four fifths, in particular about three quarters of the emitted light.
  • the direct light component not captured by the reflector shell 6 and thus not reflected can thus assume a radiation angle of about 20 ° to 60 °, in particular about 30 ° to 40 °, this direct light component being directed more or less vertically downwards, but slightly to the side inclined towards from which the reflector shell 6 faces away.
  • the beam 7 emitted by the radiator 4 is viewed in the longitudinal direction at a radiation angle of approximately 2x 40 ° to 2x 60 °, in particular approximately 2x 50 ° symmetrically to the vertical and / or in a longitudinal and / or sectional plane V through the light source 5 limited perpendicular to their main emission direction 5H in order to avoid glare in the longitudinal direction, see also Fig. 7 .
  • the reflector shells 6 face one of the two aisle walls 8 or 9 with their active, reflective surface, so that the reflector shells 6 cast reflected indirect light onto the respective aisle wall 8 or 9.
  • the light source 5 is turned away from this aisle wall, which is irradiated with indirect light from the reflector shell, and is thus arranged the wrong way round, so to speak. If the light source 5 radiates with its main direction of radiation, for example to the right, the associated reflector 6 throws the reflected light to the left onto the aisle wall located there.
  • Fig. 6 the beam 7 emitted by a radiator 4 is shown in more detail.
  • Beam 7 on the one hand an indirect light component 7i, which means the light reflected by the reflector 6, and a direct light component 7d, which means the unreflected light radiated past the reflector shell 6.
  • the radiator 4 and its reflector shell 6 are designed in such a way that the aisle or shelf wall 8 facing the reflector shell 6 is only irradiated by indirect light, while the direct light component is limited to the aisle floor or an opposite aisle wall. In particular, the direct light component can only fall on the floor 10 of the aisle.
  • the aforementioned indirect light component 7i again comprises two sub-components, namely on the one hand the indirect light component 7ir that falls on the aisle wall 8 facing the reflector shell 6 or the shelf positioned there, and the indirect light component 7ib that falls on the floor 10 of the aisle.
  • the reflector shell 6 can advantageously be contoured in such a way that the direct light component 7d radiated onto the aisle floor 10 irradiates a surface area whose boundary runs at least approximately in the angled transition area between aisle floor 10 and aisle wall 9 in order to conceal or hide the resulting light-dark edge make it less visible.
  • the two rows of spotlights 4 illuminate the opposite aisle walls 8 and 9 each with only the indirect light component 7i of the respective bundle of rays 7.

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

Claims (15)

  1. Dispositif d'éclairage pour éclairer des surfaces de paroi telles que des parois de rayonnages pour marchandises ou pour livres, avec au moins un dispositif émetteur (4), qui comprend une source de lumière (5) en forme de point et une coque réflectrice (6) conchoïdale, incurvée de manière multiaxiale pour capter et émettre la lumière émise par la source de lumière (5) sous la forme d'un faisceau de rayons (7), dans lequel la source de lumière (5) possède une direction d'émission principale (5H) dirigée sur la coque réflectrice (6), dans lequel la coque réflectrice (6) est réalisée pour exposer à un rayonnement la surface de paroi (8) tournée vers la coque réflectrice (6) respective seulement à un rayonnement de lumière indirecte réfléchie, et une proportion de lumière directe non réfléchie du faisceau de rayons (7) est limitée à une surface de paroi (9) opposée, de laquelle la coque réflectrice (6) est détournée, et/ou sur le sol de chemin (10),
    dans lequel le faisceau de rayons (7) expose dans un plan de coupe (V), qui traverse la source de lumière (5) de manière perpendiculaire par rapport à la direction d'émission principale (5H), à un rayonnement une zone d'au moins 2 x 20° et est restreint à une zone de 2 x 60° au maximum,
    caractérisé en ce que
    la demi-coque en forme conchoïdal formant la coque réflectrice (6)
    - forme une coque simple globalement incurvée de manière harmonieuse, ou
    - présente un étranglement (6e) et comprend deux moitiés de coque (6a, 6b), qui sont reliées l'une à l'autre dans la zone de l'étranglement (6e) et forment conjointement une demi-coque en forme de coquillage jumelé.
  2. Dispositif d'éclairage selon la revendication précédente, dans lequel la source de lumière (5) du dispositif émetteur (4) est réalisée en tant que dispositif émetteur pour demi-espace et est disposée de telle manière que la source de lumière (5) rayonne dans un demi-espace, qui est délimité par ledit plan de coupe (V) et est détourné de la surface de paroi (8), qui est exposée à un rayonnement de lumière indirecte par la coque réflectrice (6) assigné la source de lumière (5).
  3. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel ledit plan de coupe (V) est exposée à un rayonnement de lumière indirecte réfléchie et/ou coïncide au moins approximativement avec une limite de la proportion de lumière directe non réfléchie.
  4. Dispositif d'éclairage selon la revendication précédente, dans lequel la source de lumière (5) est disposée sur une baguette de protection (11), qui s'étend à la verticale en direction de l'axe longitudinal (3) et délimite conjointement avec la coque réflectrice (6) un espace intérieur réflecteur (12), dans lequel est située la source de lumière (5), dans lequel la baguette de protection (11) délimite ou forme un corps de refroidissement et/ou un support de source de lumière.
  5. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel la demi-coque en forme conchoïdale ou chacune des moitiés de coque de la demi-coque est réalisée de manière à fonctionner avec une double action convergente et/ou est contourée pour qu'un chemin optique réfléchi partant de la demi-coque ou de chaque moitié de coque de la demi-coque se rétrécisse d'abord en un étranglement puis s'élargisse davantage à nouveau en partant l'étranglement à la manière d'un double cône ou d'une double pyramide.
  6. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel une multitude de dispositifs émetteurs (4) sont prévus de manière répartie le long d'un axe longitudinal (3), dans lequel les dispositifs émetteurs (4) comprennent respectivement une source de lumière (5) en forme de point et une coque réflectrice (6) propre en forme conchoïdale incurvée respectivement de manière multiaxiale, pour capter et émettre la lumière émise par la source de lumière (5) sous la forme d'un faisceau de rayons (7), dans lequel les coques réflectrices (6) sont réalisées respectivement pour éclairer une portion de surface (8c) respectivement à peu près rectangulaire sur la face de paroi (8) tournée vers la coque réflectrice (6) respective.
  7. Dispositif d'éclairage selon la revendication précédente, dans lequel les faisceaux de rayons (7) éclairent respectivement dans un plan de coupe (V), qui traverse la source de lumière (5) du dispositif émetteur respectif de manière perpendiculaire par rapport à la direction d'émission principale respective, une zone d'au moins 2 x 20° et sont restreints à 2 x 60° au maximum, dans lequel chaque faisceau de rayons expose seulement à un rayonnement de lumière indirecte réfléchi la surface de paroi tournée vers la coque réflectrice (6) respective et une proportion de lumière directe non réfléchie du faisceau de rayons (7) est limitée sur une surface de paroi (9) opposée, qui est détournée de la coque réflectrice (6), et/ou sur le fond de chemin (10).
  8. Dispositif d'éclairage selon l'une quelconque des deux revendications précédentes, dans lequel les coques réflectrices (6) sont réalisées de telle manière que les portions de surface (8a, 8b ; 8b, 8c ; 8c, 8d) éclairées par des coques réflectrices (6) adjacentes les unes aux autres se chevauchent mutuellement à moitié et les portions de surface éclairées par deux coques réflectrices (6), qui sont séparées l'une de l'autre par une coque réflectrice (6) intercalée, se raccordent les unes aux autres.
  9. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel les coques réflectrices (6) sont contourées respectivement de telle manière que la proportion de lumière directe non réfléchie limitée par les bords de la coque réflectrice (6), du faisceau de rayons (7) est limitée au fond de chemin, et un bord de la portion de surface exposée au rayonnement de la proportion de lumière directe s'étend le long du passage angulaire entre le fond de chemin et la surface de paroi.
  10. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel l'au moins un dispositif émetteur (4) est prévu pour être disposé au-dessus de la surface de paroi à exposer à un rayonnement et à distance par rapport à ladite surface de paroi (8) de telle manière qu'une direction d'émission principale dirigée vers le bas sur le sol (10) et/ou la surface de paroi (8) expose à un rayonnement avec une action d'affûtage selon un angle aigu la surface de paroi (8) et la surface au sol (3) est exposée à un rayonnement au moins approximativement frontal, dans lequel l'au moins une coque réflectrice (6) est réalisée pour répartir sensiblement sur la totalité de la hauteur de la surface de paroi la lumière indirecte réfléchie par la coque réflectrice (6) sur la surface de paroi (8) tournée vers la coque réflectrice (6) avec une répartition d'intensité d'éclairage homogène dans la plage de 1:10 à 1:2 ou 1:6 à 1:4.
  11. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel les coques réflectrices (6) sont réalisées respectivement avec une action réfléchissante simple et la totalité de la lumière émise par une source de lumière (5) et captée par la coque réflectrice (6) associée est réfléchie au maximum une fois.
  12. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel la surface active sur le plan technique lumineux de l'au moins une coque réflectrice (6) est pourvue d'un facettage et/ou d'une microstructuration.
  13. Dispositif d'éclairage selon la revendication 6 ou selon l'une quelconque des revendications s'y rapportant, dans lequel les multiples coques réflectrices (6) sont disposées en au moins une rangée, dans lequel les coques réflectrices disposées en une rangée sont montées de manière à pouvoir basculer sur le support (2) autour d'un axe de pivotement (13, 14) commun, qui s'étend de manière parallèle par rapport à l'axe longitudinal (3), dans lequel les coques réflectrices (6) d'une rangée sont fixées sur une partie de support basculant commune et peuvent être basculées avec celle-ci conjointement.
  14. Dispositif d'éclairage selon la revendication 6 ou l'une quelconque des revendications s'y rapportant, dans lequel les coques réflectrices (6) sont disposées en deux rangées de manière parallèle par rapport à l'axe longitudinal (3), dans lequel les coques réflectrices (6) d'une rangée et les coques réflectrices (6) des autres rangées sont tournées vers des surfaces de paroi (8, 9) opposées, dans lequel chacune des rangées de coques réflectrices (6) est montée sur le support (2) de manière à pouvoir pivoter autour d'un axe de pivotement (13, 14) parallèle par rapport à l'axe longitudinal (3), dans lequel les deux rangées de coques réflectrices (6) peuvent pivoter indépendamment l'une de l'autre.
  15. Procédé pour éclairer une surface de paroi comme une paroi de rayonnages de marchandises ou de livres au moyen d'un dispositif d'éclairage, qui présente au moins un dispositif émetteur (4) avec une source de lumière (5) en forme de point et une coque réflectrice (6) en forme conchoïdale incurvée de manière multiaxiale pour capter et émettre la lumière émise par la source de lumière, dans lequel la source de lumière (5) possède une direction d'émission principale dirigée vers la coque réflectrice (6) et l'au moins un émetteur (4) émet un faisceau de rayons, qui comprend une proportion de lumière directe non réfléchie émise le long de la coque réflectrice ainsi qu'une proportion de lumière indirecte réfléchie simplement, dans lequel le faisceau de rayons expose à un rayonnement dans un plan de coupe, qui traverse la source de lumière de manière perpendiculaire par rapport à la direction d'émission principale, une zone d'au moins 2 fois 20° et est restreint à une zone de 2 fois 60° au maximum, dans lequel la surface de paroi (8) tournée vers la coque réflectrice (6) du dispositif émetteur (4) est exposée seulement à un rayonnement de ladite proportion de lumière indirecte réfléchie simplement et seul un sol de chemin (10) est exposé au rayonnement de la proportion de lumière directe non réfléchie, caractérisé en ce que la proportion de lumière directe non réfléchie, limitée par les bords de la coque réflectrice (6), du faisceau de rayons (7) est limitée de telle manière sur le sol de chemin qu'un bord de la portion de surface exposée au rayonnement de la proportion de lumière directe s'étend le long de la jonction angulaire entre le sol de chemin et la surface de paroi.
EP18159871.5A 2017-03-03 2018-03-05 Procédé et dispositif d'éclairage permettant d'éclairer des surfaces de paroi Active EP3369988B1 (fr)

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DE202017001180 2017-03-03
DE202017103077.6U DE202017103077U1 (de) 2017-03-03 2017-05-22 Beleuchtungsvorrichtung

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