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EP3607247B1 - Lampe - Google Patents

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Publication number
EP3607247B1
EP3607247B1 EP18715603.9A EP18715603A EP3607247B1 EP 3607247 B1 EP3607247 B1 EP 3607247B1 EP 18715603 A EP18715603 A EP 18715603A EP 3607247 B1 EP3607247 B1 EP 3607247B1
Authority
EP
European Patent Office
Prior art keywords
lamp
collimator
light
emitting element
light emitting
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.)
Active
Application number
EP18715603.9A
Other languages
German (de)
English (en)
Other versions
EP3607247A1 (fr
Inventor
Thibaut Escourrou
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP3607247A1 publication Critical patent/EP3607247A1/fr
Application granted granted Critical
Publication of EP3607247B1 publication Critical patent/EP3607247B1/fr
Active 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/005—Refractors for light sources using microoptical elements for redirecting or diffusing light using microprisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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 invention relates to a lamp, in particular a workplace lamp.
  • Luminaires for lighting workplaces or offices are known from the prior art. An important requirement of these lights is that the glare is as low as possible for a defined observer position.
  • the "Unified Glare Rating" (UGR) method was developed to assess glare.
  • the UGR value is a dimensionless number that says something about the degree of psychological glare of a luminaire in the interior. The lower the UGR value, the lower the glare.
  • UGR reference values ie in particular UGR values that should not be exceeded if possible, are specified in standards such as DIN EN 12464-1 for various applications. For example, the UGR value for reading or writing applications, classrooms, computer work, etc. should not exceed 19 if possible.
  • UGR maximum values for stairs and corridors are indicated with the values 25 and 28, respectively.
  • the goal is therefore to keep the UGR value of a lamp, ie in particular a workplace lamp, as low as possible in order to minimize glare. At the same time, however, it should be ensured that the workplace is adequately lit.
  • Prior art of the generic type is known from US Pat US 2005/207166 A1 .
  • the invention is therefore based on the object of creating a luminaire which can provide an optimized UGR value, in particular with minimized manufacturing and assembly costs.
  • a luminaire has: a light source, a collimator for the essentially directed light output of the light output by the light source, a diffuser element for the essentially diffuse light output of the light output by the collimator Optical element for the defined light output of the light output by the diffuser element, and a clear light output element which extends between the diffuser element and the optical element in order to delimit a space with them, in particular in a side view of the lamp, the light output element being at least partially between the diffuser element and the optical element extends.
  • a “directed light emission” is preferably understood to mean a kind of bundling of light in order to direct the light beams in defined direction (s).
  • the bundling is preferably such that all the light beams are aligned closer to one another and furthermore preferably essentially parallel to one another.
  • a “clear light-emitting element” is understood to mean a light-emitting element through which one can look. This means that the light-emitting element is preferably glass-like, transparent and preferably also colorless.
  • a “defined light output” is understood to mean a defined deflection, bundling or expansion of light.
  • the bundling of the light can, for example, result in a symmetrical or asymmetrical light emission.
  • the “(limited) space” is preferably understood to mean a (hollow) space that is at least partially laterally surrounding at least through the designated elements at least in a side view of the same or of the luminaire.
  • the luminaire according to the invention and in particular with a sandwich-like structure offers a simple means of minimizing, in particular, glare while at the same time having a small overall volume, ie in particular with regard to the dimensions and the width of the luminaire.
  • a UGR value of less than 19 at at least 1300lm / m can be achieved, with the light distribution of the luminaire being easily changed by replacing the optical element.
  • the light rays which are strongly bundled by the collimator, strike the diffuser almost parallel, the diffuser in turn scattering and expanding these light rays somewhat.
  • the expansion is in particular such that the light emitted by the diffuser both is emitted by the light emitting element and also bundled by the optical element.
  • the illuminant, the collimator, the diffuser element and / or the optical element are preferably elongated, and in which the aforementioned space is provided as seen in the longitudinal direction of the lamp, a particularly small structural volume of the lamp can be achieved at the same time low glare, ie optimized UGR value, can be achieved.
  • the aforementioned arrangement ie in particular due to the mixing chamber effect of the room according to the invention, results in a particularly advantageous depth effect, ie a 3D effect, of the light when the light is viewed from outside.
  • the interaction of the aforementioned optics achieves a particularly advantageous (optical) efficiency of the luminaire, which is greater than 70%.
  • the light-emitting element extends at least partially between the diffuser element and the optical element. This means, in particular, that every time the lamp is viewed from the outside into the room and between the optical element and the diffuser element, one looks through the light-emitting element. As a result, the overall volume of the luminaire can be reduced even further.
  • the light-emitting element can have at least two, preferably opposite, side walls in order to delimit the space with the diffuser element and the optical element.
  • the light expanded somewhat by the diffuser is therefore preferably emitted through the side walls of the light emitting element.
  • the optical element together with the light-emitting element preferably with its side walls, can be essentially U-shaped when viewed in a cross-section of the luminaire, the optical element preferably being essentially perpendicular to the light-emitting element, particularly preferred perpendicular to its side walls is provided.
  • the light-emitting element is formed from a transparent material, preferably from PMMA. Such materials are particularly suitable for the clear design of the light-emitting element and the depth effect of the luminaire that this brings about.
  • the diffuser element is preferably visible through the light-emitting element.
  • the luminaire can in its Dimensions, in particular with regard to their width, can be further optimized or reduced.
  • the luminaire can also have a luminaire cover for emitting the light emitted by the optical element.
  • the light cover serves, among other things, to protect the light, in particular the optical element, the diffuser and the room.
  • the lamp cover is preferably formed integrally with the light-emitting element. That is to say, the light-emitting element is preferably produced together with the lamp cover from the same material in the same production process, preferably in a single production step. This in particular reduces the assembly and production effort of the lamp, in particular the light-emitting element and the lamp cover.
  • the lamp cover together with the light-emitting element, is preferably designed to be essentially U-shaped when viewed in a cross section of the lamp.
  • the U-shape in particular at least partially surrounds the optical element and thus forms a particularly compact arrangement with it.
  • the optical element can be provided essentially parallel and preferably at a distance from the lamp cover.
  • the lamp preferably the light-emitting element, particularly preferably the side walls of the light-emitting element, can have holding elements such as, for example, projections for holding the optical element.
  • the optical element can be formed integrally, preferably as an injection-molded part, with the light-emitting element.
  • the optical element is preferably a prism element, particularly preferably an asymmetrical anti-glare prism element (eg ADP optics) or microprism optics (MPO), each of which can be designed in particular as a plate.
  • the prism element is particularly suitable for the desired, defined light output of the optical element.
  • the emission characteristic can be changed particularly well, that is to say, in particular, it can be changed from a symmetrical to an asymmetrical light output.
  • the micro prism optics is particularly suitable for an advantageous glare control of the luminaire, the asymmetrical glare control prism element being particularly advantageous for asymmetrical light output.
  • the prism element can have a side having the prisms, the side having the prisms facing away from the diffuser element and preferably directed towards the lamp cover. That is to say, the prisms are preferably provided on the underside or on the inner side of the lamp cover.
  • the luminaire can have a housing for receiving the illuminant, the collimator, the diffuser element and the light-emitting element.
  • the housing primarily serves to protect the components of the luminaire that are accommodated, in particular the illuminant, the collimator and the diffuser element.
  • the light-emitting element is preferably connected to the housing via a force-fitting and / or form-fitting connection, preferably via a corresponding connection such as a snap and / or latching connection. This enables, in particular, simple assembly or simple replacement of the light-emitting element.
  • the housing can also have side walls to delimit a space for receiving at least the illuminant, the collimator and the diffuser element, the side walls preferably having holding elements, in particular non-positive and / or positive holding elements such as projections, for holding at least the diffuser element.
  • this enables particularly simple assembly or particularly simple replacement of the illuminant, the collimator and the diffuser element.
  • the housing preferably the side walls of the housing, and the light emitting element, preferably the side walls of the light emitting element, can each have free end regions, the free end regions of the housing being connected to the free end regions of the light emitting element, and preferably the end regions of the light emitting element each between a the end portions of the housing and the diffuser element are arranged.
  • the light-emitting element in particular can, on the one hand, be simply received by the housing and, on the other hand, serve together with the housing to protect the components received by the housing.
  • the collimator can be designed and arranged in relation to the illuminant in such a way that a first part of the light emanating from the illuminant and entering the collimator reaches the side of the collimator directed towards the diffuser, and / or that a second part of the light emanating from the illuminant and light entering the collimator is first totally reflected in the collimator before the second part reaches the side of the collimator directed towards the diffuser.
  • this has the effect that the light beams emitted by the collimator on the one hand leave the collimator almost parallel in the direction of the diffuser and on the other hand are well mixed in order to be able to avoid different color effects with regard to the light emission.
  • the light components emitted by the light emitting element and the optical element can thereby be varied.
  • the collimator preferably a structure formed in the collimator such as a cone, can have side walls for total reflection of the second part of the light.
  • the collimator can also have a recess for the entry of the two parts of the light into the collimator, with the illuminant preferably protruding into the recess.
  • the light rays in particular can be mixed particularly advantageously in order to be able to avoid different color effects with regard to the light output.
  • the collimator has a TIR lens.
  • the lighting means can be arranged on a circuit board which is preferably provided in the housing.
  • the board is also elongated, in particular in one piece or in several pieces.
  • a particularly compact design can thus be achieved together with the elongated circuit board.
  • the lighting means preferably has an LED.
  • the collimator, the diffuser element, the optical element and / or the light-emitting element can each be designed in one piece and / or in several pieces.
  • “In one piece” is to be understood in particular in such a way that the aforementioned elements are each used as a single element for several, preferably all, lighting means are provided.
  • “Multi-piece” is to be understood in particular in such a way that the aforementioned elements are provided separately for each illuminant.
  • FIGS. 1 to 12d show different exemplary embodiments of a lamp 1 according to the present invention.
  • the following description relates to all the exemplary embodiments, the distinguishing features being emphasized accordingly.
  • the same features are therefore also provided with the same reference symbols in the following.
  • the lamp 1 is particularly suitable for workplaces (in offices, etc.).
  • the luminaire 1 is, however, in principle suitable for any application, such as art museums, for example, which place high demands on the lighting, in particular with regard to glare or UGR values.
  • the luminaire 1 is usually mounted on ceilings in order to radiate downwards, i.e. in particular away from the ceiling.
  • the luminaire 1 has one or preferably a plurality of illuminants 2 for emitting light or light rays.
  • the lighting means 2 is preferably provided on a circuit board 2a which supplies the lighting means 2 with electrical power or energy.
  • the light output of the luminous means 2 is preferably carried out in a main light emission direction, which is particularly preferably essentially perpendicular to the mounting position of the luminous means 2, ie, for example, perpendicular to a flat side of the circuit board 2a.
  • a “main direction of light emission” is understood here to mean, in particular, an axis such as, for example, an axis of symmetry of a light cone generated by the lighting means 2.
  • the lighting means 2 has an LED.
  • the lamp 1 also has a collimator 5.
  • the collimator 5 is provided for the essentially directed light emission of the light emitted by the lighting means 2. Viewed in the direction of the light output of the lighting means 2, the collimator 5 is preferably arranged in front of the lighting means 2, in particular directly in front of the same.
  • the collimator 5 has a TIR ("total internal reflection") lens.
  • so-called narrow beam (NB) lenses can be used as the collimator 5.
  • the luminaire 1 also has a diffuser element 9 for the essentially diffuse light output of the light output by the collimator 5.
  • the diffuser element 9, viewed from the lighting means 2, is preferably provided behind the collimator 5 and particularly preferably at a distance from the collimator 5.
  • the collimator 5 bundles or directs the light emitted by the lighting means 2 and preferably emits it via an in particular flat side 8 directed towards the diffuser element 9 in the direction of the diffuser element 9 for the diffuser element 9.
  • the light bundled by the collimator 5 is preferably refracted.
  • essentially all of the light directed through the collimator 5 strikes the Diffuser element 9, preferably on a side of the diffuser element 9 that is directed towards the collimator 5 and in particular has a flat design.
  • the diffuse, i.e. in particular non-directional, light emission of the diffuser element 9 can be brought about by the design of the diffuser element 9 in that the diffuser element 9 has, for example, scattering structures (scattering particles, etc.).
  • the diffuser element 9 can for example be extruded, i.e. in particular made of an extruded material. Due to the diffuse light emission of the diffuser element 9, the light is therefore preferably expanded for a larger solid angle range.
  • the light emitted by the diffuser element 9 is preferably emitted in a substantially uniformly distributed manner over the entire surface of the diffuser element 9. This can be brought about in particular by the design and arrangement of the collimator 5.
  • the diffuser element 9 preferably has a thickness of 3 mm.
  • the optical element 13 is preferably provided behind the diffuser element 9 and at a distance from the diffuser element 9, as seen from the lighting means 2.
  • the diffuser element 9 can have a preferably flat side through which the light leaves the diffuser element 9, which is directed towards the optical element 13.
  • the majority of the light emitted by the diffuser element 9 preferably reaches the optical element 13.
  • the amount of light reaching the optical element 13 is particularly preferably smaller than the amount of light reaching the diffuser element 9.
  • the optical element 13 is a prism element, in particular a prism plate.
  • the prism element preferably has sides which have prisms and which face away from the diffuser element 9.
  • the prisms are preferably provided in the form of a grid, in particular in the form of a multi-line and multi-column grid (for example at least a 10 ⁇ 10 grid) on that side. It can also be provided that, instead of the prisms, other three-dimensional structures which are suitable for a defined light output are used.
  • the optical element 13 is an asymmetrical anti-glare prism element (for example an ADP optic).
  • FIGs 11a to 12d is the difference between using a micro prism optic (MPO) than an optical one Element 13 ( Figures 11a to 11d ) and an asymmetrical anti-glare prism element (ADP) as optical element 13 ( Figures 12a to 12d ) shown.
  • MPO micro prism optic
  • ADP asymmetrical anti-glare prism element
  • the luminaire 1 also has a clear light-emitting element 10, which extends between diffuser element 9 and optical element 13 in order to delimit a space R with them.
  • the light-emitting element 10 extends at least partially between the diffuser element 9 and the optical element 13. That is, as seen from the illuminant 2, the clear light-emitting element 10 is arranged behind the diffuser element 9 and at least partially in front of the optical element 13.
  • the light-emitting element 10 preferably has at least two preferably opposite side walls 11, 12.
  • the side walls 11, 12 then, together with the diffuser element 9 and the optical element 13, delimit the space R.
  • the light-emitting element 10, in particular its side walls 11, 12, together with the optical element 13, viewed in a cross section of the lamp 2 can be essentially U-shaped or also V-shaped.
  • the optical element 13 can be arranged essentially perpendicular to the side walls 11, 12 of the light-emitting element 10.
  • the space R is preferably designed essentially as a cuboid.
  • the space R can also have a different three-dimensional shape, such as, for example, a shape which is trapezoidal in cross section.
  • the light-emitting element 10 has a clear design, in particular in such a way that it is possible to look through the light-emitting element 10.
  • the light-emitting element 10 is therefore made transparent and preferably colorless.
  • the diffuser element 9 is seen from the outside, ie, for example, when viewed in accordance with FIGS Figures 1 , 4th or 9b , visible through the light emitting element 13.
  • any transparent and preferably colorless material such as PMMA, is suitable as the material for the light-emitting element.
  • the parts L1, L2 of the light emitted by the lighting means 2 in particular through the design and arrangement of the collimator 5, the parts of the light emitted by the diffuser element 9 passing through the optical element 13 or through the light emitting element 10 can be varied in order to control the solid angle range and / or the glare of the lamp 1, for example.
  • the collimator 5 can have a structure 6 which is preferably integrally formed in the collimator 5 and which has side walls for total reflection of the second part L1 of the light.
  • This structure can, for example, be a cone, in particular a truncated cone, the outer surface of which forms the side walls.
  • the collimator can have a recess 7, in particular a light entry opening such as a bore, for the entry of the two parts L1, L2 of the light into the collimator 5.
  • the recess 7 is preferably provided centrally in the collimator 5 when viewed in cross section.
  • the recess 7 is preferably formed in such a way that the second part L1 of the light enters the collimator 5 via the lateral surface of the recess 7, the first part L2 of the light entering the collimator 5 via the bottom of the recess 7.
  • the bottom of the recess 7 can have a convex shape and / or a shape protruding into the recess 7 with a point.
  • the lighting means 2 is preferably provided directly under the recess 7.
  • the lighting means 2 can protrude into the recess 7.
  • the lighting means 2 can also be spaced apart from the recess 7.
  • the lamp 1 preferably also has a lamp cover 14.
  • the lamp cover 14 is for example in the Figures 1 to 7 , 8b , 8c and 9a to 10d shown.
  • the luminaire cover 14 is preferably intended to emit the light emitted by the optical element 13, but also offers protection for the luminaire, in particular the optical element 13. If the optical element 13 is preferably provided as a prism element, the side having the prisms is directed towards the lamp cover 14. As in particular from the Figures 9a to 10d As can be seen, the optical element 13 can preferably be seen through the lamp cover 14.
  • the luminaire cover 14 can be designed like the light-emitting element 10, ie the luminaire cover 14 can in particular be designed to be clear.
  • the lamp cover 14 can in particular be formed integrally with the light-emitting element 10. Seen in the cross section of the lamp 1, ie for example in the Figure 2 Viewed into the plane of the drawing, the lamp cover 14 together with the light emitting element 10 preferably has a substantially U or V shape. Furthermore, the lamp cover 14, together with the light-emitting element 10 and the optical element 13, can form a substantially A-shape when viewed in the cross section of the lamp 1. As exemplified in the Figures 11a to 11d and 12a to 12d As shown, the optical element 13 can be provided essentially parallel and preferably at a distance from or in contact with the lamp cover 14.
  • the lamp 1, preferably the light emitting element 10, particularly preferably the side walls 11, 12 of the light emitting element 10, can have holding elements and / or fastening elements for holding the optical element 13.
  • a form-fitting retaining element in the form of projections 11a, 12a formed in the side walls 11, 12 can be provided for this purpose.
  • the projections 11a, 12a together with the lamp cover 14 preferably form a slot into which the optical element 13 can be pushed.
  • the optical element 13 is formed integrally and preferably as an injection-molded part with the light-emitting element 10 and / or the lamp cover 14. In this case, holding and / or fastening elements for the optical element 13 can be omitted.
  • the luminaire 1 preferably has a housing 15 for accommodating the illuminant 2, the collimator 5, the diffuser element 9, which particularly preferably closes the housing 15, and the light-emitting element 10.
  • the housing 15, which can in particular have a box-shaped shape, preferably has side walls 16, 17 to Delimitation of a space, in particular an assembly space, for receiving at least the illuminant 2, the collimator 5 and the diffuser element 9.
  • the side walls 16, 17 preferably extend away from a bottom area 18 in order to form a U-profile of the housing 15, particularly preferably.
  • the side walls 16, 17 can be designed to be reflective.
  • a preferred embodiment for receiving, ie for holding and preferably fastening, the diffuser element 9 is in the Figures 3 to 5 shown, in which provided in the side walls 16, 17 holding elements 16a and 17a hold the diffuser element 9.
  • the holding elements 16a, 17a are preferably recesses into which projections provided on the diffuser element 9, in particular projections provided on the edge region of the diffuser element 9, protrude and are preferably connected in a force-fitting and / or form-fitting manner.
  • the connection between diffuser element 9 and housing 15 can also be provided such that diffuser element 9 snaps into housing 15.
  • the light-emitting element 10 can be connected to the housing 15 preferably via a force-fit and / or form-fitting connection, in particular in such a way that the housing 15 does not cover the light-emitting element 10.
  • a corresponding connection such as a snap and / or latch connection is suitable for this connection.
  • the collimator 5 preferably extends between the side walls 16, 17 of the housing 15 and is held by these preferably by means of fastening means.
  • the fastening means can in particular have non-positive and / or positive fastening means.
  • the collimator 5 can also have arms 5a and 5b extending away from the collimator 5, such as side walls, which are each provided between housing 15 and illuminant 2, preferably between housing 15 and circuit board 2a, and are preferably in contact with them .
  • the housing 10, preferably its side walls 16, 17, and the light-emitting element 10, preferably its side walls 11, 12, can have free end regions 11b, 12b or 16b, 17b.
  • the free end regions 11b, 12b of the light-emitting element 10 can be connected to the free end regions 16b, 17b of the housing 15.
  • the end regions 11b, 12b of the light-emitting element 10 are each arranged between one of the end regions 16b, 17b of the housing 15 and the diffuser element 9.
  • the end regions 11b, 12b of the light-emitting element 10 preferably each encompass one of the end regions 16b, 17b of the housing 15.
  • the free end regions 16b, 17b of the housing 15 are preferably encompassed on the inside, ie in the housing 15.
  • the lamp cover 10 is preferably connected to the housing 15 in such a way that the light-emitting element 10, in particular its side walls 11, 12, is flush with the housing 15, in particular with its side walls 16, 17.
  • the lighting means 2 can be connected to the housing 15 via fastening means.
  • the lighting means 2 and preferably its circuit board 2a can be connected to the housing 15, in particular to the bottom area 18 of the housing 15, for example via a mounting rail 4, which can be configured, for example, U-shaped in cross section.
  • the mounting rail 4 can be formed in such a way that the lighting means 2 and preferably the circuit board 2a can be pushed onto the mounting rail 4.
  • an intermediate element 3 connected to the mounting rail 4 for receiving the lighting means 2 or the circuit board 2a can be provided between the lighting means 2 or board 2a and the mounting rail 4.
  • the mounting rail 4 can in turn be connected to the housing 15, in particular to its bottom area 18, via fastening means.
  • the luminaire 1 can in principle have any shape, the width of the luminaire 1, in particular the width of the optical element 13, preferably being 40 mm and the height of the light-emitting element 15 mm.
  • the lamp 1 is particularly preferred, as in FIG Figures 1 , 4th , 9a and 9b shown, elongated. That is to say, the luminaire 1 preferably extends essentially in a longitudinal direction, the length of the luminaire 1, which preferably corresponds to 1 m, being a multiple of the width of the luminaire 1. If the luminaire 1 is elongated, the space R described above is delimited at least in the longitudinal direction of the luminaire 1. That is to say, the space R can be designed to be elongated, and its end regions can each be designed to be open or closed.
  • the diffuser element 9, the optical element 13 and / or the clear light-emitting element 10 can be elongated, preferably the longitudinal axes of the collimator 5, the diffuser element 9, the optical element 13 and / or of the light emitting element 10 are arranged essentially parallel to one another and particularly preferably in the same plane. This results in a particularly compact luminaire 1.
  • One or more illuminants 2 can be provided, with a plurality of illuminants 2 these are preferably arranged in the longitudinal direction, particularly preferably on an elongated plate 2a.
  • FIGs 10a to 10d are each different exemplary configurations of the lamp 1, in particular an elongated lamp 1, shown, wherein in the Figures 10a and 10b a microprismatic optics is used as the optical element 13, and in the Figures 10c and 10d an asymmetrical anti-glare prism element is used as the optical element 13.
  • the inventive arrangement of the collimator 5, the diffuser element 9, the optical element 13 and the light-emitting element 10 also varies the punctiform appearance of several illuminants 2 when viewing the lamp from the outside and through the optical element 13 can be, i.e. in particular disappears ( Figures 10a, 10b and 10d ).
  • the punctiform appearance of the one or more illuminants 2 can disappear.

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

Claims (15)

  1. Luminaire (1), en particulier luminaire pour poste de travail, présentant
    - un moyen luminescent (2),
    - un collimateur (5) pour une émission essentiellement dirigée de la lumière émise par le moyen luminescent (2),
    - un élément diffuseur (9) pour une émission essentiellement diffuse de la lumière émise par le collimateur (5),
    - un élément optique (13) pour une émission définie de la lumière émise par l'élément diffuseur (9), et
    - un élément d'émission de lumière (10) transparent s'étendant entre l'élément diffuseur (9) et l'élément optique (13) afin de délimiter un espace (R) avec ceux-ci,
    l'élément d'émission de lumière (10) s'étendant au moins partiellement entre l'élément diffuseur (9) et l'élément optique (13).
  2. Luminaire (1) selon l'une des revendications précédentes, dans lequel l'élément d'émission de lumière (10) présente au moins deux parois latérales (11, 12) de préférence opposées permettant de délimiter l'espace (R) avec l'élément diffuseur (9) et l'élément optique (13).
  3. Luminaire (1) selon l'une des revendications précédentes, dans lequel l'élément optique (13) est formé, conjointement avec l'élément d'émission de lumière (10), de préférence avec ses parois latérales (11, 12), sensiblement en forme de U selon une vue en coupe transversale du luminaire (1), et dans lequel de préférence l'élément optique (13) est prévu sensiblement perpendiculaire à l'élément d'émission de lumière (10), de manière particulièrement préférée perpendiculaire à ses parois latérales (11, 12).
  4. Luminaire (1) selon l'une des revendications précédentes, dans lequel l'élément d'émission de lumière (10) est constitué de PMMA.
  5. Luminaire (1) selon l'une des revendications précédentes, dans lequel l'élément diffuseur (9) est visible à travers l'élément d'émission de lumière (10).
  6. Luminaire (1) selon l'une des revendications précédentes, présentant en outre un couvercle de luminaire (14) permettant l'émission de la lumière émise par l'élément optique (13),
    le couvercle de luminaire (14) étant de préférence conçu d'un seul tenant avec l'élément d'émission de lumière (10), et/ou le couvercle de luminaire (14) étant de préférence formé, conjointement avec l'élément d'émission de lumière (10), essentiellement en forme de U selon une vue en coupe transversale du luminaire (1), et/ou
    l'élément optique (13) étant de préférence prévu essentiellement parallèle et, de manière particulièrement préférée, espacé du couvercle de luminaire (14).
  7. Luminaire (1) selon l'une des revendications précédentes, dans lequel le luminaire (1), de préférence l'élément d'émission de lumière (10), de manière particulièrement préférée les parois latérales (11, 12) de l'élément d'émission de lumière (10), présentent des éléments de retenue (11a, 12a), par exemple des saillies permettant de retenir l'élément optique (13).
  8. Luminaire (1) selon l'une des revendications précédentes, dans lequel l'élément optique (13) est formé d'un seul tenant, de préférence sous forme de pièce moulée par injection, avec l'élément d'émission de lumière (10).
  9. Luminaire (1) selon l'une des revendications précédentes, dans lequel l'élément optique (13) est un élément prismatique, en particulier une plaque prismatique,
    l'élément prismatique présentant de préférence un côté présentant les prismes et le côté présentant les prismes étant de préférence détourné de l'élément diffuseur (9) et, de manière particulièrement préférée, orienté vers le couvercle de luminaire (14).
  10. Luminaire (1) selon l'une des revendications précédentes, présentant en outre un boîtier (15) destiné à recevoir le moyen luminescent (2), le collimateur (5), l'élément diffuseur (9) et l'élément d'émission de lumière (10),
    l'élément d'émission de lumière (10) étant de préférence monté sur le boîtier (15) à force et/ou par complémentarité de forme, de manière particulièrement préférée grâce à un effet de correspondance, par exemple par le biais d'un enclenchement et/ou d'un encliquetage, et/ou
    le boîtier présentant de préférence en outre des parois latérales (16, 17) permettant de délimiter un espace destiné à recevoir au moins ledit moyen luminescent (2), ledit collimateur (5) et ledit élément diffuseur (9), les parois latérales (16, 17) présentant de manière particulièrement préférée des éléments de retenue (16a, 17a), en particulier des éléments de retenue par force et/ou par complémentarité de forme, par exemple des saillies et/ou des évidements, permettant de retenir au moins ledit élément diffuseur (9), et/ou
    le boîtier (15), de préférence les parois latérales (16, 17) dudit boîtier (15), et l'élément d'émission de lumière (10), de préférence les parois latérales (11, 12) dudit élément d'émission de lumière (10), présentant de préférence respectivement des régions d'extrémité libres (11b, 12b ; 16b, 17b), lesdites régions d'extrémité libres (16b, 17b) du boîtier (15) étant reliées aux régions d'extrémité libres (11b, 12b) de l'élément d'émission de lumière (10) et, de manière particulièrement préférée, lesdites régions d'extrémité libres (11b, 12b) de l'élément d'émission de lumière (10) étant disposées respectivement entre l'une des régions d'extrémité (16b, 17b) du boîtier (15) et l'élément diffuseur (9).
  11. Luminaire (1) selon l'une des revendications précédentes, dans lequel le collimateur (5) est conçu et disposé par rapport au moyen luminescent (2) de telle manière que :
    - une première partie (L2) de la lumière sortant du moyen luminescent (2) et pénétrant dans le collimateur (5) parvienne directement sur le côté (8) du collimateur (5) qui est dirigé vers l'élément diffuseur (9), et/ou que
    - une deuxième partie (L1) de la lumière sortant du moyen luminescent (2) et pénétrant dans le collimateur (5) soit tout d'abord totalement réfléchie dans le collimateur (5) avant que cette deuxième partie ne parvienne sur le côté (8) du collimateur (5) dirigé vers l'élément diffuseur (9),
    de préférence le collimateur (5), de manière particulièrement préférée une structure (6) formée dans ledit collimateur (5), par exemple un cône, présentant des parois latérales permettant la réflexion totale de la deuxième partie (L1) de la lumière, et/ou
    le collimateur (5) présentant de préférence un évidement (7) destiné à l'entrée des deux parties (L1, L2) de la lumière dans le collimateur (5) et, de manière particulièrement préférée, le moyen luminescent (2) faisant saillie dans ledit évidement (7).
  12. Luminaire (1) selon l'une des revendications précédentes, dans lequel le collimateur (5) présente une lentille TIR.
  13. Luminaire (1) selon l'une des revendications précédentes, dans lequel le moyen luminescent (2) est disposé sur une platine (2a) de préférence prévue dans le boîtier (15) et présentant de manière particulièrement préférée une forme oblongue, et/ou
    dans lequel le moyen luminescent (2) présente une LED.
  14. Luminaire (1) selon l'une des revendications précédentes, ledit luminaire (1) étant de forme oblongue, et le collimateur (5), l'élément diffuseur (9), l'élément optique (13) et/ou l'élément d'émission de lumière (14) étant de préférence de forme oblongue, et/ou
    dans lequel l'espace (R) est au moins partiellement délimité dans le sens longitudinal du luminaire (1).
  15. Luminaire (1) selon l'une des revendications précédentes, dans lequel le collimateur (5), l'élément diffuseur (9), l'élément optique (13) et/ou l'élément d'émission de lumière (10) sont chacun formés en une seule pièce et/ou en plusieurs pièces.
EP18715603.9A 2017-04-05 2018-03-28 Lampe Active EP3607247B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202017102009.6U DE202017102009U1 (de) 2017-04-05 2017-04-05 Leuchte
PCT/EP2018/057970 WO2018184951A1 (fr) 2017-04-05 2018-03-28 Lampe

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EP3607247A1 EP3607247A1 (fr) 2020-02-12
EP3607247B1 true EP3607247B1 (fr) 2021-08-11

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EP4177517A1 (fr) * 2021-11-09 2023-05-10 RIDI-LEUCHTEN GmbH Optique pour un luminaire et luminaire doté d'une optique

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DE202019106804U1 (de) * 2019-12-06 2021-03-09 Zumtobel Lighting Gmbh Optisches System zum Beeinflussen der Lichtabgabe einer länglichen Lichtquelle
DE102020111374B4 (de) 2020-04-27 2024-09-19 Trilux Gmbh & Co. Kg Optisches System für eine Leuchte zur vorgegebenen Ausleuchtung einer Arbeitsfläche
US11428398B1 (en) * 2021-06-21 2022-08-30 Troy-CSL Lighting Inc. Adjustable lighting device with further optic

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ATE380971T1 (de) * 1999-07-21 2007-12-15 Teledyne Lighting & Display Beleuchtungsvorrichtung
WO2005073629A1 (fr) * 2004-01-28 2005-08-11 Tir Systems Ltd. Luminaire directement visible
IT1391091B1 (it) * 2008-07-15 2011-11-18 Fraen Corp Srl Dispositivo di illuminazione a fascio luminoso regolabile, in particolare per una torcia elettrica
DE102009034841B4 (de) * 2009-07-27 2020-11-26 Emz-Hanauer Gmbh & Co. Kgaa Lichtabgabeeinrichtung für eine Trommel eines Haushaltsgeräts
WO2012027851A1 (fr) * 2010-09-02 2012-03-08 Optotune Ag Source d'éclairage à divergence variable
GB2492542B (en) * 2011-03-31 2014-03-12 Fusion Optix Inc Optical element and collimating optical assembly
JP2014089941A (ja) * 2012-10-03 2014-05-15 Koito Mfg Co Ltd 車両用灯具
EP2924333A1 (fr) * 2014-03-27 2015-09-30 Belux IP AG Luminaire modulaire

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4177517A1 (fr) * 2021-11-09 2023-05-10 RIDI-LEUCHTEN GmbH Optique pour un luminaire et luminaire doté d'une optique

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DE202017102009U1 (de) 2018-07-09
AT17249U1 (de) 2021-10-15
WO2018184951A1 (fr) 2018-10-11
EP3607247A1 (fr) 2020-02-12

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