EP3607247B1 - Luminaire - Google Patents
Luminaire Download PDFInfo
- 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.)
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- 230000003287 optical effect Effects 0.000 claims description 84
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
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- 239000007924 injection Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 12
- 230000004313 glare Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 210000002023 somite Anatomy 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
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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
- 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
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- 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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Description
Die Erfindung betrifft eine Leuchte, insbesondere eine Arbeitsplatzleuchte. Leuchten zur Beleuchtung von Arbeitsplätzen oder Büros sind aus dem Stand der Technik bekannt. Ein wichtiges Erfordernis dieser Leuchten ist, dass die Blendung für eine definierte Beobachterposition möglichst gering ausfällt. Zur Bewertung der Blendung wurde das Verfahren des "Unified Glare Rating" (UGR) entwickelt. Der UGR-Wert ist dabei eine dimensionslose Kennzahl, die etwas über den Grad der psychologischen Blendung einer Leuchte im Innenraum aussagt. Je niedriger der UGR-Wert ist, desto geringer ist die Blendung. UGR-Referenzwerte, d.h. insbesondere UGR-Werte die möglichst nicht überschritten werden sollten, sind in Normen wie z.B. in der DIN EN 12464-1 für diverse Anwendungen angegeben. So sollte z.B. der UGR-Wert für Lese- bzw. Schreibanwendungen, Unterrichtsräume, Computerarbeit etc. den Wert 19 möglichst nicht überschreiten. UGR-Maximalwerte für Treppen bzw. Flure sind mit den Werten 25 bzw. 28 angegeben. Das Ziel ist es also, den UGR-Wert einer Leuchte, d.h. insbesondere einer Arbeitsplatzleuchte, möglichst gering zu halten, um somit die Blendung zu minimieren. Gleichzeitig soll aber sichergestellt sein, dass der Arbeitsplatz ausreichend beleuchtet ist. Gattungsgemäßer Stand der Technik ist bekannt aus der
Ein weiteres Erfordernis der aus dem Stand der Technik bekannten Leuchten ist, dass diese bezüglich ihres Fertigungs- und Montagaufwands möglichst optimiert sind. Das heißt insbesondere, dass diese Leuchten möglichst klein sowie möglichst kosten- und materialoptimiert ausgeführt sind, um z.B. auch einen einfachen Austausch diverser Komponenten der jeweiligen Leuchte zu ermöglichen.Another requirement of the lights known from the prior art is that they are optimized as far as possible with regard to their manufacturing and assembly effort. This means, in particular, that these luminaires are designed to be as small as possible and as cost-effective and material-optimized as possible, e.g. to enable various components of the respective luminaire to be exchanged easily.
Der Erfindung liegt daher die Aufgabe zu Grunde, eine Leuchte zu schaffen, welche insbesondere bei minimiertem Fertigungs- und Montageaufwand einen optimierten UGR-Wert bereitstellen kann.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.
Die Aufgabe wird erfindungsgemäß für die Leuchte durch die Merkmale des unabhängigen Anspruchs gelöst. Vorteilhafte Weiterbildungen sind Gegenstand der hierauf rückbezogenen Unteransprüche.According to the invention, the object is achieved for the lamp by the features of the independent claim. Advantageous further developments are the subject of the dependent claims which refer back to them.
Eine erfindungsgemäße Leuchte weist auf: ein Leuchtmittel, einen Kollimator zur im Wesentlichen gerichteten Lichtabgabe des von dem Leuchtmittel abgegebenen Lichts, ein Diffusorelement zur im Wesentlichen diffusen Lichtabgabe des von dem Kollimator abgegebenen Lichts, ein optisches Element zur definierten Lichtabgabe des von dem Diffusorelement abgegebenen Lichts, und ein klares Lichtabgabeelement, welches sich zwischen Diffusorelement und optischem Element erstreckt, um mit diesen einen Raum insbesondere in Seitenansicht der Leuchte zu begrenzen, wobei das Lichtabgabeelement sich wenigsten teilweise zwischen Diffusorelement und optischem Element erstreckt.A luminaire according to the invention 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.
Unter einer "gerichteten Lichtabgabe" wird vorzugsweise eine irgendwie geartete Bündelung von Licht verstanden, um die Lichtstrahlen in definierte Richtung(en) zu lenken. Die Bündelung ist dabei bevorzugt derart, dass alle Lichtstrahlen enger aneinander und ferner bevorzugt im Wesentlichen parallel zueinander ausgerichtet sind.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.
Unter einem "klaren Lichtabgabeelement" wird ein Lichtabgabeelement verstanden, durch welches man hindurch schauen kann. Das heißt, das Lichtabgabeelement ist vorzugsweise glasartig, transparent und bevorzugt auch farblos ausgeführt.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.
Unter einer "definierten Lichtabgabe" wird eine definierte Umlenkung, Bündelung oder Aufweitung von Licht verstanden. Die Bündelung des Lichts kann dabei z.B. eine symmetrische oder asymmetrische Lichtabgabe bewirken.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.
Unter dem "(begrenzten) Raum" wird bevorzugt ein wenigstens durch die bezeichneten Elemente wenigstens in einer Seitenansicht derselben bzw. der Leuchte gesehen wenigstens teilweise seitlich umgebender (Hohl-)Raum verstanden.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.
Die erfindungsgemäße und insbesondere sandwichartig aufgebaute Leuchte bietet ein einfaches Mittel insbesondere die Blendung bei gleichzeitig geringem Bauvolumen, d.h. insbesondere bezüglich der Abmessungen wie die Breite der Leuchte, zu minimieren. Insbesondere kann dabei bei einer Betrachtung der Leuchte von unten ein UGR-Wert von weniger als 19 bei mindestens 1300lm/m erreicht werden, wobei die Lichtverteilung der Leuchte durch Austausch des optischen Elements einfach geändert werden kann. Beispielsweise kann auf einfache Art und Weise von einer symmetrischen zu einer asymmetrischen Lichtverteilung oder umgekehrt gewechselt werden, wobei die asymmetrische Lichtverteilung unter anderem für eine Nutzung der Leuchte als "Wallwasher" verwendet werden kann. Insbesondere treffen die durch den Kollimator stark gebündelten Lichtstrahlen nahezu parallel auf den Diffusor, wobei der Diffusor diese Lichtstrahlen wiederum etwas streut und aufweitet. Die Aufweitung ist dabei insbesondere derart, dass das durch den Diffusor abgegebene Licht sowohl durch das Lichtabgabeelement abgegeben als auch durch das optische Element gebündelt wird. Insbesondere bei einer länglichen Leuchte, in der vorzugsweise das Leuchtmittel, der Kollimator, das Diffusorelement und/oder das optische Element länglich ausgebildet sind, und in der der vorgenannte Raum in Längsrichtung der Leuchte gesehen vorgesehen ist, kann ein besonders geringes Bauvolumen der Leuchte bei gleichzeitig geringer Blendung, d.h. optimierten UGR-Wert, erzielt werden. Außerdem ergibt sich durch die vorgenannte Anordnung, d.h. insbesondere durch den Mischkammer-Effekt des erfindungsgemäßen Raums, bei einer Betrachtung der Leuchte von außen eine besonders vorteilhafte Tiefenwirkung, d.h. ein 3D-Effekt, der Leuchte. Zudem erzielt die Zusammenwirkung der vorgenannten Optiken einen besonders vorteilhaften (optischen) Wirkungsgrad der Leuchte, welcher größer als 70% ist.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. In particular, when viewing the luminaire from below, 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. For example, it is possible to switch from a symmetrical to an asymmetrical light distribution or vice versa in a simple manner, with the asymmetrical light distribution being able to be used, among other things, for using the luminaire as a "wallwasher". In particular, 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. In particular in the case of an elongated lamp, in which 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. In addition, 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. In addition, the interaction of the aforementioned optics achieves a particularly advantageous (optical) efficiency of the luminaire, which is greater than 70%.
Das Lichtabgabeelement erstreckt sich erfindungsgemäß wenigsten teilweise zwischen Diffusorelement und optischem Element. Das heißt insbesondere, dass bei jeder Betrachtung der Leuchte von außen in den Raum hinein und zwischen optischen Element und Diffusorelement hindurch durch das Lichtabgabeelement geblickt wird. Hierdurch kann das Bauvolumen der Leuchte noch weiter reduziert werden.According to the invention, 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.
Das Lichtabgabeelement kann zumindest zwei vorzugsweise sich gegenüberliegende Seitenwände aufweisen, um mit dem Diffusorelement und dem optischen Element den Raum begrenzen. Das durch den Diffusor etwas aufgeweitete Licht wird also bevorzugt durch die Seitenwände des Lichtabgabeelements abgegeben.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.
Um die Leuchte räumlich noch weiter zu optimieren, kann das optische Element zusammen mit dem Lichtabgabeelement, vorzugsweise mit dessen Seitenwänden, in einem Querschnitt der Leuchte gesehen im Wesentlichen U-förmig ausgebildet sein, wobei vorzugsweise das optische Element im Wesentlichen senkrecht zum Lichtabgabeelement, besonders bevorzugt senkrecht zu dessen Seitenwänden, vorgesehen ist.In order to optimize the luminaire spatially even further, 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.
Das Lichtabgabeelement ist aus einem durchsichtigen Material, bevorzugt aus PMMA, gebildet. Derartige Materialien eignen sich besonders gut für die klare Ausbildung des Lichtabgabeelements und die dadurch bewirkte Tiefenwirkung der Leuchte.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.
Vorzugsweise ist durch das Lichtabgabeelement hindurch das Diffusorelement sichtbar. Insbesondere wenn von unterhalb des optischen Elements und durch das Lichtabgabeelement nur das Diffusorelement zu sehen ist, kann die Leuchte in ihren Abmessungen, insbesondere hinsichtlich ihrer Breite, noch weiter optimiert bzw. reduziert werden.The diffuser element is preferably visible through the light-emitting element. In particular if only the diffuser element can be seen from below the optical element and through the light-emitting element, the luminaire can in its Dimensions, in particular with regard to their width, can be further optimized or reduced.
Die Leuchte kann ferner eine Leuchtenabdeckung zur Lichtabgabe des von dem optischen Element abgegebenen Lichts aufweisen. Die Leuchtenabdeckung dient dabei unter anderem zum Schutz der Leuchte, insbesondere des optischen Elements, des Diffusors und des Raums.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.
Die Leuchtenabdeckung ist dabei vorzugsweise integral mit dem Lichtabgabeelement ausgebildet. Das heißt, vorzugsweise ist das Lichtabgabeelement zusammen mit der Leuchtenabdeckung aus demselben Material in demselben Fertigungsverfahren, vorzugsweise in einem einzigen Fertigungsschritt, hergestellt. Dadurch verringert sich insbesondere der Montage- und Fertigungsaufwand der Leuchte, insbesondere des Lichtabgabeelements und der Leuchtenabdeckung.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.
Vorzugsweise ist die Leuchtenabdeckung zusammen mit dem Lichtabgabeelement in einem Querschnitt der Leuchte gesehen im Wesentlichen U-förmig ausgebildet. Die U-Form umgreift dadurch insbesondere zumindest teilweise das optische Element und bildet somit mit diesem eine besonders kompakte Anordnung.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. As a result, the U-shape in particular at least partially surrounds the optical element and thus forms a particularly compact arrangement with it.
Das optische Element kann im Wesentlichen parallel und vorzugsweise beabstandet zur Leuchtenabdeckung vorgesehen sein.The optical element can be provided essentially parallel and preferably at a distance from the lamp cover.
Zur sicheren Halterung und/oder Befestigung des optischen Elements kann die Leuchte, vorzugsweise das Lichtabgabeelement, besonders bevorzugt die Seitenwände des Lichtabgabeelements, Halteelemente wie z.B. Vorsprünge zur Halterung des optischen Elements aufweisen.For secure holding and / or fastening of the optical element, 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.
Im Hinblick auf eine effizientere Fertigung des optischen Elements und des Lichtabgabeelement kann das optische Element integral, vorzugsweise als Spritzgussteil, mit dem Lichtabgabeelement ausgebildet sein.With a view to more efficient production of the optical element and the light-emitting element, the optical element can be formed integrally, preferably as an injection-molded part, with the light-emitting element.
Vorzugsweise ist das optische Element ein Prismenelement, besonders bevorzugt ein asymmetrisches Entblendungsprismenelement (z.B. eine ADP-Optik) oder eine Mikroprismenoptik (MPO), welche jeweils insbesondere als Platte ausgebildet sein können. Das Prismenelement eignet sich dabei im besonders hohen Maße für die gewünschte definierte Lichtabgabe des optischen Elements. Außerdem kann mittels Einlegen unterschiedlich gestalteter Prismenelemente besonders gut die Abstrahlcharakteristik verändert werden, d.h. insbesondere von einer symmetrischen zu einer asymmetrischen Lichtabgabe gewechselt werden. Die Mikroprismenoptik eignet sich insbesondere für eine vorteilhafte Entblendung der Leuchte, wobei das asymmetrische Entblendungsprismenelement insbesondere für die asymmetrische Lichtabgabe vorteilhaft ist.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. In addition, by inserting differently designed prism elements, 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.
Das Prismenelement kann dabei eine die Prismen aufweisende Seite aufweisen, wobei die die Prismen aufweisende Seite vom Diffusorelement abgewandt und vorzugsweise zur Leuchtenabdeckung hin gerichtet ist. Das heißt, bevorzugt sind die die Prismen an der Unterseite bzw. an der innenliegenden Seite der Leuchtenabdeckung vorgesehen.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.
Ferner kann die Leuchte ein Gehäuse zur Aufnahme des Leuchtmittels, des Kollimators, des Diffusorelements und des Lichtabgabeelements aufweisen. Das Gehäuse dient dabei primär dem Schutz der aufgenommenen Komponenten der Leuchte, insbesondere des Leuchtmittels, des Kollimators und des Diffusorelements.Furthermore, 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.
Vorzugsweise ist das Lichtabgabeelement mit dem Gehäuse über eine kraft- und/oder formschlüssige Verbindung, vorzugsweise über eine korrespondierende Verbindung wie z.B. eine Schnapp- und/oder Rastverbindung, verbunden. Dies ermöglicht insbesondere eine einfache Montage bzw. einen einfachen Austausch des Lichtabgabeelements.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.
Das Gehäuse kann ferner Seitenwände zur Begrenzung eines Raums zur Aufnahme zumindest des Leuchtmittels, des Kollimators und des Diffusorelements aufweisen, wobei die Seitenwände vorzugsweise Halteelemente, insbesondere kraft- und/oder formschlüssige Halteelemente wie z.B. Vorsprüngen, zur Halterung zumindest des Diffusorelements aufweisen. Dies ermöglicht insbesondere eine besonders einfache Montage bzw. einen besonders einfachen Austausch des Leuchtmittels, des Kollimators und des Diffusorelements.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. In particular, this enables particularly simple assembly or particularly simple replacement of the illuminant, the collimator and the diffuser element.
Das Gehäuse, vorzugsweise die Seitenwände des Gehäuses, und das Lichtabgabeelement, vorzugsweise die Seitenwände des Lichtabgabeelements, können jeweils freie Endbereiche aufweisen, wobei die freien Endbereiche des Gehäuses mit den freien Endbereichen des Lichtabgabeelements verbunden sind, und wobei vorzugsweise die Endbereiche des Lichtabgabeelements jeweils zwischen einem der Endbereiche des Gehäuses und dem Diffusorelement angeordnet sind. Dadurch kann insbesondere das Lichtabgabeelement einerseits einfach durch das Gehäuse aufgenommen werden und andererseits mit dem Gehäuse zusammen zum Schutz der durch das Gehäuse aufgenommenen Komponenten dienen.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. As a result, 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.
Der Kollimator kann derart ausgestaltet und zum Leuchtmittel angeordnet sein, dass ein erster Teil des von dem Leuchtmittel ausgehenden und in den Kollimator eintretenden Lichts direkt zu der zum Diffusor gerichteten Seite des Kollimators gelangt, und/oder dass ein zweiter Teil des von dem Leuchtmittel ausgehenden und in den Kollimator eintretenden Lichts in dem Kollimator zunächst totalreflektiert wird, bevor der zweite Teil zu der zum Diffusor gerichteten Seite des Kollimators gelangt. Auf diese Weise wird insbesondere bewirkt, dass die von dem Kollimator abgegebenen Lichtstrahlen einerseits nahezu parallel den Kollimator in Richtung Diffusor verlassen und andererseits gut gemischt werden, um unterschiedliche Farbeffekte hinsichtlich der Lichtabgabe vermeiden zu können. Außerdem können dadurch die durch das Lichtabgabeelement und das optische Element abgegebenen Lichtanteile variiert werden.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. In particular, 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. In addition, the light components emitted by the light emitting element and the optical element can thereby be varied.
Zur besonders vorteilhaften Totalreflektion des zweiten Teils des Lichts kann der Kollimator, vorzugsweise eine im Kollimator ausgebildete Struktur wie z.B. ein Kegel, Seitenwände zur Totalreflektion des zweiten Teil des Lichts aufweisen.For the particularly advantageous total reflection of the second part of the light, 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.
Der Kollimator kann zudem eine Aussparung für den Eintritt der beiden Teile des Lichts in den Kollimator aufweisen, wobei vorzugsweise das Leuchtmittel in die Aussparung hineinragt. Dadurch können insbesondere die Lichtstrahlen besonders vorteilhaft gemischt werden, um unterschiedliche Farbeffekte hinsichtlich der Lichtabgabe vermeiden zu können.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. As a result, 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.
In einer besonders bevorzugten Ausführungsform weist der Kollimator eine TIR-Linse auf.In a particularly preferred embodiment, the collimator has a TIR lens.
Das Leuchtmittel kann auf einer vorzugsweise im Gehäuse vorgesehenen Platine angeordnet sein. Vorzugsweise ist die Platine zudem länglich, insbesondere einstückig oder mehrstückig, ausgebildet. Insbesondere bei einer länglichen Ausgestaltung der Leuchte kann somit zusammen mit der länglichen Platine eine besonders kompakte Bauweise erzielt werden.The lighting means can be arranged on a circuit board which is preferably provided in the housing. Preferably, the board is also elongated, in particular in one piece or in several pieces. In particular in the case of an elongated design of the lamp, a particularly compact design can thus be achieved together with the elongated circuit board.
Vorzugsweise weist das Leuchtmittel eine LED auf.The lighting means preferably has an LED.
Der Kollimator, das Diffusorelement, das optische Element und/oder das Lichtabgabeelement können jeweils einstückig und/oder mehrstückig ausgebildet sein. "Einstückig" ist dabei insbesondere derart zu verstehen, dass die vorgenannten Elemente jeweils als einziges Element für mehrere, vorzugsweise alle, Leuchtmittel vorgesehen sind. "Mehrstückig" ist dabei insbesondere derart zu verstehen, dass die vorgenannten Elemente jeweils je Leuchtmittel getrennt vorgesehen sind.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.
Nachfolgend wird die Erfindung anhand der Figuren der Zeichnungen, in denen vorteilhafte Ausführungsbeispiele der Erfindung dargestellt sind, beispielhaft beschrieben. In den Zeichnungen zeigen:
Figur 1- ein erstes Ausführungsbeispiel der erfindungsgemäßen Leuchte in einer perspektivischen Ansicht;
Figur 2- die in
der Figur 1 dargestellte Leuchte in einer Schnittansicht; Figur 3- ein zweites Ausführungsbeispiel der erfindungsgemäßen Leuchte in einer perspektivischen Ansicht;
Figur 4- ein drittes Ausführungsbeispiel der erfindungsgemäßen Leuchte in einer perspektivischen Ansicht;
Figur 5- die in
der Figur 4 dargestellte Leuchte in einer weiteren perspektivischen Ansicht; Figur 6- ein erster beispielhafter Strahlengang der erfindungsgemäßen Leuchte;
Figur 7- ein zweiter beispielhafter Strahlengang der erfindungsgemäßen Leuchte;
- Figur 8a
- ein Ausschnitt eines dritten beispielhaften Strahlengangs der erfindungsgemäßen Leuchte;
- Figur 8b
- ein vierter beispielhafter Strahlengang der erfindungsgemäßen Leuchte;
- Figur 8c
- ein fünfter beispielhafter Strahlengang der erfindungsgemäßen Leuchte;
- Figur 8d
- ein Ausschnitt eines sechsten beispielhaften Strahlengangs der erfindungsgemäßen Leuchte;
Figur 9a- ein viertes Ausführungsbeispiel der erfindungsgemäßen Leuchte in einer perspektivischen Ansicht;
- Figur 9b
- die in
der Figur 9a dargestellte Leuchte in einer weiteren perspektivischen Ansicht; - Figur 10a
- ein erster beispielhafter Beleuchtungseffekt der erfindungsgemäßen Leuchte mit einer Mikroprismenoptik als optisches Element;
- Figur 10b
- ein zweiter beispielhafter Beleuchtungseffekt der erfindungsgemäßen Leuchte mit einer Mikroprismenoptik als optisches Element;
- Figur 10c
- ein dritter beispielhafter Beleuchtungseffekt der erfindungsgemäßen Leuchte mit einem asymmetrischen Entblendungsprismenelement als optisches Element;
- Figur 10d
- ein vierter beispielhafter Beleuchtungseffekt der erfindungsgemäßen Leuchte mit einem asymmetrischen Entblendungsprismenelement als optisches Element;
Figur 11a- ein fünftes Ausführungsbeispiel der erfindungsgemäßen Leuchte;
Figur 11b- Leuchtdichte des in
der Figur 11a gezeigten Ausführungsbeispiels nur mit Kollimator; - Figur 11c
- Lichtverteilung des in
der Figur 11a gezeigten Ausführungsbeispiels; - Figur 11d
- Leuchtdichte des in
der Figur 11a gezeigten Ausführungsbeispiels bei Ansicht der Leuchte von unten; Figur 12a- ein sechstes Ausführungsbeispiel der erfindungsgemäßen Leuchte;
Figur 12b- Leuchtdichte des in
der Figur 12a gezeigten Ausführungsbeispiels nur mit Kollimator; - Figur 12c
- Lichtverteilung des in
der Figur 12a gezeigten Ausführungsbeispiels; - Figur 12d
- Leuchtdichte des in
der Figur 12a gezeigten Ausführungsbeispiels bei Ansicht der Leuchte von unten.
- Figure 1
- a first embodiment of the lamp according to the invention in a perspective view;
- Figure 2
- those in the
Figure 1 shown lamp in a sectional view; - Figure 3
- a second embodiment of the lamp according to the invention in a perspective view;
- Figure 4
- a third embodiment of the lamp according to the invention in a perspective view;
- Figure 5
- those in the
Figure 4 shown lamp in a further perspective view; - Figure 6
- a first exemplary beam path of the lamp according to the invention;
- Figure 7
- a second exemplary beam path of the lamp according to the invention;
- Figure 8a
- a section of a third exemplary beam path of the lamp according to the invention;
- Figure 8b
- a fourth exemplary beam path of the lamp according to the invention;
- Figure 8c
- a fifth exemplary beam path of the lamp according to the invention;
- Figure 8d
- a section of a sixth exemplary beam path of the lamp according to the invention;
- Figure 9a
- a fourth embodiment of the lamp according to the invention in a perspective view;
- Figure 9b
- those in the
Figure 9a shown lamp in a further perspective view; - Figure 10a
- a first exemplary lighting effect of the lamp according to the invention with microprismatic optics as the optical element;
- Figure 10b
- a second exemplary lighting effect of the lamp according to the invention with microprismatic optics as the optical element;
- Figure 10c
- a third exemplary lighting effect of the lamp according to the invention with an asymmetrical anti-glare prism element as the optical element;
- Figure 10d
- a fourth exemplary lighting effect of the lamp according to the invention with an asymmetrical anti-glare prism element as the optical element;
- Figure 11a
- a fifth embodiment of the lamp according to the invention;
- Figure 11b
- Luminance of the in the
Figure 11a shown embodiment only with collimator; - Figure 11c
- Light distribution of the in the
Figure 11a embodiment shown; - Figure 11d
- Luminance of the in the
Figure 11a embodiment shown with view of the lamp from below; - Figure 12a
- a sixth embodiment of the lamp according to the invention;
- Figure 12b
- Luminance of the in the
Figure 12a shown embodiment only with collimator; - Figure 12c
- Light distribution of the in the
Figure 12a embodiment shown; - Figure 12d
- Luminance of the in the
Figure 12a Embodiment shown with a view of the lamp from below.
Die
Die Leuchte 1 ist insbesondere für Arbeitsplätze (in Büros etc.) geeignet. Die Leuchte 1 ist jedoch prinzipiell für jegliche Anwendungen wie beispielsweise Kunstmuseen geeignet, welche hohe Anforderungen an die Beleuchtung, insbesondere bezüglich Blendung bzw. UGR-Werte, stellen. Üblicherweise wird die Leuchte 1 an Decken montiert, um nach unten, d.h. insbesondere von der Decke weg, abzustrahlen.The
Wie insbesondere in den
Die Leuchte 1 weist ferner einen Kollimator 5 auf. Wie beispielhaft in den
Wie beispielhaft in den
Die diffuse, d.h. insbesondere ungerichtete, Lichtabgabe des Diffusorelements 9 kann durch die Ausgestaltung des Diffusorelements 9 bewirkt werden, indem das Diffusorelement 9 z.B. Streustrukturen (Streupartikel etc.) aufweist. Das Diffusorelement 9 kann beispielsweise extrudiert werden, d.h. insbesondere aus einem extrudierten Material hergestellt werden. Durch die diffuse Lichtabgabe des Diffusorelements 9 wird also vorzugsweise das Licht für einen größeren Raumwinkelbereich aufgeweitet. Vorzugsweise wird das durch das Diffusorelement 9 abgegebene Licht im Wesentlichen gleichmäßig verteilt über die gesamte Fläche des Diffusorelements 9 abgegeben. Dies kann insbesondere durch die Ausgestaltung und Anordnung des Kollimators 5 bewirkt werden. Das Diffusorelement 9 weist vorzugsweise eine Dicke von 3 mm auf.The diffuse, i.e. in particular non-directional, light emission of the
Ferner weist die Leuchte 1, wie beispielhaft insbesondere in den
Wie beispielhaft in den
Die Leuchte 1 weist ferner ein klares Lichtabgabeelement 10 auf, welches sich zwischen Diffusorelement 9 und optischem Element 13 erstreckt, um mit diesen einen Raum R zu begrenzen. Das Lichtabgabeelement 10 erstreckt sich dabei wenigstens teilweise zwischen Diffusorelement 9 und optischem Element 13. Das heißt, vom Leuchtmittel 2 aus gesehen ist das klare Lichtabgabeelement 10 hinter dem Diffusorelement 9 und zumindest teilweise vor dem optischen Element 13 angeordnet.The
Vorzugsweise weist das Lichtabgabeelement 10 zumindest zwei bevorzugt sich gegenüberliegende Seitenwände 11, 12 auf. Die Seitenwände 11, 12 begrenzen also dann zusammen mit dem Diffusorelement 9 und dem optischem Element 13 den Raum R. Wie insbesondere in den
Wie beispielhaft in den
Wie bereits erwähnt, ist das Lichtabgabeelement 10 klar ausgeführt, insbesondere derart, dass durch das Lichtabgabeelement 10 hindurch geschaut werden kann. Das Lichtabgabeelement 10 ist also durchsichtig und vorzugsweise farblos ausgeführt. Insbesondere ist das Diffusorelement 9 bei Blick von außen, d.h. z.B. bei einer Ansicht gemäß den
Der Kollimator 5 kann derart ausgestaltet und zum Leuchtmittel 2 angeordnet sein, dass zwei von dem Leuchtmittel 2 ausgehende Teile des Lichts L1, L2 in einer insbesondere bezüglich des Diffusorelements 9, des optischen Elements 13 und/oder des Lichtabgabeelements 10 bestimmten Art und Weise in den Kollimator 5 eintreten und aus diesem austreten:
- Wie beispielhaft in
den Figuren 6 ,7 und8d dargestellt, kann der Kollimator 5 derart ausgestaltet und zum Leuchtmittel 2 angeordnet sein, dass ein erster Teil L2 desvon dem Leuchtmittel 2 ausgehenden und inden Kollimator 5 eintretenden Lichts direkt zu der zum Diffusor 9gerichteten Seite 8 desKollimators 5 gelangt, und dass ein zweiter Teil L1 desvon dem Leuchtmittel 2 ausgehenden und inden Kollimator 5 eintretenden Lichts indem Kollimator 5 zunächst total reflektiert wird, bevor der zweite Teil L1 zu der zum Diffusor 9gerichteten Seite 8 desKollimators 5 gelangt. Wie beispielhaft inden Figuren 6 ,7 und8d dargestellt, durchtritt der erste Teil L2 der Lichtstrahlen in einemMittelbereich den Kollimator 5, wobei der zweite Teil L1 seitlich von diesemMittelbereich den Kollimator 5 durchtritt. Durch einen solchen Strahlengang der Teile L1, L2 gelangt ein Teil, insbesondere der Großteil, desvon dem Diffusorelements 9 abgegebenen Lichts zum optischenElement 13, wobei der andere Teil desvon dem Diffusorelements 9 abgegebenen Lichts zum Lichtabgabeelement 10, insbesondere zu dessen Seitenwänden 11, 12, gelangt. Die vorgenannten Teile desvon dem Diffusorelement 9 abgegebenen Lichts durchtreten dannwiederum das Lichtabgabeelement 10, insbesondere dessen Seitenwände 11, 12, bzw.das optische Element 13, um somit die gewünschte optische Wirkung der Leuchte 1 zu bewirken. - Wie beispielhaft in den
Figuren 8a und 8b dargestellt, kann auch vorgesehen sein, dass derKollimator 5 derart ausgestaltet und zum Leuchtmittel 2 angeordnet ist, dass (nahezu) ausschließlich der zweite Teil L1 desvon dem Leuchtmittel 2 ausgehenden Lichts in der vorgenannten Art undWeise den Kollimator 5 totalreflektierend durchtritt. Bei dieser Ausführung erhöht sich jener Teil desvon dem Diffusorelements 9 abgegebenen Lichts, welcher zum Lichtabgabeelement 10, insbesondere zu dessen Seitenwänden 11, 12, gelangt, sodass der andere Teil desvon dem Diffusorelement 9 abgegebenen Lichts, welcher zum optischenElement 13 gelangt, sich entsprechend verringert. Dadurch kann die optische Wirkung derLeuchte 1, insbesondere hinsichtlich des Raumwinkelbereichs derLeuchte 1, variiert werden. - Wie beispielhaft in der
Figur 8c dargestellt, kann auch vorgesehen sein, dass derKollimator 5 derart ausgestaltet und zum Leuchtmittel 2 angeordnet ist, dass (nahezu) ausschließlich der erste Teil L2 desvon dem Leuchtmittel 2 ausgehenden Lichts in der vorgenannten Art und Weise, also ohne Totalreflektion indem Kollimator 5,den Kollimator 5 durchtritt. Bei dieser Ausführungsform verringert sich jener Teil desvon dem Diffusorelements 9 abgegebenen Lichts, welcher zum Lichtabgabeelement 10, insbesondere zu dessen Seitenwänden 11, 12, gelangt, sodass der andere Teil desvon dem Diffusorelement 9 abgegebenen Lichts, welcher zum optischenElement 13 gelangt, sich entsprechend vergrößert. Dadurch kann ebenfalls die optische Wirkung derLeuchte 1, insbesondere hinsichtlich des Raumwinkelbereichs derLeuchte 1, variiert werden.
- As exemplified in the
Figures 6 ,7th and8d shown, thecollimator 5 can be designed and arranged in relation to theilluminant 2 such that a first part L2 of the light emanating from theilluminant 2 and entering thecollimator 5 reaches theside 8 of thecollimator 5 directed towards thediffuser 9, and that a The second part L1 of the light emanating from theilluminant 2 and entering thecollimator 5 is initially totally reflected in thecollimator 5 before the second part L1 reaches theside 8 of thecollimator 5 directed towards thediffuser 9. As exemplified in theFigures 6 ,7th and8d As shown, the first part L2 of the light rays passes through thecollimator 5 in a central region, the second part L1 passing through thecollimator 5 to the side of this central region. Through such a beam path of the parts L1, L2 a part, in particular the majority, of the light emitted by thediffuser element 9 reaches theoptical element 13, the other part of the light emitted by thediffuser element 9 to thelight emitting element 10, in particular to its 11, 12. The aforementioned parts of the light emitted by theside walls diffuser element 9 then in turn pass through thelight emitting element 10, in particular its 11, 12, or theside walls optical element 13, in order thus to bring about the desired optical effect of theluminaire 1. - As exemplified in the
Figures 8a and 8b It can also be provided that thecollimator 5 is designed and arranged in relation to theilluminant 2 in such a way that (almost) exclusively the second part L1 of the light emanating from theilluminant 2 passes through thecollimator 5 in a totally reflective manner in the aforementioned manner. In this embodiment, that part of the light emitted by thediffuser element 9 which reaches thelight emitting element 10, in particular its 11, 12, increases, so that the other part of the light emitted by theside walls diffuser element 9 which reaches theoptical element 13 is increased accordingly reduced. As a result, the optical effect of thelamp 1, in particular with regard to the solid angle range of thelamp 1, can be varied. - As exemplified in the
Figure 8c It can also be provided that thecollimator 5 is designed and arranged in relation to theilluminant 2 in such a way that (almost) exclusively the first part L2 of the light emanating from theilluminant 2 in the aforementioned manner, that is, without total reflection in thecollimator 5, thecollimator 5 passes. In this embodiment, that part of the light emitted by thediffuser element 9 which reaches thelight emitting element 10, in particular its 11, 12, is reduced, so that the other part of the light emitted by theside walls diffuser element 9 which arrives at theoptical element 13 is reduced enlarged accordingly. As a result, the optical effect of thelamp 1, in particular with regard to the solid angle range of thelamp 1, can also be varied.
Durch Variation der Teile L1, L2 des von dem Leuchtmittel 2 abgegebenen Lichts, insbesondere durch die Ausgestaltung und Anordnung des Kollimators 5, kann also die durch das optische Element 13 bzw. durch das Lichtabgabeelement 10 durchtretenden Teile des von dem Diffusorelement 9 abgegebenen Lichts variiert werden, um somit z.B. den Raumwinkelbereich und/oder die Blendung der Leuchte 1 zu steuern.By varying the parts L1, L2 of the light emitted by the lighting means 2, in particular through the design and arrangement of the
Wie insbesondere in den
Ferner kann der Kollimator eine Aussparung 7, insbesondere eine Lichteintrittsöffnung wie z.B. eine Bohrung, für den Eintritt der beiden Teile L1, L2 des Lichts in den Kollimator 5 aufweisen. Die Aussparung 7 ist in einem Querschnitt gesehen vorzugsweise mittig in dem Kollimator 5 vorgesehen. Vorzugsweise ist die Aussparung 7 derart gebildet, dass der zweite Teil L1 des Lichts über die Mantelfläche der Aussparung 7 in den Kollimator 5 eintritt, wobei der erste Teil L2 des Lichts über den Boden der Aussparung 7 in den Kollimator 5 eintritt. Der Boden der Aussparung 7 kann eine konvexe und/oder mit einer Spitze in die Aussparung 7 ragende Form aufweisen.Furthermore, the collimator can have a
Das Leuchtmittel 2 ist vorzugsweise direkt unter der Aussparung 7 vorgesehen. Außerdem kann das Leuchtmittel 2 in die Aussparung 7 hineinragen. In einer alternativen Ausführungsform kann das Leuchtmittel 2 zur Aussparung 7 auch beabstandet sein.The lighting means 2 is preferably provided directly under the
Vorzugsweise weist die Leuchte 1 ferner eine Leuchtenabdeckung 14 auf. Die Leuchtenabdeckung 14 ist z.B. in den
Die Leuchte 1, vorzugsweise das Lichtabgabeelement 10, besonders bevorzugt die Seitenwände 11, 12 des Lichtabgabeelements 10 können Halteelemente und/oder Befestigungselemente zur Halterung des optischen Elements 13 aufweisen. Wie in der
Es kann auch vorgesehen sein, dass das optische Element 13 integral und vorzugsweise als Spritzgussteil mit dem Lichtabgabeelement 10 und/oder der Leuchtenabdeckung 14 ausgebildet ist. In diesem Fall können Halterungs- und/oder Befestigungselemente für das optische Element 13 entfallen.It can also be provided that the
Wie insbesondere in den
Eine bevorzugte Ausführungsform zur Aufnahme, d.h. zur Halterung und vorzugsweise Befestigung, des Diffusorelements 9 ist in den
Das Lichtabgabeelement 10 kann mit dem Gehäuse 15 vorzugsweise über ein kraft- und/oder formschlüssige Verbindung verbunden sein, insbesondere derart, dass das Gehäuse 15 das Lichtabgabeelement 10 nicht verdeckt. Insbesondere eine korrespondierende Verbindung wie z.B. eine Schnapp- und/oder Rastverbindung eignet sich für diese Verbindung.The light-emitting
Der Kollimator 5 erstreckt sich vorzugsweise zwischen den Seitenwänden 16, 17 des Gehäuses 15 und wird von diesen vorzugsweise mittels Befestigungsmitteln gehalten. Die Befestigungsmittel können insbesondere kraft- und/oder formschlüssige Befestigungsmittel aufweisen. Wie in den
Im nicht montierten Zustand können das Gehäuse 10, vorzugsweise dessen Seitenwände 16, 17, und das Lichtabgabeelement 10, vorzugsweise dessen Seitenwände 11, 12, freie Endbereiche 11b, 12b bzw. 16b, 17b aufweisen. Im montierten Zustand können die freien Endbereiche 11b, 12b des Lichtabgabeelements 10 mit den freien Endbereichen 16b, 17b des Gehäuses 15 verbunden sein. In einer besonders bevorzugten Ausführungsform, welche in den
Das Leuchtmittel 2 kann über Befestigungsmittel mit dem Gehäuse 15 verbunden sein. Wie in den
Die Leuchte 1 kann prinzipiell jede Form aufweisen, wobei vorzugsweise die Breite der Leuchte 1, insbesondere die Breite des optischen Elements 13, 40 mm und die Höhe des Lichtabgabeelements 15 mm beträgt. Besonders bevorzugt ist die Leuchte 1, wie in den
In den
Die Erfindung ist dabei nicht auf die dargestellten Ausführungsbeispiele beschränkt.The invention is not limited to the illustrated embodiments.
Alle vorstehend beschriebenen Merkmale oder in den Figuren gezeigten Merkmale sind im Rahmen der Erfindung beliebig vorteilhaft miteinander kombinierbar, sofern sie vom Gegenstand der folgenden Ansprüche umfasst ist.All of the features described above or shown in the figures can be advantageously combined with one another as desired within the scope of the invention, provided that they are covered by the subject matter of the following claims.
Claims (15)
- Lamp (1), in particular a workplace lamp, comprising- a lighting means (2),- a collimator (5) for emitting the light emitted by the lighting means (2) in a substantially directed manner,- a diffuser element (9) for emitting the light emitted by the collimator (5) in a substantially diffused manner,- an optical element (13) for emitting the light emitted by the diffuser element (9) in a defined manner, and- a clear light emitting element (10), which extends between the diffuser element (9) and the optical element (13) in order to delimit a space (R) together with said elements,wherein the light emitting element (10) extends at least partly between the diffuser element (9) and the optical element (13).
- Lamp (1) according to any one of the preceding claims, wherein the light emitting element (10) comprises at least two preferably opposite side walls (11, 12) in order to delimit the space (R) together with the diffuser element (9) and the optical element (13).
- Lamp (1) according to any one of the preceding claims, wherein, when viewed in a cross-section of the lamp (1), the optical element (13) together with the light emitting element (10), preferably the side walls (11, 12) thereof, is substantially U-shaped, and wherein the optical element (13) is preferably provided substantially perpendicular to the light emitting element (10), particularly preferably perpendicular to the side walls (11, 12) thereof.
- Lamp (1) according to any one of the preceding claims, wherein the light emitting element (10) is made of PMMA.
- Lamp (1) according to any one of the preceding claims, wherein the diffuser element (9) is visible through the light emitting element (10).
- Lamp (1) according to any one of the preceding claims, further comprising a lamp cover (14) for emitting the light emitted by the optical element (13),
wherein the lamp cover (14) is preferably integrally formed with the light emitting element (10), and/or
wherein, when viewed in a cross-section of the lamp (1), the lamp cover (14) together with the light emitting element (10) is preferably substantially U-shaped, and/or
wherein the optical element (13) is preferably provided substantially parallel to and particularly preferably spaced apart from the lamp cover (14). - Lamp (1) according to any one of the preceding claims, wherein the lamp (1), preferably the light emitting element (10), particularly preferably the side walls (11, 12) of the light emitting element (10), comprises holding elements (11a, 12a), such as projections, for holding the optical element (13).
- Lamp (1) according to any one of the preceding claims, wherein the optical element (13) is integrally formed, preferably as an injection molded part, with the light emitting element (10).
- Lamp (1) according to any one of the preceding claims, wherein the optical element (13) is a prism element, in particular a prism sheet,
wherein the prism element preferably comprises a side comprising the prisms, and wherein the side comprising the prisms preferably faces away from the diffuser element (9), and particularly preferably faces toward the lamp cover (14). - Lamp (1) according to any one of the preceding claims, further comprising a housing (15) for accommodating the lighting means (2), the collimator (5), the diffuser element (9) and the light emitting element (10),
wherein the light emitting element (10) is preferably connected to the housing (15) via a force- and/or form-locking connection, particularly preferably via a corresponding connection, such as a snap and/or latching connection, and/or wherein the housing preferably further comprises side walls (16, 17) for delimiting a space for accommodating at least the lighting means (2), the collimator (5) and the diffuser element (9), wherein the side walls (16, 17) particularly preferably comprise holding elements (16a, 17a), in particular force and/or form-locking holding elements such as projections and/or recesses, for holding at least the diffuser element (9), and/or wherein the housing (15), preferably the side walls (16, 17) of the housing (15), and the light emitting element (10), preferably the side walls (11, 12) of the light emitting element (10), preferably respectively comprise free end regions (11b, 12b; 16b, 17b), wherein the free end regions (16b, 17b) of the housing (15) are connected to the free end regions (11b, 12b) of the light emitting element (10), and wherein the end regions (11b, 12b) of the light emitting element (10) are particularly preferably respectively disposed between one of the end regions (16b, 17b) of the housing (15) and the diffuser element (9). - Lamp (1) according to any one of the preceding claims, wherein the collimator (5) is configured and disposed relative to the lighting means (2) such that- a first portion (L2) of the light emanating from the lighting means (2) and entering the collimator (5) reaches the side (8) of the collimator (5) facing the diffuser element (9) directly, and/or that- a second portion (L1) of the light emanating from the lighting means (2) and entering the collimator (5) is first totally reflected in the collimator (5) before the second portion reaches the side (8) of the collimator (5) facing the diffuser element (9),wherein the collimator (5), particularly preferably a structure (6), such as a cone, configured in the collimator (5), preferably comprises side walls for total reflection of the second portion (L1) of the light, and/or
wherein the collimator (5) preferably comprises a recess (7) for the entry of the two portions (L1, L2) of the light into the collimator (5), wherein the lighting means (2) particularly preferably projects into the recess (7). - Lamp (1) according to any one of the preceding claims, wherein the collimator (5) comprises a TIR lens.
- Lamp (1) according to any one of the preceding claims, wherein the lighting means (2) is disposed on a circuit board (2a), which is preferably provided in the housing (15) and is particularly preferably elongated, and/or
wherein the lighting means (2) comprises an LED. - Lamp (1) according to any one of the preceding claims, wherein the lamp (1) is elongated and wherein the collimator (5), the diffuser element (9), the optical element (13) and/or the light emitting element (14) is/are preferably elongated, and/or wherein, when viewed in the longitudinal direction of the lamp (1), the space (R) is at least partly delimited.
- Lamp (1) according to any one of the preceding claims, wherein the collimator (5), the diffuser element (9), the optical element (13) and/or the light emitting element (10) are respectively formed in one piece and/or in multiple pieces.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202017102009.6U DE202017102009U1 (en) | 2017-04-05 | 2017-04-05 | lamp |
PCT/EP2018/057970 WO2018184951A1 (en) | 2017-04-05 | 2018-03-28 | Luminaire |
Publications (2)
Publication Number | Publication Date |
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EP3607247A1 EP3607247A1 (en) | 2020-02-12 |
EP3607247B1 true EP3607247B1 (en) | 2021-08-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18715603.9A Active EP3607247B1 (en) | 2017-04-05 | 2018-03-28 | Luminaire |
Country Status (4)
Country | Link |
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EP (1) | EP3607247B1 (en) |
AT (1) | AT17249U1 (en) |
DE (1) | DE202017102009U1 (en) |
WO (1) | WO2018184951A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4177517A1 (en) * | 2021-11-09 | 2023-05-10 | RIDI-LEUCHTEN GmbH | Optical element for a light and light with optical element |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202019106804U1 (en) * | 2019-12-06 | 2021-03-09 | Zumtobel Lighting Gmbh | Optical system for influencing the light output of an elongated light source |
DE102020111374A1 (en) | 2020-04-27 | 2021-10-28 | Trilux Gmbh & Co. Kg | Optical system for a lamp for the specified illumination of a work surface |
US11428398B1 (en) * | 2021-06-21 | 2022-08-30 | Troy-CSL Lighting Inc. | Adjustable lighting device with further optic |
Family Cites Families (8)
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AU6202600A (en) * | 1999-07-21 | 2001-02-13 | Teledyne Lighting And Display Products, Inc. | Lighting apparatus |
EP1711739A4 (en) * | 2004-01-28 | 2008-07-23 | Tir Technology Lp | Directly viewable luminaire |
IT1391091B1 (en) * | 2008-07-15 | 2011-11-18 | Fraen Corp Srl | LIGHTING DEVICE WITH ADJUSTABLE LIGHTING, IN PARTICULAR FOR AN ELECTRIC TORCH |
DE102009034841B4 (en) * | 2009-07-27 | 2020-11-26 | Emz-Hanauer Gmbh & Co. Kgaa | Light emitting device for a drum of a household appliance |
US8944647B2 (en) * | 2010-09-02 | 2015-02-03 | Optotune Ag | Illumination source with variable divergence |
US20120250330A1 (en) * | 2011-03-31 | 2012-10-04 | Fusion Optix, Inc. | Optical element and collimating optical assembly |
JP2014089941A (en) * | 2012-10-03 | 2014-05-15 | Koito Mfg Co Ltd | Vehicular lighting unit |
EP2924333A1 (en) * | 2014-03-27 | 2015-09-30 | Belux IP AG | Modular lighting device |
-
2017
- 2017-04-05 DE DE202017102009.6U patent/DE202017102009U1/en not_active Expired - Lifetime
- 2017-06-27 AT ATGM146/2017U patent/AT17249U1/en not_active IP Right Cessation
-
2018
- 2018-03-28 WO PCT/EP2018/057970 patent/WO2018184951A1/en unknown
- 2018-03-28 EP EP18715603.9A patent/EP3607247B1/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4177517A1 (en) * | 2021-11-09 | 2023-05-10 | RIDI-LEUCHTEN GmbH | Optical element for a light and light with optical element |
Also Published As
Publication number | Publication date |
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AT17249U1 (en) | 2021-10-15 |
DE202017102009U1 (en) | 2018-07-09 |
WO2018184951A1 (en) | 2018-10-11 |
EP3607247A1 (en) | 2020-02-12 |
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