• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a lamp (1), in particular a workplace lamp, comprising a light source (2), a collimator (5) for the essentially directed light output of the light emitted by the light source (2), a diffuser element (9) for the essentially diffuse light output of the light emitted by the collimator (5), an optical element (13) for the defined light output of the light emitted by the diffuser element (9), and a clear light-emitting element (10) which extends between the diffuser element (9) and the optical element (13) to delimit a space (R) with them.
    公开号:AT17249U1
    申请号:TGM146/2017U
    申请日:2017-06-27
    公开日:2021-10-15
    发明作者:
    申请人:Zumtobel Lighting Gmbh；
    IPC主号:
    专利说明:

    description
    LAMP [0001] The invention relates to a lamp, in particular a workplace lamp.
    Lights 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) procedure 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, i.e. 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. do not exceed 19 if possible. UGR maximum values for stairs and corridors are indicated with the values 25 and 28, respectively. The aim is to keep the UGR value of a luminaire, i.e. especially a workplace luminaire, as low as possible in order to minimize glare. At the same time, however, it should be ensured that the workplace is adequately lit.
    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 costs. 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.
    [0004] The invention is therefore based on the object of creating a lamp which can provide an optimized UGR value, in particular with minimized manufacturing and assembly costs.
    The object is achieved according to the invention 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.
    A lamp according to the invention has: a light source, a collimator for the essentially directed light output of the light emitted by the light source, a diffuser element (preferably spaced from the collimator) for the essentially diffuse light output of the light emitted by the collimator, a (preferably from Diffuser element spaced apart and in particular provided on the side of the diffuser element facing away from the collimator) optical element for the defined light output of the light emitted by the diffuser element, and a clear light output element which extends between (the preferably spaced apart) diffuser element and optical element in order to provide one with these To limit space, especially in the side view of the luminaire.
    [0007] A “directed light output” is preferably understood to mean a kind of bundling of light in order to direct the light rays 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.
    [0008] A “clear light-emitting element” is preferably 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.
    [0009] A “defined light output” is preferably 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 seen at least through the designated elements at least in a side view of the same or of the lamp
    partially understood laterally surrounding (cavity) space.
    The luminaire according to the invention and, in particular, with a sandwich-like structure offers a simple means of minimizing in particular the glare while at the same time having a small overall volume, i.e. in particular with regard to the dimensions such as the width of the luminaire. In particular, when viewing the luminaire from below, a UGR value of less than 19 at at least 130o0 lm / m can be achieved, with the light distribution of the luminaire being easily changed by replacing the optical element. For example, it is easy to switch from a symmetrical to an asymmetrical light distribution or vice versa, whereby the asymmetrical light distribution can be used, among other things, to use 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 widening is in particular such that the light emitted by the diffuser is emitted both by the light emitting element and is 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, i.e. in particular the mixing chamber effect of the room according to the invention, results in a particularly advantageous depth effect, i.e. a 3D effect, of the lamp when the lamp is viewed from the outside. In addition, the interaction of the aforementioned optics achieves a particularly advantageous (optical) efficiency of the luminaire, which is greater than 70%.
    The light-emitting element preferably 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.
    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, with the optical element preferably being substantially perpendicular to the light-emitting element , particularly preferably perpendicular to its side walls, is provided.
    The light-emitting element is preferably formed from a transparent material, particularly 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. In particular if only the diffuser element can be seen from below the optical element and through the light-emitting element, the dimensions of the luminaire, in particular with regard to its width, can be further optimized or reduced.
    The lamp can also have a lamp cover for the light emission of 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 made of the same material together with the lamp cover in the same manufacturing process, preferably in one
    single manufacturing step. This in particular reduces the assembly and production effort of the lamp, in particular the light-emitting element and the lamp cover.
    Preferably, the lamp cover is formed together with the light emitting element, viewed in a cross section of the lamp, essentially U-shaped. As a result, 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 spaced from the lamp cover.
    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 projections for holding the optical element.
    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.
    The optical element is preferably a prism element, particularly preferably an asymmetrical anti-glare prism element (e.g. ADP optics) or microprism optics (MPO), each of which can in particular be designed 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 radiation characteristics can be changed particularly well, i.e. in particular a change from a symmetrical to an asymmetrical light output. The microprismatic optics are particularly suitable for an advantageous transmission of the lamp, the asymmetrical anti-glare 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.
    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.
    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. In particular, 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 are each arranged between one of the end regions of the housing and the diffuser element. 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.
    The collimator can be designed and arranged for the lighting means that a first part of the light emanating from the lighting means and entering the collimator passes directly to the side of the collimator facing the diffuser, and / or that a second part of the from the Light emanating from the illuminant and 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.
    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.
    The collimator can also have a recess for the entry of the two parts of the light into the collimator, 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 a particularly preferred embodiment, the collimator has a TIR lens.
    The lighting means can be arranged on a circuit board 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.
    The lighting means preferably has an LED.
    The collimator, the diffuser element, the optical element and / or the light-emitting element can each be formed in one piece and / or in several pieces. “In one piece” is to be understood in particular to mean that the aforementioned elements are each provided as a single element for several, preferably all, lighting means. “Multi-piece” is to be understood in particular to mean that the aforementioned elements are provided separately for each lamp.
    The invention is described by way of example below with reference to the figures of the drawings, in which advantageous exemplary embodiments of the invention are shown. In the drawings show:
    FIG. 1 shows a first exemplary embodiment of the lamp according to the invention in a perspective view;
    FIG. 2 shows the lamp shown in FIG. 1 in a sectional view;
    FIG. 3 shows a second exemplary embodiment of the lamp according to the invention in a perspective view;
    FIG. 4 shows a third exemplary embodiment of the lamp according to the invention in a perspective view;
    FIG. 5 shows the lamp shown in FIG. 4 in a further perspective view;
    FIG. 6 shows a first exemplary beam path of the lamp according to the invention; FIG. 7 shows a second exemplary beam path of the lamp according to the invention;
    [0044] FIG. 8a shows a section of a third exemplary beam path of the lamp according to the invention;
    FIG. 8b shows a fourth exemplary beam path of the lamp according to the invention; FIG. 8c shows a fifth exemplary beam path of the lamp according to the invention;
    FIG. 8d shows a section of a sixth exemplary beam path of the lamp according to the invention;
    FIG. 9a shows a fourth exemplary embodiment of the lamp according to the invention in a perspective view;
    FIG. 9b shows the lamp shown in FIG. 9a in a further perspective view;
    FIG. 10a shows a first exemplary lighting effect of the lamp according to the invention with microprismatic optics as the optical element;
    FIG. 10b shows a second exemplary lighting effect of the lamp according to the invention with microprismatic optics as the optical element;
    FIG. 10c shows a third exemplary lighting effect of the lamp according to the invention with an asymmetrical anti-glare prism element as the optical element;
    FIG. 10d shows a fourth exemplary lighting effect of the lamp according to the invention with an asymmetrical anti-glare prism element as the optical element;
    FIG. 11a shows a fifth exemplary embodiment of the lamp according to the invention;
    FIG. 116 _ luminance of the exemplary embodiment shown in FIG. 11a only with a collimator;
    FIG. 11c shows the light distribution of the exemplary embodiment shown in FIG. 11a;
    FIG. 11d luminance of the exemplary embodiment shown in FIG. 11a when the lamp is viewed from below;
    FIG. 12a shows a sixth exemplary embodiment of the lamp according to the invention;
    FIG. 12b luminance of the exemplary embodiment shown in FIG. 12a only with a collimator;
    FIG. 12c shows the light distribution of the exemplary embodiment shown in FIG. 12a;
    FIG. 12d luminance of the exemplary embodiment shown in FIG. 12a when the lamp is viewed from below.
    Figures 1 to 12d show different 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.
    As shown in particular in FIGS. 1 to 3 and 6 to 8d, 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 illuminant 2 is preferably carried out in a main light output direction, which is particularly preferably essentially perpendicular to the mounting position of the illuminant 2, i.e., for example, perpendicular to a flat side of the circuit board 2a. A “main light emission direction” is understood here to mean in particular an axis such as, for example, an axis of symmetry of a light cone generated by the illuminant 2. In a particularly preferred embodiment of the lamp 1, the lighting means 2 has an LED.
    The lamp 1 also has a collimator 5. As shown by way of example in FIGS. 6 to 8d, 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. In a particularly preferred embodiment, the collimator 5 has a TIR (“total internal reflection”) lens. In addition, so-called narrow beam (NB) lenses, for example, can be used as the collimator 5.
    As shown by way of example in FIGS. 1 to 8d, the lamp 1 also has a diffuser element 9 for the essentially diffuse light output of the light output by the collimator 5. For this purpose, 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. At the side 8, the light bundled by the collimator 5 is preferably refracted. Preferably, 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 is in particular flat.
    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. As a result of 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.
    Furthermore, as shown by way of example in particular in FIGS. 1 to 7, 8b and 8c, the luminaire 1 has an optical element 13 for the defined light output of the light output by the diffuser element 9. Here, the optical element 13, viewed from the lighting means 2, is preferably provided behind the diffuser element 9 and particularly preferably at a distance from the diffuser element 9. 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.
    As shown by way of example in FIGS. 2 to 7, 8b and 8c, the optical element 13 is a prism element, in particular a prism plate. In this case, 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 (e.g. at least a 10x10 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. In a particularly preferred embodiment, the optical element 13 is an asymmetrical anti-glare prismatic element (e.g. an ADP optic). FIGS. 11a to 12d show the difference between the use of microprismatic optics (MPO) as the optical element 13 (FIGS. 11a to 11) and an asymmetrical (ADP) as the optical element 13 (FIGS. 12a to 12d). There is a difference in the light distribution (Figures 11c and 12c) and in the luminance (Figures 11d and 12d) in that the light distribution (Figure 12c) and luminance (Figure 12d) caused by the asymmetrical anti-glare element are asymmetrical.
    The luminaire 1 also has 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 with them. The light-emitting element 10 can extend at least partially between the diffuser element 9 and the optical element 13. That is, viewed from the lighting means 2, the clear light-emitting element 10 is preferably 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. As shown in particular in FIGS. 2, 6, 7, 8b and 8c, the light-emitting element 10, in particular its side walls 11, 12, together with the optical element 13, seen in a cross section of the lamp 2, can be essentially U-shaped or also V-shaped. In particular, the optical element 13 can be arranged essentially perpendicular to the side walls 11, 12 of the light-emitting element 10.
    As shown by way of example in FIGS. 1, 3, 4 and 5, the space R is preferably designed essentially as a cuboid. However, the space R may have another three-dimensional shape such as a shape which is trapezoidal in cross section.
    As already mentioned, the light-emitting element 10, i.e. in particular its side walls 11, 12, is clearly embodied, in particular in such a way that it is possible to see through the light-emitting element 10. The light-emitting element 10 is therefore preferably made transparent and colorless. In particular, the diffuser element 9 is visible through the light-emitting element 13 when viewed from the outside, i.e. for example in a view according to FIGS. 1, 4 or 9b. In principle, any transparent and preferably colorless material, such as PMMA, is suitable as the material for the light-emitting element.
    The collimator 5 can be designed and arranged in relation to the illuminant 2 in such a way that two parts of the light L1, L2 emanating from the illuminant 2 in a particular type and type with regard to the diffuser element 9, the optical element 13 and / or the light emitting element 10 Way to enter and exit the collimator 5:
    As shown by way of example in FIGS. 6, 7 and 8d, the collimator 5 can be designed and arranged in relation to the illuminant 2 in such a way that a first part L2 of the light emanating from the illuminant 2 and entering the collimator 5 leads directly to the Diffuser 9-facing side 8 of the collimator 5 arrives, and that a second part L1 of the light emanating from the illuminant 2 and entering the collimator 5 is first totally reflected in the collimator 5 before the second part L1 goes to the side facing the diffuser 9 8 of the collimator 5 arrives. As shown by way of example in FIGS. 6, 7 and 8d, the first part L2 of the light beams passes through the collimator 5 in a central region, the second part L1 passing through the collimator 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 the diffuser element 9 reaches the optical element 13, the other part of the light emitted by the diffuser element 9 to the light emitting element 10, in particular to its side walls 11, 12. The aforementioned parts of the light emitted by the diffuser element 9 then in turn pass through the light emitting element 10, in particular its side walls 11, 12, or the optical element 13, in order thus to bring about the desired optical effect of the luminaire 1.
    As shown by way of example in FIGS. 8a and 8b, it can also be provided that the collimator 5 is designed and arranged in relation to the illuminant 2 in such a way that (almost) exclusively the second part L1 of the light emanating from the illuminant 2 in the aforementioned Way through the collimator 5 totally reflective. In this embodiment, that part of the light emitted by the diffuser element 9 which reaches the light emitting element 10, in particular its side walls 11, 12, increases, so that the other part of the light emitted by the diffuser element 9 which reaches the optical element 13 is increased accordingly reduced. As a result, the optical effect of the lamp 1, in particular with regard to the solid angle range of the lamp 1, can be varied.
    As shown by way of example in FIG. 8c, it can also be provided that the collimator 5 is designed and arranged in relation to the illuminant 2 in such a way that (almost) exclusively the first part L2 of the light emanating from the illuminant 2 in the aforementioned manner and Way, that is, without total reflection in the collimator 5, the collimator 5 passes. In this embodiment, that part of the light emitted by the diffuser element 9 which reaches the light emitting element 10, in particular its side walls 11, 12, is reduced, so that the other part of the light emitted by the diffuser element 9 which arrives at the optical element 13 is reduced enlarged accordingly. As a result, the optical effect of the lamp 1, in particular with regard to the solid angle range of the lamp 1, can also be varied.
    By varying the parts L1, L2 of the light emitted by the illuminant 2, in particular by the design and arrangement of the collimator 5, the parts passing through the optical element 13 or through the light emitting element 10 can be emitted by the diffuser element 9 Light can be varied in order to control, for example, the solid angle range and / or the glare of the lamp 1.
    As shown in particular in FIGS. 6, 7, 8a, 8b and 8d, the collimator 5 can have a structure 6, preferably integrally formed in the collimator 5, 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.
    Furthermore, 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. In addition, the lighting means 2 can protrude into the recess 7. In an alternative embodiment, the lighting means 2 can also be spaced apart from the recess 7.
    The luminaire 1 preferably also has a luminaire cover 14. The lamp cover 14 is shown, for example, in Figures 1 to 7, 8b, 8c and 9a to 10d. 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 can be seen in particular from FIGS. 9 a to 10 d, the optical element 13 can preferably be seen through the lamp cover 14. The lamp cover 14 can be designed like the light-emitting element 10, i.e. the lamp cover 14 can in particular be designed to be clear. As shown by way of example in the figures, 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, i.e., for example, seen in the plane of the drawing in FIG. 2, 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 shown by way of example in FIGS. 11a to 11d and 12a to 12d, 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. As shown in FIG. 7, for example, 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.
    Preferably, the projections 11a, 12a together with the lamp cover 14 form a slot into which the optical element 13 can be pushed.
    It can also be provided that 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.
    As shown in particular in FIGS. 1 to 8d, the luminaire 1 preferably has a housing 15 for receiving 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 delimit 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, i.e. for holding and preferably fastening, the diffuser element 9 is shown in FIGS. 3 to 5, in which holding elements 16a and 17a provided in the side walls 16, 17 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. In particular, 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. In particular, 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. As shown by way of example in FIGS. 6 and 7, 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 preferably be in contact with them.
    In the non-assembled state, 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. In the assembled state, 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. In a particularly preferred embodiment, which is shown in FIGS. 6 and 7, 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.
    Preferably, the end regions 11b, 12b of the light-emitting element 10 each encompass one of the end regions 16b, 17b of 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. As shown in Figures 1, 2, 4 and 5, the lighting means 2 and preferably its circuit board 2a can be connected to the housing 15, in particular to the base area 18 of the Housing
    15, be connected.
    In particular, 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. In addition, 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. As shown in FIGS. 1, 4, 9a and 9b, the lamp 1 is particularly preferably 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. In the case of an elongated design of the lamp 1, in particular the collimator 5, 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 several illuminants 2 preferably being arranged in the longitudinal direction, particularly preferably on an elongated circuit board 2a.
    In FIGS. 10a to 10d, different exemplary configurations of the lamp 1, in particular an elongated lamp 1, are shown, wherein in FIGS 10d, an asymmetrical anti-glare prism element is used as the optical element 13.
    In particular, the effect is clearly recognizable that through the inventive arrangement of the collimator 5, the diffuser element 9, the optical element 13 and the light emitting element 10, the punctiform appearance of several illuminants 2 when viewing the lamp from the outside and through the optical element 13 can be varied through it, ie in particular disappears (FIGS. 10a, 10b and 10d). Especially when using the microprismatic optics as the optical element 13, the punctiform appearance of the one or more illuminants 2 can disappear.
    The invention is not limited to the illustrated embodiments. 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.
    权利要求:
    Claims (10)
    [1]
    1. Light (1), in particular workplace light, having
    - a lamp (2),
    - A collimator (5) for the essentially directed light emission of the light emitted by the illuminant (2),
    - A diffuser element (9) for the essentially diffuse light emission of the light emitted by the collimator (5),
    - An optical element (13) for the defined light emission of the light emitted by the diffuser element (9),
    characterized,
    that the lamp (1) has a clear light-emitting element (10) which is located between
    Diffuser element (9) and optical element (13) extends to with these a space (R)
    limit.
    [2]
    2. Lamp (1) according to claim 1, characterized in that the light-emitting element (10) extends at least partially between the diffuser element (9) and the optical element (13), and / or that the light-emitting element (10) preferably has at least two opposing side walls (11, 12) to delimit the space (R) with the diffuser element (9) and the optical element (13).
    [3]
    3. Lamp (1) according to one of the preceding claims, characterized in that the optical element (13) together with the light emitting element (10), preferably with its side walls (11, 12), seen in a cross section of the lamp (1) Is essentially U-shaped, and wherein the optical element (13) is preferably provided essentially perpendicular to the light-emitting element (10), particularly preferably perpendicular to its side walls (11, 12).
    [4]
    4. lamp (1) according to any one of the preceding claims, characterized in that the lamp (1) further comprises a lamp cover (14) for the light output of the light emitted by the optical element (13).
    [5]
    5. lamp (1) according to claim 4, characterized in that the lamp cover (14) is formed integrally with the light emitting element (10), and / or that the lamp cover (14) together with the light emitting element (10) in a cross section of the lamp (1) is essentially U-shaped when viewed.
    [6]
    6. Light (1) according to one of the preceding claims, characterized in that the light (1), preferably the light-emitting element (10), particularly preferably the side walls (11, 12) of the light-emitting element (10), holding elements (11a, 12a) such as, for example, has projections for holding the optical element (13).
    [7]
    7. Light (1) according to one of the preceding claims, characterized in that the optical element (13) is integrally formed, preferably as an injection-molded part, with the light-emitting element (10), and / or that the optical element (13) is a prism element, in particular a prismatic plate.
    [8]
    8. Light (1) according to one of the preceding claims, characterized in that the light (1) further comprises a housing (15) for receiving the illuminant (2), the collimator (5), the diffuser element (9) and the light emitting element ( 10).
    [9]
    9. lamp (1) according to claim 8, characterized in that
    that the light emitting element (10) is connected to the housing (15) via a non-positive and / or positive connection, preferably via a corresponding connection such as a snap and / or latching connection, and / or
    that the housing also has side walls (16, 17) to delimit a space for receiving at least the illuminant (2), the collimator (5) and the diffuser element (9), the side walls (16, 17) preferably holding elements (16a, 17a ), in particular non-positive and / or positive retaining elements such as projections and / or recesses, for holding at least the diffuser element (9).
    [10]
    10. Light (1) according to one of the preceding claims, characterized in that
    that the collimator (5) is designed and arranged in relation to the illuminant (2) in such a way that
    - A first part (L2) of the light emanating from the lighting means (2) and entering the collimator (5) reaches the side (8) of the collimator (5) directed towards the diffuser element (9), and / or that
    - A second part (L1) of the light emanating from the illuminant (2) and entering the collimator (5) is initially totally reflected in the collimator (5) before the second part is directed towards the side (8) towards the diffuser element (9) of the collimator (5).
    In addition 11 sheets of drawings
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    同族专利:
    公开号 | 公开日
    EP3607247B1|2021-08-11|
    WO2018184951A1|2018-10-11|
    EP3607247A1|2020-02-12|
    DE202017102009U1|2018-07-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20050207166A1|2004-01-28|2005-09-22|Peter Kan|Directly viewable luminaire|
    US20110267823A1|2008-07-15|2011-11-03|Marco Angelini|Lighting device with adjustable light beam, particularly for a flashlight|
    US20130170220A1|2010-09-02|2013-07-04|Optotume Ag|Illumination Source with Variable Divergence|
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    DE102009034841B4|2009-07-27|2020-11-26|Emz-Hanauer Gmbh & Co. Kgaa|Light emitting device for a drum of a household appliance|
    US8911099B2|2011-03-31|2014-12-16|Fusion Optix, Inc.|Method of developing and manufacturing optical elements and assemblies|
    JP2014089941A|2012-10-03|2014-05-15|Koito Mfg Co Ltd|Vehicular lighting unit|DE202019106804U1|2019-12-06|2021-03-09|Zumtobel Lighting Gmbh|Optical system for influencing the light output of an elongated light source|
    DE102020111374A1|2020-04-27|2021-10-28|Trilux Gmbh & Co. Kg|Optical system for a lamp for the specified illumination of a work surface|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE202017102009.6U|DE202017102009U1|2017-04-05|2017-04-05|lamp|
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