• 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 present invention relates to an elongated multi-part lens arrangement (1) for luminaires (L) for influencing a light emitted by a luminous means (2) comprising a first elongated optical element (10) having a first longitudinal axis (L2) and at least one of the first optical Element (10) in the direction of light deflection and separately provided by the first optical element (10) second elongated optical element (20) having a second longitudinal axis (L3), wherein at least the first optical element (10) at least one along the first longitudinal axis (L2) provided, defined light entry region (11) for introducing light of the illuminant (2) in the lens assembly (1), and wherein the second optical element (20) for light guiding the lens assembly (1) optically cooperates with the first optical element (10) to continue the light steering of the first optical element (10). The invention further relates to a luminaire (L) comprising a multiplicity of luminous means (2) and an elongated multipiece lens arrangement (1) according to the invention, wherein each of the light entry regions (11, 23, 33, 43) has no, one or more illuminants ( 2) are defined optically assigned.
    公开号:AT15726U1
    申请号:TGM199/2014U
    申请日:2014-05-09
    公开日:2018-05-15
    发明作者:Ebner Stephan
    申请人:Zumtobel Lighting Gmbh；
    IPC主号:
    专利说明:

    description
    LENGTH MULTIPART LENS ARRANGEMENT AND LAMP WITH SUCH A LENS ARRANGEMENT The present invention relates to an elongated multi-part lens arrangement for luminaires for influencing a light emitted by a luminous means and a corresponding luminaire with such a lens arrangement.
    Elongated lens arrangements, which are many times longer in terms of their width and can therefore be used in elongated lights, are known from the prior art. If these have, for example, discrete lenses or lens elements or lens regions, they are also referred to as a lens array. Such lens arrangements are usually made in one piece, which has the disadvantage that the thermal linear expansion of this arrangement increases with increasing length of such a lens arrangement (for example> 400 mm). This can lead to problems at a typical application temperature range from 30 ° C (e.g. in cold stores and / or in Nordic countries) to over + 40 ° C (e.g. in industrial halls and / or in warm climates such as in Africa or Arabia). The reason for this is, among other things, that the coefficient of linear expansion of metal (for example, used for or in the circuit board receiving the illuminant or the housing of the lamp) is many times higher than the coefficient of linear expansion of plastics (such as that used for the lens arrangement) Plastic; usually PMMA or PC). On the one hand, there is a risk of a mechanical collision between lamps and optics, which can damage the lighting system. On the other hand, the radiation characteristics can change sustainably and negatively due to a correspondingly large temperature difference in the different areas of application (At up to 70 ° C and more) due to the lens arrangements of different lengths and the resulting different positioning of the individual lens elements.
    It is therefore an object of the present invention to provide elongated lens arrangements and lamps equipped therewith which overcome the disadvantages described above and can also be used flexibly and safely.
    The object of the present invention is determined by the independent claims. The dependent claims further develop the central idea of the invention in a particularly advantageous manner.
    According to a first aspect, the present invention relates to an elongated multi-part lens arrangement for luminaires for influencing a light emitted by an illuminant. For this purpose, the lens arrangement has a first elongated optical element (hereinafter also referred to as the first (optical) element) with a first longitudinal axis and at least one second elongated optical element downstream of the first optical element in the light-guiding direction and provided separately from the first optical element (hereinafter also referred to as the second (optical) element) with a second longitudinal axis. At least the first optical element has at least one defined light entry region which is provided or arranged along the first longitudinal axis, or is formed, for introducing light from the illuminant into the lens arrangement. In addition to the first element, the second (or further optical elements, which will be described below) can also have corresponding light entry areas. In addition, the light entry area can be formed continuously over (the entire length) of the optical element or can have (discrete) light entry areas arranged along the longitudinal axis. For example, the light entry areas can thus be arranged or formed along the longitudinal axis of the first optical element in one or even in several rows or in combination with individually assigned light entry areas. The second optical element cooperates optically with the first optical element in order to direct the light of the lens arrangement in order to direct the light / 17
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    To continue patent office of the first optical element. If the lens arrangement has only two optical elements, then the second optical element also closes the light control of the lens arrangement and is used to emit the light preferably in a main emission direction of the lens arrangement.
    As already mentioned, in addition to the first two optical elements, the lens arrangement can furthermore have one or more further elongated optical elements which are connected downstream of at least the first optical element in the light directing direction and are provided separately from the first optical element. In this case, the further optical elements interact optically with the first and preferably the second and possibly also other further optical element in order to direct light in order to achieve a desired closed light control of the lens arrangement.
    The lens arrangement according to the present invention is consequently composed of at least two or more stacked, mechanically separated and optically coordinated elements. Since the respective optical elements have different tasks, as will be described below, they can be provided in a quantity ratio that deviates from a 1: 1 relationship. The second and the further optical elements are stacked on the first optical element or elements, the optical elements following the first element in the direction of light directing continuing the light directing of the first optical element, the last element or elements closing the light directing and consequently concluding the light directing emit the light over a light emission area. The stack of more than two different optical elements can be combined as required depending on the application.
    Because of the multi-stage and in particular multi-part design of the lens arrangement according to the invention, large and, above all, long lens arrangements can be designed in such a way that the thermal influences on the optics are minimized. As a result, the risk of collision between the illuminants and the optics can be reduced and the radiation characteristics can be stabilized for certain temperature limits.
    It is also possible to realize more complex optical geometries through the different stages of the optics, which cannot be produced, for example, with one-stage - that is, one-piece - optics, since they are then not demouldable.
    It is also made possible by the lens arrangement according to the invention, when adapting to newer and more efficient illuminants, only one or a few of the stages of the lens arrangement - that is to say only one or a few of the optical elements; preferably only the first optical element - to be replaced. This is significantly cheaper than replacing the entire lens arrangement with a completely new optic.
    The longitudinal axes of the optical elements, preferably at least the first and second optical elements, can preferably be aligned parallel to one another. Additionally or alternatively, it is also conceivable that at least one of the longitudinal axes, preferably one of the longitudinal axes of the further optical elements, in a plane perpendicular to a main emission direction of the lens arrangement (i.e. in the main extension plane of the lens arrangement or the optical elements) by a predetermined angle is oriented obliquely or transversely to the other longitudinal axes. In other words, the optical elements can be combined with one another as desired, depending on the application and the desired radiation characteristic.
    The light entry area can be formed as a recess so as to serve a defined receptacle for the lamps.
    [0013] The first optical element can preferably have a grid or grating that forms the light entry regions. Alternatively or additionally, the light entry areas can also be arranged in the form of a grid or grating. The light entry areas are thus arranged or formed in one or more rows along the longitudinal axis. At least one illuminant can then be assigned to each light entry area or grid or grid element.
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    AT15 726U1 2018-05-15 Austrian Patent Office [0014] The light entry areas or grid or grid elements are preferably designed as optical light influencing elements, in particular as lenses, or have corresponding (discrete) light influencing elements.
    The design, in particular, of the first optical element as or in the form of a grating or grid makes it possible to provide discrete or optionally lens regions. Furthermore, the grating or raster elements can consist of optical prism or lens elements or the optical element can provide discrete lenses or lens areas, which are preferably matched directly to the number of illuminants used (e.g. light-emitting diodes; LEDs). In this case, the number of light entry areas or grids or grid elements depends on the number of illuminants used. In this case, at least one illuminant is assigned to each light entry area or grid or grid element. In special applications, individual light entry areas or lattice or grid elements can also remain empty, so that not only is it possible to equip the optical elements uniformly with the illuminants assigned to the light entry areas, but optionally none, one or more illuminants can be assigned to the light entry areas in order to match the individual ones Requirements of the desired radiation characteristics to be adapted optionally.
    The optical elements are preferably at least partially in (planar) contact with other (adjacent) optical elements, in particular to simply position the optical elements relative to one another and to fix them together. The light entry areas of the second and further optical elements can preferably be at least partially in preferably flat contact with light exit areas at least one of the optical elements connected upstream in order to continue the light control of the first and correspondingly upstream optical elements.
    According to a preferred embodiment, the optical elements can have mechanically corresponding (ie matched to the respective optical neighboring elements) connecting elements for the defined connection and positioning of the optical elements to one another. For example, the connecting elements can have rails for slidingly bringing the optical elements together or comparable guides. Additionally or alternatively, pins, pins and the like and corresponding receiving elements can also be provided as connecting elements. In this way, the individual stages of the lens arrangement or of the optical lens stack can be positioned reasonably with respect to one another, since the corresponding connecting elements enable a defined alignment and secure cohesion of the individual stages. The type and design of the corresponding connecting elements depends on the type of manufacture of the respective elements and can therefore be of any design.
    At least one of the optical elements, preferably at least the second optical element, can have a recess in the longitudinal direction of the optical element - preferably over its entire length - for receiving a further optical element, preferably the first optical element.
    At least one, preferably the last optical element in the direction of light control, can have a protective element, preferably integrally formed with the optical element, for protecting the illuminants or a lamp having the lens arrangement. A protective element for protection against contamination and contact can thus be provided in a simple manner. The protective element preferably has latching elements in order to automatically cooperate with a corresponding latching element when the lens arrangement is being assembled, in order to mechanically connect or hold the lens arrangement and possibly further elements of a lamp; So to fix or position and align corresponding elements.
    The optical elements can as linear lens elements, in particular extrusion lenses, lens arrays, in particular plates with discrete lenses or lens elements, lattice or. Raster elements, MPO plates (micro prism optic plates) or KOP plates (Koopera3 / 17
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    Patentamt tive optics plates), diffractive optics, free-form optics and the like or be designed as diffusely scattering plates. The choice of the respective optics depends in particular on the type of use of the lens arrangement and the desired light directing or radiation characteristic. The respective optical elements can therefore preferably have a complex geometry when viewed in cross section. The multi-part design of the lens arrangement is therefore particularly advantageous, since even complex forms of the overall lens arrangement are provided with it comparatively simply because the individual optical elements inevitably have a lower complexity.
    According to a further aspect, the invention relates to a lamp having a multiplicity of lamps and an elongated, multi-part lens arrangement according to the invention, each of the light entry areas being assigned optically to one or more lamps in a defined manner.
    The lamp according to the invention can also have a housing for receiving the lamps and the lens arrangement, the lens arrangement - preferably the one or more elongate optical element (s) in the direction of light control - a cover of the lamp or form the housing. A closed lighting system can thus be easily provided.
    Furthermore, the lamps can be applied to a preferably elongated circuit board. The circuit board can preferably extend essentially over the entire length of the lens arrangement. The first optical element (s) can be provided detachably or non-detachably directly on the circuit board or the housing. The optical stages applied directly to the circuit board can thus simultaneously provide a type of protection against contact of the electrical components. A luminaire can thus be provided in which the first or the first optical stages are applied directly to the (LED) circuit board, while the subsequent or the subsequent stages can serve as partial or entire covering of the luminaire.
    [0024] For example, at least one, preferably the last optical element in the direction of light control, may have a protective element, preferably integrally formed with this optical element, for protecting the illuminants or a lamp having the lens arrangement. In this case, the protective element, alone or in conjunction with the housing or the circuit board or other elements of the luminaire, can provide a space which is spatially closed to the outside, in order to protect the luminaire or illuminant against contamination or contact. In particular, the latching element can preferably interact with a corresponding latching element of the lens arrangement or the lamp for mechanically connecting or holding the lens arrangement or the lamp together.
    Particularly preferably, at least one, preferably the last optical element seen in the direction of light control in the direction of the longitudinal axis of the lens arrangement is essentially as long as the housing or the illuminant or the circuit board having the lamp. In this way it is very easy to provide a closed and protected optical system.
    The lamps preferably have light-emitting diodes (LEDs).
    Further advantages and refinements of the present invention are described below with reference to the drawings of the accompanying figures.
    Figure 1 [0029] Figure 2 [0030] Figure 3 shows a lens arrangement according to the invention, shows a first optical element according to the lens arrangement according to the invention according to Figure 1, shows schematically the basic structure of a lens arrangement according to the present invention,
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    AT15 726U1 2018-05-15 Austrian Patent Office [0031] Figure 4 [0032] Figure 5 [0033] Figure 6 [0034] Figure 7 [0035] Figure 8 shows different assembly variants of individual optical grids or Raster elements of a first optical element according to the present invention shows a conventional single-stage split lens on the left side and a two-stage lens arrangement (split lens) according to the invention on the right side.
    shows a closed lens arrangement according to the present invention, shows a further embodiment of the present lens arrangement according to the invention, shows a lamp with a three-stage lens arrangement according to the invention.
    Figure 1 shows an embodiment of an elongated lens assembly 1 according to the invention for lights L (see Figure 8) for influencing a light emitted by a lamp 2. In the context of the invention, elongated is understood to mean that the lens arrangement 1, which extends essentially perpendicular to the main emission direction H in the XZ plane (main extension plane) shown in FIG. 1, is a much greater length in the direction of its longitudinal axis L1 compared to its width (in Figure 1 has shown in the direction of the X-axis). As shown in FIG. 1, the lens arrangement 1 can have an essentially rectangular basic shape, the invention not being limited to this.
    According to the invention, the elongated lens arrangement 1 is formed in several parts. For this purpose, the elongated multi-part lens arrangement 1 has a first elongated optical element 10 with a longitudinal axis L2. The first optical element 10 has at least one defined light entry region 11 (that is, it is designed or extending or arranged) along its longitudinal axis L2 for introducing light from an illuminant 2 into the lens arrangement 1.
    The light entry region 11 can preferably be designed as a recess in the corresponding — in the present case the first — optical element 10, in particular for receiving the illuminants 2. For this purpose, the recess can be represented, for example, as a continuous recess extending in the longitudinal direction of the first optical element 10. Alternatively, it is also conceivable for the first optical element 10 to have a grid or grating 12 forming the light entry regions 11, as is shown, for example, in FIG. 2. It is also conceivable that the light entry areas 11 are arranged only in the form of a grid or grid. In any case, with such a configuration, at least one illuminant 2 can be assigned to each light entry region 11 or each raster or grating element, as is shown schematically for example in FIGS. 4a and 4b. FIG. 4a shows an embodiment of the first optical element 10 in which the light entry areas 11 are matched to the number of illuminants 2 used. In this case, the number of grid or grid elements 11 is dependent on the number of lamps 2 used. However, it is also conceivable that the individual light entry areas 11 or the grid or grid elements are not always assigned a single lamp 2 is, but optionally also no lamp 2 or more lamps 2, as shown in Figure 4b. Depending on the desired radiation characteristic and design of the lens arrangement 1, special applications can thus be generated in a simple manner, in which the number and position of the lamps 2 can be freely selected accordingly. If, for example, there is no grating or grid at all, for example the light entry region 11 of the first optical element 10 is provided as a continuous recess in the first optical element 10, the individual illuminants 2 can be positioned at any position within this recess, Flexibility of the present lens arrangement 1 is further increased.
    The light entry areas 11 or the individual raster or grating elements are preferably designed as optical light influencing elements, in particular as optical ones
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    Prismatic or lens elements. Here, individual, several or all of the defined light entry areas 11 can be designed to influence the light; for example in the form of a lens or other optical elements. Consequently, the grid or lattice can also be provided as defined by light or lens elements 11 or light elements on the first optical element 10, the position of which can also be freely selected.
    In addition to the first optical element 10, the multi-part lens arrangement 1 also has at least one further, second optical element 20. This second optical element 20 also extends along a longitudinal axis L3. The second elongate optical element 20 is provided downstream in relation to the first optical element 10 in the light directing direction, the two optical elements being provided separately; are not integrally formed. The two optical elements 10, 20 cooperate optically for light control of the lens arrangement 1 in order to continue the light control of the first optical element 10 via the second optical element 20 and, provided that the multi-part lens arrangement 1 as a whole consists of these two optical elements 10, 20, which To complete light control in the lens arrangement 1, so that the light can be emitted at a light emission region 24 of the second optical element 20 in the main emission direction H.
    [0041] The two optical elements 10, 20 are therefore stacked on top of one another to form a closed light control. However, it is also conceivable for the multi-part lens arrangement 1 or the stack to be composed of more than two different optical elements 10, 20, which can be combined in any desired manner depending on the application, as is shown schematically in FIG. 3 by way of example. In this case, the lens arrangement 1 has one or more further elongated optical elements 30, 40, each of which has a longitudinal axis L4 and is connected downstream of the first optical element 10 in the light directing direction and is provided separately from the first optical element 10. These further optical elements 30, 40 interact optically with the first and preferably the second and further (preferably upstream) optical elements 10, 20, 30 for the purpose of light control in order to achieve a desired closed light control. Here, the light guidance through the lens arrangement 1 does not have to lead through each optical element 10, 20, 30, 40 for each light beam. It is also conceivable, for example, that the light is directed in the individual optical elements 10, 20, 30, 40 in such a way that, for example, part of the light from the first optical element 10 into the second optical element 20 and another part of the light from the is directed into the third optical element 30 directly or via the second optical element 20 and / or a part of the light is emitted by the second optical element in the main emission direction H and another part is directed into the third optical element 30 from which the light is also emitted in the main emission direction H in order to achieve, for example, homogeneous light emission or defined characteristic light emission.
    The longitudinal axes L2, L3, L4 of the optical elements 10, 20, 30, 40, preferably at least the longitudinal axes L2, L3 of the first and second optical elements 10, 20, are preferably aligned parallel to one another. For the sake of clarity, the longitudinal axes L1, L2, L3 are shown summarized in FIG. 1. In Figure 8, the longitudinal axes L1, L2, L3, L4 are shown as an example in plan view. For example, in the case in which at least the longitudinal axes L2 and L3 of the first two optical elements 10, 20 are aligned parallel to one another, as shown in FIG. 1, the first optical element 10 can be securely received in a recess 21 of the second optical element 20 become. The same applies to all optical elements 10, 20, 30, 40 in interaction with other neighboring optical elements 10, 20, 30, 40.
    It is alternatively or additionally also conceivable that at least one of the longitudinal axes L2, L3, L4, preferably one of the longitudinal axes L4 of the further optical elements 30, 40, in a plane perpendicular to the main emission direction H of the lens arrangement 1 (i.e. in the Main extension planes of the lens arrangement 1) are oriented obliquely or transversely by a predetermined angle to the one or the other longitudinal axes L2, L3, L1. In this case, for example, the optical elements can be arranged transversely to one another; with reference to
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    FIG. 3, for example, the third optical element 30 can be provided transversely to the second optical element 20 if this is desired for a defined light emission due to the application.
    The optical elements 10, 20, 30, 40, preferably light entry areas 23, 33, 43 of the second and further optical elements 20, 30, 40, are preferably at least partially in (flat) contact with other optical elements, preferably the Light exit or light emission areas 14, 24, 34 of at least one of the optical elements 10, 20, 30 upstream in the direction of light directing, in order to easily position and fix the optical elements 10, 20, 30, 40 to one another, and preferably the light control of the first and correspondingly in To continue the light directing direction of further upstream optical elements 10, 20, 30 in the desired manner.
    In order to connect the optical elements 10, 20, 30, 40 in a defined manner and to position them relative to one another, the optical elements 10, 20, 30, 40 preferably have mechanically corresponding connecting elements (not shown). For example, these connecting elements can be designed in the form of rails or guides, so that the individual optical elements can be inserted into one another and aligned with one another; consequently, optical neighboring elements can be positioned in a coordinated manner. For precise positioning of the optical elements relative to one another, latching elements can be provided, for example. As an alternative or in addition, the connecting elements can also have pins, pins and the like and in each case corresponding receiving elements. The optical elements 10, 20, 30, 40 are preferably detachably connected to one another in a non-destructive manner.
    At least one of the optical elements 10, 20, 30, 40, preferably at least the second and / or the further optical elements 20, 30, 40, preferably have one in the longitudinal direction of the optical element 10, 20, 30, 40 the entire length of the recess 21 for receiving a further optical element 10, 20, 30, 40, preferably the first optical element 10 or another optical element 20, 30 upstream in the direction of light control.
    Preferably, at least one, particularly preferably the last optical element 10, 20, 30, 40 in the direction of light control, a protective element 25 preferably integrally formed with the optical element 10, 20, 30, 40 for protecting the illuminants used or one of the lens arrangement 1 having lamp L (see Figure 8) against dirt and touch. As can be seen, for example, from FIG. 6, this protective element 25 can represent, for example, a wall element which extends from the rear of the corresponding (last) optical element 20 counter to the main emission direction H and which can be provided, for example, with latching elements (for example latching lugs) 26 which, when brought together of the lens arrangement 1, for example, with a part or plate element of the first optical element 10 or the circuit board 3 having the illuminants 2 or also with a part (for example housing 4; see FIG. 8) of the lamp L. Thus, by means of the latching elements 26 and corresponding latching elements of another optical element, the circuit board 3 or another part of the lamp L, the lens arrangement 1 or the lamp L or parts thereof can be mechanically connected or held together and preferably also aligned with one another.
    In the case of an embodiment of a first optical element 10 as a plate, this preferably has discrete lenses or lens elements as light entry regions 11, as can be seen in FIG. 6, if a plate-like first optical element 10 is assumed instead of the plate 3 shown and the board 3 would then be provided on the back. Such a protective element 25 can then, as described above and shown in FIG. 6, simultaneously serve as a connecting element of the type described above, the exact positioning of the optical elements 10, 20 relative to one another or to the circuit board 3 in the first optical element 10 or the board 3, for example, receptacles for the locking lugs 26 are provided. As previously mentioned, the optical elements 10, 20,
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    30, 40 can be formed with protective elements 25 as desired, in order to provide appropriate protection against dirt and touching and, if appropriate, to serve as a connecting element with other optical elements 10, 20, 30, 40 or parts of the lamp L.
    Particularly preferably, the protective element extends over the entire length of the corresponding optical element in order to preferably form a (laterally) closed and thus outwardly delimited and protected lens arrangement 1 or lamp L.
    Depending on the application specification, the optical elements 10, 20, 30, 40 can optionally be used as linear lens elements, in particular extrusion lenses, lens arrays, in particular plates with discrete lenses or lens elements, grating or raster elements, MPO or KOP plates, diffractive optics and / or free-form optics, wherein different lens shapes of the optical elements 10, 20, 30, 40 can also be combined with one another as desired. Since the respective optical elements 10, 20, 30, 40 have different tasks, they can therefore also be provided in a quantity ratio that deviates from a 1: 1 relationship.
    With such a lens arrangement 1, it is possible for the large and, above all, long stacks to be designed in such a way that the thermal influences on the optics as a whole are minimized, which in turn reduces the risk of collision between the lamps 2 and the optics and stabilizes the Radiation characteristic for certain temperature limits leads. Furthermore, it is possible through the different stages 10, 20, 30, 40 of the lens arrangement 1 or optics to realize complex optical geometries which, for. B. can not be provided or manufactured with single-stage optics, otherwise they may not be demouldable. In this regard, reference is made, for example, to FIG. 5, which shows a single-stage split lens on the left-hand side and a two-stage split lens 1 according to the invention on the right-hand side, the radiation characteristics already showing how the advantageous two-part configuration is with regard to homogeneous light scattering positively noticeable. In addition, the configuration of the lens arrangement 1 shown on the right as a one-piece component would not be possible because it cannot be (easily) removed from the mold.
    FIG. 8 shows, for example, another embodiment of the elongated multi-part lens arrangement 1 according to the invention. In the embodiment shown in FIG. 8, a three-stage lens arrangement 1 is shown which, in addition to the first optical element 10 and the second optical element 20, is a further, third optical element 30 has. A corresponding illuminant 2 is also shown in FIG. 8, which is preferably applied to an (elongated) circuit board 3. As shown, for example, in FIG. 8, the first optical element (s) 10 can be provided detachably or non-detachably directly on the circuit board 3 or the housing 4. It is therefore also conceivable that both the lens arrangement 1 and the illuminants 2 or the circuit board 3 are accommodated, for example, via a housing 4 of the lamp L and positioned relative to one another.
    The lamp L according to the invention therefore has a multiplicity of lamps 2 and an elongated multi-part or multi-stage lens arrangement 1 according to the invention, each of the light entry areas 11 - in particular the light entry areas of the first optical element 10 - having no, one or more lamps 2 optically defined assigned. If a separate housing 4 of the lamp L is further provided, the lens arrangement 1 as a whole, preferably the last optical element (s) in the direction of light control, can form a cover for the lamp L or the housing 4, as shown in FIG this is shown in Figure 8. However, it is also conceivable for the housing 4 which receives the lens arrangement 1 and the illuminants 2 to be closed by means of a separate cover which preferably has light-influencing (for example light-scattering) properties.
    The protective element 25 shown previously in FIG. 6, alone or also in connection with the housing 4 or the circuit board 3, can provide the spatially closed space I for protecting the lamp L or lamp 2. To this end, a possibly provided latching element 26 of the protective element 25 acts preferably with a corresponding latching element of the lens arrangement 1 or the lamp L or a part thereof for mecha8 / 17
    AT15 726U1 2018-05-15 Austrian patent office for connecting or holding the lens arrangement 1 or the lamp L together.
    At least the last optical element 20, 30, 40 in the direction of light control, viewed in the direction of the longitudinal axis L3, L4, can be essentially as long as the housing 4 or the lamp L or the circuit board 3 having the lamps. For this purpose, at least the last optical stage 20, 30, 40 of the multi-part stacked lens arrangement 1 can be designed, for example, as an extrusion lens, as a result of which a closed and protected optical system can be provided very easily.
    In particular, in the case in which at least one of the optical elements or stages 10, 20, 30, 40 is applied directly to the circuit board 3, a type of protection against accidental contact of the electrical components (for example lamps or LEDs 2) be provided. This can alternatively or additionally be provided by the protective elements 25 described above or the housing 4 of the light L itself. The subsequent or subsequent stages can then serve as a partial or total covering of the lamp L.
    [0057] In particular, light-emitting diodes (LED) are used as the illuminant 2, the invention not being limited to such illuminants.
    The features of the exemplary embodiments described above can be combined with one another as desired within the scope of the invention. For example, the invention is not limited to the number or positioning or configuration of the individual optical elements 10, 20, 30, 40, as long as they are provided separately and interact optically with one another in such a way that they control closed light control of at least part of the light emitted by the illuminant 2 Enable light. Also, the light directed through the optical elements 10, 20, 30, 40 does not have to pass through all the optical elements 10, 20, 30, 40, but can at least partly only one or a part of the optical elements 10, 20, 30, depending on the application. 40, as shown by way of example in FIG. 5.
    Furthermore, neither the optical elements 10, 20, 30, 40 nor the housing 4 or other components are limited to certain materials. With regard to the optical elements, it should be pointed out that these can preferably be made from PMMA and / or PC, optical elements 10, 20, 30, 40 made of any materials being able to be combined with one another as desired. Combinations with other known optical materials, such as different types of glass, are therefore also conceivable in this context.
    With regard to the configuration of the optical elements or optical stages 10, 20, 30, 40, it should also be noted that they can have any (preferably known) shape, which can be combined with one another in a different manner depending on the application.
    As can also be seen, for example, in FIG. 5, in addition to the first optical element 10, the further optical elements 20, 30, 40 can also have a recess or a direct light entry region 23, 33, 43 for receiving a lamp 2 or at least for Introduce the light emitted by the illuminant 2 into the lens arrangement 1.
    As can also be seen in FIG. 5, in addition to the first optical element 10, each further optical element 20, 30, 40 can also have comparable light entry regions 11, 23, 33, 43 with comparable features, to which the illuminants 2 are also directly assigned can and can be introduced directly into the lens arrangement 1 via the light of the illuminant 2.
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    权利要求:
    Claims (17)
    [1]
    Expectations
    1. Elongated multi-part lens arrangement (1) for lights (L) for influencing a light emitted by a lamp (2), comprising a first elongated optical element (10) with a first longitudinal axis (L2) and at least one of the first optical element (10 ) Second elongated optical element (20) connected downstream in the direction of light control and provided separately from the first optical element (10), with a second longitudinal axis (L3), at least the first optical element (10) defining at least one along the first longitudinal axis (L2) Light entry area (11) for introducing light from the illuminant (2) into the lens arrangement (1), and wherein the second optical element (20) for light control of the lens arrangement (1) optically cooperates with the first optical element (10) to the Continuing light control of the first optical element (10), the light entry region (11, 23, 33, 43) serving as a recess for receiving the light means (2), and wherein the first optical element (10) has a grid or grating forming the light entry areas (11) or the light entry areas (11) are arranged in the form of a grid or grating, and at least one for each light entry area (11) Illuminant (2) can be assigned.
    [2]
    2. Elongated multi-part lens arrangement (1) according to claim 1, further comprising one or more further elongated optical elements (30,) downstream of at least the first optical element (10) in the light-guiding direction and provided separately from the first and second optical elements (10, 20) 40) each with a longitudinal axis (L4), the further optical elements (30, 40) for light control optically interacting with the first and preferably the second and other further optical element (10, 20, 30, 40) in order to achieve a desired closed one To achieve light control of the lens arrangement (1).
    [3]
    3. Elongated multi-part lens arrangement (1) according to claim 1 or 2, wherein the longitudinal axes (L2, L3, L4) of the optical elements (10, 20, 30, 40), preferably at least the first and second optical elements (10, 20) , are aligned parallel to one another, or at least one of the longitudinal axes (L2, L3, L4), preferably one of the longitudinal axes (L4) of the further optical elements (30, 40), in a plane perpendicular to a main emission direction of the lens arrangement (1), is oriented obliquely or transversely by a predetermined angle to the other longitudinal axis (s) (L2, L3, L4).
    [4]
    4. Elongated multi-part lens arrangement (1) according to one of the preceding claims, wherein the light entry regions (11) are designed as optical light influencing elements, in particular as lenses, or have light influencing elements.
    [5]
    5. Elongated multi-part lens arrangement (1) according to one of the preceding claims, wherein the optical elements (10, 20, 30, 40), preferably at least the light entry areas (23, 33, 43) of the second and the further optical elements (20, 30 , 40), at least partially in preferably flat contact with other optical elements (10, 20, 30, 40), preferably the light exit areas (14, 24, 34, 44) of at least one of the optical elements (10, 20, 30 , 40).
    [6]
    6. Elongated multi-part lens arrangement (1) according to one of the preceding claims, wherein the optical elements (10, 20, 30, 40) mechanically corresponding connecting elements for defined connection and positioning of the optical elements (10, 20, 30, 40) to each other , wherein the connecting elements preferably have rails, guides, pins, pins and corresponding receiving elements.
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    [7]
    7. Elongated multi-part lens arrangement (1) according to one of the preceding claims, wherein at least one of the optical elements (10, 20, 30, 40), preferably at least the second optical element (20), one in the longitudinal direction of the optical element (10, 20, 30, 40) preferably has a recess (21) extending over its entire length for receiving a further optical element (10, 20, 30, 40), preferably the first optical element (10).
    [8]
    8. Elongated multi-part lens arrangement (1) according to one of the preceding claims, wherein at least one, preferably the last in the light directing optical element (10, 20, 30, 40) preferably with the optical element (10, 20, 30, 40) integral formed protective element (25) for protecting the illuminant (2) or a lamp (L) having the lens arrangement (1), the protective element (25) preferably locking elements (26) for mechanically connecting or holding the lens arrangement (1) or one Has lens arrangement (1) having lamp (L).
    [9]
    9. Elongated multi-part lens arrangement (1) according to one of the preceding claims, wherein the optical elements (10, 20, 30, 40) as linear lens elements, in particular extrusion lenses, lens arrays, in particular plates with discrete lenses or lens elements, grating or raster elements, MPO or KOP plates, diffractive optics, free-form optics and / or are designed as diffusely scattering plates, the respective optical elements (10, 20, 30, 40) preferably having a complex geometry when viewed in cross section.
    [10]
    10. light (L), comprising a plurality of lamps (2) and an elongated multi-part lens arrangement (1) according to any one of the preceding claims, wherein each of the light entry areas (11, 23, 33, 43) none, one or more lamps (2 ) are optically assigned.
    [11]
    11. Luminaire (L) according to claim 10, further comprising a housing (4) for receiving the illuminants (2) and the lens arrangement (1), the lens arrangement (1), preferably the last (s) elongate in the direction of light control ( n) optical element (s) (20, 30, 40), form a cover for the lamp (L) or the housing (4).
    [12]
    12. Luminaire (L) according to claim 10 or 11, wherein the illuminants (2) are applied to a preferably elongated circuit board (3), wherein preferably the or the first (n) optical ^) element (s) (10, 20, 30, 40) are provided detachably or non-detachably directly on the circuit board (3) or the housing (4).
    [13]
    13. Luminaire (L) according to one of claims 10 to 12, wherein the protective element (25) alone or in conjunction with the housing (4) or the circuit board (3) a spatially closed space (I) to protect the lamp ( L) or illuminant (2), the latching element (25) preferably having a corresponding latching element (26) of the lens arrangement (1) or the lamp (L) for mechanically connecting or holding together the lens arrangement (1) or the lamp (L ) interacts.
    [14]
    14. Luminaire (L) according to one of claims 10 to 13, wherein at least one, preferably the last optical element (10, 20, 30, 40) in the direction of light control viewed in the direction of the longitudinal axis (L1) of the lens arrangement (1) essentially the same long as the housing (4) or the illuminant (2) or the circuit board (3) having the illuminant (2).
    [15]
    15. Luminaire (L) according to one of claims 10 to 14, wherein the lighting means (2) comprise light emitting diodes.
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014202461.7A|DE102014202461A1|2014-02-11|2014-02-11|Elongated multi-part lens arrangement and luminaire with such a lens arrangement|
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