• 专利附录
  • 专利说明
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    • 专利摘要:
    The present invention relates to an improved embedded flexible lighting strip, wherein the casing comprises reinforcing wall parts that have a different transmission than the casing cover parts that cover the LEDs, and thus not only protect the sensitive elements but can also direct or block the light rays . The invention further comprises a flexible fabric and net suitable for sports with the lighting strips incorporated therein to enable the fabric or net to serve as an improvised display for displaying information, and the use of the light strips in various configurations as such a display. In addition, the invention comprises a method for making the lighting strips.
    公开号:BE1022885B1
    申请号:E2015/5379
    申请日:2015-06-22
    公开日:2016-10-05
    发明作者:Frederic Frank Opsomer
    申请人:Projects Bvba；
    IPC主号:
    专利说明:

    EMBEDDED LIGHTING STRIP
    TECHNICAL DOMAIN
    The invention generally relates to the concept of lighting strips, and more specifically to one or more integral lighting strips with LEDs, wherein the LEDs and any control elements are optimally protected. The invention furthermore relates to the integration of a plurality of such lighting strips in a fabric and to a net, preferably suitable for practicing a sport such as, for example, volleyball, football, tennis and the like. In addition, the invention also relates to a method for producing such lighting strips and displaying information on one or more such lighting strips. Finally, its use is also described for displaying information, preferably on a network suitable for sport.
    BACKGROUND ART
    A problem with the known lighting strips is that in their current form they consist of a substrate with sensitive electrical circuits including a plurality of LEDs or other light-emitting elements in electrical connection with conductors on a substrate. The circuits and possibly the entire substrate are encapsulated in a protective, (partly) transparent cover layer and connected to an energy supply. In many applications, these are statically attached and the flexibility is mainly to be able to attach the lighting strips to a previously unknown structure. For mobile applications, the risk of shocks, pressures and forces on the lighting strips is much greater and higher protection must be provided than currently exists, without the lighting strip losing the flexibility that still remains crucial.
    In another aspect, the lighting strip must also provide light in a limited space. In certain situations, it is not desirable that the lighting strip radiates in all directions or in too large a field. This can be partly solved by changing certain aspects of the light emitting elements, for example the use of spot LEDs with a limited beam angle, but in this case there is still undesired light that is visible outside this beam angle, so-called 'ghosting' or ' spill '. A solution must also be found for this, again without compromising the flexibility of the lighting strip.
    In a first embodiment according to the European patent EP 0,760,448, a flexible lighting strip is described where further protection can be provided by incorporating a partially open housing. However, this housing is rigid, in a possible embodiment made of aluminum.
    A type of LED lighting strips is described in the US patent US 5,130,909. This describes an emergency lighting strip with a plurality of light-emitting elements with certain lower limit for light intensity and an upper limit of the opening of the room angle under which the light-emitting elements radiate. However, no adequate protection is mentioned here.
    In the US patent US 4,597,033, the lighting strip does have a jacket and the light-emitting elements are, in one embodiment, these LEDs are arranged such that they all ensure the same directionality of the light. In addition, it is possible to control the luminous elements. Here, flexible lighting strips are not mentioned, since the lighting strips described herein are suitable for being fixed to fixed structures such as round door posts and the like. Furthermore, the presence of a jacket is insufficient to guarantee the necessary protection in mobile applications where shocks, pressure and stress can occur on the lighting strip or can be exerted.
    The expired US patent US 4,761,720 describes a flexible lighting strip with LEDs, electrically conductive wiring and connectors, the aforementioned elements being encapsulated in an at least partially light-transmitting sheath. In a further embodiment it is made clear that the underside of the lighting strip can possibly be opaque or less transparent. Again, no mention is made of a sufficiently sturdy mantle, since the lighting strips in the applications mentioned in the patent are used purely for decorative purposes in situations in which large forces exerted on the lighting strip do not constitute a danger, such as lighting in a Christmas tree. Moreover, in these situations there is little reason to want a certain directionality of the light emitted and the beam angle is not further discussed. However, this beam angle is difficult to control in situations where the lighting strip must have a high resistance to shocks, pressure and forces, and yet must be flexible, since increasing the strength of the lighting strip and avoiding ghosting often lead to measures which will reduce flexibility.
    In the PCT application WO 2007/041805 a lighting strip is described in which the electrical conductors for feeding the light-emitting elements lie in a recess running along the length of the lighting strip in a longitudinally extending inner body, above which a light-transmissive cover layer is subsequently placed. lies. In addition, it is also stated that the light-emitting elements can partly be placed in the inner body in order to guarantee more protection. However, this limits the radiation angle of the light-emitting elements little and still leaves the light-emitting elements only partially protected by the cover layer, whereby damage is still possible. In addition, it is no longer a question of flexible lighting strips since flexibility is a difficult to combine property with the extra protections proposed in this application.
    The other aspects of the invention are also being addressed in the state of the art. For the sports net provided with LEDs, for example, there is the Chinese patent application CN 102895770, in which lighting strips are interwoven with LEDs in the net and in which the net comprises nylon conductive wires for supplying power to the lighting strips. The purpose of this is pure illumination of the board for dark situations, such as at night and there is no mention of the necessary protection for the elements since these are particularly rough versions where few fragile elements are present, but which also makes it impossible control the lighting strips in order to function, for example, in a time or place-bound way and in this way to display information.
    Because during sports competitions the screens displaying information are usually outside the field of view of the spectator, the invention provides a fabric or net suitable for displaying information via light (such as advertising). In many sports, the net plays a central role and is often the center of the action, for example with a goal net in football or a volleyball net. These nets are therefore usually at the center of the spectator's field of vision and are visible from all directions. For that reason it is therefore particularly interesting to use the net as a kind of screen for displaying information, such as advertisements, error messages, score, time indications, replacements, game statistics, trivia and others. However, it is important that the net retains its properties such as flexibility, lightness and firmness and that the new elements are strong enough to handle shocks (such as a tennis storage that ends up in the net at 260 km / h).
    It is an object of the present invention to find a solution to at least some of the aforementioned problems.
    There is a need for an improved flexible lighting strip for focused beaming under situations where the lighting strips can experience great forces, shocks and pressure, such as in sports situations where a ball can hit the lighting strip at great speed. Further applications to this are also described in this document, as well as the method for manufacturing and using such lighting strips.
    It is an object of the invention to solve this by, without reducing the flexibility of the lighting strips, by better embedding the light-emitting elements in order to both be able to radiate in a more targeted manner and to protect them better against collisions and shocks.
    SUMMARY OF THE INVENTION
    The invention relates to an improved flexible lighting strip, wherein the sensitive elements are better protected against shocks, pressure and forces. The lighting strip comprises a flexible carrier with a front side and a rear side, wherein the carrier extends along a length direction. The lighting strip, and the carrier as well, is preferably such that the length of the lighting strip is substantially greater than the width and the thickness of the lighting strip, and wherein further preferably the width is greater than the thickness of the lighting strip. The carrier is suitable to serve as a printed circuit board, without losing flexibility. For this, so-called FPCs or 'flexible printed circuits' can be used, also known as flexible printed circuit boards. The support comprises electrical conductors and one or more LEDs attached to the front of the support in electrical connection with the support and the conductors of the support. The lighting strip also includes a flexible jacket that covers the LEDs. In addition, the jacket can preferably also cover part or all of the carrier. The lighting strip is characterized by the casing comprising one or more wall parts and one or more cover parts. In this case wall parts extend on the carrier along the longitudinal direction of the carrier and the LEDs lie between the wall parts. The LEDs may or may not be separated from each other by the wall parts. The cover parts cover the LEDs, and preferably cover part or all of the support. The transmission of the cover parts is different from the transmission of the wall parts.
    In a preferred embodiment, the lighting strip comprises one or more connectors in electrical connection with the carrier, suitable for receiving control signals and / or energy and for transmitting them to the carrier. The carrier can further be provided with electronic components in electrical connection with the carrier, such as control elements for controlling the LEDs, wherein the control is preferably done separately per LED. The electronic components are covered by the jacket, and preferably lie, like the LEDs, between the wall parts. In addition, the transmission of the wall parts can be lower than the transmission of the cover parts, preferably such that the cover parts have a transmission between 50% and 100%, such as for instance 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, and that the wall parts have a transmission comprised between 0% and 50%, such as for example 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%. The wall parts may comprise silicone, for example a thixotropic RTV (room temperature vulcanization) silicone. The cover parts can also comprise silicone or a mixture of several types of silicone. The wall parts can be arranged on the carrier such that they are higher than the LEDs, such that the LEDs are completely clamped in the convex space figure by the wall parts, in this way on the one hand not allowing lateral 'ghosting' and on the other hand to provide optimum protection. The wall parts comprise a sturdy and flexible material and in this way provide an extra protective layer.
    The lighting strip may in addition also comprise a reinforcing material on the rear of the carrier, the reinforcing material being approximately as wide and longitudinal as the carrier, to completely cover this rear. In a preferred embodiment, the reinforcement material is longer and possibly wider than the carrier, such that the rear of the carrier is completely covered by the reinforcement material. A fastening element can be provided at one or both ends of the lighting strip, suitable for coupling the lighting strip to another element. In this way, a substantial part of the mechanical forces can be derived to the other element, which is, for example, stretchable. The fixing element is preferably arranged on the reinforcement material.
    In a second aspect the invention relates to a double-sided flexible lighting strip in which LEDs are provided on both the front and the rear of the lighting strip. In a first embodiment, it comprises at least two flexible carriers, the carriers comprising one or more LEDs, as already described above. Optionally, the lighting strip comprises a reinforcing material to which the rear sides of the carriers are attached, and one or more connectors as already described above. That reinforcing material can preferably be approximately as long and wide as the rear sides of the carriers. Furthermore, the lighting strip comprises one or more flexible jackets which cover the LEDs and consist of one or more wall parts and one or more cover parts, wherein the wall parts extend on the front of the carriers along the longitudinal direction of the carrier in such a way that the LEDs lie between the wall parts, and wherein the cover parts cover the LEDs and optionally the front of the carriers. The transmission of the wall parts and the cover parts is different here. In a second embodiment, the lighting strip comprises a flexible carrier with front and rear, which extends along a length direction, wherein the carrier is suitable for serving as a printed circuit board. The carrier comprises one or more LEDs at the front and at the rear, wherein the LEDs are attached to the carrier in electrical connection respectively at the front and at the rear. The carrier further comprises one or more jackets covering the front and rear LEDs of the carrier, and optionally one or more connectors in electrical connection with the carrier, the connectors being able to receive and transmit control signals and / or energy to the carrier. The jackets comprise one or more cover parts and wall parts at the front and at the rear of the carrier, wherein the LEDs lie between the wall parts at the front and at the rear of the carrier and wherein the cover parts the LEDs and optionally the front and / or cover the rear of the carrier. The transmission of the wall parts and the cover parts is different here. Furthermore, one or more of the aforementioned extensions can also be applied to this second aspect of the invention.
    In a third aspect, the invention relates to a flexible fabric comprising a plurality of lighting strips as described in this document, wherein it is in a first and
    In a fourth aspect, the invention relates to a method for manufacturing a flexible lighting strip.
    In a fifth aspect the invention relates to the use of the lighting systems described in this document in all forms for displaying information such as images and patterns, for example on a net suitable for practicing sports, such as a volleyball net or a soccer net.
    DESCRIPTION OF THE FIGURES FIG. 1A shows a top view of an embodiment of a lighting strip. FIG. 1B shows a top view of an embodiment of a lighting strip with a reinforcement material. FIG. 1C shows a cross-section of an embodiment of a lighting strip in the plane perpendicular to the longitudinal direction of the lighting strip. FIG. 1D shows a cross-section of an embodiment of a lighting strip in the plane perpendicular to the longitudinal direction of the strip of reinforcement material. FIG. 1E shows a top view of an embodiment of a lighting strip with a connector. FIG. 1F shows a top view of an embodiment of a lighting strip with a connector with a reinforcement material. FIG. 1G shows a cross-section through the center of an embodiment of a lighting strip in the plane along the longitudinal direction of the lighting strip, perpendicular to the support. FIG. 1H shows a cross-section through the center of an embodiment of a lighting strip with a reinforcing material, in the plane along the longitudinal direction of the lighting strip, perpendicular to the support. FIG. 2 shows a top view of an alternative embodiment of a lighting strip. FIG. 3A shows a cross-section of an embodiment of a lighting strip with front and rear LEDs, in the plane perpendicular to the longitudinal direction of the lighting strip. FIG. 3B shows a cross-section through the middle of an embodiment of a lighting strip with front and rear LEDs, in the plane along the longitudinal direction of the lighting strip, perpendicular to the support. FIG. 4A shows a cross-section of an embodiment of a lighting strip with two supports and a reinforcing material, in the plane perpendicular to the longitudinal direction of the lighting strip. FIG. 4B shows a cross-section through the middle of an embodiment of a lighting strip with two supports and a reinforcing material, in the plane along the longitudinal direction of the lighting strip, perpendicular to the support. FIG. 5A shows a volleyball net with several lighting strips stretched along the wiring of the volleyball net. FIG. 5B shows a volleyball net with multiple lighting strips and cabling. FIG. 5C shows a volleyball net with clamping system for hanging the lighting strips. FIG. 5D shows a volleyball net with suspension system for lighting strips. FIG. 5E shows an enlargement of the suspension with a pulley system of a volleyball net on a support post. FIG. 6 shows a soccer net with several lighting strips stretched along the wiring of the soccer net.
    DETAILED DESCRIPTION
    The invention relates to a flexible lighting system in various designs, with the innovative element reinforced edges which also avoids so-called 'light spill' or 'ghosting'. Combined with the flexibility, this leads to a device that is not yet found in the state of the art.
    Unless defined otherwise, all terms used in the description of the invention, including technical and scientific terms, have the meaning as generally understood by those skilled in the art of the invention. For a better assessment of the description of the invention, the following terms are explicitly explained. "A", "de" and "het" in this document refer to both the singular and the plural unless the context clearly assumes otherwise. For example, "a segment" means one or more than one segment.
    When "about" or "round" is used in this document for a measurable quantity, a parameter, a duration or moment, and the like, variations are meant of +/- 20% or less, preferably +/- 10% or less, more preferably +/- 5% or less, even more preferably +/- 1% or less, and even more preferably +/- 0.1% or less than and of the quoted value, insofar as such variations of are applicable in the described invention. However, it must be understood here that the value of the quantity at which the term "about" or "round" is used is itself specifically disclosed.
    The terms "include", "comprising", "consist of", "consisting of", "provided with", "contain", "containing", "include", "including", "contents", "contents" are synonyms and are inclusive or open terms indicating the presence of what follows, and which do not preclude or preclude the presence of other components, features, elements, members, steps, known from or described in the prior art.
    The term "LEDs" or "light-emitting diode" refers to light-emitting electronic semiconductor components. More specifically, the term "LED" can refer to organic LEDs or O-LEDs, quantum dot LEDs, RGBA LEDs (red-green-blue-amber), LECs (light-emitting capacitors) and others. The term preferably refers to a so-called RGB LED, which actually comprises 3 different colored (red-green-blue) LEDs and in this way is able to display all possible colors. In addition, the LEDs can also include built-in control elements so that more space can be used on the lighting strips. By extension, other energy-efficient light emitting elements can also be used in the present invention to replace or supplement LEDs, preferably developing little heat, as is the case with LEDs. By extension, OLETs (Organic Light Emitting Transistor) and OFETs (Organic Field-Effect Transistor) are also included under this general term.
    The term "transmission" refers to the light transmittance of a material as a ratio of the transmitted light flux to the incident light flux on a material, and can be expressed as a number between 0 and 1 in percent between 0 and 100. The transmission can also be wavelength bound, although the applications described in this document often take place in the wavelengths of the visible light, other ranges can also be used (infrared, ultraviolet, ...).
    The term "ghosting" or "spill" refers to the unwanted light rays around the central, desired light beam. This is present in just about all light sources, although the extent to which this occurs varies from situation to situation. This is very limited with lasers, while this is more common with LEDs.
    The term "flexible printed circuit", "FPC", "flex circuits" refers to flexible printed circuit boards. They often consist of a thin insulating layer with conductors placed in a certain circuit. Furthermore, these are often provided with a thin coating to protect the conductors. This technology comes in many forms and the flexible circuit boards can be single or double-sided, or can consist of multiple layers.
    The term "multiplexing" or "muxing" refers to the process in which multiple signals, analog or digital, are combined into one signal. In this way, a single medium, for example an electrical conductor, can be shared and thus used more efficiently. Moreover, it ensures that fewer channels, in this example conductors, are required. Some subdivisions in multiplexing differ in terms of how the different signals are combined into one signal. For example, there is spatial multiplexing, frequency division multiplexing, time division multiplexing, polarization division multiplexing, wavelength division multiplexing, and orbital angular momentary division multiplexing.
    The term "thixotropic" refers to the property of a material in which the viscosity decreases over time with a constant shear stress. After releasing the shear stress, the initial viscosity returns.
    The term "RTV silicone" or "Room Temperature Vulcanization silicone" refers to a silicone rubber. These may be, for example, from two components, a base silicone and a curing agent or vulcanization agent, or from a single component, a base silicone containing a catalyst to initiate the curing process.
    The citation of numerical intervals by the end points includes all integers, fractions and / or real numbers between the end points, including these end points.
    In a first aspect the invention relates to a flexible lighting strip. This includes a flexible carrier and a flexible jacket. The carrier herein comprises a front side and a rear side and the carrier extends along a length direction. The support is suitable for serving as a printed circuit board, and preferably comprises at least one FPC. The carrier further comprises one or more LEDs, preferably RGB LEDs, wherein the LEDs are attached to the front of the carrier in electrical connection with the carrier. The flexible jacket covers the LEDs and comprises one or more wall parts and one or more cover parts. The wall parts extend on the carrier in the longitudinal direction of the carrier, such that the LEDs lie between the wall parts. The cover parts cover the LEDs, and preferably also the partial or complete front side of the carrier where it is not yet covered by the wall parts. With extension, the rear parts of the carrier can also be covered by the cover parts. The transmission of the wall parts is different from the transmission of the cover parts. This allows the light to only radiate in desired directions. In addition, the wall parts provide increased strength and protection of the fragile parts such as the LEDs and any other electronic components. The pieces of the carrier on which there are no LEDs or control elements will absorb the vast majority of the deformation if a force is applied to the lighting strip since the LEDs and control elements occupy a small area of the support. Preferably, there are no sharp edges on the lighting strip.
    In a preferred embodiment, the flexible lighting strip comprises a flexible reinforcing material, for example a polyester ribbon, attached to the underside of the carrier. Preferably, this reinforcing material is approximately as wide as the carrier and as long or longer, and this ribbon runs over the entire rear side of the carrier. The ribbon and the carrier can be attached to each other by, for example, transfer tape with adhesive on it. In a further preferred embodiment, the reinforcing material is longer than the carrier and a free zone is provided at the longitudinal ends of the lighting strip. A mounting element can be arranged on this, suitable for coupling to an external support, for example a stretchable element. In this way, part of the mechanical load on the lighting strip can be discharged to this external support. This fastening element can for instance be a male or female part of a snap fastener element.
    In a preferred embodiment, the lighting strip can withstand a minimum tensile force of 800 N, preferably 1000 N, more preferably 1500 N, even more preferably 2000 N and most preferably 2500 N, without the functioning of the lighting strip being compromised. This is the minimum force required to break the lighting strip or to cause constriction in a tensile test. By complying with this requirement, the lighting strip has sufficient mechanical resistance to be able to withstand the impact of an object, such as a ball or a human being, for example when exercising sport.
    In a preferred embodiment, the support is an FPC and comprises a thin insulating layer of a plastic substrate, comprising, for example, a polyimide, PEK (polyether ketone) or a polyester with conductive channels thereon. The FPC can also be made via screen printing of circuits of, for example, silver on, for example, a polyester substrate. In addition, the carriers can also consist of two layers of PET (polyethylene terephthalate) with very thin copper strips between them (about 0.07 mm thick).
    In a preferred embodiment, the flexible lighting strip has a width between 0.5 cm and 2.5 cm. The width is further preferably comprised between 0.8 and 2.0 cm. Still further preferably, the width is comprised between 1.0 cm and 1.5 cm. In the highest preference, the width is approximately 1.2 cm. For certain applications, it is of course possible to use lower widths than 0.5 cm, or higher widths than 2.5 cm.
    The LEDs can be white LEDs, colored LEDs, two-color LEDs or RGB LEDs, or RGBA LEDs, which stands for red, green, blue and amber LED. So-called O-LEDs are also eligible to be used. LEDs are highly resistant to shocks with impacts of balls, players or other elements on a lighting strip, and moreover, only slight heat development occurs, so that no cooling system needs to be added.
    In a preferred embodiment, the LEDs are distributed over the lighting strip at regular distances from each other. This distance depends on the application of the lighting strip. For example, when used with a sports net such as volleyball where spectators are close by, the LEDs must be placed closer to each other, as opposed to, for example, use at a soccer net, where supporters sit at greater distances and the LEDs can be spread further. The aim is to create an adjusted resolution so that spectators cannot distinguish the individual LEDs.
    In a preferred embodiment, the carrier comprises conductors for energy and / or signals, such as control signals. Preferably there are two conductors for energy and four conductors for signals.
    In a further embodiment, the lighting strip comprises one or more connectors which are electrically connected to the carrier and which are suitable for receiving control signals and / or energy and for transmitting them to the carrier, and thus indirectly to the LEDs. These control signals may be suitable for determining the intensity, time parameters such as duration of illumination, the color of the LEDs, preferably separately per LED. These control signals can come from an external device, such as a PC, tablet, smartphone or other, to which the connectors are connected, or from a device built into the lighting strip.
    In a further embodiment, the lighting strip comprises one or more control elements. These are in electrical connection with the carrier and are suitable for controlling the LEDs separately. The control elements are covered by the casing, the control elements preferably lying between the wall parts such as the LEDs. The LEDs are preferably controlled via multiplexing or muxing. Preferably by multiplexing based on time, more preferably time division multiplexing or time-division multiplexing (TDM) or statistical multiplexing (SM) or by multiplexing based on frequency or wavelength, more preferably frequency division multiplexing or frequency-division multiplexing (FDM) or wavelength division multiplexing or wavelength-division multiplexing (WDM), or by coding multiplexing, more preferably coding division multiplexing or code-division multiplexing (CDM). The advantage of multiplexing is that the number of conductors is divided by all LEDs, so that not every LED has to be provided with its own conductors, so that the number of conductors increases very quickly as there are more LEDs. With multiplexing, each LED is connected to 2 power conductors and connected to a minimum of 2 data conductors. In this way it is possible to control RGB LEDs consisting of 3 separate, differently colored LEDs (red-green-blue), per individual differently colored LED. Here, preferably 4 conductors are needed, one common anode and one cathode for each of the 3 differently colored LEDs.
    According to an embodiment, the cover parts have a higher transmission than the wall parts. Preferably, the transmission of the cover parts is comprised between 50% and 100%, such as, for example, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%. The transmission of the cover parts is preferably at least 75%. Even more preferably, it is at least 85%. Most preferably, it is at least 95%. The wall parts preferably comprise a transmission between 0% and 50%, such as for example 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%. Preferably it is lower than 25%. More preferably, it is lower than 15%. Most preferably, it is lower than 5%.
    In a further embodiment, the wall parts comprise a polymer, preferably a silicone. Preferably this is a thixotropic RTV silicone. In another embodiment, the wall parts may also comprise other thixotropic materials, such as certain types of rubber (polyurethane, epoxies, polymer rubbers). These materials can be either RTV materials or elevated temperature curing materials or are UV curing combinations or combinations of one or more of the aforementioned. This material makes it easy to install the wall parts by liquefying them smoothly, and when hardening ensures very limited shrinkage, no distortion and sufficient hardness. In addition, the material is resistant to high temperatures, acids, bases and weathering. The basic silicone of the RTV silicone preferably comprises one type of silicone. In the present embodiment, the wall parts are opaque.
    In a further embodiment, the cover parts comprise a polymer, preferably a silicone. This material allows smooth machinability, and it is an inexpensive material that can be obtained with a wide range of light transmission, which is in this way extremely suitable for this application. In another embodiment, the cover parts comprise polyurethane rubber, flexible epoxies, acrylates or hybrids of the aforementioned. In one embodiment, the cover parts comprise 1-component and / or 2-component materials. In a further embodiment, the cover parts are RTV materials, at elevated temperature-curing materials, or UV-curing materials, or combinations of one or more of the aforementioned materials. In the present embodiment, the cover parts are transparent.
    In a further embodiment, the wall parts are at least higher than the LEDs relative to the carrier. In this way the LEDs are better protected by the presence of the walls that are higher than the LEDs. In case of shocks, they will be able to absorb a large part of the blow and in this way prevent damage to the LEDs and any other sensitive and / or electronic components.
    In a possible embodiment, the lighting strip comprises a flexible reinforcing material on the rear of the carrier, preferably about as long and as wide as the rear of the carrier. This reinforcing material preferably comprises polyester and is ribbon-shaped. More preferably, this reinforcement material has a coating, for example polyurethane, on the side of the reinforcement material that is not adhered to the support. This ribbon offers a further advantage in the reinforcement of the lighting strip and will absorb a part of the mechanical forces and loads exerted on the lighting strip. By choosing a suitable material, this is possible without the flexibility of the lighting strip as a whole being reduced too much.
    In a further embodiment the lighting strip comprises a double-sided tape which is adhered to the rear side of the carrier or to a free side of the reinforcement material. Preferably, this double-sided tape is approximately as long and wide as the side to which the double-sided tape is adhered to ensure optimum attachment.
    In a further aspect the invention relates to a flexible lighting strip with a front side and a rear side and wherein lighting elements are present at the front side and at the rear side.
    In a first embodiment, the lighting strip comprises at least two flexible carriers with a front side and a rear side, wherein the carriers extend along a longitudinal direction, with the rear sides of the carriers facing each other, and wherein the carriers are suitable for functioning as a printed circuit board. The carriers are oriented with the rear sides facing each other, the rear sides being connected to each other, whether or not directly. The carriers each comprise one or more LEDs, the LEDs being attached to the front of the carrier in electrical connection with the carrier. Furthermore, the lighting strip comprises one or more flexible jackets that cover the LEDs. These jackets comprise one or more wall parts and one or more cover parts, wherein the wall parts and the cover parts have a different transmission. The wall parts extend on the carrier in the longitudinal direction of the carrier such that the LEDs lie between the wall parts. The cover parts cover the LEDs. Optionally, a reinforcing material may be present between the rear sides of the carriers. Optionally, one or more connectors may also be present as described earlier in this document.
    In a second embodiment, the lighting strip comprises one flexible carrier with a front side and a rear side, wherein the carrier extends along a length direction, and wherein the carrier is suitable to act as a printed circuit board. The carrier comprises one or more LEDs at the front, in electrical connection with the carrier, and one or more LEDs at the rear, in electrical connection with the carrier. The lighting strip further comprises one or more flexible jackets which cover the LEDs on the front and on the rear of the carrier. It is possible here for a first number of jackets to cover the LEDs on the front and a second number of jackets to cover the LEDs on the rear. The jackets comprise one or more wall parts and one or more cover parts, the transmission of the cover parts being different from the transmission of the wall parts. The wall parts extend at the front and / or at the rear of the carrier along the longitudinal direction of the carrier such that the LEDs at the front of the carrier lie between the wall parts and that the LEDs at the rear of the carrier between the wall parts lie. In addition, the cover parts cover the LEDs on the front and on the rear.
    Hereby the same previously described expansion possibilities as with the lighting strips of the first aspect of the invention, where an option, should be able to occur as an extension.
    In a second aspect the invention relates to a flexible fabric comprising a front side, rear side and a grid provided with a plurality of flexible lighting strips as described in this document. The lighting strips are hereby attached in a first direction and optionally also in a second direction, different from the first direction, to the grid, to the front and / or the back of the fabric. The lighting strips on the front and the rear can be controlled separately.
    In a third aspect the invention relates to a flexible net for a sport, wherein the net comprises meshes and the meshes have a diameter that is smaller than the diameter of a sporting element associated with the sport. The net further comprises a plurality of flexible lighting strips as described in this document which can be controlled separately. The lighting strips can serve as wiring of the network, as can be seen, for example, in FIG. 5A and further figures where the vertical wires of a volleyball net are lighting strips. The network preferably also comprises one or more connectors suitable for coupling to an external device, along which the lighting strips can be controlled and / or supplied with energy. Preferably, the lighting strips share one connector which can separately provide the lighting strips with control signals and / or energy.
    The net comprises flexible lighting strips that can provide time-varying information in the form of lighting, such as illuminated signs. This allows the net to be used as a screen in which the LEDs of the lighting strips act as a pixel and with all pixels together a moving or non-moving image can be built up.
    In a preferred embodiment, the net is suitable for use as sports equipment. To be suitable as sports equipment, the net must be able to absorb forces from, for example, balls and players that touch the net and the net must comply with safety regulations so that players do not get hurt when they come into contact with the net. All elements must be flexible, there must be no sharp edges. The net is preferably used in volleyball, netball, tennis, badminton, table tennis, handball, football, mini-football, indoor football, hockey, ice hockey or basketball, but also in athletics disciplines such as hammer hurling, shot put, javelin throw, discus throw where the net is more like a shielding function. The net can also be used to enclose a sports field. For this reason it is therefore advantageous for the lighting strips to be encased on at least one side with a casing in order to completely shield any hard and / or sharp elements such as LEDs or control elements from players and sports elements. In addition, by including reinforcing wall parts in the jacket, the risk of damage to both the elements of the lighting strip and to players or sports elements is reduced by encapsulating all sensitive and / or dangerous equipment even better.
    In a preferred embodiment, a net is provided with motion sensors that can detect a movement or contact of the net. The location of the movement is preferably also recorded. This information obtained can be used to automatically detect and display goals or net errors committed by players as well as by the corresponding movable sports element such as ball, plume or puck. The information can also be used to display on the net where the touch happened via the LEDs.
    In a preferred embodiment, the sports net is a volleyball net and has the dimensions assigned by the international volleyball federation (FIVB), preferably 1 m high and between 9.5 m and 10 m long. The meshes are 10 by 10 cm or 5 by 5 cm. The net is provided with a band at the bottom, top and on the sides, preferably made of canvas. The top band is 7 cm wide and the bottom and side bands are 5 cm wide.
    In a preferred embodiment, the sports net is a tennis net and has the dimensions assigned by the international tennis federation (ITF). The net is preferably at least 8.23 m and more preferably at least 10.97 m long, with a height of preferably 1.07 m. The net is provided with a white upper band between 5 cm and 6.35 cm. The diameter of the flexible carrier material is no more than 0.8 cm. The mesh diameter is small enough to hold a tennis ball.
    In a preferred embodiment, the sports net is a badminton net and has the dimensions assigned by the international badminton federation (BWF). the net is preferably 6.1 meters long with a height of 76 cm. The dimensions of the mesh are between 15 mm by 15 mm and 20 mm by 20 mm. At the top, the net is provided with a band with a width of 75 mm.
    In a preferred embodiment the net does not obstruct the view through the net, preferably at least 80% of the surface of the net is transparent, more preferably at least 90% of the net is transparent. To satisfy this, the aim is to keep the thickness of the flexible carrier material below 20 mm, preferably below 15 mm, more preferably below 12 mm and most preferably below 10 mm. If this is not possible, it is possible to work with a transparent cover and the part of flexible carrier material that is not transparent meets these maximum dimensions.
    In a fourth aspect, the invention relates to a method for manufacturing a flexible lighting strip. Herein a flexible carrier with a front and a rear is provided with LEDs at the front of the carrier, the carrier also being conductors in electrical connection with the LEDs and wherein the carrier is suitable for serving at least at the front as a printed circuit board. Preferably the carrier is an FPC. The front of the carrier and the LEDs are covered with a flexible jacket. The flexible jacket comprises one or more flexible wall parts and one or more flexible cover parts. The transmission of the wall parts is different from the transmission of the cover parts. The arranging of the casing comprises the following steps: - arranging the wall parts on the front side of the carrier, wherein the wall parts are preferably at least as high as the LEDs with respect to the carrier, and wherein the LEDs are situated between the wall parts; - arranging the cover parts on the front side of the carrier, wherein the cover parts cover the LEDs and optionally a part of the carrier.
    A wall part can be provided in one or more layers, wherein a first layer is deposited and optionally second and further layers can be deposited thereon. The depositing can be done manually or automatically, for example with a dosing robot. Automation leads to a less labor-intensive process, certainly with large production quantities. This can also result in a more uniform deposit, wherein the wall part or wall parts can each have approximately the same height relative to the carrier and approximately the same width. Preferably, the carriers on which the wall parts are mounted can then rest to completely complete the curing of the wall parts. The material used for the wall parts preferably comprises a thixotropic RTV silicone, since this lends itself excellently to processes where a layer must be applied and then hardened quickly without appreciably spreading further.
    Applying the cover parts to further cover the LEDs and the carrier can also be done manually or automatically. Preferably the material used for the cover parts comprises silicone. The material for the cover parts furthermore preferably comprises a mixture of two different silicone components, which mixture is preferably vented. The application of the cover parts is preferably done automatically and in a possible embodiment this is carried out with a dosing robot suitable for casting silicone. After applying the cover parts, the unfinished lighting strip can preferably rest and cure completely. The curing can, for example, take place at a temperature of 75 ° C for 1 hour. It is possible here that the wall parts and the cover parts both follow the same curing path, so that the adhesion between wall and cover parts will be better and they will form a single cured layer, as it were. In a possible embodiment, the wall parts, the cover parts and optionally other components are automatically arranged in line on the flexible carrier. In a preferred embodiment, the lighting strip comprises a ribbon-shaped flexible reinforcement material, to which the carrier is attached. This reinforcing material is preferably longer than the carrier and approximately the same width. The method for manufacturing the lighting strip can include a step in which the reinforcing material is cleaned with a solvent and / or cleaned and / or activated with a plasma, after which the rear of the carrier is attached to the reinforcing material, for example with a transfer tape.
    By extension, the method can also comprise one or more of the following steps: - cleaning the carrier with a solvent before the jacket is applied, the carrier comprising a front side and a rear side and one or more LEDs, the LEDs on the be present in front of the carrier in electrical connection with the carrier; - cleaning and activating the carrier with a plasma before the jacket is applied; - applying a reinforcement material to the rear of the support, wherein the reinforcement layer can be cleaned with a solvent and / or a plasma before applying the reinforcement material; - cleaning the rear of the carrier after applying the jacket; - removing imperfections, such as runners, after applying the mantle; - applying a primer on the rear side of the support or on a free side of the reinforcement material; - applying a double-sided tape to the rear of the support or on the free side of the reinforcement material, after applying the sheath; - testing the operation of the LEDs after applying the casing;
    The carrier also preferably comprises one or more connectors in electrical connection with the conductors of the carrier, and / or one or more control elements in electrical connection with the conductors of the carrier and / or a reinforcing material on the rear side of the carrier. This reinforcing material can for instance comprise polyester.
    In the following, the invention is described a.d.h.v. non-limiting examples illustrating the invention, and which are not intended or may be interpreted to limit the scope of the invention.
    In a fifth aspect the invention relates to the use of one or more flexible lighting strips as described in this document, optionally as used in a flexible fabric or flexible as described in this document, for displaying information. This information may or may not be moving images or patterns, the LEDs, for example, each acting separately as a pixel of a larger screen. In this way, screens or displays can be created in places where this would otherwise be difficult or impossible. For example, there is the use of flexible lighting strips for wiring a tennis net. The lighting strips allow advertisements to be shown on the net during interruptions and before and after the competition. During the competition, however, the net must be transparent and at the same time able to withstand the impact of tennis balls reaching speeds of over 250 km / h. EXAMPLES EXAMPLE 1
    In a first example, a flexible lighting strip (10) is described as in FIG. 1A-1B-1C-1D-1E-1F-1G-1H, with LEDs (2) and control elements (3) on the front of the support (1). On the carrier (1) conductors are in electrical connection with the LEDs (2) and the control elements (3). Preferably, the conductors are in electrical connection with a connector (6) as shown in FIG. 1E-1F. This connector (6) is suitable for coupling with an external device. The external device can provide the flexible lighting strip (10) with control signals and / or energy. The carrier (1) is provided on the front with two wall parts (4) which are arranged along the length of the carrier (1), as seen in FIG. 1A and the LEDs (2) and control elements (3) are surrounded. These wall parts (4) are, as seen in FIG. 1B-1D, higher than the LEDs (2) and control elements (3) relative to the carrier (1) to provide more protection. Furthermore, a cover part (5) is provided on the support (1) between the two wall parts (4) which covers the LEDs (2) and control elements (3). By placing the wall parts, ghosting to the sides of the lighting strip is avoided and the LEDs (2) can mainly emit along the front of the support (1). The wall parts and / or cover parts can have a varying height to accommodate any special applications of the lighting strip. Optionally, a ribbon-shaped, flexible reinforcement material (7) can also be provided on the rear of the carrier (1), as shown in FIG. 1C, 1D, 1F, 1H. At the free end between strip and connector, visible in FIG. 1F, fastening elements can also be provided, such as press buttons. EXAMPLE 2
    In an alternative embodiment such as in FIG. 2, the wall parts (4) are placed closer around the LEDs (2) and control elements (3). This further does not limit radiating in directions perpendicular to the carrier (1). EXAMPLE 3
    In an embodiment with a flexible lighting strip radiating along the two sides as in FIG. 3A and FIG. 3B, the rear of the support (1) can also be provided with LEDs (2) and control elements (3), both in electrical connection with conductors of the support (1). At the rear, therefore, wall parts (4) can again be provided on either side along the full length of the carrier (1). The LEDs (2) and control elements (3) at the rear of the carrier (1) again lie between these wall parts (4) at the rear, the wall parts (4) being higher than the LEDs (2) and control elements (3) relative to the rear of the carrier (1). The LEDs (2) and control elements (3) are covered with cover parts (5) that completely cover them. EXAMPLE 4
    In an alternative embodiment of a flexible lighting strips radiating along the two sides, it can consist of two flexible lighting strips (10) as described in this document and specifically described in examples 1 and 2, with the rear sides of the carriers (1) attached to each other , optionally with a reinforcing material (7) in between, as in FIG. 4A and FIG. 4B. EXAMPLE 5
    In an embodiment of a flexible net with lighting strips (10), the embodiment thereof can be a volleyball net, as in FIG. 5A and following. Flexible lighting strips (10) as described in Examples 1 and / or 2 above are attached to one or both sides of the volleyball net and can even serve as the wiring in a ready-to-play net. They are preferably used as the vertical wiring since in this way the lighting strips (10), which can weigh more than the normal wiring, can be kept more easily tight by reinforcing the lower band (8) and the upper band (9) of the volleyball net. Moreover, energy and / or control signals can be supplied to the lighting strips (10) via the upper band (9) and / or the lower band (8), this connection being sufficiently protected. In an alternative embodiment, flexible lighting strips are used that radiate on both sides, as described in this document, among others in Examples 3 and 4. These lighting strips can again replace the wiring of the network. Preferably, the lighting strips again serve as the vertical wiring for the aforementioned reason. These embodiments allow the net to be used as a display for displaying commercials, information about the game or trivia. As mentioned, this is an improvised screen on which much attention has been drawn as a crucial game element, but also as a central object during and outside competitions, and for that reason very interesting to use for displaying information. That is why it is very important to avoid 'ghosting'. In this way, the information displayed on one side of the network does not interfere with the information displayed on the other side of the network.
    In a preferred embodiment of a volleyball net as seen in FIG. 5C, clamping systems (13) are used to connect the lighting strips and ropes (11) and (12) to each other to form a net. In another embodiment, the flexible lighting strips (10) and the ropes (11) and (12) are cross-linked into a net. In yet another embodiment, the flexible lighting strips (10) and the ropes (11) and (12) are fused into a net.
    In a further preferred embodiment, only a part of the net comprises lighting strips, the other half are ropes. These can be made from natural fibers such as cotton and linen, jute, sisal, hemp, coconut fiber, but also from polymers such as nylon, polyethylene, polypropylene, polyesters, aramid and polyacrylate. In a further preferred embodiment, the net comprises in one direction only flexible lighting strips comprising LEDs and in another direction only rope, which can be seen again in FIG. 5A-C where the vertical elements are lighting strips (10) that are connected horizontally by ropes (11) and (12).
    In a preferred embodiment, the rope (11) or (12) is connected in one direction to the lighting strips (10) which include LEDs in the other direction by means of a clamping system (13). The clamping system (13) is preferably slid over the lighting strips (10) which include LEDs and it comprises an opening or claws (14) for the ropes (11) or (12). Preferably, the clamping system (13) is made of a plastic such as polyvinyl chloride, polyethylene, polypropylene, nylon or a polyester such as polyethylene terephthalate.
    In a preferred embodiment, two ropes (11) and (12) are clamped in the clamping system (13). These ropes are woven between the lighting strips (10) comprising LEDs, so that a rope (11) or (12) crosses alternately before or after the lighting strip (10). Paying attention to this that each clamping system (13) holds one rope that crosses before the lighting strip (10) and one rope that crosses behind the lighting strip (10). In this way no stresses are exerted on the fragile elements and conductors of the lighting strip. When knots are placed in the lighting strips, this ensures that stresses and tensile forces can be exerted on the conductors therein, which makes the net more susceptible to damage caused by an impact of, for example, a ball in the net.
    In another preferred embodiment, as seen in FIG. 5D, the ropes (3) which, together with the lighting strips comprising LEDs, form the net are provided with openings (21) at a regular distance from each other. For this purpose, several ropes are preferably spun around each other and where the openings (21) are to be placed, the spinning is stopped. In this way the ropes at the openings (21) can move somewhat freely relative to each other and can be pulled apart. In this way an opening (21) is created through which the lighting strips comprising LEDs can be inserted.
    In another embodiment, the ropes are tied to the lighting strips to form a net. In yet another embodiment, the ropes are fused with the lighting strips to form a net in this way.
    In a preferred embodiment, the net is provided with a lower band (8), a side band and / or an upper band (9), preferably made of canvas. This tape also hides cabling (16) towards the network, as seen in FIG. 5B. This cabling is suitable for being coupled to a lighting strip, to provide it with energy and / or control signals. The cabling is preferably adapted to be coupled to a lighting strip via the connector of a lighting strip.
    In a preferred embodiment the net is provided with a lower band (8), a side band and / or an upper band (9) which is provided with at least one motion detector. This motion detector can record when the respective band has been touched by either a player or by the corresponding movable sports element, such as ball, plume or puck. This can be used to detect network errors and this information can be displayed on the network.
    In a preferred embodiment, the net is provided with a lower band (8), a side band and / or an upper band (9) which is provided with at least one motion detector that detects movement over the respective band, for example a moving ball over the upper band (9) from the net.
    In a preferred embodiment, the net is tensioned between 2 posts. In another preferred embodiment, the net hangs on a structure and functions as a target net. Preferably, the place where the movement takes place is also detected and recorded. This obtained information can then be used in game statistics and to analyze game behavior.
    Compared to a traditional net for sports without lighting elements, the weight of a net according to the invention is much higher. It follows that when the net is tensioned between 2 posts, the net will sag more under the influence of its own weight. In most sports using a net stretched between 2 posts, the amount that the net can sag is limited by the official rules. For example, in volleyball a maximum height difference of 20 mm is permitted between the ends of the net and the center of the net. Due to the large weight of the net and the long distance that the net must bridge, the cable in the upper tire on which the net is suspended will be subjected to a very high tension in order to meet these requirements. The posts between which the net is tensioned will also have to be able to absorb these stresses, as a result of which these posts and the cable must be made of a stronger or thicker material, making them almost unmanageable due to the weight and complexity of the construction.
    In order to solve the problem of net hanging, in a preferred embodiment, the net is provided with two cables (25) and (26) in the upper band (9). The net hangs, as it were, on two different cables. The first cable, preferably a steel cable (25), is used to suspend the net. A greater bending of the net than the net is allowed to sag is hereby tolerated as long as the quantity remains in the dimensions of the upper band (9). This cable (25) carries the weight of the net. The second cable (26) is tensioned between the two posts (23) and the voltage is regulated so that the requirements for maximum sag are met. Since this cable (26) carries no weight, only a small voltage is present in this cable. In a further preferred embodiment, a cover strip (30) is preferably secured in textile, more preferably canvas, around the two cables (25) and (26) to hide these cables and the net resembles a traditional net. This cover strip (30) is preferably arranged with Velcro, Velcro, buttons, press studs or sewn to the net.
    In a preferred embodiment, a system is provided on a first pole (23) for adjusting the tension in the first cable (25) of the upper band (9) and there is a second pole with (23) a system for adjusting the tension in the second cable 26 of the upper band (9). In this way the voltage in each cable can be regulated and this voltage can also differ per cable. The system is preferably a roll-up system, more preferably a winch.
    In a preferred embodiment the net hangs on at least one cable, preferably a steel cable. A double-folded strip of textile, preferably canvas, is arranged around this cable. Holes are provided at regular intervals in this double-folded strip of textile material, which form the attachment points for the lighting strips that comprise LEDs. The lighting strips are fastened to the double strip of textile with a fastener (22). Preferably the fastener is a button, a snap button, screw and bolt or rivet. In a further preferred embodiment, the lower band (8) of the net is made up of a folded textile strip, preferably canvas, and the lighting strips are connected to this strip in the same way. The lower band (8) may also comprise the cabling (16) of the LEDs (2) and / or the control elements (3) instead of a cable. Preferably a strip of textile, preferably canvas, is provided to screen off the attachment of the flexible lighting strips.
    In a preferred embodiment tension elements (28) are attached to the side bands (27) which are connected to the posts (23). These elements maintain a voltage on the network, so that no distortion of the image occurs. These tension elements (28) are preferably made of textile, more preferably of canvas.
    In a preferred embodiment, the posts on which the net is suspended are hollow from the inside. This cavity houses the cabling (16) and any control, or receiver needed for the information to appear on the network. The placement of these parts in the cavity of the pole ensures that they are protected during the exercise of the sporting activity. The posts are preferably provided with reinforcement inside, inter alia, by providing additional profiles in the post (23). More preferably, the posts (23) are provided at the top with a pulley (24) in which the cables (25) or (26) belonging to the upper tire (9) run. EXAMPLE 6
    In an embodiment of a flexible net with lighting strips (10), the embodiment thereof can be a soccer net, as in FIG. 6 to see. Flexible lighting strips (10) as described in Examples 1 and / or 2 above are attached to one or both sides of the football net and can even serve as the wiring in a ready-to-play net. Preferably, the lighting strips (10) will only be placed at the rear of the net since this is the side visible to the supporters and the front can distract attention from the game. For that reason it is crucial to avoid 'ghosting' as this can distract players and / or referees. As with the volleyball net, extra support elements can be included to ensure that the net is sufficiently tensioned. This is not only important for the course of the game, but also for using the net as an improvised display. For that reason, for example, a supporting cable (18), for example a steel cable, can be tensioned which is connected to the net so that it does not sag too strongly.
    It is believed that the present invention is not limited to the embodiments described above and that some modifications or changes can be added to the described examples without re-evaluating the appended claims. For example, the present invention has been described with reference to a volleyball net and a football net, but it should be understood that the invention can be applied to, for example, tennis or shot put.
    权利要求:
    Claims (15)
    [1]
    CONCLUSIONS
    A flexible lighting strip comprising: a. A flexible support with a front side and a rear side, wherein the support extends along a longitudinal direction, and wherein the support is suitable to act as a printed circuit board, comprising: i. one or more LEDs, the LEDs at the front of the carrier being attached in electrical connection to the carrier; b. a flexible jacket covering the LEDs; wherein the jacket comprises one or more wall parts and one or more cover parts, wherein the wall parts extend in the longitudinal direction of the carrier in such a way that the LEDs lie between the wall parts, the cover parts covering the LEDs, and wherein the transmission of the wall parts is different from the transmission of the cover parts; characterized in that the lighting strip comprises a flexible reinforcement material at the rear of the carrier, preferably wherein the reinforcement material is as wide as the rear of the carrier, and at least as long, to completely cover the rear of the carrier, wherein the reinforcement material is adapted to at least partially absorb stresses on the lighting strip along the longitudinal direction of the carrier.
    [2]
    A flexible lighting strip according to the preceding claim 1, wherein the reinforcing material is ribbon-shaped and comprises polyester, wherein the reinforcing material is resistant to a tensile force along the longitudinal direction of at least 800 N, preferably at least 1500 N and more preferably at least 2500 N.
    [3]
    A flexible lighting strip according to any one of the preceding claims 1 or 2, wherein the lighting strip comprises one or more connectors in electrical connection with the carrier, suitable for receiving control signals and / or energy and transmitting control signals and / or energy to the carrier .
    [4]
    A flexible lighting strip as claimed in any one of the preceding claims 1 to 3, wherein the carrier comprises one or more control elements, in electrical connection with the carrier, the jacket covering the control elements, the control elements being suitable for individually connecting the LEDs to control, preferably via multiplexing, and wherein preferably the control elements lie between the wall parts.
    [5]
    A flexible lighting strip according to any one of the preceding claims 1 to 4, wherein the cover parts have a higher transmission than the wall parts, preferably such that the cover parts have a transmission between 50% and 100% and the wall parts have a transmission comprises between 0% and 50%.
    [6]
    A flexible lighting strip according to any one of the preceding claims 1 to 5, wherein the wall parts comprise silicone, preferably a thixotropic RTV silicone.
    [7]
    A flexible lighting strip according to any one of the preceding claims 1 to 6, wherein the cover parts comprise silicone.
    [8]
    A flexible lighting strip according to any of the preceding claims 1 to 7, wherein the wall parts are at least higher than the LEDs relative to the carrier.
    [9]
    A flexible lighting strip as claimed in any one of the preceding claims 1 to 8, wherein a double-sided tape is attached to the rear of the carrier or to a free side of the reinforcing material, the double-sided tape preferably being approximately as long and wide as the side to which the double-sided tape is attached.
    [10]
    A flexible lighting strip comprising: a. At least two flexible carriers with a front side and a rear side, wherein the carriers extend along a longitudinal direction, with the rear sides of the carriers facing each other, the rear sides being connected to each other, whether or not directly, and wherein the carriers are suitable to act as a printed circuit board, each comprising: i. one or more LEDs, the LEDs at the front of the carrier being attached in electrical connection to the carrier; b. one or more flexible jackets that cover the LEDs; c. a flexible reinforcement material located between the carriers; d. and optionally one or more connectors in electrical connection with the carriers, suitable for receiving control signals and / or energy and passing control signals and / or energy to the carriers; wherein the jackets each comprise one or more wall parts and one or more cover parts, wherein the wall parts extend in the longitudinal direction of the carrier in such a way that the LEDs lie between the wall parts, the cover parts covering the LEDs, and wherein the transmission of the wall parts is different from the transmission of the cover parts; characterized in that the reinforcing material is as wide as the rear of the carriers, and at least as long, to completely cover the rear of the carriers, wherein the reinforcing material is adapted to at least partially absorb stresses on the lighting strip along the longitudinal direction of the carriers to catch.
    [11]
    A flexible lighting strip according to the preceding claim 10, wherein the reinforcing material is ribbon-shaped and comprises polyester, wherein the reinforcing material is resistant to a tensile force along the longitudinal direction of at least 800 N, preferably at least 1500 N and more preferably at least 2500 N.
    [12]
    A flexible fabric comprising a front side, a rear side and a grid provided with a plurality of flexible lighting strips according to any of the preceding claims 1 to 11, wherein the lighting strips are attached to the grid in a first direction and optionally a second direction. the front and / or back of the fabric, wherein the second direction differs from the first direction and wherein the lighting strips on the front and the back of the fabric can be controlled separately.
    [13]
    A flexible net for a sport, wherein the net comprises meshes, wherein the meshes have a diameter smaller than the diameter of a sporting element associated with the sport such as, for example, ball, puck or plume, and wherein the net has a plurality of flexible lighting strips according to claim 1 to 11, wherein the lighting strips can be controlled separately.
    [14]
    A method for manufacturing a flexible lighting strip, comprising the following steps: a. Cleaning a flexible reinforcement ribbon with a solvent and / or activating the reinforcement ribbon with a plasma; b. optionally cleaning a flexible carrier suitable as a printed circuit board with a solvent, the carrier comprising a front side and a rear side and one or more LEDs, the LEDs on the front side of the carrier being in electrical connection with the carrier; c. applying the carrier to the reinforcement ribbon, wherein the reinforcement ribbon is approximately as long and / or wide or longer and / or wider than the carrier; d. cleaning and activating the carrier with a plasma; e. covering the LEDs and the front of the carrier with a flexible jacket; f. optionally removing imperfections, such as spurs; g. optionally applying a double-sided tape to the rear of the carrier; h. optional testing of the operation of the LEDs; wherein the jacket comprises one or more flexible wall parts and one or more flexible cover parts wherein the transmission of the wall parts is different from the transmission of the cover parts and covering the LEDs and the front of the carrier with a jacket comprises the following characteristic steps: - arranging the wall parts on the front side of the carrier, wherein the wall parts are preferably at least as high as the LEDs relative to the carrier, and wherein the LEDs are situated between the wall parts; - arranging the cover parts at the front of the carrier, wherein the cover parts cover the LEDs and optionally a part of the carrier, the reinforcement material being as wide as the rear of the carriers, and at least as long, around the rear of the carriers to completely cover, the reinforcement material being adapted to at least partially absorb stresses on the lighting strip along the longitudinal direction of the carriers.
    [15]
    Use of one or more flexible lighting strips according to one of claims 1 to 11, or a flexible fabric according to claim 12 or a flexible net according to claim 13, for displaying information such as images and patterns.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BE2014/0519|2014-07-07|
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