BE1025296B1 - LED BALL - Google Patents

Abstract

The present invention relates to a light-emitting marble comprising a hard, spherical shell, wherein the spherical shell defines an internal cavity, the marble comprising an electronic control unit in the internal cavity, and wherein the marble comprises one or more light-emitting elements, preferably LED. in the internal cavity, which luminous elements are controlled from the control unit, the spherical envelope having a maximum diameter of at most 3.5 cm, preferably at most 3.0 cm, more preferably at most 2.5 cm and most preferably at most 2.0 cm, and wherein the control unit comprises a motion-detecting component suitable for detecting movement of the marble, and wherein the control unit comprises a switch suitable, inter alia, for switching on and off the control unit, wherein the light-emitting elements are controlled by the control unit inter alia on the basis of signals of the motion detection acting component.

Description

LED BALL

TECHNICAL DOMAIN

The invention relates to a light-emitting marble, suitable for use in games, and adapted to provide sufficient strength for the more sensitive components, wherein the lighting of the marble adapts to the situation in terms of a number of parameters.

BACKGROUND ART

Marbles are round objects that are mainly used as game objects. In some marble games, a marble is manually or by using. gave a device a brief but powerful initial impulse after which the marble rolls further over a surface, in many cases with the intention of touching another object, such as another marble, and possibly moving it. In some games the marble is set in motion by gravity, for example with marble tracks. A marble is here made of a hard material and preferably with a smooth surface, whereby collisions and rolling movements can proceed very efficiently, i.e. without energy losses. Marbles are relatively small game objects relative to other spherical game objects that are typically rolled on while playing, such as a football, petanque ball, golf ball, etc.

A problem with the known luminous, round elements is that they only exist in large dimensions (golf ball, table tennis ball, billiard ball as smallest versions, which is quickly more than twice as large in dimensions than a marble, if not more). Naturally, the installation of luminous elements is much easier with larger balls. It should also be noted that for the light balls mentioned, the functionalities were particularly limited, namely on and off, and there is no possibility of more nuanced or complex lighting.

In addition, the approach with a light-emitting marble is fundamentally different from the aforementioned concepts, where these are largely opaque and have a light-emitting channel at some positions on the surface of the ball.

The applicant intends to provide a light-emitting marble that can be controlled on the basis of a number of parameters, not only in terms of switching on and off, but also in terms of the precise nature of the lighting (color,

BE2017 / 5913 cartridge, etc.). No relevant patent document mentions or suggests that such a type of marbles permits a thorough inspection of the luminescent elements.

It is an object of the present invention to find a solution to at least some of the aforementioned problems.

SUMMARY OF THE INVENTION

The invention relates to an improved marble with luminous elements. The marble includes a hard, spherical shell, the spherical shell defining an internal cavity, and wherein the marble comprises an electronic control unit in the internal cavity. The marble further comprises one or more light-emitting elements, preferably LEDs, in the internal cavity, which light-emitting elements are controlled from the control unit, the spherical envelope having a maximum diameter of at most 3.5 cm, preferably at most 3.0 cm, more preferably at most 2.5 cm and most preferably at most 2.0 cm. The control unit comprises a motion-detecting component, and further comprises a switch suitable, inter alia, for switching the control unit on and off, wherein the light-emitting elements are controlled by the control unit (inter alia) on the basis of signals from the motion-detecting component, and wherein the marble an energy source for supplying energy to the control unit and comprising the light emitting elements in the internal cavity.

In a second aspect, the invention relates to a kit comprising one or more marbles according to an embodiment of the invention, and a mat comprising one or more magnetic elements.

DESCRIPTION OF THE FIGURES

Figure 1 shows a section of a possible embodiment of a marble according to the invention.

Figure 2-3 show exploded perspectives of the marble according to Figure 1.

BE2017 / 5913

DETAILED DESCRIPTION

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.

One, the, and the reference in this document 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 approximately or around in this document is used with a measurable quantity, a parameter, a duration or moment, and the like, variations are meant of +/- 20% or less, preferably +/- 10% or less, more at 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 apply in the described invention. However, it must be understood that the value of the quantity at which the term is used approximately or around is itself specifically disclosed.

The terms include, comprising, consisting of, provided with, containing, containing, including, including, including, including its synonyms and its inclusive or open terms indicating the presence of what follows, and which do not exclude or preclude the presence of other components, features, elements, members, steps, known from or described in the prior art.

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 marble, comprising a hard, spherical shell, wherein the spherical shell defines an internal cavity, and wherein the marble comprises an electronic control unit in the internal cavity. The marble further comprises one or more light-emitting elements, preferably LEDs, in the internal cavity, which light-emitting elements are controlled from the control unit, the spherical envelope having a maximum diameter of at most 4.0 cm, preferably 3.5 cm, more preferably at most 3.0 cm, at

BE2017 / 5913 still more preferably at most 2.5 cm and most preferably at most 2.0 cm. The control unit comprises a motion-detecting component suitable for detecting movement of the marble, and further comprises a switch suitable, inter alia, for switching the control unit on and off, wherein the light-emitting elements are controlled by the control unit inter alia on the basis of signals from the motion detecting component. Here, the marble comprises an energy source for supplying energy to the control unit and the light-emitting elements in the internal cavity. Preferably, the cavity of the envelope is approximately completely filled with the control unit, light emitting elements and optionally other components. The control unit and the detectors are preferably arranged on a printed circuit board (PCB), the PCT being processed in the internal cavity. Preferably, the light-emitting elements are also applied to the PCB.

As stated earlier, there is currently no marble available in which luminous elements are provided. The closest approach to this can be seen in billiard balls or golf balls with luminous elements, since these must offer a certain rigidity (in contrast to, for example, table tennis balls). However, golf balls have an absolute minimum diameter of 4,267 cm, and the document US 2007/173349 A1 in which a luminous golf ball is described, does not deviate in any way from this. Billiard balls are typically even a lot bigger, with a diameter above 6.1 mm. It should also be noted that for golf balls, the main functionality lies in making the golf balls clearly visible (in the dark, in thick vegetation, in water, etc.) to find them back before playing. The addition of the light-emitting elements to marbles, however, serves to add an extra dynamic to playing with the marbles, since the light-emitting elements are controlled inter alia on the basis of signals from the motion-detecting signals. These signals may, for example, relate to the movement of the marble or not, and optionally in addition, the speed may also be recorded to some extent and / or a rotational speed of the marbles (during a rolling movement). On the basis of the signals, the light can for example become brighter, change color, and / or the light-emitting elements can give a different frequency and / or with a different duration of light. For example, the lack of movement (or at least the registration thereof) can result in the luminous elements that have been extinguished or dimmed.

Including a switch in the marble, which the control unit (and thus the light-emitting elements) can turn off, ensures that energy is not used unnecessarily. Given the compact dimensions of a marble, it serves

BE2017 / 5913 replacing the energy source of the marble is avoided as much as possible by adopting an energy-efficient use, and also the choice for efficient lighting elements such as LEDs (light-emitting diodes).

The marbles have a diameter of less than 3.5 cm, which is the size of a so-called 'half sphere bust', but in principle the marbles according to the invention are aimed at a diameter comprised between 12 mm (so-called minis') and 24 mm (so-called bullet chain) , for example, an ordinary marble of about 16 mm diameter. Deviating diameters are also possible, for example 13 mm, 14 mm, 15 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm or intermediate values. This also shows once again the difference between the prior art and the invention of this document. Given that miniaturization of electronics is not an obvious step, certainly not because it involves a significant reduction in volume (with a factor of more than 15 for an 'ordinary' marble of 16 mm diameter) and there is also a need for great robustness of the case and of the electronics, this clearly indicates the presence of an inventive step.

The motion detecting component may in this situation comprise a gyroscope and / or an accelerometer. A certain sensitivity must be set as the lower limit for the motion-detecting component before it transmits an 'active' (motion) signal. In this way it is avoided that during general activities where the marbles are moved, the motion-detecting component would already control the light-emitting elements to give light. An example of such a lower limit is a speed of a walking person, about 1.4 m / s, or a minimum rotation speed of (44.5 / diameter of the marble in cm) rotations / s.

The control unit is typically a chip that controls the light emitting elements, and is provided with the necessary components or connected thereto (e.g., motion detecting component, switch) that provide input (signals) to the control unit. The control unit then controls the light-emitting elements based on the received signals.

In a preferred embodiment the light-emitting elements are at least controllable in terms of: color of light of the light-emitting elements, frequency and / or rhythm with which the light-emitting elements give light, luminous intensity with which the light-emitting elements give light.

A strong advantage of the invention is that they make playing with marbles much more dynamic by adding light. Moreover, by making the lighting highly adaptable (whether or not based on, among other things, signals that the

BE2017 / 5913 control unit), this effect is greatly increased. For example, the lighting can change color, the lights can go on and off at adjustable and / or variable frequencies, the lights can become brighter or less bright, etc. By also controlling these effects based on the signals received in the control unit , the light gives even more insight into the movement of the marble (for example speed, collision, rotation, etc. can all be registered and influence the light via signals from detectors to the control unit).

In a preferred embodiment, the spherical shell comprises two, preferably hemispherical, halves, which halves are adapted to be releasably connected, thereby forming the spherical shell. Note that 'halves' can mean two approximately symmetrical halves (in terms of outer surface) such as hemispherical halves, but also simply two separate parts.

In a further preferred embodiment, the two (hemispherical or non-hemispherical) halves are connectable via a threaded connection. In an alternative embodiment, the two (hemispherical or non-hemispherical) halves can be coupled via a rotational movement, wherein a snap-fit connection is provided which anchors the connection of the two halves. In yet another embodiment, the two halves are glued and thus attached to each other, or fused together.

The advantage of a cover that can be 'opened' speaks for itself. It allows to replace components or light emitting elements (for repair or for upgrades), replace energy sources (batteries) and others. It is thereby necessary that the opening of the cover is simple, but that once closed it is very firmly anchored. Given the frequent and hard collisions that marbles make (soil, other marbles), the coupling must be firm so that it does not open accidentally. A snap-fit connection or thread is a simple option for this. The advantage is also that the coupling takes place on the outside (or still outer layer) of the marble, and therefore does not result in spatial restrictions for the control unit and other electronic elements.

In a preferred embodiment, the casing comprises a thin straight channel from the outside of the marble to the switch for actuating the switch. This is preferably a cylindrical open shaft that runs radially, with a radius of at most 2 mm, but preferably at most 1 mm, or even lower, 0.75 mm or 0.5 mm. In this way the open shaft disrupts the general mass distribution of the marble as little as possible and it also has a limited impact on it

BE2017 / 5913 the surface (and the rolling of the marble is minimally affected). The channel allows a thin pin or stick (paper clip, toothpick, hairpin, etc.) to act on the switch (on or off). The marble is thus provided with a relatively simple way to switch it on and off that cannot be activated in an undesirable way, this in contrast to known systems (where shaking or sudden impact can cause activation, for example). The channel is preferably at least 1 mm deep up to the switch, and at most 15 mm, but preferably the channel is at least 1.5 mm deep and at most 10 mm deep up to the switch, and further preferably at least 4% and at most 10% of the diameter of the marble.

In a preferred embodiment, the control unit comprises a light-detecting component, the light-detecting component being adapted to switch off the control unit (or the light-emitting elements) at an incident light intensity (or illuminance or luminance) below a predetermined lower limit and adapted for switching on the control unit (or the light emitting elements) with an incident light intensity (or illuminance or luminance) above a predetermined upper limit.

A light-detecting component, such as a photocell, can furthermore be used to switch the marbles on and off, for example if they are in a bag or marble box where virtually no light enters. For example, the lower limit (and upper limit) can be set very low so that the marbles still emit light with low incidence of light (twilight and the like), since these are times when the lights can have even more effect. However, by working with a very low effective lower limit, it is ensured that the marbles would no longer emit light (and consume energy) once they were stowed away and were not accidentally turned off (via the switch or other. By the light-detecting component, and signals thereof, to be used as a trigger that determine the efficacy (on / off) of the light emitting elements or the control unit itself, are as it were a back-up trigger that avoids unwanted energy consumption. switch is on, but additional activation is required to make the light-emitting elements work through the light detection.

In certain embodiments, the light detecting component can be used to generate a start-up current or voltage for the control unit. In still further embodiments, such components can even be used to charge the energy source of the marbles. An example of such a low lower limit for the illuminance for turning off the control unit is

BE2017 / 5913 approximately 0.1 lux or 0.01 lux, or even 0.001 lux, 0.0005 lux or lower. The lower limit preferably corresponds to the upper limit.

In a preferred embodiment the energy source is replaceable and / or rechargeable. A rechargeable energy source is preferred for practical reasons. This would in principle also offer the possibility of a single envelope that cannot be opened, since the energy source does not have to be replaced. In a possible embodiment, the energy source can be charged by moving the marble, by absorbing kinetic energy of the movement (for example, of rotation).

In a preferred embodiment, the energy source is rechargeable via induction. This offers the advantage that the marble would no longer have to be opened for charging the energy source.

In an (alternative or additional) preferred embodiment, the energy source is rechargeable via a wired connection, and wherein the spherical envelope is provided with one, two or more straight channels from the outside of the marble to the energy source, for receiving one, two or more connectors for charging the energy source.

In a preferred embodiment, the control unit comprises an impact monitor suitable for recording physical shocks, and wherein the light-emitting elements are controlled inter alia on the basis of signals from the impact monitor.

The registration of physical shocks (collisions, impact) can be easily determined, for example with the help of an accelerometer. By transmitting these signals to the control unit, the light-emitting elements can be controlled on the basis thereof (for example, brighter light in the event of a collision and / or discoloration).

In a preferred embodiment the control unit comprises a wireless communication module, preferably a Bluetooth module, for short-distance wireless connections with another wireless communication module, preferably with a Bluetooth module, wherein the light-emitting elements are controlled inter alia on the basis of signals of the marble communication module. Additionally or alternatively, the communication module can also be a Zigbee module.

BE2017 / 5913

For example, the proximity of another marble can be registered, and that signal can then lead to an adjustment of the light from the light emitting elements (discoloration, frequency change, change in brightness, etc.). In addition, the marble's communication module can also be controlled from another electronic device that is capable of wireless communication (for example, tablet, smartphone, etc.), and that can thus control the light from the light-emitting elements.

In a possible embodiment, electronic devices with a communication module suitable for communicating with the marble's communication module can read out information from the marble's control unit. This data can be instantaneous signals from the detectors of the control unit. However, the control unit can also comprise a memory element, on which data (previous signals with possible timestamps) are collected, and from which this data can be read by said electronic devices with a suitable communication module. Again Bluetooth is preferred, but other types are also possible, such as Zigbee. Preferably, communication takes place with a specifically developed mobile application (app) for smartphone, tablet and other electronic devices.

In a preferred embodiment, the sheath has a minimum hardness of 5.5, preferably of 6, more preferably of 6.5 and even more preferably of 7, on the Mohs hardness scale.

To protect the internal hardware (control unit, light-emitting elements and the like), a sturdy casing must be provided. Because the marbles will be subject to frequent and hard collisions, it must be ensured that the material does not crack or break quickly, and is preferably also scratch-resistant. For this reason, a minimum value on the Mohs hardness scale is required of 5.5, but preferably higher, for example 6, 6.5, or even 7 (or 7.5 or even higher).

In a preferred embodiment the control unit comprises a detector suitable for recording a shaking movement of the marble, preferably wherein said sensor comprises an accelerometer, and wherein the light-emitting elements are controlled inter alia on the basis of signals from said detector, preferably wherein recording of a shaking movement of the marble the light-emitting elements and / or control unit are switched on or off.

BE2017 / 5913

The applicant noticed that the addition of a second trigger for switching the control unit or the light emitting elements on and off may be useful to further reduce unwanted power consumption. This second trigger can be considered as an additional condition to switch on the light-emitting elements, in addition to the switch being 'on'. Note that this can be combined with other triggers, such as detection of light and / or others.

In a preferred embodiment, the envelope is substantially translucent, preferably wherein the envelope diffuses light from the light emitting elements.

Due to a suitable choice of materials, the casing can cause diffuse light transmittance, which can provide a more homogeneous illumination of the marble, instead of the presence of one or more local light points.

In a preferred embodiment, the marble comprises a component for detecting the speed and / or acceleration of the marble, and wherein the light-emitting elements are controlled inter alia on the basis of signals from said component for detecting the speed and / or acceleration of the marble, preferably wherein the color of the light of the light-emitting elements varies with the speed and / or acceleration of the marble.

In a preferred embodiment, the envelope comprises fluorescent material. The fluorescent material can be scattered through the casing (e.g. as a pigment or dye), or applied as a layer, preferably with an additional coating or covering layer above it for protection. The use of fluorescent materials can provide more diffuse illumination, as this incident light can partially absorb the light-emitting elements and radiate back omni-directionally.

In a preferred embodiment, the envelope comprises one or more reflective elements.

In a preferred embodiment, the sheath is partly transparent, and partly opaque or opaque. In this way a number of windows can be defined along which the light from the light-emitting elements is guided, while other areas of the surface do not transmit light.

BE2017 / 5913

In a preferred embodiment, the sheath comprises an internal cover that extends around the internal cavity, the internal cover having an opacity for hiding the control unit.

In a preferred embodiment, the envelope comprises plastic, glass and / or a composite material.

In a preferred embodiment, the switch is a piezo switch. By applying pressure to a piezo switch, it is distorted, causing electrical charges that turn the switch on or off. Moreover, these types of switches are very durable.

In a preferred embodiment, the marble comprises at least two or more of the light-emitting elements, which light-emitting elements can be controlled separately, preferably wherein the light-emitting elements are mutually differently oriented with respect to the beam direction.

In a preferred embodiment, the mass distribution of the marble is approximately radially symmetrical in order to influence the rolling as little as possible.

In a preferred embodiment, the marble comprises an electrical circuit which is electrically connected to the control unit, the circuit suitable for generating an electric current with a variation in the magnetic field present, and the thus generated electric current switching on the control unit.

This adjustment can be used again as an additional trigger or switch for switching the light-emitting elements and / or the control unit on and off. By using Faraday's Law, it is very easy to generate a temporary current in the circuit when the circuit is confronted with a variable magnetic flux. This temporary current is then used as a trigger to switch the control unit and / or the light emitting elements on or off.

It should be noted in general that the electronic components (control unit, detection components of all kinds, electrical circuit, switch, and optionally also the light-emitting elements) preferably, depending on whether they are present in the embodiment, in a preferred embodiment

BE2017 / 5913 be applied to a printed circuit board (PCB) that is inserted into the internal cavity.

In a second aspect, the invention relates to a kit comprising one or more marbles according to the invention as described above, and a mat comprising one or more magnetic elements for generating an induced electric current. This electric current is used to switch the control unit and / or the light emitting elements on or off.

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.

EXAMPLES

EXAMPLE 1:

A possible embodiment of the marble according to the invention is shown in Figure 1 which shows a cross-section, and Figures 2 and 3 which show an exploded perspective of the marble. In this embodiment, the sheath comprises two separate halves (1a, 1b) that are approximately hemispheric, with a recess in both halves (1a, 1b) forming an internal cavity (5a, 5b) in the sheath when coupling the two halves . A control unit (2) is present in the internal cavity (5a, 5b). One or more light-emitting elements are mounted on this control unit (2), as well as one or more detection components. These detection components can register a large number of stimuli and transmit this via signals to the control unit (2). The stimuli can be one or more of the following: movement, rotation, acceleration, impact, light, magnetic flux (and / or change thereof), pressure (switch (3)). The detection components are preferably integrated in the control unit (2). The control unit (2) then controls the light emitting elements on the basis of the signals from the detection components. In Figures 1-3 an open channel (4) can be seen from the outside of the marble to the switch (3). This channel (4) is thin enough to have as little impact as possible on the rolling and moving of the marble, and serves to allow a user, via a narrow pin or other tool, to press the switch (3) to turn the marble (the control unit (2)) on or off.

BE2017 / 5913

EXAMPLE 2:

In a possible embodiment, the control unit (2) is provided with a switch (3) and a motion sensor. The control unit (2) receives signals from said detection components which are electrically connected to the control unit (2) (preferably integrated therein), and checks the operation of the light emitting elements on the basis of the signals. The switch (3) has two or more positions, which include at least 'ON' and 'OFF', but can optionally have additional positions: for example flashing light, fast / slow flashing light, dimmed, bright, other colors, or certain pre-programmed patterns ( in speed, ferocity and / or color). Pressing the switch (3) cycles through a specific order of the positions.

In this embodiment, the marble is also provided with a movement sensor, which serves as an additional trigger for directing the operation of the light-emitting elements (via the control unit (2)). Upon registration of a movement above a certain lower limit (intended to distinguish unconscious, smaller movements from conscious movements, such as rolling), a signal is transmitted to the control unit (2), and the control unit (2) can control the light-emitting elements on the basis of of the signal. The evaluation of whether the detected movement falls above or below the lower limit is preferably performed centrally on the control component. For example, on the basis of the registered speed, the light can become proportionately brighter, or the frequency of flickering can change, or the color can change. In the absence of movement, this is also passed on, and the control unit (2) can automatically start dimming and / or switching off the light-emitting elements after a movement has not taken place over a certain time.

EXAMPLE 3:

In a further possible embodiment, building on Example 2, the control unit (2) is further provided with a light-detecting component. In the absence of light (ie below a certain lower limit), the control unit (2) will switch off the light-emitting elements. Note that this lower limit is preferably such that it applies to a closed container without internal light sources, since the marbles should be able to light up in dark conditions.

Embodiments can also be provided with impact detectors (collision detection can, for example, lead to flicker / temporary brighter light from the light emitting

BE2017 / 5913 elements, change of color, change of lighting pattern, or several of the aforementioned effects.

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 marbles, but it is to be understood that the invention can be applied to, for example, beads or other, small and approximately round elements.

Claims (10)

CONCLUSIONS A marble comprising a hard, spherical shell, the spherical shell defining an internal cavity, the marble comprising an electronic control unit in the internal cavity, and wherein the marble comprises one or more luminous elements, preferably LED, in the internal cavity , which light-emitting elements are driven from the control unit, characterized in that the spherical envelope has a maximum diameter of at most 4.0 cm, preferably at most 3.5 cm, more preferably at most 3.0 cm and even more preferably at most 2.5 cm and most preferably at most 2.0 cm, and wherein the control unit comprises a motion-detecting component suitable for detecting movement of the marble, and wherein the control unit comprises a switch suitable for switching on and off the control unit, wherein the light-emitting elements are controlled by the control unit based on signals from the motion detector operating component, and wherein the marble comprises an energy source for supplying energy to the control unit and the light emitting elements in the internal cavity. A marble according to the preceding claim 1, wherein the light-emitting elements can be controlled at least in terms of: color of light of the light-emitting elements, frequency and / or rhythm with which the light-emitting elements give light, light intensity with which the light-emitting elements give light. A marble according to any one of the preceding claims 1 or 2, wherein the spherical shell comprises two hemispherical halves, which halves are adapted to be releasably connected, thereby forming the spherical shell, preferably wherein the two hemispherical halves can be connected via a threaded connection or in which the two hemispherical halves can be connected via a rotational movement in which a snap-fit connection is provided which anchors the connection of the two halves. A marble according to any of the preceding claims 1 to 3, wherein the casing comprises a thin straight channel from the outside of the marble to the switch, for actuating on the switch. BE2017 / 5913 The marble comprises an electrical circuit which is electrically connected to the control unit, wherein the circuit is adapted to generate an electric current with a variation in the magnetic field present, and the electric current thus generated switches on the control unit. A marble according to any one of the preceding claims 1 to 4, wherein the control unit comprises a light-detecting component, wherein the light-detecting component switches off the control unit at an incident light intensity below a predetermined lower limit and switches on at an incident light intensity above a predetermined upper limit. The marble according to any of the preceding claims 1 to 5, wherein the energy source is replaceable and / or rechargeable. A marble according to any one of the preceding claims 1 to 6, wherein the energy source is rechargeable via induction. A marble according to any one of the preceding claims 1 to 7, wherein the energy source is rechargeable via a wired connection, and wherein the spherical envelope is provided with one, two or more straight channels from the outside of the marble to the energy source, for receiving one, two or more connectors for charging the energy source. The marble according to any of the preceding claims 1 to 8, wherein the control unit comprises an impact monitor suitable for recording physical shocks, and wherein the light-emitting elements are controlled inter alia on the basis of signals from the impact monitor. A marble according to any one of the preceding claims 1 to 9, wherein the control unit comprises a wireless communication module, preferably a Bluetooth module, for short-distance wireless connections with another wireless communication module, the light-emitting elements being controlled under more based on signals from the marble communication module of the marble. A marble according to any one of the preceding claims 1 to 10, wherein the casing has a minimum hardness of 5.5, preferably of 6, further preferably of 6.5 and even more preferably of 7, on the Mohs hardness scale. A marble according to any of the preceding claims 1 to 11, wherein the control unit comprises a detector suitable for recording a shaking movement of the marble, preferably wherein said sensor comprises an accelerometer, and wherein the light-emitting elements are controlled among other things based on signals from the aforementioned BE2017 / 5913 detector, preferably in which the recording of a shaking movement of the marble switches the light-emitting elements and / or the control unit on or off. A marble according to any one of the preceding claims 1 to 12, wherein the envelope is substantially translucent, preferably wherein the envelope diffuses light from the light emitting elements. A marble according to any one of the preceding claims 1 to 13, comprising a component for detecting the speed and / or acceleration of the marble, and wherein the light-emitting elements are driven inter alia on the basis of signals from said component for detecting speed and / or acceleration of the marble, preferably wherein the color of the light of the light emitting elements varies with the speed and / or acceleration of the marble. A marble according to any of the preceding claims 1 to 14, wherein the sheath comprises fluorescent material. A marble according to any one of the preceding claims 1 to 15, wherein the envelope is partly transparent and partly opaque or opaque. A marble according to any one of the preceding claims 1 to 16, wherein the casing comprises an internal cover that extends around the internal cavity, the internal cover having an opacity for hiding the control unit. The marble according to any of the preceding claims 1 to 17, wherein the casing comprises plastic, glass and / or a composite material. The marble of any one of the preceding claims 1 to 18, wherein the switch is a piezo switch. A marble according to any one of the preceding claims 1 to 19, wherein the marble comprises at least two or more of the light-emitting elements, which light-emitting elements can be controlled separately, preferably wherein the light-emitting elements are mutually differentially oriented in terms of beam direction. BE2017 / 5913 A marble according to any one of the preceding claims 1 to 20, wherein the mass distribution of the marble is approximately radially symmetrical. A marble according to any one of the preceding claims 1 to 21, wherein the 23. Kit comprising one or more marbles according to the preceding claim 22, and a mat comprising one or more magnetic elements.