shoe with light source

Abstract

Shoe with a sole, a light source (10, 40) arranged on the shoe and a switch (20), wherein the switch (20) is designed to be actuated by applying pressure with the foot to switch on the light source (10, 40), wherein the light source (10) is arranged on the shoe such that the light source (10) emits light from at least one location on the underside of the shoe towards the front part of the sole of the shoe, wherein the emitted light strikes one or more surfaces of the structure of the profile on the outside of the sole and is at least partially reflected thereon, wherein the light is not emitted directly into the environment without striking areas of the sole profile.

Description

The invention relates to a shoe with an integrated light source. To improve the safety of emergency personnel, such as firefighters, paramedics, and police officers, or road workers, clothing is often equipped with reflective elements. However, under extreme visibility conditions, such as those encountered during firefighting operations in heavily smoke-filled buildings, reflective elements on clothing are often no longer visible and lose their function when light beams from light sources can no longer penetrate the smoke. Emergency personnel entering buildings under such conditions lose visual contact, even when using powerful handheld lights, and can only maintain contact with colleagues through physical contact. Immobilized or unconscious individuals cannot be located under such visibility conditions. DE 695 28 975 T2 describes a shoe with a housing, a circuit housed in the housing, and at least one EL light strip attached to the shoe and electrically connected to the circuit. The circuit comprises a power supply, a transformer electrically connected to the DC / AC converter, a functional interface electrically connected to the transformer, and a switch electrically connected between the transformer and the EL light strip. US 1,597,823 A describes a shoe comprising a heel area with an opening extending longitudinally along the shoe and an opening at the front and back of the heel, and an insert arranged in the opening with a back wall for closing the opening at the back of the heel, a self-contained, electrically operated lighting device arranged in the insert, which is positioned within the lining material such that the light rays emitted by it exit from the opening at the front of the heel area, normally spaced contact arms arranged within the back wall of the lining material, and a device carried by the back wall of the lining material for moving the contact arms into engagement with one another to close the circuit through the lighting device. DE 79 30 576 U1 describes a shoe or clog with a transparent body through which light and sound can pass. This allows the clog to be used for advertising purposes to draw attention to the messages displayed on it. The clog has a body made of transparent material and a hollow heel, the base of which contains a micro-incandescent lamp with an associated battery. A microswitch can be connected in series via wires to turn the lamp on and off. The area that comes into contact with the foot is covered with a reflective film, while the sides are covered to create several transparent areas with lettering through which the lamp's light shines. A miniature magnetic tape cassette with power supply and manual controls can also be inserted into the hollow body to enable sound output. US 9,228,736 B1 describes a piece of protective clothing, such as a boot, which, to improve the wearer's visibility, has at least one light source housed in an enclosure. The enclosure is integrated into the protective clothing. The protective clothing includes a translucent shield positioned over the light source housed in the enclosure. The protective clothing also has a power source functionally connected to the light source. The shield has one or more protective properties that are equal to or exceed those of the protective clothing. DE 691 10 277 T2 describes a product, in particular a shoe, ball, or fishing lure, which contains an impact sensor element made of piezoelectric polymer material. Upon impact, the material emits an electrical trigger signal to a battery-powered light or sound emission unit, which is at least partially embedded in the product. A monostable circuit within the unit supplies energy to the light or sound emission device from the battery. In some embodiments with light emission devices such as LEDs, the light is guided to an outer surface of the product via one or more optical fibers. US 7,956,476 B2 describes a system for extracting energy from footwear. The energy can be in the form of footwear movements involving the compression and decompression of chambers within the shoe. There can be a rear chamber in the heel area and an anterior chamber in the toe area. The chambers can be filled with gas, which flows in and out as the heel and toe chambers are compressed and decompressed by the walking motion of the wearer. The moving gas can flow through a pneumatic rectifier, which creates a unidirectional gas flow to drive a microturbine that rotates an electric generator or operates a pneumatic device. EP 0 121 026 A1 describes an illuminated sports shoe, particularly for running or jogging, designed to improve the wearer's safety when running in poor visibility. The shoe comprises an upper and an integrated sole and heel piece made of elastic material. A cavity is formed in the integrated sole and heel piece, adjacent to the heel area of ​​the shoe, which houses a battery or similar source of electrical energy. A light source, such as an LED, is attached to the shoe, with one light source located in the integrated sole and heel piece at the heel of the shoe and another in the upper at the toe area.An integrated circuit chip or a mercury switch is provided to cause the light source to flash when connected to the battery, and a switch is provided to selectively connect and disconnect the light source to the battery. The chip and battery can be encapsulated in elastic material to form an insert that has a press fit with the walls that define the cavity in the integrated sole and heel area of ​​the shoe. GB 2 378 118 A describes a garment or shoe comprising a chamber and a light source for illuminating the chamber. The chamber contains particles capable of scattering or reflecting light from the light source and has a window through which the effect of the particles on the light from the light source can be observed. Alternatively, the chamber includes a light-modifying device for reflecting, refracting, or diffracting the light from the light source. The light-modifying device is moved by a hydraulic system or vibrates in response to the movement of the garment. In embodiments, the light source may be one or more LEDs, which may be of different colors. Motion detection may be used to control the illumination.In one embodiment, the chamber can contain a liquid comprising water and a surfactant, and the particles can be metallic, such as glitter, or made of colored glass or plastic. GB 2 538 445 A describes a system for assisting a user in locomotion, comprising a sensor configured to detect a parameter indicating the position of the user's foot; a motor operable to provide vibration feedback in response to the sensor output signal; and a processor configured to control the vibration in direct or inverse correlation with the detected parameter such that a property of the vibration is configured to increase or decrease in response to an increase or decrease in a detected parameter or distance. The system may include a wireless communication module for sending or receiving data. The system may be in the form of footwear or as an attachment to footwear. US 6,017,128 A describes footwear designed to improve the wearer's visibility, which uses a circuit with a mechanically operated pressure switch located within the footwear to turn a lighting system on and off. The switch responds to the pressure of the wearer's foot. When the wearer lifts a foot from the ground, the lighting system is activated. When the foot is placed back on the ground, the lighting system is deactivated. The system can be deactivated by removing a power source from the circuit or by a mechanically operated deactivation mechanism. US 3,893,247 A describes shoes with illuminated parts. An electromagnetic power source is preferably arranged in a cavity in a platform sole of a shoe, and a light bulb and means for operationally connecting and disconnecting the light bulb from the electromagnetic power source are preferably arranged in a cavity in a transparent heel. The means for operationally connecting and disconnecting the light bulb from the electromagnetic power source may include a toggle switch, a manually operated three-position switch, and a charging switch if the electromagnetic power source is rechargeable. US 5 813 148 A describes shoes with optical fibers for illuminating display areas that emphasize certain features of the footwear, such as trademarks, logos, team sports, comic characters and other artistic designs that primarily serve advertising, decoration and improving the visibility of the wearer.Shoes with optical fibers for illuminating display areas comprise: one or more optical fiber panels visible through an opening, window, or transparent material in the sole, upper, or tongue of the shoe; one or more light-emitting diodes that transmit light into the optical fiber panels; components and circuitry to cause the light-emitting device(s) and the illuminated optical fiber display areas to blink intermittently, blink alternately, display alternating colors, sequence in motion, activate by pressure or movement, activate by manual switching, or any combination thereof; and batteries to power the light-emitting device and the above-mentioned components and circuitry.A control module combines the light-emitting device(s), components and circuits, and batteries in a housing that, depending on the embodiment used, is positioned in the heel, sole, upper, or tongue area of ​​the footwear. Such footwear designs include, among others, sports shoes (e.g., tennis, basketball, aerobic, cross-trainer, walking, jogging, and running shoes), casual and dress shoes, roller skates, ice skates, and ski boots. The purpose of the invention is to provide a shoe that is recognizable even under extremely adverse visibility conditions. The problem is solved by a shoe with a sole, a light source arranged on the shoe and a switch, wherein the switch is designed for actuation by applying pressure with the foot to turn on the light source, with the features according to the main claim. By attaching a light source with sufficient luminosity to the shoe, particularly on the underside or inside the shoe, especially the sole or heel, a firefighter can detect a colleague kneeling or lying on the ground during an operation in poor visibility conditions, even at very low visibility (less than 50 cm). The light emitted by the light source can be scattered by smoke particles, the sole, or the ground, so that the beam of light on the underside of the shoe becomes visible in darkness and smoke. Immobile or unconscious individuals wearing such a shoe can be located even in complete darkness and heavy smoke. The switch is designed and positioned on the shoe in such a way that it can be activated by applying pressure with the foot and without having to be touched by hand. According to one embodiment, the switch is arranged laterally in or on the sole, or on or in its underside, and is configured to be activated by stepping on the foot or by a push or impact. The push or impact can be delivered, for example, by the other foot, such as by striking the heels of two shoes together. It is also conceivable that the switch can be activated by a specific sequence of impacts on the floor. The switch can be a piezoelectric switch or a mechanical switch. The switch is electrically connected to or attached to the light source. According to a further embodiment, the shoe has a switch arranged in or on the shoe, which is configured to switch on the light source when the switch is at an angle of inclination relative to the perpendicular to the floor that exceeds a certain limit. With such a switch, it can be ensured that the light source is only switched on when the shoe is tilted, for example, when the wearer is kneeling or lying on the floor, while the light source remains off when standing or sitting. According to one embodiment, the light source is arranged on the shoe in such a way that the light source emits light from at least one location on the underside of the shoe in the direction of the front part of the sole of the shoe. This arrangement of the light source has the advantage that, when the light is switched on, no disturbing rays are emitted from the shoe when standing or walking. The light emitted by the light source is barely or not at all perceptible in the surrounding area when the shoe is standing on the ground. Only when the wearer kneels or lies on the ground, so that the underside of the shoe is visible, can the light emitted by the light source be perceived. According to one embodiment, the light source is oriented such that the emitted light is directed onto the sole at an angle of incidence of more than 70°, 75°, 80°, 85°, or 90° relative to the perpendicular to the base of the shoe or the surface of the sole. In such an arrangement, the emitted light strikes the sole at a very shallow angle, so that it is reflected or scattered by the surface structure, such as features of the sole's profile, resulting in a larger reflective or scattering area on the underside of the shoe. The light source can be located in the sole or the heel. It is conceivable that, at least on the outer surface of the sole, apart from one or more openings for the light beam or the housing of the light source, no changes to the conventional shape of the sole are necessary. If the light source is located in the heel, one or more openings can be provided at the sole joint in the heel, so that light exiting the light source or passing through the one or more openings is emitted towards the front part of the sole and strikes the sole profile structure closest to the sole joint.This area near the plantar joint, located close to the midfoot, is not or hardly deformed during the rolling motion of the foot. Therefore, the area where the light beam strikes the sole's tread pattern remains largely unchanged during walking or other foot movements that cause the sole to flex. Thus, even during movements that deform the sole, the areas of the sole's tread pattern struck by the light beam remain unchanged, preventing the light beam from being emitted unimpeded into the surrounding environment without reaching the sole. According to another embodiment, the light source is arranged on the shoe such that the emitted light strikes one or more surfaces of the sole's tread pattern and is at least partially reflected. By using reflective or transmitting materials, or combinations thereof, in the sole, reflection patterns can be created that make the sole appear brighter, thus improving the visibility of the shoe or sole. This is particularly advantageous when the wearer is kneeling or lying on the ground, so that part of the sole is visible. For example, the sole can have a profile that, in one area, resembles a lens or Fresnel lens, or a part thereof, which is illuminated by the light source and widens or scatters the light beam. Other light-guiding structures are also conceivable, such as a prism or a rod lens, which can be integrated into the sole's structure. According to yet another embodiment, one or more areas of the sole or tread surface have a reflective, light-directing, or light-scattering property. For example, areas of the sole tread structure can be manufactured, coated, or designed to be reflective, such that a diffraction effect is achieved when light from the light source strikes them. For instance, the sole, which is made of plastic (e.g., polyurethane) or rubber, could have metallic areas attached to or integrated into the sole and arranged so that they are struck by the light beam from the light source and reflected. According to another embodiment, the light source is housed in the heel. The heel may have an opening through which the light beam emitted by the light source exits the heel. The opening may be located in the joint area of ​​the sole or the sole joint. According to yet another embodiment, at least one layer of a heat-insulating or thermal insulation material is arranged between the light source and the underside of the sole. The light source can also be completely surrounded by the thermal insulation material, with an opening for light emission. In all cases, the thermal insulation material is intended to ensure that the light source retains its function even at high temperatures. According to yet another embodiment, the light source is a laser diode, an LED, or an electrically operated light-emitting film. The laser diode can be configured to emit coherent light. In very low visibility conditions and heavy smoke, the shoe remains visible only when using a laser diode due to its particularly high radiation intensity. However, it is conceivable that, due to technological advancements and the associated increase in the radiation intensity of light sources, other light sources, such as LEDs, could also be used effectively in the future. The light source can be configured to emit radiation in a spectral range that covers at least part of the visible spectrum. The radiation can also be monochromatic, with a frequency corresponding to, for example, one of the colors red, blue, or green. Depending on the light source used, the radiation can be coherent or incoherent. According to yet another embodiment, the shoe has one or more light guides in the sole area to direct the light emitted by the light source. The one or more light guides can be optically coupled to the light source. The light guide can be an optical fiber embedded in the sole material, directing light to an opening in the heel or sole, from which the light is emitted by the shoe. Using a light guide allows the light source to be positioned further inside the heel or sole for better protection. Additionally, one or more extra light sources, such as laser diodes, light-emitting films, and optical elements, such as lenses or prisms, can be arranged in or on the shoe. According to another embodiment, the shoe has an electrically operated luminescent film in at least one area on the outside. Luminescent films can be based, for example, on the technical application of electroluminescence and are also referred to as plasma films, light films, or capacitor luminescent films. Luminescent films consist of materials or material combinations that emit light when an electric field is applied. The electroluminescent material lies, electrically insulated, between two conductive and flexible layers that form the electrodes. One electrode is transparent and can consist of a plastic film coated with indium tin oxide. The second film can reflect the light. The total thickness of the luminescent film can be less than 1 mm. However, other types of luminescent films are also conceivable. According to another embodiment, the luminescent film is arranged in a transparent part of the shoe, in particular a heel counter or toe cap, the sole, the heel, or the tongue of the shoe. The electrically operated luminescent film can be embedded in a transparent injection-molded material, which is attached to the appropriate location on the shoe, such as over the heel or at the toe as a cap, or arranged on one or more sides of the shoe. For use in a firefighter's boot, the transparent injection-molded material in which the electrically operated luminescent film is contained can have heat resistance and low flammability in accordance with the standards for firefighter's boots. According to yet another embodiment, the shoe has a power supply for the light source. In one embodiment, the power supply is a battery to which the light source is connected. In yet another embodiment, the battery can be inductively charged. The battery can be embedded or cast into the material of the shoe, in particular the sole. According to another embodiment, the power supply is located on the upper or tongue of the shoe, particularly in a protector positioned in front of the tongue. Certain shoes, such as firefighter boots, may have a protector on the front in the shin area, made of a durable material, especially plastic, which is attached or held in front of the tongue of the shoe or boot. The battery can be part of the protector or integrated into it. Such a battery arrangement has the advantage that the battery is separate from the actual shoe or boot and does not come into contact with the wearer's body. Furthermore, such a battery can be easily replaced. According to another embodiment, the shoe has an energy-generating device, such as an energy harvester, which is designed to generate electricity through movement, such as the rolling motion of the shoe or the flexing of the sole while walking, and to power the light source. The energy-generating device can be mechanical or based on the technical application of the piezoelectric effect. For example, a piezoelectric energy harvester can be used as the energy generator, which generates electricity when the sole flexes during walking or when the foot strikes the ground. Alternatively, a mechanical energy-generating device can also be used in the shoe. Further features, properties, and advantages of the invention will become apparent from the following description of the invention with reference to an exemplary embodiment and the accompanying drawing. In the drawing, Fig. 1 shows a firefighter's boot in which a light source is used; and Fig. 2 shows an exploded view of the boot with light sources and the corresponding electronics for operating the light sources. One embodiment of the invention is described below with reference to the figures. Figure 1 shows a side view of a shoe 1, in particular a firefighter's boot, which has a laser module in the heel with a laser diode 20 that is received or embedded therein. Figure 2 shows an exploded view of the shoe with the laser module and electronics for operating the light sources 20, 40. The laser diode 20 is arranged at a front end of the laser module, which has a plastic housing 110. A line optic 100 is arranged in front of the laser diode 20, which splits a light beam 60 emerging from the laser diode 20 into strips. The laser module serves, on the one hand, to supply power to the laser diode 20, but can also, on the other hand, be provided to supply power to a second light source 40, which is formed by an electrically operated luminescent film that, in the embodiment shown, is arranged in the area of ​​the heel of the shoe.For power supply, the light-emitting film 40 is connected to the laser module via conductive foam 80 and cutting contacts 90. A charging coil 120 can also be located under the laser module, allowing the laser module, and in particular any battery contained therein, to be inductively charged. However, other battery arrangements are also conceivable, such as in the upper or tongue of the shoe. A layer of heat-insulating material (not shown) is arranged between the laser diode 20 and the underside of the sole to protect the laser module and the laser diode 20 from damage caused by intense heat. The laser module and the laser diode 20 are located under an insole 70 of the shoe, preferably centrally in the heel, and are embedded in the heel of the shoe by injection molding, together with the cutting contacts 90 and the conductive foam 80. The laser diode 20 is located near the sole joint.At the front of the heel, at the sole joint, there is a corresponding opening for light emission, through which the light beam 60 emitted by the laser diode 20 exits at a relatively shallow angle of approximately 5–30°, in particular 10–20°, with respect to the surface of the sole and the standing surface of the shoe. The light beam 60 preferably strikes the structure of the sole profile at a grazing angle in the area of ​​the sole closest to the sole joint and can be scattered by the surface of the sole profile structure. For this purpose, metallic areas can be provided in the sole profile by which the light beam 60 is reflected or scattered. However, the light beam 60 is preferably not emitted directly, i.e.,The light beam 60 is emitted unimpeded into the surroundings and does not strike areas of the sole profile, thus preventing people in the vicinity from being struck or irritated by the light beam 60 when the shoe sole is not on a surface. The light-emitting diode 20 and the light beam 60 are preferably arranged and aligned such that the light beam 60 also strikes the sole profile when the sole is bent, for example, when the foot rolls or when the wearer kneels. This is particularly important because the areas of the sole profile structure that the laser beam strikes remain essentially unchanged in their position relative to the heel when the sole is bent, since the bending of the sole occurs in a front section of the zonal profile (in the area of ​​the metatarsal bones of the foot), which is located in front of the area of ​​the profile that the light beam 60 from the laser diode 20 strikes.Furthermore, a switch 10 is arranged in the shoe near the rear part or in the heel. This switch can be activated by a push or strike and can be used to switch the laser diode 20 on or off. The push to switch on the light source 20 can be achieved by striking the heels of two shoes together. The switch 10 is also configured so that the light source 20 is only switched on when the shoe, or the part of the shoe containing the switch 10, is tilted or inclined in a vertical plane and exceeds a predefined angle relative to the perpendicular to the ground. The angle by which the switch must be moved relative to the shoe's resting position on the ground can be between 10° and 135°. For example, the switch can be configured so that the light source 20 is switched on when the switch is moved at an angle of approximately 10°.The switch is tilted 90°, which is the case, for example, when the wearer of the shoe is kneeling on the ground. Furthermore, it is conceivable to equip switch 10 with only one of the functions, i.e., either that the switch can only be activated by a push or blow, or only by tilting. Furthermore, an energy generation device 30, such as an energy harvester, is optionally arranged in the shoe, particularly in the heel or in the area of ​​the metatarsal bones of the foot, with which electricity can be generated to power the light source. The energy harvester generates electricity based on the piezoelectric effect as soon as pressure is applied to the lower part of the sole or heel. Additionally or alternatively, the energy generation device can be designed so that electricity can be generated when the sole flexes, as during the natural rolling motion of the foot. The energy generation device 30 can also function as an electric generator that is mechanically operated during walking. The boot can, in addition to or as an alternative to the battery in the laser module, have a battery 50 integrated into a shin protector located in front of the boot's tongue and held in place, among other things, by the boot's lacing. Positioning the battery 50 within the protector has the advantage that it does not come into contact with the wearer's body, thus protecting them from injuries caused by heat or liquids emitted from the battery. The battery 50 can be a lithium-ion battery charged by the power generation unit 30. Alternatively, or additionally, the battery can be charged via a cable-connected charger or an inductive charger using the charging coil 120. The battery 50 is connected to the power generation unit 30, the laser diode 20, and the light-emitting film via cables (not shown) located in the upper. The switch 10 is also connected to the laser diode 20, allowing it to be switched on and off. Furthermore, optical fibers (not shown) can be arranged in the sole and, in particular, in the heel, which guide light from the laser diode 20 to one or more exit openings in the heel. It is conceivable to arrange the laser diode 20 in the heel and guide light from the laser diode via optical fibers to exit openings in the heel and / or in the sole. The position of the laser diode 20 in the heel can be chosen such that, as shown in the figures, it is located approximately in the middle of the heel in a vertical plane of symmetry. The radiation from the laser diode 20 is emitted directly from the heel through an opening towards the sole.Alternatively, the laser diode 20 could also be arranged in a different orientation within the heel, with the emitted radiation being guided by one or more light guides, such as optical fibers, glass rods, or transparent rods, to one or more openings in the heel and from there emitted towards the sole and / or in other directions radiating from the heel. The opening(s) containing optical fibers or light guides could be located on the heel side of the sole joint or on the heel facing outwards. It would also be conceivable to have one or more openings containing optical fibers or light guides facing downwards on the heel. In addition to the luminescent film 40 described above, further light sources, such as one or more additional electrically operated luminescent films or electrically operated light fields, can be arranged on the shoe in specific areas of the upper and sole. The luminescent films or electrically operated light fields can have a specific geometric shape, such as a circle, a band, a rectangle, a line, a point, a bar, a cuboid, an ellipse, or any other arbitrary shape. The luminescent films or electrically operated light fields are connected to one or more of the laser module, the battery 50, or the power generation unit 30.The one or more electrically operated light-emitting films are embedded in a transparent injection-molded material, which is attached to the shoe at the appropriate location, such as above the heel or at the toe as a cap, or positioned on one or more sides of the shoe. The transparent injection-molded material can be designed so that the functionality of the light-emitting film is maintained even under intense heat, such as that frequently encountered during firefighting operations. Numerous modifications can be made to the described invention and the illustrated embodiments without leaving the scope of the invention. Reference symbol: 1 boot 10 switch 20 laser diode 30 power generation unit 40 luminescent film 50 battery 60 light beam 70 insole 80 conductive foam 90 cutting contacts 100 line optics 110 plastic housing with PCB 120 QR charging coil

Claims

Shoe with a sole, a light source (10, 40) arranged on the shoe and a switch (20), wherein the switch (20) is designed to be actuated by applying pressure with the foot to switch on the light source (10, 40), wherein the light source (10) is arranged on the shoe such that the light source (10) emits light from at least one location on the underside of the shoe towards the front part of the sole of the shoe, wherein the emitted light strikes one or more surfaces of the structure of the profile on the outside of the sole and is at least partially reflected thereon, wherein the light is not emitted directly into the environment without striking areas of the sole profile. Shoe according to claim 1, wherein the switch (20) is arranged on the shoe such that the light source (10) can be switched on and off by pressure exerted on the shoe from the outside. Shoe according to one of claims 1 or 2, wherein the switch (20) is configured to turn on the light source (10, 40) when the shoe or a part thereof is inclined in a vertical plane and exceeds a predefined angle relative to a perpendicular to the ground. Shoe according to one of the preceding claims, wherein the light source (10) is arranged on the shoe such that the emitted light is directed onto the sole at an angle of incidence of more than 70°, 75°, 80°, 85°, 90° relative to the perpendicular to the base of the shoe. Shoe according to one of the preceding claims, wherein one or more areas of the surface of the sole have a reflective or light-beam-directing property. Shoe according to one of the preceding claims, which has a power supply (50) for the light source (10, 40). Shoe according to claim 8, wherein the power supply (50) is a battery that can be charged inductively. Shoe according to claim 6 or 7, wherein the power supply (50) is arranged on the upper or tongue of the shoe, in particular in a protector of the shoe arranged in front of the tongue. Shoe according to one of the preceding claims, comprising an energy generation device (30) which is configured to generate electricity by movement or deformation of the shoe and to supply the light source (10, 40) with electricity. Shoe according to one of the preceding claims, wherein the light source (10) is received in the heel and the heel has an opening through which the light beam emitted by the light source (10) exits the heel. Shoe according to one of the preceding claims, wherein at least one layer of a heat-insulating material is arranged between the light source (10) and the material of the sole. Shoe according to one of the preceding claims, wherein the light source (10, 40) is a laser diode, an LED or an electrically operated light-emitting film. Shoe according to one of the preceding claims, wherein the shoe has one or more light guides for guiding the light emitted by the light source (10, 40), wherein the one or more light guides are coupled to the light source (10, 40). Shoe according to one of the preceding claims, wherein the light source (40) is a light-emitting film arranged on one or more parts of the shoe comprising the underside, back, outside and upper of the shoe. Shoe according to claim 14, wherein the luminescent film is arranged in a transparent part of the shoe, in particular a heel cap or toe cap, the sole, the heel or the tongue of the shoe.

Images