FR2911946A1 - Light device for signaling and/or lighting road, has protection envelope arranged in manner to house light source i.e. LED, such that light is diffused from outer surface of material substrate i.e. coating - Google Patents

Abstract

The device has a material substrate i.e. coating (17), surrounding a set of protection envelopes (11), where each protection envelope is arranged in a manner to house a light source i.e. LED (1), such that the light is diffused from an outer surface of the substrate. The coating is applied on a support around the protection envelopes so as to diffuse the light from the outer surface of the covering, where the coating material includes resin, polymer and elastomer. The envelopes are sealed opposite to the material at fluid state, and the sources are mounted on a metallic plate (3). An independent claim is also included for a method for fabricating a light device.

Description

EIFFAGE30.FRD.wpd 1 Luminous device especially for the

  signage, ornament and lighting_

  The invention relates to a light device, to a method of manufacture and to use of such a device.

  Many light devices are known, in particular for signaling.

  For example, many signs, direction and / or indicators are now bright, especially in the road. This is a result of a desire to improve road safety by making the various panels clearly visible, even in rainy weather, fog, both night and day.

  Light devices are not limited to light panels. In urban environments, for example, there are many lighting or illuminated devices.

  In general, to provide any light diffusion at the level of urban or road infrastructures requires the installation of a particular device reported on the infrastructure.

  Such an installation can be delicate, unsightly, fragile, or expensive.

  In the particular field of road signs, for example, luminous road signs are generally installed along the roadside. These panels are expensive and fragile. They can be degraded frequently.

  More generally, many fields are demanding practical, low cost light devices that can be implemented very simply and are resistant. We can cite 20 25

  2 for example, the broadly defined area of the building, including in particular the interior layout, for example of offices, apartments, houses, halls, car parks and the like, or the field of exterior landscaping including among others the terraces, private areas or outdoor areas. We can also mention the field of roads, in the broad sense also, including the realization of outdoor parking lots, squares, squares, roads, road infrastructure and the like.

  The Applicant has set itself the goal of improving the situation and making lighting devices as practical, inexpensive, resistant and effective as possible.

  To do this, the Applicant proposes a light device which comprises a substrate of material surrounding a plurality of protective envelopes, each protective envelope being arranged to accommodate at least one light source, so that light is diffused from an outer surface of the substrate.

  As will be seen further, such a device has, among other things, the desired benefits. Optional features of the device according to the invention, complementary or substitution, are set out below.

  The material substrate consists of a coating of material applied to a support around the plurality of protective shells, the light being diffused from an outer surface of the coating.

  The protective sheaths are sealed with respect to said fluid-state material. The device comprises a plurality of electric light sources fixed on said support, the electric light sources being connected to each other by means of electrical junction means. - Said support is arranged to isolate the electrical junction means of the material coating.

  Said support comprises a support plate, advantageously at least partially metallic.

  - The material substrate is constituted by a slab of material in which is drilled a plurality of orifices shaped so as to each receive an envelope. - The device further comprises a plurality of translucent or transparent plugs arranged to close the upper openings of the protective casings.

  The translucent or transparent plugs and the protective envelopes and the light sources are each made in the form of a light module.

  The translucent or transparent plugs and the protective envelopes are in one piece.

  - The light sources include light-emitting diodes.

  The coating material comprises a bituminous product, concrete, resin, a polymer, an elastomer or the like.

  The Applicant also proposes a method of manufacturing a light device according to the invention, comprising the steps of: i) providing a plurality of protective envelopes, each protective envelope being able to accommodate at least one source ii) providing a substrate of material for surrounding the plurality of protective casings; iii) providing at least one light source in each of the plurality of protective casings so that light can be diffused from a outer surface of the substrate. Optional features of the process according to the invention, complementary or of substitution, are set out below:

  A slab of material is provided as a substrate, said slab of material being pierced with a plurality of orifices, each of the orifices being shaped to receive a protective envelope.

  The plurality of protective shells are sealed against a coating material in a fluid state, and are disposed on a support, and then a coating of material is applied to the support around the plurality. protective envelopes as a substrate. In step iii), at least one light source is introduced into a protective envelope, and step iii) is conducted prior to step ii).

  The method comprises a step iv) of placing translucent or transparent plugs on the protective envelopes.

  Step ii) is carried out after step iv), and in step ii), the material coating is cast so as to flush a lower portion of the transparent or translucent plugs.

  Steps i) and iv) are carried out simulatenly by putting in place a one-piece assembly comprising an envelope and a plug.

  Steps i), iii) and iv) are carried out simultaneously by the introduction of a monoblock module comprising an envelope, a plug and at least one light source.

  - Step iv) is conducted after step ii), and the material coating is cast so as to flush with an upper portion of the protective casings. - The method comprises a step prior to step ii) of providing a form around all of said plurality of protective envelopes.

  The Applicant finally proposes a use of the device according to the invention in the production of a portion of floor covering, constituanat for example a road signaling device or an ornamental device.

  Other features and advantages of the invention will be apparent from the following detailed description and the accompanying drawings, in which:

  FIG. 1 represents a first exemplary embodiment of a device according to the invention, seen in section along a line I-I of FIG. 2,

  FIG. 2 is a plan view of the device of FIG. 1,

  FIG. 3 is a cross-sectional view of a second exemplary embodiment of a device according to the invention; FIG. 4 is a cross-sectional view of a third embodiment of a device according to FIG. FIG. 5 is a cross-sectional view of the device of FIG. 4, for a particular use,

  FIGS. 6 to 9 are examples of elements that can be implemented in a device according to the invention, and FIG. 10 is a cross-sectional view of a fourth embodiment of a device according to FIG. invention.

  The accompanying drawings may serve not only to supplement the invention, but also to assist in its definition, as appropriate.

  The invention is described using the following four examples.

First example of realization

  Reference is made to FIGS. 1 and 2. A plurality of light-emitting diodes 1 are attached to a metal plate 3 in a selected distribution. Here, the diodes are arranged aligned with each other in two rows. The diodes 1 of the plate 3 are interconnected by electrical junction wires 5, two additional wires 7 can be provided for the subsequent electrical connection of the plate 3.

  The plate 3 is provided with holes 9 corresponding to the 35 locations of the diodes 1 so as to allow the passage 0 (of the wires 5. The wires 5 are situated mainly on the side of the plate 3 opposite the side receiving the diodes 1.

  Generally cylindrical protective sheaths 11 are arranged on the plate 3 so that each diode 1 is housed inside an envelope 11. Optionally, several diodes 1 could be housed inside the same envelope 11. 11 envelopes are sealed vis-à-vis the asphalt in the fluid state and are arranged on the plate 3 so that fluid asphalt can not penetrate into a casing 11 by passing between the envelope 11 and the plate 3.

  The envelopes are here made of polyethylene, for example of black color.

  One or more plates 3 thus equipped may be arranged on a destination surface 13, for example a portion of a traffic lane or sidewalk, dug and covered with kraft paper (not shown). Here, only one plate 3 is disposed on the surface 13.

  When several plates 3 are provided, they can be arranged so as to form a pattern. It will be preferred in this case to provide regular polygon-shaped plates 3 so that it is easy to arrange the plates 3 side-by-side to cover a surface. It is understood that the plates could also be arranged to cover the entire area of destination. As the case may be, the pattern may be drawn on the paper to facilitate the arrangement of the plates 3 relative to one another.

  The plates 3 are fixed to the surface 13, for example by rivets 15. Different fixing means could be provided depending on the applications and the characteristics, in particular mechanical, of the destination surface 13.

  The wires 7 of the plates 3 are electrically connected to each other either by wire or by means of terminal blocks.

  Hot asphalt is poured to a flush with an upper edge of the envelopes 11 around them, forming a coating 17. In other words, the coating 17 fills the spaces between the envelopes 11. Once poured , the hot asphalt can be smoothed, for example using a spatula.

  Stoppers 19, here made of toughened glass, of a shape adapted to the protective casings 11 are inserted in these casings 11 until they come flush with the upper edge of the protective casing 11.

  The son 7 of the plates 3, or the terminal block (not shown) where applicable, are connected to a DC generator 20 (not shown), preferably remote from the surface 13. The son 7 can be buried in a groove 23 arranged between the surface 13 and the generator.

  When the asphalt has solidified, the device may be used, for example as road signs on the ground. Light is then diffused from the face 21 of the coating 17.

  It will be understood that the distribution of the diodes 1 on a plate 3, and / or the arrangement of the plates 3 relative to one another can be chosen according to the signaling that one wishes to make appear (arrow, turn, indication speed, for example).

  The asphalt can be cast in such a way that there is practically no difference in level between the device and (X

  9 of the upper edges delimiting the surface 13. Of course, it can be made that such a difference in level exists, if this is desirable.

  The Applicant has made a prototype of the device of this first example using 18 metal plates one millimeter thick, 2 meters long and 10 centimeters wide, on which the diodes have been arranged in a network and regularly spaced from each other by about 15 centimeters. This prototype was intended for a surface of 10 meters by 10 meters. The cylindrical envelopes had a height of 3 centimeters so that the asphalt was poured so as to form a coating 3 centimeters thick. The diodes were white.

  Second Exemplary Embodiment Referring to FIG.

  Aluminum plates 27 are equipped with light emitting diodes 1, similarly to the first embodiment.

  Protective envelopes 29 provided with transparent plugs 31 are arranged on the diodes 1. Each envelope and its plug are made of a set 33 made of material, or one-piece, for example polycarbonate. The plates 27 are arranged on a destination surface 35 delimited by a formwork 37. The formwork 37 can be made using modular formwork elements.

  The plates 27 are electrically connected to one another by means of sealed terminal blocks (not shown).

  Self-compacting concrete is poured onto the plates 27 around the protective shells 29 and flush with the upper surface 39 of the plugs 31 so as to form a coating 41. The concrete may be smoothed, for example at the using a spatula.

  When the concrete has set, the formwork 37 can be removed.

  The Applicant has made a prototype for a circular surface of 50 square meters using 4 plates 3 millimeters thick, 2 meters long and 10 centimeters wide, equipped with envelopes 5 centimeters in height. and diodes of red color, the diodes being arranged in array and spaced from each other by about 25 centimeters.

Third example of realization

  Reference is made to Figures 4 and 5.

  A formwork (not shown) is made, for example metal material.

  A metal plate 43 is equipped with light-emitting diodes 1 arranged in a chosen pattern, similarly to the first and second exemplary embodiments. The diodes 1 are housed inside cylindrical protective casings 45, for example polyethylene.

  Kraft paper (not shown) is disposed at the bottom of the formwork, and the plate 43 is positioned on this paper.

  Hot asphalt is poured on until flush with the upper edge of the shells 45, around them, so as to form a coating 47. The hot asphalt may be smoothed, for example with the aid of a spatula. o (

  Translucent plugs 49 are inserted into the envelopes 45 to the extent of hot asphalt. When the asphalt has solidified and cooled, the formwork can be removed.

  This produces a product plate 51 equipped with diodes 1, envelopes 45 and an asphalt coating 47, and which can be deposited on a destination surface 53 excavated.

  The electrical connection wires 55 of the product plate 51 are connected to a DC generator (not shown) remote from the destination surface. As before, the son 55 can be buried in a kerf 57.

  When several plates produced 51 are arranged side by side, a joint can be made between two neighboring edges by heating the asphalt coatings 47 of the two adjacent product plates 51, for example with the aid of a torch. FIG. 5 shows a similar join 59 made between the edges of a product plate 51 and the edges delimiting the surface 53.

  The Applicant has made a prototype intended to cover an area of 5 meters in length and 1 meter in width, dug to a depth of 3 centimeters using 5 square plates of 1 meter side made from plates of 1 meter on the side and 30 millimeters thick on which white diodes have been distributed in a network so as to form a square pattern and spaced from each other by about 10 centimeters. The envelopes had a height of 35 millimeters. The coating was cast to a thickness of 30 millimeters. The plates were arranged side by side.

  The plate produced 51 or the plates 3 and 27 may have various shapes: FIG. 6 represents a product plate 51 of octagonal shape, FIG. 7 represents a square plate 27, FIG. 8 represents a circular plate 3 and FIG. a triangular product plate 51. When these plates are to be arranged relative to each other, for example to cover a given surface, it may be preferable plates shaped regular polygons. On these plates, the arrangement of the light sources can be varied. In the examples of FIGS. 6 to 9, the diodes 1 have been evenly distributed over the entire surface of the plates, but it will be understood that the distribution of the light sources itself could represent a pattern.

  Fourth Exemplary Embodiment Referring to FIG.

  Here, the light device 53 comprises a slab 55 of false ceiling type, that is to say intended to be integrated in a ceiling, for example by means of a metal structure 57 20 capable of maintaining said slab suspended.

  The slab can be made of any material usually used for the production of this type of slab, for example plaster, chipboard or any material generally used in the manufacture of ceilings and false ceilings.

  The slab 55 is pierced with a plurality of holes 59 arranged in a chosen arrangement. For example, the holes may be distributed in a regular grid-like pattern, each hole being arranged at a distance from a neighboring hole, or from each of the adjacent holes, identical over the entire slab, or organized in a particular pattern.

  In each of the holes 59 is housed an illumination module 61 comprising a lamp 63, for example, light-emitting diodes, a cylindrical envelope 65 surrounding said lamp (and supporting it), and a plug 67 closing a end of the envelope 65.

  The envelope 65 is for example similar to the modules described in Figure 1 (reference 11). The casing 65 may optionally have, at its free end, intended to receive a stopper 67, a retaining edge 68 participating in maintaining the stopper 67 by elastic deformation of the flange 68.

  The plugs 67 may comprise optics chosen according to a desired light effect. For example, said optics may be chosen so as to obtain as homogeneous a scattering of the light as possible, in this case it will be possible to use lenses of the divergent lens type, or on the contrary so as to establish a more intense illumination of the light. a chosen area under the false ceiling, for example by the use of optics of the directional focusing lens type: in both cases, it is the choice of the angle of the light beam coming out of the optics that will bring the desired result.

  Here, one end of the plug 67 has a shape corresponding to the shape of the diode 63 and comes substantially in contact or in the vicinity of this diode. This particular shape of the plug 67 allows optimized light scattering.

  Junction wires 69 connect the lamps 63 to each other, wire to wire or with the aid of a terminal block, or by means of a printed or screen printed circuit acting as a mechanical fastener and as an electrical connection between the lamps. .

  Light can thus be diffused from an outside face 71.35

  In this embodiment, the luminous device 53 makes it possible to produce a false ceiling whose lighting is integrated as soon as the element, commonly called a "slab", of false ceiling is created. Here, the device also allows to have at the ceiling only the lighting part of the lighting installation. The control part of this installation, powered by industrial voltage, can be deported and fixed away from the ceiling structure, which has considerable advantages in terms of cost and safety. In addition, only lightweight structures and wiring supplying the device at low voltage, or very low voltage safety or current, are found at the false ceiling.

  The device according to the invention allows the diffusion of light from an upper surface of the coating, in particular in the embodiments 1 to 3, or from an outer surface of the slab, in the fourth embodiment. This device is simple to implement, and it easily integrates with its environment.

  This device, particularly in embodiments 1 to 3, is suitable for the construction and / or development of infrastructure and signaling, particularly road. For example, it makes it possible to carry out a signaling on the ground by removing part of the existing roadcover in order to place one or more of the luminous devices according to the invention, in which the light sources are arranged in a chosen pattern which may, for example, recall a road sign or any other indication, for example an arrow indicating a direction. The light devices then constitute a portion of the road surface. The pattern may, depending on the case, be constituted by a single device or by several devices arranged relative to one another in a suitable manner. Light devices according to the invention ar

  15 can also be expected from the initial achievement of the road surface.

  The device according to the invention is also well suited to the production of ornaments, especially at ground level, in that it makes it easy to arrange light sources in a chosen pattern. For example, one or more devices can be implemented on the forecourt of a building, on terraces, driveways, in a parking lot, in the lobby of a building or other. An ornamental device made using devices according to the invention can of course have a practical aspect. For example, provision may be made to provide devices according to the invention so as to border a private driveway leading to a garage entrance, thus combining the aesthetic and practical nature of the invention.

  For example, an ornamental device can be made so that the pattern can represent the logo of a company and the device according to the invention implemented at the entrance of a private parking belonging to said company or in the hall of an establishment of said company, on the ground but also on the walls, that is to say disposed substantially vertically, or the ceiling. For vertical applications, concrete or the like may be used as a coating material.

  The device can still provide lighting and / or signage in a parking lot, especially on the ground.

  The device may also, particularly in embodiment 4, serve as interior lighting for dwellings, offices or the like. It can, as in the other embodiments, be used in a device

  Ornamental, in a lighting device or in a guiding and / or signaling device.

  In any case, the devices according to the invention are easily integrated into their environment, and in an aesthetic way, in particular, because the material filling the spaces between the light sources can be chosen according to this environment. In particular, when the environment consists of a bituminous coating, a similar or even identical material can be used.

  The embodiments described above implement for the most part light-emitting diodes as light sources. These light-emitting diodes are advantageous in that they have a small footprint and a long life (typically between 50 000 and 100 000 hours of operation). These diodes can be powered by an electrical current modulated in frequency and or amplitude, thus limiting the energy expenditure generated by the continued operation of the devices. This is particularly interesting in applications that require almost permanent operation as applications in the field of signaling, especially road. In some applications, it is possible to use, as mechanical support, diodes, of the printed circuit of the "SMI" type allowing heat transfer for the dissipation of the component.

  In addition, these diodes are of low cost and can be delivered as electronic components which can easily be implemented.

  It will be understood, however, that different light sources may be employed, particularly depending on the intended application. The characteristics of the light scattering obtained may require the use of certain types of light sources or exclude others. For example, the first exemplary embodiment can be intended to be used as road signs, where the function of the light sources is mainly to create luminous visual signals rather than to realize a lighting of the roadway. When true lighting has to be obtained some light sources may be more suitable.

  Therefore, other light sources such as optical fibers, halogen bulbs, filament bulbs, incandescent lamps, electric discharge lamps and the like can be used in the devices according to the invention. In some cases, autonomous light sources could also be provided.

  Fluorescent lamps could also be employed in the devices according to the invention, as far as their size permits.

  Light sources of different colors can be used, in particular according to the desired signaling.

  In Examples 1 to 3, the electrical junction wires 5 were arranged to be insulated from the liner 17 by the plate 3 (first example). It will be appreciated that such isolation may be useful for other elements than electrical wires, for example optical fibers when these are used as light sources. If necessary, electrical wires could be placed in the coating (that is, the coating could be cast directly onto these wires), or this coating could be cast at a temperature that would not degrade the wires, or that the son would be provided with a particularly resistant sheath. Thus, son 5munis Teflon protective sheath could for example be embedded in the asphalt.

  Similarly, the use of concrete and asphalt as coating materials has been described. These materials are advantageous in that they are commonly used in the field of the intended applications. In addition this allows to install the device on existing tracks or buildings without breaking material, otherwise the installation could have an unsightly or dangerous leveling.

  However, it will be understood that, in general, any material that can be cast can be used for embodiments 1 to 3, such as natural, artificial or synthetic resins, and more particularly any material usually used in roadways. urban, public and private developments, civil engineering and building, such as bituminous materials or cement concretes, for example.

  For the embodiment 4, it is understood that any machinable material could be used to realize the slab 55. By machinable material is meant here mainly a material in which it is possible in one way or another to realize holes.

  In examples 1 to 3, as well as in outdoor installations, the device according to the invention must ensure a sealing of the light source against harmful external agents, in particular in liquid form, such as water, uric acid, de-icing agents, disinfectants, chlorinated or not, waxes, surfactants, fatty acid esters, etc. for the road for example. This sealing is mainly ensured by plugs and envelopes. In some uses of ot

  19 device, plugs and / or shells must also be shock resistant.

  The plugs may have different shapes, for example polygonal, circular or oval, with a planar, concave or convex upper face, protruding or flush with the upper surface of the coating. The shape of the caps may, where appropriate, be adapted to the characteristics of the desired light diffusion. Thus, this shape can be accurately calculated and designed according to the desired light characteristics. For example, the caps may be of different colors, transparent or translucent. These plugs can be made of different materials, for example glasses, preferably tempered glasses, plastics, especially polycarbonates, elastomers and thermosetting materials. Various means of fixing the cap on the casing can be envisaged provided that this fixation fulfills the requirements, in particular the requirements relating to the seal. For example, the caps can be screwed or clipped onto the envelope. They can also be made in one piece with an envelope.

  Protective envelopes may take different forms, for example hemispherical or parallelepipedic. They can be made of organic or mineral materials. They can be made integrally with the plugs. Modules each comprising an additional envelope, a light-emitting diode and a plug could be provided, the modules being arranged to be housed in the protective envelopes surrounded by the coating.

  Although a metal plate has been described as a support, it is understood that any other type of plate, or support, could be used in accordance with the applicable applications.

  20 tions envisaged. In particular, it could be envisaged to avoid, under certain conditions, a support plate, or in other words to directly use the soil or the destination surface as a support.

  The device according to the invention is flexible, polymorphic. It can be integrated into new structures as well as existing infrastructures. In addition, particularly in the embodiments of the product plates 51 and the slab-type device 53, they can be arranged in any inclinations with respect to the vertical or the horizontal.

  The invention is not limited to the embodiments described above, but encompasses all the variants that may be considered by those skilled in the art within the scope of the claims below.

Claims (13)

claims   Light device, characterized in that it comprises a material substrate (17; 41; 47; 55) surrounding a plurality of protective envelopes (11; 29; 45; 65), and in that each envelope of protection is arranged to receive at least one light source (1; 63) so that light is scattered from an outer surface of the substrate (21; 71).   Light device according to claim 1, characterized in that the material substrate (17; 41; 47) consists of a coating of material applied on a support around the plurality of protective shells (11; 29; 45), the light being diffused from an outer surface of the coating (21).   3. Device according to one of claims 1 and 2, characterized in that the protective shells (11; 29; 45) are sealed against said material in the fluid state.   4. Device according to one of the preceding claims, characterized in that the protective shells (11; 29; 45) are made of a material chosen so that the shells, in particular, are watertight with respect to external agents in liquid form.   5. Device according to one of claims 2 to 4, characterized in that it comprises a plurality of electric light sources (1; 63) fixed on said support (3; 27; 43), the electric light sources being connected. to each other by electrical connecting means (5; 69).   6. Device according to claim 5, characterized in that said support (3; 27; 43) is arranged in such a way as to isolate 21 where the electric junction means (5; 69) of the material coating (17; 41; 47).   7. Device according to one of claims 2 to 6, caracté-5 ized in that said support (3; 27; 43) comprises a support plate (3; 27; 43).   8. Device according to claim 7, characterized in that the support plate (3; 27; 43) is at least partially metallic.   9. Device according to one of claims 2 to 8, characterized in that said support (3; 27; 43) has a generally flat shape and a contour generally in the form of a regular polygon.   10. Device according to claim 1, characterized in that the material substrate (55) consists of a slab of material (55) in which is pierced a plurality 2C orifices (59) shaped so as to each receive a envelope (65).   11. Device according to claim 10, characterized in that the material slab (55) is a slab adapted to be used as false ceiling. Device according to claim 10, characterized in that the material slab (55) is a slab adapted to be used as an element to be disposed in a substantially vertical manner. 13. Device according to one of the preceding claims, characterized in that the protective shells (11; 45; 65) have an upper aperture flush with the material substrate (17; 41; 47; 55). 0 (14) Device according to one of the preceding claims, characterized in that it further comprises a plurality of translucent or transparent plugs (19; 31; 49; 67) arranged to close off the upper openings of the envelopes protection device (11; 29; 45; 65). 15. Device according to claim 14, characterized in that the translucent or transparent plugs (19; 31; 49; 67) are arranged in such a manner as to seal the casings protection device (11; 29; 45; 65). 16. Device according to one of claims 14 and 15, characterized in that the translucent or transparent plugs (67) and the protective casings (65) and the light sources are produced. each in the form of a light module (61) 17. Device according to one of claims 14 and 15, characterized in that the translucent or transparent plugs (31; 67) and the protective covers (29; 65) are in one piece 18. Device according to claim 14 to 16, characterized in that the translucent or transparent plugs (19; 31; 49; 67) are arranged to be clipped or screwed into the protective casings (11; 29; 45; 65). 19. Device according to one of claims 14 to 18, characterized in that the caps (19; 31; 49; 67) translucent or transparent are made of glass or polymer. 20. Device according to one of the preceding claims, characterized in that the protective casings (11; 29; 45; 65) are of generally cylindrical shape. Device according to one of the preceding claims, characterized in that the light sources (1) comprise electroluminescent diodes. 22.Dispositif according to claim 21, characterized in that the light emitting diode (1) is carried on a SMI type circuit. Device according to one of the preceding claims, characterized in that the light sources (1; 63) comprise optical fibers, incandescent lamps, electric discharge lamps, fluorescent lamps or the like. 24. Device according to one of the preceding claims, characterized in that the coating material comprises a bituminous product. 25. Device according to one of the preceding claims, characterized in that the coating material comprises concrete, resin, a polymer, an elastomer or the like. 26. A method of manufacturing a light device according to claim 1, characterized in that it comprises the following steps: a. providing a plurality of protective shells (11; 29; 45; 65), each sheath being adapted to receive at least one light source (1; 63), 30b. providing a material substrate (17; 41; 47; 55) for surrounding the plurality of protective shells (11; 29; 45; 65), c. providing at least one light source (1; 63) in each of the plurality of shields 35 (11; 29; 45; 65) so that light can be scattered from an outer surface of the substrate (21; 69) .27. A method according to claim 26, characterized in that - in step b., A slab of material (55) is provided as a substrate, said slab of material (55) being pierced with a plurality of orifices (69). ), each of the orifices being shaped to receive a protective envelope (65). 28. A method according to claim 26, characterized in that in step a., The plurality of protective shells (11; 29; 45; 65) is sealing against a coating in the fluid state, and is disposed on a support (3; 27; 43), 15 - in step b. a material coating is applied to the support (3; 27; 43) around the plurality of protective shells (11; 29; 45; 65) as a substrate. 29. A method according to claim 28, characterized in that in step c., At least one light source (1) is introduced into a protective envelope, and - step c. is conducted prior to step b. 30. Method according to one of claims 28 and 29, characterized in that: step c. is preceeded in step a. in step c., a plurality of light sources (1) are arranged on the support (3; 27; 43); in step a), each light source (1) is housed in an envelope of protection (3; 27; 43); 31. Method according to one of claims 26 to 30, characterized in that it comprises a step of: 35 01 26 d. placing translucent or transparent plugs (17; 31; 49; 61) on the protective shells (11; 29; 45; 65). 32. The method of claim 31 attached to one of claims 28 to 30, characterized in that step b. is carried out after step d., and in that, in step b., the material coating is cast so as to be flush with a lower portion (39) of transparent or translucent plugs (31). 33. Method according to one of claims 31 and 32 attached to one of claims 27 to 29, the steps a. and D. are conducted simulatenement by the establishment of a one-piece assembly (33) comprising an envelope (29) and a plug (31). 34. The method of claim 33, characterized in that steps a., C. and D. are conducted simultaneously by the implementation of a monoblock module comprising an envelope, a plug and at least one light source. 35. Method according to one of claims 31 to 34 attached to one of claims 27 to 29, characterized in that step d. is conducted subsequent to step b, and in that the material coating is cast so as to flush an upper portion of the protective casings. 36. Method according to one of claims 28 to 35, characterized in that it comprises a step prior to step a consisting of: e. arranging electrical junctions between electrical light sources (1) on a metal plate (3; 27; 43). 35 o! 37. Method according to one of claims 28 to 36, characterized in that it comprises a step prior to step b. consisting of: f. providing a formwork (37) around the set of said plurality of protective shells. 38. Use of the device according to claim 1 in the realization of a portion of floor covering. 39. Use according to claim 38, characterized in that said portion of floor covering is a road signaling device. 40. Use according to claim 38, characterized in that said portion of flooring is an ornamental device. EUER