Phototherapy treatment device.

Abstract

The surface lighting panel (10) comprises a lighting face (12) and at least one lighting module (20) emitting light from the lighting face (12). According to the invention, the panel (10) comprises a plurality of modular slabs (100; 100A, 100B, 100C, 100D) comprising a front facing face (102) and an opposite back facing face (104), said front facing face (102) comprising a recess (110) open frontally and on at least one edge (106) of the slab (100; 100A, 100B, 100C, 100D), the slabs (100; 100A, 100B, 100C, 100D) being assembled by juxtaposition with one another in order to make the recesses (110) coincide in the extension of one another to delimit a cavity for receiving the lighting module (20). Figure 1_

Description

Title of the invention: Surface lighting panel.

[0001] The present invention relates to the technical field of lighting and more particularly relates to a lighting panel for false ceilings. The invention applies in particular to the lighting of interior rooms of commercial buildings.

[0002] In order to illuminate a room such as, for example, an office or a corridor, it is known to mount lighting panels, also called light panels, in a false ceiling fixed under the ceiling of the room.

[0003] To this end, the false ceiling comprises, in a known manner, a structure comprising beams whose section is, for example, H-shaped, arranged in a horizontal grid and on which opaque facing panels and light panels are usually mounted. Each light panel comprises, for example, a square-shaped frame which is mounted on the beams and inside which the lighting elements are mounted.

[0004] In a known manner, the light panel is in the form of a generally square frame with a front lighting face and an opposite back face intended to be mounted on a wall, for example in a false ceiling.

[0005] Generally, the panel frame comprises four profiles, each forming one side of the frame. One or two of the four profiles carries a strip of light-emitting diodes arranged so as to illuminate the interior of the panel transversely. The panel then also comprises a layer for redirecting the light emitted by the diodes towards the back lighting face.

[0006] However, on the one hand, these panels prove to be complex to assemble and manufacture because they require many different parts. In addition, dismantling the lighting element from the panel, which may be necessary for maintenance purposes or to replace the lighting element in the event of a breakdown, is not easy because it requires complete dismantling of the panel. Reassembly of the lighting element also proves to be just as tedious.

[0007] The lighting industry must constantly be innovative in order to satisfy a clientele that is, generally speaking, attracted by novelty and that is increasingly demanding on economic but also ecological aspects. Furthermore, it is necessary to offer solutions that can be used in renovation without being too expensive to manufacture. Description of the invention

[0008] To this end, the invention relates to a surface lighting panel comprising a lighting face and at least one lighting module emitting light from the lighting face, characterized in that the panel comprises a plurality of tiles modular comprising a front facing face and an opposite back facing face, said front facing face comprising a recess open frontally and on at least one edge of the slab, the slabs being assembled by juxtaposition of each other in order to make the recesses coincide in the extension of each other to delimit a cavity for receiving the lighting module.

[0009] Thanks to the modular presentation of the lighting panels, it is possible to adapt the final dimensions of the panel and also to simplify the manufacturing as well as the storage of the panel before assembly. In addition, maintenance and replacement of the lighting module can be carried out easily, the panel also guaranteeing a good visual appearance of the surface of the wall equipped with the lighting module(s).

[0010] In a preferred embodiment of the invention, the lighting module comprises a housing forming a rail for stiffening the assembly of the tiles together.

[0011] In a preferred embodiment of the invention, the lighting module comprises a strip of light-emitting diodes.

[0012] In a preferred embodiment of the invention, the housing has a generally oblong shape so as to extend longitudinally transversely to the juxtaposition edges of the slabs.

[0013] In a preferred embodiment of the invention, the housing has a general shape that is not exclusively rectilinear.

[0014] In a preferred embodiment of the invention, each slab comprises a releasable or permanent connection means carried by a wall of the recess cooperating with a complementary means carried by the lighting module.

[0015] In a preferred embodiment of the invention, the complementary connection means are of the reciprocal engagement or snap-fit ​​type.

[0016] In a preferred embodiment of the invention, the slabs are of identical dimensions.

[0017] In a preferred embodiment of the invention, the slabs are identical to each other or have axial symmetry or central symmetry.

[0018] In a preferred embodiment of the invention, comprising at least one element for coupling the two slabs dorsally.

[0019] In a preferred embodiment of the invention, the dorsal face of each slab comprises a peripheral rim projecting relative to said face, the coupling element comprises a rider configured to overcome both the rim of a first slab and the rim of a second juxtaposed slab.

[0020] In a preferred embodiment of the invention, each slab comprises stiffening ribs formed in relief on the back face.

[0021] The invention will be well understood and its advantages will appear better, on reading the detailed description which follows, of embodiments shown as non-limiting examples. The description refers to the appended drawings in which:

[0022] [Fig-1] [Fig. 1] is a perspective and top view of a lighting panel according to the invention.

[0023] [Fig.2] [Fig.2] is a perspective view of the panel of [Fig.l] without the lighting module.

[0024] [Fig.3] [Fig.3] is a perspective and bottom view of the panel of [Fig.l].

[0025] [Fig.4] [Fig.4] is a bottom view of the panel of [Fig.l].

[0026] [Fig.5] [Fig.5] is an enlarged and perspective view of part of the panel shown in [Fig.3].

[0027] [Fig.6] [Fig.6] is a perspective and top view of the lighting module of the panel of [Fig.l].

[0028] [Fig.7] [Fig.7] is a perspective and bottom view of the lighting module of [Fig.6]. Detailed description of the invention

[0029] Figures 1 to 7 show a surface lighting panel according to the invention. In the remainder of the description, the lighting panel is designated by the general reference 10.

[0030] As illustrated in [Fig.l], the panel 10 comprises a lighting face 12 and an opposite back face 14. The back face 12 is intended to be mounted on a wall, such as a false ceiling wall (not visible in the figures).

[0031] The panel 10 comprises at least one lighting module 20 emitting light from the lighting face 12. In the example illustrated in [Fig.l], the panel 10 comprises two lighting modules 20. These lighting modules 20 are in the example illustrated integrated into the thickness of the panel 10 in a flush manner on the lighting face 12.

[0032] In particular, the panel 10 comprises a plurality of modular slabs 100, preferably rectangular or square in shape. In the example illustrated, the panel 10 comprises four juxtaposed modular slabs 100A, 100B, 100C, 100D. Each slab 100 comprises a front facing face 102, intended to extend on the side of the front face 12 of the panel 10, and an opposite back face 104, on the side of the back face 14 of the panel 10. Each slab 100 is for example delimited by a peripheral edge 106 forming the periphery of the slab 100.

[0033] More particularly, according to the invention, the front facing face 102 of each slab 100 comprises an open recess 110 frontally and on at least one side of the peripheral edge 106 of the slab 100. Thus, the recess 110 opens into the peripheral edge 106 of the slab 100, that is to say into the thickness of the slab 100 and is open frontally on the side of the front face 102 of the slab 100.

[0034] When the slabs 100 are assembled to each other by juxtaposition, the recesses 110 of each slab 100 are brought into coincidence in order to position the recesses 110 end to end. The joining of the recesses 110 makes it possible to delimit a cavity 18 sized to receive the lighting module 20 by the lighting face 12 of the panel 10. In other words, the slabs 100 are assembled by juxtaposition edge to edge of each other in order to make the recesses 110 coincide end to end to form the cavity 18 for receiving the lighting module 20.

[0035] Preferably, the back face 104 of each panel 100 has a half-shell 112 formed projecting from the back face 104 and delimiting a hollow relief from the front face 102 of the panel 100. This projecting shell configuration makes it possible to optimize the circulation of air around the half-shells 112, which makes it possible to ensure optimal cooling of the light-emitting diodes, allowing them to operate efficiently and to increase their service life.

[0036] In order to stiffen the panel 10, each slab 100 is preferably ribbed on its back face 104. Preferably, as illustrated in [Fig. 3], each slab 100 carries stiffening ribs 109 formed in relief on the back face, here which intersect, for example generally diagonally. In the example illustrated, each rib 109 is not completely rectilinear, that is to say that it has a broken line shape, for example having at least one chicane. This chicane comprises for example two segments of the rib line forming an angle, preferably a right angle. This configuration of rib not completely rectilinear but in a broken line ensures increased stiffening compared to a completely rectilinear rib.

[0037] The slabs 100 of the panel 100 comprise at least one side of the edge 106 which is provided with coupling elements 16 which give two adjacent slabs 100 the ability to cooperate with each other. Preferably, the coupling element 16 is configured to couple the two adjacent slabs 100 dorsally and not laterally. In this way, no fixing of the plate appears on the front face which is aesthetic. This makes it possible to choose any number of slabs 10 to be assembled without unused coupling elements 16 remaining visible from the front face 12 of the panel 10.

[0038] Preferably, the dorsal face 104 of each slab 100 comprises a peripheral rim 108 projecting relative to said face 104. The coupling elements 16 comprise, for example, riders 160 configured to overcome both the rim 108 of a first slab 100 and the rim 108 of a second juxtaposed slab 100. For example, the rims 108 of the slabs comprise studs 162 integral with the slab 100 in which elements 164 of classic fixing of 160 riders (for example by screwing, riveting, etc.).

[0039] In a variant not illustrated in the figures, said coupling elements form an integral part of the slabs. Said coupling elements are provided with integrated mechanical locking means made in one piece with the slab so that, when two adjacent slabs are coupled, said means prevent said slabs from moving away from each other in a direction perpendicular to the edges concerned. For example, the coupling elements may be essentially in the form of a tongue and a groove, or more generally of a male relief and a complementary female relief.

[0040] In the preferred embodiment of the invention, the slabs 100 are made of a plastic material, for example by injecting the plastic material into a cavity of a mold delimiting the general shape of the slab. Preferably, the plastic material comes at least partially from a recycling channel.

[0041] Preferably, as illustrated in Figures 6 and 7, the lighting module 20 comprises a housing 22 housing a strip 24 of light-emitting diodes 26. Preferably, the housing 22 also comprises at least one diffuser.

[0042] Preferably, the housing 22 of the module 20 forms a rail for stiffening the assembly of the slabs 100 together. In the example described, the housing 22 has a generally oblong shape, preferably rectangular, so as to extend longitudinally transversely to the edges 106 of juxtaposition of the slabs 100. In a variant not illustrated, the housing 22 may have a general shape that is not exclusively rectilinear.

[0043] Here, the housing 22 comprises a housing body 220 made of a rigid material. The housing body 220 comprises, for example, a bottom 222 and a peripheral wall 224. The housing 22 is, for example, made of plastic, for example by injection of a plastic into a mold or into a metallic material such as aluminum. Preferably, the housing body 220 comprises, for example, a profile with a generally U-shaped section.

[0044] In a preferred embodiment of the invention, each slab 100 comprises a releasable or permanent connection means 112 carried by a wall of the recess 110 cooperating with a complementary means 28 carried by the lighting module 20. For example, the complementary connection means are of the reciprocal interlocking or snap-fit ​​type.

[0045] For example, as illustrated in Figures 6 and 7, the housing 22 comprises on its peripheral periphery tabs 280 for snapping or clipping and the recess 110 carries on a wall notches 114 configured to cooperate by clipping with the tabs 280. For example, the tabs 280 are formed by lateral fins carried by a peripheral wall of the housing 22. In operation, the side fins 280 adopt a retracted position when the lighting module 20 is inserted into the cavity 18 and then deploy into the notches 114 provided for this purpose so that the lighting module 20 is retained inside its housing.

[0046] Preferably, in order to facilitate storage and manufacture of the panels 10, the slabs 100 are of identical dimensions. In a preferred embodiment, the slabs 100 are identical to each other. Alternatively, the slabs 100 may have axial symmetry or central symmetry.

[0047] The main aspects of a lighting panel according to the invention will now be described.

[0048] Initially, an operator selects, according to the desired dimension of the final panel, a predefined number of pairs of modular tiles, and as many lighting modules as there are pairs. Then, he positions the tiles in pairs so that the recesses extend end to end, in line with each other. The recesses 110 thus joined in pairs together delimit a cavity 18 which is configured to house the lighting module 20.

[0049] Furthermore, in a second step, the operator positions the jumpers 16 in the locations 160 provided for this purpose on the modular tiles 100.

[0050] Finally, during a third step, once the slabs 100 of the panel 10 are secured to each other, the panel 10 is turned over towards its front lighting face 12. The lighting modules 20 are then inserted inside the cavities 18 of the panel 10, for example by reciprocal engagement with complementary means carried by the cavity 18.

[0051] Of course, other embodiments are conceivable without departing from the scope of the invention. Thus, various modifications can be made by those skilled in the art to the invention which has just been described by way of example.

[0052] The invention is not limited to what has just been described, but on the contrary encompasses any variant falling within the scope defined by the claims.

[0053] In particular, although slabs which are assembled dorsally have been illustrated, slabs which are assembled laterally with male and female coupling elements can also be produced. However, this requires several types of slabs to be produced.

Claims

Claims

1. Surface lighting panel (10) comprising a lighting face (12) and at least one lighting module (20) emitting light from the lighting face (12), the panel (10) comprising a plurality of modular tiles (100; 100A, 100B, 100C, 100D) comprising a front facing face (102) and an opposite back facing face (104), said front facing face (102) comprising a recess (110) open frontally and on at least one edge (106) of the tile (100; 100A, 100B, 100C, 100D), the tiles (100; 100A, 100B, 100C, 100D) being assembled by juxtaposition with each other in order to make the recesses (110) in the extension of one another to delimit a cavity (18) for receiving the lighting module (20), characterized in that the dorsal face (104) of each slab (100;100A, 100B, 100C, 100D) comprises a peripheral rim (108) projecting relative to said face (104), the coupling element (16) comprises a rider (160) configured to overcome both the rim (108) of a first slab (100; 100A, 100B, 100C, 100D) and the rim (108) of a second juxtaposed slab (100; 100A, 100B, 100C, 100D).;

2. Panel (10) according to the preceding claim, in which the lighting module (20) comprises a housing (22) forming a rail for stiffening the assembly of the tiles (100; 100A, 100B, 100C, 100D) together.

3. A panel (10) according to any preceding claim, wherein the lighting module (20) comprises a strip (24) of light-emitting diodes (26).

4. Panel (10) according to any one of the preceding claims, in which the housing (22) has a generally oblong shape so as to extend longitudinally transversely to the juxtaposition edges of the slabs (100; 100A, 100B, 100C, 100D).

5. Panel (10) according to any one of claims 1 to 4, in which the housing (22) has a general shape which is not exclusively rectilinear.

6. Panel (10) according to any one of the preceding claims, in which each slab (100; 100A, 100B, 100C, 100D) comprises a releasable or permanent connection means (114) carried by a wall of the recess (110) cooperating with a complementary means (28) carried by the lighting module (20).

7. Panel (10) according to the preceding claim, in which the complementary connection means (114, 28) are of the reciprocal engagement or snap-fit ​​type.

8. Panel (10) according to any one of the preceding claims, in which the slabs (100; 100A, 100B, 100C, 100D) are of identical dimensions.

9. Panel (10) according to any one of the preceding claims, in which the slabs (100; 100A, 100B, 100C, 100D) are identical to each other or have axial symmetry or central symmetry.

10. Panel (10) according to any one of the preceding claims, comprising at least one element (16) for coupling the two slabs (100; 100A, 100B, 100C, 100D) dorsally.

11. Panel (10) according to any one of the preceding claims, in which each slab (100; 100A, 100B, 100C, 100D) comprises stiffening ribs (109) formed in relief on the back face (104).

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