EP2772680B1 - Drehbares elektrisches Beleuchtungsgerät - Google Patents

Drehbares elektrisches Beleuchtungsgerät Download PDF

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Publication number
EP2772680B1
EP2772680B1 EP14153346.3A EP14153346A EP2772680B1 EP 2772680 B1 EP2772680 B1 EP 2772680B1 EP 14153346 A EP14153346 A EP 14153346A EP 2772680 B1 EP2772680 B1 EP 2772680B1
Authority
EP
European Patent Office
Prior art keywords
light
fixed part
wall
lighting apparatus
electric lighting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14153346.3A
Other languages
English (en)
French (fr)
Other versions
EP2772680A1 (de
Inventor
Patrick Cliquennois
Jean-François Gobeau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SNC
Legrand France SA
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Filing date
Publication date
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Publication of EP2772680A1 publication Critical patent/EP2772680A1/de
Application granted granted Critical
Publication of EP2772680B1 publication Critical patent/EP2772680B1/de
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/004—Refractors for light sources using microoptical elements for redirecting or diffusing light using microlenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a rotating lighting electrical apparatus, of the type to be fixed on a wall such as a wall or a ceiling, to orient a beam of light.
  • These recessed spots are generally mobile around two or three axes of rotation.
  • the device described later aims to remedy all or part of the drawbacks of the state of the art and in particular to simply and reliably produce lighting electrical equipment on a wall, easy to use and whose orientation of the luminous flux is simple and has increased amplitude without damaging the electrical mechanism, especially the electrical son.
  • an illuminating electrical apparatus which has in particular a fixed part and a mobile part, is proposed: the fixed part intended to be fixed to a wall and comprising a mechanism for electrical apparatus, which mechanism comprises at least one light source located at one of its surfaces for generating one or more beams of light, said surface defining a reference plane; a moving part comprising at least one base, an optical element and means for directing the beam (s) of light towards the optics; the apparatus comprising at least one means for connecting the mobile part to the fixed part so that the mobile part is rotatable relative to the fixed part at its base.
  • Such electrical equipment makes it possible to overcome any rotation of the light source and, a fortiori, any twisting of the electrical son that feeds electricity.
  • the rotation of the moving part relative to the fixed part has the double advantage of not having any mechanical stress which would be likely to degrade the power supply and thus to allow a greater amplitude of orientation of the luminous flux and, on the other hand, the moving part having a reflector, it prevents a direct stream of light irritates the eyes of users.
  • the movable part can rotate indefinitely in one or the other direction along at least one axis of rotation. Indeed, the electrical son not being solicited during rotation, preventive stops are not necessary and the rotation of the movable portion relative to the fixed part can be endless.
  • the connecting means form a pivot connection, along an axis substantially orthogonal to the reference plane, between the mobile part and the fixed part.
  • connection a connection leaving free a single degree of freedom corresponding to a rotation about an axis, said axis being in this case the axis orthogonal to the reference plane.
  • the connecting means comprise, without limitation, a connecting ring intended to be fixed to the fixed part by forming, in an assembled position, a guide channel in which a substantially circular flange of the base of the part mobile is guided to ensure the rotation of the movable portion relative to the fixed portion about the axis orthogonal to the reference plane.
  • the substantially circular collar may be continuous or discontinuous. Indeed, it may be alternately formed by portions of intermediate flanges or protruding lugs arranged in a circular contour of the base and adapted to be guided in said guide corridor to ensure rotation.
  • Such a guiding groove forming a guiding means in particular allows said rotation of the mobile part with respect to the fixed part along this axis. This also eliminates other fastening means such as screwing.
  • the mobile part may have, on its base having a circular shape, one or more elastic tabs forming clip (s) and arranged (s) to ensure the clipping of the movable part to the fixed part, and more specifically on a substantially circular guide rail of the fixed part.
  • the infinite rotation is preferably performed by a closed contour of said guide means.
  • the means for directing the light flux towards the optics comprise a main reflector.
  • Such a main reflector is preferably located at a distance from the at least one light source and facing it (s).
  • the reflector is located in a space at the front of the at least one light source, that is to say still, axially distant, with respect to the axis orthogonal to the reference plane, the light source (s), on the emergent side of the luminous flux.
  • the luminous flux visible to the user comes only from the rays emerging from the main reflector and not directly from the light source (s).
  • the main reflector has at least a first and a second reflection wall arranged such that, in an assembled position, the first wall is closer to the reference plane than the second wall, the first and second walls being respectively inclined at a first and a second angle to the reference plane, the second angle being larger than the first angle.
  • each of these walls are flat. However in other configurations all or part of these walls may be substantially parabolic.
  • the first angle is substantially between 40 and 70 degrees and preferably substantially equal to 45 degrees, the second angle being strictly greater.
  • the optics of the moving part have streaks to change the orientation of the light flux of the reflector.
  • these striations are configured to change the orientation of the luminous flux between 10 and 30 degrees, for example 15 and / or 25 degrees.
  • the striations are each included in planes parallel to the reference plane.
  • Such a characteristic makes it possible to cover a lighting zone of greater magnitude.
  • These angle values are chosen so as to most effectively cover a predetermined lighting area while providing the best light intensity.
  • the fixed part has a cover arranged to be traversed by the flow of light, the cover having on the side of the at least one light source, at least one collimating optics arranged to be traversed by the light flow of the at least one light source and to collimate the rays of the luminous flux.
  • collimating optics makes it possible in particular to be able to direct most of the light flux towards the main reflector so as to improve the luminous intensity of the lighting electrical equipment.
  • all the light flux emanating from the light source (s) is collimated towards said reflector.
  • the cover has an outer surface carrying a structure comprising an arrangement of a plurality of micro-cavities, preferably micro-spheres, for mixing the colorimetric spectrum of the light sources.
  • an optic in the general case where an optic is disposed in the path of a stream of light rays, it has diopters, that is to say that it has at least locally surfaces separating transparent media different refractive indices.
  • some light sources produce a white light by the emission of rays of different distinct colors and their mixture forming a white light. This is for example the case for light emitting diode (LED) structures. Indeed, most white LEDs consist of a chip emitting blue light surrounded by a yellow phosphor, which converts a portion of the blue radiation into yellow radiation. The superposition of blue and yellow produces white light. Now the light sources form an image that can be returned by the optics so that the result is a heterogeneous illumination for the user.
  • LED light emitting diode
  • collimation means tend to produce an image at infinity of the emitting area of the LEDs.
  • a projected and enlarged image of the internal structure of the LED is then observed on the illuminated surface with all the heterogeneities it contains, ie a blue central zone corresponding to the chip surrounded by a yellow halo corresponding to the phosphor layers.
  • the collimation means thus tend to disperse the light and the result is a heterogeneous illumination.
  • Said microcavities placed on the outer surface of the cover thus have the role of mixing the different light rays which, at the exit of the optics, would present a color decomposition, that this decomposition of the color is due to a projection of an image of distinct light sources, for example because of the collimating optics, or that it is due to the refraction of the luminous flux itself after having passed through the cover.
  • micro-cavities thus make it possible to smooth and homogenize the color of the illuminated surface while increasing the intensity of the luminous flux, that is to say to improve the uniformity of illumination and the rendering of the colors.
  • Each of the micro-cavities behaves as a convergent or divergent diopter: the light rays of the light flux decomposed at the input of each microstructure are transformed by refraction into light rays having an angular extension of a few degrees.
  • the luminous flux at the exit of the surface arrangement of micro-cavities will then be more homogeneous.
  • the user will thus be able to benefit from a white luminous flux instead of a luminous flux whose basic colors have been dispersed and which would have resulted in a lighting having, for example, colored halos.
  • the base of the movable portion has a closed contour defining an opening, said base further comprising a hub cap.
  • This trim hub preferably has, with the optics, a dome shape within which the main reflector is located.
  • the fixed part When lighting electrical equipment is installed, its fixed part is preferably housed in the wall wall and the surface carrying light sources is substantially flush with said wall.
  • the cover covers this surface.
  • the mobile part is itself linked by its base to the fixed part, the opening of the dome shape comes opposite the surface carrying the light sources while the base delimiting the periphery of this opening comes substantially in contact with the least one surface of the fixed part, preferably located on the lid.
  • the ring is clipped on the fixed part.
  • the invention relates to an assembly comprising illuminating electrical equipment as described above, and a mounting box intended to be fixed to the wall and arranged to house therein said lighting electrical equipment so as to ensure the fixing of said equipment to the wall.
  • the recess box is arranged to provide thermal insulation of the lighting apparatus with an external environment.
  • Such lighting equipment can, during their use, release a significant heat. This is particularly the case when the light sources are LEDs or OLEDs.
  • insulation means makes it possible to create a thermal bridge between the electrical equipment mechanism and its external environment, for example the interior insulation of a wall or a ceiling.
  • such a recess box forming an insulation means makes it possible to ensure the safety of the dwelling by its insulation while presenting a low compactness.
  • such a housing is composed of two materials: polypropylene (PP) and polystyrene-b-poly (ethylene-butylene) -b-polystyrene (SEBS). More generally this embedding box may be formed of one or more materials, preferably a plastic material and a polystyrene material.
  • FIGS. 1-8 illustrate figures of all or part of an illuminating electrical apparatus according to one embodiment.
  • the light sources 5 are here light emitting diodes (LEDs) but can alternatively be organic light emitting diodes (OLED).
  • the apparatus 1 further comprises a connecting means 9, here comprising a ring 10, for connecting the mobile part 3 to the fixed part 2 so that the mobile part 3 is rotatable relative to the fixed part 2 at its base 7.
  • a connecting means 9, here comprising a ring 10 for connecting the mobile part 3 to the fixed part 2 so that the mobile part 3 is rotatable relative to the fixed part 2 at its base 7.
  • the only degree of freedom allowing rotation of the movable portion 3 relative to the fixed portion is along the axis X orthogonal to the reference plane P defining a pivot connection.
  • the optic 8 of the mobile part 3 is integral with the base 7, the optics 8 forming with a hub cap 21, when assembled one with the other, a dome.
  • This assembly of the hub cap 21 on the base 7 with the optics is carried out by means of three resilient tabs 210 forming a clip, a central tab and two lateral tabs for its clipping on the base 7, and an upper notch at the top of the plate. dome to cooperate with the optics 8.
  • the base 7 of the movable portion 3 has a closed inner contour defined here by the flange 12 defining an opening 20.
  • the optic 8, the hubcap 21 and the base 7 together define an interior space at the dome, this interior space opening at level of opening 20.
  • a main reflector 13 for directing the light flow to the optics 8 is arranged to be inserted and fixed in the interior space of the dome.
  • This main reflector 13 may be alternately inserted into this interior space after assembly of the dome or fixed beforehand for example at an inner wall of the hubcap 21 before assembly. Its attachment in the dome structure can be by embedding, clipping and / or bonding.
  • a lower edge is preferably fixed in the vicinity of the base 7 and an upper edge is fixed in the vicinity of the tip of the dome, the main reflector 13 is then hidden by the hubcap 21.
  • the main reflector 13 is then aligned axially with the light sources 5 and arranged opposite them.
  • Said main reflector 13 is here monobloc.
  • the luminous flux coming from the light sources 5 passes through the opening 20 of the mobile part 3, is redirected by the main reflector 13, the reflected rays then being oriented towards the optics 8 which is transparent for let the flow of light pass.
  • the main reflector 13 has a first reflection plane 13a and a second reflection wall 13b and arranged in such a way that, in the assembled position, the first wall 13a is closer to the reference plane P than the second wall 13b, the first and second walls 13a, 13b being inclined respectively according to a first ⁇ 1 and a second angle ⁇ 2 with respect to the reference plane P (see figure 6 ), the second angle ⁇ 2 being larger than the first angle ⁇ 1 .
  • the first angle ⁇ 1 of the first wall 13a is equal to 45 degrees.
  • the rays reflected by said first wall 13a of the main reflector 13 are then substantially parallel to the wall surface. This is explained by the Snell-Descartes law for reflection, applied to this configuration in which the angle of incidence is 45 degrees, the angle of reflection is 45 degrees, the radius then being deviated from the sum from these angles, or 90 degrees.
  • the luminous flux at the output of the optics 8 will be of greater amplitude and better distributed so as to cover a larger illuminated surface.
  • the reflector may consist of two mirror planes connected by an edge or form in section, a continuous curve continuously varying the angle of the first value to the second value, or any intermediate solution.
  • the main reflector 13 also has side walls 13c so as to improve the intensity of the luminous flux and the efficiency of the apparatus 1.
  • the number of walls is not exhaustive and may vary depending on the volume of the interior space of the dome, so dimensions of the optic 8 and / or cover hubcap 21. More generally, the reflector may comprise a plurality of planar walls. This said main reflector 13 is integrally housed in the dome structure.
  • Another alternative or complementary solution for increasing the amplitude of the surface illuminated by the optics 8 is to have, on said optics 8, ridges 14 for changing the orientation of the light flux reflected by the main reflector 13.
  • ridges 14 are each included in planes parallel to the reference plane P, but it may be otherwise depending on the predetermined surface to illuminated.
  • the fixed part 2 has a cover 15 arranged to be fixed to a base 2 'and cover the light sources.
  • This cover 15 is also arranged to be at least locally traversed by the light sources 5.
  • the entire cover 15 is transparent polycarbonate allowing the passage of light through.
  • This fixed part 2 is intended to be fixed in a wall, for example a wall or a ceiling.
  • the figure 4 illustrates in particular a perspective view of an assembly comprising an electrical apparatus 1 illuminating in an assembled configuration and a mounting housing 22 and a support 23 for fixing, the recess box being arranged to fix said apparatus 1 on a wall, for example a wall or a ceiling.
  • the support 23 for fixing comprises a base 24 intended to be fixed to the mounting box 22 bordering substantially a periphery 25 of an opening 25 'of said mounting box 22, preferably oriented also axially along the axis X orthogonal to the reference plane P, so that the fixed part 2 of the apparatus 1 can cooperate detachably on the support 23 for fixing, preferably also by clipping and to be housed in said housing of recessing 22.
  • This embedding box 22 thus allows the fixing and / or the embedding of the fixed part 2 in the wall, said fixed part 2 being provided to be housed in a space delimited by the mounting box 22 and the support 23 of fixation.
  • said housing 22 is composed of two materials: polypropylene (PP) and polystyrene-b-poly (ethylene-butylene) -b-polystyrene (SEBS).
  • PP polypropylene
  • SEBS polystyrene-b-poly (ethylene-butylene) -b-polystyrene
  • the cover 15 has on the side of the at least one light source 5, collimating optics 16 forming means of collimation and each being arranged to be traversed by the light flow of one of the light sources 5 and to collimate rays of the associated luminous flux.
  • a collimating optic is arranged facing each of the light sources 5 (see FIG. figures 6 , 7a , and 8 ).
  • the transparent cover 15 forms an optic having a body 150 forming a lens and collimation means formed by frustoconical structures 160 having each a large base and a small base, the large base being contiguous to a first side of the lens body, the small base being disposed opposite the associated light source 5.
  • the frustoconical structure 160 has a cylindrical cavity 161 opening at its small base, the cylindrical cavity 161 having a bottom 162 of substantially convex parabolic shape.
  • this cylindrical cavity 161 is dimensioned so that its diameter is substantially that of the associated light source 5.
  • the light rays R L of a light source 5 directed towards the bottom 162 of the cylindrical cavity 161 will be collimated in the same direction, here parallel to the axis X and the rays oriented towards the inner walls of the cylindrical cavities 161 will be reflected by the walls of the frustoconical structures 160 so that the reflected rays are substantially parallel to the X axis.
  • the collimating optics are formed by frustoconical portions 160 'so as to improve the intensity of the luminous flux.
  • These frustoconical portions 160 ' are formed by structures of similar frustoconical shapes but whose revolution of shape around the X axis is strictly less than 360 degrees, for example the frustoconical portion 160' is a truncated portion of a frustoconical structure 160. They then each have a cylindrical cavity portion 161 'provided with a bottom 162'.
  • the figure 9 represents an embodiment in which the collimating optics 16 are arranged to orient the light rays R L light sources 5 at a predetermined angle relative to the X axis, substantially 70 degrees in this example.
  • These collimating optics 16 are similar to frustoconical portions 161 'described above.
  • the forming cap 15 has an outer surface 17 carrying a structure 18 comprising an arrangement of a plurality of micro-spheres 18 'for mixing the color spectrum of the light sources 5.
  • This outer surface 17 is flat, parallel to the reference plane P and disposed on a second side of the lens body, the second side being opposite to the first side.
  • micro-spheres 18 'form means for homogenizing the light flow and may alternatively be formed by any micro-cavities making it possible to perform this function, for example micro-prisms.
  • Such micro-cavities 18 are particularly advantageous in combination with collimating optics 16 and / or LEDs.
  • collimating optics 16 can cause a dispersion of the light when it is polychromatic that can be corrected by the microspherical structure.
  • said so-called collimating optics 16 tend to produce an infinite image of the emitting zone of the LEDs, the illumination offered to the user by such an apparatus being then heterogeneous.
  • the luminous flux at the outlet of the micro-spherical structure 18 will then be more homogeneous.
  • the user can then enjoy a white light flow instead of a luminous flux the basic colors of which have been scattered or decomposed and which result in illumination with colored halos.
  • micro-cavities 18 ' are arranged in a surface arrangement forming a substantially square pattern, that is to say that the centers of each of the micro-spheres 18' form regular patterns substantially square.
  • the Figures 7b and 7c illustrate such an arrangement, the Figure 7c illustrating a sectional view of the micro-spherical structure 18 in a section plane parallel to the reference plane P.
  • micro-spheres 18 are here arranged contiguous to each other. Such a configuration offers both the advantage of homogenizing the light flow while having a sufficient amount of material in the structure 18 to ensure its mechanical strength.
  • the micro-spherical structure 18 has a spacing between micro-spheres 18 'strictly less than the radius of the microspheres, said spacing being preferably substantially between 50% and 90% of the radius of the micro-spheres 18'.
  • the micro-spheres 18 ' have a radius of 0.1 mm, the micro-spheres 18' forming a square pattern, some being contiguous and others having a spacing along the diagonal of this pattern of 0 , 08 mm.
  • a spacing, or maximum spacing substantially between 0.05 mm and 0.5 mm and a micro-sphere radius 18 'substantially between 0.1 and 1 mm.
  • the light rays R L coming from the LEDs 5 initially pass through the collimating optics 16 forming collimation means, then pass through the body 150 of the cover 15 and then pass through the micro-spherical structure 18 forming a means homogenizing the flow before passing through the opening 20 of the movable portion 3 and being reflected by the main reflector 13 towards the optic 8.
  • the lid 15 is made of polycarbonate.
  • the collimating optics 16, the body 150 of the cover 15 and the micro-spherical structure 18 are monobloc.
  • micro-spherical structure 18 may be designed independently, for example in the form of a flexible film of material, which would make it possible to have such a structure 18 on pre-existing optics or lenses.
  • the movable part 3 is movable with respect to the fixed part 2 and connected with the X axis by means of the connecting means 9.
  • This rotation is more particularly carried out by means of a ring 10 of the connecting means 9, said ring 10 being intended to be fixed to the fixed part 2 by forming, in an assembled position, a guide channel 11 in which a collar 12 substantially circular of the base 7 of the movable portion 3 is guided to ensure the rotation of the movable portion 3 relative to the fixed portion 2 about this axis X.
  • the base 7 of the movable portion has a closed contour defining the opening 20 of the dome shape when the hubcap 21, the optic 8 and the base 7 are secured together or assembled.
  • the optical 8 and the base form a single piece.
  • the base 7 can be formed in one piece with the hub cap 21.
  • the opening 20 of the movable part 3 comes opposite the surface 6 carrying the light sources, and the base 7 is placed in contact with the plane outer surface 17 and parallel to the reference plane P, this outer surface 17 being disposed on the cover 15 of the fixed part 2.
  • the cover 15 has on its outer surface 17 contact surfaces 26 arranged to receive in contact with said base 7 of the movable part.
  • the flange 12 of the base 7 abuts with these contact surfaces located in the vicinity of the edges of said cover 15.
  • These said contact surfaces 26 are contained in the same plane parallel to the reference plane P so that the rotation of the moving part 3 with respect to the fixed part 2 is performed along the X axis orthogonal to said reference plane P.
  • the cover 15 may have on its outer surface 17, in place of the contact surfaces 26, slide portions accommodating said base 7 of the movable part.
  • the flange of the base 7 cooperates with these portions of slides located in the vicinity of the edges of said cover 15. In such a position, the base 7 cooperates with portions of slides, these portions of slides each having a surface parallel to the reference plane forming a bottom and an axially erected surface along the X axis, such as an extra thickness, forming an edge.
  • said axially raised surfaces, or oversize, delimit cylindrical portions whose cylinder carried by these cylindrical portions is coaxial with the X axis and its diameter is substantially equal to or slightly greater than the outer diameter of the circular contour. from the base 7.
  • the ring 10 is clipped on the cover 15 of the part fixed 2.
  • the annular ring 10 has a first 101 and a second 102 end.
  • the first end 101 has an opening 101 'of inside diameter strictly smaller than the outside diameter of the flange 12 of the base 7 of the movable part 3 so that, when the ring 10 is clipped onto the fixed part 2, this first end 101 comes against this flange 12 by covering axially. This ensures the axial locking of the movable part 3, said flange 12 being then guided in a guide groove 11 delimited axially by the first end 101 of the ring 10 and the contact surfaces 26.
  • the first end 101 has a wall 101 "erected substantially axially along the axis X orthogonal to the reference plane P and delimiting the circular contour of the opening 101 'of said first end 101.
  • This wall is arranged to provide laterally , or radially with respect to this axis, the blocking of the movable part with respect to the fixed part.
  • the diameter of this circular contour that is to say still the inside diameter of the opening 101 'is equal to or slightly greater than the outside diameter of the domed shape in the vicinity of its base 7.
  • the lateral blocking ensuring the coaxiality of the movable part 3 with the X axis during its rotation is allowed, in this embodiment illustrated, thanks to a ring 10 laterally forming an outer stop relative to the movable portion 3, unlike the alternative described above (not shown) in which they are extra thicknesses of the surface 17 laterally forming inner abutment relative to
  • the advantage of the inner abutment according to the alternative is to limit premature wear of the outer surface of the movable part 3 due to the friction of the movable part 3 with the ring 10.
  • the second end 102 has a cylindrical shape whose inner diameter is adapted to cooperate with the cover 15 and ensure its attachment with said fixed portion 2 by clipping.
  • the mobile part 3 is in pivot connection with the fixed part 2 so that the only degree of free freedom is the rotation around the axis X.
  • This rotation is guided by the guide corridor 11 whose axial distance along the X axis between the first end 101 of the ring and the contact surfaces 26 delimits a thickness arranged both to limit the friction of the collar 12 in this case. guide corridor 11 and both to block in translation along the axis X the movable portion 3.
  • Clipping of the ring 10 with the fixed part 2 is here ensured by lugs 29 of the cover 15 erected radially with respect to the axis X and coming to cooperate elastically with cavities situated on an inner surface of the cylindrical shape of the second end. 102 of the ring 10.
  • the ring 10 In the linked position, the ring 10 is fixed relative to the fixed part 2, and together form the guide corridor 11.
  • the moving part 3 is guided in rotation by its circular flange 12 whose sliding in said guide channel 11 allows infinite rotation.
  • the luminous flux of the apparatus 1 comes from the light sources 5, the light rays following a path substantially along the X axis through the cover 15, in particular the collimating optics 16 and the micro-spherical structure 18, then crossing the opening 20 of the movable portion 3. Once the opening 20 through, the light rays are reflected by the main reflector 13 being oriented towards the optical 8 which is transparent to let the light flow and has the streaks 14 to reflect the light rays again in a predefined direction.
  • the rotation of the movable portion 3 relative to the fixed portion 2 about the X axis causes the rotation of the main reflector 13 carried by the movable portion 3 and, consequently, the rotation of the reflected light flux.
  • This rotation can be infinite because the user chooses the orientation of the luminous flux only by the rotation of the main reflector 13 and not that of the light sources 5.
  • the main reflector 13 is located between the fixed part and the trim cover facing the light sources 5, that is to say facing them. It is located more precisely between the cover 15 and the hub cap 21 of the moving part 3. By means of the collimating optics 16, almost all of the light flux is directed towards said main reflector 13 and the light sources 5 are not directly visible to the user.
  • Such an apparatus also makes it possible to be compact, especially since it frees itself from any reflector located laterally to the light sources. It is as simple to made and easy to use.
  • the configuration as described has indeed a reduced volume of space, the mobile part comprising only one optical, a hubcap and a dome base, inside which is housed only a reflector.
  • Such a reflector having a sharp angle offers the advantage of maximizing the amplitude of the surface to be illuminated.
  • the collimating optics allow to improve the intensity of the light and the micro-spherical structure allows to have a uniform illumination.
  • connection of the mobile part 3 to the fixed part 2 may be alternately, and without limitation, on the cover 15 or the base 2 '.
  • the connecting means of the movable part to the fixed part may also differ while providing the same function and additional degrees of freedom allowing rotations along other axes may be provided.
  • laterally projecting lugs may be envisaged in other guideways and rotating the moving part around axes contained in the reference plane.
  • the dome shape can be modified according to the desired maximum volume of space, the amplitude of the surface to be illuminated, and the desired aesthetics.

Claims (7)

  1. Elektrisches Beleuchtungsgerät (1), das einen festen Abschnitt (2) und einen mobilen Abschnitt (3) aufweist:
    - wobei der feste Abschnitt (2) dazu bestimmt ist, an einer Wand befestigt zu werden, und einen Mechanismus (4) für das elektrische Beleuchtungsgerät und zumindest eine Lichtquelle (5) umfasst, um einen Lichtfluss zu erzeugen, wobei diese Lichtquelle (5) im Wesentlichen von einer Oberfläche (6) des Mechanismus getragen wird, wobei diese Oberfläche (6) eine Bezugsebene (P) darstellt;
    - wobei der mobile Abschnitt (3) zumindest eine Basis (7), eine Optik (8) und Mittel zum Leiten des Lichtflusses zur Optik (8) umfasst, und die besagten Mittel zum Leiten des Lichtflusses zur Optik (8) einen Hauptreflektor (13) umfassen;
    wobei das elektrisches Beleuchtungsgerät (1) zumindest ein Mittel zum Verbinden (9) des mobilen Abschnitts (3) mit dem festen Abschnitt (2) umfasst, sodass der mobile Abschnitt (3) im Verhältnis zum festen Abschnitt (2) im Bereich seiner Basis (7) verdreht werden kann,
    wobei das elektrisches Beleuchtungsgerät (1) dadurch gekennzeichnet ist, dass:
    - der Hauptreflektor (13) zumindest eine erste (13a) und eine zweite (13b) ebene Reflexionswand umfasst, wobei die erste und die zweite ebene Reflexionswand derart angeordnet sind, dass die erste Wand (13a) in der zusammengesetzten Position näher an der Bezugsebene (P) liegt, als die zweite Wand (13b), wobei die erste und zweite Wand (13a, 13b) jeweils gemäß einem ersten Winkel (α1) und einem zweiten Winkel (α2) im Verhältnis zur Bezugsebene (P) geneigt sind, wobei der zweite Winkel (α2) größer ist, als der erste Winkel (α1) ; und dadurch, dass
    - die Optik (8) Rillen (14) aufweist, um die Orientierung des Lichtflusses aus dem Hauptreflektor (13) zu ändern, wobei die Rillen (14) in der zusammengesetzten Position jeweils in Ebenen parallel zur Bezugsebene (P) enthalten sind.
  2. Elektrisches Beleuchtungsgerät (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Verbindungsmittel (9) eine Drehverbindung in einer Achse (X) bilden, die im Wesentlichen orthogonal zur Bezugsebene zwischen dem mobilen Abschnitt (3) und dem festen Abschnitt (2) verläuft.
  3. Elektrisches Beleuchtungsgerät (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Verbindungsmittel (9) einen Ring (10) umfassen, der dazu bestimmt ist, am festen Abschnitt (2) befestigt zu werden, und in einer zusammengesetzten Position einen Führungskorridor (11) zu bilden, in dem ein im Wesentlichen kreisförmiger Flansch (12) der Basis (7) des mobilen Abschnitts (3) geführt wird, um die Drehung des mobilen Abschnitts (3) im Verhältnis zum festen Abschnitt (2) um die Achse (X) zu gewährleisten, die orthogonal zur Bezugsebene (P) verläuft.
  4. Elektrisches Beleuchtungsgerät (1) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der feste Abschnitt (2) einen Deckel (15) aufweist, wobei der Deckel auf der Seite der zumindest einen Lichtquelle (5) zumindest eine Optikkolimator (16) aufweist, der angeordnet ist, um vom Lichtfluss der zumindest einen Lichtquelle (5) durchquert zu werden, und um die Strahlen des Lichtflusses zu kollimatieren.
  5. Elektrisches Beleuchtungsgerät (1) nach Anspruch 4, dadurch gekennzeichnet, dass der Deckel (15) eine Außenfläche (17) aufweist, die eine Struktur (18) trägt, die eine Anordnung einer Vielzahl von Mikrosphären (18') umfasst, um das kolorimetrische Spektrum der zumindest einen Lichtquelle (5) zu vermischen.
  6. Elektrisches Beleuchtungsgerät (1) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Basis (7) des mobilen Abschnitts (3) eine geschlossene Kontur aufweist, die eine Öffnung (20) definiert, und dadurch, dass sie eine Zierkappenblende (21) umfasst, wobei die Zierkappenblende (21) mit der Optik (8) eine Kuppelform aufweist.
  7. Einheit, dadurch gekennzeichnet, dass sie ein elektrisches Beleuchtungsgerät (1) nach einem der vorherigen Ansprüche umfasst, und ein Einbaugehäuse (22), das dazu bestimmt ist, an der Wand befestigt zu werden, und das angeordnet ist, um dort das besagte elektrische Beleuchtungsgerät (1) aufzunehmen, sodass die Befestigung der besagten Anlage (1) an der Wand gewährleistet wird.
EP14153346.3A 2013-03-01 2014-01-30 Drehbares elektrisches Beleuchtungsgerät Active EP2772680B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1351874A FR3002792B1 (fr) 2013-03-01 2013-03-01 Appareillage electrique eclairant rotatif

Publications (2)

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EP2772680A1 EP2772680A1 (de) 2014-09-03
EP2772680B1 true EP2772680B1 (de) 2015-12-02

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EP (1) EP2772680B1 (de)
CN (1) CN104019410A (de)
FR (1) FR3002792B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017208003A1 (de) * 2017-05-11 2018-11-15 BSH Hausgeräte GmbH Beleuchtungsvorrichtung für Haushaltsgerät und Haushaltsgerät
JP7130913B2 (ja) * 2018-06-27 2022-09-06 日亜化学工業株式会社 光学装置および照明装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB534455A (en) * 1939-05-17 1941-03-07 Harold Martin Improvements in and relating to apparatus for the projection of light
US4769743A (en) * 1985-07-01 1988-09-06 Michael Callahan Apparatus for mechanically adjusting lighting fixture azimuth and elevation
AT385343B (de) * 1986-03-14 1988-03-25 Bartenbach Christian Leuchte
FR2821147B1 (fr) * 2001-02-20 2003-09-26 Fd Eclairage Dispositif d'eclairage, notamment projecteur tel que spot
JP4223366B2 (ja) * 2003-09-30 2009-02-12 株式会社エス・テー・アイ・ジャパン 配光制御型照明器
US8096670B2 (en) * 2006-11-30 2012-01-17 Cree, Inc. Light fixtures, lighting devices, and components for the same
JP4842387B1 (ja) * 2010-06-11 2011-12-21 シャープ株式会社 照明装置

Also Published As

Publication number Publication date
FR3002792B1 (fr) 2018-07-27
FR3002792A1 (fr) 2014-09-05
EP2772680A1 (de) 2014-09-03
CN104019410A (zh) 2014-09-03

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