EP3936756B1 - Leuchtvorrichtung, die einen leuchtblock umfasst - Google Patents

Leuchtvorrichtung, die einen leuchtblock umfasst Download PDF

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Publication number
EP3936756B1
EP3936756B1 EP21183641.6A EP21183641A EP3936756B1 EP 3936756 B1 EP3936756 B1 EP 3936756B1 EP 21183641 A EP21183641 A EP 21183641A EP 3936756 B1 EP3936756 B1 EP 3936756B1
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EP
European Patent Office
Prior art keywords
unit
lighting device
light
lighting
battery
Prior art date
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Active
Application number
EP21183641.6A
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English (en)
French (fr)
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EP3936756A1 (de
EP3936756C0 (de
Inventor
Florian DESSEREE
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STOOTS
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Individual
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Publication of EP3936756A1 publication Critical patent/EP3936756A1/de
Application granted granted Critical
Publication of EP3936756B1 publication Critical patent/EP3936756B1/de
Publication of EP3936756C0 publication Critical patent/EP3936756C0/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/0035—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources the fastening means being capable of simultaneously attaching of an other part, e.g. a housing portion or an optical component
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/0055—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by screwing
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • 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
    • F21V5/006—Refractors for light sources applied to portable lighting devices
    • 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 light block, which can be used in a light device, in particular a light device of a lamp, for example a headlamp, a bicycle lamp or a helmet lamp.
  • a headlamp is composed of two main elements, a strap and a light device secured to the strap.
  • the strap is positioned around the individual's head and includes adjustment means to adjust to the size of their head circumference.
  • the light device is positioned on the front. It may include a light block, possibly a battery integrated into the light block or remote, an electronic control circuit and a light source, often composed of one or more light-emitting diodes.
  • the light device can sometimes be removable from the strap.
  • its light unit is composed of a waterproof housing, capable of enclosing or supporting the battery, housing an electronic control card and carrying an optical unit comprising at least one lens to adapt the light beam provided by the light-emitting diodes.
  • a waterproof housing capable of enclosing or supporting the battery
  • housing an electronic control card and carrying an optical unit comprising at least one lens to adapt the light beam provided by the light-emitting diodes.
  • One or more buttons positioned on the housing allow you to control the lamp and for example to adjust the intensity and shape of the beam.
  • the housing is often made of plastic material and is manufactured by molding, which requires the creation of a suitable mold. Creating the mold is a complex and particularly expensive operation, requiring profitability.
  • the plastic case can be fragile.
  • assembling the light block is not always simple and may require many steps.
  • the arm is fixed only to the front bezel of the light unit.
  • the case is tubular to accommodate a battery in the 18650 or 21700 type format.
  • the optical unit is made up of a single piece of plastic material.
  • the rear base is composed of a single piece of metallic material, machined on one side to make said imprint.
  • the front window is made up of a single piece of metallic material.
  • the optical unit comprises several optical elements, and the electronic card carries at least two light-emitting diodes positioned to generate a light signal through the same first optical element.
  • said first optical element has a symmetry of revolution around an axis and in that the two light-emitting diodes are positioned offset relative to the axis of this first optical element.
  • the two light-emitting diodes associated with the first optical element are different in size and power.
  • the invention also relates to a headlamp comprising a strap intended to be placed around the head of an individual and a support arranged on said strap and configured to accommodate a light device, the light device being as defined above.
  • the support comprises fixing means by interlocking or by sliding arranged to cooperate with the housing of the battery pack.
  • the invention also relates to a bicycle lamp, comprising a support arranged to attach to the handlebar of a bicycle and intended to receive a light device, the light device being as defined above.
  • the invention finally relates to a helmet lamp comprising a support arranged to attach to a helmet and intended to receive a light device, the light device being as defined above.
  • the light block has an architecture allowing the implementation of simple manufacturing methods, using inexpensive but with high yields.
  • the objective is, for example, to avoid manufacturing by molding, because machining a mold is often complex and then requires the use of an injection press.
  • 3D printing has certain advantages in terms of flexibility, it can be limited in terms of yield and production capacity.
  • the light block of the invention is thus designed from several machined plates assembled together and forming several layers, like a sandwich. These manufacturing methods can be adapted to different types of materials (aluminum, plastic, composite, even wood, etc.), which makes them particularly interesting.
  • the stratified structure of the light block allows each layer to provide a potentially different function: cooling, shock resistance, light diffusion, waterproofing, support for electronic components, etc.
  • the invention relates to a light block 41 and a light device 4 which notably comprises said light block 41 and a battery pack 40.
  • the light device 4 is intended to be used in a lamp, for example a headlamp, a bicycle lamp or a helmet lamp, for example for caving, mountaineering, etc.
  • the light device can be removably attached and easily moved to fit on a mount on a headlamp strap, on a bicycle mount, or on a mount on a helmet.
  • the light block 41 of the device has the particularity of being formed by the assembly of several pieces superimposed on each other, one on top of the other, forming several strata or layers. The superposition of the parts is thus carried out along several vertical parallel planes, perpendicular to the axis (X).
  • the light block 41 comprises a first part formed of a rear base 42.
  • This rear base 42 is advantageously produced in the form of a single piece of metallic material, for example aluminum.
  • the rear base 42 can be in the form of a single plate comprising a rear face 420 and a front face 421. On its front face 421, the plate has an imprint forming a housing 422. This imprint can be made by simple machining. At the periphery of the imprint, on its front face, the rear base may include a groove 423. The plate may be pierced along its thickness with several axial holes at the periphery of said groove.
  • the light block 41 comprises at least one electronic card 43 intended to be positioned in the housing 422 formed on the rear base 42.
  • the rear base 42 may include positioning pins 424 arranged in its housing, intended to cooperate with holes 430 made through the electronic card 43 to facilitate the positioning of the electronic card in the housing and to wedge it.
  • the electronic card 43 comprises electronic components (not shown on the figure 2 ) necessary for the operation of the light unit, in particular a light source, advantageously composed of one or more light-emitting diodes, and a control unit for said light source.
  • the control unit is for example configured to control one or more of the light-emitting diodes 431 depending on the intensity and/or the type of beam requested.
  • the electronic card can of course carry other components useful for its operation and which possibly make it possible to act on the generated beam, such as sensors.
  • the light block may include a seal positioned in the groove 423 of the rear base 42.
  • the light unit then comprises an optical unit 44 which is placed at the front of the rear base 42. It comprises a rear face 440 arranged to come to bear against the front face 421 of the rear base 42, on the surface which is located on the periphery of its housing 422, by crushing the seal and closing the housing to enclose the electronic card 43.
  • the optical unit 44 can be composed of a simple single piece made of plastic material, for example by molding or other manufacturing process.
  • the optical block 44 then includes one or more lenses formed in the block of material.
  • the optical unit 44 can also be composed of a machined plate (plastic or other) to form several housings into which standard lenses, for example commercially available, are inserted. This latter solution offers in particular great flexibility in terms of manufacturing and makes it possible to easily adapt and modify the optical unit 44.
  • each lens of the unit is intended to be positioned opposite one or more of the light emitting diodes 431 of the light source.
  • Each lens is shaped to ensure the creation of beams at the output of the light block.
  • the optical unit also includes a front bearing surface 441, made around the periphery of its lenses and forming a shoulder between a rear part and a projection 442.
  • the optical unit has several axial holes 443 made through the thickness of its part. rear, on the periphery of the lenses and opening on the one hand on its rear face 440 and on the other hand on its support surface 441. Its holes 443 are positioned to coincide with the holes made through the rear base.
  • the light unit 41 also includes a front bezel 45, positioned at the front of the optical unit 44.
  • the front bezel 45 has a front face 450 and a rear face 451, through which it comes to bear against the support surface 441 of the optical unit.
  • the front bezel 45 can be in the form of a hollowed-out plate, for example by machining, to form an axial opening 452.
  • the bezel 45 is arranged to come to bear against the bearing surface 441 of the optical unit 44, its axial opening 452 being designed to be crossed by the projection 442 of the optical unit 44 and to follow the contour of said projection 442.
  • the front window 45 can be formed from a single piece, advantageously made of metallic material, for example aluminum.
  • the front bezel 45 also has on its rear face 451 several axial threads (not visible on the figure 2 ), positioned to coincide with the axial holes made both through the rear base 42 and the optical unit 44.
  • the light block 41 includes fixing means arranged to fix the parts together, to form a structure with several layers (rear base + optical unit + front bezel). These fixing means are intended to fix the rear base 42 on the front window 45 by enclosing the optical block 44. The optical block 44 is thus sandwiched between the two parts formed of the rear base and the front window.
  • the fixing means may comprise several screws 46 each inserted in a separate well, their screw head bearing against the rear face 420 of the rear base 42, each screw passing through a hole in the rear base, a hole in the optical unit and having its tip screwing into a separate thread of the front bezel 45.
  • the light device 4 may include its battery pack.
  • this battery pack 40 may include a housing 400 or envelope, for example made of plastic or metallic material of the aluminum type, delimiting a reception space in which a battery can be placed.
  • This box 400 is composed of an elongated receptacle, open at one end to reveal the electrical contacts of the battery and closed at the other end by a closable cap on the receptacle, for example by screwing.
  • the housing 400 can be tubular in shape to accommodate 18650 or 21700 type batteries. It is fixed to the light block 41 by its first end, and its second end, which is closed by the cap, is left free, thus allowing attachment by sliding or sliding.
  • the light device 4 comprises a single fixing arm 47 of the battery block 40.
  • This arm 47 can be in the form of a support fixed to the light block and (advantageously only) to the front bezel 45 of the light block 41, said arm advantageously extending in a vertical plane perpendicular to the superposition planes of the parts of the light block.
  • the front window 45 may include means for fixing said arm 47, for example composed of screws inserted axially. It should be noted that the arm could be fixed on the rear base 42 but the fixing on the front bezel 45 provides a gain in compactness and robustness.
  • the support carries a housing 470 arranged to accommodate the battery pack 40.
  • This housing is oriented so that the battery block 40 extends, along its axis of revolution, in a horizontal direction (Y) parallel to the superposition planes of the parts of the light block ( figures 4 and 5 ).
  • the housing 400 of the battery pack may include at its first end an external thread for screwing onto an internal thread of the receiving housing 470.
  • the housing 470 advantageously includes electrical contacts to which the electrical contacts of the battery are connected, when the housing 400 is screwed into the housing 470.
  • the arm can integrate electrical connection means connecting these electrical contacts to electrical connection points of the electronic card 43 of the light block 41.
  • the battery unit 40 may include an extension unit, intended to connect the light unit 41 to a remote battery.
  • This extension unit can be in the form of a box identical to the box 400, screwed into the housing 470 and carrying an electrical connection arranged to electrically connect the electrical contacts present in the housing 470 to a remote battery, via a connection flexible, for example an electric cable.
  • the battery can be placed in a bag carried by the individual.
  • the light device 4 can be removably fixed on a support 3.
  • the support can be attached to a strap 2 of a headlamp, to the handlebar of a bicycle or to a helmet, for example a caving or mountaineering helmet.
  • the support 3 can cooperate with the light device via the battery pack 40.
  • the support may include fixing means by interlocking or by sliding arranged to cooperate with the housing of said battery pack.
  • these fixing means may comprise a part with an unclosed circular section, forming a non-articulated and deformable clamp, on which the battery pack case is fixed by nesting or by sliding.
  • FIGS. 6A and 6B present two configurations of possible combinations of light-emitting diodes and the optical unit 44.
  • the optical unit 44 comprises several optical elements, each forming a separate lens.
  • Each optical element can be in the form of a truncated cone whose small base is located towards the rear in front of a light source and the large flared base is located forward to define the shape and size of the emitted light beam.
  • the optical unit 44 may comprise three optical elements juxtaposed in the plane of the optical unit, for example each formed of an identical truncated cone, a central optical element O2 and two lateral optical elements O1, O3.
  • the optical elements are, for example, all identical.
  • the electronic card carries two light-emitting diodes D1_1, D1_2 of distinct characteristics associated with a first lateral optical element O1 of the block.
  • the two light-emitting diodes are, for example, distinct in power and size.
  • the electronic card carries two light-emitting diodes D2_1, D2_2 with identical characteristics associated with the central optical element O2 of the block.
  • the electronic card carries a single light-emitting diode D3_1 associated with the second lateral optical element O3.
  • This first configuration favors the topology of the beam with the possibility of creating a narrow or wide or eccentric beam of different colors.
  • the light-emitting diodes can be offset with respect to the symmetry of revolution of their optical element. This is the case for the first lateral optical element O1 and for the central optical element O2. We thus create particular beams, while maintaining symmetrical standard optics. This makes it possible in particular to facilitate the manufacturing and assembly of the optical unit.
  • the optical unit 44 comprises seven optical elements O10 arranged in a staggered manner.
  • the electronic card 43 carries seven light-emitting diodes D10, each associated with a separate optical element of the block.
  • the optical elements are, for example, all identical and so are the light-emitting diodes.
  • This second configuration favors light output and therefore power.
  • the beam produced is more classic than in the first configuration but the efficiency is maximum (30 to 40% higher).
  • the invention it should be noted that it is easy to easily change the characteristics of the light block, without having to redesign everything. It is thus possible to keep the same lenses (the only potentially expensive parts in terms of mold) and only change the type of light-emitting diodes (color, size, power) and adapt their position on the electronic card. Thus, we can profoundly change the characteristics of the beam to adapt it to specific needs (for example, red lamp for beekeeper, very narrow beam for well exploration, very wide beam for video, etc.). This architecture makes it possible to create so-called “expert” lamps for niche markets while maintaining a low cost price (no redesign, no investment in a new production tool).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Claims (13)

  1. Leuchtvorrichtung (4), umfassend einen Batterieblock (40), an den eine Batterie angeschlossen wird, einen Leuchtblock (41) und Mittel zur Befestigung des Batterieblocks an dem Leuchtblock (41), wobei der Leuchtblock aus einer geschichteten Struktur besteht, die durch die Überlagerung von mehreren unabhängigen und untereinander montierten Teilen gebildet wird, wobei die Teile beinhalten:
    - einen hinteren Sockel (42), der eine Vertiefung aufweist, die einen Sitz (422) bildet, wobei der Leuchtblock mindestens eine Leiterplatte (43) beinhaltet, die in dem Sitz (422) aufgenommen ist und mindestens eine Lichtquelle und eine Steuereinheit für die Lichtquelle trägt,
    - einen optischen Block (44), der auf dem hinteren Sockel angeordnet ist, um dessen Sitz dicht zu verschließen, indem eine zwischen dem hinteren Sockel (42) und dem optischen Block (44) angeordnete Dichtung gequetscht wird,
    - ein vorderes Fenster (45), das an dem optischen Block (44) angeordnet ist und einen Ausschnitt aufweist, der von dem optischen Block teilweise durchdrungen wird,
    - wobei der Leuchtblock auch Befestigungsmittel (46) beinhaltet, die den hinteren Sockel, den optischen Block und das vordere Fenster durchdringen und dazu ausgebildet sind, den optischen Block (44) zwischen dem hinteren Sockel (42) und dem vorderen Fenster (45) einzuspannen,
    - wobei der Batterieblock ein abnehmbares Gehäuse (400) beinhaltet, das dazu bestimmt ist, die Batterie aufzunehmen,
    dadurch gekennzeichnet, dass:
    - die Befestigungsmittel des Batterieblocks einen Arm (47) beinhalten, der an dem Leuchtblock befestigt ist, wobei der Arm einen Aufnahmesitz (470) für den Batterieblock trägt, der ein Innengewinde beinhaltet, und dadurch, dass das Gehäuse (400) des Batterieblocks ein Außengewinde beinhaltet, das dazu ausgebildet ist, ein Anschrauben des Gehäuses an den Arm (47) zu gewährleisten.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Arm nur an dem vorderen Fenster (45) des Leuchtblocks befestigt ist.
  3. Leuchtvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Gehäuse (400) röhrenförmig ist, um eine Batterie im Format vom Typ 18650 oder 21700 aufzunehmen.
  4. Leuchtvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der optische Block (44) aus einem einzigen Teil aus Kunststoff besteht.
  5. Leuchtvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der hintere Sockel (42) aus einem einzigen Teil aus metallischem Material besteht, das auf einer Seite bearbeitet ist, um die Vertiefung auszuführen.
  6. Leuchtvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das vordere Fenster (45) aus einem einzigen Teil aus metallischem Material besteht.
  7. Leuchtvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der optische Block (44) mehrere optische Elemente beinhaltet und dass die Leiterplatte (43) mindestens zwei Leuchtdioden trägt, die positioniert sind, um ein Lichtsignal durch ein und dasselbe erste optische Element hindurch zu erzeugen.
  8. Leuchtvorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass das erste optische Element eine Rotationssymmetrie um eine Achse aufweist und dass die beiden Leuchtdioden in Bezug auf die Achse dieses ersten optischen Elements versetzt positioniert sind.
  9. Leuchtvorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die beiden Leuchtdioden, die dem ersten optischen Element zugeordnet sind, von der Größe und von der Leistung her unterschiedlich sind.
  10. Stirnlampe (1), beinhaltend einen Gurt (2), der dazu bestimmt ist, um den Kopf einer Person herum angelegt zu werden, und einen Halter (3), der an dem Gurt ausgebildet ist, und eine Leuchtvorrichtung (4), die von dem Halter aufgenommen wird, dadurch gekennzeichnet, dass die Leuchtvorrichtung wie in einem der Ansprüche 1 bis 9 definiert ist.
  11. Stirnlampe nach Anspruch 10, dadurch gekennzeichnet, dass der Halter Mittel zur Befestigung durch Rasten oder Schieben beinhaltet, die dazu ausgebildet sind, mit dem Gehäuse (400) des Batterieblocks (40) zusammenzuwirken.
  12. Lampe für ein Fahrrad, umfassend einen Halter, der dazu ausgebildet ist, am Lenker eines Fahrrads befestigt zu werden, und eine Leuchtvorrichtung, dadurch gekennzeichnet, dass die Leuchtvorrichtung wie in einem der Ansprüche 1 bis 9 definiert ist.
  13. Helmlampe, beinhaltend einen Halter, der dazu ausgebildet ist, an einem Helm befestigt zu werden, und eine Leuchtvorrichtung, dadurch gekennzeichnet, dass die Leuchtvorrichtung wie in einem der Ansprüche 1 bis 9 definiert ist.
EP21183641.6A 2020-07-07 2021-07-05 Leuchtvorrichtung, die einen leuchtblock umfasst Active EP3936756B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2007185A FR3112381B1 (fr) 2020-07-07 2020-07-07 Bloc lumineux et dispositif lumineux intégrant ledit bloc lumineux

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Publication Number Publication Date
EP3936756A1 EP3936756A1 (de) 2022-01-12
EP3936756B1 true EP3936756B1 (de) 2023-12-06
EP3936756C0 EP3936756C0 (de) 2023-12-06

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FR (1) FR3112381B1 (de)

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Publication number Publication date
EP3936756A1 (de) 2022-01-12
EP3936756C0 (de) 2023-12-06
FR3112381A1 (fr) 2022-01-14
FR3112381B1 (fr) 2023-10-20

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