EP4036466A1 - Ensemble de module d'éclairage, lentille et réflecteur avec double fixation à bayon, méthode d'assemblage de l'ensemble et utilisation - Google Patents

Ensemble de module d'éclairage, lentille et réflecteur avec double fixation à bayon, méthode d'assemblage de l'ensemble et utilisation Download PDF

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Publication number
EP4036466A1
EP4036466A1 EP22153368.0A EP22153368A EP4036466A1 EP 4036466 A1 EP4036466 A1 EP 4036466A1 EP 22153368 A EP22153368 A EP 22153368A EP 4036466 A1 EP4036466 A1 EP 4036466A1
Authority
EP
European Patent Office
Prior art keywords
lens
reflector
light
assembly
bayonet mount
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.)
Granted
Application number
EP22153368.0A
Other languages
German (de)
English (en)
Other versions
EP4036466C0 (fr
EP4036466B1 (fr
Inventor
Janwillem VAN MAELE
Peter AMELOOT
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.)
Delta Light NV
Original Assignee
Delta Light NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Delta Light NV filed Critical Delta Light NV
Publication of EP4036466A1 publication Critical patent/EP4036466A1/fr
Application granted granted Critical
Publication of EP4036466C0 publication Critical patent/EP4036466C0/fr
Publication of EP4036466B1 publication Critical patent/EP4036466B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/14—Bayonet-type fastening
    • 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
    • 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 invention relates to an assembly for a lighting device.
  • the invention also relates to a method of assembling an assembly for a lighting device.
  • the invention relates to a use of an assembly according to the first aspect or a method according to the second aspect for interior lighting.
  • Lighting devices are known from the prior art. Lighting devices comprise a light source and often also a lens and/or a reflector for forming a light beam with a beam angle.
  • the beam angle is determined before or at the time of installation of the lighting device depending on a space or a target. For example, in large open spaces, such as receptions, offices and warehouses, wide beam angles of, say, 60° are often chosen. In general lighting in houses, shops and restaurants, a beam angle between, for example, 24° and 40°, is more often chosen. When accentuating, for example, an art object or a product, a small beam angle between, for example, 4° and 19° is recommended.
  • the beam angle is largely determined by the reflector.
  • the reflector is often part of an assembly of a light module and possibly a lens.
  • the assembly is then built into a lighting device.
  • the assembly is assembled by means of screw connections, click-on connections and/or loose screws and bolts.
  • Such a prior art assembly has a number of disadvantages.
  • First of all, several parts and operations are required to be able to attach the light module, reflector and possibly a lens to each other. In doing so, care must be taken to ensure that all parts are arranged in the assembly in a correct order and correctly positioned and aligned. If not, an assembly with an incorrect optical path is obtained, which results in a sub-optimal light output and an uneven and asymmetrical light image. For example, a slanted mounting of a reflector will not produce a nice even and circular light image, but a non-even and elliptical projection of the light will be obtained. This ensures that the assembly cannot be assembled easily, quickly and cheaply.
  • An additional disadvantage of an assembly according to the prior art is that a reflector cannot be easily replaced after assembly and after installation in a lighting device, for instance when a different beam angle is required.
  • a prior art lighting device therefore often uses a complex control mechanism with movable lenses for changing the beam angle.
  • An assembly without a lens does indeed result in a simpler assembly but has the additional disadvantages that the light image is not even when only a reflector is used, for example bright and dark rings can arise, and with only a reflector there is a lot of stray light, so a lighting device with such an assembly has a lower efficiency.
  • the LED lighting module comprises a releasably coupled diffuser and deflector.
  • the present invention aims to solve at least some of the above problems or drawbacks.
  • the present invention relates to an assembly according to claim 1.
  • the major advantage of such an assembly is that the lens is attached to the light module of the assembly by means of a first bayonet mount and the reflector to the lens by means of a second bayonet mount.
  • the light module, the lens and the reflector are simply, quickly and cheaply attached to each other to form the assembly without the use of tools or additional parts, wherein the light source, lens and reflector are automatically located on one optical axis.
  • a nice and even light image is always obtained, and the assembly has a higher efficiency compared to an assembly without a lens.
  • the reflector can be easily replaced without the use of tools, for example to change the beam angle.
  • a specific preferred form relates to an assembly according to claim 2.
  • first and second bayonet mounts are concentric, viewed along the optical axis of the assembly, the light module, lens and reflector are automatically mounted on each other in correct position and aligned on one optical axis.
  • the present invention relates to a method according to claim 11.
  • this method has the advantage that the light module, lens and reflector are easily, quickly and cheaply attached to each other to form the assembly without the use of tools or additional parts.
  • the light source, the lens and the reflector are automatically located on one optical axis, so that a nice and even light image is always obtained and so that the assembly has a higher efficiency compared to an assembly without a lens.
  • the reflector can be easily replaced without the use of tools, for example to change the beam angle.
  • the present invention relates to a use according to claim 15.
  • This use results in improved interior lighting, wherein the interior lighting can be easily adjusted, for example from general lighting to detail lighting of a work of art, by simply and quickly replacing a reflector of interior lighting without tools, in order to thus obtain a different beam angle.
  • the interior lighting produces a nice and even light image, making it suitable for both broad general lighting and accent lighting.
  • a segment means one or more segments.
  • Quoting numerical intervals by endpoints comprises all integers, fractions and/or real numbers between the endpoints, these endpoints included.
  • a "beam angle” is defined as the angle between the axis of a cone-shaped light beam and a direction in which the intensity of the light is half of a maximum intensity of the cone-shaped light beam, wherein the maximum intensity is along the axis of the cone-shaped light beam.
  • the invention relates to an assembly for a lighting device.
  • the assembly comprises a light module, a lens, and a reflector.
  • the light module comprises a light source.
  • the light module comprises connections suitable for electrically connecting the light source.
  • the connections are connectors and/or cables and/or other suitable means.
  • the light source of the light module can be connected directly to the power grid or alternatively to a power supply module.
  • the power supply module is a separate power supply module or is alternatively integrated into the light module.
  • the light source comprises a light aperture for emitting light.
  • the lens is placed over the light aperture of the light source.
  • the lens is configured to receive light from the light aperture and form a cone-shaped light beam having a maximum intensity along the axis of the cone-shaped light beam and having a beam angle ⁇ .
  • the lens is advantageous for directing the light from the light source, so as to obtain a better illumination in the said direction.
  • the reflector comprises an entrance aperture and an exit aperture.
  • the reflector is cone or dome shaped.
  • the exit aperture is the basis of the cone or dome shape.
  • the entrance aperture is parallel to the exit aperture and has a smaller diameter than the exit aperture.
  • the entrance aperture and the exit aperture are transverse to an axis of symmetry of the cone or dome shape.
  • the entrance aperture faces the lens.
  • the reflector is advantageous for reflecting stray light from the cone-shaped light beam from the lens so as to obtain an even higher light intensity in the direction of the axis of the cone-shaped light beam. The reflector thereby helps to determine a final beam angle ⁇ of a cone-shaped light beam from the assembly.
  • the light aperture of the light source, the lens and the entrance aperture and the exit aperture of the reflector are located on one optical axis.
  • the lens this means that the focal point of the lens lies on said optical axis and that the axis of the cone-shaped light beam from the lens substantially coincides with said optical axis.
  • the reflector this means that the optical axis substantially coincides with the axis of symmetry transverse to the entrance aperture and the exit aperture.
  • a bayonet mount is a fastener known from the prior art, wherein two objects are fastened together by means of pins, cams or other suitable protrusions on a first object and complementary grooves, slots or other suitable recesses in a second object by rotation through a limited angle, wherein the pins, cams or other suitable protrusions are received in the complementary grooves, slots or other suitable recesses.
  • the cams, pins or other suitable protrusion of the first bayonet mount are provided on the lens or alternatively on the light module.
  • the complementary grooves, slots or other suitable recesses are provided on the light module.
  • the complementary grooves, slots or other suitable recesses are provided on the lens.
  • the cams, pins or other suitable protrusion of the second bayonet mount are provided on the lens or alternatively on the reflector.
  • the complementary grooves, slots or other suitable recesses are provided on the reflector.
  • the complementary grooves, slots or other suitable recesses are provided on the lens.
  • the light module, the lens and the reflector are simply, quickly and cheaply attached to each other to form the assembly without the use of tools or additional parts, wherein the light source, lens and reflector are automatically located on one optical axis.
  • the reflector can easily be replaced without the use of tools, for instance to change the final beam angle ⁇ of the cone-shaped light beam from the assembly.
  • the reflector is formed from aluminum on which a reflective layer has been evaporated.
  • An aluminum reflector is advantageous because of heat resistance, low weight and simplicity of manufacture of the reflector.
  • the reflector is a plastic injection molded part on which a reflective layer is applied.
  • a plastic reflector is advantageous because of cost.
  • the lens comprises both complementary grooves, slots or other suitable recesses for the first and second bayonet mounts.
  • the light module comprises pins, cams or other suitable protrusions for the first bayonet mount and that the reflector comprises pins, cams or other suitable protrusions for the second bayonet mount.
  • This embodiment is advantageous in combination with a previously described embodiment wherein a reflector is formed from aluminum because pins, cams or other suitable protrusions can be readily provided in the plane of the entrance aperture of the reflector by, for example, milling or punching the pins, cams or other suitable protrusions at the periphery of the entrance aperture.
  • Providing complementary grooves, slots or other suitable recesses on a reflector requires complex operations.
  • a similar advantage applies if the lens is attached to a periphery of the light module, for instance to an outer circumference of a printed circuit board or a plastic holder for a light source.
  • the first and second bayonet mounts are concentric when viewed along the direction of the optical axis. This is advantageous because the light module, lens and reflector are automatically attached to each other in the correct position and aligned on one optical axis. Due to the concentricity, it is impossible to fix the reflector and the light module to the wrong side of the lens or to fix a reflector directly to the light module, because the first and second bayonet mounts have different sizes. It is also advantageous that the order of attaching is not important.
  • the second bayonet mount viewed along the direction of the optical axis, is located within the first bayonet mount. This is advantageous for obtaining a minimum size of the assembly in a direction transverse to the optical axis, especially in combination with a previously described embodiment wherein pins, cams or other suitable protrusions are provided on the periphery of the entrance aperture of the reflector.
  • the lens comprises arms, wherein the arms extend in a direction transverse to the optical axis.
  • the arms are not part of the optical path of the lens.
  • the first bayonet mount between the lens and the light module is formed at ends of the arms.
  • the lens is a convex lens.
  • a convex lens is advantageous for collecting light from a small light source, for example an LED, and for bundling the light.
  • the light source is preferably at a distance equal to the focal length of the convex lens.
  • the lens and light aperture form a collimator.
  • the lens is formed from polymethyl methacrylate (PMMA). This is advantageous for obtaining a light lens with good light transmittance.
  • PMMA polymethyl methacrylate
  • the first and second bayonet mounts have the same direction of rotation for locking. Accordingly, the first and second bayonet mounts have the same direction of rotation for unlocking, which is opposite to the direction of rotation for locking.
  • the direction of rotation is preferably about the optical axis.
  • a twist angle for unlocking and locking the first bayonet mount is greater than a twist angle for unlocking and locking the second bayonet mount. This is advantageous in order to avoid the lens becoming detached from the light module when the reflector is replaced.
  • a bayonet mount comprises a detent and a click system.
  • the detent is an obstruction in the complementary grooves, slots or other suitable recesses for the pins, cams or other suitable protrusions.
  • the detent is a bulge on the pins, cams or other suitable protrusions.
  • the detent prevents further rotation of, for example, the lens relative to the light module or the reflector relative to the lens after locking the bayonet mount, whereby the bayonet mount would be undesirably unlocked again by further rotation.
  • the click system comprises a fixed guide element on a first object and a flexible element on a second object.
  • the first object and the second object refer to the objects that are attached to each other by means of the bayonet mount, for example the lens on the light module or the reflector on the lens.
  • the flexible element is displaceable in a first direction transverse to the first direction of rotation upon locking the bayonet mount by rotation in a first direction of rotation.
  • the flexible element is configured to move after locking the bayonet mount in a second direction, opposite to the first direction.
  • the flexible element is displaceable in the first direction by rotation in a second direction of rotation, opposite to the first direction of rotation, when the bayonet mount is unlocked.
  • the flexible element is configured to move after unlocking the bayonet mount in the second direction.
  • the click system is advantageous because a resistance is overcome when the flexible element is moved, which gives a clear indication that the bayonet mount is locked. The resistance also prevents the undesired unlocking of the bayonet mount, for example by vibration or by contact.
  • a click system wherein the flexible element can also be moved in the first direction when the bayonet mount is unlocked, is advantageous because the click system does not prevent the replacement of a part of the assembly.
  • first bayonet mount only the second bayonet mount, or both the first and second bayonet mounts may comprise a detent and a click system.
  • the reflector has a beam angle of at least 16° and at most 47°. This range is sufficient for general lighting and accent lighting in, for example, homes, restaurants and shops.
  • the reflector preferably has a beam angle of at least 16° and at most 20°.
  • a reflector preferably has a beam angle of at least 43° and at most 47°.
  • a general lighting reflector has a beam angle of at least 28° and at most 32°.
  • the light source is an LED.
  • An LED is advantageous because of its limited dimensions and a high energy efficiency compared to, for example, halogen lamps or incandescent lamps.
  • the light source is an OLED.
  • the light module comprises an LED holder and a metal body.
  • the LED holder is preferably formed from plastic.
  • the LED holder is formed from one or more printed circuit boards, which may or may not be combined with a plastic body.
  • the LED holder comprises contact surfaces, suitable for electrical contact between LED and LED holder. The LED is clamped between the LED holder and the metal body. As a result, the LED is automatically electrically connected to the LED holder.
  • the contact surfaces of the LED holder are preferably spring actuated to ensure good contact.
  • the metal body is advantageous for cooling the LED.
  • a thermal pad is placed between the metal body and the LED, for optimal transfer of heat from the LED to the metal body.
  • the thermal path also provides electrical insulation between the LED and the metal body.
  • the LED holder comprises connections suitable for electrically connecting the LED holder. These connections are the connections of the light module as in a previously described embodiment.
  • the lens is attached to the LED holder using the first bayonet mount.
  • the invention in a second aspect, relates to a method of assembling an assembly for a lighting device.
  • the method comprises the steps of:
  • the lens is mounted on the light module by means of a first light module and the reflector module is mounted on the lens by means of a second bayonet mount.
  • This method is advantageous because the light module, the lens and the reflector are simply, quickly and cheaply attached to each other to form the assembly without the use of tools or additional parts.
  • the light source, the lens and the reflector are automatically located on one optical axis, so that a nice and even light image is always obtained and so that the assembly has a higher efficiency compared to an assembly without a lens.
  • the reflector can easily be replaced without the use of tools, for instance to change a final beam angle ⁇ of a cone-shaped light beam from the assembly.
  • the lens when mounting the lens on the light module, the lens is rotated in a first direction to lock the first bayonet mount, and when mounting the reflector on the lens, the reflector is rotated in the same first direction to lock the second bayonet mount.
  • This embodiment is advantageous in order to avoid that, after mounting, for example, the lens on the light module, the lens would be unmounted from the light module when mounting the reflector on the lens.
  • the method comprises the additional step of mounting the assembly in a lighting device.
  • a lighting device is obtained whose light from the light source is bundled in a cone-shaped beam.
  • a beam angle of a lighting device is changed by removing the reflector from the assembly by rotating the reflector in a second direction, opposite to the first direction, and by mounting a second reflector with a different beam angle on the lens of the assembly.
  • the beam angle of the lighting device is the final beam angle ⁇ .
  • the beam angle of the reflector is a beam angle ⁇ .
  • This beam angle ⁇ can be equal to or different from the beam angle ⁇ of the lens.
  • a different beam angle ⁇ of the second reflector means that it is different from the beam angle ⁇ of the first reflector.
  • an assembly according to the first aspect is preferably assembled by performing a method according to the second aspect and that a method according to the second aspect is preferably configured for assembling an assembly according to the first aspect.
  • a method according to the second aspect is preferably configured for assembling an assembly according to the first aspect.
  • the invention relates to the use of an assembly according to the first aspect or a method according to the second aspect for interior lighting.
  • This use results in improved interior lighting, wherein the interior lighting can be easily adjusted, for example from general lighting to detail lighting of a work of art, by simply and quickly replacing a reflector of interior lighting without tools, in order to thus obtain a different beam angle ⁇ .
  • the interior lighting produces a nice and even light image, making it suitable for both broad general lighting and accent lighting.
  • Figure 1 shows an exploded view of an assembly according to an embodiment of the present invention.
  • the assembly comprises a reflector (1), a lens (2) and a light module (3).
  • the light module (3) comprises an LED holder (4) and a metal body.
  • the metal body is not shown in Figure 1 .
  • the light module further comprises an LED (5) as light source.
  • the LED (5) comprises a light aperture (11).
  • the LED (5) is clamped between the LED holder (4) and the metal body.
  • a thermal pad (6) is placed between the LED (5) and the metal body, suitable for an optimal transfer of heat from the LED (4) to the metal body.
  • the LED (5) has contact surfaces (10).
  • the LED holder (4) also has contact surfaces at corresponding positions. These contact surfaces are not visible in the figure. By clamping the LED (5) between the LED holder (4) and the metal body, the LED (5) and the LED holder (4) are automatically electrically connected.
  • the LED holder (4) comprises cables (7) as connections, suitable for electrically connecting the LED holder (4).
  • the LED holder (4) is attached to the metal body using screws (9).
  • the lens (2) is attached to the light module (3) by means of a first bayonet mount.
  • the first bayonet mount comprises cams (8) on the LED holder (4) and complementary slots (12) on the lens (2).
  • the first bayonet mount between the lens (2) and the light module (3) is formed at the ends of arms (13).
  • the lens (2) is placed over the light aperture (11).
  • the first bayonet mount comprises a detent (20).
  • the first bayonet mount comprises a click system.
  • the click system comprises a fixed guide element (18) and a flexible element.
  • the flexible element in the first bayonet mount is the complementary slots (12).
  • the reflector (1) has an entrance aperture (16) and an exit aperture (17).
  • the entrance aperture (16) faces the lens (2).
  • the light aperture (11) of the LED (5), the lens (2) and the entrance aperture (16) and exit aperture (17) of the reflector (1) are located on one optical axis. This optical axis is transverse to and in the center of the light aperture (11) of the LED (5).
  • the reflector (1) is attached to the lens (2) by means of a second bayonet mount.
  • the second bayonet mount comprises cams (15) in the plane of the entrance aperture (16) of the reflector (1) and complementary slots (14) on the lens (2).
  • the complementary slots (14) on the lens are formed against an upper surface of the LED holder (4).
  • the second bayonet mount comprises a detent (19).
  • the first and second bayonet mounts are concentric when viewed along the optical axis.
  • the second bayonet mount viewed along the optical axis, is located within the first bayonet mount.
  • Figure 2A , Figure 2B and Figure 2C show a bottom view during part of the assembly of an assembly according to an embodiment of the present invention.
  • Figure 2A shows the assembly for mounting the lens (2) or the reflector (1). Only the light module (3) is visible from the bottom.
  • the reflector (1) is already attached to the lens (2) by means of the second bayonet mount.
  • the lens (2) with the reflector (1) attached thereto is placed on the light module (3), but the first bayonet mount is not yet locked.
  • the cams (8) of the light module (3) are still outside the complementary slots (12) of the lens (2).
  • the arrows indicate the direction of rotation for locking the first bayonet mount.
  • the first bayonet mount is locked.
  • the complementary slots (12) of the lens are rotated up to the detent (20).
  • the cams (8) are received in the complementary slots (12).
  • the complementary slots (12) are displaced by the fixed guide elements (18) in a first direction transverse to the direction of rotation indicated by the arrows in Figure 2B and in the plane of the LED holder (4), after which the complementary slots (12) after the twisting are displaced back in a second direction, opposite to the first direction.
  • a resistance has been overcome, which gives a clear indication that the first bayonet mount is locked. The resistance also prevents the undesired unlocking of the first bayonet mount.
  • Figure 3 shows a side view of an assembly according to an embodiment of the present invention.
  • the embodiment in Figure 3 is the same as the embodiment in Figure 1 .
  • the reflector (1) is bisected in a direction transverse to the plane of the LED holder (4).
  • the assembly is shown as in Figure 2C.
  • the reflector (1) is already mounted on the lens (2) with the aid of the second bayonet mount.
  • the lens (2) with the reflector (1) attached thereto is placed on the light module (3), and the first bayonet mount is locked.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP22153368.0A 2021-01-29 2022-01-26 Ensemble de module d'éclairage, lentille et réflecteur avec double fixation à bayon, méthode d'assemblage de l'ensemble et utilisation Active EP4036466B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE20215069A BE1029067B1 (nl) 2021-01-29 2021-01-29 Samenstel van lichtmodule, lens en reflector met dubbele bajonetsluiting, werkwijze voor assemblage van samenstel en gebruik ervan

Publications (3)

Publication Number Publication Date
EP4036466A1 true EP4036466A1 (fr) 2022-08-03
EP4036466C0 EP4036466C0 (fr) 2024-08-07
EP4036466B1 EP4036466B1 (fr) 2024-08-07

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EP22153368.0A Active EP4036466B1 (fr) 2021-01-29 2022-01-26 Ensemble de module d'éclairage, lentille et réflecteur avec double fixation à bayon, méthode d'assemblage de l'ensemble et utilisation

Country Status (2)

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EP (1) EP4036466B1 (fr)
BE (1) BE1029067B1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110007515A1 (en) * 2010-01-12 2011-01-13 Bridgelux, Inc. Light-emitting device mounting fixture
US20130033872A1 (en) * 2010-11-15 2013-02-07 Cree, Inc. Lighting fixture
US20130083525A1 (en) 2011-10-04 2013-04-04 Samsung Electronics Co., Ltd. Light emitting diode lighting module
ITBS20120050A1 (it) * 2012-04-04 2013-10-05 Targetti Sankey Spa Apparecchio di illuminazione

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110007515A1 (en) * 2010-01-12 2011-01-13 Bridgelux, Inc. Light-emitting device mounting fixture
US20130033872A1 (en) * 2010-11-15 2013-02-07 Cree, Inc. Lighting fixture
US20130083525A1 (en) 2011-10-04 2013-04-04 Samsung Electronics Co., Ltd. Light emitting diode lighting module
ITBS20120050A1 (it) * 2012-04-04 2013-10-05 Targetti Sankey Spa Apparecchio di illuminazione

Also Published As

Publication number Publication date
EP4036466C0 (fr) 2024-08-07
BE1029067A1 (nl) 2022-08-23
BE1029067B1 (nl) 2022-08-29
EP4036466B1 (fr) 2024-08-07

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