EP2993393B1 - Lighting apparatus - Google Patents
Lighting apparatus Download PDFInfo
- Publication number
- EP2993393B1 EP2993393B1 EP15183240.9A EP15183240A EP2993393B1 EP 2993393 B1 EP2993393 B1 EP 2993393B1 EP 15183240 A EP15183240 A EP 15183240A EP 2993393 B1 EP2993393 B1 EP 2993393B1
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- EP
- European Patent Office
- Prior art keywords
- lighting
- fact
- support body
- stretch
- lighting apparatus
- 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.)
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Images
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
- F21V7/00—Reflectors for light sources
- F21V7/0083—Array of reflectors for a cluster of light sources, e.g. 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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/26—Pivoted arms
- F21V21/28—Pivoted arms adjustable in more than 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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/30—Pivoted housings or frames
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
-
- 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
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/048—Optical design with facets structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
-
- 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 lighting apparatus, particularly to a removable lighting apparatus.
- Lighting apparatus are used, such as removable spotlights, to illuminate indoor and outdoor environments in special circumstances requiring temporary and/or exceptional illumination of areas which are not normally illuminated.
- Known spotlights generally have a metal support body similar to a cap inside which one or more light sources and the electrical circuits thereof are placed. These spotlights have coupling devices which allow to be fixed in a removable manner to walls or means of transport to be used in several environments and for different purposes.
- spotlights are used which have one or more traditional light sources inside, such as incandescent lamps, gas discharge lamps and the like.
- the operation of these apparatus has been improved by making LED spotlights, much more efficient and long-lasting than traditional light sources.
- One drawback is related to the temperature these apparatus can reach during operation.
- LEDs in fact, are very sensitive to heat and excessive operating temperatures lead to a shortening of lifespan or to the destruction of the LED itself.
- the support body must be designed in such a way as to ensure a sufficient heat dissipation.
- Known spotlights are designed in such a way as to have one or more light sources of the same type and arranged to illuminate the environment according to a precise mode of use.
- the document US 2013/0215611A illustrates a lighting system and method.
- the lighting system includes a hybrid canopy that can provide an optimum light beam shape for a number of different lighting applications.
- the hybrid canopy is equipped with lighting clusters of different types, thereby enabling a broader beam output.
- a drawback of the lighting system described in the document US 2013/0215611 is that it has attaching means that allow a difficult attachment of the lighting system to a bearing structure.
- the main aim of the present invention is to provide a lighting apparatus that allows to have different lighting modes and to switch from one mode to another in a simple and fast manner.
- Another object of the present invention is to provide an apparatus that allows to overcome the mentioned drawbacks of the prior art within the ambit of a simple, rational, easy, effective to use and affordable solution.
- reference number 1 globally indicates a lighting apparatus.
- the lighting apparatus 1 has a support body 2 and at least a lighting device 3a, 3b associated with the support body 2.
- the apparatus 1 has a plurality of lighting devices 3a, 3b, in particular, in the present embodiment, the number of lighting devices 3a, 3b is equal to six. Embodiments are not ruled out wherein the number of such devices is greater or lesser than 6.
- a lighting device 3a, 3b consists of an emitting element 4a, 4b and a lighting appliance 5a, 5b.
- the emitting element 4a, 4b is able to emit light radiation and is composed of, e.g., a LED light, but alternative embodiments are not ruled out.
- the lighting appliance 5a, 5b is advantageously a casing able to define and direct the radiation emitted by the emitting element 4a, 4b.
- the lighting appliance 5a, 5b is a casing the surface of which draws a paraboloid at the apex of which is placed an emitting element 4a, 4b and the axis of symmetry of which comes out in a direction orthogonal to the plane on which the emitting elements 4a, 4b lie.
- Embodiments cannot be ruled out wherein the lighting appliance 5a, 5b has alternative forms.
- At least a first lighting device 3a is composed of a first emitting element 4a and a first lighting appliance 5a.
- the first lighting appliance 5a is associated with the first emitting element 4a and has a first inner polygonal surface 6a able to diffuse light radiation.
- the first inner surface 6a is composed of a set of quadrangular polygons which are positioned side by side to each other.
- the polygons are elements coated with a reflective material and are directed so as to deflect the incident radiation towards the other polygons which, in turn, further reflect the incident radiation by amplifying and diffusing the light radiation emitted by the LED.
- the light beam exiting from the first lighting appliance 5a therefore, is a beam of diffused light, suitable to illuminate large areas.
- the apparatus 1 also has at least a second lighting device 3b comprising a second emitting element 4b able to emit light radiation and a second lighting appliance 5b.
- the second lighting appliance 5b is also associated with the second emitting element 4b, but in this case has a second inner surface 6b substantially smooth and able to direct the light radiation produced by the LED.
- the light beam exiting from the second lighting appliance 5b is a well-defined light beam, suitable to illuminate circumscribed and limited areas in a substantially punctual manner.
- two out of six lighting devices 3a, 3b present in the apparatus 1 are first lighting devices 3a and are arranged in a substantially peripheral position, so as to maximize the diffused light produced.
- the other four devices are second lighting devices 3b and are arranged in a substantially central position, so as to obtain a well-defined single light beam which can be directed towards a point to illuminate.
- the first and second lighting appliances 5a, 5b are made in a single body piece.
- the single body piece has a substantially plate-shaped element 7 comprising convexities defining the lighting appliances 5a, 5b.
- convexities are the outer surfaces of the lighting appliances 5a, 5b and are extruded from the substantially plate-shaped element 7.
- the substantially plate-shaped element 7 has a shape and dimensions such as to be accommodated inside the support body 2.
- the support body 2 comprises a cap element 8 able to house the first and second lighting devices 3a, 3b and related electrical components.
- the cap element 8 has a bottom wall 9 and a plurality of side walls 10 which, besides defining the perimeter edge of the support body 2, also define the depth of the cap element 8.
- the cap element 8 is closed on top by a transparent element 11, conveniently glass, with the substantially plate-shaped element 7 inserted to measure inside said cap.
- the transparent element 11 protects the internal parts of the apparatus 1 from external agents such as water, dust, etc..
- a printed circuit board 12 on which the emitting elements 4a, 4b are positioned.
- the printed circuit board 12 is also insertable to measure in the cap element 8 and is fixed to the bottom wall 9 by means of connecting elements 13, e.g. star screws or the like.
- the printed circuit board 12 also comprises a through opening 14 able to make the electrical connections necessary for the operation of LEDs pass through. To allow greater heat dissipation a thermo-conductive resin is applied between the support body 2 and the printed circuit board 12.
- the cap element 8 also has an outer surface 9a with ribs 15, 16 able to reinforce the support body 2 and facilitate heat dissipation.
- the ribs 15, 16, in fact, besides providing thicknesses that increase the resistance of the support body 2, increase the outer surface 9a in contact with air, promoting heat exchange between the support body 2 and the air itself.
- the ribs 15, 16 are divided into first ribs 15 and second ribs 16.
- the first ribs 15 have a first stretch 15a substantially straight which extends on one of the side walls 10, a second stretch 15b substantially curved which extends on the bottom wall 9 and connected to the first stretch 15a, and a third stretch 15c substantially straight which extends on an adjacent side wall and connected to the second stretch 15b.
- the second ribs 16 have a first stretch 16a substantially straight which extends on one of the side walls 10 and a second stretch 16b which extends on the bottom wall 9 and connected to the first stretch 16a.
- the ribs 15, 16 so arranged promote circulation of air between the ribs themselves, thus increasing the ability of the support body 2 to dissipate heat.
- the attachment medium 17 is composed of a housing seat able to accommodate the end part of an electric cable.
- Embodiments with different connections are not ruled out comprising, e.g., an integrated cable or other forms of connection.
- the cap element 8 is made of plastic material able to disperse heat.
- the cap element 8 is made of plastic which is obtained from a polymer composition such as to ensure structural resistance for the illuminance required and relative operating temperatures, as well as to ensure heat dissipation such as to keep the temperature within acceptable limits for LEDs operation.
- the apparatus 1 comprises an attachment device 18 of the support body 2 to a bearing structure such as a fixed wall or the chassis of a means of transport, etc.
- the attachment device 18 comprises a base 19 stably associable with the bearing structure and articulation means 23, 24, 25 interposed between the base 19 and the support body 2.
- the latter allow the support body 2 to rotate with respect to the bearing structure.
- the articulation means 23, 24, 25 allow to rotate the support body 2 around a second and a third direction 21 and 22 mutually orthogonal to the first direction 20.
- the articulation means 23, 24, 25 comprise a first cylindrical surface 23, an intermediate element 24 and a hinging assembly 25.
- the first cylindrical surface 23 is formed on the base 19.
- the base 19 has a hole 26 able to make a fixing screw 27, 28, 29, 30 pass to measure.
- the fixing screw 27, 28, 29, 30 has a prismatic head 27 and is advantageously a traditional bolt having a prismatic hexagonal head 27, a threaded screw 28, a screwable nut 29 and washers 30 placed between the nut 29 and the base 19.
- the intermediate element 24 has a second cylindrical surface 33 substantially complementary to the first cylindrical surface 23 and sliding at least in part on it so as to make the support body rotate around the second direction 21.
- the intermediate element 24 is "U"-shaped, with a central part 31 and two side parts 32.
- the central part 31 is curved and allows a rotational sliding of the second cylindrical surface 33 on the first cylindrical surface 23.
- the central part 31 has a slot 34 able to make the fixing screw 27, 28, 29, 30 pass through.
- the side parts 32 have two gaps 35 able to make a pin 29a, 30a, 36 pass through.
- the pin 29a, 30a, 36 is composed of a bolt with smooth shank 36 and relative nut 29a and washer 30a.
- the bolt is part of the hinging assembly 25 which is interposed between the support body 2 and the intermediate element 24.
- the support body 2 has a cylindrical hollow extrusion 37 aligned with the gaps 35 along the third direction 22 and secured to the intermediate element 24 by means of the pin 29a, 30a, 36 inserted into the gaps 35 and in the hollow extrusion 37.
- the hinging assembly 25 allows the support body 2 to rotate with respect to the third direction 22.
- Embodiments are not ruled out wherein the articulation means 23, 24, 25 are made with different solutions allowing rotation in the three directions 20, 21, 22.
- the attachment device 18 To lock the position of the support body 2, the attachment device 18 has a "C"-shaped fixing element 38 and has a prismatic housing seat 39.
- This seat has a hexagonal outline and is able to be coupled to the head 27 of the bolt so as to prevent rotations around the first direction 20.
- the fixing element 38 is able to embrace at least in part the intermediate element 24 and the base 19, so as to prevent rotations around the second direction 21.
- the apparatus 1 fixed to a bearing structure by means of the attachment device 18, is directed towards the area or the point to be illuminated by adjusting the articulation means 23, 24, 25 and is connected to the electrical mains.
- a light beam is generated by means of which the area or the selected point are illuminated.
- the first lighting devices 3a are switched on, so the light radiation is amplified and diffused in such a way that the apparatus 1 illuminates an extended area.
- the second lighting devices 3b are switched on, so the light radiation is concentrated in a well-defined beam in such a way that the apparatus 1 illuminates a precise point.
- One or more mixed lighting modes cannot be ruled out wherein some or all first and second lighting devices 3a, 3b are switched on.
- This increase in temperature is limited by the particular shape of the outer surface 9a wherein the ribs 15, 16 are arranged in such a way as to promote air circulation and heat dissipation.
- the apparatus also ensures an effective heat dissipation due to the particular arrangement of the ribs.
- the present invention allows to have an apparatus easy to position and adjustable in a practical and simple manner thanks to the special attachment device.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
- The present invention relates to a lighting apparatus, particularly to a removable lighting apparatus.
- Lighting apparatus are used, such as removable spotlights, to illuminate indoor and outdoor environments in special circumstances requiring temporary and/or exceptional illumination of areas which are not normally illuminated.
- Known spotlights generally have a metal support body similar to a cap inside which one or more light sources and the electrical circuits thereof are placed. These spotlights have coupling devices which allow to be fixed in a removable manner to walls or means of transport to be used in several environments and for different purposes.
- Several types of these apparatus exist which, besides distinguishing by shape and size, can accommodate various types of light sources.
- In particular, spotlights are used which have one or more traditional light sources inside, such as incandescent lamps, gas discharge lamps and the like. The operation of these apparatus has been improved by making LED spotlights, much more efficient and long-lasting than traditional light sources.
- The latter, in fact, have some drawbacks both as regards efficiency, given that by their nature they tend to opacify the glass covering them, both as regards their lifespan, since they last less than LEDs.
- Even known LED fixtures have some drawbacks.
- One drawback is related to the temperature these apparatus can reach during operation.
- LEDs, in fact, are very sensitive to heat and excessive operating temperatures lead to a shortening of lifespan or to the destruction of the LED itself.
- For this reason, in known LED spotlights the support body must be designed in such a way as to ensure a sufficient heat dissipation.
- This is achieved by increasing the surface of the body in contact with air and hence with a larger and heavier body.
- This drawback is worsened by the fact that the bodies of known spotlights are commonly made of a metal material, and therefore there would be a considerable increase in the weight of the spotlight with a consequent reduction in manageability and convenience, as well as an increase in the manufacturing cost.
- Another drawback of known spotlights is related to the versatility and flexibility of use.
- Known spotlights, in fact, are designed in such a way as to have one or more light sources of the same type and arranged to illuminate the environment according to a precise mode of use.
- This way it is impossible to switch from one lighting mode to another using the same spotlight, but a different spotlight has to be used for each type of lighting one wish to make.
- For example, as it often happens in night work in the fields, or as is the case of lighting of theater scenes and the like, if there is the need to switch from a diffuse lighting mode, wherein a large area is illuminated, to a punctual lighting mode, wherein a small area is lit, two spotlights have to be prepared.
- The document
US 2013/0215611A illustrates a lighting system and method. Specifically, the lighting system includes a hybrid canopy that can provide an optimum light beam shape for a number of different lighting applications. The hybrid canopy is equipped with lighting clusters of different types, thereby enabling a broader beam output. - A drawback of the lighting system described in the document
US 2013/0215611 is that it has attaching means that allow a difficult attachment of the lighting system to a bearing structure. - The main aim of the present invention is to provide a lighting apparatus that allows to have different lighting modes and to switch from one mode to another in a simple and fast manner.
- Another aim of the present invention is to provide an apparatus that allows effective heat dissipation ensuring illuminance suitable for the user's purposes. Another object of the present invention is to provide an apparatus which is easy to position and adjustable in a convenient and simple manner.
- Another object of the present invention is to provide an apparatus that allows to overcome the mentioned drawbacks of the prior art within the ambit of a simple, rational, easy, effective to use and affordable solution.
- The objects stated above are achieved by the present lighting apparatus having the characteristics of claim 1.
- Other characteristics and advantages of the present invention will become better evident from the description of a preferred but not exclusive embodiment of a lighting apparatus, illustrated by way of an indicative, but non-limiting, example in the accompanying drawings in which:
-
Figure 1 is a front axonometric view of the apparatus according to the invention; -
Figure 2 is a rear axonometric view of the apparatus according to the invention; -
Figure 3 is an exploded view of the apparatus according to the invention. - With particular reference to such illustrations, reference number 1 globally indicates a lighting apparatus.
- The lighting apparatus 1 has a
support body 2 and at least alighting device support body 2. - The apparatus 1 has a plurality of
lighting devices lighting devices - A
lighting device element lighting appliance - The emitting
element - The
lighting appliance element - In the present embodiment, the
lighting appliance emitting element emitting elements - Embodiments cannot be ruled out wherein the
lighting appliance - According to the invention at least a
first lighting device 3a is composed of afirst emitting element 4a and afirst lighting appliance 5a. - The
first lighting appliance 5a is associated with thefirst emitting element 4a and has a first innerpolygonal surface 6a able to diffuse light radiation. - As illustrated in
Figure 1 , the firstinner surface 6a is composed of a set of quadrangular polygons which are positioned side by side to each other. - In particular, the polygons are elements coated with a reflective material and are directed so as to deflect the incident radiation towards the other polygons which, in turn, further reflect the incident radiation by amplifying and diffusing the light radiation emitted by the LED.
- The light beam exiting from the
first lighting appliance 5a, therefore, is a beam of diffused light, suitable to illuminate large areas. - The apparatus 1 also has at least a
second lighting device 3b comprising a second emittingelement 4b able to emit light radiation and asecond lighting appliance 5b. - The
second lighting appliance 5b is also associated with thesecond emitting element 4b, but in this case has a secondinner surface 6b substantially smooth and able to direct the light radiation produced by the LED. - In such an inner surface, the reflection phenomenon of the incident radiation is minimized and there is no significant amplification and diffusion of the light emitted by the LED.
- The light beam exiting from the
second lighting appliance 5b, therefore, is a well-defined light beam, suitable to illuminate circumscribed and limited areas in a substantially punctual manner. - As shown in
Figure 1 , two out of sixlighting devices first lighting devices 3a and are arranged in a substantially peripheral position, so as to maximize the diffused light produced. - The other four devices are
second lighting devices 3b and are arranged in a substantially central position, so as to obtain a well-defined single light beam which can be directed towards a point to illuminate. - In the present embodiment, the first and
second lighting appliances - In particular, the single body piece has a substantially plate-
shaped element 7 comprising convexities defining thelighting appliances - More particularly, convexities are the outer surfaces of the
lighting appliances shaped element 7. - The substantially plate-
shaped element 7 has a shape and dimensions such as to be accommodated inside thesupport body 2. - In particular, the
support body 2 comprises acap element 8 able to house the first andsecond lighting devices - The
cap element 8 has a bottom wall 9 and a plurality ofside walls 10 which, besides defining the perimeter edge of thesupport body 2, also define the depth of thecap element 8. - The
cap element 8 is closed on top by a transparent element 11, conveniently glass, with the substantially plate-shaped element 7 inserted to measure inside said cap. - The transparent element 11 protects the internal parts of the apparatus 1 from external agents such as water, dust, etc..
- Between the substantially plate-
shaped element 7 and the bottom wall 9 is placed a printedcircuit board 12 on which theemitting elements - As illustrated in
Figure 3 , the printedcircuit board 12 is also insertable to measure in thecap element 8 and is fixed to the bottom wall 9 by means of connectingelements 13, e.g. star screws or the like. - The printed
circuit board 12 also comprises a through opening 14 able to make the electrical connections necessary for the operation of LEDs pass through. To allow greater heat dissipation a thermo-conductive resin is applied between thesupport body 2 and the printedcircuit board 12. - The
cap element 8 also has anouter surface 9a withribs support body 2 and facilitate heat dissipation. - The
ribs support body 2, increase theouter surface 9a in contact with air, promoting heat exchange between thesupport body 2 and the air itself. According to the invention, theribs first ribs 15 andsecond ribs 16. - With reference to
Figure 2 , thefirst ribs 15 have afirst stretch 15a substantially straight which extends on one of theside walls 10, asecond stretch 15b substantially curved which extends on the bottom wall 9 and connected to thefirst stretch 15a, and athird stretch 15c substantially straight which extends on an adjacent side wall and connected to thesecond stretch 15b. - The
second ribs 16 have afirst stretch 16a substantially straight which extends on one of theside walls 10 and asecond stretch 16b which extends on the bottom wall 9 and connected to thefirst stretch 16a. - The
ribs support body 2 to dissipate heat. Still with reference toFigure 2 , in correspondence of theouter surface 9a is placed anattachment medium 17 able to connect the apparatus to the electrical mains. - In the present embodiment, the
attachment medium 17 is composed of a housing seat able to accommodate the end part of an electric cable. Embodiments with different connections are not ruled out comprising, e.g., an integrated cable or other forms of connection. - The
cap element 8 is made of plastic material able to disperse heat. Advantageously, thecap element 8 is made of plastic which is obtained from a polymer composition such as to ensure structural resistance for the illuminance required and relative operating temperatures, as well as to ensure heat dissipation such as to keep the temperature within acceptable limits for LEDs operation. - The apparatus 1 comprises an
attachment device 18 of thesupport body 2 to a bearing structure such as a fixed wall or the chassis of a means of transport, etc. In the present embodiment, theattachment device 18 comprises a base 19 stably associable with the bearing structure and articulation means 23, 24, 25 interposed between the base 19 and thesupport body 2. - The latter allow the
support body 2 to rotate with respect to the bearing structure. - In particular, once defined a
first direction 20 with respect to which thebase 19 has to be secured, the articulation means 23, 24, 25 allow to rotate thesupport body 2 around a second and athird direction first direction 20. The articulation means 23, 24, 25 comprise a firstcylindrical surface 23, anintermediate element 24 and a hingingassembly 25. - The first
cylindrical surface 23 is formed on thebase 19. - The
base 19 has ahole 26 able to make a fixingscrew - In the present embodiment, the fixing
screw prismatic head 27 and is advantageously a traditional bolt having a prismatichexagonal head 27, a threadedscrew 28, ascrewable nut 29 andwashers 30 placed between thenut 29 and thebase 19. Theintermediate element 24 has a secondcylindrical surface 33 substantially complementary to the firstcylindrical surface 23 and sliding at least in part on it so as to make the support body rotate around thesecond direction 21. - In particular, the
intermediate element 24 is "U"-shaped, with acentral part 31 and twoside parts 32. - The
central part 31 is curved and allows a rotational sliding of the secondcylindrical surface 33 on the firstcylindrical surface 23. - Moreover, the
central part 31 has aslot 34 able to make the fixingscrew - The
side parts 32 have twogaps 35 able to make apin - In the present embodiment, the
pin smooth shank 36 andrelative nut 29a andwasher 30a. - The bolt is part of the hinging
assembly 25 which is interposed between thesupport body 2 and theintermediate element 24. - In particular, the
support body 2 has a cylindricalhollow extrusion 37 aligned with thegaps 35 along thethird direction 22 and secured to theintermediate element 24 by means of thepin gaps 35 and in thehollow extrusion 37. - The hinging
assembly 25 allows thesupport body 2 to rotate with respect to thethird direction 22. - Embodiments are not ruled out wherein the articulation means 23, 24, 25 are made with different solutions allowing rotation in the three
directions - To lock the position of the
support body 2, theattachment device 18 has a "C"-shapedfixing element 38 and has aprismatic housing seat 39. - This seat has a hexagonal outline and is able to be coupled to the
head 27 of the bolt so as to prevent rotations around thefirst direction 20. - The fixing
element 38 is able to embrace at least in part theintermediate element 24 and thebase 19, so as to prevent rotations around thesecond direction 21. - The fixing
screw prismatic head 27 insertable into theprismatic housing seat 39, is associable with the bearing structure. - In particular, by tightening the fixing
screw support body 2 is fixed together with the bearing structure. - The operation of the present invention is as follows.
- The apparatus 1, fixed to a bearing structure by means of the
attachment device 18, is directed towards the area or the point to be illuminated by adjusting the articulation means 23, 24, 25 and is connected to the electrical mains. - With the emitting
elements - In a first lighting mode the
first lighting devices 3a are switched on, so the light radiation is amplified and diffused in such a way that the apparatus 1 illuminates an extended area. - In a second lighting mode the
second lighting devices 3b are switched on, so the light radiation is concentrated in a well-defined beam in such a way that the apparatus 1 illuminates a precise point. - One or more mixed lighting modes cannot be ruled out wherein some or all first and
second lighting devices - In any lighting mode there is an increase in the temperature of the apparatus 1 which is proportional to the illuminance exploited.
- This increase in temperature is limited by the particular shape of the
outer surface 9a wherein theribs - It has in practice been found how the described invention achieves the intended objects and in particular the fact is underlined that the apparatus allows to obtain several lighting modes and to switch from one mode to another in a simple and fast manner thanks to the arrangement and conformation of the lighting devices.
- The apparatus also ensures an effective heat dissipation due to the particular arrangement of the ribs.
- Finally, the present invention allows to have an apparatus easy to position and adjustable in a practical and simple manner thanks to the special attachment device.
Claims (10)
- Lighting apparatus (1) comprising at least a support body (2) and at least a lighting device (3a, 3b) associated with said support body (2), comprising a plurality of said lighting devices (3a, 3b) of which:- at least a first lighting device (3a) comprising at least a first emitting element (4a) able to emit light radiation and at least a first lighting appliance (5a) associated with said first emitting element (4a) and having a first inner surface (6a) substantially polygonal able to diffuse said light radiation; and- at least a second lighting device (3b) comprising at least a second emitting element (4b) able to emit light radiation and at least a second lighting appliance (5b) associated with said second emitting element (4b) and having a second inner surface (6b) substantially smooth able to direct said light radiation, and comprising:characterized by the fact that said articulation means (23, 24, 25) comprise:- an attachment device (18) of said support body (2) to a bearing structure and comprising a base (19) stably associable with said bearing structure; and articulation means (23, 24, 25) interposed between said base (19) and said support body (2) and able to rotate said support body (2) with respect to said bearing structure;- a first cylindrical surface (23) formed on said base;- an intermediate element (24) having a second cylindrical surface (33) substantially complementary to said first cylindrical surface (23) and sliding at least in part on it; and- a hinging assembly (25) interposed between said support body (2) and said intermediate element (24);and by the fact that said attachment device (18) comprises:- a "C"-shaped fixing element (38) having a prismatic housing seat (39) and able to embrace at least in part said intermediate element (24) and said base (19); and- a fixing screw (27, 28, 29, 30) having a prismatic head (27) insertable into said prismatic housing seat (39) and associable with said bearing structure.
- Lighting apparatus (1) according to claim 1,characterized by the fact that it comprises a plurality of said first lighting devices (3a) arranged in a substantially peripheral position.
- Lighting apparatus (1) according to one or more of the preceding claims, characterized by the fact that it comprises a plurality of said second lighting devices (3b) arranged in a substantially central position.
- Lighting apparatus (1) according to one or more of the preceding claims, characterized by the fact that said first and second lighting appliances (5a, 5b) are made in a single body piece comprising a substantially plate-shaped element comprising convexities defining said lighting appliances (5a, 5b).
- Lighting apparatus (1) according to one or more of the preceding claims, characterized by the fact that said support body (2) comprises at least a cap element (8) able to house said first and second lighting devices (3a, 3b).
- Lighting apparatus (1) according to one or more of the preceding claims, characterized by the fact that said cap element (8) has a bottom wall (9) and a plurality of side walls (10).
- Lighting apparatus (1) according to one or more of the preceding claims, characterized by the fact that said cap element (8) comprises an outer surface (9a) having ribs (15, 16) able to reinforce said support body (2) and facilitate the dissipation of heat.
- Lighting apparatus (1) according to one or more of the preceding claims, characterized by the fact that said ribs (15, 16) comprise first ribs (15) having a first stretch (15a) substantially straight which extends on one of said side walls (10), a second stretch (15b) substantially curved which extends on said bottom wall (9) and connected to said first stretch (15a), and a third stretch (15c) substantially straight which extends on an adjacent side wall (10) and connected to said second stretch (15b).
- Lighting apparatus (1) according to one or more of the preceding claims, characterized by the fact that said ribs (15,16) comprise second ribs (16) having a first stretch (16a) substantially straight which extends on one of said side walls (10) and a second stretch (16b) which extends on said bottom wall (9) and connected to said first stretch (16a).
- Lighting apparatus (1) according to one or more of the preceding claims, characterized by the fact that said cap element (8) is made of plastic material able to disperse heat.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMO20140249 | 2014-09-03 |
Publications (2)
Publication Number | Publication Date |
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EP2993393A1 EP2993393A1 (en) | 2016-03-09 |
EP2993393B1 true EP2993393B1 (en) | 2018-08-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15183240.9A Active EP2993393B1 (en) | 2014-09-03 | 2015-09-01 | Lighting apparatus |
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EP (1) | EP2993393B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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IT201900012570A1 (en) * | 2019-07-22 | 2021-01-22 | Aec Illuminazione S R L | LED LIGHTING MODULE AND INSTALLATION SYSTEM OF THE LED BOARD OF SAID MODULE |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4799393B2 (en) * | 2006-12-20 | 2011-10-26 | 京セラ株式会社 | Lighting device |
US7888883B2 (en) * | 2008-01-25 | 2011-02-15 | Eveready Battery Company, Inc. | Lighting device having cross-fade and method thereof |
DE102009047971B4 (en) * | 2009-10-01 | 2011-12-01 | Dräger Medical GmbH | Suspension device and method for its assembly |
DE102009053957A1 (en) * | 2009-11-19 | 2011-06-01 | Osram Gesellschaft mit beschränkter Haftung | Reflector for a lighting device and lighting device |
WO2011125010A1 (en) * | 2010-04-09 | 2011-10-13 | Koninklijke Philips Electronics N.V. | Illumination system and luminaire |
DK177579B1 (en) * | 2010-04-23 | 2013-10-28 | Martin Professional As | Led light fixture with background lighting |
US9228715B2 (en) * | 2012-02-22 | 2016-01-05 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Hybrid canopy lighting for optimum light beam shaping |
-
2015
- 2015-09-01 EP EP15183240.9A patent/EP2993393B1/en active Active
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