EP4296564A1 - Feu automobile - Google Patents

Feu automobile Download PDF

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Publication number
EP4296564A1
EP4296564A1 EP22180758.9A EP22180758A EP4296564A1 EP 4296564 A1 EP4296564 A1 EP 4296564A1 EP 22180758 A EP22180758 A EP 22180758A EP 4296564 A1 EP4296564 A1 EP 4296564A1
Authority
EP
European Patent Office
Prior art keywords
light
transparent
shell
front half
concave
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.)
Pending
Application number
EP22180758.9A
Other languages
German (de)
English (en)
Inventor
Adam OSADNIK
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.)
Marelli Automotive Lighting Italy SpA
Original Assignee
Marelli Automotive Lighting Italy SpA
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 Marelli Automotive Lighting Italy SpA filed Critical Marelli Automotive Lighting Italy SpA
Priority to EP22180758.9A priority Critical patent/EP4296564A1/fr
Priority to CN202310742899.3A priority patent/CN117287660A/zh
Publication of EP4296564A1 publication Critical patent/EP4296564A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/255—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • 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
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • 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 an automotive light.
  • the present invention relates to a headlight or taillight for cars and similar vehicles, i.e. a lighting apparatus adapted to be incorporated into a motor vehicle with the function of signalling the position, the sudden deceleration and/or the turning direction of the vehicle, and/or with the function of lighting the area surrounding the vehicle.
  • a lighting apparatus adapted to be incorporated into a motor vehicle with the function of signalling the position, the sudden deceleration and/or the turning direction of the vehicle, and/or with the function of lighting the area surrounding the vehicle.
  • a headlight or taillight for cars and similar motor vehicles is, conventionally, a lighting device which is to be placed in the front, rear or side part of the vehicle, and which has the function of illuminating the area surrounding the vehicle and/or the function of signalling the position of the vehicle, the sudden deceleration of the vehicle and/or the turning direction of the vehicle, in accordance with certain photometric type-approval standards.
  • taillights for cars and similar motor vehicle usually comprise: a rigid and substantially basin-shaped rear body, which is structured so as to be stably recessed into a compartment specially realized in the rear part of the bodywork of the vehicle; a front half-shell which is arranged to close the mouth of the rear body so as to surface outside of the vehicle bodywork, and is generally provided with a plurality of transparent or semi-transparent sectors, optionally coloured differently from one another; and a series of lighting assemblies that are located inside the body, each immediately beneath a respective transparent or semi-transparent sector of the front half-shell, so as to be able to selectively back light the overlying transparent or semi-transparent sector of the front half-shell.
  • each transparent or semi-transparent sector of the front half-shell is also uniquely associated with a specific light signal, thus each lighting assembly is specifically structured so as to be able to emit, on command, a light beam that, once exiting the taillight through the corresponding transparent or semi-transparent sector of the half-shell, meets the photometric type-approval specifications (colour and light distribution) provided for the corresponding light signal.
  • LEDs are point-type light sources that emit a light beam with a rather narrow opening angle.
  • the lighting assemblies usually use corrective optics and shielding masks to adapt the light beam emitted by the various LEDs to the photometric and aesthetic needs associated with automotive use.
  • the corrective optics and the shielding masks are interposed between the LEDs and the front half-shell, and are overall structured so that the light reaching the inner face of the front half-shell, is able to back light the corresponding sectors of the front half-shell in a substantially uniform manner, and at the same time have a predominant component of the light beam substantially parallel to a predetermined optical axis, so as to meet the photometric type-approval specifications.
  • some models of taillights for cars are provided with lighting assemblies comprising: a reflector body, which is made of opaque plastic material via injection moulding, is located close to the bottom of the rear body and is provided with a concave reflective surface with a roughly semi-parabolic profile, which is oriented so as to reflect the incident light towards the facing transparent or semi-transparent sector of the front half-shell; and a series of high-powered LEDs that are placed close to the bottom of the rear body, at the side of the reflector body, and are oriented so as to direct the light produced towards the reflective surface of the reflector body.
  • these lighting assemblies moreover comprise a plate-like corrective optics and an opaque shielding mask, both separated and distinct from the reflector body.
  • the corrective optics usually consists of a plate-like element made of transparent plastic material via injection moulding, which is provided with a lens system and is placed between the reflector body and the front half-shell so as to be crossed by the light reflected by the reflector body towards the front half-shell.
  • the lenses of the plate-like element are shaped so as to direct/forward and/or appropriately distribute the light directed towards the front half-shell.
  • the opaque shielding mask is placed immediately beneath the front half-shell, i.e. between the corrective optics and the front half-shell, so as to hide the rest of the lighting assembly from view, and is provided with one or more through openings or transparent sectors of predetermined shape, which allow the light to reach the front half-shell.
  • each lighting assembly is subject to the perfect arrangement and alignment between the reflector body, the corrective optics, the LEDs and the shielding mask, so these components have to be placed inside the rear body at later times, with a relatively high precision.
  • the inner surface of the rear body is currently provided with a series of stops and/or centring pins that allow the reflector body, the LEDs, the corrective optics and the shielding mask to be placed precisely inside the rear body in succession.
  • Aim of the present invention is to simplify the assembly of the lighting assemblies inside the rear body, so as to reduce the overall production costs of the taillight.
  • an automotive light as defined in Claim 1 and preferably, though not necessarily, in any one of the claims depending on it.
  • number 1 denotes as a whole an automotive light, i.e. a lighting apparatus particularly adapted to be firmly fixed on the front or rear part of the bodywork of a motor vehicle, with the function of emitting light signals adapted to signal/indicate the position of the vehicle and/or the sudden deceleration of the vehicle and/or the turning direction of the vehicle during travel and/or with the function of illuminating the area surrounding the vehicle.
  • a lighting apparatus particularly adapted to be firmly fixed on the front or rear part of the bodywork of a motor vehicle, with the function of emitting light signals adapted to signal/indicate the position of the vehicle and/or the sudden deceleration of the vehicle and/or the turning direction of the vehicle during travel and/or with the function of illuminating the area surrounding the vehicle.
  • the automotive light 1 is adapted to be fixed to the front or rear part of the bodywork of a car, van, truck, motorcycle or other similar motor vehicle, to perform the function of a headlight or taillight.
  • the automotive light 1 could also be placed on a lateral side of the car or other similar motor vehicle.
  • the automotive light 1 is furthermore structured so as to be stably recessed into the vehicle bodywork (not shown) and so as to surface outside the latter.
  • the automotive light 1 is preferably structured to be stably recessed into the rear part of the bodywork of a car or other similar motor vehicle.
  • the automotive light 1 is preferably a taillight for cars and the like.
  • the automotive light 1 may also be structured so as to be simply fixed cantilevered on the front, side or rear part of the vehicle bodywork (not shown).
  • the automotive light 1 in particular comprises: a substantially rigid and preferably made of plastic material, concave rear body 2 which is substantially basin-shaped and is preferably structured so as to be firmly fixed to the vehicle bodywork (not shown); and a substantially rigid and preferably made of plastic material, front half-shell 3, traditionally called lens, which is arranged to close the mouth of the rear body 2, preferably so as to be able to surface outside of the vehicle bodywork.
  • the automotive light 1 also comprises one or more electrically-powered lighting assemblies 4, each of which emits light on command and is placed inside the rear body 2, beneath a corresponding transparent or semi-transparent sector of front half-shell 3, so as to be able to selectively back light the same transparent or semi-transparent sector of the front half-shell, preferably separately and independently from the other lighting assemblies.
  • one or more transparent or semi-transparent sectors of the front half-shell 3 may also be coloured.
  • the front half-shell 3 may also include opaque sectors.
  • the lighting assembly 4 or at least one of the lighting assemblies 4 of automotive light 1 is moreover structured so as direct the light towards the corresponding and facing transparent or semi-transparent sector of front half-shell 3, preferably with a predominant component of the light beam substantially parallel to a predetermined reference optical axis A.
  • the optical axis A is moreover substantially parallel to the vehicle longitudinal axis when the automotive light 1 is mounted/placed on the vehicle bodywork.
  • the rear body 2 is preferably made of an opaque plastic material advantageously via injection moulding, and is preferably structured so as be at least partially recessed into a seat specially made in the rear part of the vehicle bodywork.
  • the rear body 2 may also be structured so as to be at least partially recessed into a seat specially made in the front or side part of the vehicle bodywork (not shown), or so as to be simply fixed cantilevered on the front, side or rear part of the vehicle bodyworK.
  • the front half-shell 3 is preferably made of a transparent plastic material, such as polymethylmethacrylate (PMMA) or polycarbonate (PC), advantageously via injection moulding, and is preferably provided with a number of adjacent transparent or semi-transparent sectors, each of which is separately backlighted by a corresponding lighting assembly 4.
  • PMMA polymethylmethacrylate
  • PC polycarbonate
  • the lighting assembly 4, or at least one of the lighting assemblies 4 of automotive light comprises: a concave moulded piece 5 with monolithic structure, which is made of transparent plastic material preferably via injection moulding, is placed inside the rear body 2 advantageously near the bottom of the latter, and is provided with a concave reflecting portion 5a advantageously with a roughly semi-parabolic profile, which is oriented so as reflect the incident light towards the facing transparent or semi-transparent sector of the front half-shell 3; and an electrically-powered light source, which emits light on command and is arranged inside the rear body 2, at the side of the concave moulded piece 5 and preferably also close to the bottom of rear body 2, so as to direct the light produced towards the concave reflecting portion 5a of the concave moulded piece 5.
  • a concave moulded piece 5 with monolithic structure which is made of transparent plastic material preferably via injection moulding, is placed inside the rear body 2 advantageously near the bottom of the latter, and is provided with a concave reflecting portion 5a advantageous
  • said light source furthermore includes one or more LEDs 6 (acronym for Light Emitting Diode), which are placed at the side of the concave moulded piece 5, preferably near the bottom of the rear body 2, and are oriented so as to direct the produced light towards the concave reflecting portion 5a.
  • LEDs 6 ascronym for Light Emitting Diode
  • the one or more LEDs 6 emit a light beam having at least 50% of the light energy concentrated in an emission cone having an angle preferably less than or equal to 60°, and are preferably oriented so as to direct said light beam substantially only towards the concave reflecting portion 5a of the concave moulded piece 5 with monolithic structure.
  • the concave moulded piece 5 with monolithic structure is moreover provided with a transparent portion 5b preferably with substantially plate-like structure, which is placed spaced in front of the concave reflecting portion 5a, so as to be interposed between the concave reflecting portion 5a and the front half-shell 3 and thus be crossed by the light reflected by the reflecting portion 5a.
  • the transparent portion 5b is furthermore provided with a corrective optical structure adapted to direct/address and/or distribute and/or diffuse and/or filter the light that comes from the concave reflecting portion 5a of concave moulded piece 5 and is directed towards the front half-shell 3.
  • the reflector body and the corrective optics of lighting assembly 4 are therefore made in a single piece and of transparent plastic material, advantageously via injection moulding.
  • the concave moulded piece with monolithic structure 5 is preferably made of transparent polycarbonate, advantageously via injection moulding.
  • the inner and/or outer surface of the concave moulded piece 5 is preferably coated with a thin film 7 of opaque, reflective material, advantageously of a metallic type, so as to reflect the incident light.
  • the film 7 of opaque, reflective material is preferably realized on the inner surface of the concave moulded piece 5 advantageously via a metallization process of known type.
  • the corrective optical structure of transparent portion 5b is preferably structured to direct/ address, in a predetermined manner, the light rays r that come from the concave reflecting portion 5a and are directed towards the front half-shell 3.
  • the outer and/or inner surface of concave moulded piece 5 is preferably provided with a multitude of small-sized lenses 8, advantageously with cylindrical and/or barrel and/or cushion profile, which are arranged side by side and are preferably overall shaped so as to distribute, in a predetermined manner, the light rays r that come from the concave reflecting portion 5a and are directed towards the front half-shell 3.
  • the outer and/or inner surface of concave moulded piece 5 preferably has a bossaged profile with substantially lenticular bosses.
  • the lenses 8 are preferably overall shaped so as to substantially uniformly distribute the light rays r that come from the concave reflecting portion 5a and are directed towards the front half-shell 3.
  • the lenses 8 are preferably also locally shaped and/or oriented so as to orient more or less parallel to the optical axis A, the light rays r that come from the concave reflecting portion 5a and are directed towards the front half-shell 3.
  • the concave moulded piece 5 is preferably shaped so as to form at least one cup-shaped body 9 with monolithic structure, which is advantageously placed inside the rear body 2 with its mouth at least partially facing and/or adjacent to the inner surface 2i of the rear body 2.
  • the concave reflecting portion 5a and the transparent portion 5b of the concave moulded piece 5 are two distinct and opposite sectors of said cup-shaped body 9 with monolithic structure.
  • the light source of the lighting assembly 4, or rather the LED(s) 6, is preferably placed substantially at the mouth of said cup-shaped body 9.
  • the LED(s) 6 are advantageously fixed on a printed circuit board 10 with plate-like structure, which is adapted to power and/or drive the LED(s) 6.
  • the printed circuit board 10 moreover extends substantially flush with the mouth of cup-shaped body 9, partially or totally covering the same mouth.
  • the concave moulded piece 5 with monolithic structure is preferably shaped so as to form a plurality of adjacent cup-shaped bodies 9, which are advantageously arranged one beside the other so as to form a row, and each cup-shaped body 9 is preferably provided with its own concave reflecting portion 5a and its own transparent portion 5b, arranged facing each other.
  • the lighting assembly 4 is moreover provided with a plurality of LEDs 6 (acronym for Light Emitting Diode), which are advantageously placed at the mouths of the various cup-shaped bodies 9, and are oriented so as to direct the light produced towards the concave reflecting portion 5a of the corresponding cup-shaped bodies 9.
  • LEDs 6 ascronym for Light Emitting Diode
  • the lighting assembly 4 comprises two or more LEDs 6 per each cup-shaped body 9.
  • the LEDs 6 are additionally fixed, one beside the other, on a single, oblong-shaped, printed circuit board 10 that extends flush with the mouths of all the cup-shaped bodies 9.
  • the LEDs 6, in addition, are preferably divided into small groups, each of which is aligned with a respective cup-shaped body 9, and the printed circuit board 10 is preferably structured so as to be able to switch on and off each group of LEDs 6 independently of the other groups of LEDs 6.
  • the or each lighting assembly 4 also comprises an opaque shielding mask 11, which is arranged immediately beneath the front half-shell 3, i.e. between the transparent portion(s) 5b of the concave moulded piece 5 and the front half-shell 3, so as to conceal the rest of the components of the lighting assembly 4 from view, and is provided with one or more limited light-passage areas 11a of predetermined shape, each of which allows the light coming from the transparent portion(s) 5b of the concave moulded piece 5, to freely reach the front half-shell 3.
  • an opaque shielding mask 11 which is arranged immediately beneath the front half-shell 3, i.e. between the transparent portion(s) 5b of the concave moulded piece 5 and the front half-shell 3, so as to conceal the rest of the components of the lighting assembly 4 from view, and is provided with one or more limited light-passage areas 11a of predetermined shape, each of which allows the light coming from the transparent portion(s) 5b of the concave moulded piece 5, to freely reach the front half-shell 3.
  • the shielding mask 11 preferably has a monolithic structure, and is preferably made of opaque plastic material advantageously via injection moulding.
  • the limited light-passage area(s) 11a preferably consist of sectors of the mask made of transparent or semi-transparent plastic material, optionally also coloured.
  • the light passage area(s) 11a of the opaque shielding mask 11 may also be pass-through openings of given shape.
  • the assembly of automotive light 1 is simpler and faster than the current ones, because the reflector body and the corrective optics of the or of each lighting assembly 4 do not require any mutual alignment.
  • the reflector body and the corrective optics of the or of each lighting assembly 4 in fact, are incorporated into the concave moulded piece 5 with monolithic structure.
  • the concave moulded piece 5 has larger dimensions, so it can be handled more easily, and requires fewer stops and/or centring pins within the rear body 2, with the resulting reduction in plastic material.
  • the transparent plastic material forming the concave moulded piece 5 may also be coloured.
  • the outer and/or inner surface of the concave moulded piece 5 may optionally also be substantially smooth.
  • the corrective optical structure of the or of each transparent portion 5b of the concave moulded piece 5 may comprise, in addition to or as an alternative to the lenses 8, one or more deflector prisms of given shape.
  • the corrective optical structure present on the or on each transparent portion 5b may be structured so as to diffuse the light coming from the concave reflecting portion 5a.
  • the outer and/or inner surface of the concave moulded piece 5 may be provided with an embossing, satin-finishing or the like, which is capable of diffusing the light rays r that come from the concave reflecting portion 5a and are directed towards the front half-shell 3.
  • embossing, satin-finishing or similar can be made in addition to or instead of the lenses 8.
  • the concave moulded piece 5 may be made of an opalescent plastic material.
  • the light rays r that come from the concave reflecting portion 5a and are directed towards the front half-shell 3 are diffused directly by the opalescent plastic material.
  • the corrective optical structure is therefore incorporated within the transparent portion 5b of the concave moulded piece 5.
  • the inner and/or outer surface of the concave moulded piece 5 is preferably coated with a thin film 7 of opaque, reflective material, advantageously of a metallic type, so as to reflect the incident light.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP22180758.9A 2022-06-23 2022-06-23 Feu automobile Pending EP4296564A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22180758.9A EP4296564A1 (fr) 2022-06-23 2022-06-23 Feu automobile
CN202310742899.3A CN117287660A (zh) 2022-06-23 2023-06-21 汽车灯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22180758.9A EP4296564A1 (fr) 2022-06-23 2022-06-23 Feu automobile

Publications (1)

Publication Number Publication Date
EP4296564A1 true EP4296564A1 (fr) 2023-12-27

Family

ID=82656480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22180758.9A Pending EP4296564A1 (fr) 2022-06-23 2022-06-23 Feu automobile

Country Status (2)

Country Link
EP (1) EP4296564A1 (fr)
CN (1) CN117287660A (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100259153A1 (en) * 2009-04-13 2010-10-14 Takashi Futami Lamp using led light source
ITTV20120175A1 (it) * 2012-09-12 2014-03-13 Automotive Lighting Italia Spa Fanale automobilistico
EP3096072A1 (fr) * 2015-04-23 2016-11-23 Automotive Lighting Italia S.p.A. Phare automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100259153A1 (en) * 2009-04-13 2010-10-14 Takashi Futami Lamp using led light source
ITTV20120175A1 (it) * 2012-09-12 2014-03-13 Automotive Lighting Italia Spa Fanale automobilistico
EP3096072A1 (fr) * 2015-04-23 2016-11-23 Automotive Lighting Italia S.p.A. Phare automobile

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