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
  • F21S41/10—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]
  • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel 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
  • F21S41/10—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]
  • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
• • 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
  • F21S41/25—Projection lenses
  • F21S41/26—Elongated lenses
• • 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
  • F21S41/25—Projection lenses
  • F21S41/265—Composite lenses; Lenses with a patch-like shape
• • 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
  • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
  • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
  • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V5/00—Refractors for light sources
  • F21V5/008—Combination of two or more successive refractors along an optical axis
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V5/00—Refractors for light sources
  • F21V5/04—Refractors for light sources of lens shape
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
  • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
  • G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
  • G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
  • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
  • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
  • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
  • G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
• • 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 projection lens 3 is made of polymethylmethacrylate.
• the projection entrance diopter 3a is convex.
• the primary lens 1 is made of a material transparent to the visible spectrum having an optical index less than 1.5, preferably the primary lens 1 is made of silicone.
• Silicone is selected because it is a soft material. In the primary lens 1 configuration, the silicone portion is held by a more rigid polycarbonate surround (overmolded onto the silicone portion).
• the optical axis 5 is angularly offset relative to a secondary optical axis 6, the secondary optical axis 6 being the optical axis of the projection lens 3.
• the angular offset between the optical axis 5 and the secondary optical axis 6 makes it possible to adapt to the curvature of the output diopter of the projection lens which can be asymmetrical while limiting the space occupied by the entire optical system. Indeed, in order for the output diopter of the projection lens to be correctly aligned with respect to the other lenses and with respect to the light sources, it is desirable for the optical axis 5 and the secondary optical axis 6 to be offset. Also, the shape of the intermediate lens and that of the input diopter of the projection lens can adapt accordingly to the angular offset between the optical axis 5 and the secondary optical axis 6 and the shape of the output diopter of the projection lens.
• the primary output diopter 1b and the projection input diopter 3a at the optical axis 5 are spaced apart by a distance dist, the intermediate output diopter 2b being located closer to the projection input diopter 3a than to the primary output diopter 1b, preferably the intermediate output diopter 2b being located at most one third of the distance dist from the projection input diopter 3a.
• the intermediate lens 2 is made of a material transparent to the visible spectrum having an Abbe number less than 50, preferably the intermediate lens 2 is made of polycarbonate.
• the intermediate lens 2 is made of polycarbonate because its properties are equivalent to those of “Flint” type glass (which has an Abbe number less than 50).
• the polycarbonate material of the intermediate lens compensates for the effects due to the polymethylmethacrylate material (which has an Abbe number greater than 50 like “Crown” type glass) of the projection lens 3.
• the combination of a material that has an Abbe number less than 50 with a material that has an Abbe number greater than 50 makes it possible to reduce chromatic aberrations.
• the intermediate entrance diopter 2a is concave and has in the plane p a curvature defined by a polynomial function.
• This configuration allows for better compactness of the optical system and also allows for correction of field aberrations.
• the curvature of the intermediate entrance diopter 2a is defined by a polynomial function makes it possible to obtain a greater compactness (in width and depth) of the lighting module. Furthermore, the selection of a polynomial function for the intermediate entrance diopter 2a makes it possible to set a large field for this diopter (thus making it possible to obtain a significant concentration of light towards the front of the lighting module and therefore to obtain good imaging quality) which is linked to obtaining a small focal length. Indeed, the selection of a polynomial function for the intermediate entrance diopter 2a makes it possible to produce an aspherical diopter, in order to reduce optical aberrations while having a large field and good optical performance.
• the light assembly includes a lighting module configured to form a first near-field beam.
• the fact that the first near-field beam is obtained with a lighting module comprising a primary lens and a projection lens (and not comprising an intermediate lens) is linked to the fact that a significant luminous flux and a significant beam width (which can be six times greater than that of the other beams of the lighting module) are sought for this beam and that pixelation is not sought for this beam at the level of the lighting resulting from this beam.
• the light assembly includes a first lighting module, a second lighting module, and a third lighting module configured to form at least four light beams, the four light beams being a low beam cutoff beam, a first high beam supplement, a second near-field beam, and a second high beam supplement, in the p-plane, the first near-field beam being wider than the second near-field beam, the second high beam supplement having a complementary function to the first high beam supplement.
• the second near-field beam (in comparison with the first near-field beam) is obtained by an illumination module comprising a primary lens, an intermediate lens and a projection lens.
• an illumination module comprising a primary lens, an intermediate lens and a projection lens.
• the light assembly thus provides a complete lighting function so as to illuminate the front of the road optimally.
• the second additional high beam makes it possible to accentuate the lighting in certain areas that were not sufficiently illuminated by the first additional high beam.
• the first lighting module and the second lighting module are configured to form the low beam cutoff beam and the first high beam supplement and the third lighting module is configured to form the second near beam and the second high beam supplement.
• This configuration allows for the most complete lighting possible. In fact, it is possible to obtain lighting from separate modules, the location of the resulting lighting of which can be controlled individually.
• the terms relating to verticality, horizontality or transversality (or lateral direction or position), or their equivalents, are understood in relation to the position in which the lighting system is intended to be mounted in a vehicle.
• the terms “vertical” and “horizontal” are used in this description to designate directions, following an orientation perpendicular to the plane of the horizon for the term “vertical” (which corresponds to the height of the systems), and following an orientation parallel to the plane of the horizon for the term “horizontal”. They are to be considered in the operating conditions of the module in a vehicle. The use of these words does not mean that slight variations around the vertical and horizontal directions are excluded from the invention.
• an inclination relative to these directions of the order of + or – 10° is here considered as a minor variation around the two preferred directions.
• the inclination is in principle between -5° and +4° and it is between -6° and +7.5° laterally.
• visible spectrum means that part of the electromagnetic spectrum that is perceptible to humans is considered.
• the lighting module comprises a primary lens 1, a projection lens 3 and at least one row 4 of light sources.
• the primary lens 1 has an optical axis 5.
• the primary lens 1 comprises a primary input diopter 1a and a primary output diopter 1b.
• the projection lens 3 comprises a projection input diopter 3a and a projection output diopter 3b.
• the projection output diopter 3b has a surface rounded towards the outside.
• the at least one row 4 comprises light sources arranged in a straight line in a direction d. Light rays from the at least one row 4 of light sources are configured to form a beam refracting first on the primary lens 1 and second on the projection lens 3.
• a plane p comprises the optical axis 5 and the direction d.
• the plane p is horizontal.
• the projection exit diopter 3b has, in the plane p (or in horizontal section), a radius of curvature greater than or equal to 100 mm.
• the projection lens 3 is made of a material transparent to the visible spectrum having an Abbe number greater than 50.
• the projection lens 3 may be made of polymethylmethacrylate.
• the exit diopter of the projection lens 3 may have a curvature along a vertical plane having a radius of a value between 25 mm and 60 mm, preferably of a value of 35 mm.
• the exit diopter of the projection lens 3 may have a curvature along a horizontal plane having a radius of a value greater than or equal to 100 mm and/or less than or equal to 300 mm, preferably of a value of 120 mm to plus or minus 10%.
• the optical module comprises a plurality of light guides.
• each light source is associated with a separate light guide.
• the output faces of the light guides may be in contact with the primary input diopter 1a.
• the light guides may have a length (taken in the direction of the optical axis) of between 4.5 mm and 12 mm (their length varying according to their transverse position relative to the optical axis). Indeed, given that the input diopter of the primary lens is curved, the light guides furthest from the optical axis will be the longest in comparison with the light guide (or two guides) located in contact with the optical axis.
• the projection input diopter 3a forms in the plane p a curved line defined by a polynomial function.
• the projection lens 3 can be toroidal or cylindrical.
• the projection entrance diopter 3a has a surface rounded towards the outside.
• the primary output diopter 1b has a surface rounded towards the outside.
• the primary entrance diopter 1a has a surface rounded towards the outside.
• the primary entrance diopter 1a has a central zone 8 and two lateral zones 7 positioned on either side of the central zone 8.
• the central zone 8 forms, in the plane p, a curved line less re-entrant than that formed by the two lateral zones 7 in the same plane.
• the entrance diopter and the exit diopter of the primary lens 1 can be defined in the plane p by a polynomial function.
• the central zone 8 of the entrance diopter of the primary lens 1 can have a radius of curvature having a value between 20 mm and 60 mm.
• the exit diopter of the primary lens 1 can have a radius of curvature having a value between 20 mm and 40 mm.
• the primary lens 1 is made of a material transparent to the visible spectrum, this material transparent to the visible spectrum having an optical index of less than 1.5.
• the primary lens 1 is made of silicone.
• the primary lens 1 may also be made of PMMA (whose optical index is 1.49) or of another plastic whose optical index is less than 1.5. According to an advantageous embodiment, the optical axis 5 and the direction d are orthogonal.
• the optical axis 5 and the secondary optical axis 6 which is the optical axis of the projection lens 3 are directed in a different direction relative to each other.
• the secondary optical axis 6 may be inclined relative to the optical axis 5 by a value between 0° and 5°, preferably this value may be 3.5°.
• the primary lens 1 (and thus the optical axis 5) can be translated horizontally or vertically, so as to move the light sources in the field as desired.
• the lighting module comprises an intermediate lens 2.
• the intermediate lens 2 has an intermediate input diopter 2a and an intermediate output diopter 2b.
• the light rays from the at least one row 4 of light sources are configured to form a beam refracting on the intermediate lens 2 after being refracted on the primary lens 1 and before being refracted on the projection lens 3.
• the primary output diopter 1b and the projection input diopter 3a at the optical axis 5 are separated by a distance dist.
• the intermediate output diopter 2b is closer to the projection input diopter 3a than to the primary output diopter 1b.
• the intermediate output diopter 2b is located at most one third of the distance dist from the projection input diopter 3a.
• the intermediate lens 2 is made of a material transparent to the visible spectrum, this material transparent to the visible spectrum having an Abbe number of less than 50.
• the intermediate lens 2 is made of polycarbonate.
• the intermediate lens 2 can also be made of “Flint” type glass or plastic.
• the intermediate entrance diopter 2a has a curved hollow surface.
• the intermediate entrance diopter 2a has in the plane p a curved line defined by a polynomial function.
• the intermediate exit diopter 2b may be convex and have, in the plane p, a curvature defined by a polynomial function.
• the intermediate lens may be asymmetric.
• the input diopter of the primary lens 1 is distant from the output diopter of the projection lens 3 by a distance of between 70 mm and 90 mm.
• the output diopter of the primary lens 1 is distant from the input diopter of the projection lens 3 by a distance of between 50 mm and 60 mm. These distances are taken into account at the level of the optical axis 5.
• the intermediate lens and the projection lens may have a focal length of 58 mm (this distance being a fictitious distance calculated from the overall image/object magnification of the system composed of the intermediate lens and the projection lens).
• the field of view of the beam from rows 4 of the projection lens may be 35°.
• the primary lens and the intermediate lens have a size of 30 by 60 mm (taking into account the fixing areas).
• the projection lens may have a width of 45 mm and a height of between 30 mm and 40 mm (i.e. in the vertical direction).
• the overall projection lens of the system i.e. the overall projection lens consists of the joining of several individual projection lenses
• the light sources of the at least one row 4 of light sources can be selectively switched on individually.
• the LEDs of the lighting module can be selectively switched on or off so as to form the resulting lighting having the desired configuration.
• This configuration therefore makes it possible to control the brightness value according to the area considered.
• ADB for Adaptive Driving Beam
• a segmented beam is a beam whose projection forms an image composed of beam segments, each segment being able to be illuminated independently.
• emissive elements are necessarily simultaneously active, i.e. emissive of light.
• This function allows the shape of the beam to be modulated.
• a light source is not activated, its image, as projected by the optical module, will be zero. It then forms a lighting void in the resulting overall beam.
• This void is understood to include coupling phenomena at the source and the effects of stray light from the optics.
• the system according to the invention may comprise a unit for controlling the activation of each of the sources, configured to produce at least one dark zone forming a tunnel in a projected beam by deactivating a group of adjacent sources, the control unit being configured to determine the number of sources in the group corresponding to the dark zone as a function of the width dimension of the sources.
• the control unit may comprise a computer program product, preferably stored in a non-transitory memory, in which the computer program product comprises instructions which, when executed by a processor, make it possible to determine the sources to be activated, in particular to obtain at least one dark zone (in which the sources are not activated) of a determined surface taking into account the variable surface of the images of the elements.
• the lighting module may also include the DBL function (for Dynamic Bending Light) which allows for a cut-off beam for dipped beam whose bent portion follows the curvature of the road.
• DBL function for Dynamic Bending Light
• the lighting assembly comprises at least one lighting module.
• the lighting assembly comprises a lighting module configured to produce a first near-field beam.
• a row 4 of light sources is at the origin of this beam.
• the lighting assembly comprises at least two lighting modules.
• the at least two lighting modules are positioned so that the directions d of the at least two lighting modules are parallel, so that the projection output diopters 3b of the at least two lighting modules are placed side by side one after the other and so that, at the contact between two adjacent lighting modules, the tangents of the two projection output diopters 3b are superimposed (this is so that at the junction between two adjacent projection output diopters 3b, the resulting curvature has a smooth zone and therefore does not have a projecting angular part).
• the optical axes 5 of the at least two lighting modules are directed towards the same flat surface.
• the projection output diopters 3b have a radius of curvature having the same value.
• Two adjacent 3b projection exit diopters may or may not be symmetrical with respect to a vertical plane, this vertical plane being parallel to the optical axis 5.
• the lighting assembly comprises a first lighting module, a second lighting module and a third lighting module configured to produce at least four light beams.
• the four light beams are a cut-off beam for dipped beam, a first main beam supplement, a second near-field beam and a second main beam supplement.
• the first near-field beam occupies a wider area than that occupied by the second near-field beam.
• the first main beam supplement has a primary function relative to the second main beam supplement which has a secondary function, this so that the second main beam supplement makes it possible to illuminate the areas that were insufficiently illuminated by the first main beam supplement.
• the first lighting module and the second lighting module are configured to produce the low beam cut-off beam and the first high beam supplement.
• the third lighting module is configured to produce the second near-field beam and the second high beam supplement.
• a separate row 4 of light sources may be the origin of each formed light beam.
• Several rows 4 of light sources may participate together in forming the same light beam.
• a row 4 of light sources and in the second lighting module a row 4 of light sources may form the cut-off beam for low beam.
• another row 4 of light sources and in the second lighting module another row 4 of light sources may form the first main supplementary beam.
• a row 4 of light sources may form the second near-field beam and another row 4 of light sources may form the second main supplementary beam.
• the first near-field beam formed by the lighting module not including the intermediate lens may be six times wider than the other beams of the lighting module (i.e. the cut-off beam for low beam, the first main beam, the second near-field beam and the second main beam).
• the low beam cut-off beam and the first high beam can be formed from 12 light sources.
• the second near-field beam can be formed from 8 light sources.
• the second high beam can be formed from 3 light sources.
• the first near-field beam can be formed from 6 to 8 light sources.
• the row 4 of light sources forming the cut-off beam for low beam and that forming the first main beam can be positioned one below the other (being in contact) and can be parallel.
• the row 4 of light sources forming the second near-field beam and that forming the second main beam can also be positioned one below the other (being in contact) and can be parallel.
• the center of a light source of row 4 of light sources forming the second near-field beam and the center of a light source of row 4 of light sources forming the second main beam may be spaced 3 mm apart.
• the centers of two adjacent light sources (in the same row) can be 4 mm apart.
• the centers of two adjacent light sources (in the same row) can be 2 mm apart.
• the spacing between two light sources (in the same row) on the first and second lighting modules is less than the spacing between two adjacent light sources (in the same row) on the third lighting module because on the third lighting module, the light sources are larger (in comparison to those on the first and second lighting modules) and therefore the light guides are larger.
• the first and second near-field beams can also be called "flat" beams for flat or spread beams. They are projected broadly below the cutoff and are used to illuminate the near-field in front of the vehicle.
• the low beam cut-off beam is used to define a cut-off zone.
• the combination of the near-field beams and the low beam cut-off beam makes it possible to at least partially define a low beam beam.
• the low beam cut-off beam is therefore configured to produce, in dipped beam mode, a portion of low beam with cut-off.
• the resulting angled portion is called the "kink" of the "dipped beam”.
• Low beam type beams typically have a first lateral zone (normally on the edge of the roadway) projecting at a height slightly higher than in a second lateral zone (normally on the middle of the roadway), these two zones following each other laterally with the presence of a bend or elbow between them.
• a near-field beam from a dipped beam is typically a relatively spread projection laterally in front of the vehicle, mostly or completely below the horizon line, generally seeking a good distribution of illumination across the entire illuminated area.
• the invention can participate in a high beam function which has the function of illuminating the scene in front of the vehicle over a wide area, but also over a significant distance, typically around two hundred meters.
• This light beam due to its lighting function, is located mainly above the horizon line. It can have a slightly ascending optical axis of illumination for example.
• it can be used to generate a lighting function of the “complementary” type which forms a portion of a high beam complementary to that produced by a near-field beam, the high beam complement seeking entirely or at least mainly to illuminate above the horizon line while the near-field beam (which can have the specificities of a dipped beam) seeks to illuminate entirely or at least mainly below the horizon line.
• the high beam complement can therefore be a main part of the overall “high beam” beam and be associated with another beam participating in the dipped beam.
• the module can also be used to form other lighting functions via or outside those described above, in relation to the adaptive beams. It is thus possible to produce a lighting matrix to selectively illuminate parts of the space in front of the vehicle.
• the light sources of the entire device can be light-emitting diodes, also commonly called LEDs.
• the LEDs have an emissive surface of 0.5 mm 2 (for the first lighting module and for the second lighting module) and 1 mm 2 (for the third lighting module and for the lighting module forming the first near-field beam).
• the size of the LEDs is directly related to the size of the light pixels obtained and also related to the desired beam volume. Furthermore, to have a large beam volume, it is also possible to add rows of LEDs.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Microelectronics & Electronic Packaging (AREA)
• General Physics & Mathematics (AREA)
• Non-Portable Lighting Devices Or Systems Thereof (AREA)
• Lenses (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=86469069

Family Applications (1)

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Family Cites Families (6)

• 2023
  • 2023-03-01 FR FR2301902A patent/FR3146334A1/fr not_active Ceased
• 2024
  • 2024-02-13 WO PCT/EP2024/053558 patent/WO2024179822A2/fr not_active Ceased
  • 2024-02-13 CN CN202480016149.0A patent/CN121039547A/zh active Pending
  • 2024-02-13 EP EP24704023.1A patent/EP4673775A2/de active Pending

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