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
  • F21S41/20—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
  • F21S41/29—Attachment thereof
  • F21S41/295—Attachment thereof specially adapted to projection 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
  • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
  • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
  • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
  • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
  • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
  • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
  • B60Q1/068—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by mechanical means
  • B60Q1/0683—Adjustable by rotation of a screw
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
  • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
  • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
  • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
  • B60Q1/18—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights being additional front lights
  • B60Q1/20—Fog lights
• • 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
  • F21S41/19—Attachment of light sources or lamp holders
  • F21S41/192—Details of lamp holders, terminals or connectors
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
  • F21S45/40—Cooling of lighting devices
  • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
  • F21S45/40—Cooling of lighting devices
  • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
  • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
• • 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
  • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
  • F21W2102/10—Arrangement or contour of the emitted light
  • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
  • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
  • F21W2102/14—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users
• • 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
  • F21W2102/30—Fog lights
• • 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

• Device for emitting a light beam and headlamp, in particular for a motor vehicle comprising said
• the present invention relates to a device for emitting a light beam and a projector, particularly a motor vehicle, comprising said device.
• Projectors are known for making a light beam delimited by a cut line at a certain level above the roadway. Said cutoff line is made using covers and / or reflectors.
• hinged covers or reflectors have certain disadvantages and it is advantageous to provide solutions using other mobile organs.
• the invention consequently proposes a device for emitting a light beam comprising a lens and means forming a beam cut-off line, said device being configured to allow adjustment of a positioning of said cut-off line, according to a given direction, in particular vertical direction, as a function of an angular positioning of said lens about an axis of articulation, said lens comprising a part, said optical part, of transmission of the beam and a part of articulation in rotation about said axis of 'joint.
• a beam-emitting device that does not depend on the articulation of covers or reflectors for the positioning of the beam cut-off line.
• Said optical portion and said hinge portion are advantageously made of the same material.
• said hinge portion and said optical portion are integral in one piece.
• the lens can be molded in one piece. This also improves the mounting accuracy of the transmitting device.
• said device comprises a light source, in particular a light-emitting diode
• said lens and said light source are arranged to form said cut-off line
• said articulation axis passes substantially through said light source
• said lens has a focus at said light source
• said optical portion extends from arms of said hinge portion radially away from said hinge axis
• said arms comprise pivot pins for articulating the lens around said articulation axis
• said articulation portion comprises means for rotating said lens
• said drive means comprise at least one ribbed fork intended to cooperate with a transversely oriented adjustment screw, in particular orthogonally, to said axis of rotation,
• said drive means are positioned on either side of said optical part, along said hinge axis,
• said device comprises a fixed support of said lens
• said fixed support comprises articulating arms in rotation with said lens
• said support comprises an electronic control card beyond which said articulation arms extend radially toward said hinge axis
• the invention also relates to a projector, especially for a motor vehicle, comprising the transmission device mentioned above.
• Said projector comprises, for example, a casing substantially cylindrical envelope.
• Said housing comprises an inner face which may be provided with guide ribs of said support hinge arm.
• Said internal face of the housing advantageously comprises snap-fastening ribs of said articulation portion of the lens.
• said housing is configured to allow mounting from the rear of said support. According to a variant, said housing is configured to allow mounting from the front, in particular according to the orientation of said guide and / or ratchet ribs provided on said housing.
• Said projector can be an anti fog, emitting a beam with a linear cut, intended to be a horizontal upper cut line during operation of the projector, although this application should not be considered as limiting.
• FIG. 1 is a perspective view which shows an exploded first embodiment of the transmitting device and the projector according to the invention
• FIG. 1 is a perspective view of the projector of Figure 1, shown assembled
• FIG. 3 is a view identical to Figure 1 illustrating an alternative embodiment of the invention
• FIG. 4 is a sectional view along a vertical diametrical plane of the projector of FIG. 3
• - Figure 5 is a sectional view along a horizontal diametral plane of the projector of Figure 3.
• the device for emitting a light beam comprises at least one lens 1 and means forming a beam cutoff line.
• said device allows the emission of a truncated light beam or at least having a very rapid decrease in brightness emitted below a certain level corresponding to said cutoff line.
• the beam is limited in a plane, in particular intended to be substantially horizontal and to be at a certain height above the roadway.
• said device is configured to allow adjustment of a positioning of said beam breaking, in a given direction, in particular intended to be vertical, depending on an angular positioning of said lens 1 around a hinge pin 3, intended to be oriented along the axis YY of the vehicle equipped with said device.
• said lens 1 comprises a portion 4, said optical beam transmission and a hinge portion 5 rotated about said hinge axis 3.
• Said optical portion 4 and said hinge portion 5 are advantageously made of the same material.
• said hinge portion 5 and said optical portion 4 are integral in one piece.
• the lens can be molded in one piece.
• Said device further comprises a light source 6, in particular a light-emitting diode, placed upstream of said lens 1 along an optical axis of said device.
• Said cut line is here obtained by a mutual arrangement of said lens 1 and said light source 6, as is known, in particular EP1762776 documents, in particular the embodiments corresponding to FIGS. 11 and following, and / or EP1970619, in particular the embodiment of Figure 1.
• said hinge pin 3 substantially passes through said light source 6.
• Said lens 1 may further have a focus at said light source 6. There is the kind of a beam whose characteristics do not vary according to the angular positioning of the lens 1 and therefore do not depend on the positioning of the cutoff line.
• Said optical portion 4 extends, for example, from arms 7 of said hinge portion 5 radially away from said hinge pin 3.
• said lens 1 comprises flanks extending towards said hinge pin 3 from a frontal zone 8 of said lens 1, said frontal zone 8 being the portion of said lens 1 furthest from said hinge axis 3.
• Said optical portion 4 of the lens 1 s extends in particular at the level of said frontal zone 8.
• Said arms 7 are located on either side of said optical portion 4, in the direction of said hinge pin 3. They include, for example, pins 9 for hinge the lens 1 about said hinge axis 3 Said pins 9 have a cylindrical shape and are oriented along said hinge axis 3. Said device is configured to allow a rotation of said journals 9 on themselves about said articulation axis 3 and, consequently, of the assembly of the lens 1 around the same axis.
• Said articulating part 4 furthermore comprises means for driving said lens 1 in rotation.
• Said drive means comprise, for example, at least one fork 11 having a ribbing, designed to cooperate with a set screw 12 , oriented transversely, in particular orthogonally, to said axis of rotation 3 and / or said ribbing. Said adjusting screw 12 will be detailed later.
• Said forks 11 are here issuing from said journals 9. They comprise lateral flanks 13, oriented radially with respect to the axis of rotation. Said lateral flanks 13 of the forks 11 are provided with ribs 14 facing each other from one of said lateral flanks 13 to the other. Said ribs 14 thus define a counterpart to a thread 15 located at said adjusting screw 12. Said ribs 14 are preferably radial and / or parallel to each other.
• Said forks 11 may further comprise a tongue 16 (FIGS. 4 and 5) located, in particular centered, between their radial flanks 13.
• Said tongue 16 is, for example, radial and serves as a radial stop for the adjusting screw 12.
• Said drive means are advantageously positioned on either side of said optical portion 4 of the lens 1, along said hinge axis 3.
• a fork 11 is provided here as described above at the level of each trunnion 9. In this way, it is possible to use an emission device which can be used in an undifferentiated manner in headlamps intended to be located on the right or left side of a vehicle with a symmetrization of the positioning of the adjusting screw.
• Said device may further comprise a fixed support 17 of said lens 1.
• Said fixed support 17 here comprising arms 18 for articulating rotation of said lens 1.
• Said arms 18 are intended to cooperate with said hinge portion 5 of the lens 1, in particular said pins 9, so as to give said lens 1 a degree of freedom in rotation about said axis articulation 3, under the action of the adjusting screw 12.
• Said arms 18 are radially derived from a base portion 19 of said fixed support 17 and they have at the distal end a fork 20, oriented radially so as to receive said journals 9 allowing them to rotate freely about said hinge axis 3.
• Said fixed support 17 here further comprises an electronic control card 21 situated vis-à-vis said base portion 19 of said support 17.
• Said card 21 serves, in particular, to control said light source 6.
• Said articulating arms 18 of the fixed support 17 extend on either side of said card 21, along said hinge axis 3.
• Said control card 21 is advantageously radially offset along the axis of rotation, that is to say, here, longitudinally along the overall axis OA of emission of the light source, with respect to said light source 6. Otherwise said, said light source 6 is raised relative to said control card 21. In this way it facilitates the passage of said hinge pin 3 by said light source 6.
• said light source 6 is located at a specific electronic card 22 of said device and said card 22 is raised relative to said control card 21, towards said hinge axis 3.
• Said specific card 22 is constituted, for example, of a substrate such as a SMI while said control card 21 is constituted, for example, of a substrate such as a FR4. Said specific card 22 is carried by said control card 21.
• Said emission device may further comprise a heat sink 23 provided at the rear of said base portion 19 of said fixed support 17 and / or a sheet of adhesive material 40 for fixing said control card 21 to said portion base 19 of said support.
• Said heat sink 23 is more particularly in heat exchange relation with said specific card 22.
• the invention also relates to a projector comprising said transmitting device.
• Said projector comprises a housing 50 defining a housing 52 for said transmitting device.
• said projector may further comprise a closure glass 54 and a possible style piece or cover 56 located between said closure glass 54 and said lens 1, along the optical axis of said emission device.
• Said headlight further comprises here an annular seal 58, in order to ensure a seal between said fixed support 17 and said housing 50. It may also include a ventilation device 57 for putting the housing 52 in communication with the outside.
• Said projector also comprises said adjusting screw 12.
• the latter comprises a head 60, allowing its manipulation, a rod 62 extending axially from said head 60 and, along said rod 62, said threading 15, intended for cooperate with said ribs 14 of the lens 1.
• Said thread 15 is configured to allow a rotation of said lens 1 in an angular range, for example, of +/- 5 °.
• said fixed support 17 may comprise an unclosed or closed contour, namely respectively a recess 90, as for example illustrated in FIG. 1, or a through hole 92, as for example illustrated in FIG. notch 90 and the through hole 92 are arranged to let the fork 11 of the hinge portion, and are sufficiently wide to allow the deflection of the fork 11 of the hinge portion. This allows a longitudinal mounting of the lens on the housing and through the support.
• the fork 11 of the hinge portion can be sufficiently protruded through the notch 90 or the through hole 92, so that the adjusting screw 62 articulates with the fork 11 of the hinge portion rearwardly. said support fixed. This increases the compactness, which is particularly advantageous in the case of an fog.
• Said housing 50 comprises at least one passage well 64 of said adjusting screw 12, here two so that said projector can be used in an undifferentiated position in right or left positioning, as mentioned above.
• Said adjusting screw 12 comprises means 66, known to those skilled in the art, allowing its articulation in a pivot connection in said wells 64.
• Said housing 50 is, for example, in the form of a substantially cylindrical envelope.
• the said well or wells 64 for passing the adjusting screws 12 are oriented substantially along two parallel ropes inside the said envelope.
• Said casing 50 comprises an inner face 59 provided with ribs 70 for guiding said articulating arms 18 of the fixed support 17.
• Said guide ribs 70 contribute to the fixing of said fixed support 17 in said casing 50, by means of said arms. hinge 18 of the fixed support 17.
• Said internal face 59 of the housing 50 may also comprise ribbing grooves 72, not visible in FIG. 1, of said hinge portion 5 of the lens 1, in particular said pins 9.
• Said snap-fastening ribs 72 are configured to allow a pivot connection between said lens 1 and said housing 50.
• the threading 15 acts on the ribs 14 and causes the pins 9 and thus the lens 1 to rotate about said hinge axis 3, said journals 9 being free to rotate in the hinge brackets 20 of the fixed support 17 and in the ratchet ribs 72 of said housing 50.
• the mounting of said emission device is effected by the rear and said housing 50 is closed at its longitudinal end opposite the closure glass 54 by said fixed support 17. Said ribs 70 and / or latching guide are then open towards the rear.
• the mounting of said transmitting device can also be carried out from the front in said casing 50.
• Said casing 50 is then closed at its end opposite to that closure glass 54 by a bottom wall 80, not visible in this figure.
• Said guide ribs 70 and / or said ratchet ribs 72 are then open towards the front.
• said bottom wall 80 may be made of material from the casing 82 of said casing 50.
• Said bottom wall 80 here has a through-hole 82 of a longitudinal protrusion of said support 17, in particular said heat sink 23.
• said gasket 58 seals with said bottom wall 80.
• FIGS. 4 and 5 make it possible to better visualize the positioning of said light source 9 along the axis of articulation 3 as well as the cooperation between the adjusting screw 12 and the fork 11, here the right fork of said hinge portion 5 of the lens 1.

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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)
• Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Priority Applications (8)

Applications Claiming Priority (2)

Publications (1)

Family

ID=47003044

Family Applications (1)

Country Status (11)

Cited By (8)

Families Citing this family (33)

Citations (8)

Family Cites Families (8)

• 2012
  • 2012-07-19 FR FR1256966A patent/FR2993632B1/fr active Active
• 2013
  • 2013-07-15 RU RU2015105589/07A patent/RU2597206C1/ru active
  • 2013-07-15 US US14/409,850 patent/US9664353B2/en active Active
  • 2013-07-15 WO PCT/EP2013/064882 patent/WO2014012878A1/fr not_active Ceased
  • 2013-07-15 PL PL13739395T patent/PL2875282T3/pl unknown
  • 2013-07-15 IN IN248DEN2015 patent/IN2015DN00248A/en unknown
  • 2013-07-15 JP JP2015522053A patent/JP6231096B2/ja active Active
  • 2013-07-15 CN CN201380038365.7A patent/CN105008793B/zh active Active
  • 2013-07-15 KR KR1020157001199A patent/KR102121631B1/ko active Active
  • 2013-07-15 EP EP13739395.5A patent/EP2875282B1/fr active Active
  • 2013-07-19 TW TW102125892A patent/TWI593911B/zh active

Patent Citations (8)

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