EP2341281A1 - Optisches Modul zur Erzeugung eines Code-Lichtstrahls und eines selektiven Lichtstrahls - Google Patents

Optisches Modul zur Erzeugung eines Code-Lichtstrahls und eines selektiven Lichtstrahls Download PDF

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Publication number
EP2341281A1
EP2341281A1 EP10193767A EP10193767A EP2341281A1 EP 2341281 A1 EP2341281 A1 EP 2341281A1 EP 10193767 A EP10193767 A EP 10193767A EP 10193767 A EP10193767 A EP 10193767A EP 2341281 A1 EP2341281 A1 EP 2341281A1
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EP
European Patent Office
Prior art keywords
optical module
movement
configuration
module according
code
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.)
Withdrawn
Application number
EP10193767A
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English (en)
French (fr)
Inventor
Pierre Albou
Vanesa Sanchez
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.)
Valeo Vision SAS
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Valeo Vision SAS
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Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP2341281A1 publication Critical patent/EP2341281A1/de
Withdrawn legal-status Critical Current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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • 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
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • 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
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • 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 optical module capable of alternately generating a code-type light beam and a selective light beam-type light beam.
  • Optical module means here an optical system adapted to receive at least one light source, disposed in a reflector, sometimes complex surface, and possibly associated with one or more dioptric elements of the lens or reflector type.
  • the conventional lighting devices that have just been mentioned, more particularly those that are used as low beam, produce light beams that are perfectible when used under certain conditions.
  • the headlights continue to illuminate right in front of them while it would be more advisable to direct the light beam in the direction of the bend. This is why, in addition to the classic main projector functions, particularly codes and routes, various improvements have gradually appeared.
  • AFS Advanced Front Lighting System in English for system advanced front lighting
  • DBL Dynamic Bending Light in English for light bend mobile, called turn code in French language
  • a lighting device with moving beam such a lighting device is able to change the orientation of a light beam produced by a lighting device, so that when the vehicle approaches a turn, the road is illuminated optimally, by following the geometry of the road.
  • a known technique is to make mobile the overall beam of the lighting device with an actuator controlling the pivoting, at least partial, of the lighting device according to information from the vehicle, for example via a steering wheel angle sensor.
  • Electroluminescent diodes have a number of advantages. First, for a long time, it is known that this type of diode does not radiate omnidirectionally, but radiates in a half space opposite to a substrate that supports the PN junction of the diode considered; thus, using more directional radiation, the amount of energy lost is less than with discharge or halogen lamps. Then, these diodes have recently been improved in terms of radiated power. In addition, manufactured diodes emit radiation for a long time in the red, but now also in particular in white and orange, which increases the scope of their possible uses. The amount of heat they release is relatively limited, and a number of constraints, related to the heat dissipation remain however important for the LEDs of power.
  • LEDs consume less energy, even at equal radiated power, than discharge lamps or halogen lamps; they are small in size, and their particular shape offers new possibilities for the realization and arrangement of the complex surfaces associated with them, in particular by arranging them on electronic supports of the flexible electronic support type.
  • dual-function optical modules are used; in the bifunctional optical modules of these projectors devices, the switching of the code function to the road function, and vice versa, can be automatic, said switching depending on the traffic conditions.
  • the search is made for the presence of a vehicle likely to be dazzled by use of the road function. If no vehicle is detected, the route function is automatically activated. As soon as the presence of a vehicle is detected, the road function is automatically deactivated, and the vehicle equipped with the dual-function projector again presents a code-type light beam.
  • the threshold value from which the absence of a detected vehicle allows switching to the road function is approximately 600 meters.
  • the code function is activated.
  • this function provides satisfactory illumination only over a distance of approximately 80 meters at the central part of the road, and 150 meters on the side of the road where the vehicle is traveling (ie the lower right-hand side in the frame of a traffic right); the lighting thus being essentially on the right side of the road in the case of traffic on the right, the left side of the road being significantly less light.
  • a first solution could consist in producing a projector in which, apart from a first optical module producing a code-type light beam, in order to perform the DBL function, a second optical module used to produce a beam of selective type, with an L-shaped cut-off line.
  • a "L" -shaped cut-off line designates a cut-off line with a first substantially horizontal portion, which is interrupted by a generally vertical ascent. that is to say between 45 degrees and 135 degrees, of the cut line considered, the horizontal portion of the cut line considered extending either to the right or to the left of said generally vertical rise.
  • an LED light source is used for each module, essentially because of the advantages which have been mentioned above.
  • the use of the LEDs if it is advantageous, is not limiting.
  • Other light sources such as xenon lamps or halogen lamps could be used in the various modules described.
  • the substantially elliptical surface 106 is made in the form of an angular sector substantially of revolution and which extends in the half-space above an axial plane perpendicular to the plane of the sheet and containing the axis A1 optical. As a first approximation, the surface 106 is a half ellipsoid.
  • the light source 105 is arranged substantially at the first focus F1 of the first reflector 102.
  • the light source 105 is a light-emitting diode which emits the majority of its light energy towards the reflecting inner surface of the substantially elliptical surface 106.
  • the optical axis A2 is substantially parallel to the longitudinal axis of a vehicle not shown and equipped with the lighting module 101.
  • the optical axis A1 forms an angle ⁇ with the optical axis A2.
  • the angle ⁇ is equal to 90 °; other embodiments, with another value of this angle, are possible, however.
  • the reflective surface 107 is for example of substantially paraboloidal shape, the axis of the parabola being the optical axis A2.
  • the third reflector 114 is located between the first reflector 102 and the second reflector 112 and comprises at least one reflective upper face 108 and a front end edge 109, said cutting edge.
  • the cutoff edge 109 is arranged in the vicinity of the second focus F2 of the first reflector 102.
  • the light source 105 is arranged at the first focus F1 of the first reflector 102, the majority of the rays emitted by the source 105, after being reflected on the internal face 106, is returned to the second focus F2 or in the vicinity of that -this. This is the case of the radius R1 which passes along the cutoff edge 109. The radius R1 is then reflected on the surface 107 of the second reflector 112 in a direction substantially parallel to the optical axis A2 of the second reflector 3.
  • the light source having a certain extent, other rays will not be emitted exactly at the first focus F1 and may, after being reflected on the inner face 106, reflect on the surface 108 of the folder 114; this is the case of the radius R2.
  • the ray R2 will then reflect again on the paraboloidal surface 107 and this reflection will be to the left in the plane of the figure 1 .
  • the radius R2 is thus emitted under the cut-off in the lighting beam. Without the reflection of R2 on the surface 108, the radius R2 would have been unacceptable, since it would have produced a lighting zone above the cutoff line.
  • the reflective surface 108 of the folder 114 allows to "fold" the images of the light source 105 which are reflected by the elliptical surface 106 of the first reflector 102 to the second focus F2.
  • the "fold” formed by this "folding" of images contributes to forming a clean cut in the illumination beam reflected by the second reflector 112.
  • optical module 101 does not obscure, thanks to the third reflector 114 of the folding type, a significant portion of the light rays emitted by the source 105, as is the case in a conventional lighting module comprising a cache, but returns the rays it reflects below the cut.
  • the cutoff edge 109 being arranged in the vicinity of the second focus F2 of the first reflector 102, it is the shape of the cutoff edge 109 which determines the shape of the cutoff line of the elementary beam produced by the module. considered optical.
  • the folder has a first portion with a horizontal surface 111 and a second portion 113 with a surface inclined at an angle of 15 ° downward from the plane containing the surface of the first portion. It thus makes it possible to obtain a beam of the European dipped beam type with a horizontal cut on the left and an oblique cut going upwards on the right.
  • this angle may vary as well as the shape of the brake to obtain a regulation dipped beam.
  • the cut-off edge In order to obtain an "L" shaped cut-off line, the cut-off edge must itself have an "L" shape, with a first portion and a second portion having an angle of about 90 degrees between them, or less between 45 degrees and 135 degrees.
  • the angle ⁇ between the two axes A1 and A2 is chosen and optimized by using the property of the diodes to emit only in a half-space so that the first reflector 102 does not intercept part of the flux reflected by the second reflector 112.
  • the angle ⁇ chosen here is equal to 90 ° but this angle can also be greater than 90 ° in order to obtain a more compact module while allowing the first reflector 102 not to intercept a part of the reflected flux. by the second reflector 112.
  • modules in which the reflector 112 is substituted by a convergent lens whose focus is placed at the second reflector and with an optical axis placed along that of the first reflector, so that the module optical emits light according to the latter.
  • a first solution for proposing a projector performing a DBL function, and capable of performing both a conventional code cut and a cutoff contributing to the production of a selective beam consists in having a first optical module and a second optical module of the type described in FIG. those represented at Figures 1 and 2 each module producing a specific cut-off line, with a first cut-off line corresponding to the conventional code function, and a second cut-off line corresponding to an L-shaped cut-line.
  • an optical module is proposed, in particular an optical module intended to be integrated in a projector performing a DBL function, capable of producing a conventional code function and of producing a selective type of light beam, whose space requirement is limited. and whose manufacturing cost is not excessive.
  • the two light beams, the conventional code-type light beam and the selective-type light beam are produced by the single optical module according to the invention.
  • the invention proposes the use of a particular cache, the cache comprising a first portion and a second portion movable relative to each other, so that the light beam produced by the optical module considered can evolve, depending on the relative position of the two parts of the cache, between a conventional code-type light beam and a selective light beam, and vice versa.
  • the present invention also relates to a projector comprising an optical module according to the invention with its main characteristics previously specified, and possibly one or more additional characteristics which have just been mentioned.
  • the projector according to the invention comprises a structure movable in rotation about a substantially vertical axis adapted to perform a turn code function, said optical module being disposed on the mobile structure.
  • the present invention further relates to a set of projectors comprising first and second projectors for mounting on each side of a vehicle.
  • the first projector makes it possible to generate a coded beam and a beam with an L cut, the horizontal portion of which is on the same side as the horizontal portion of the code beam.
  • the second projector makes it possible to generate a code beam and a beam with an L cut, the horizontal portion of which is on the same side as the dazzling portion of the code beam.
  • the first and second headlamps comprise an optical module comprising an articulated cap comprising three parts, as previously described, the three parts of the cache of the optical module of the first projector making it possible to generate a coded beam, a motorway beam, and a beam with an L cut whose low horizontal portion is on the same side as the low horizontal portion of the beam code, and the three cache portions of the optical module of the second projector for generating a beam code, a motorway beam and a beam with an L cut whose low horizontal portion is on the same side as the dazzling portion of the code beam.
  • the present invention finally relates to a motor vehicle equipped with a projector according to the invention.
  • FIG. 2 schematically, the various lines of cut that, in the invention, one seeks to produce by means of a single optical module.
  • an optical module intended to equip a straight projector, to alternately generate a first cut line 203 of conventional code type and a first cut-off line 204 in FIG. L-shaped, whose horizontal portion is on the same side as the horizontal portion of the cutoff line 203 of the code beam.
  • the superposition of the two coded beams with the cut lines 201 and 203 will make it possible to have a coded beam with a cut-off line, including a dazzling portion on the right and a non-dazzling portion on the left.
  • the superposition of the beams with the second L-shaped cut-off line 202 and the first L-shaped cut-off line 204 makes it possible to produce a selective-type light beam 205.
  • a dazzling portion on the left and a dazzling portion on the right are obtained and since the dazzling portions of each beam are not superimposed, the beam 205 has a dark zone delimited by the vertical portions of the L-shaped cut lines of each module. Thanks to the moving means of the optical modules in the projector, we can move this dark area on a vehicle tracked or crossed, so as not to dazzle the driver. By separating the vertical portions of the cuts from one another, this dark area is increased, thus making it possible to adapt the beam at the size of the vehicle, at its distance or also to encompass several vehicles.
  • FIGS 3-A to 3-D show a first embodiment of an optical module 301 according to the invention.
  • the first reflector 102 we find as in the figure 1-A the first reflector 102, a cache-type element 103, which is in this example of the folding type, and a lens 104.
  • the folder 103 consists of a first portion 302 and a second part 303, whose junction is located at the optical axis O of the optical module 301 considered.
  • the Figures 3-C and 3-D show the optical module 301 intended to equip a first projector, in this example a right vehicle projector.
  • the Figures 3-A and 3-B show a first optical module 301 for equipping a second projector, in this example a vehicle left projector.
  • the figure 3-A shows the optical module 301 in a first configuration 304, in which the light beam produced is the light beam 201 of conventional code type or passing light, for traffic on the right.
  • the second portion 303 has a horizontal upper portion and the first portion 302 of the folder 103 is slightly inclined, preferably 15 degrees downwardly from the horizontal, so as to produce the light beam 201 with illumination taken on the right side of the road.
  • the cutting edge of the folder 103 in this first configuration 304 being positioned at the level of the focal line passing through the second focus F2 of the reflector, allows the generation of the conventional code-type light beam 201.
  • the figure 3-B shows the optical module 301 in a second configuration 305, in which the light beam produced is the light beam 202 of the L-shaped light beam type.
  • the first part 302 of the folder 103 has an upper part. horizontal.
  • the second part 303 also has a horizontal upper part, but offset, with respect to the first configuration, towards the light source of the optical module 301, thus focussed with respect to the focus F2.
  • the cutting edge of the first portion 302 of the folder 103 in this second configuration allows the generation of the light beam 202 having a horizontal cut right and a cut upwardly in this example almost vertical, contributing to the realization of an "L" beam with horizontal cut right.
  • the figure 3-C shows the optical module 301 in a first configuration 306, in which the light beam produced is the conventional code-type light beam 201, for right-hand traffic.
  • the first portion 302 of the folder 103 is slightly inclined, so as to produce the light beam 203, identical to the light beam 201, with a lighting raised on the right side of the road.
  • the second portion 303 has a horizontal upper portion.
  • the figure 3-D shows the optical module 301 in a second configuration 307, in which the light beam produced is the light beam 204 of the L-shaped light beam type.
  • the second portion 303 has a position identical to the occupied position. in the first configuration 306.
  • the first portion 302 of the folder 103 has an inclined upper portion, but offset from the first configuration 306, to the light source of the optical module 301, thus defocused with respect to the second focus F2 of the first reflector 102.
  • the cutting edge of the folder 103 in this second configuration 307 allows the generation of the light beam 204, having a horizontal cut on the left and an upward cut, in this example almost vertical, contributing to the realization of an "L" beam with horizontal cut to the left.
  • the overall beam will result from the fusion of the beams 201 and 203.
  • the overall beam will result from the fusion of the beams 202 and 204.
  • the two beams are inverted, one with a cut on the left, the other with a cut right.
  • a horizontal angular offset is introduced between the two vertical cuts so that by melting the two beams 202 and 204, a beam with a shadow zone is thus obtained.
  • This beam constitutes the so-called selective beam, because by positioning the shadow zone on a vehicle arriving in the opposite or following direction, it makes it possible to select just the necessary zone so as not to dazzle the driver of a vehicle arriving in the opposite direction or followed . Detection of the vehicle arriving in the opposite direction or tracking can be performed using known means.
  • the shadow area is adjusted by orientation of the right and left optical modules.
  • the passage from the first configuration to the second configuration is performed with a displacement of the first portion 302 relative to the second portion 303 in a direction 401, shown in FIG. figure 4-A overall axial.
  • the transition between the first configuration 304 and the second configuration 305 is illustrated by means of the Figures 4-A to 4-D , where the cache is observed from the lens.
  • the figure 4-B shows the brake 103 in code position seen from the lens 104
  • the Figure 4-C shows the folder 103 in the "selective beam" configuration seen from the lens 104.
  • the figure 4-A and the figure 4-D show the folder 103 respectively in perspective and in view from below.
  • the first part 302 of the folder 103 has on a lateral face a guide track 404 in which a guide pin 405 is present on a lateral face of the second part 303 of the folder 103, the guide rail 404 having a variable depth, the guide pin 405 being maintained, during the relative movement of the first portion 302 relative to the second portion 303, in contact with the bottom of said slide 404.
  • the first part 302 is rotated about a horizontal axis because of the presence of the guiding and holding system consisting of the part 409 and a drive pin 407, which causes on this occasion a gap 406 between the first portion 302 and the second portion 303, the second portion no longer at the second focus F2 of the first reflector 102.
  • Such a design makes it possible to use only one actuator to make the brake 103 evolve from one configuration to another.
  • the actuator used simply causes, in the example shown, the second part 303, horizontally.
  • the movement of the first portion 302 relative to the second portion 303 results in a substantially horizontal translational movement of the first portion 302 relative to the second portion 303, the second portion remaining stationary between the two configurations.
  • the first portion 302 of the folder 103 has on a lateral face a guide rail in which a guide pin present on a side face of the second portion 303 of the mirror type 103, the guide rail having a constant depth, the guide pin being maintained in contact with the bottom of said guide rail.
  • FIGS. 5-A to 5-D show a second embodiment of an optical module 501 according to the invention.
  • the first reflector 102 we find the first reflector 102, the second reflector 103, folding type, and the lens 104.
  • the folder 103 consists of a first portion 502 and a second portion 503, the junction is located at the optical axis O of the optical module 501 considered.
  • the Figures 5-C and 5-D show the optical module 501 intended to equip a first projector, in this example a straight projector.
  • the Figures 5-A and 5-B show the optical module 501 for equipping a second projector, in this example a left projector.
  • the figure 5-A shows the optical module 501 in a first configuration 504, wherein the light beam produced is the light beam 201 of conventional code type.
  • the first portion 502 of the folder 103 is slightly inclined, so as to produce the light beam 201 with illumination raised on the right side of the road.
  • the second portion 503 has a horizontal upper portion.
  • the cutting edge of the folder 103 in this first configuration 504 allows the generation of the conventional code-type light beam 201.
  • the figure 5-B shows the optical module 501 in a second configuration 505, in which the light beam produced is the light beam 202 of the L-shaped light beam type.
  • the first part 502 of the folder 103 has an upper part. horizontal.
  • the second portion 503 has an inclined upper portion, and offset, with respect to the first configuration, downwardly. Only the first part 502 is at the second focus F2 of the first reflector 102.
  • the second part 503 of the folder is certainly shifted downwards with respect to F2 but remains nevertheless in the focal plane of the lens and also participates in the cut .
  • the cutting edge of the folder 103 in this second configuration 505 allows the generation of the light beam 202, contributing to the production of a beam having a horizontal cut on the right and an upward cut up, in this example almost vertical , contributing to the realization of an "L" beam with horizontal cut right.
  • the figure 5-C shows the optical module 501 in a first configuration 506, in which the light beam produced is the conventional code-type light beam 203.
  • the first portion 502 of the folder 103 is slightly inclined, so as to produce the light beam 203, identical to the light beam 201, with a light raised on the right side of the road.
  • the second portion 503 has a horizontal upper portion.
  • the cutting edge of the folder 103 in this first configuration 306 allows the generation of the conventional code-type light beam 203.
  • the figure 5-D shows the optical module 501 in a second configuration 507, in which the light beam produced is the light beam 204 of the L-shaped light beam type.
  • the first portion 502 of the folder 103 has an upper portion. inclined, but offset from the first configuration 506, downward. Only the first portion 502 is at the second focus F2 of the first reflector 102 and contributes to the formation of the horizontal cut.
  • the second part 503 has a position identical to the position occupied in the first configuration 506.
  • the cutting edge of the folder 103 in this second configuration 507 allows the generation of the light beam 204, contributing to the production of a beam having a horizontal cut on the left and a cut upward, in this example almost vertical, contributing to the achievement of an "L" beam with horizontal cut to the left.
  • the passage from the first configuration to the second configuration is performed with a displacement of the first portion 502 relative to the second portion 503 in a direction 601, shown in FIG. Figure 6-A globally vertical.
  • the transition between the first configuration 504 and the second configuration 505 is illustrated by means of the Figures 6-A to 6-E , where the cache is observed from the lens.
  • the Figure 6-B shows the brake 103 in code position seen from the lens 104
  • the Figure 6-C shows the folder 103 in "beam" configuration selective "seen from the 104 lens.
  • Figure 6-A , the figure 6-D and the figure 6-E show the folder 103 respectively in perspective, in bottom view in code configuration, and in bottom view in selective beam configuration.
  • the first part 502 of the folder 103 has on a lateral face a guide rail 605 in which a guide element 606 moves, in particular in the shape of a tail. dovetail, present on a side face of the second portion 503 of the folding mirror 103
  • the first portion 502 is driven in translation 603 downwards and in rotation 602 because of the presence of a fixed guide and hold member. in which circulates a piece of the piece, in a guide rail, rectilinear, inclined.
  • the axis of the pawn describes a straight line while the piece rotates around the axis of the pawn.
  • the actuator used drives, in the example shown, a drive pin 610 present on a lateral face of the first portion 502, evolving, to achieve the relative movement of the first portion 502 relative to the second part 503, in a guide rail 611 formed in a holding part 609.
  • a second guiding pin 607 present on a lateral face of the second part 503, moving in a guide rail 608 formed in the holding part 609, rail whose shape depends on the position of the pin 607 (it is straight if the axis of the pin 607 coincides with that of the pin 701) .
  • the movement of the first portion 502 relative to the second portion 503 results in a substantially vertical translation movement of the first portion 502 relative to the second portion 503, the second portion 503 remaining stationary between the two configurations.
  • the first portion 502 of the folder 103 has on a lateral face a guide rail in which a simple guide pin, present on a lateral face of the second part, evolves. 503 of the folding type mirror 103, the guide rail having a constant depth, the guide pin being kept in contact with the bottom of said guide rail.
  • an articulated cover 800 equipping a first optical module for equipping a straight projector, in different positions allowing, in combination with an articulated cover 700 shown in FIGS. Figures 7-A to 7-E , equipping a second optical module intended to equip a left projector, to generate different types of light beams.
  • Articulated covers 700 and 800 are shown from the light source opposite which they are arranged in their respective optical module.
  • the first element 702 thus has on one side a contiguous or quasi-contiguous edge with the third element 701, and on the other, a contiguous or quasi-contiguous edge with the second element 703.
  • first fixed guide rail 705 On either side of the hinged cover 700 are arranged a first fixed guide rail 705, a second movable guide rail 706 secured to the second member 703, and a third fixed guide rail 707.
  • the first guide rail 705 receives a first guide pin 708 disposed at a first end 711 of the first movable member 702; the second guide rail 706 receives a second guide pin 709 disposed at a second end 712 of the first movable member 702; the third guide rail 706 receives a third guide pin 709 disposed at a lower end 713 of the second movable member 703.
  • the cover is driven in motion for example by an action on one of the guide pins.
  • the first guide pin 708 to move in the first guide rail 704
  • the first member 702 gradually drives the second member 703 into motion by pushing it.
  • FIG 7-A the relative positions of the different elements 701, 702 and 703 can be changed, so that, by rotating the central part 702 in one direction, the upper face 704 contributes to the production of a light beam successively of the motorway type ( Figure 7-C ), code type ( figure 7-D ) and, turning the central part in the opposite direction, the upper face 704 contributes to the production of a beam with an L-cut for a selective beam ( Figure 7-E ).
  • This device also makes it possible to produce a progressive-type beam that changes the beam emitted between the code beam corresponding to the code configuration of the cache 700 (FIG. figure 7-D ) and an extreme position of the progressive beam, corresponding to the extreme progressive configuration.
  • the elements of the mask will be varied towards the beam corresponding to the plane configuration ( figure 7-A ) or to the configuration code ( figure 7-D ).
  • An intermediate configuration for achieving a progressive beam position is illustrated in FIG. figure 7-B .
  • the other elements 702 and 703 move relative thereto.
  • the first optical module is mounted in the left projector of a vehicle, it is necessary to adjust the optical axis of the left optical module so as to position the cuts at the desired level or at the level required by the regulations.
  • FIG 9 schematically represents the various lines of cuts 10g, 20g, 30g, 40g and 50g in the reference along the vertical axis V and the horizontal axis H, without an adjustment of the optical axis of the projector has been made .
  • This mark corresponds to the screen on which the light beam is projected at a given distance from the vehicle, for example 25 meters.
  • the horizontal cut lines on the left 14g, 24g, 34g and 44g, side of the track of the crossed vehicles, are generated thanks to the cutting edge of the second part of the cache 703.
  • the central oblique cut lines 12g, 22g, 32g and 42g are generated thanks to the cutting edge of the second part of the cache 702.
  • the horizontal portions 16g, 26g, 36g and 46g as well as the straight portion of the cutoff line 50g, which correspond to the cutoff portion generated by the fixed element 701, would be found at the same level without adjustment.
  • the cutoff line of the code 20g is positioned correctly with a low horizontal portion 24g below the horizon, preferably 0.57 degrees below the horizon, an oblique portion which begins approximately at the vertical axis V, passes over the horizon, to the right of the vertical axis V, and ends on the right by a horizontal portion, here purely illustrative at 1.7 degrees above the horizon.
  • the cache will evolve from the code configuration ( Fig. 7D ) to the selective beam configuration ( Fig. 7E ), to a motorway beam configuration ( Figure 7C ).
  • a cutoff line 30g whose oblique portion 32g is at an angle of 13 degrees relative to the extension of the portion horizontal high 36g, against 15 degrees for the oblique portion 22g relative to the extension of the high horizontal portion 26g of the cut line 20g of the code beam.
  • the low horizontal portion 34g of the cutoff line 30g as well as the oblique portion 32g in the freeway beam, are thus higher than the corresponding portions 24g and 22g of the cutoff line 20g of the code beam.
  • a lateral adjustment of the axis of the optical module is preferably performed to replace the intersection of the cutoff portions 30g and 34g on the vertical axis V.
  • the cache will evolve between a code configuration ( Figure 7D ) and a progressive configuration.
  • the low horizontal portion of cut of the beam will evolve between a position of the low horizontal portion 24g of the code and a position of the low horizontal portion 44g of the cut 40g of the progressive beam in the extreme position, here at the horizon.
  • the oblique cut will evolve between an oblique portion of the code 22d and an oblique portion 42g making an angle of 11 degrees with the extension of the high horizontal portion 46g.
  • the high horizontal portions 26g and 46g of the code beam and the progressive beam in extreme position are at the same level. It will not be necessary to vertically adjust the optical axis of the optical modules relative to the vehicle.
  • the cache 700 reaches a plane configuration ( Fig. 7A ) allowing the generation of a plane cut 50g.
  • the plane cut 50g is found at the level of the high horizontal cut of the code beam, the beam will be long range and will illuminate over the horizon, in this example 1.7 degrees above the horizon. It is thus possible to make a road beam.
  • it will be necessary to make a vertical downward adjustment 11g to reduce the cut below the axis of the horizon H, preferably 0.57 degrees below this axis.
  • To make a fog lamp it will be necessary to extend the vertical adjustment, to reduce the cut to about 1 degree below the axis of the horizon.
  • the coding low horizontal portion 24g becomes the high horizontal cutoff portion 14g and the code high cutoff portion 26g becomes the low horizontal cutoff portion 16g. Since the first element 701 of the cache is fixed, without correction, the L-beam will illuminate entirely well above the horizon line, as can be seen in FIG. figure 9 .
  • the optical module is adjusted to position the lower horizontal portion of the L cut below the horizon, preferably 0.57 degrees below the horizon. horizon or has a height calculated according to the distance of vehicles tracked or crossed.
  • the first element 802 thus has on one side a contiguous or quasi-contiguous edge with the third element 801, and on the other, a contiguous or quasi-contiguous edge with the second element 803.
  • first fixed guide rail 805 On either side of the hinged cover 800 are arranged a first fixed guide rail 805, a second movable guide rail 806 secured to the second member 803, and a third fixed guide rail 807.
  • the first guide rail 805 receives a first guide pin 808 disposed at a first end 811 of the first movable member 802; the second guide rail 806 receives a second guide pin 809 disposed at a second end 812 of the first movable member 802; the third guide rail 806 receives a third guide pin 809 disposed at a lower end 813 of the second movable member 803.
  • the cover is driven in motion for example by an action on one of the guide pins.
  • the first guide pin 808 to move in the first guide rail 804
  • the first member 802 gradually drives the second member 803 into motion by pushing it.
  • the relative positions of the various elements 801, 802 and 803 can be changed, so that the upper face 804 contributes to the production of a light beam successively of the motorway type ( figure 8-C ), code type ( figure 8-D ) and finally of selective type ( Figure 8-E ).
  • This device also makes it possible to produce a progressive-type beam changing the beam emitted between the code beam corresponding to the code configuration ( figure 8-D ) and the extreme position of the progressive beam, corresponding to the extreme progressive configuration, the configuration represented in figure 8-B representing a median configuration to achieve a middle position of the progressive beam.
  • the other elements 802 and 803 move relative thereto.
  • the second optical module is mounted in the right projector of a vehicle, it is necessary to adjust the optical axis of the optical module left projector so as to position the cuts at the desired level and / or level required by the regulations.
  • FIG 10 schematically represents the various lines of cuts 10d, 20d, 30d, 40d and 50d in a reference system containing the vertical axis V and the horizontal axis H, without an adjustment of the optical axis of the optical module has been made.
  • the cache 700 for an optical module fitted to a vehicle left projector it is the first element 803 which makes it possible to produce the low horizontal portion 24d of the cutoff line of the code beam 20d.
  • the fixed element 801 of the cover 800 for the right projector will make the high horizontal portions 26d, 36d and 46d respectively of the cuts of the 20d code beams, highway 30d and the extreme position of the progressive beam 40d, the central element 802 for making the corresponding oblique portions 22d, 32d and 34d of the cuts of these beams.
  • the cover 800 for the right projector and the corresponding cuts will evolve in the same way as the cover 700 and the corresponding cuts for the left projector.
  • a horizontal adjustment 43d will be made to maintain the cut line below the horizon H at the vertical axis V.
  • the optical module will be adjusted 51d vertically and down to bring the cutting under the horizon to achieve a tourist beam, preferably at 0.57 degrees, or 1 degree, to achieve a fog light. It is possible not to adjust the optical module to achieve a road beam.
  • the low horizontal portion 16d of the L-cut is situated on the same side as the low horizontal portion 24d of the cut-off line of the code 20d. It will therefore always be necessary to make a vertical adjustment 11 d of the optical module but this time upwards, preferably to bring this low horizontal portion 16d to 0.57 degrees below the horizon line.
  • the cache 700 for the left projector by stopping the mobility of the second element 703 before it reaches its position to achieve the high horizontal cutoff portion 14g of the L-cut beam, and adjusting the left optical module relative to the projector, it is possible to make code, motorway and progressive beam cuts for traffic on the left.
  • the cache for the optical module of the right projector it is possible to use a variant of the cache 800 of the Figures 8A to 8E , where the guide rails 805, 806 and 807 are extended, in this example and in these figures in the direction of clockwise.
  • the guide rails 805, 806 and 807 are extended, in this example and in these figures in the direction of clockwise.
  • the progressive beam can be produced by changing the beam emitted only between the motorway beam, corresponding to the motorway configuration ( Fig. 7C and Fig. 8C ), and the extreme position of the progressive beam.
  • the beams of the left projector optical module and the beams of the right projector optical module are superimposed to produce the code, highway, progressive and selective beams.
  • the movement of the optical modules is added to obtain a dark zone in the beam, in the same way as it has been described in FIG. figure 2 .
  • the light sources used are of the LED type.
  • a large amplitude in the variation of the intensity of each elementary light beam produced by the optical modules according to the invention comprising at least one LED.
  • the variation of the luminous intensity thus produced by each optical module thus advantageously makes it possible to increase the performances in terms of progressivity and selectivity of the light beam thus generated.
  • the optical module according to the invention is arranged in the projector on a mobile structure rotating in rotation about a vertical axis, thus enabling the realization of a DBL function.
  • the optical module according to the invention is disposed on a mobile structure evolving in rotation about a horizontal axis, thus enabling the realization of a dynamic correction function.
  • the projectors equipped with these modules have DBL function and dynamic correction systems, these systems being used to make the adjustments required by the various modes and embodiments of the present invention.
  • the embodiments have been described for traffic conditions in traffic on the right, with the exception of an alternative embodiment operating in both right-hand and left-hand traffic.
  • the covers of these embodiments may also be symmetrically inverted to make caches suitable for being adapted to projectors for traffic conditions in left-hand traffic.

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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)
EP10193767A 2009-12-08 2010-12-06 Optisches Modul zur Erzeugung eines Code-Lichtstrahls und eines selektiven Lichtstrahls Withdrawn EP2341281A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0958725A FR2953468B1 (fr) 2009-12-08 2009-12-08 Module optique apte a generer un faisceau lumineux de type code et un faisceau lumineux selectif

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EP2341281A1 true EP2341281A1 (de) 2011-07-06

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EP (1) EP2341281A1 (de)
JP (2) JP5873628B2 (de)
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977927A1 (fr) * 2011-07-13 2013-01-18 Valeo Vision Dispositif d'eclairage/signalisation multifonctions pour vehicule automobile.
EP2565530A1 (de) * 2011-09-05 2013-03-06 Valeo Vision Optisches Modul für Vorrichtung zur Signalisierung und/oder Beleuchtung
EP2395280A3 (de) * 2010-06-09 2014-01-08 Koito Manufacturing Co., Ltd. Optische Einheit für Fahrzeugsbeleuchtungseinrichtung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5869807B2 (ja) * 2011-09-01 2016-02-24 スタンレー電気株式会社 プロジェクタ型ヘッドランプ
KR102036096B1 (ko) * 2013-06-11 2019-10-24 현대모비스 주식회사 헤드램프용 쉐이드
FR3021392B1 (fr) 2014-05-20 2018-11-02 Valeo Iluminacion Module optique elliptique pour dispositif d'eclariage automobile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294589A2 (de) * 1987-06-12 1988-12-14 Robert Bosch Gmbh Abblendlichtscheinwerfer
DE102007045150A1 (de) * 2006-09-27 2008-04-17 Volkswagen Ag Scheinwerferanordnung für ein Fahrzeug und Verfahren zum Steuern einer Scheinwerferanordnung
EP2098775A2 (de) * 2008-03-05 2009-09-09 Koito Manufacturing Co., Ltd. Scheinwerfer für Fahrzeuge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005332631A (ja) * 2004-05-18 2005-12-02 Koito Mfg Co Ltd 車両用灯具
JP4497056B2 (ja) * 2005-08-19 2010-07-07 市光工業株式会社 車両用前照灯
EP2088365B1 (de) * 2006-09-27 2012-11-14 Volkswagen Aktiengesellschaft Scheinwerferanordnung für ein Fahrzeug
JP2010061985A (ja) * 2008-09-03 2010-03-18 Koito Mfg Co Ltd 車両用前照灯
JP5476074B2 (ja) * 2009-09-18 2014-04-23 株式会社小糸製作所 車両用前照灯
JP2011090839A (ja) * 2009-10-21 2011-05-06 Koito Mfg Co Ltd 車両用前照灯

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294589A2 (de) * 1987-06-12 1988-12-14 Robert Bosch Gmbh Abblendlichtscheinwerfer
DE102007045150A1 (de) * 2006-09-27 2008-04-17 Volkswagen Ag Scheinwerferanordnung für ein Fahrzeug und Verfahren zum Steuern einer Scheinwerferanordnung
EP2098775A2 (de) * 2008-03-05 2009-09-09 Koito Manufacturing Co., Ltd. Scheinwerfer für Fahrzeuge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2395280A3 (de) * 2010-06-09 2014-01-08 Koito Manufacturing Co., Ltd. Optische Einheit für Fahrzeugsbeleuchtungseinrichtung
FR2977927A1 (fr) * 2011-07-13 2013-01-18 Valeo Vision Dispositif d'eclairage/signalisation multifonctions pour vehicule automobile.
EP2546569A3 (de) * 2011-07-13 2013-03-13 Valeo Vision Multifunktions-Beleuchtungs-/Signalisierungsvorrichtung für Kraftfahrzeug
EP2565530A1 (de) * 2011-09-05 2013-03-06 Valeo Vision Optisches Modul für Vorrichtung zur Signalisierung und/oder Beleuchtung
FR2979688A1 (fr) * 2011-09-05 2013-03-08 Valeo Vision Module optique pour dispositif de signalisation et/ou d'eclairage

Also Published As

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JP5873628B2 (ja) 2016-03-01
FR2953468A1 (fr) 2011-06-10
JP6141942B2 (ja) 2017-06-07
JP2016012577A (ja) 2016-01-21
FR2953468B1 (fr) 2012-05-25
JP2011129514A (ja) 2011-06-30

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