EP0828112B1 - Signalleuchte mit additiver Farbmischung - Google Patents

Signalleuchte mit additiver Farbmischung Download PDF

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Publication number
EP0828112B1
EP0828112B1 EP97402047A EP97402047A EP0828112B1 EP 0828112 B1 EP0828112 B1 EP 0828112B1 EP 97402047 A EP97402047 A EP 97402047A EP 97402047 A EP97402047 A EP 97402047A EP 0828112 B1 EP0828112 B1 EP 0828112B1
Authority
EP
European Patent Office
Prior art keywords
light according
filters
colouring
facets
light
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.)
Expired - Lifetime
Application number
EP97402047A
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English (en)
French (fr)
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EP0828112A1 (de
Inventor
Vincent Godbillon
Benoist Fleury
Vincent Duflos
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR9610835A external-priority patent/FR2752914B1/fr
Priority claimed from FR9700773A external-priority patent/FR2758874B1/fr
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP0828112A1 publication Critical patent/EP0828112A1/de
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Publication of EP0828112B1 publication Critical patent/EP0828112B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/255—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like

Definitions

  • the invention relates to signaling lights, especially for a motor vehicle.
  • a motor vehicle light comprising a light source and a blade extending in the path of the light beam.
  • the blade has an upstream face with profiled facets of curved section parallel to each other. These facets are adapted to split the beam into a first set of beams elementary and a second set of beams elementary, each elementary bundle being converge.
  • the upstream side of the blade carries filters coloring, for example of green color, extending in the path of the elementary beams of the first set.
  • the downstream side of the blade carries other filters of coloring, for example red, extending especially in the path of the elementary beams of the second set, except on parallel lines corresponding to the path of the elementary green beams of the first set.
  • the two green and red elementary beam sets add together according to a synthesis process additive to constitute a unique color beam white.
  • the face downstream of the blade mostly red, gives the fire a general appearance of red color while the fire in service produces a white beam.
  • the blade has a complex and precise structure including diopters and colored filters to achieve both convergence of each of the elementary beams and their coloring according to the respective colors. The making this blade is relatively difficult and expensive. In addition, this blade structure limits the possibilities of arrangement of filters and diopters.
  • Document DE-42 28 928 presents a traffic light signage including a first colored blade in ground and bearing dioptres alternated with slits crossing the thickness of the blade.
  • the fire includes a second blade colored in the mass in another color and wearing dioptres alternated with bands leaving unchanged the orientation of the beam.
  • the beams crossing the diopters of the first blade are colored and made convergent, then cross the bands of the second blade.
  • the beams crossing the slots of the first blade then cross the diopters of the second blade to be colored and rendered in turn converged.
  • An object of the invention is to reduce the amount colored matter required for the filters, and improve the aesthetics of the extinguished fire. Another purpose of the invention is to provide new possibilities for arrange filters and dioptres.
  • the filters can have very small dimensions.
  • the quantity of colored material required in the color exactly required is therefore moderate.
  • the aesthetics of fire extinguished, in particular if necessary its monochrome appearance, is improved.
  • this fire offers many and new possibilities to arrange filters and diopters.
  • the coloring member does not have significant differences in thickness on its wall, which was the case in document DE-42 28 928 and led to manufacturing difficulties.
  • the facets achieving the convergence of elementary beams have a focal length important so that the focal plane of the facets found downstream of the downstream face of the single blade. he it follows that the lines left colorless on the face downstream, between the red filters for the path of elementary green beams of the first set, have a large width. These colorless lines are therefore easily visible between the red filters when the fire is not in service. Therefore, red filters and colorless lines give the fire a imperfect red monochrome appearance.
  • the dividing member comprises a first set of elements adapted to make each converge elementary bundle of the first set and having foci arranged along a focal surface generally perpendicular to an axis of fire, the coloring organ having a blade generally extending perpendicular to the axis and in the vicinity of the surface Focal.
  • the elementary beams of the first together each have a reduced width at the level of the coloring organ. Therefore, the parts of the coloring member located in the path of these beams can occupy a very small area. This organ therefore produces an improved monochrome appearance when the fire is not in service.
  • the coloring member is located on the focal surface.
  • the set of filters coloring includes portions colored in the mass.
  • the portions colored in the mass have an upstream facet and a downstream facet, the upstream facet having an area greater than the area of the downstream facet.
  • the fire includes a base, the coloring member being fixed to one end of the base and closing the interior of the fire.
  • the coloring member acts as ice cream.
  • the body of coloring includes first coloring filters made of a first material having a first color, for example red. These filters are conformed to straight bands parallel to each other, occupying all the thickness of the organ.
  • the coloring member comprises also second coloring filters constituted in a second material having a second color, for green example, also in the form of bands. The first and second bands are alternated between them.
  • the upstream face of the organ oriented towards the source is formed by convex cylindrical facets profiles, associated respectively with filters for divide the incident beam emitted by the source into different elementary beams each passing through a coloring filter. Downstream of the screen, the summary additive colored elementary beams respectively in red and in green produces a beam White.
  • green filters have a downstream side narrow compared to the wide downstream face of red filters, so the extinguished fire looks overall red monochrome.
  • the organ with coloring of a peripheral frame formed in the red material and extending in continuity of material with the red filters. So, to make such organ by means of two colored plastics in red and green respectively, the red part of the organ, red filters and frame, at by means of a single injection by a single nozzle injection opening into the mold cavity and associated with this material.
  • it is then necessary to inject individually each of the green bands between the red stripes it is then necessary to inject individually each of the green bands between the red stripes.
  • a fire in which the coloring member has a generally planar shape, the filters of the first set being made up of a first material having a first color, and the filters of the second set being made up of a second material having a second different color of the first color, the filters of the first set being alternated with the filters of the second set in a direction generally parallel to a plane of the coloring member, the coloring member comprising a first junction part in continuity of material with the filters of the first set and common to them, the coloring member comprising a second part of junction in continuity of material with the filters of the second set and common to these.
  • the second junction part ensures a continuity of material of the filters of the second set between them. Therefore, the filters of the second set can be made with a single injection per a common single injection nozzle for all of these filters. So we simplify the mold structure for manufacturing the coloring member.
  • the second junction part includes a layer extending parallel to the member staining in excess of the filters of the first set.
  • this layer provides a mechanical reinforcement of the coloring member, which increases its solidity.
  • the layer defines a face free from the coloring organ.
  • the manufacture of the coloring member with the layer is particularly simple.
  • the organ when the organ is part of a traffic light, the organ can be arranged with the layer on the face upstream of the organ, so that it is barely visible from the outside and does not alter the appearance of the fire when it is off.
  • the layer has a thickness significantly less than one dimension of filters of the first set following a direction generally perpendicular to the plane of the organ of coloring.
  • the colored layer changes very moderately the transmission coefficient of the filters of the first together.
  • the color dot resulting from the successive crossing of the colored layer and filters of the first set by the associated light rays is very close to the color point associated with only filters of the first set. Additive synthesis for production of the regulatory beam of fire is therefore practically unchanged.
  • a mold is also provided.
  • injection for the manufacture of a coloring member optics according to the invention comprising a cavity injection into which only two nozzles open injection, these nozzles being adapted to allow injection into the cavity of two respective materials having different colors.
  • a signaling light which is a reversing light intended for a motor vehicle. It could be alternately a brake indicator light, a brake indicator light change of direction, or rear light of fog.
  • the light comprises a base 2 having a rear portion in general paraboloid shape, the front internal 4 of this portion being reflective so that it constitutes a mirror.
  • This portion defines an axis 5 of the base and the fire.
  • the base has a front portion tubular 6.
  • the fire has a light source 8 constituted by a bulb adapted to emit a beam luminous, extending opposite the mirror 4 and located at a mirror focus.
  • Figure 1 is a sectional view of the light horizontal while Figure 2 is a sectional view vertical.
  • the mirror 4 has streaks 10 with convex curved cross section, inscribed in vertical planes parallel to each other.
  • the paraboloid shape of the mirror 4 reflects the component vertical of each light ray emitted by the source 8 in a direction parallel to axis 5.
  • the streaks 10 of the mirror 4 scatter in the horizontal direction the horizontal components of the rays emitted by the source 8. Consequently, the reflected light rays by the mirror 4 are inscribed in plans essentially horizontal parallel to axis 5.
  • the propagation of the reflected beam towards the front of the light will define the downstream directions and upstream.
  • the fire has a first flat blade transparent colorless 12, glass or other material plastic, extending downstream of the mirror 4 and the source 8 perpendicular to the axis 5.
  • This blade 12 has a flat downstream face 16 and an upstream face 14.
  • This face upstream has profiled facets 18, 20 in section convex arcuate arc, or gadroons, extending in relief from the upstream face.
  • profiled facets are all identical, mutually parallel and adjacent to each other.
  • Profiled facets extend in the horizontal direction.
  • Profiled facets are referenced alternately 18, 20, the facets profiles 18 constituting a first assembly and the profiled facets 20 constituting a second set.
  • Each profiled facet 18, 20 constitutes for the vertical components of the light rays which strike a converging lens having a focal point F located downstream of the downstream face 16 of the blade 12.
  • the foci F are therefore in this case arranged in a focal plane P perpendicular to axis 5, located downstream of the downstream face 16 of the blade.
  • the incident beam striking the upstream face 14 of the blade includes the light rays coming from the mirror 4.
  • the incident beam therefore comprises a first set of elementary beams 21 striking the profiled facets 18 of the first set, and a second set of elementary beams 23 striking the profiled facets 20 of the second set.
  • the vertical component is parallel to axis 5.
  • the profiled facet 18, 20 transforms this elementary beam 21, 23 with components vertical parallel to each other in a beam elementary in which the vertical components of rays converge at focus F. Downstream of each focus F, the elementary beam 21, 23 becomes divergent, then even further downstream and not shown on the Figure 3, the elementary beams 21, 23 of the two sets are added together according to a process of additive synthesis to constitute a homogeneous beam unique.
  • the blade 12 constitutes a dividing member suitable for dividing the beam reflected by the mirror 4 into a first set of elementary beams 21 and a second set of elementary beams 23 configured so the first and second sets of elementary beams add up to each other.
  • the profiled facets 18 constitute a first set elements adapted to make each beam converge elementary 21 of the first set, and the facets profiles 20 constitute a second set of elements adapted to converge each elementary beam 23 of the second set.
  • the light also has a second flat blade transparent 22 or coloring screen, glass or plastic, extending perpendicular to the axis 5 of the beam, parallel to the first blade 12, in downstream and away from the first blade, and having upstream 24 and downstream 26 flat faces.
  • This second blade 22 extends in the focal plane P of the first plate 12, the focal plane P being located midway between the upstream faces 24 and downstream 26 of the second blade.
  • the second blade 22 includes portions colored in the mass which constitute wide bands 28 and narrow bands 30 parallel to each other, alternating along the plane of the blade and contiguous.
  • the bands 28, 30 extend horizontally and parallel to the profiled facets 18, 20 of the first blade 12, in look of these.
  • the bands 28, 30 are colored from the upstream face 24 of the blade to its downstream face 26.
  • the colored bands 28, 30 have a upstream facet external to the blade and a downstream facet external to the blade.
  • the junction between the strips adjacent is formed by side interfaces internal horizontal planes, perpendicular to upstream and downstream facets, and parallel to axis 5.
  • the narrow bands 28 are colored green and the wide bands 30 in red as shown in Figure 4 on which the colors according to the conventional representation recommended by the Office of United States Patents.
  • the second blade 22 is arranged so that the focal points F are in the center green and red bands.
  • the narrow green stripes 28 are arranged opposite the profiled facets 18 of the first set.
  • the narrow green bands 28 are therefore crossed by the elementary beams 21 of the first together they color green.
  • Wide bands reds 30 are arranged opposite the profiled facets 20 of the second set, and are crossed by the elementary bundles 23 of the second set they color red. Due to the convergence of elementary beams 21, 23, only a central region wide red bands 30 is crossed by elementary bundles 23 of the second set.
  • the narrow bands green 28 and wide red 30 thus constitute coloring filters.
  • the narrow green bands 28 define a first set of filters associated with the first set of beams elementary 21, and wide red bands 30 define a second set of filters associated with second set of elementary beams 23.
  • the second blade 22 constitutes a coloring member comprising a first set of coloring filters 28 arranged in the path of the elementary beams 21 of the first set, and a second set of filters coloring 30 arranged in the path of the beams elementary 23 of the second set.
  • the organ of coloring 22 is distinct from the dividing member 12 and extends away from it.
  • the addition of the elementary green beams 21 and red 23 by additive synthesis downstream of the second blade 22 provides a white beam.
  • the elementary beams 21 of the first set converge in the vicinity of the corresponding F focal points, the source 8 is not strictly punctual.
  • the location of foci F in the center of the narrow bands green 28 allows to give these bands a width, to know a dimension along the plane of the blade and perpendicular to axis 5, very narrow. It follows that the narrow green bands 28 are barely visible for an outside observer when the fire is not in service. The red monochrome appearance imparted to the fire by wide red bands 30 is therefore of good quality.
  • the profiled facets 18, 20 are identical, in particular of the same dimensions, so that the amount of light passing through the profiled facets 18 is identical to the amount of light passing through profiled facets 20.
  • the second blade 22 is fixed to the end of the front portion 6 of the base 2 with the interposition of a seal not shown. This blade closes thus the interior of the fire. It therefore acts as fire exit glass.
  • Figure 5 shows a first variant of realization of the fire. Elements that differ from what just described bear references increased by hundred. This variant differs from the above only by the shape of the narrow green bands 128 and large red 130.
  • the junction between the adjacent strips 128, 130 is formed by flat internal side interfaces inclined by relative to the upstream and downstream faces 24, 26, and relative to axis 5.
  • the narrow green bands 128 have in cross section a tapering conical shape towards the downstream face 24.
  • the upstream facet of these strips has an area larger than the area of their downstream facet.
  • the second blade 22 is located still at the focal plane P of the first blade 12, but this plane P passes through the downstream face 26 of the second blade 22 and therefore by the downstream facets of the bands 128, 130.
  • each narrow green band 128 corresponds to the beam path location elementary 21 where this beam is the narrowest.
  • this downstream facet a width particularly reduced, in order to further improve the red monochrome aspect of the fire. If necessary, is not harmful that this variant leads to back to give a relatively large width to the upstream facet of the narrow green bands 128 since these upstream facets are hardly visible from the outside fire.
  • Figure 6 shows a second variant of realization of the fire of figures 1 and 2.
  • This variant is distinguished only by the forms profiled facets or gadroons.
  • the elements 218 of the first set associated with the first set of elementary beams 221 are still formed by contoured convex facets in relief.
  • elements 220 of the second set associated with second set of elementary beams 223 are formed by profiled facets with curved section in circular arc, hollow concaves, with the same curvature and same width as the facets 218 profiled in relief.
  • These hollow profiled facets 220 constitute in the vertical planes of diverging lenses. The same amount of light passes through the facets 218 and facets 220.
  • each contoured facet in relief 218 transforms the associated elementary beam 221 into a elementary beam in which the components vertical rays converge at focal point F.
  • each facet 220 hollow profile transforms the beam elementary 223 associated in an elementary bundle in which the vertical components of the rays diverge.
  • the narrow green bands 28 and large reds 30 color the beams elementaries 221, 223 of the first and second sets of beams. Downstream of each focal point F, the beams elementary 221 of the first set become divergent and then further downstream the beams elementaries 221, 223 of the two sets add up between them to form a single homogeneous beam White. Due to the divergence of the beams elementary 223 of the second set, the largest part of each wide red strip 30 is crossed by the associated beam 223. Hollow facets 220 can be configured to optimize the area of wide red bands 30 crossed by the beams 223.
  • the upstream face 14 of the blade 12 may have slope breaks at the junction between profiled facets 218 and 220 depending on their radii of curvature and their dimensions.
  • Figures 7 and 8 show a third alternative embodiment of the light of Figures 1 and 2.
  • the different elements carry references increased by three hundred.
  • the mirror 304 is smooth and devoid of streaks.
  • This mirror reflects the beam divergent emitted by source 8 into a ray beam parallel to the axis 5.
  • the first blade 12 is identical to that of FIG. 1.
  • the upstream face 24 of the second blade 22 has profiled facets in relief or gadroons 330, similar to those of the first blade. These facets 330 are parallel to each other and oriented along a common vertical direction perpendicular to the horizontal common direction of the profiled facets 18, 20 of the first blade 12.
  • the process of dividing the beam, coloring of the elementary beams and additive synthesis takes place in an identical way to what above.
  • the profiled facets 330 of the second blade 22 ensure dispersion in the direction horizontal of the beam transmitted by the first plate 12.
  • the coloring member 22 includes means for scattering of light rays transmitted by the organ divider 12.
  • Figure 9 shows a fourth variant of realization of the fire of figures 1 and 2.
  • the base 2 is devoid of mirror, its rear portion 404 being non-reflective.
  • the second blade 22 is identical to that of FIG. 1.
  • the profiled facets in relief 418, 420 of the first blade 12 are this time arranged on the downstream face 16 of this blade.
  • the upstream face 14 of the first blade 12 presents Fresnel 433 patterns, known in themselves, so that this upstream face transforms the beam divergent emitted by source 8 into a ray beam parallel to the axis 5.
  • the downstream face 16 of the first blade 12 divides the beam into two sets of converging elementary beams. The coloring of elementary bundles and their addition takes place like before.
  • Figures 10 and 11 show a fifth alternative embodiment of the light of Figures 1 and 2.
  • the different elements carry references increased by five hundred.
  • the mirror of the base is smooth.
  • the mirror reflects the divergent beam emitted by the source in a beam with rays parallel to axis 5.
  • the facets 518, 520 of the upstream face 14 of the first blade 12 defining the elements of the first and second sets are generally spherical, here toric by presenting different radii of curvature according to horizontal and vertical directions for make a wider beam in the direction horizontal than vertical.
  • the facets 518, 520 are in relief.
  • the facets 518 and 520 are arranged in several rows and several columns following two nested square matrices.
  • the facets 518 have in elevation a rectangular shape, here square.
  • the facets 518 of the first set are distant from each other others.
  • the facets 520 of the second set are joined by their edges.
  • Each facet 518 is adjacent by its four sides with four facets 520, and reciprocally.
  • the sides of the facets and their alignment directions extend along directions horizontal and vertical.
  • Each facet 518, 520 constitutes a convex converging lens which transforms an elementary beam with rays parallel to the axis from the mirror into an elementary ray beam converge at a focal point of the lens.
  • the facets 518 of the first set and those 520 of the second set here have suitable dimensions so that the same quantity of light passes through the green and red filters.
  • the colored portions or filters 528, 530 of the second slide 22 this time have a rectangular shape, here square, in elevation.
  • the first and second sets of filters are arranged in two nested square matrices one inside the other.
  • the 530 filters of the second set are large and meet at their edges, whereas the filters 528 of the first set are of small in size and distant from each other. So the green filters extend over a red background.
  • the sides of filters and the alignment directions are vertical and horizontal.
  • the homes of spherical facets 518 from first set is in the center of the green filters 528 of the first set. So we can give these green filters 528 a very small area.
  • division, coloring and addition of elementary beams are carried out simultaneously according to the vertical and horizontal directions.
  • the dimensions facets 518, 520 and coloring filters 528, 530 are chosen to provide the proportion of flows bright green and red necessary to obtain the White color.
  • the screen or coloring organ 22 further includes a rectangular frame 640 flat extending around the periphery of the wide red bands 30.
  • the frame 640 has two long horizontal sides, parallel to the wide red bands 30, and two sides short vertical perpendicular to wide bands red.
  • the wide red bands 30 have their ends terminals adjoining the short vertical sides of the frame.
  • the wide red bands 30 and the frame 640 are made of a first plastic material such as polymethyl methacrylate, colored red.
  • the framework 640 extends in continuity of material with the strips large red 30. In other words, it is in one piece or even in one piece with these bands.
  • the 640 frame forms a junction with the wide strips red 30.
  • the downstream face of the frame defines part of the downstream face 26 of the screen.
  • the bands 28, 30 have a length greater than or equal to 0.5 times the length of the coloring or screen 22.
  • the screen 22 also has a thin layer 642 of planar shape extending parallel to the plane general screen.
  • This thin layer 642 is contiguous with the upstream face of the frame 640, wide red bands 30 and narrow bands 28 and defines a free upstream face of screen 22, layer 642 being intended to be oriented towards light source 608.
  • the layer extends thicker than frame 640, with bands wide red 30 and narrow green stripes 28.
  • the thin layer 642 and the narrow green bands 28 are made of a second plastic material, by example a polymethyl methacrylate, colored green.
  • Thin layer 642 extends in continuity of material with the narrow green bands 28. In other words, it is in one piece or even in one piece with these bands.
  • c the uniform thickness of the thin layer 642
  • f the uniform thickness of the wide strips 30 and narrow 28
  • e the total thickness of the screen.
  • e c + f.
  • c the uniform thickness of the thin layer 642
  • f the uniform thickness of the wide strips 30 and narrow 28
  • e the total thickness of the screen.
  • the dots corresponding to the two colors of the layer 642 alone and wide red bands 30 alone are plotted on the graphical representation diagram colors in trichromatic coordinates of the figure 16.
  • This representation includes a domain D defining the region of white color.
  • the colour green corresponding to thin layer 642 alone is located in this domain D.
  • the thin layer therefore has a colorless appearance.
  • the elementary beams 623 of the first together pass through thin layer 642 and then the strips large red 30.
  • the transmission coefficient of screen 22, at the level of red bands 30 or green bands 28, is very little decreased by comparison with this same situation.
  • the thin layer 642 ensuring continuity of material of the thin green strips 28 between them, the screen 22 can be produced by injection using a mold 644 shown schematically in Figure 17, which has a mold cavity 646 into which open out only two injection nozzles 648, 649.
  • the first nozzle 648 is associated with an injection circuit of the first colored plastic in the first color, here red, to define the 640 frame and the wide strips 30.
  • the second nozzle 649 is associated with a second plastic injection circuit colored in the second color, here green, with a view to define thin layer 642 and narrow green stripes 28.
  • the presence of the thin layer 642 improves the mechanical resistance of the screen 22.
  • Figure 18 shows a seventh variant of realization of the fire.
  • This variant differs from the sixth variant only by the shape of the bands narrow green 128 and wide red 130.
  • the junction between adjacent strips 128, 130 east formed by flat internal side interfaces inclined relative to the upstream and downstream faces 24, 26, and relative to axis 5.
  • the narrow green bands 128 have a conical shape in cross section tapering towards the downstream face 24.
  • the upstream facet of these bands has an area greater than the area of their downstream facet.
  • This seventh variant with a layer 642 combines the characteristics of the first and sixth variants.
  • Figure 19 shows an eighth variant of realization of the fire of figures 1 and 2.
  • This variant differs from the sixth variant only by the shape of the profiled facets or godrons.
  • the elements 818 of the second set associated with the second set of elementary beams 821 are still formed by convex profiled facets in relief.
  • the 820 elements of the first set associated with the first set of elementary beams 823 consist of profiled facets with cross-section arc-shaped curve, hollow concaves, similarly curvature and the same width as the facets 818 raised profiles.
  • These hollow profiled facets 820 constitute in the vertical planes of the lenses divergent. The same amount of light passes through facets 818 and facets 820.
  • each contoured facet in relief 818 transforms the associated elementary beam 821 into a elementary beam in which the components vertical rays converge at focal point F.
  • each 820 hollow profile transforms the beam elementary 823 associated in an elementary bundle in which the vertical components of the rays diverge.
  • the narrow green bands 28 and large reds 30 color the beams elementaries 821, 823 of the second and first sets of beams. Downstream of each focal point F, the beams elementary 821 of the second set become divergent and then further downstream the beams elementary 821, 823 of the two sets add up between them to form a single homogeneous beam White. Due to the divergence of the beams elementary 823 of the first set, the largest part of each wide red strip 30 is crossed by the associated beam 823.
  • the hollow facets 820 can be configured to optimize the area of wide red bands 30 crossed by the beams 823.
  • the upstream face 14 of the blade 12 may have slope breaks at the junction between profiled facets 818 and 820 depending on their radii of curvature and their dimensions.
  • This eighth variant provided with a layer 642 combines the characteristics of the second and sixth variants.
  • the fire will conform to the third variant and in addition will include a layer thin continuous similar to that of the sixth variant, the gadroons extending over this thin layer.
  • the fire will conform to the fourth variant and in addition will include a layer thin continuous similar to that of the sixth variant.
  • the fire conforms to the fifth variant and in addition the screen has a frame and a thin layer similar to those of the sixth variant.
  • the frame extends in continuity of material with the red filters of the first set, and the layer thin extends in continuity of material with filters greens from the second set.
  • the dividing organ and the coloring organ distinct from each other provide a total of four faces, which multiplies the possibilities of arrangement of the dividing means and filters coloring on these faces, according to the desired functions.
  • the size of the filters coloring is independent of the dimension of the facets beam division with regard to constraints of arrangement of filters and facets.
  • the organ of coloring may be located not necessarily on the focal plane P, but downstream or upstream thereof, at a distance from the focal plane P less than the distance separating the divider 12 from the focal plane P, namely focal length.
  • the coloring 22 may include dispersing means of the beam, for example on its downstream face.
  • the dividing body may leave the elementary bundles of the second set, the organ of coloring comprising a second set of elements adapted to make each beam converge or diverge elementary of the second set.
  • the profiled facets associated with the first set of elements may have dimensions different from those associated with the second set elements.
  • the streaks of the mirror will be advantageously non-parallel to the profiled facets.
  • the divider can be configured so that the foci F are not coplanar and constitute a non-planar focal surface but generally perpendicular to axis 5.
  • the coloring organ will then advantageously extend in the vicinity of this area.
  • the fire may include a glass attached to a end of the base and shutter the fire downstream of the organ of coloring.
  • This ice may present means of beam scattering.
  • the fire according to the invention can be put in works in fields other than vehicles automobiles. It could for example be a fixed light.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (32)

  1. Signalleuchte, insbesondere für Kraftfahrzeuge, mit einer Lichtquelle (8), die ein Lichtbündel auszusenden vermag, einem Strahlteilerelement (12), das das Lichtbündel in einen ersten Satz Elementarlichtbündel (21; 221) und einen zweiten Satz Elementarlichtbündel (23; 223) zu teilen vermag, die derart gestaltet sind, dass sich der erste und der zweite Satz Elementarlichtbündel gegenseitig ergänzen, und einem Farbgebungselement (22), das von dem Strahlteilerelement (12) unabhängig ist und mit einem ersten Satz Farbfilter (28; 128; 528), die im Strahlengang der Elementarlichtbündel (23; 223) des ersten Satzes angeordnet sind, und einem zweiten Satz Farbfilter (30; 130; 530) versehen ist, die im Strahlengang der Elementarlichtbündel (23) des zweiten Satzes angeordnet sind,
    dadurch gekennzeichnet, dass das Farbgebungselement (22) sich mit Abstand von dem Strahlteilerelement (12) erstreckt.
  2. Leuchte nach Anspruch 1,
    dadurch gekennzeichnet, dass das Strahlteilerelement (12) einen ersten Satz Elemente (18; 218; 518) umfasst, die jedes Elementarlichtbündel (21; 221) des ersten Satzes zu konvergieren vermögen und Brennpunkte (F) aufweisen, die entlang einer allgemein senkrecht zur Achse (5) der Leuchte verlaufenden Brennebene (P) angeordnet sind, wobei das Farbgebungselement (22) eine Platte aufweist, die allgemein senkrecht zur Achse (5) und in der Nähe der Brennebene (P) verläuft.
  3. Leuchte nach Anspruch 2,
    dadurch gekennzeichnet, dass das Farbgebungselement (22) auf der Brennebene (P) angeordnet ist.
  4. Leuchte nach einem der Ansprüche 2 bis 3,
    dadurch gekennzeichnet, dass das Strahlteilerelement (12) einen zweiten Satz Elemente (20; 520) umfasst, die jedes Elementarlichtbündel (23) des zweiten Satzes zu konvergieren vermögen.
  5. Leuchte nach einem der Ansprüche 2 bis 3,
    dadurch gekennzeichnet, dass das Strahlteilerelement (12) einen zweiten Satz Elemente (220) umfasst, die jedes Elementarlichtbündel (223) des zweiten Satzes zu divergieren vermögen.
  6. Leuchte nach einem der Ansprüche 4 bis 5,
    dadurch gekennzeichnet, dass das Strahlteilerelement (12) eine Platte umfasst, die senkrecht zur Achse (5) der Leuchte verläuft, wobei die Elemente, die jedes Elementarlichtbündel des ersten Satzes zu konvergieren vermögen, und die jedem Elementarlichtbündel des zweiten Satzes zugeordneten Elemente Facetten (18, 20; 218, 220; 518, 520) auf einer Seite (14) der Platte aufweisen.
  7. Leuchte nach Anspruch 6,
    dadurch gekennzeichnet, dass die Facetten (18, 20; 218, 220) profiliert und zueinander parallel sind und einen gekrümmten Querschnitt haben.
  8. Leuchte nach Anspruch 7,
    dadurch gekennzeichnet, dass wenigstens einige der Facetten (18, 20; 218, 220; 818, 820) erhaben sind.
  9. Leuchte nach Anspruch 7 oder 8,
    dadurch gekennzeichnet, dass einige der Facetten (218, 220; 818, 820) vertieft sind.
  10. Leuchte nach einem der Ansprüche 7 bis 9,
    dadurch gekennzeichnet, dass die profilierten Facetten (18) des ersten Satzes und die profilierten Facetten (20) des zweiten Satzes alle identisch sind.
  11. Leuchte nach einem der Ansprüche 7 bis 10,
    dadurch gekennzeichnet, dass sie einen Reflektor (4) umfasst, der Rillen (10) aufweist, die in zueinander parallelen und zu den profilierten Facetten (18, 20; 218, 220) nicht parallelen Ebenen angeordnet sind.
  12. Leuchte nach einem der Ansprüche 7 bis 10,
    dadurch gekennzeichnet, dass das Farbgebungselement (22) Mittel (330) zur Streuung der durch das Strahlteilerelement (12) übertragenen Lichtstrahlen umfasst.
  13. Leuchte nach Anspruch 12,
    dadurch gekennzeichnet, dass das Farbgebungselement eine Platte (22) aufweist, die senkrecht zu einer Achse (5) der Leuchte verläuft, wobei die Lichtstreuungsmittel auf einer Seite (24) der Platte zueinander parallele profilierte Facetten (330) mit gekrümmtem Querschnitt aufweisen und quer zu den profilierten Facetten (18, 20) des Strahlteilerelements (12) verlaufen.
  14. Leuchte nach Anspruch 6,
    dadurch gekennzeichnet, dass die Facetten (518, 520) allgemein kugelförmig sind.
  15. Leuchte nach Anspruch 14,
    dadurch gekennzeichnet, dass die Filter (28) des zweiten Satzes voneinander beabstandet sind und entsprechend einer Matrix angeordnet sind, die mehrere Zeilen und mehrere Spalten aufweist.
  16. Leuchte nach einem der Ansprüche 2 bis 3,
    dadurch gekennzeichnet, dass das Farbgebungselement (22) einen zweiten Satz Elemente umfasst, die jedes Elementarlichtbündel (23) des zweiten Satzes zu konvergieren vermögen.
  17. Leuchte nach einem der Ansprüche 2 bis 3,
    dadurch gekennzeichnet, dass das Farbgebungselement (22) einen zweiten Satz Elemente umfasst, die jedes Elementarlichtbündel (23) des zweiten Satzes zu divergieren vermögen.
  18. Leuchte nach Anspruch 16 oder 17,
    dadurch gekennzeichnet, dass die Elemente des zweiten Satzes Facetten auf einer Seite (14) der Platte aufweisen.
  19. Leuchte nach einem der Ansprüche 1 bis 18,
    dadurch gekennzeichnet, dass wenigstens einer aus dem ersten und dem zweiten Satz Farbgebungsfilter (28, 30; 128, 130; 528, 530) in der Masse gefärbte Abschnitte aufweist.
  20. Leuchte nach Anspruch 19,
    dadurch gekennzeichnet, dass die in der Masse gefärbten Abschnitte (128, 130) eine vordere Facette und eine hintere Facette aufweisen, wobei die hintere Facette eine Oberfläche hat, die kleiner ist als eine Oberfläche der vorderen Facette.
  21. Leuchte nach einem der Ansprüche 1 bis 20,
    dadurch gekennzeichnet, dass das Strahlteilerelement (12) eine vordere Seite (14) umfasst, die Fresnelsche Muster (433) aufweist.
  22. Leuchte nach einem der Ansprüche 1 bis 21,
    dadurch gekennzeichnet, dass das Farbgebungselement (22) eine allgemein flache Form hat.
  23. Leuchte nach einem der Ansprüche 1 bis 22,
    dadurch gekennzeichnet, dass die Filter (30) des erstens Satzes aus einem ersten Werkstoff gebildet sind, der eine erste Farbe hat, und die Filter (28) des zweiten Satzes aus einem zweiten Werkstoff gebildet sind, der eine zweite Farbe hat, die sich von der ersten Farbe unterscheidet, wobei die Filter (30) des ersten Satzes abwechselnd mit den Filtern (28) des zweiten Satzes in einer Richtung angeordnet sind, die stellenweise parallel zu einer Ebene des Farbgebungselements ist, wobei das Farbgebungselement einen ersten, in Fortführung des Werkstoffes der Filter (30) des ersten Satzes gebildeten Übergangsbereich (40) aufweist, der diesen gemein ist, und wobei das Farbgebungselement einen zweiten, in Fortführung des Werkstoffes der Filter (28) des zweiten Satzes gebildeten Übergangsbereich (642) aufweist, der diesen gemein ist.
  24. Leuchte nach Anspruch 23,
    dadurch gekennzeichnet, dass der zweite Übergangsbereich (642) eine Schicht aufweist, die parallel zu dem Farbgebungselement in Verdickung bezüglich der Filter (30) des ersten Satzes verläuft.
  25. Leuchte nach Anspruch 24,
    dadurch gekennzeichnet, dass die Schicht (642) eine Fläche (24) ohne Farbgebungselement bildet.
  26. Leuchte nach Anspruch 25,
    dadurch gekennzeichnet, dass die Schicht (642) eine Fläche (24) ohne Farbgebungselement (22) bildet, die zur Lichtquelle (8) ausgerichtet ist.
  27. Leuchte nach einem der Ansprüche 24 bis 26,
    dadurch gekennzeichnet, dass die Schicht (642) eine Dicke (c) aufweist, die im Wesentlichen kleiner ist als ein Maß (f) der Filter (30) des ersten Satzes in einer zur Ebene des Farbgebungselements allgemein quer verlaufenden Richtung.
  28. Leuchte nach Anspruch 27,
    dadurch gekennzeichnet, dass die Dicke (c) der Schicht (642) kleiner oder gleich etwa dem 0,5-fachen des Maßes (f) der Filter (30) des ersten Satzes ist.
  29. Leuchte nach einem der Ansprüche 24 bis 28,
    dadurch gekennzeichnet, dass die Filter (30) des ersten Satzes in einer Farbe gefärbt sind, die als Farbwertanteil x = 0,666 und y = 0,330 hat, und dass die Schicht (642) in einer Farbe gefärbt ist, die als Farbwertanteil x = 0,435 und y = 0,413 hat.
  30. Leuchte nach einem der Ansprüche 23 bis 29,
    dadurch gekennzeichnet, dass die Filter (30) des ersten Satzes aus geraden Streifen gebildet sind, die jeweils eine Länge von mehr als dem 0,5-fachen eines Maßes des Farbgebungselements (22) parallel zu diesen Streifen haben.
  31. Leuchte nach einem der Ansprüche 23 bis 31,
    dadurch gekennzeichnet, dass der erste und der zweite Werkstoff Kunststoffe sind.
  32. Leuchte nach einem der Ansprüche 1 bis 30,
    dadurch gekennzeichnet, dass sie einen Sockel (2) umfasst, wobei das Farbgebungselement (22) an einem Ende des Sockels befestigt ist und das Leuchteninnere verschließt.
EP97402047A 1996-09-05 1997-09-03 Signalleuchte mit additiver Farbmischung Expired - Lifetime EP0828112B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9610835 1996-09-05
FR9610835A FR2752914B1 (fr) 1996-09-05 1996-09-05 Feu de signalisation a synthese additive
FR9700773A FR2758874B1 (fr) 1997-01-24 1997-01-24 Ecran de coloration optique notamment pour feu de signalisation de vehicule automobile
FR9700773 1997-01-24

Publications (2)

Publication Number Publication Date
EP0828112A1 EP0828112A1 (de) 1998-03-11
EP0828112B1 true EP0828112B1 (de) 2003-05-14

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ES (1) ES2199333T3 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2763385B1 (fr) * 1997-05-15 1999-08-06 Valeo Vision Feu de signalisation pour vehicule automobile a synthese additive
US9464784B2 (en) * 2012-02-03 2016-10-11 GE Lighting Solutions, LLC Optical system and lighting device comprised thereof
CZ2016176A3 (cs) 2016-03-23 2017-10-04 Varroc Lighting Systems, s.r.o. Světelné zařízení, zejména signální svítilna pro motorová vozidla

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1128924B (it) * 1980-07-10 1986-06-04 Iao Industrie Riunite Spa Gruppo ottico per autoveicoli
FR2585448B1 (fr) * 1985-07-24 1989-06-02 Cibie Projecteurs Feux, multifonction de teinte ou d'aspect uniforme a l'etat eteint, notamment destines aux vehicules automobiles
DE4228928C1 (de) * 1992-08-31 1993-12-16 Swf Auto Electric Gmbh Signalleuchte

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DE69721918T2 (de) 2004-05-13
EP0828112A1 (de) 1998-03-11
ES2199333T3 (es) 2004-02-16
DE69721918D1 (de) 2003-06-18

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