EP1726001A1 - Headlight lens for a motor vehicle headlight - Google Patents
Headlight lens for a motor vehicle headlightInfo
- Publication number
- EP1726001A1 EP1726001A1 EP05707605A EP05707605A EP1726001A1 EP 1726001 A1 EP1726001 A1 EP 1726001A1 EP 05707605 A EP05707605 A EP 05707605A EP 05707605 A EP05707605 A EP 05707605A EP 1726001 A1 EP1726001 A1 EP 1726001A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- headlight
- light source
- lens
- headlight lens
- emblem
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 239000012780 transparent material Substances 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 235000015250 liver sausages Nutrition 0.000 claims 1
- XYSQXZCMOLNHOI-UHFFFAOYSA-N s-[2-[[4-(acetylsulfamoyl)phenyl]carbamoyl]phenyl] 5-pyridin-1-ium-1-ylpentanethioate;bromide Chemical compound [Br-].C1=CC(S(=O)(=O)NC(=O)C)=CC=C1NC(=O)C1=CC=CC=C1SC(=O)CCCC[N+]1=CC=CC=C1 XYSQXZCMOLNHOI-UHFFFAOYSA-N 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 15
- 241000255749 Coccinellidae Species 0.000 description 7
- 230000012447 hatching Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 2
- 241000254173 Coleoptera Species 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/275—Lens surfaces, e.g. coatings or surface structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/255—Lenses with a front view of circular or truncated circular outline
Definitions
- the invention relates to a headlight lens for a vehicle headlight, in particular for a motor vehicle headlight, and a vehicle headlight.
- Such a headlight lens is e.g. Known from WO 02/31543 A1, which discloses a headlight lens of a vehicle for installation in front of a light source in a headlight housing, the lens comprising outer sides which delimit a solid body made of a transparent material, the solid body including means for refraction of light which are inside the solid body at a certain distance from the outside.
- a aforementioned headlight lens is also known from WO 03/074251 A1, DE 3602262 C2 and DE 10052653 A1, DE 3602 262 C2 being a headlight lens with a surface which is convexly curved on at least one side and means for correcting chromatic deviations of a light beam discloses, the means for correcting chromatic deviations being formed by the at least one convexly curved surface which is aspherical and is subdivided into a plurality of aspherically designed partial surfaces with different shapes or curvatures.
- DE 299 12 504 U1 discloses a vehicle headlight with a cup-shaped reflector, with a light source assigned to the reflector, with a lens arranged in a beam path of the reflector, which has a flat surface facing the reflector and a facing convex surface, and with one of the convex surfaces Surface of the lens adjacent cover panel, wherein the lens is provided only in a central region of its flat surface with a surface structure generated by sandblasting, which reflects light rays from the sun entering the headlight and the lens and diffusely scatters.
- vehicle headlights are e.g. known from DE 19933 766 A1, DE 101 18687 A1 and DE 19829 586 A1.
- vehicle headlights should fulfill a function of origin or customer-specific design specifications so that the brand or type of vehicle can be recognized when the vehicle headlights are viewed.
- a headlamp lens for a vehicle headlamp with a light source in particular for a motor vehicle headlamp
- the headlamp lens comprising a lens body made of a transparent material which comprises a light source, e.g. essentially plane, surface and one facing away from the light source, e.g. essentially convex, surface
- the headlight lens on the surface facing the light source has an emblem with a base that is inclined to the surface facing the light source or to an optical axis of the headlight lens such that along the surface facing away from the light source the optical axis of the headlight lens penetrating light into the lens body is subject to total reflection.
- An emblem in the sense of the invention can e.g. a lettering, a geometric figure, an arrangement of geometric figures or another symbol.
- a base area in the sense of the invention has in particular a constant inclination.
- the inclination of the base area can also vary slightly if necessary within the limits set by the claims.
- the inclinations of the base surface differ by 5 ° or 10 ° at opposite ends of the base surface.
- a base area in the sense of the invention has in particular an extent of at least 10 mm 2 .
- a base area in the sense of the invention is in particular a macro structure, not a micro structure.
- the base area is offset between 0.2 mm and 6 mm (in the direction of the optical axis) with respect to the area to be turned towards the light source.
- the emblem protrudes into the lens body or in relief-like manner beyond part of the surface facing the light source or the surface facing away from the light source.
- the emblem is arranged in a recess in the lens body and in this case protrudes in particular in a relief-like manner over a bottom surface of the recess.
- a projection of the base area on the surface to be turned towards the light source covers less than 30% of the surface to be turned towards the light source or a projection of the base surface onto the surface to be turned away from the light source covers less than 30% of the surface to be turned away from the light source.
- the surface facing the light source and / or the surface facing away from the light source and / or surfaces of emblems or depressions has a region with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m.
- the area with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular with a light transmission on the surface of at least 90%, can have the emblem on the surface facing the light source and / or on the surface facing away from the light source , especially in a ring shape.
- the surface to be turned towards the light source has a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular with a light transmission on the surface of at least 90%, if the emblem is on the surface Light source facing surface is arranged.
- a light transmission on the surface of at least 90% with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, can be achieved in that the headlight lens is attached to the corresponding areas, e.g. is blasted by sandblasting, grinding or spark erosion, roughened form.
- a headlight lens for a vehicle headlight with a light source in particular for a motor vehicle headlight
- the headlight lens comprising a lens body made of a transparent material which is one of the.
- Light source e.g. essentially plane, surface and one facing away from the light source, e.g.
- the headlight lens on the surface to be turned towards the light source has an emblem with a base surface that is at an angle between 25 ° and 80 °, in particular between 35 ° and 60 °, relative to the surface towards the light source is inclined relative to an optical axis of the headlight lens by an angle between 10 ° and 65 °, in particular between 30 ° and 55 °.
- a headlight lens for a vehicle headlight with a light source in particular for a motor vehicle headlight
- the headlight lens comprising a lens body made of a transparent material which, for example, is essentially planar, facing the light source , Area and one of the Light source facing, for example substantially convex, surface, and wherein the headlamp lens on the surface facing the light source or the surface facing away from the light source has an emblem with a base surface, which compared to the surface facing the light source or the surface facing away from the light source between 0, 2mm and 6mm (in the direction of the optical axis) is offset.
- a headlight lens for a vehicle headlight with a light source in particular for a motor vehicle headlight
- the headlight lens comprising a lens body made of a transparent material, which comprises a substantially flat surface and a substantially convex surface, and wherein the headlight lens has on the substantially flat surface an emblem with a base which is inclined with respect to the substantially flat surface or with respect to an optical axis of the headlight lens in such a way that light enters the lens body through the substantially convex surface along the optical axis of the headlight lens the base area is subject to total reflection.
- An emblem in the sense of the invention can e.g. a lettering, a geometric figure, an arrangement of geometric figures or another symbol.
- the base area is offset from the essentially flat area between 0.2 mm and 6 mm (in the direction of the optical axis).
- the emblem protrudes into the lens body or in relief-like manner beyond part of the essentially planar surface or the essentially convex surface.
- the emblem is arranged in a depression in the lens body and in this case protrudes in particular in a relief-like manner beyond a bottom surface of the depression.
- a projection of the base area onto the essentially flat surface covers less than 30% of the essentially flat surface or a projection of the base area onto the essentially convex surface covers less than 30% of the essentially convex surface.
- the substantially flat surface and / or the substantially convex surface and / or surfaces of emblems or depressions has a region with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular in the case of a Light transmission on the surface of at least 90%.
- the area with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m can enclose the emblem, in particular in a ring, on the essentially flat surface and / or on the essentially convex surface.
- the substantially flat surface has a roughness of at least 0.05 ⁇ m, at least to a substantial extent, in particular at least 0.08 ⁇ m, in particular with a light transmission on the surface of at least 90%, if the emblem is arranged on the essentially convex surface.
- a headlight lens for a vehicle headlight with a light source in particular for a motor vehicle headlight
- the headlight lens comprising a lens body made of a transparent material which has an essentially flat surface and an essentially comprises convex surface, and wherein the headlight lens on the substantially flat surface has an emblem with a base surface, which is at an angle between 25 ° and 80 °, in particular between 35 ° and 60 °, or with respect to an optical surface Axis of the headlight lens is inclined at an angle between 10 ° and 65 °, in particular between 30 ° and 55 °.
- a headlight lens for a vehicle headlight with a light source in particular for a motor vehicle headlight
- the headlight lens comprising a lens body made of a transparent material which has an essentially flat surface and an essentially comprises convex surface, and wherein the headlight lens on the substantially flat surface or substantially convex surface has an emblem with a base area which is between 0.2 mm and 6 mm (in the direction of the optical axis) with respect to the substantially flat surface or substantially convex surface ) is offset.
- the aforementioned inclined base surfaces advantageously have a roughness of less than 0.08 ⁇ m, in particular less than 0.05 ⁇ m.
- bottom areas of depressions of the essentially planar area or of the area facing the light source which cannot be assigned to the base area, have an area with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular with a light transmission on the surface of at least 90%.
- Roughness in the sense of the invention should in particular be defined as R a , in particular according to ISO 4287.
- a motor vehicle in the sense of the invention is in particular a land vehicle that can be used individually in road traffic.
- Motor vehicles in the sense of the invention are in particular not limited to land vehicles with an internal combustion engine.
- FIG. 2 shows a schematic illustration of a vehicle headlight
- FIG. 3 shows an exemplary embodiment of a headlight lens for a vehicle headlight
- FIG. 4 shows the headlight lens according to FIG. 3 in a rear view
- FIGS. 3 and 4 show a cross section of the headlight lens according to FIGS. 3 and 4,
- FIGS. 3 and 4 show a further cross section of the headlight lens according to FIGS. 3 and 4,
- FIGS. 3 and 4 show a further cross section of the headlight lens according to FIGS. 3 and 4,
- FIGS. 3 and 4 show a further cross section of the headlight lens according to FIGS. 3 and 4,
- FIG. 9 shows a further exemplary embodiment of a headlight lens for a vehicle headlight
- FIG. 11 shows a cross section of the headlight lens according to FIGS. 9 and 10,
- FIGS. 9 and 10 show a further cross section of the headlight lens according to FIGS. 9 and 10,
- FIG. 13 shows a further exemplary embodiment of a headlight lens for a vehicle headlight
- FIG. 14 shows a further exemplary embodiment of a headlight lens for a vehicle headlight
- FIG. 15 shows a further exemplary embodiment of a headlight lens for a vehicle headlight
- FIG. 17 shows a further exemplary embodiment of a headlight lens for a vehicle headlight
- FIGS. 17 and 18 show a cross section of the headlight lens according to FIGS. 17 and 18,
- FIG. 20 shows a further exemplary embodiment of a headlight lens for a vehicle headlight
- FIG. 21 shows a cross section of the headlight lens according to FIG. 20.
- the vehicle headlight 1 shows a motor vehicle 100 with a vehicle headlight 1 schematically shown in FIG. 2 with a light source 10 for generating light, a reflector 12 for reflecting light which can be generated by the light source 10 and a diaphragm 14.
- the vehicle headlight 1 also comprises a headlight lens 2, 2A, 2B, 2C for changing the beam direction of light which can be generated by means of the light source 10, the headlight lens 2, 2A, 2B, 2C comprising a lens body 3 made of a transparent material which has an essentially planar surface 5 facing the light source 10 and a substantially convex surface 4 facing away from the light source 10.
- the headlight lens 2, 2A, 2B, 2C also includes an (optional) edge 6 by means of which the headlight lens 2, 2A, 2B, 2C can be fastened in the vehicle headlight 1.
- FIG. 3 shows the headlight lens 2, 2A, 2B, 2C in an exemplary embodiment in a plan view in the direction of the arrow 16 shown in FIG. 2
- FIG. 4 shows the headlight lens 2, 2A, 2B, 2C in a plan view in the direction of the Fig. 2 shown arrow 15.
- an emblem 20, 20A, 20B, 20C is arranged in an exemplary embodiment as a lettering.
- FIG. 5 shows a cross section of the headlight lens 2 along the section line AA according to FIG. 4.
- the emblem 20 projects in relief over the essentially flat surface 5 facing the light source 10 with a height H of between 0.2 mm and 6 mm , 2mm in the present exemplary embodiment. That a base surface 25 of the emblem 20 is offset from the substantially planar surface 5 facing the light source 10 between 0.2 mm and 6 mm (in the direction of an optical axis of the headlight lens 2, not shown), 2 mm in the present exemplary embodiment.
- FIG. 6 shows a cross section of the headlight lens 2A along the section line A-A according to FIG. 4.
- the emblem 20A is arranged in a recess 21A in the lens body 3 and in this case protrudes in particular in a relief-like manner above a bottom surface 22A of the recess 21A.
- the depression 21 A has a depth T between 0.2 mm and 6 mm, in the present exemplary embodiment 4 mm.
- the emblem 20A is between 0.2 mm and 6 mm, in the present exemplary embodiment 2 mm, high, so that a base area 25 A of the emblem 20 A lies below the essentially flat surface 5 facing the light source 10.
- FIG. 7 shows a cross section of the headlight lens 2B along the section line AA according to FIG. 4.
- the emblem 20B is arranged in a depression 21B in the lens body 3 and in this case projects in particular in a relief-like manner over a bottom surface 22B of the depression 21B ,
- the depression 21 B is between 0.2 mm and 6 mm, in the present exemplary embodiment 2 mm, deep.
- the emblem 20B is between 0.2 mm and 6 mm, in the present exemplary embodiment 2 mm, high, so that a base area 25B of the emblem 20B ends with the essentially flat surface 5 facing the light source 10.
- FIG. 8 shows a cross section of the headlight lens 2C along the section line AA according to FIG. 4, the emblem 20C projecting deeply into the lens body 3 between 0.2 mm and 6 mm, in the present exemplary embodiment 2 mm, so that a base area 25C of the emblem 20C is offset from the substantially planar surface 5 facing the light source 10 by between 0.2 mm and 6 mm (in the direction of an optical axis (not shown) of the headlight lens 2C), in the present exemplary embodiment 2 mm.
- the base surfaces 25, 25A, 25B, 25C and / or the base surfaces 22A, 22B have an area with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m.
- FIG. 9 shows a particularly advantageous exemplary embodiment of a headlight lens 30, 30A for use in the vehicle headlight 1 as an alternative to that Headlight lenses 2, 2A, 2B, 2C in a plan view in a direction corresponding to the direction of arrow 16 shown in FIG. 2 and FIG. 10 headlight lenses 30, 30A in a plan view in a direction corresponding to arrow 15 shown in FIG. 2 Direction, wherein - as in relation to the other figures - the same reference numerals designate the same or similar elements.
- an emblem 31, 31 A is arranged as a lettering on the essentially flat surface 5 of the headlight lens 30, 30A facing the light source 10.
- FIG. 11 shows a cross section of the headlight lens 30 along the section line B-B according to FIG. 10.
- the emblem 31 is arranged in a recess 32 in the lens body 3 and in this case protrudes in particular in a relief-like manner beyond a bottom surface 33 of the recess 32.
- the depression 32 is between 0.2 mm and 6 mm, in the present exemplary embodiment 5 mm, deep.
- the emblem 31 has a base area 35 which is inclined with respect to the essentially planar surface 5 facing the light source 10 or with respect to an optical axis 38 of the headlight lens 30 such that the convex surface 4 facing away from the light source 10 along the optical axis 38 of the headlight lens 30 in the lens body 3 penetrating light on the base 35 is subject to total reflection.
- the base surface 35 is inclined by an angle ⁇ of 42.5 ° relative to the substantially planar surface 5 facing the light source 10 and by an angle ⁇ of 47.5 ° relative to the optical axis 38 of the headlight lens 30 is.
- the exemplary embodiment of the headlight lens 30 has a shoulder 39 between the base surface 35 and the base surface 33, which can also be omitted, so that the base surface 35 and the base surface 33 touch at certain points.
- the bottom surfaces 33 have an area with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m.
- FIG. 12 shows a cross section of the headlight lens 30A along the section line BB according to FIG. 10.
- the emblem 31A projects into the lens body 3, but advantageously at no point more than 6 mm.
- the emblem 31A has a base area 35A which is inclined with respect to the essentially flat surface 5 facing the light source 10 or with respect to an optical axis 38A of the headlight lens 30A such that the convex surface 4 facing away from the light source 10 along the optical surface Axis 38A of the headlight lens 30A, light penetrating into the lens body 3 on the base 35A is subject to total reflection.
- the base surface 35A is inclined by an angle ⁇ of 42 ° with respect to the essentially flat surface 5 facing the light source 10 and with an angle ⁇ of 48 ° with respect to the optical axis 38A of the headlight lens 30A.
- the exemplary embodiment of the headlight lens 30A has a shoulder 39A between the base surface 35A and the essentially flat surface 5 facing the light source 10, which can also be omitted, so that the base surface 35 and the essentially flat surface facing the light source 10 5 touch at certain points.
- the emblems 31 and 31A have a silvery coloration - symbolized by the thick hatching - and are thus clearly visible when viewed from above.
- the emblems 31 and 31 A are transparent except for their edges, so that only a negligible change due to the emblems 31 and 31 A of the beam path of light generated by the light source 10 occurs.
- FIG. 13 shows an advantageous exemplary embodiment of a headlight lens 40 for use in the vehicle headlight 1 as an alternative to the headlight lenses 2, 2A, 2B, 2C in a plan view in a direction corresponding to the direction of the arrow 15 shown in FIG. 2, wherein - as well as in Reference to the remaining figures - the same reference numerals as in the aforementioned figures denote the same or similar elements.
- an emblem 41 is arranged as a lettering on the essentially planar surface 5 of the headlight lens 40 facing the light source 10.
- the emblem 41 can be designed in accordance with the emblem 20, 20A, 20B, 20C, 31 or 31 A.
- the essentially flat surface 5 facing the light source 10 comprises an area 42 with a (surface) roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular with a light transmission on the surface of at least 90%.
- the area has a roughness of 0.33 ⁇ m with a light transmission on the surface of at least 90%.
- FIG. 14 shows an advantageous exemplary embodiment of a headlight lens 50 for use in the vehicle headlight 1 as an alternative to the headlight lens 2, 2A, 2B, 2C in a plan view in a direction corresponding to the direction of the arrow 16 shown in FIG. 2, wherein - as well as in Reference to the remaining figures - the same reference numerals designate the same or similar elements.
- an emblem 51 is arranged as a lettering on the essentially planar surface 5 of the headlight lens 50 facing the light source 10.
- the emblem 51 can be configured in accordance with the emblem 31 or 31A.
- the essentially convex surface 5 facing away from the light source 10 comprises an area 52 surrounding the emblem 51 in a ring shape with a (surface) roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular with a light transmission on the surface of at least 90%.
- the area has a roughness of 0.45 ⁇ m with a light transmission on the surface of at least 90%.
- the essentially planar surface 5 of the headlight lens 50 facing the light source 10 has a region corresponding to the region 42 with a (surface) roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular with a Surface light transmission of at least 90%.
- the floor surfaces 22A, 22B and / or 33 completely or partially have a (surface) roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular with a light transmission on the surface of at least 90%, exhibit.
- FIG. 15 shows a particularly advantageous exemplary embodiment of a headlight lens 60 for use in the vehicle headlight 1 as an alternative to the headlight lenses 2, 2A, 2B, 2C in a plan view in a direction corresponding to the direction of the arrow 16 shown in FIG. 2 and FIG. 16 shows the direction Headlight lens 60 in a plan view in a direction corresponding to the direction of arrow 15 shown in FIG. 2.
- an emblem 61 is arranged in an exemplary embodiment as a prism body delimited by delimitation surfaces designated by reference numerals 65, 66, 67, 68.
- the emblem 60 can protrude into the lens body in a manner similar to the emblem 30A in FIG. 12 or in relief-like manner over the essentially flat surface 5 facing the light source 10 or a part of the essentially flat surface 5 facing the light source 10 protrude.
- the emblem 60 can also be arranged in a depression in the lens body, with this embodiment advantageously projecting in a relief-like manner over a bottom surface of the depression in a manner similar to the emblem 30 in FIG. 11.
- boundary surfaces 65, 66, 67, 68 are inclined with respect to the substantially planar surface 5 facing the light source 10 or with respect to an optical axis of the headlight lens 60 such that the convex surface 4 facing away from the light source 10 along the optical axis of the headlight lens 60 light penetrating into the lens body 3 is subject to total reflection at the boundary surfaces 65, 66, 67, 68.
- the boundary surfaces 65, 66, 67, 68 are inclined with respect to the substantially planar surface 5 facing the light source 10 or with respect to an optical axis of the headlight lens 60 such that the convex surface 4 facing away from the light source 10 along the optical axis of the headlight lens 60 light penetrating into the lens body 3 is subject to total reflection at the boundary surfaces 65, 66, 67, 68.
- the emblem 61 is inclined by an angle of 47 ° with respect to the substantially planar surface 5 facing the light source 10 and with an angle of 43 ° with respect to the optical axis of the headlight lens 60. Due to the inclined arrangement of the boundary surfaces 65, 66, 67, 68, it is achieved that the emblem 61 has a silvery coloration - symbolized by the thick hatching - in a top view according to FIG. 15 and is therefore clearly visible. 16, on the other hand, the emblem 61 is transparent except for the edges of the boundary surfaces 65, 66, 67, 68, so that only a negligible change in the beam path of light generated by the light source 10 occurs due to the emblem 61.
- the essentially planar surface 5 facing the light source 10 and / or the essentially convex surface 4 facing away from the light source 10 has a region with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m. has or have.
- This area comprises the essential part of the essentially planar surface 5 facing the light source 10 and / or the essential part of the essentially convex surface 4 facing away from the light source 10, but not the boundary surfaces 65, 66, 67, 68.
- FIG. 17 shows a further exemplary embodiment of a headlight lens 70 for use in the vehicle headlight 1 as an alternative to the headlight lenses 2, 2A, 2B, 2C in a plan view in a direction corresponding to the direction of the arrow 16 shown in FIG. 2, and FIG. 18 shows the headlight lens 70 in a plan view in a direction corresponding to the direction of the arrow 15 shown in FIG. 2, wherein — as also in relation to the other figures — the same reference symbols designate the same or similar elements.
- an emblem 71 is arranged in an exemplary embodiment as a lettering.
- FIG. 19 shows a cross section of the headlight lens 70 along the section line C-C according to FIG. 18.
- the emblem 71 projects into the lens body 3, but advantageously at no point more than 6 mm.
- the essentially flat surface 5 facing the light source 10 has an area 72 with a (surface) roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular with a light transmission on the surface of at least 90%.
- the area 72 has a roughness of 0.25 ⁇ m with a light transmission on the surface of at least 90%.
- FIG. 20 shows a further exemplary embodiment of a headlight lens 80 for use in the vehicle headlight 1 as an alternative to the headlight lenses 2, 2A, 2B, 2C in a plan view in a direction corresponding to the direction of the arrow 16 shown in FIG. 2, wherein - as well as in Reference to the remaining figures - the same reference numerals designate the same or similar elements.
- FIG. 21 shows a cross section of the headlight lens 80 along the section line DD according to FIG. 20.
- the trunk 82, legs 83, head 84 and ladybug points 85 have different heights and / or different surface roughness, in particular of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m.
- the ladybug spots 85 each have a base area 90 which is inclined relative to the essentially planar surface 5 facing the light source 10 or with respect to an optical axis 88 of the headlight lens 80 such that the convex surface 4 facing away from the light source 10 along the optical surface Axis 88 of the headlight lens 80, light penetrating into the lens body 3 on the base surfaces 90 is subject to total reflection.
- the base surfaces 90 with respect to the substantially plane surface 5 facing the light source 10 by an angle ⁇ between 25 ° and 80 °, in particular between 35 ° and 60 °, or with respect to the optical axis 88 of the headlight lens 80 by one Angle ⁇ between 10 ° and 65 °, in particular between 30 ° and 55 °, are inclined.
- the base surfaces 90 are inclined by an angle ⁇ of 45 ° with respect to the essentially planar surface 5 facing the light source 10 and with respect to the optical axis 88 of the headlight lens 80 by an angle ⁇ of 45 °.
- the ladybug points 85 have a silvery coloration - symbolized by the thick hatching - in a top view according to FIG. 20 and are therefore clearly visible.
- the ladybug spots 85 are transparent except for their edges, so that only a negligible change in the beam path of light generated by the light source 10 is caused by the ladybug spots 85.
- one of the bottom surfaces 91 of the depression 89 has an area with a roughness of at least 0.05 ⁇ m, in particular at least 0.08 ⁇ m, in particular with a light transmission on the surface of at least 90%.
- a projection of the base surfaces 25, 25A, 25B, 25C, 35, 35A, 90 or the boundary surfaces 65, 66, 67, 68 onto the essentially flat surface 5 to be turned towards the light source 10 is less than 30%.
- the essentially planar surface 5 to be turned towards the light source 10 or that a projection of the base surfaces 25, 25A, 25B, 25C, 35, 35A, 90 or the boundary surfaces 65, 66, 67, 68 onto the surface of the light source 10 essentially convex surface 4 covers less than 30% of the substantially convex surface 4 to be turned away from the light source 10.
- the essentially flat surface 5 facing the light source 10 can also be designed to be somewhat curved.
- a substantially flat surface in the sense of the invention can also comprise a - convex or concave - curved surface, the However, the radius of curvature, in particular by more than twice, is greater than the radius of curvature of the essentially convex surface.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004011104A DE102004011104A1 (en) | 2004-03-07 | 2004-03-07 | Headlight lens for a motor vehicle headlight |
PCT/EP2005/001931 WO2005086125A1 (en) | 2004-03-07 | 2005-02-24 | Headlight lens for a motor vehicle headlight |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1726001A1 true EP1726001A1 (en) | 2006-11-29 |
EP1726001B1 EP1726001B1 (en) | 2009-04-15 |
Family
ID=34895005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05707605A Not-in-force EP1726001B1 (en) | 2004-03-07 | 2005-02-24 | Headlight lens for a motor vehicle headlight |
Country Status (6)
Country | Link |
---|---|
US (1) | US7303319B2 (en) |
EP (1) | EP1726001B1 (en) |
JP (1) | JP4688863B2 (en) |
AT (1) | ATE429008T1 (en) |
DE (2) | DE102004011104A1 (en) |
WO (1) | WO2005086125A1 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102004011104A1 (en) | 2004-03-07 | 2005-09-29 | Docter Optics Gmbh | Headlight lens for a motor vehicle headlight |
US20060022838A1 (en) * | 2004-07-27 | 2006-02-02 | Fisher Richard A | Speed limit indicia for traffic signals |
DE102006019399A1 (en) | 2006-04-24 | 2007-10-25 | Docter Optics Gmbh | Method for producing a headlight lens for a motor vehicle headlight |
US20090228328A1 (en) * | 2006-04-27 | 2009-09-10 | Jonathan Cagan | Method and Apparatus for Quantifying Aesthetic Preferences in Product Design Using Production Rules |
US8939621B2 (en) * | 2010-06-17 | 2015-01-27 | Ford Global Technologies, Llc | Headlamp with backlit side bezel signature image |
DE102011014113A1 (en) | 2011-03-16 | 2012-09-20 | Automotive Lighting Reutlingen Gmbh | Transparent appearance of a lighting device of a motor vehicle |
DE102012001499A1 (en) * | 2012-01-28 | 2013-08-01 | Ahmet Aslan | Device for applying e.g. logo as daylight in headlight of passenger car, has lighting units designed as LEDs and arranged adjacent to each other in headlight, and reflectors arranged in headlight or in rear light |
US8858025B2 (en) * | 2012-03-07 | 2014-10-14 | Lg Innotek Co., Ltd. | Lighting device |
WO2014020848A1 (en) * | 2012-08-02 | 2014-02-06 | 株式会社小糸製作所 | Optical member made of resin and lamp tool for vehicle |
CN107883219B (en) | 2012-08-10 | 2020-10-09 | Lg伊诺特有限公司 | Lighting device |
US8960977B2 (en) | 2012-08-10 | 2015-02-24 | Lg Innotek Co., Ltd. | Illuminating device |
US9587794B2 (en) | 2014-05-21 | 2017-03-07 | Ford Global Technologies, Llc | Headlamp assembly with multiple high aspect ratio lenses |
US20170129393A1 (en) * | 2015-11-06 | 2017-05-11 | Ford Global Technologies, Llc | Vehicle lighting assembly having retractable cover providing a lighted image |
US9909747B2 (en) | 2015-11-06 | 2018-03-06 | Ford Global Technologies, Llc | Vehicle lighting assembly with retractable cover providing daylight running lamp |
US9500333B1 (en) | 2015-12-18 | 2016-11-22 | Ford Global Technologies, Llc | Phosphorescent lighting assembly |
DE102016204344A1 (en) * | 2016-03-16 | 2017-09-21 | Bayerische Motoren Werke Aktiengesellschaft | Headlight for a motor vehicle |
US10267482B2 (en) * | 2017-05-05 | 2019-04-23 | Ford Global Technologies, Llc | Vehicular lighting assemblies and headlamps with condenser lenses configured to prevent solar damage |
US20210222854A1 (en) * | 2017-07-07 | 2021-07-22 | Sato Light Industrial Co., Ltd. | Illumination device |
JP7146914B2 (en) * | 2017-11-06 | 2022-10-04 | ピアッジオ・エ・チ・ソチエタ・ペル・アツィオーニ | vehicle headlight |
US11629839B2 (en) * | 2020-03-25 | 2023-04-18 | Flex-N-Gate Advanced Product Development, Llc | Hybrid lamp for a vehicle |
EP3974709A1 (en) | 2020-09-25 | 2022-03-30 | ZKW Group GmbH | Lighting device for a motor vehicle headlight |
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US2596879A (en) * | 1949-09-27 | 1952-05-13 | Dennis E Warren | Motor vehicle headlight marker |
US2824399A (en) * | 1954-11-24 | 1958-02-25 | Edwin A Neugass | Illuminated panels |
US2918034A (en) * | 1957-10-01 | 1959-12-22 | Edwin A Neugass | Instrument lighting |
DE3602262C2 (en) | 1985-11-07 | 1995-05-11 | Bosch Gmbh Robert | Refractor element for a motor vehicle headlight for low beam or fog light |
JPH01103105U (en) * | 1987-12-26 | 1989-07-12 | ||
JP2762016B2 (en) * | 1993-06-15 | 1998-06-04 | 三菱自動車工業株式会社 | emblem |
US5434754A (en) * | 1993-12-27 | 1995-07-18 | Ford Motor Company | Light manifold |
US5621571A (en) * | 1994-02-14 | 1997-04-15 | Minnesota Mining And Manufacturing Company | Integrated retroreflective electronic display |
US5652565A (en) * | 1995-12-13 | 1997-07-29 | Salcedas; Ana S. | Auto brake light |
US5806957A (en) * | 1996-02-22 | 1998-09-15 | Siegel-Robert, Inc. | Sealed automotive emblem lighting assembly and method |
JPH10294004A (en) * | 1997-04-18 | 1998-11-04 | Stanley Electric Co Ltd | Vehicular headlight |
DE19829586A1 (en) | 1998-07-02 | 2000-01-05 | Volkswagen Ag | Headlamp for cars |
DE29912504U1 (en) * | 1999-07-16 | 1999-09-16 | Hella Kg Hueck & Co, 59557 Lippstadt | Headlights for vehicles |
DE19933766A1 (en) | 1999-07-19 | 2001-05-17 | Volkswagen Ag | Light unit for vehicle has reflector chambers formed into two stacked planes with chamber for flasher light beneath chambers for dipped and main beams and/or for signaling lights |
FR2815425B1 (en) | 2000-10-12 | 2003-10-31 | Holophane | PIECE OF TRANSPARENT MATERIAL AND LENS OF HEADLIGHTS OF VEHICLES |
DE10052653A1 (en) | 2000-10-24 | 2002-05-02 | Volkswagen Ag | Lighting arrangement for motor vehicles |
DE10118687A1 (en) | 2001-04-14 | 2002-10-17 | Bayerische Motoren Werke Ag | Motor vehicle headlamp arrangement has linear light unit in form of tubular gas discharge lamp controlled by voltage adapter that controls ignition voltage independently of temperature |
DE10121387C2 (en) * | 2001-05-02 | 2003-06-12 | Daimler Chrysler Ag | Light unit with a registration mark for motor vehicles |
FR2836714B1 (en) | 2002-03-01 | 2004-10-22 | Holophane | HEADLIGHT COMPRISING A GLASS LENS AND A PLASTIC LENS SUPPORT AND TOOL FOR OVERMOLDING THE SUPPORT ON THE LENS |
DE10311688B4 (en) * | 2003-03-17 | 2007-06-06 | Volkswagen Ag | Lighting device for vehicles |
JP2005010730A (en) * | 2003-05-28 | 2005-01-13 | Mitsubishi Electric Corp | Transmission type screen and projection type display device |
DE102004011104A1 (en) | 2004-03-07 | 2005-09-29 | Docter Optics Gmbh | Headlight lens for a motor vehicle headlight |
-
2004
- 2004-03-07 DE DE102004011104A patent/DE102004011104A1/en not_active Withdrawn
-
2005
- 2005-02-24 DE DE502005007088T patent/DE502005007088D1/en active Active
- 2005-02-24 AT AT05707605T patent/ATE429008T1/en not_active IP Right Cessation
- 2005-02-24 JP JP2007502222A patent/JP4688863B2/en not_active Expired - Fee Related
- 2005-02-24 EP EP05707605A patent/EP1726001B1/en not_active Not-in-force
- 2005-02-24 WO PCT/EP2005/001931 patent/WO2005086125A1/en not_active Application Discontinuation
- 2005-03-07 US US11/074,984 patent/US7303319B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2005086125A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2005086125A1 (en) | 2005-09-15 |
JP2007528107A (en) | 2007-10-04 |
EP1726001B1 (en) | 2009-04-15 |
ATE429008T1 (en) | 2009-05-15 |
US7303319B2 (en) | 2007-12-04 |
DE102004011104A1 (en) | 2005-09-29 |
US20050207164A1 (en) | 2005-09-22 |
JP4688863B2 (en) | 2011-05-25 |
DE502005007088D1 (en) | 2009-05-28 |
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